CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id 7134
id 7134
authors Penttilä, Hannu (Ed.)
year 2001
title Architectural Information Management [Conference Proceedings]
doi https://doi.org/10.52842/conf.ecaade.2001
source 19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1 / Helsinki (Finland) 29-31 August 2001, 578 p.
summary Several common phrases, such as “information society” or “virtual reality” point out the fact that information technology, digital tools and numerous different services via various communication networks have become crucially important factors of our western lifestyle and living environment. The trends of the society reflects naturally the working environments of the construction field, architectural discipline being amongst them. It is almost inconceivable to even imagine an architect without computer-based tools anymore. This evolutional development process has, from historical perspective, only recently started. The process is constantly evolving and rapidly increasing our possibilities to use and enjoy these modern digital fruits. The sometimes unpredictable and rapid changes in our working environment should make architects nervous about the impacts of the changes. All those delicate methods and collective traditions of the several thousand year architectural discipline(!), just simply cannot be transferred into the digital realm in a few decades. Researchers and teachers should very carefully, but still open mindedly, critically explore, analyse and adjust the so-called “modern technology” into the world of architecture, construction, design, planning – and education. We are not just “endusers”, It is we, in fact, who should define what, where and how are we willing to use it(IT). The value of information is constantly growing in our society, and in the future it will evidently be even more so. The value of information is quite hard to define with measurable or agreed concepts, but information evidently contains value-factors. The information which the architects are creating, modifying and manipulating, contains essential and valuable core data concerning the whole built environment of our society. It affects the physical surroundings of our society, in which we will be living for decades – hence, the information has a historical basis. The architectural core information also very strongly affects the quality of life of our fellow citizens – consequently, it has deep social meaning. The essentials of architectural information relies on the tradition of centuries – hence, it clearly has acknowledged cultural values, which are also extremely difficult to quantify. So how could architectural information be described? The information covers a wide range of heterogeneous concepts, items, values, methods, tools, materials, true facts, rumours, intuition and knowledge, plus a multitude of yet undefined or unpredictable factors, which still have to be watched and prepared for. Since the information deals with common and general subjects, it should also be described with common and general concepts. On the other hand as the information is also concerned with the minutiae of specific projects, the architectural information should also be described with well identified and unique entities. With our digital tools we handle all information – including architectural – more and more digitally. We have to handle and manipulate information currently as digital data, which could be understood the ”raw material” of architectural information. Digital data becomes valuable information, when some kind of meaning or purpose to somebody can be attributed to it. In the early gloomy days of ”digital architecture” in the 1960’s and 1970’s, researchers tried to describe architectural artefacts and even design process mathematically. The details of architectural information were quite difficult to describe with binary alphanumeric information of main-frame machines. The architects’ tools development then led to a trend where architects could better represent and visualize the design objects digitally. The widespread and common use of 2D-drawing and 3D-modelling tools is still a very strong trend within our discipline. In fact it is “the way” the majority of architectural information is managed today. During the last 15–20 years, so-called conceptual modelling or product data modelling, done in various technical and construction field research units worldwide, has from one viewpoint clarified the basis and essence of architectural information. Hence, it’s not only CAD-software application development, but also elementary and theoretical research that gives us valuable help to survive among the ever growing seas of terabits of data in the future to come. Architectural information is something that simply cannot be described just with DWG-drawings or dummy scanned photographs any more. Although drawings and photos may contain very important bits of architectural documentation, we need ntimes more “complexity layers”, concepts and tools to manage and understand the essence of architectural information today. A proper way to manage the data we are working with, has to cover the whole architectural discipline. The methods and tools also have to be valid and flexible for several decades in the future.
keywords Information Management & Data Structuring, Education & Curricula, Modeling & City Planning
series eCAADe
email
more http://www.hut.fi/events/ecaade/
last changed 2022/06/07 07:49

_id 0651
authors Petzold, F., Thurow, T., Richter, K. and Donath, D.
year 2001
title Planning-oriented building surveying - Modules in the computer aided architectural planning process of existing buildings
doi https://doi.org/10.52842/conf.ecaade.2001.144
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 144-149
summary Activities in the building industry in Germany concentrate increasingly on a combination of renovation and new-build. A prerequisite for computer-aided planning in the context of existing buildings is both the use of on-site computer aided surveying techniques and the integration of all professional disciplines in an integrated information and communication system. Current approaches to these issues are unsatisfactory. Methods and techniques in renovation work are being investigated as part of ongoing research at the Bauhaus- Universität Weimar (SFB524 - “Collaborative research center 524 „Materials and Structure in Revitalization of Buildings”). A sub-group (SFB524 - D2 „Planning-Relevant Digital Building Surveying and Information System”) is currently investigating the possibilities of computer-aided building surveying and of joint communcation platforms for engineering disciplines (www.uni-weimar.de/sfb: May 2001). The objective is the development of a general approach for the renovation of buildings. The paper discusses concepts and requirements for a computer-aided system supporting the entire surveying process from the initial site visit to its use in a CAD system.
keywords Surveying, CAAD Systems, Computer Aided Planning Process, Building Model
series eCAADe
email
last changed 2022/06/07 08:00

