Cumincad : CUMINCAD Papers : Search Results

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	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	cf2011_p109
id	cf2011_p109
authors	Abdelmohsen, Sherif; Lee Jinkook, Eastman Chuck
year	2011
title	Automated Cost Analysis of Concept Design BIM Models
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 403-418.
summary	AUTOMATED COST ANALYSIS OF CONCEPT DESIGN BIM MODELS Interoperability: BIM models and cost models This paper introduces the automated cost analysis developed for the General Services Administration (GSA) and the analysis results of a case study involving a concept design courthouse BIM model. The purpose of this study is to investigate interoperability issues related to integrating design and analysis tools; specifically BIM models and cost models. Previous efforts to generate cost estimates from BIM models have focused on developing two necessary but disjoint processes: 1) extracting accurate quantity take off data from BIM models, and 2) manipulating cost analysis results to provide informative feedback. Some recent efforts involve developing detailed definitions, enhanced IFC-based formats and in-house standards for assemblies that encompass building models (e.g. US Corps of Engineers). Some commercial applications enhance the level of detail associated to BIM objects with assembly descriptions to produce lightweight BIM models that can be used by different applications for various purposes (e.g. Autodesk for design review, Navisworks for scheduling, Innovaya for visual estimating, etc.). This study suggests the integration of design and analysis tools by means of managing all building data in one shared repository accessible to multiple domains in the AEC industry (Eastman, 1999; Eastman et al., 2008; authors, 2010). Our approach aims at providing an integrated platform that incorporates a quantity take off extraction method from IFC models, a cost analysis model, and a comprehensive cost reporting scheme, using the Solibri Model Checker (SMC) development environment. Approach As part of the effort to improve the performance of federal buildings, GSA evaluates concept design alternatives based on their compliance with specific requirements, including cost analysis. Two basic challenges emerge in the process of automating cost analysis for BIM models: 1) At this early concept design stage, only minimal information is available to produce a reliable analysis, such as space names and areas, and building gross area, 2) design alternatives share a lot of programmatic requirements such as location, functional spaces and other data. It is thus crucial to integrate other factors that contribute to substantial cost differences such as perimeter, and exterior wall and roof areas. These are extracted from BIM models using IFC data and input through XML into the Parametric Cost Engineering System (PACES, 2010) software to generate cost analysis reports. PACES uses this limited dataset at a conceptual stage and RSMeans (2010) data to infer cost assemblies at different levels of detail. Functionalities Cost model import module The cost model import module has three main functionalities: generating the input dataset necessary for the cost model, performing a semantic mapping between building type specific names and name aggregation structures in PACES known as functional space areas (FSAs), and managing cost data external to the BIM model, such as location and construction duration. The module computes building data such as footprint, gross area, perimeter, external wall and roof area and building space areas. This data is generated through SMC in the form of an XML file and imported into PACES. Reporting module The reporting module uses the cost report generated by PACES to develop a comprehensive report in the form of an excel spreadsheet. This report consists of a systems-elemental estimate that shows the main systems of the building in terms of UniFormat categories, escalation, markups, overhead and conditions, a UniFormat Level III report, and a cost breakdown that provides a summary of material, equipment, labor and total costs. Building parameters are integrated in the report to provide insight on the variations among design alternatives.
keywords	building information modeling, interoperability, cost analysis, IFC
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	bbb9
authors	Blaise, Jean-Yves and Dudek, Iwona
year	1999
title	SOL: Spatial and Historical Web-Based Interface for On Line Architectural Documentation of Krakow's Rynek Gowny
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 700-707
doi	https://doi.org/10.52842/conf.ecaade.1999.700
summary	Our paper presents recent developments of a co-operation program that links the MAP-GAMSAU CNRS laboratory (Marseilles, France), specialised in computer science and the HAiKZ Institute of Krakow's Faculty of Architecture, specialised in architectural heritage and conservation. Before undertaking any action to a listed building or interventions in its neighbourhood, it is vital to gain a clear understanding of the building in question. Numerous heterogeneous data detained by diverse institutions has to be handled. This process can be greatly eased by enhanced classification of the information. The development we present is a multidisciplinary platform independent information tool dedicated to education and research. SOL uses an http protocol centred computer architecture connecting a relational database, a VRML 2.0 representation module and a web search interface. It allows searches and updating of the database through a standard text based interface, a VRML 2.0 graphical module and a thematic interface. SOL is experienced on the urban fabric of the Main Square (Rynek Gówny) in Kraków. The choice of a web-centred development, both in the search and updating interface and in the representation module provides platform independence and distant access to the database, and enables successive contributions of students or researchers.
keywords	Web Interface, Database, Architectural Heritage Environment, Information Module, Historical Evolutions
series	eCAADe
email
more	http://alberti.gamsau.archi.fr
last changed	2022/06/07 07:52

