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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	2004_489
id	2004_489
authors	Bille, Pia
year	2004
title	CityScape - Analysing Modern Urbanism
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 489-494
doi	https://doi.org/10.52842/conf.ecaade.2004.489
summary	Understanding scale is a major concern and a condition of working in the field of architecture and urban design. The project described in this case origins from Blauwe Koffer, a method developed in the 80’s by the Dutch architects Dolf Dobbelaar and Paul de Vroom. The method is devoted to analysis of form and function of important architectural and urban design projects in the last century and is a flexible model for searching architectural solutions at an early stage of a project. In the paper I will describe how a group of faculty transformed the Blauwe Koffer into a digital method serving as an introduction to urban design in the second year curriculum. The project introduced topics of modern urbanism defined as cityscapes. Through a series of mapping analysis the students studied variations of scale, extension, volume, density, borders, overlaps, bricollage, diversity etc. The students were required to do analysis in the form of a matrix of 6 x 7 cells. Categories in the analysis were three scales of figure / ground studies, bricollage and studies of the urban raster. DataTown was a particular category inspired by MVRDV. The project data derived from digital maps, and project presentations in books and magazines. At second year the students are assigned to do digital projects as a part of the curriculum and the students are required to have their own computer. The project was the first digital assignment in studio and previous computer courses and skills were limited to a one-week course in desktop publishing. The CityScape project was a successful experience in integrating computation in studio, in group work and in analysis of modern urbanism. The paper will show some of the projects and discuss the assignment as a part of the implementation of an IT-strategy.
keywords	CAAD-Curriculum; Urban Morphology; Mapping; Education and Practise
series	eCAADe
email
last changed	2022/06/07 07:54