_id avocaad_2001_07
id avocaad_2001_07
authors Stefan Wrona, Adam Gorczyca
year 2001
title Complexity in Architecture - How CAAD can be involved to Deal with it. - "Duality"
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary “Complexity “ is for us a very ambigous notion. It may be understood in two contexts.1.Thorough solution of a problem.Complexity means full recognition of design area, followed by appropriate work. That work must be thorough and interdisciplinary – if necessary, separated to different co-operatives. These trade designers reqiure a branch coordination and – the most important- all of them must have a „common denominator”. Such as a proper CAAD platform and office standards. That will reduce costs of changes, improve an interplay between designers and somtimes enable to face up a new challenge.Nowadays architects are no longer “solitary” individualists working alone – they must concern a team – they become a member, a part of a huge design machine. “Import/export”, compatibility, interplay – these words must appear and we have to put a stress on them. How to organize work for different trade-designers? How to join in common database architectural design ,engineering design, HVAC design, electricity design, technology design, computer network design and all other trades ?...A key to solve this range of problems is in good work organization. Universal prescription does not exist, but some evergreen rules can be observed. We are going to present a scheme of work in CAAD application ALLPLAN FT v.16 with a Group manager , which starts to conquest polish market and is widely spread in Germany. “Golden rules” of ALLPLAN FT There is one database – it is placed on server. It includes all projects. There is a well-developed office standard. It must be created at the beginning of collaboration, although it is possible to improve it later. It consist of hatches, fonts, symbols, macros, materials, pen-widths, and – the most important –layers . A layer set – predefined structure divided into functional groups – e.g. drafting, text, dimensioning, architecture, HVAC, engineering, urban design, etc.That stucture is a part of an office standard – all workers use a relevant part of it. No name duplicates, no misunderstandings... If however design extends, and a new group of layers is required, it can be easily added, e.g. computer networks, fireguard systems. Administrator of ALLPLAN network defines different users and gives them different permitions of access. For example – an electrician will be able to draft on layer “electricity”, but he won’t modify anything at layer “architecture – walls”, and he won’t even see a layer “engineering- slabs”, because he doesn’t need it..At the same time our electrician will be able to see , how architect moves some walls and how HVAC moved and started to cross with his wires. Every user is able to see relevant changes, after they are saved by author. Two different users can not access at the same time the same file. That excludes inconsistent or overlapping changes . All users operate on a 3D model. While putting some data into a model, they must remember about a “Z” coordinate at work-storey. But at the same time all create a fully-integrated, synchronous database, which can be used later for bills of quantities, specifications, and – of course – for visuaisation. That method can be described as “model-centric”. To simplify complex structure of architectural object -ALLPLAN offers files. Usually one file means one storey, but at special designs it might become a functional part of a storey, or whatever you wish. Files connected with layers easy enable to separate certain structural elements, e.g. if we want to glance only at concrete slabs and columns in the building – we will turn on all files with “layer filter” – “slabs” and “columns”. ALLPLAN is of course one of possible solutions. We described it , because we use it in our workshop. It seems to be stretchy enough to face up every demand and ever-increasing complexity of current projects. The essence of the matter, however, is not a name or version of application – it is a set of features, we mentioned above, which allows to deal with EVERY project. The number of solutions is infinite.2. Increasing difficulties during design process. It may be associated with more and more installations inside of new buildings, especially some “high-tech” examples. The number of these installations increases as well as their complexity. Now buildings are full of sensors, video-screens, computer networks, safety-guard systems... Difficulties are connected with some trends in contemporary architecture, for example an organic architecture, which conceives “morphed” shapes, “moving” surfaces, “soft” solids. This direction is specially supported by modelling or CAD applications. Sometimes it is good – they allow to realize all imaginations, but often they lead to produce “unbuildable” forms, which can exist only in virtual world.Obstacles appear, when we design huge cubatures with “dense” functional scheme. Multi-purposed objects, exhibition halls, olimpic stadium at Sydney – all of them have to be stretchy, even if it requires sliding thousands pound concrete blocks! Requirements were never so high.The last reason, why designs become so complex is obvious - intensifying changes due to specific requirements of clients/developers.We could say “ signum tempori” – everything gets more and more complicated , people have to become specialists, to face up new technology. But how CAAD can help us with it? How?! We have already answered that question. Sometimes CAAD is the only way to imagine and sketch something, to visualize something, to compute a construction , to prepare a simulation... So that human must “only” interprete ready solutions. Sometimes CAAD help us to notify a problem. It works exactly in the same way, as spy-glasses does. For example – without a real-time visualization we we would have never realised (until finished!) some strange interference of solids, which have occured in the upper roof part of our new appartment-house.ConclusionsTemporary CAAD is an integral part of design process – not only as a tool, but sometimes as an inspiration. It helps to organize our work, to define problems, to filter relevant elements and to render our visions. It becomes an integral part of our senses – and that will be a real complexity in architecture...
series AVOCAAD
email
last changed 2005/09/09 10:48

