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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Reformat results as: short short into frame detailed detailed into frame

_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	ecaade2008_083
id	ecaade2008_083
authors	Belcher, Daniel; Johnson, Brian R.
year	2008
title	ARchitectureView
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 561-568
doi	https://doi.org/10.52842/conf.ecaade.2008.561
summary	We present a system for viewing architectural building models – specifically Building Information Modeling (BIM) models – in 3D using an Augmented Reality Tangible User Interface (TUI) and a Magic Lens interaction metaphor. ARchitectureView is meant to facilitate communication and collaboration around a shared model. We present the system overview and a number of use scenarios in which the interface would serve to improve communication across disciplines and varied technical backgrounds, while supporting a rich and coherent common understanding.
keywords	Augmented Reality, Building Information Modeling, Magic Lens, Tangible User Interface
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2008_077
id	ecaade2008_077
authors	Graf, Robert; Yan, Wei
year	2008
title	Automatic Walkthrough Utilizing Building Information Modeling to Facilitate Architectural Visualization
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 555-560
doi	https://doi.org/10.52842/conf.ecaade.2008.555
summary	This paper presents a new system that supports automatic path planning for walkthrough in building models, using information retrieved from Building Information Modeling (BIM). It can automatically generate a path that explores all or part of the rooms in a building. During a real-time walkthrough, users will be able to follow the path while interactively controlling their viewing angles. That way, users can take guided tours while simultaneously looking around to examine the spaces. We expect the system to be useful in design review because BIM models of design can be easily brought into the system that allows reviewers to start walkthrough immediately and interactively. The significance of the work is that the system has potential applications for visualization of complex building design.
keywords	Walkthrough, Building Information Modeling, Visualization
series	eCAADe
email
last changed	2022/06/07 07:51

_id	cf2011_p035
id	cf2011_p035
authors	Langenhan, Christoph; Weber Markus, Petzold Frank, Liwicki Marcus, Dengel Andreas
year	2011
title	Sketch-based Methods for Researching Building Layouts through the Semantic Fingerprint of Architecture
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. 85-102.
summary	The paper focuses on the early stages of the design process where the architect needs assistance in finding reference projects and describes different aspects of a concept for retrieving previous design solutions with similar layout characteristics. Such references are typically used to see how others have solved a similar architectural problem or simply for inspiration. Current electronic search methods use textual information rather than graphical information. The configuration of space and the relations between rooms are hard to represent using keywords, in fact transforming these spatial configurations into verbally expressed typologies tends to result in unclear and often imprecise descriptions of architecture. Nowadays, modern IT-technologies lead to fundamental changes during the process of designing buildings. Digital representations of architecture require suitable approaches to the storage, indexing and management of information as well as adequate retrieval methods. Traditionally planning information is represented in the form of floor plans, elevations, sections and textual descriptions. State of the art digital representations include renderings, computer aided design (CAD) and semantic information like Building Information Modelling (BIM) including 2D and 3D file formats such as Industry Foundation Classes (IFC) (IAI, 2010). In the paper, we examine the development of IT-technologies in the area of case-based reasoning (Richter et al., 2007) to provide a sketch-based submission and retrieval system for publishing and researching building layouts including their manipulation and subsequent use. The user interface focuses on specifying space and their relations by drawing them. This query style supports the spatial thinking approach that architects use, who often have a visual representation in mind without being able to provide an accurate description of the spatial configuration. The semantic fingerprint proposed by (Langenhan, 2008) is a description and query language for creating an index of floor plans to store meta-data about architecture, which can be used as signature for retrieving reference projects. The functional spaces, such as living room or kitchen and the relation among on another, are used to create a fingerprint. Furthermore, we propose a visual sketch-based interface (Weber et al., 2010) based on the Touch&Write paradigm (Liwicki et al., 2010) for the submission and the retrieval phase. During the submission process the architect is sketching the space-boundaries, space relations and functional coherence's. Using state of the art document analysis techniques, the architects are supported offering an automatic detection of room boundaries and their physical relations. During the retrieval the application will interpret the sketches of the architect and find reference projects based on a similarity based search utilizing the semantic fingerprint. By recommending reference projects, architects will be able to reuse collective experience which match the current requirements. The way of performing a search using a sketch as a query is a new way of thinking and working. The retrieval of 3D models based on a sketched shape are already realized in several domains. We already propose a step further, using the semantics of a spatial configuration. Observing the design process of buildings reveals that the initial design phase serves as the foundation for the quality of the later outcome. The sketch-based approach to access valuable information using the semantic fingerprint enables the user to digitally capture knowledge about architecture, to recover and reuse it in common-sense. Furthermore, automatically analysed fingerprints can put forward both commonly used as well as best practice projects. It will be possible to rate architecture according to the fingerprint of a building.