_id	cf2011_p157
id	cf2011_p157
authors	Boton, Conrad; Kubicki Sylvain, Halin Gilles
year	2011
title	Understanding Pre-Construction Simulation Activities to Adapt Visualization in 4D CAD Collaborative Tools
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. 477-492.
summary	Increasing productivity and efficiency is an important issue in the AEC field. This area is mainly characterized by fragmentation, heterogeneous teams with low lifetimes and many uncertainties. 4D CAD is one of the greatest innovations in recent years. It consists in linking a 3D model of the building with the works planning in order to simulate the construction evolution over time. 4D CAD can fill several needs from design to project management through constructivity analysis and tasks planning (Tommelein 2003). The literature shows that several applications have been proposed to improve the 4D CAD use (Chau et al. 2004; Lu et al. 2007; Seok & al. 2009). In addition, studies have shown the real impact of 4D CAD use in construction projects (Staub-French & Khanzode 2007; Dawood & Sika 2007). More recently, Mahalingam et al. (2010) showed that the collaborative use of 4D CAD is particularly useful during the pre-construction phase for comparing the constructability of working methods, for visually identifying conflicts and clashes (overlaps), and as visual tool for practitioners to discuss and to plan project progress. So the advantage of the 4D CAD collaborative use is demonstrated. Moreover, several studies have been conducted both in the scientific community and in the industrial world to improve it (Zhou et al. 2009; Kang et al. 2007). But an important need that remains in collaborative 4D CAD use in construction projects is about the adaptation of visualization to the users business needs. Indeed, construction projects have very specific characteristics (fragmentation, variable team, different roles from one project to another). Moreover, in the AEC field several visualization techniques can represent the same concept and actors choose one or another of these techniques according to their specific needs related to the task they have to perform. For example, the tasks planning may be represented by a Gantt chart or by a PERT network and the building elements can be depicted with a 3D model or a 2D plan. The classical view (3D + Gantt) proposed to all practitioners in the available 4D tools seems therefore not suiting the needs of all. So, our research is based on the hypothesis that adapting the visualization to individual business needs could significantly improve the collaboration. This work relies on previous ones and aim to develop a method 1) to choose the best suited views for performed tasks and 2) to compose adapted multiple views for each actor, that we call ‚Äúbusiness views‚Äù. We propose a 4 steps-method to compose business views. The first step identifies the users‚Äô business needs, defining the individual practices performed by each actor, identifying his business tasks and his information needs. The second step identifies the visualization needs related to the identified business needs. For this purpose, the user‚Äôs interactions and visualization tasks are described. This enables choosing the most appropriate visualization techniques for each need (step 3). At this step, it is important to describe the visualization techniques and to be able to compare them. Therefore, we proposed a business view metamodel. The final step (step 4) selects the adapted views, defines the coordination mechanisms and the interaction principles in order to compose coordinated visualizations. A final step consists in a validation work to ensure that the composed views really match to the described business needs. This paper presents the latest version of the method and especially presents our latest works about its first and second steps. These include making more generic the business tasks description in order to be applicable within most of construction projects and enabling to make correspondence with visualization tasks.
keywords	Pre-construction, Simulation, 4D CAD, Collaboration, Computer Supported Cooperative Work, Human-Computer Interface, Information visualization, Business view, Model driven engineering
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	sigradi2008_166
id	sigradi2008_166
authors	Papanikolaou, Dimitris
year	2008
title	Digital Fabrication Production System Theory: Towards an Integrated Environment for Design and Production of Assemblies
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	A Digital Fabrication Production System (DFPS) is a concept describing a set of processes, tools, and resources that will be able to produce an artifact according to a design, fast, cheap, and easy, independently of location. A DFPS project is a complex assembly of custom parts that is delivered by a network of fabrication and assembly processes. This network is called the value chain. The workflow concept of a DFPS is the following: begin design process with a custom geometric form; decompose it into constructible parts; send the part files for fabrication to various locations; transport all parts at the construction site at the right time; finally, assemble the final artifact. Conceptually it means that based on a well structured value chain we could build anything we want, at anyplace, at controllable cost and quality. The goals of a DFPS are the following: custom shapes, controllable lead time, controllable quality, controllable cost, easiness of fabrication, and easiness of assembly. Simply stated this means to build any form, anywhere, accurately, cheap, fast, and easy. Unfortunately, the reality with current Digital Fabrication (DF) projects is rather disappointing: They take more time than what was planned, they get more expensive than what was expected, they involve great risk and uncertainty, and finally they are too complex to plan, understand, and manage. Moreover, most of these problems are discovered during production when it is already late for correction. However, there is currently no systematic approach to evaluate difficulty of production of DF projects in Architecture. Most of current risk assessment methods are based on experience gathered from previous similar cases. But it is the premise of mass customization that projects can be radically different. Assembly incompatibilities are currently addressed by building physical mockups. But physical mockups cause a significant loss in both time and cost. All these problems suggest that an introduction of a DFPS for mass customization in architecture needs first an integrated theory of assembly and management control. Evaluating feasibility of a DF project has two main problems: first, how to evaluate assemblability of the design; second, how to evaluate performance of the value chain. Assemblability is a system’s structure problem, while performance is a system’s dynamics problem. Structure of systems has been studied in the field of Systems Engineering by Network Analysis methods such as the Design Structure Matrix (DSM) (Steward 1981), and the liaison graph (Whitney 2004), while dynamics of systems have been studied by System Dynamics (Forrester 1961). Can we define a formal method to evaluate the difficulty of production of an artifact if we know the artifact’s design and the production system’s structure? This paper formulates Attribute Process Methodology (APM); a method for assessing feasibility of a DFPS project that combines Network Analysis to evaluate assemblability of the design with System Dynamics to evaluate performance of the value chain.
keywords	Digital Fabrication, Production System, System Dynamics, Network Analysis, Assembly
series	SIGRADI
email
last changed	2016/03/10 09:57