_id ecaade2016_210
id ecaade2016_210
authors Abdelmohsen, Sherif, Massoud, Passaint and Elshafei, Ahmed
year 2016
title Using Tensegrity and Folding to Generate Soft Responsive Architectural Skins
doi https://doi.org/10.52842/conf.ecaade.2016.1.529
source Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 529-536
summary This paper describes the process of designing a prototype for a soft responsive system for a kinetic building facade. The prototype uses lightweight materials and mechanisms to generate a building facade skin that is both soft (less dependent on hard mechanical systems) and responsive (dynamically and simultaneously adapting to spatial and environmental conditions). By combining concepts stemming from both tensegrity structures and folding mechanisms, we develop a prototype that changes dynamically to produce varying facade patterns and perforations based on sensor-network data and feedback. We use radiation sensors and shape memory alloys to control the prototype mechanism and allow for the required parametric adaptation. Based on the data from the radiation sensors, the lengths of the shape memory alloys are altered using electric wires and are parametrically linked to the input data. The transformation in the resulting overall surface is directly linked to the desired levels of daylighting and solar exposure. We conclude with directions for future research, including full scale testing, advanced simulation, and multi-objective optimization.
wos WOS:000402063700058
keywords Soft responsive systems; tensegrity; folding; kinetic facades
series eCAADe
email
last changed 2022/06/07 07:54

_id ecaade2016_073
id ecaade2016_073
authors Borhani, Alireza and Kalantar, Negar
year 2016
title Material Active Geometry - Constituting Programmable Materials for Responsive Building Skins
doi https://doi.org/10.52842/conf.ecaade.2016.1.639
source Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 639-648
summary This paper is part of a body of research developing an exploratory dialogue between the built form and the environment, via experimentation with performative geometry and material. Here, geometry is considered a design material with the specific capacity to contribute to the performative aspects and kinetic capabilities of building skins.This work opens with a review of emerging opportunities for architects to design materials. It then discusses the concept of Material Active Geometry (MAG) as a means of designing new properties for existing materials. This is followed by a discussion of MAG principles that inform the concepts of flexibility and rigidity in a 3D-printed textile called Flexible Textile Structure (FTS). This research characterizes two FTS types and discusses their potential to be employed in building skins; it also considers combinatory approaches to computational models and physical prototyping. The work concludes with a discussion of the advantages of using FTS, and provides a trajectory for future research in the field of responsive materials and systems.
wos WOS:000402063700069
keywords Programmable Material; Material Active Geometry; Flexible Textile Structures; Responsive Building Skins; Flexible yet Rigid
series eCAADe
email
last changed 2022/06/07 07:54

_id ef4b
authors Babalola, Olubi and Eastman, Charles
year 2001
title Semantic Interpretation of Architectural Drawings
doi https://doi.org/10.52842/conf.acadia.2001.166
source Reinventing the Discourse - How Digital Tools Help Bridge and Transform Research, Education and Practice in Architecture [Proceedings of the Twenty First Annual Conference of the Association for Computer-Aided Design in Architecture / ISBN 1-880250-10-1] Buffalo (New York) 11-14 October 2001, pp. 166-179
summary The paper reviews the needs and issues of automatically interpreting architectural drawings into building model representations. It distinguishes between recognition and semantic interpretation and reviews the steps involved in developing such a conversion capability, referring to the relevant literature and concepts. It identifies two potentially useful components, neither of which has received attention. One is the development of a syntactically defined drafting language. The other is a strategy for interpreting the semantic content of architectural drawings, based on the analogy of natural language interpretation
keywords Semantic Interpretation, Drawing Understanding
series ACADIA
email
last changed 2022/06/07 07:54

_id 0f49
authors Burry, M., Coulson, J., Preston, J. and Rutherford, E.
year 2001
title Computer-aided design decision support: interfacing knowledge and information
source Automation in Construction 10 (2) (2001) pp. 203-215
summary Computer-aided design decision support has proved to be an elusive and intangible project for many researchers as they seek to encapsulate information and knowledge-based systems as useful multifunctional data structures. Definitions of `knowledge', `information', `facts', and `data' become semantic footballs in the struggle to identify what designers actually do, and what level of support would suit them best, and how that support might be offered. The Construction Primer is a database-drivable interactive multimedia environment that provides readily updated access to many levels of information aimed to suit students and practitioners alike. This is hardly a novelty in itself. The innovative interface and metadata structures, however, combine with the willingness of national building control legislators, standards authorities, materials producers, building research organisations, and specification services to make the Construction Primer a versatile design decision support vehicle. It is both compatible with most working methodologies while remaining reasonably future-proof. This paper describes the structure of the project and highlights the importance of sound planning and strict adhesion to library-standard metadata protocols as a means to avoid the support becoming too specific or too paradigmatic.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:22