keywords	new media, case-based reasoning, ontology, semantic building design, sketch-based, knowledge management
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	sigradi2008_078
id	sigradi2008_078
authors	Lobos, Danny; Dirk Donath
year	2008
title	Top down and bottom up – using BIM to merge these two design strategies.
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	Our current research is focused on the optimization and evaluation of the architectural building design (gestalt), related and in balance to the inner organization of a building, the floorplan layout. This paper is focused on the impact of Space Layout Planning supported by Information and Communication Technologies (ICT) applied to Architectural Design. We present an overview and wide description of the „architectural design“, the classical definition and methods; and its evolution in practice since the ICT tools impact of the last forty years. Definition such as space program, space relationships, space function are wide discussed to understand the phenomena of architectural layout design, the parameters, variables, constraints and goals of each design. Second we present the state of the art and the current techniques and approaches (optimization, generative systems, artificial intelligence, genetic algorithms, physically based modeling, etc), a classification structure is generated to visualize the areas of impact and use of each technique (different areas from architectural design). Finally we described a complete framework to research and develop our own methodologies based on a specific case of architectural design, the current CAD tools and the possible develop of new tools using the impact of BIM systems.
keywords	space layout planning, computer aided design, functional planning, architectural floor layout, design methodologies, simulation and evaluation
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	9d5f
id	9d5f
authors	Podevyn M, Horne M, Fisher P, Thompson, E
year	2008
title	Global Visualisation Engines – Issues for Urban Landscape Planning Participation Processes
source	Digital Design in Landscape Architecture 2008, Proceedings at Anhalt University of Applied Sciences, 29-31 May 2008
summary	Traditional planning processes use two-dimensional drawings, plans, sections, elevations and artists’ impressions to communicate design intent to interested parties. Three-dimensional computer visualisation technologies that support the planning process raise institutional and organisational challenges as their perceived benefits are considered. Virtual Reality (VR) models add interactivity and immersiveness to landscape visualisations but require appropriate technical input and management. This paper explores two main themes. Firstly, how interactive 3D computer simulations of planning proposals can be adopted to successfully improve the traditional process. It reports on a pilot study to examine how architects, clients, planning officers and university researchers have worked together to systematically examine and analyse this changing process. It reports on issues concerned with ownership of city models, the roles and the compatibility, accuracy and remote sharing of urban data. Secondly, we explore the emerging theme of web-based GIS applications and their impact on architectural visualisation. The process of placing urban data onto Google Earth was tested and the resulting issues emerging with this software, including IT and data management and accuracy issues for suitable architectural visualisation are discussed. The study also reports and offers an overview of placing accurate urban landscape data onto Google Earth and a discussion of using this method for online public participation and communicating technical building information.
keywords	3D modelling, planning process, VR city models, Google Earth
series	other
type	normal paper
email
last changed	2008/11/02 21:09

_id	acadia08_478
id	acadia08_478
authors	Yan, Wie
year	2008
title	Environment-Behavior Simulation: From CAD to BIM and Beyond
source	Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 478-485
doi	https://doi.org/10.52842/conf.acadia.2008.478
summary	This paper describes our research on environment-behavior simulation and focuses on the modeling of built environments using Computer-Aided Design (CAD) and Building Information Modeling (BIM). Our environment-behavior simulation addresses the problem of predicting and evaluating the impacts of built environments on their human inhabitants. We present simulation systems comprising an agent-based virtual user model and building models created with CAD and BIM tools. We compare the use of CAD vs. BIM with two case studies for environment-behavior simulation, and describe the essential parts of modeling buildings for the simulation, including geometry modeling—how the building components are shaped, semantic modeling—what the building components are, and pattern modeling—how the building components are used by users. We conclude that a new extensible and pattern-embedded BIM system will be necessary to facilitate environment-behavior simulation.