_id	ddss2004_ra-325
id	ddss2004_ra-325
authors	Rodrigues, D.S., L.C.L. Souza, and J.F.G. Mendes
year	2004
title	Enhancing 3DSkyView Extension Performance
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Recent Advances in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Kluwer Academic Publishers, ISBN: 1-4020-24088, p. 325-340
summary	This paper presents a second version of the 3DSkyView extension. The purpose of that extension was to implement a calculation algorithm for assessment and visualization of sky view factors (SVF) by means of tools available in a Geographical Information System (GIS). The sky view factor is a thermal and geometric parameter pointed out in the specialized literature as one of the main causes of urban heat islands. A 3D-GIS is a powerful tool for reaching the goal of this research because it allows the storage, treatment and analysis of tri-dimensional urban data, in addition to a high level of flexibility for incorporating calculation algorithms. The objective in the 3DSkyView extension is to optimize the determination of that factor, not only reducing its demanding calculation and graphical representation time, but also generating a simplified tool for replacing expensive photographic equipment usually applied on this matter. Enhancing functions of ArcView GIS 3.2, the first version of that extension showed a very good performance allowing the automatic delineation and determination of SVF. That performance was although limited to a single observer point. The simulation of SVF for several view points in urban canyons was only possible by applying the extension as many times as the number of observers considered. Therefore, this second version was now developed in order to allow simultaneous determination of SVF for many view points. In addition, the 3DSkyView new interface is more flexible, in a way that the user may choose the kind of output wanted (graphical and/or tabular). With this new feature it is then easier to create a continuous SVF map for an entire area.
keywords	Sky View Factor, Urban Geometry, GIS Extension, Urban Heat Island
series	DDSS
last changed	2004/07/03 22:13

_id	2004_630
id	2004_630
authors	Naai-Jung Shih, Chen-Yan Lin, and Chai-Yuan Liau
year	2004
title	A 3D Information System for the Digital Preservation of Historical Architecture
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 630-637
doi	https://doi.org/10.52842/conf.ecaade.2004.630
summary	The purpose of this study is to build 3D models for the digital preservation of Chinese architecture. A historical architecture, the main hall of the Pao-An Temple, was scanned with a long-range 3D laser scanner. This temple is 19.68 meters wide, 18.2 meters wide, and 15.7 meters high. In total, the exterior and interior were registered into 1958 scans in order to cover the main hall. Scanned point clouds were converted into 3D computer models, sections, and boundary projections. Digital models were used as references for chronological records and comparison. Scanned components included the roof ridge, wood structure, dragon column, and a hanging flower. This research, which was sponsored by the National Science Council, created a two-way construction process, integrated geometric and image data, and established a digital reservation work process. Web pages were made to display 3D color components by using a plug-in to enable browsing of large files.
keywords	3D Laser Scanner; Historical Preservation
series	eCAADe
email
last changed	2022/06/07 07:59

_id	eaea2003_10-schmidt
id	eaea2003_10-schmidt
authors	Schmidt, J.A.
year	2004
title	Integrated Planning and Decision-making Processes with 3D-environmental Simulation – The Ruhrallee Tunnel Road
source	Spatial Simulation and Evaluation - New Tools in Architectural and Urban Design [Proceedings of the 6th European Architectural Endoscopy Association Conference / ISBN 80-227-2088-7], pp. 36-42
summary	The Ruhrallee is a historical arterial road connecting the wealthy south of the city of Essen with the region south of the city. The old sycamore alley gives the low-density residential neighborhood its spatial qualities and its own identity. But the spatial and social potentials are not legible and livable due to the heavy traffic on the existing road cutting the neighborhood. The street cannot assume its spatial function. Therefore the City of Essen and the Federal Government want to build a tunnel road under the existing street, in order to improve the situation for the neighborhood. The Institute for Urban Design and Planning in cooperation with the Institute for Traffic Planning at the University of Duisburg-Essen carried through an evaluation of various scenarios in terms of traffic flow and visual intrusion of the planned tunnel road as well as the refurbished old street space. The main focus of the study is the integration of the tunnel entrance and the proposed road alignment into the existing urban fabric. The 3D-environmental simulation plays a key role in the analyses, the planning and design process, but also in the decision making process. The paper examines the results of the analyses and the various design schemes. It shows that analogue simulation is still an important tool for urban design and other related planning disciplines. But the paper also points out that 3D-environmental simulation can help to make urban design topics more comprehensible for other non planning disciplines.
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2005/09/09 10:43