_id avocaad_2001_02
id avocaad_2001_02
authors Cheng-Yuan Lin, Yu-Tung Liu
year 2001
title A digital Procedure of Building Construction: A practical project
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary In earlier times in which computers have not yet been developed well, there has been some researches regarding representation using conventional media (Gombrich, 1960; Arnheim, 1970). For ancient architects, the design process was described abstractly by text (Hewitt, 1985; Cable, 1983); the process evolved from unselfconscious to conscious ways (Alexander, 1964). Till the appearance of 2D drawings, these drawings could only express abstract visual thinking and visually conceptualized vocabulary (Goldschmidt, 1999). Then with the massive use of physical models in the Renaissance, the form and space of architecture was given better precision (Millon, 1994). Researches continued their attempts to identify the nature of different design tools (Eastman and Fereshe, 1994). Simon (1981) figured out that human increasingly relies on other specialists, computational agents, and materials referred to augment their cognitive abilities. This discourse was verified by recent research on conception of design and the expression using digital technologies (McCullough, 1996; Perez-Gomez and Pelletier, 1997). While other design tools did not change as much as representation (Panofsky, 1991; Koch, 1997), the involvement of computers in conventional architecture design arouses a new design thinking of digital architecture (Liu, 1996; Krawczyk, 1997; Murray, 1997; Wertheim, 1999). The notion of the link between ideas and media is emphasized throughout various fields, such as architectural education (Radford, 2000), Internet, and restoration of historical architecture (Potier et al., 2000). Information technology is also an important tool for civil engineering projects (Choi and Ibbs, 1989). Compared with conventional design media, computers avoid some errors in the process (Zaera, 1997). However, most of the application of computers to construction is restricted to simulations in building process (Halpin, 1990). It is worth studying how to employ computer technology meaningfully to bring significant changes to concept stage during the process of building construction (Madazo, 2000; Dave, 2000) and communication (Haymaker, 2000).In architectural design, concept design was achieved through drawings and models (Mitchell, 1997), while the working drawings and even shop drawings were brewed and communicated through drawings only. However, the most effective method of shaping building elements is to build models by computer (Madrazo, 1999). With the trend of 3D visualization (Johnson and Clayton, 1998) and the difference of designing between the physical environment and virtual environment (Maher et al. 2000), we intend to study the possibilities of using digital models, in addition to drawings, as a critical media in the conceptual stage of building construction process in the near future (just as the critical role that physical models played in early design process in the Renaissance). This research is combined with two practical building projects, following the progress of construction by using digital models and animations to simulate the structural layouts of the projects. We also tried to solve the complicated and even conflicting problems in the detail and piping design process through an easily accessible and precise interface. An attempt was made to delineate the hierarchy of the elements in a single structural and constructional system, and the corresponding relations among the systems. Since building construction is often complicated and even conflicting, precision needed to complete the projects can not be based merely on 2D drawings with some imagination. The purpose of this paper is to describe all the related elements according to precision and correctness, to discuss every possibility of different thinking in design of electric-mechanical engineering, to receive feedback from the construction projects in the real world, and to compare the digital models with conventional drawings.Through the application of this research, the subtle relations between the conventional drawings and digital models can be used in the area of building construction. Moreover, a theoretical model and standard process is proposed by using conventional drawings, digital models and physical buildings. By introducing the intervention of digital media in design process of working drawings and shop drawings, there is an opportune chance to use the digital media as a prominent design tool. This study extends the use of digital model and animation from design process to construction process. However, the entire construction process involves various details and exceptions, which are not discussed in this paper. These limitations should be explored in future studies.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id bbfa
authors Donath, D., Beetz, J., Grether, K., Petzold, F. and Seichter, H.
year 2001
title Augmented Reality Techniques for Design and Revitalisation in Existing Built Environments
doi https://doi.org/10.52842/conf.acadia.2001.322
source Reinventing the Discourse - How Digital Tools Help Bridge and Transform Research, Education and Practice in Architecture [Proceedings of the Twenty First Annual Conference of the Association for Computer-Aided Design in Architecture / ISBN 1-880250-10-1] Buffalo (New York) 11-14 October 2001, pp. 322-329
summary Building activity in Germany is moving increasingly toward combined newbuild and renovation projects. Essential for effective computer-aided planning within an existing context is not only the use of on-site computer-aided measurement tools but also an integrative cooperation between the different disciplines involved via an information and communication system. Interdisciplinary cooperation needs to be tailored to the integrative aspects in renovation and revitalisation work. Economic factors determine the viability of an architectural project, and reliable costing information is vital. Existing IT-approaches to this problem are not yet sufficiently exploited. In ongoing research at our university (collaborative research center ”Materials and Structure in the Revitalisation of Buildings”) methods and techniques of revitalisation are being investigated. A special branch of the collaborative research center is investigating possibilities of computer-aided building measurement and communication platforms for professional disciplines (www.uni-weimar.de/sfb). The aim is to develop a general approach to the revitalisation of buildings. This paper discusses possible application areas of AR/VR techniques in the revitalisation of buildings from the point of view of the user and are based on the real project “Cooling factory Gera”. Based on the necessities of revitalisation projects, technical requirements are developed. The project is funded by the Deutsche Forschungsgesellschaft (DFG).
keywords Augmented Reality, Architecture, Modernization, Measurement
series ACADIA
email
last changed 2022/06/07 07:55