_id	ae38
authors	Jabi, Wassim
year	1999
title	Integrating Databases, Objects and the World-Wide Web for Collaboration in Architectural Design
source	Proceedings of the focus symposium: World Wide Web as Framework for Collaboration in conjunction with the 11th International Conference on Systems Research, Informatics and Cybernetics, The International Institute for Advanced Studies in Systems Research
summary	Architectural design requires specialized vertical knowledge that goes beyond the sharing of marks on paper or the multi-casting of video images. This paper briefly surveys the state-ofthe- art in groupware and outlines the need for vertical and integrated support of synchronous and asynchronous design collaboration. The paper also describes a software prototype (WebOutliner) under development that uses a three-tier persistent object-oriented, web-based technology for a richer representation of hierarchical architectural artifacts using Apple’s WebObjects technology. The prototype contributes to earlier work that defined a framework for a shared workspace consisting of Participants, Tasks, Proposals, and Artifacts. These four elements have been found through observation and analysis to be adequate representations of the essential components of collaborative architectural design. These components are also hierarchical which allows users to filter information, copy completed solutions to other parts of the program, analyze and compare design parameters and aggregate hierarchical amounts. Given its object orientation, the represented artifacts have built-in data and methods that allow them to respond to user actions and manage their own sub-artifacts. In addition, the prototype integrates this technology with Java tools for ubiquitous synchronous web-based access. The prototype uses architectural programming (defining the spatial program of a building) and early conceptual design as examples of seamlessly integrated groupware applications.
keywords	Computer Supported Collaborative Design, WebObjects, Synchronous and Asynchronous Collaboration, Java Applets, Application Server, Web-based Interface
series	other
email
last changed	2002/03/05 19:55

_id	221d
authors	Lee, Sanghyun
year	1999
title	Internet-based collaborative design evaluation : an architect's perspective
source	Harvard University
summary	This research aims at developing a design evaluation system that employs a Product Model as the logical basis for integrating building design and construction processes. The system is implemented with Java language, which allows the system to work over the Internet. Accordingly, the system helps architects to collaborate with remote participants. Thus, this design evaluation system is a building performance evaluator like DOE-2, RADIANCE, HVAC, and the Automated Building Code Checker. This research, however, is mainly concerned with an architect's view during the schematic design and design development stage, while the existing design evaluation systems cover other special consultants' views such as those of HVAC designers, structural engineers, and contractors. From an architect's view, this evaluation system checks the compliance of design objects represented by means of physical objects such as walls and windows and conceptual objects such as rooms as well, to the design criteria focused on accommodating human behavior, rather than other building performances such as sustaining building structures and maintaining indoor livability. As such, the system helps designers analyze and evaluate design solutions according to their original intent. The innovative points of this research lie in the following: (1) Unlike other inquiries, it addresses a systematic evaluation of building design from an architect's view focusing on the experiential quality of the built environment. This research demonstrates that such an evaluation becomes available by introducing human activity-based evaluation. (2) It can take a multi-agenda for several groups of different interests by providing an Aspect Model based on human activity-centered systematic translation of their design considerations and 3D model-based graphical representations into system readable ones. (3) As a result, it addresses the possibility of expanding the capability of the design evaluator from a mere code checker to a general design evaluator while simultaneously, enhancing the availability from stand alone to Internet based networking.
keywords	Architectural Rendering; Data Processing; Evaluation; Buildings; Performance; World Wide Web; Internet
series	thesis:PhD
last changed	2003/02/12 22:37