keywords	Behavior; BIM; Environment; Information; Simulation
series	ACADIA
last changed	2022/06/07 07:57

_id	sigradi2008_080
id	sigradi2008_080
authors	Andrés, Roberto
year	2008
title	Hybrid Art > Synthesized Architecture
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	This paper investigates possible intersections between some contemporary artistic modalities and architectural practice. At first, it describes and discusses different uses of art in architectural history. Through the analyzes of Le Corbusier’s artistic and architectural practices, it observes the limits of looking at art as only ‘inspiration’ for architectural form and points to the necessity of surpassing this formal approach. More than bringing pictorial ‘inspiration’, art, as a experimental field, can change our architectural procedures and approaches - a much richer and powerful addition to the development of architecture. It discusses then, the confluence of architecture, information and communication technologies. Very commonly present in our contemporary life, not only on the making of architecture – computer drawings and modeling of extravagant buildings – nor in ‘automated rooms’ of the millionaire’s houses. Televisions, telephones and computers leave the walls of our houses “with as many holes as a Swiss cheese”, as Flusser has pointed. The architecture has historically manipulated the way people interact, but this interaction now has been greatly changed by new technologies. Since is inevitable to think the contemporary world without them, it is extreme urgent that architects start dealing with this whole universe in a creative way. Important changes in architecture occur after professionals start to research and experiment with different artistic medias, not limiting their visions to painting and sculpture. The main hypothesis of this paper is that the experiments with new media art can bring the field of architecture closer to information and communication technologies. This confluence can only take form when architects rise questions about technology based interaction and automation during their creative process, embodying these concepts into the architecture repertoire. An educational experience was conducted in 2007 at UFMG Architecture School, in Brazil, with the intention of this activity was to allow students to research creatively with both information technology and architecture. The students’ goal was to create site-specific interventions on the school building, using physical and digital devices. Finally, the paper contextualizes this experience with the discussion above exposed. Concluding with an exposition of the potentialities of some contemporary art modalities (specially the hybrid ones) in qualifying architectural practices.
keywords	Architecture; Information and Communication Technologies; Digital Art; Site Specific Art; Architectural Learning.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	sigradi2008_103
id	sigradi2008_103
authors	Baltazar, Ana Paula; Maria Lucia Malard, Silke Kapp, Pedro Schultz
year	2008
title	From physical models to immersive collaborative environments: testing the best way for homeless people to visualise and negotiate spaces
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	This paper describes an experiment to investigate the best way for lay people to use representation to visualise and negotiate space. It was motivated by our observations in workshops for digital inclusion in the context of a housing project for a homeless association. Computers were used to make it easier for the community to understand and change the spaces in real time. The first workshops proved that our approach was efficient as an exercise but not certainly effective concerning the understanding of spatial qualities. So we have designed an experiment to compare the usability of different media in participatory design processes. For that we have adapted the ‘Usability’ methodology, which is fully described in the paper. We started with three main questions. The first concerned the effectiveness of different media to represent spatial quality; the second concerned the best way for novices to approach space, whether by refurbishing a pre-existing space or by starting from the scratch; and the third concerned the effectiveness of negotiation by means of discourse and by means of or action. We also had two main hypothesis: one coming from research on digital environments and stereo visualisation, indicating that the more people feel immersed in the represented environment the more they are able to correlate it with physical space; and the other coming from our own observations in the participatory design workshops, in which the collective decision-making was manipulated by those people with more advanced communication skills who use their ability in an authoritative way regardless of the relevance of what they have to say. This paper describes the whole experiment, which was an exercise of spatial negotiation in 5 versions. In the first version we provided fixed digital views of a room in plan and axonometry; for another two versions we provided a physical model of the room in 1:10 scale, with some pieces of the existing furniture in different scales. This was done to check if people were just playing with a puzzle or actually grasping the correspondence between representation and the object or the space represented. One version proposes refurbishment and the other starts from the scratch. And the last two versions repeated the same task made with the physical model, but this time using a 3D interactive digital model. People were required not only to organise the furniture in the space but also to build a full scale cardboard structure and organise the real furniture reproducing their proposed model. Their comments on the spaces they had built confronted with what they had imaged when working with the model has enabled us to compare the different models, as also the different ways of negotiating spaces. This paper describes this experiment in detail concluding that 3D digital interactive models are far more effective than physical models and 2D drawings; when negotiation happens by means of action it provides more creative results than when the discoursive practice prevails; people are more creative when they start something from scratch, though they spend more time. The results of this experiment led us to formulate a new hypothesis leading to the development of an immersive collaborative environment using stereoscopy.