_id 912b
authors Flemming, Ulrich and Aygen, Zeyno
year 2001
title A hybrid representation of architectural precedents
source Automation in Construction 10 (6) (2001) pp. 687-699
summary We present a hybrid representation of architectural precedents that separates precedent instances from the concepts they embody, where the concepts are defined in terms of multiple classification taxonomies. The representation allows us to combine the classical view of concept acquisition with aspects of the probabilistic and exemplar views and to organize the database into the equivalents of "episodic" and "semantic" memory. A first application and test context is provided by the Software Environment to Support Early Building Design (SEED), where precedents are used as prototypes and cases. But the representation is flexible enough to support the use of precedents in other application contexts.
series journal paper
email
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:22

_id dfe6
authors Hendricx, Ann and Neuckermans, Herman
year 2001
title The Use of Design Cases to Test Architectural Building Models
doi https://doi.org/10.52842/conf.ecaade.2001.073
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 73-78
summary The IDEA+ project aims at developing an Integrated Design Environment for Architect designers, in which design tools and computational tests make use of one and the same core building description. Such a description must be apt to describe architecture in a full-fledged way. Hereto, the authors have put the IDEA+ model to the test with actual design cases. These cases have been used to test isolated design concepts and to mimic the global design process.
keywords Building Model, CAAD, Case, Object-Oriented, Architecture, Architectural Model
series eCAADe
email
last changed 2022/06/07 07:49

_id caadria2007_233
id caadria2007_233
authors Hoseini, Ali Ghaffarian; Rahinah Ibrahim
year 2007
title Using Social Network Analysis for Visualising Spatial Planning During Conceptual Design Phase
doi https://doi.org/10.52842/conf.caadria.2007.x.i8r
source CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary Spatial diagramming exercises with clients are difficult when most clients are not able to visualize the end results of their requirements. This paper would like to introduce a computational tool—Social Network Analysis (SNA)—commonly used in the communications field to study relationships between people we believe can resolve this visualization problem. Our research intent is to affirm whether or not we can use SNA as a spatial planning tool during conceptual building design. We posit that since the nodes and structural relationships between the nodes may have similar architectural characteristics, the tool would enable architects to make changes by moving any spaces on a floor plan while safely maintaining their spatial relationships to other spaces. In this paper, we would like to develop a proof-of-concept model using an available SNA tool to facilitate spatial diagramming visualization during conceptual design phase. We tested the use of a SNA tool at four levels. The first level determined whether we could develop spatial relationship between functional spaces (such as the living room must be adjacent to the front entry). The second level is on setting priorities values for the different nodes and the linkages. The third level determined whether we could develop grouping relationship between several functional spaces that have a common characteristic (such as public versus private spaces) on one horizontal plane. The final fourth level determined whether we could develop multiple layers that are connected by one common connector (such as a staircase in a double-story house). Our models are validated intellectually by visual comparison between our model and another diagramming by Nooshin (2001) that was developed manually. We are most interested in the fourth level because complexity in the spatial diagramming exercises is caused by multi-layered spatial arrangements at the horizontal and vertical planes. We expect our study to provide us guidelines in developing a prototype for a spatial diagramming tool using SNA, which architects can use to resolve visualization problems when conducting the exercise with their clients.
series CAADRIA
email
last changed 2022/06/07 07:50

_id caadria2003_b6-1
id caadria2003_b6-1
authors Howe, A.S., Kang, P. and Nasari, Omid
year 2003
title Digiosk Digital Design to Robotic Deployment in Two Months
doi https://doi.org/10.52842/conf.caadria.2003.811
source CAADRIA 2003 [Proceedings of the 8th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 974-9584-13-9] Bangkok Thailand 18-20 October 2003, pp. 811-826
summary In this paper, we discuss Kit-of-parts Theory and how it applies to the design, manufacture, and operation of a small robotic deployable demonstration structure called the Digiosk (Howe, 2001). "Kit-of-parts Theory" refers to the study and application of objectoriented building techniques, where building components are predesigned / pre-engineered / pre-fabricated for inclusion in joint-based (linear element), panel-based (planar element), module-based (solid element), and deployable (time element) construction systems. The Digiosk is an exposition display kiosk that was designed and manufactured digitally, and brought from concept to robotic functionality in a short period of time. Using kinematic mechanisms the cylinder opens up and deploys into a 2.7m cubical display booth complete with integral power and network connections. The kiosk was designed using a solid modeler, from which data was extracted to drive digital manufacturing processes. Owing to the well-developed understanding of Kit-of-parts Theory and the new "kinematic architecture" principles, the paperless process yielded a working prototype only eight weeks after initial conceptualization. The paper concludes with a discussion of how these concepts can be applied to large-scale projects and design processes.
series CAADRIA
email
last changed 2022/06/07 07:50