_id	2004_159
id	2004_159
authors	Seichter, Hartmut and Kvan, Thomas
year	2004
title	Tangible Interfaces in Design Computing
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 159-166
doi	https://doi.org/10.52842/conf.ecaade.2004.159
summary	Sensorial richness is essential in the design process, yet digital design tools do not respond to this need. Tangible interfaces offer an opportunity for interaction with design computing systems to explore means of supporting a wider range of experiences. In this paper we look at implementations of tangible interfaces through a framework based on the concept of affordance. We conclude with a brief introduction to experimental tangible interfaces that have been developed in order to carry out collaborative user evaluations in a design studio setting and evaluate these in the same framework.
keywords	Augmented Reality; Tangible Interfaces; HCI; Design Computing
series	eCAADe
last changed	2022/06/07 07:59

_id	avocaad_2003_05
id	avocaad_2003_05
authors	Alexander Koutamanis
year	2003
title	Autonomous mechanisms in architectural design systems
source	LOCAL VALUES in a NETWORKED DESIGN WORLD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Stellingwerff, Martijn and Verbeke, Johan (Eds.), (2004) DUP Science - Delft University Press, ISBN 90-407-2507-1.
summary	The development of architectural design systems that describe fully the form, structure and behaviour of a design relies heavily on the incorporation of intelligence in the representations, analyses, transformations and transactions used by the computer. Traditionally such intelligence takes either of two forms. The first is a methodical framework that guides actions supported by the design system (usually in a top-down fashion). The second is local, intelligence mechanisms that resolve discrete, relatively well-defined subproblems (often with limited if any user intervention). Local intelligent mechanisms offer the means for adaptability and transformability in architectural design systems, including the localization of global tendencies. This refers both to the digital design technologies and to the historical, cultural and contextual modifications of design styles and approaches.
keywords	Architecture, Local values, Globalisation, Computer Aided Architectural Design
series	AVOCAAD
email
last changed	2006/01/16 21:38