keywords	Visualisation, negotiation, immersive environment, digital interfaces, homeless people
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	sigradi2008_049
id	sigradi2008_049
authors	Benamy, Turkienicz ; Beck Mateus, Mayer Rosirene
year	2008
title	Computing And Manipulation In Design - A Pedagogical Experience Using Symmetry
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	The concept of symmetry has been usually restricted to bilateral symmetry, though in an extended sense it refers to any isometric transformation that maintains a certain shape invariant. Groups of operations such as translation, rotation, reflection and combinations of these originate patterns classified by modern mathematics as point groups, friezes and wallpapers (March and Steadman, 1974). This extended notion represents a tool for the recognition and reproduction of patterns, a primal aspect of the perception, comprehension and description of everything that we see. Another aspect of this process is the perception of shapes, primary and emergent. Primary shapes are the ones explicitly represented and emergent shapes are the ones implicit in the others (Gero and Yan, 1994). Some groups of shapes known as Semantic Shapes are especially meaningful in architecture, expressing visual features so as symmetry, rhythm, movement and balance. The extended understanding of the concept of symmetry might improve the development of cognitive abilities concerning the creation, recognition and meaning of forms and shapes, aspects of visual reasoning involved in the design process. This paper discusses the development of a pedagogical experience concerned with the application of the concept of symmetry in the creative generation of forms using computational tools and manipulation. The experience has been carried out since 1995 with 3rd year architectural design students. For the exploration of compositions based on symmetry operations with computational support we followed a method developed by Celani (2003) comprising the automatic generation and update of symmetry patterns using AutoCAD. The exercises with computational support were combined with other different exercises in each semester. The first approach combined the creation of two-dimensional patterns to their application and to their modeling into three-dimensions. The second approach combined the work with computational support with work with physical models and mirrors and the analysis of the created patterns. And the third approach combined the computational tasks with work with two-dimensional physical shapes and mirrors. The student’s work was analyzed under aspects such as Discretion/ Continuity –the creation of isolated groups of shapes or continuous overlapped patterns; Generation of Meta-Shapes –the emergence of new shapes from the geometrical relation between the generative shape and the structure of the symmetrical arrangement; Modes of Representation –the visual aspects of the generative shape such as color and shading; Visual Reasoning –the derivation of 3D compositions from 2D patterns by their progressive analysis and recognition; Conscious Interaction –the simultaneous creation and analysis of symmetry compositions, whether with computational support or with physical shapes and mirrors. The combined work with computational support and with physical models and mirrors enhanced the students understanding on the extended concept of symmetry. The conscious creation and analysis of the patterns also stimulated the student’s understanding over the different semantic possibilities involved in the exploration of forms and shapes in two or three dimensions. The method allowed the development of both syntactic and semantic aspects of visual reasoning, enhancing the students’ visual repertoire. This constitutes an important strategy in the building of the cognitive abilities used in the architectural design process.