_id	25d7
authors	Tolman, F.P.
year	1999
title	Product modeling standards for the building and construction industry: past, present and future
source	Automation in Construction 8 (3) (1999) pp. 227-235
summary	For the past ten years most sectors of industry have been developing standards for the electronic sharing and exchange of product model data. While several related industries, such as automotive and shipbuilding manufacturing have been relatively successful in integrating electronic product models into their operations, the building and construction industry, continues to lag behind in this development. In order for the building and construction industry to meet the challenges of the future, the development of a product modeling standard that enables sharing, storing and exchanging project information electronically is essential. The paper discusses the rationale behind this assertion and includes a discussion of the industry requirements for the development of a product modeling standard. The paper elaborates on the results of the standardization efforts of the past and present, followed by an analysis of the current development situation. Finally, personal views are expressed regarding future development in the area of information exchange.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:23

_id	2fd9
authors	Siniacoff, Martha
year	1999
title	The Cadastral Information System and its Objectives
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 213-218
summary	The solutions that allow us to attend the potential exigencies planned for a territorial administration, oblige us to establish an informatizated step, performed with a group of logical tools, supported in the corresponding data bases. This means to establish an Information System who integrates basic data to activities and own resources, being a fundamental aspect of these Systems their capacity to synthetisize the dinamic of phenomena that reflect and several parameters that are the base to analyse this. Urban and Rural real estates (cadastral register) are elementary territorial unities whose integration, complemented with structural elements of a localization area, constitute the continuous of spatial information with the most degree of resolution. Trying as "variables” all physical, economical and juridical circunstances, this continuous of information in transformed in an extraordinary and interesting product, which can be potentiate if we include the Geographic Information System (GIS) concept, resulting of adding digital cartographic data bases to attributes and literal characteristics of elements stored in alphanumeric ones. The reason of this article is to divulge the Territorial Information System set up in the Cadastral Office of the City Hall of Montevideo, based on GIS technology, emphatizying the utility it produces in so large applications as: to investigate land occupation and property distribution, to planify and optimize resources and services, to act as a fundamental support to elaborate thematic cartographies, to serve as a detailed and precise support for urbanism, service flows and territorial ordenation and all other products issued for the own implantation philosofy, constituted with an open structure where the mentioned Office isn’t the only user.
series	SIGRADI
email
last changed	2016/03/10 10:00

_id	e336
authors	Achten, H., Roelen, W., Boekholt, J.-Th., Turksma, A. and Jessurun, J.
year	1999
title	Virtual Reality in the Design Studio: The Eindhoven Perspective
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 169-177
doi	https://doi.org/10.52842/conf.ecaade.1999.169
summary	Since 1991 Virtual Reality has been used in student projects in the Building Information Technology group. It started as an experimental tool to assess the impact of VR technology in design, using the environment of the associated Calibre Institute. The technology was further developed in Calibre to become an important presentation tool for assessing design variants and final design solutions. However, it was only sporadically used in student projects. A major shift occurred in 1997 with a number of student projects in which various computer technologies including VR were used in the whole of the design process. In 1998, the new Design Systems group started a design studio with the explicit aim to integrate VR in the whole design process. The teaching effort was combined with the research program that investigates VR as a design support environment. This has lead to increasing number of innovative student projects. The paper describes the context and history of VR in Eindhoven and presents the current set-UP of the studio. It discusses the impact of the technology on the design process and outlines pedagogical issues in the studio work.
keywords	Virtual Reality, Design Studio, Student Projects
series	eCAADe
email
last changed	2022/06/07 07:54