_id	sigradi2004_120
id	sigradi2004_120
authors	Alfonso Corona Martínez; Libertad Vigo; Cristián Buacar; Sebastián Rubbo
year	2004
title	En el taller de proyecto, dónde está la arquitectura? [In the Design Studio, Where is the Architecture? ]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This study is placed on the research line of Pedagogical practice and formation of the educator, which theme is related to learning in virtual worlds. The article presents and discusses some aspects of the process of approaching subjects (teachers) to a Virtual World, at a first moment, in a level of exploration, experimentation, interaction as a user, and, at a second moment as a creator, an author of a Virtual World, AWSINOS. The present study takes part of a exploratory/experimental research of qualitative nature that looks for the creation of virtual worlds for the continued qualification online and focuses on the investigation of socio-cognitive behaviors of subjects during their organization as a group and during the activity of building and using these worlds.
keywords	Virtual worlds, learning, continued qualification, avatars
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ascaad2006_paper29
id	ascaad2006_paper29
authors	Bennadji, A. and A. Bellakha
year	2006
title	Evaluation of a Higher Education Self-learning Interface
source	Computing in Architecture / Re-Thinking the Discourse: The Second International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2006), 25-27 April 2006, Sharjah, United Arab Emirates
summary	This paper is a follow-up to a previous paper published in ASCAAD 2004 (A. Bennadji et al 2005). The latter reported on CASD (Computer Aided Sustainable Design) a self-learning educational interface which assists the various building’s actors in their design with a particular attention to the aspect of energy saving. This paper focuses on the importance of software evaluation and how the testing is done to achieve a better human-machine interaction. The paper will go through the summative evaluation of CASD, presents the output of this evaluation and addresses the challenge facing software developers: how to make an interface accessible to all users and specifically students in higher education.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	ddss2004_d-193
id	ddss2004_d-193
authors	Burkhard, R.
year	2004
title	Visual Knowledge Transfer between Planners and Business Decision Makers
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Developments in Design & Decision Support Systems in Architecture and Urban Planning, Eindhoven: Eindhoven University of Technology, ISBN 90-6814-155-4, p. 193-208
summary	The transfer of knowledge between planners and business decision makers can be improved when planners combine traditional visualizations with business knowledge visualizations. Today architects and urban planners use visualization methods such as sketches, diagrams, drawings, renderings, models and animations to illustrate their projects. While spending an enormous amount of time to illustrate a project, almost no time is used to illustrate business relevant information that decision makers need (i.e., revenue models, risks, return on investments, project phases). Consequences are information overload, misinterpretation or even misuse of information. Juxtaposing the visualizations that planners and decision makers use reveals a major gap: Both groups use different visualization types and are not familiar with the visualization types of each other. This paper stresses the importance to expand the visualization types of planners with business knowledge visualizations. First, it discusses the functioning of visual representations for the transfer of knowledge. Second, it introduces a general knowledge visualization framework. Third, it illustrates examples from an innovative office that improved knowledge transfer with decision makers in urban planning projects. We found that combining traditional visualizations with business knowledge visualizations reduces the information overload, prevents misinterpretation, increases the information quality, improves communication and as a consequence improves decision making. We found that decision makers pay extra for these visualization types, which therefore is a new source of income for planners. The results have implications for the education of future architects.
keywords	Decision Making, Knowledge Transfer, Visualization Types, Interfunctional Communication, Business Knowledge Visualization, Information Visualization
series	DDSS
last changed	2004/07/03 22:13

_id	506b
id	506b
authors	Christenson, Mike
year	2009
title	Testing the relevance of parameterization to architectural epistemology
source	Architectural Science Review, Volume 52.2: 135-141
summary	Advances in building information modeling (BIM) deeply impact the production of new architecture; its benefits are obvious and its acceptance widespread. But how does BIM impact the study of existing architecture? Can BIM be assumed to operate as a neutral framework, equally applicable to the study of architecture anywhere? Using as a point of departure a recent outline of the conceptual structure of parametric modeling prepared by Sacks, Eastman, and Lee (2004), this paper compares parametric models of two existing works of architecture: Mies van der Rohe’s Crown Hall and Peter Zumthor’s St. Benedict Chapel. The processes of parametrically modeling each building are specifically compared in two ways: first, parameters are established for each model; second, each model is "flexed" as a means of disclosing possible semantic relationships within each work of architecture. Because each building demands a different parameter-establishment strategy, and because the models permit different degrees of flexibility, the comparison illustrates the shortcomings of a "neutral framework" assumption to an architectural epistemology.
keywords	Existing architecture, Parametric modeling, Representation
series	journal paper
type	normal paper
email
more	http://www.earthscanjournals.com/asre/052/asre0520135.htm
last changed	2009/06/18 14:24