keywords	Symmetry, Cognition, Computing, Visual reasoning, Design teaching
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	6953
id	6953
authors	Derix C, Miranda P and Gamlesaeter A
year	2008
title	Design Support Systems for Sustainable Development in the Thames Gateway area of London: “Smart Solutions for Spatial Planning “(SSSP)
source	Design Computation Cognition conference 2008
summary	This presentation will describe the methods and approaches used to develop applications for Urban Planners for use in masterplanning and scenario building. It was developed using a grant from the Higher Educational Council for England, and the Department for Trade and Industry as part of the “Building Sustainable Communities“ project.
keywords	urban planning, sustainability, masterplanning, computational design
series	other
type	workshop
email
more	http://www.springer.com/computer/information+systems+and+applications/book/978-1-4020-8727-1
last changed	2012/09/17 21:20

_id	sigradi2008_012
id	sigradi2008_012
authors	Dokonal, Wolfgang
year	2008
title	What is the state of digital architectural design?
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	What is the state of digital architectural design? The ubiquity of the computer in architecture can be seen in the many computer based presentations from famous architectural practices. BIM (Building Information Modelling) is the key word and we can see implementations in very ambitious projects all over the world. Glossy magazines show the results of this kind of architecture and predict that this is the future of our profession. But when we go out into the “small world” (in Europe) and talk with architects in small firms, there is a very different reality – at least at the moment. Although they all agree that the computer is crucial for their work, it is a love/hate relationship for many them. Most still use the computer purely as a drafting device and AutoCAD is still the dominant tool. Although many of them agree with the statement that you can use the computer for design, only a minority really use the computer as a design tool in the early design stages. To find out more about the reality of the use of computers in design in “small town Europe” we have been undertaking two different kinds of research over the past 4 years. The first one is an educational experiment using first year’s students to find out about the different qualities of designing with and without the computer. The results have been presented at previous conferences and, since we are doing a last run of these experiments this year, we will update and finalise our findings in this paper. To make it comparable to previous years, we use largely the same settings using the same type of student (first year) and the same project/site. We will also be comparing the results for students designing ‘freestyle’ ie in the way that they want against the previous years controlled groups. The second strand of research we have followed is a survey amongst practitioners and some of the above statements came out of this survey. We did this survey using a web questionnaire and focused on a particular region of Europe. Although the numbers of participants for this survey were quite satisfying we are re-running the survey in a different region and country to see whether there are significant differences. The results of our research and our experience as teachers and architects leads us to the main question of how we can give recommendations on how to teach design the new generation of architects. In many aspects most of the teaching that is done in our faculties is still strictly divided into teaching design and teaching computer skills. The crucial question for architectural education are the implications of the ubiquity of the computer will have especially in the field of design. We will try to give some suggestions for these effects this could have on our teaching. In the long run, this is the only way to avoid some of the pitfalls and bring the benefits of computers in design to our small architectural firms. The paper will present a summary of the results of our research and try to propose an answer to the question: “What is the state of digital design in small town Europe?”
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	ecaade2008_064
id	ecaade2008_064
authors	Donath, Dirk; Braunes, Jörg; Fehlhaber, Daniel; Tauscher, Helga
year	2008
title	Sketch-Based Building Information Capture for Cost and Risk Assessment in the Early Stages of Planning in Existing Built Contexts
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 109-116
doi	https://doi.org/10.52842/conf.ecaade.2008.109
summary	The proportion of planning activity that concerns existing buildings is increasing steadily throughout Europe. In Germany it is estimated that already two thirds of architectural planning tasks are related to revitalisation, modernisation, conversion and reconstruction. For these types of projects in particular, clients are interested in obtaining an estimate of the building costs as early as possible. Because many details are unknown or can only be guessed, it is often difficult to make a reliable estimate. This article describes a software concept for the rapid, sketch-based capture of data on site with a view to obtaining a cost-assessment for a series of different revitalisation variants using a stochastic approach.