_id avocaad_2001_22
id avocaad_2001_22
authors Jos van Leeuwen, Joran Jessurun
year 2001
title XML for Flexibility an Extensibility of Design Information Models
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary The VR-DIS research programme aims at the development of a Virtual Reality – Design Information System. This is a design and decision support system for collaborative design that provides a VR interface for the interaction with both the geometric representation of a design and the non-geometric information concerning the design throughout the design process. The major part of the research programme focuses on early stages of design. The programme is carried out by a large number of researchers from a variety of disciplines in the domain of construction and architecture, including architectural design, building physics, structural design, construction management, etc.Management of design information is at the core of this design and decision support system. Much effort in the development of the system has been and still is dedicated to the underlying theory for information management and its implementation in an Application Programming Interface (API) that the various modules of the system use. The theory is based on a so-called Feature-based modelling approach and is described in the PhD thesis by [first author, 1999] and in [first author et al., 2000a]. This information modelling approach provides three major capabilities: (1) it allows for extensibility of conceptual schemas, which is used to enable a designer to define new typologies to model with; (2) it supports sharing of conceptual schemas, called type-libraries; and (3) it provides a high level of flexibility that offers the designer the opportunity to easily reuse design information and to model information constructs that are not foreseen in any existing typologies. The latter aspect involves the capability to expand information entities in a model with relationships and properties that are not typologically defined but applicable to a particular design situation only; this helps the designer to represent the actual design concepts more accurately.The functional design of the information modelling system is based on a three-layered framework. In the bottom layer, the actual design data is stored in so-called Feature Instances. The middle layer defines the typologies of these instances in so-called Feature Types. The top layer is called the meta-layer because it provides the class definitions for both the Types layer and the Instances layer; both Feature Types and Feature Instances are objects of the classes defined in the top layer. This top layer ensures that types can be defined on the fly and that instances can be created from these types, as well as expanded with non-typological properties and relationships while still conforming to the information structures laid out in the meta-layer.The VR-DIS system consists of a growing number of modules for different kinds of functionality in relation with the design task. These modules access the design information through the API that implements the meta-layer of the framework. This API has previously been implemented using an Object-Oriented Database (OODB), but this implementation had a number of disadvantages. The dependency of the OODB, a commercial software library, was considered the most problematic. Not only are licenses of the OODB library rather expensive, also the fact that this library is not common technology that can easily be shared among a wide range of applications, including existing applications, reduces its suitability for a system with the aforementioned specifications. In addition, the OODB approach required a relatively large effort to implement the desired functionality. It lacked adequate support to generate unique identifications for worldwide information sources that were understandable for human interpretation. This strongly limited the capabilities of the system to share conceptual schemas.The approach that is currently being implemented for the core of the VR-DIS system is based on eXtensible Markup Language (XML). Rather than implementing the meta-layer of the framework into classes of Feature Types and Feature Instances, this level of meta-definitions is provided in a document type definition (DTD). The DTD is complemented with a set of rules that are implemented into a parser API, based on the Document Object Model (DOM). The advantages of the XML approach for the modelling framework are immediate. Type-libraries distributed through Internet are now supported through the mechanisms of namespaces and XLink. The implementation of the API is no longer dependent of a particular database system. This provides much more flexibility in the implementation of the various modules of the VR-DIS system. Being based on the (supposed to become) standard of XML the implementation is much more versatile in its future usage, specifically in a distributed, Internet-based environment.These immediate advantages of the XML approach opened the door to a wide range of applications that are and will be developed on top of the VR-DIS core. Examples of these are the VR-based 3D sketching module [VR-DIS ref., 2000]; the VR-based information-modelling tool that allows the management and manipulation of information models for design in a VR environment [VR-DIS ref., 2000]; and a design-knowledge capturing module that is now under development [first author et al., 2000a and 2000b]. The latter module aims to assist the designer in the recognition and utilisation of existing and new typologies in a design situation. The replacement of the OODB implementation of the API by the XML implementation enables these modules to use distributed Feature databases through Internet, without many changes to their own code, and without the loss of the flexibility and extensibility of conceptual schemas that are implemented as part of the API. Research in the near future will result in Internet-based applications that support designers in the utilisation of distributed libraries of product-information, design-knowledge, case-bases, etc.The paper roughly follows the outline of the abstract, starting with an introduction to the VR-DIS project, its objectives, and the developed theory of the Feature-modelling framework that forms the core of it. It briefly discusses the necessity of schema evolution, flexibility and extensibility of conceptual schemas, and how these capabilities have been addressed in the framework. The major part of the paper describes how the previously mentioned aspects of the framework are implemented in the XML-based approach, providing details on the so-called meta-layer, its definition in the DTD, and the parser rules that complement it. The impact of the XML approach on the functionality of the VR-DIS modules and the system as a whole is demonstrated by a discussion of these modules and scenarios of their usage for design tasks. The paper is concluded with an overview of future work on the sharing of Internet-based design information and design knowledge.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id 470c
authors Kuenstle, Michael W.
year 2001
title COMPUTATIONAL FLUID DYNAMIC APPLICATIONS IN WIND ENGINEERING FOR THE DESIGN OF BUILDING STRUCTURES IN WIND HAZARD PRONE AREAS (Computational Flow Dynamic Applications in Wind Engineering for the Design of Building Structures in Wind Hazard Prone Urban Areas)
source SIGraDi biobio2001 - [Proceedings of the 5th Iberoamerican Congress of Digital Graphics / ISBN 956-7813-12-4] Concepcion (Chile) 21-23 november 2001, pp. 67-70
summary This paper documents an initial study investigating the integration of Computational Fluid Dynamics (CFD) simulation modeling into wind mitigation design for building structures located in wind hazard prone areas. Some of the basic principles and theoretical concepts of fluid flow and wind pressure as well as their translation into design criteria for structural analysis and design are reviewed, followed by a discussion of a CFD application case study for a simulated hurricane force wind flow over a low rectangular building using the k-epsilon turbulence model. The techniques and parameters for development of the simulation are discussed and some preliminary interpretations of the results are evaluated by comparing its predictions against existing experimental and analytical data, with special attention paid to the American Society of Civil Engineers, Minimum Design Loads for Buildings and Other Structures, ACSE 7-98 and the Uniform Building Code .
series SIGRADI
email
last changed 2016/03/10 09:54