_id	acadia21_530
id	acadia21_530
authors	Adel, Arash; Augustynowicz, Edyta; Wehrle, Thomas
year	2021
title	Robotic Timber Construction
source	ACADIA 2021: Realignments: Toward Critical Computation [Proceedings of the 41st Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-986-08056-7]. Online and Global. 3-6 November 2021. edited by S. Parascho, J. Scott, and K. Dörfler. 530-537.
doi	https://doi.org/10.52842/conf.acadia.2021.530
summary	Several research projects (Gramazio et al. 2014; Willmann et al. 2015; Helm et al. 2017; Adel et al. 2018; Adel Ahmadian 2020) have investigated the use of automated assembly technologies (e.g., industrial robotic arms) for the fabrication of nonstandard timber structures. Building on these projects, we present a novel and transferable process for the robotic fabrication of bespoke timber subassemblies made of off-the-shelf standard timber elements. A nonstandard timber structure (Figure 2), consisting of four bespoke subassemblies: three vertical supports and a Zollinger (Allen 1999) roof structure, acts as the case study for the research and validates the feasibility of the proposed process.
series	ACADIA
type	project
email
last changed	2023/10/22 12:06

_id	875c
authors	Bonta, Pedro
year	1999
title	CAO - Centro Asistido Por Ordenador
source	ACADIA Quarterly, vol. 18, no. 1, pp. 12-12
doi	https://doi.org/10.52842/conf.acadia.1999.012
summary	The formal education of future professionals requires training in four basic skills: abstraction, systemical thought, experimentation and collaboration. The capacity of abstraction allows to understand and manage realty in different ways in order to create opportunities to reinterpret and reorganize the information. The systemical thought promotes the distinction and the interpretation, teaching how they should be interpreted and how they can be refuted. They should learn how to analyze the reality from different points of view, under different conditions, which allows imagining new alternatives and possibilities. Through the experimentation we look for different possibilities and results and verify analogies and relevant differences, comparing with previous ideas. Another relevant aspect is the capacity of collaborating, sharing troubles and solutions, building new knowledge.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	165b
authors	Brenner, C. and Haala, N.
year	1999
title	Rapid Production of Virtual Reality City Models
source	GIS - Geo-Informationssysteme 12(3), pp. 22–28
summary	The growing demand for detailed city models has stimulated research on efficient 3D data acquisition. Over the past years, it has become evident that the automatic reconstruction of urban scenes is most promising if different types of data, possibly originating from different data sources are combined. In the approach presented in this paper the geometric reconstruction of urban areas is based on height data from airborne laser scanning and 2D GIS, which provides the ground plan geometry of buildings. Both data sources are used to estimate the type and parameter of basic primitives which in turn are combined to obtain complex building structures. The final output consists of 3D CAD models for the buildings. Using the reconstructed geometry, terrestrial images are mapped onto building facades to generate virtual city models.
keywords	3D City modeling
series	other
last changed	2003/11/21 15:16

_id	7229
authors	Brenner, C. and Haala, N.
year	1999
title	Towards Virtual Maps: On the Production of 3D City Models
source	GeoInformatics 2(5), pp. 10–13
summary	The growing demand for detailed city models has stimulated research on efficient 3D data acquisition. Over the past years, it has become evident that the automatic reconstruction of urban scenes is most promising if different types of data, possibly originating from different data sources are combined. In the approach presented in this paper the geometric reconstruction of urban areas is based on height data from airborne laser scanning and 2D GIS, which provides the ground plan geometry of buildings. Both data sources are used to estimate the type and parameter of basic primitives which in turn are combined to obtain complex building structures. The final output consists of 3D CAD models for the buildings. Using the reconstructed geometry, terrestrial images are mapped onto building facades to generate virtual city models.
keywords	3D City modeling
series	journal paper
last changed	2003/11/21 15:16