keywords	cost risk assessment, planning-relevant building surveying, geometric data capture, geometric representation, planning support, building information modelling, IFC
series	eCAADe
email
last changed	2022/06/07 07:55

_id	cdc2008_111
id	cdc2008_111
authors	Dounas, Theodore
year	2008
title	Algebras, Geometries and Algorithms, Or How Architecture fought the Law and the Law Won
source	First International Conference on Critical Digital: What Matters(s)? - 18-19 April 2008, Harvard University Graduate School of Design, Cambridge (USA), pp. 111-114
summary	An Architect is required to deal quite often with a restrictive piece of Building Code during his/her practice, especially in traditional and hence protected environments. The paper examines the algorithmic nature of such a Building Code and in particular the President's Decree governing the design and architecture of traditional housing in the Old Town, “Ano Poli”, in Thessaloniki Greece. The nature of the constraints and descriptions the Decree contains is algorithmic, which means that the descriptions of the constraints is procedural with a specific start and a specific finish for a house design. The problem with such descriptions in a Law is that, although an architect can develop his/her own interpretations of the traditional language of the area, or even be able to trace his/her designs using shape grammars derived from traditional buildings preserved until today, the final result cannot be approved for a building permit since it does not comply with the Presidential Decree. We suggest that the nature of such legislation should be algebraic in nature and not algorithmic, since algebras allow an amount of freedom in development of architectural language while also permitting the restriction of scale, height and so on. This coupling of architectural design freedom and effective restriction on metrics of new buildings contained in algebraic systems can be shown to be much more effective than the established algorithmic system. The Decree's content comprises of regulations concerning the volume, form and use of new buildings in the protected and conserved built environment of “Ano Poli” in Thessaloniki.
last changed	2009/01/07 08:05

_id	ijac20076306
id	ijac20076306
authors	Dujovne, David Butelmann; Montoya, Claudio Labarca
year	2008
title	Digital design and manufacture based on Chiloean boats
source	International Journal of Architectural Computing vol. 6 - no. 3, pp. 317-333
summary	This paper proposes a design methodology for the manufacture of complex, double-curved surfaces based on the digital reconstruction of traditional structural and constructive elements of Chiloean boats. It also suggests a beneficial association between digital design and CAD CAM for manufacture using locally crafted construction techniques. The incorporation of innovated contemporary digital design and fabrication tools into traditional construction systems, aims to optimize and perpetuate traditional artisanal craft construction of complex shapes developed in the south of Chile. The importance of this research in budget-restricted economies, lies in the possibility of applying local construction and assembly techniques to new sophisticated designs that may satisfy the country's architectural needs. Scale models are used to record the design process and constructive development while information flow charts document the design methodology for the construction of complex geometries.
series	journal
last changed	2008/10/14 14:00

_id	sigradi2008_089
id	sigradi2008_089
authors	Godoi,Giovana; Gabriela Celani
year	2008
title	A study about facades from historical brazilian town using shape grammar
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	Shape grammars have been used in architecture for analysis and synthesis - in the first case, mainly for the characterization of styles and in the later for the generation of novel compositions. The present research proposes the use of shape grammars for establishing guidelines for the requalification of historical areas that have lost their original characteristics due to improper renovations. The use of shape grammars proposed here starts with the definition of a set of rules for characterizing the original style of an area. Based on these rules, the main characteristics of the area are confirmed, such as siting, proportions between walls and openings in the façades, overall dimensions constraints, and so on. Next, the rules of the grammar are transformed, to allow the use of contemporary building materials, as well as the incorporation of contemporary living styles in the new design. Rules must take into account two cases: original buildings that have been inadequately transformed, and buildings that have been completely torn down and will replace been completely replaced by new constructions. Both cases need to be harmonious with the remaining original buildings, however without simply copying the existing style. In both cases, rules have been used to establish the guidelines for the renovations, which resulted in modern urban environments that resemble the original historical sites in terms of spatial relations and proportions. They also create an appropriate environment for the observations of the preserved original buildings, which would otherwise look like aliens in a completely transformed neighborhood. The latter case is very common in most Brazilian cities, especially in the case of São Paulo, where houses from the late 1800´s and early 1900´s are flanked by high rise apartment buildings. In order to develop and test the proposed method, a study will be carried out in a small Brazilian town called Monte Alegre do Sul. The town was chosen because its original urban morphology, developed in the XIXth century, is still relatively well preserved, although part of the original façades have been transformed. The objective of the research is to develop a shape grammar to set guidelines for the re-adaptation of the already renovated façades and reconstruction of other ones in Monte Alegre do Sul.