_id 0865
authors Mishima, Yoshitaka and Szalapaj, Peter John
year 2001
title Architectural Design Development through Multimedia Interaction
source Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 299-314
summary This paper describes the development of a multimedia system aimed at architects and architectural students for the purpose of helping them to understand the basic concepts of architectural analysis. Analytical features in the system that we have developed include many design-theoretic concepts such as massing, balance and circulation. Other concepts are more directly related to the built environment and include elements such as lighting, structure and construction. The system illustrates architectural analysis carried out on a range of building types dynamically, and allows users to navigate architectural analyses interactively. Users can learn about the differences between buildings and their corresponding analyses in a supportive non-linear learning process, and can explore building types depending upon their own interests or needs. The prototype system contains analyses of three British building projects. They show different types of architecture in order to demonstrate important design theoretic and environmental differences. Conceptual models in the system show important aspects of a particular analysis simply, and each analysis is additionally described with text, animations, video clips and interviews with architects (talking heads). Most of the models were generated by the use of architectural CAD software. Animation techniques were used to describe the analyses of buildings clearly and dynamically. Users can visualise how whole buildings were designed from an analytical point of view, and the system illustrates design thinking by showing dynamic presentations of analyses. Users can structure their own design learning processes through a series of interactions. These interactions are supported with flexible cross-referencing mechanisms implemented in Macromedia Director 8.0 exploiting Frame Markers, Event Handling, Navigation, and Buttons in the context of the object-oriented Lingo programming language. The navigation component of this system has a logical matrix structure reflecting the fact that analytical information is interrelated across building types, giving rise to vertical and horizontal patterns of access. The features of Director 8.0 can control this navigation in a flexible yet structured way. Users not only learn about analysis, but also how to present their own designs to the public through the use of different kinds of presentation techniques, particularly through the use of conceptual models. We intend that users can show their projects from their own analytical viewpoints instead of simply showing realistic images of final designs. Presentations can also be recorded in the system, and these can in turn be used as reference material for other users. This system is currently being developed further by storing presentations and translating them into different languages (e.g. Japanese) so that foreign users in other institutions can interact with these presentations. This system has been evaluated in the context of an undergraduate CAD course at the School of Architecture, University of Sheffield, UK. We are currently examining the usefulness of the system based upon an evaluation process, in addition to including more building types for future study.
keywords Analysis Of Form, Dynamic Interaction, Conceptual Models
series CAAD Futures
email
last changed 2006/11/07 07:22

_id 47a5
authors Mourshed, M.M., Kelliher, D. and Keane, M.
year 2001
title Spatial Representation in Product Modelling
source Proceedings of the IEEE International Conference on Information Visualisation, IV 2001, London, UK
summary An unambiguous definition of space is necessary before any attempt made to develop product or process models for concurrent engineering in the AEC Industry. The ambiguity is the result of different and even conflicting approach to its definition in the various phases of the building life cycle for different stakeholders, e.g. Architects, Engineers, and Building Services Engineer etc. Some researchers consider space as an abstract property of things, while others consider as a thing itself. Regardless of the definition, the space can be referred to as a collector of material objects and also as an object itself. This paper investigates the existing concepts & criteria of definition in various phases, compares with the factual and ontological meaning, and specifies conceptual schemas for representation of space, geometry, and buildings.
keywords Building Product Models; Space; IFC; STEP
series other
email
last changed 2003/03/31 19:49