_id	b4d2
authors	Caldas, Luisa G. and Norford, Leslie K.
year	1999
title	A Genetic Algorithm Tool for Design Optimization
source	Media and Design Process [ACADIA ‘99 / ISBN 1-880250-08-X] Salt Lake City 29-31 October 1999, pp. 260-271
doi	https://doi.org/10.52842/conf.acadia.1999.260
summary	Much interest has been recently devoted to generative processes in design. Advances in computational tools for design applications, coupled with techniques from the field of artificial intelligence, have lead to new possibilities in the way computers can inform and actively interact with the design process. In this paper we use the concepts of generative and goal-oriented design to propose a computer tool that can help the designer to generate and evaluate certain aspects of a solution towards an optimized behavior of the final configuration. This work focuses mostly on those aspects related to the environmental performance of the building. Genetic Algorithms are applied as a generative and search procedure to look for optimized design solutions in terms of thermal and lighting performance in a building. The Genetic Algorithm (GA) is first used to generate possible design solutions, which are then evaluated in terms of lighting and thermal behavior using a detailed thermal analysis program (DOE2.1E). The results from the simulations are subsequently used to further guide the GA search towards finding low-energy solutions to the problem under study. Solutions can be visualized using an AutoLisp routine. The specific problem addressed in this study is the placing and sizing of windows in an office building. The same method is applicable to a wide range of design problems like the choice of construction materials, design of shading elements, or sizing of lighting and mechanical systems for buildings.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	acac
authors	Chan, Chiu-Shui, and Browning, Todd R.
year	1999
title	Design Simulation
source	CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 243-252
doi	https://doi.org/10.52842/conf.caadria.1999.243
summary	This paper intends to explore methods of constructing a design simulator. Two methodologies, approached differently, imitate the human design processes. The first component is an algorithmic method which has a cognitive model embedded. This cognitive model hypothesizes that human design has certain design logic applied. The design rationales are based on knowledge stored in a designer_ memory. Each time a similar design task is encountered, the same design procedures will be repeated for completion. What makes the results different are the design information used and sequences of processing it. A kitchen design using procedural algorithms is developed to simulate this design aspect. The second component simulates an intuitive design approach. Intuition is defined as design by rules of thumb, or heuristic design. This study investigated how to simulate an intuitive design process. The method involves building up a set of inductive rules symbolizing cultural aspects that need to be addressed in a design. A residential foyer design is the simulation task. The driving force is the heuristics. Results in this study have shown that there are many variables to include but impossible to capture and simulate any of the design processes, which are the reasons why studies in this area are difficult.
series	CAADRIA
email
more	http://www.public.iastate.edu/~cschan
last changed	2022/06/07 07:56

_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	9cab
authors	Coomans, M.K.D.
year	1999
title	A Virtual Reality User Interface for a Design Information System, CCAI: the Journal for the Integrated Study of Artificial Intelligence
source	Cognitive Science and Applied Epistemology, Rijks Universiteit Gent
summary	The computer is a tool, a complex artefact that is used to extend our reach. A computer system can provide several kinds of services, but against these services stands a supplementary task that the user must deal with: the communication with the computer system. We argued that Virtual Reality (VR) can fundamentally improve the user interface by rendering on the common experiential skills of all users. We present the theoretical basis for this, referring to Donald Norman's theory. We show that VR provides at least theoretically, the means to take a big step in the direction of an ideal user interface. As an example of a innovative application of VR in user interface design, we presented the VR-DIS system; an interdisciplinary design system for the building and construction industry. We discuss the issues underlying the design of its VR interface.
series	other
last changed	2003/04/23 15:50

_id	7082
authors	Dawood, N.
year	1999
title	A proposed system for integrating design and production in the precast building industry
source	The Int. Journal of Construction IT 7(1), pp. 72-83
summary	The UK construction industry is going through a major re-appraisal, with the objective of reducing construction costs by at least 30% by the end of the millennium. Precast and off-site construction are set to play a major role in improving construction productivity, reducing costs and improving working conditions. In a survey of current practices in the prefabrication industry, it was concluded that the industry is far behind other manufacturing-based industries in terms of the utilisation of IT in production planning and scheduling and other technical and managerial operations. It is suggested that a systematic, integrated, computer-aided, approach to presenting and processing information is needed. The objective of this paper is to introduce and discuss the specifications of an integrated intelligent computer-based information system for the precast concrete industry. The system should facilitate: the integration of design and manufacturing operations; automatic generation of production schedules directly from design data and factory attributes; and generation of erection schedules from site information, factory attributes and design data. It is hypothesised that the introduction of such a system would reduce the total cost of precasting by 10% and encourage clients to choose precast components more often.
series	journal paper
last changed	2003/05/15 21:45