keywords	Shape grammar, generative design systems
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	cdc2008_099
id	cdc2008_099
authors	Harrison, David and Michael Donn
year	2008
title	Using Project Information Clouds to Preserve Design Stories within the Digital Architecture Workplace
source	First International Conference on Critical Digital: What Matters(s)? - 18-19 April 2008, Harvard University Graduate School of Design, Cambridge (USA), pp. 99-104
summary	During the development of an architectural design a series of design stories form. These stories chronicle the collective decision making process of the diverse project team. Current digital design processes often fail to record these design stories because of the emphasis placed on the concise and accurate generation of the virtual model. This focus on an allencompassing digital model is detrimental to design stories because it limits participation, consolidates information flow and risks editorialisation of design discussion. Project Information Clouds are proposed as a digital space for design team participants to link, categorise and repurpose existing digital information into comprehensible design stories in support of the digital building model. Instead of a discrete tool, the Project Information Cloud is a set of principles derived from a proven distributed information network, the World Wide Web. The seven guiding principles of the Project Information Cloud are simplicity, modular design, decentralisation, ubiquity, information awareness, evolutionary semantics and context sensitivity. These principles when applied to the development of existing and new digital design tools are intended to improve information exchange and participation within the distributed project team.
email
last changed	2009/01/07 08:05

_id	ecaade2015_265
id	ecaade2015_265
authors	Hosey, Shannon; Beorkrem, Christopher, Damiano, Ashley, Lopez, Rafael and McCall, Marlena
year	2015
title	Digital Design for Disassembly
source	Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 2, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 371-382
doi	https://doi.org/10.52842/conf.ecaade.2015.2.371
wos	WOS:000372316000043
summary	The construction and building sector is now widely known to be one of the biggest energy consumers, carbon emitters, and creators of waste. Some architectural agendas for sustainability focus on energy efficiency of buildings that minimize their energy intake during their lifetime - through the use of more efficient mechanical systems or more insulative wall systems. One issue with these sustainability models is that they often ignore the hierarchy of energy within architectural design. The focus on the efficiency is but one aspect or system of the building assembly, when compared to the effectiveness of the whole, which often leads to ad-hoc ecology and results in the all too familiar “law of unintended consequences” (Merton, 1936). As soon as adhesive is used to connect two materials, a piece of trash is created. If designers treat material as energy, and want to use energy responsibly, they can prolong the lifetime of building material by designing for disassembly. By changing the nature of the physical relationship between materials, buildings can be reconfigured and repurposed all the while keeping materials out of a landfill. The use of smart joinery to create building assemblies which can be disassembled, has a milieu of new possibilities created through the use of digital manufacturing equipment. These tools afford designers and manufacturers the ability to create individual joints of a variety of types, which perform as well or better than conventional systems. The concept of design for disassembly is a recognizable goal of industrial design and manufacturing, but for Architecture it remains a novel approach. A classic example is Kieran Timberlake's Loblolly House, which employed material assemblies “that are detailed for on-site assembly as well as future disassembly and redeployment” (Flat, Inc, 2008). The use of nearly ubiquitous digital manufacturing tools helps designers create highly functional, precise and effective methods of connection which afford a building to be taken apart and reused or reassembled into alternative configurations or for alternative uses. This paper will survey alternative energy strategies made available through joinery using digital manufacturing and design methods, and will evaluate these strategies in their ability to create diassemblable materials which therefore use less energy - or minimize the entropy of energy over the life-cycle of the material.