_id 76ea
authors Petzold, F., Thurow, T. and Donath, D.
year 2001
title Planing relevant survey of buildings - starting point in the revitalization process of existing buildings - requirements, concepts, prototypes and visions
source Abstract Book CIPA 2001 International Symposium, Potsdam 2001, pp. 58
summary Future tasks for the building trade in Germany will be more and more a combination of the fields of revitalization and new building projects. Prerequisite for computer-aided planing for existing buildings is both, the use of onsite computer-aided measurement and the integration of all specialists involved in the building process. Existing approaches for this problem are not yet satisfying. The aim of this research project is twofold: to design a practice-relevant software concept and to develop various prototypic systems, for a structured way of capturing and organizing building-related information about existing buildings in digital form. The research is oriented towards existing buildings, in particular residential and commercial buildings. This project is a special branch of SFB524. The project is founded by "Deutsche Forschungsgesellschaft (DFG)".
series other
email
last changed 2003/02/26 18:58

_id avocaad_2001_12
id avocaad_2001_12
authors Pongratz, Perbellini
year 2001
title Intermedial Architecture
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary A great part of our physical environment and existence is currently undergoing an epochal transformation from a solid to a liquid state on many layers of technological evolution. Optical phenomena and radical shifts in visuality, particularly manifest through media propagation are impacting on urban space in unpredictable ways. City - space is not only perceived as a physical place but also simultaneously inhabited as a virtual site. Both conditions form the hybrid of an urban realm, construed as surveillance, simulation, distraction and a relentless proliferation of information. Ultimately, all man-machine interfaces of hardware will be adequately infinitely machined. This process however will continue beyond the now experienced level of TV, video, cellular-phones and computers, incorporating interconnected surfaces of text, music and other kind of data. The surrounding sensorium will penetrate the phenomenological tissue of our nervous system to the extent that we are unconsciously fluidly interacting. Behavioral properties of matter and their smooth transmittal of visual, sound and tactile sensations, will provide an intellectual and sensual presence which renders space and its perception as being liquefied. Also the interrelation between the exterior and interior usage will be smooth and multidimensional, as the building’s envelopes are capable to alter their properties in response to contextual changes or movements. A redefinition of the disciplines of architecture and urban planning responds to the changes in cultural, social, political and economical milieus.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id 4664
authors Russell, Peter
year 2001
title Visualising Non-Visual Building Information
doi https://doi.org/10.52842/conf.ecaade.2001.546
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 546-551
summary Architecture can be understood as a process and as an object. In both forms, it consists of a complex of mass, monetary, energy and information flows that occur over time scales ranging from hours and days to centuries. The parts or elements making up buildings and the processes involved in producing, maintaining, using and disposing of them are highly intertwined and multi-dimensional. The field of Architecture can range from complete building stocks down to individual buildings, their elements, and the materials and processes making up these elements. What is more, it is also necessary to introduce time as a dimension in order to model the complete life cycle of buildings. Current CAD systems concentrate primarily on the replication of the traditional drawing process (sometimes in three dimensions) and the visualisation of the finished building. While these models describe the geometry and visual appearance of buildings, the bulk of the information about the building remains unseen. Recently developed systems such as the German LEGOE system have combined a materials database with specification and CAD systems, which allows for a more comprehensive description of the building. However, this additional information is displayed either rudimentarily or as lists of numbers. The information describing the position or visual quality of building elements is, in fact, minuscule in comparison to that describing the properties of the materials involved, their production methods, the energy needed to produce, transport and install the elements, and information concerning toxicology and environmental issues. What is more, these materials are not simply in situ, but can be considered to flow through the building. These flows also occur at widely varying rates according to the type of material and the type of building. The view is taken that buildings are actually temporary repositories of various “flows” which occupy the building during its lifetime. Thus seen, the various aspects of a building at a certain stage of its life are taken to be the total sum of its inputs and outputs at any given time. Currently, its complexity and the lack of cognitive assistance in its presentation limit the understanding of this information. The author postulates that to better understand this information, visual displays of this “non-visual” building information are needed, at least for those who, like architects, are more visually inclined. The paper describes attempts made to go beyond conventional two-dimensional charts, which have tended to only complicate understanding. This is partly due to the need to display a high number of dimensions in one space. Examples are shown of experimental visual displays using three-dimensional graphs created in VRML as well as a “remodelling” of the building based on statistical rather than spatial information to form a building “artefact”. The remodelled artefacts are based on a null-value three-dimensional form and are then modified according to the specific database information without changing their topology. These artefacts are initially somewhat idiosyncratic, but become more useful when a large enough population has been created. With sufficient numbers, it is possible to compare and classify the artefacts according to their visually discernible attributes. The classification of the artefacts is useful in understanding building types independent of their formal “architectural” or spatial qualities, particularly with age-use-classes. The paper also describes initial attempts to create building information landscapes that unfold from the artefacts allowing detailed views of the summarised information displayed by the individual artefacts.
keywords Building Information, Visualisation, VRML, Life Cycle Analysis
series eCAADe
email
last changed 2022/06/07 07:56

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