_id	3ddc
authors	Dijkstra, Jan and Timmermans, Harry
year	1999
title	Towards a Multi-Agent Model for Visualizing Simulated User Behavior to Support the Assessment of Design Performance
source	Media and Design Process [ACADIA ‘99 / ISBN 1-880250-08-X] Salt Lake City 29-31 October 1999, pp. 226-237
doi	https://doi.org/10.52842/conf.acadia.1999.226
summary	We introduce the outline of a multi-agent model that can be used for visualizing simulated user behavior to support the assessment of design performance. We will consider various performance indicators of building environments, which are related to user reaction to design decisions. This system may serve as a media tool in the design process for a better understanding of what the design will look like, especially for those cases where design or planning decisions will affect the behavior of individuals. The system is based on cellular automata and multi-agent simulation technology. The system simulates how agents move around in a particular 3D (or 2D) environment, in which space is represented as a lattice of cells. Agents represent objects or people with their own behavior, moving over the network. Each agent will be located in a simulated space, based on the cellular automata grid. Each iteration of the simulation is based on a parallel update of the agents conforming local rules. Agents positioned within an environment will need sensors to perceive their local neighborhood and some means with which to affect the environment. In this way, autonomous individuals and the interaction between them can be simulated by the system. As a result, designers can use the system to assess the likely consequences of their design decisions on user behavior. We think that the system provides a potentially valuable tool to support design and decision-making processes, related to user behavior in architecture and urban planning.
series	ACADIA
email
last changed	2022/06/07 07:55

_id	b0c3
authors	Flanagan, Robert
year	1999
title	Designing by Simulation
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 25-30
summary	This article evaluates ‘simulation’ as a contributing factor in architectural design. While computers enhance simulation, they have yet to transform the art of architecture. A partial explanation is found at the extremes of design processes: Gaudí’s Sagrada Família Cathedral of Barcelona is an empiricist’s culminating achievement -- faith expressed in stone. By contrast, SOM’s Sear’s Tower of Chicago is the modernist monument to rational process -- (financial) faith engineered in steel and glass. Gaudí employed an understanding of the heritage of stone and masonry to fashion his design while SOM used precise relationships of mathematics and steel. However, the designs in both the Sear’s Tower and Sagrada Família are restricted by the solutions inherent in the methods. In contrast, student designs often have no inherent approach to building. While the solution may appear to be evident, the method must often be invented; this is potentially more costly and complex than the design itself. This issue is not new to computers, but its hyper--reality is potentially more complex and disruptive. In evaluating the role of computer simulation in architectural design, this article employs two methods: 1.) Exoskeletal design: A limited collection of connected plates is formed and designed through warping, bending and forming. Reference architect Buckminster Fuller. 2.) Endoskeletal design: Curtain wall construction is taken to its minimalist extreme, using pure structure and membrane. Reference artist Christo.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	acadia06_426
id	acadia06_426
authors	Garber, R., Robertson, N.
year	2006
title	The Pleated Cape: From the Mass-Standardization of Levittown to Mass Customization Today
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 426-439
doi	https://doi.org/10.52842/conf.acadia.2006.426
summary	In the 1950’s, the Levitts put mass-production and the reverse assembly line into use in the building of thousands of single-family houses. However, the lack of variation that made their construction process so successful ultimately produced a mundane suburban landscape of sameness. While there were many attempts to differentiate these Levitt Cape Cods, none matched the ingenuity of their original construction process. The notion of mass-customization has been heavily theorized since the 1990’s, first appearing in the field of management and ultimately finding its way into the field of architecture. Greg Lynn used mass-customization in his design for the Embryological House in which thousands of unique houses could be generated using biological rules of differentiation (Lynn 1999). Other industries have embraced the premise that computer-numerically-controlled technologies allow for the production of variation, though it has not been thoroughly studied in architecture. While digital fabrication has been integral in the realization of several high-profile projects, the notion of large-scale mass-customization in the spec-housing market has yet to become a reality. Through the execution of an addition to a Cape Cod-style house, we examine the intersection between prefabricated standardized panels and digital fabrication to produce a mass-customized approach to housing design. Through illustrations and a detailed description of our design process, we will show how digital fabrication technologies allow for customization of mass produced products.
series	ACADIA
email
last changed	2022/06/07 07:50

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