series	eCAADe
email
more	https://mh-engage.ltcc.tuwien.ac.at/engage/ui/watch.html?id=4075520a-6fe7-11e5-bcc8-f7d564ea25ed
last changed	2022/06/07 07:50

_id	ecaade2008_158
id	ecaade2008_158
authors	Kaga, Atsuko; Sugawara, Shihomi
year	2008
title	Research on the Visualization for Analyzing City Changes
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 939-944
doi	https://doi.org/10.52842/conf.ecaade.2008.939
summary	To perceive such changes of city space visually, a three-dimensional (3D) city space model is effective. The use of buildings in a city space is complex, reflecting the number of stories, and the number of stories in many cases. Furthermore, environmental parameters, such as opening a shop developed for conditions of the location, the existence of a building which is easy to divert to some other purpose, a managerial layer, and the whole country, is closely related to city change. A city change can be analyzed from various perspectives if such information can also be accumulated and displayed. If it is expressed in two dimensions, it will be restricted, but if expressed in 3D, the use situation of city space can be grasped quickly. Commercial 3D GIS software is useful for visualizing such a 3D city space model while referring to attribute information. However, such software is expensive and its use is restricted. For this study, highly extensible 3D modeling software is used to develop a technique for visualizing city spaces using its attribute information. Then the developed script is applied to an actual city model in Japan.
keywords	City Analysis, Urban design, 3D-model, City Visualization
series	eCAADe
email
last changed	2022/06/07 07:52

_id	sigradi2008_175
id	sigradi2008_175
authors	Knight, Terry; Larry Sass, Kenfield Griffith, Ayodh Vasant Kamath
year	2008
title	Visual-Physical Grammars
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	This paper introduces new visual-physical design grammars for the design and manufacture of building assembly systems that provide visually rich, culturally resonant design variations for housing. The building systems are intended to be tailored for particular cultures and communities by incorporating vernacular, decorative design into the assembly design. Two complementary areas of computational design research are brought together in this work: shape grammars and digital fabrication. The visual or graphic aspects of the research are explored through shape grammars. The physical design and manufacturing aspects are explored through advanced digital design and fabrication technologies and, in particular, build on recent work on mono-material assemblies with interlocking components that can be fabricated with CNC machines and assembled easily by hand on-site (Sass, 2007). This paper describes the initial, proof-of-concept stage of this work: the development of an automated, visual-physical grammar for an assembly system based on a vernacular language of Greek meander designs. A shape grammar for the two-dimensional Greek meander language (Knight, 1986) was translated into a three-dimensional assembly system. The components of the system are uniquely designed, concrete “meander bricks” (Figure 1). The components have integrated alignment features so that they can be easily fitted and locked together manually without binding materials. Components interlock horizontally to form courses, and courses interlock vertically in different ways to produce a visual variety of meander walls. The assembly components were prototyped at desktop scale with a layered manufacturing machine to test their appearance after assembly and their potential for design variations (Figure 2). Components were then evaluated as full-scale concrete objects for satisfaction of physical constraints related to concrete forming and component strength. The automated grammar (computer program) for this system generates assembly design variations with complete CAD/CAM data for fabrication of components formed from layered, CNC cut molds. Using the grammar, a full-scale mockup of a corner wall section was constructed to assess the structural, material, and aesthetic feasibility of the system, as well as ease of assembly. The results of this study demonstrate clearly the potentials for embedding visual properties in structural systems. They provide the foundations for further work on assembly systems for complete houses and other small-scale structures, and grammars to generate them. In the long-term, this research will lead to new solutions for economical, easily manufactured housing which is especially critical in developing countries and for post-disaster environments. These new housing solutions will not only provide shelter but will also support important cultural values through the integration of familiar visual design features. The use of inexpensive, portable digital design and fabrication technologies will allow local communities to be active, cooperative participants in the design and construction of their homes. Beyond the specific context of housing, visual-physical grammars have the potential to positively impact design and manufacture of designed artifacts at many scales, and in many domains, particularly for artifacts where visual aesthetics need to be considered jointly with physical or material requirements and design customization or variation is important.
keywords	Shape grammar, digital fabrication, building assembly, mass customization, housing
series	SIGRADI
email
last changed	2016/03/10 09:54

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