_id	112caadria2004
id	112caadria2004
authors	Chun Yu Hsieh
year	2004
title	The Emergence of Creativity in Digital Development of Architecture
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 173-188
doi	https://doi.org/10.52842/conf.caadria.2004.173
summary	Research into the various forms and processes of creativity has been a topic of great interest in the design field for many years. However, most studies avoid questioning whether digital architecture is inherently creative in a larger social context. This study proposes to use the interacting creativity model of Csiksentmihalyi as the basic structure, to establish the major criteria of testing creativity in the digital era. There are two objectives: first, whether digital architecture can pass the test in society and culture to become an architecture that embodies creativity; second, to find out the role of digital media in Csiksentmihalyi’s interacting creativity model.
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	sigradi2004_404
id	sigradi2004_404
authors	Eduardo Lyon
year	2004
title	Artificial intelligence and emergence in architecture: A multi-agent based model for design processes
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	The purpose of this paper is to provide an alternative approach to traditional design process formulation and elaboration. In contrast to traditional models of design process fundamentally defined by the abstract manipulation of objects, this study recognizes that the resources available for rethinking architecture are to be found in a reformulation of its theory and practice. This reformulation should be based on non-linear design processes in which dynamic emergence and invention take the place of a linear design process fixed on a particular object evolution. Design is possible to be defined in two different and commonly confused ways; one as the process of designing or design activity and the second as the product of designing. In this study, we are concerned with design as a process to emphasize the misconceptions, derived from studying design products solely. Therefore, we propose a change from a design knowledge based on objects to a one focused on design as a network of processes.
series	SIGRADI
email
last changed	2016/03/10 09:51

_id	sigradi2004_110
id	sigradi2004_110
authors	Eliane Schlemmer; Luciana Backes; Aline Andrioli; Carine Barcellos Duarte
year	2004
title	Awsinos: Construção de um mundo virtual [Awsinos: Construction of a Virtual World]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	The course Alternatives of Design is part of an integral viewpoint that aims to prepare architects from the Master Studies Department in Computing in Architecture (LUZ), in two ways: first, by expanding their perspective about potentialities of using new digital technologies in architecture, and second, by qualifying them to apply this acquired theoretical knowledge in their professional environment. The objectives of this paper are to describe the program of this course and to show products (2003), from the introductory to the final presentation of Virtual Museums of Interactive Sculptures, orientated and supervised both at site and at a distance through the Internet. As a result of this experience, a sample was obtained of virtual museums. design and modelling that illustrates what could be understood as virtual architecture with high degree of interaction, looking for the evolution, motivation and teamwork to incorporate virtual reality non-inmersive technologies in this new architectonic approach.
keywords	VRML, virtual museums, interactive sculptures, alternatives of design
series	SIGRADI
email
last changed	2016/03/10 09:51

_id	sigradi2004_227
id	sigradi2004_227
authors	Enrica Colabella
year	2004
title	Generative identity codes
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This paper tries to investigate around the concept of code, as identity of a theme, and of variations, as results of generative processes. The hypothesis is that infinite rises as a borderline between a visionary world and an interpreted timeline reality, as a strongly connected dualism. As in Nature the first runs from a dynamic centre, in endless variations until the border, the second moves unsteadily toward a static centre, delineating open systems of transforming rules, using diachronic matrixes. This is a creative route in the site of the Myth of Sisyphus.
keywords	Identity, code, attributes, abduction, infinite, visionary
series	SIGRADI
email
last changed	2016/03/10 09:51

_id	sigradi2006_e028c
id	sigradi2006_e028c
authors	Griffith, Kenfield; Sass, Larry and Michaud, Dennis
year	2006
title	A strategy for complex-curved building design:Design structure with Bi-lateral contouring as integrally connected ribs
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 465-469
summary	Shapes in designs created by architects such as Gehry Partners (Shelden, 2002), Foster and Partners, and Kohn Peterson and Fox rely on computational processes for rationalizing complex geometry for building construction. Rationalization is the reduction of a complete geometric shape into discrete components. Unfortunately, for many architects the rationalization is limited reducing solid models to surfaces or data on spread sheets for contractors to follow. Rationalized models produced by the firms listed above do not offer strategies for construction or digital fabrication. For the physical production of CAD description an alternative to the rationalized description is needed. This paper examines the coupling of digital rationalization and digital fabrication with physical mockups (Rich, 1989). Our aim is to explore complex relationships found in early and mid stage design phases when digital fabrication is used to produce design outcomes. Results of our investigation will aid architects and engineers in addressing the complications found in the translation of design models embedded with precision to constructible geometries. We present an algorithmically based approach to design rationalization that supports physical production as well as surface production of desktop models. Our approach is an alternative to conventional rapid prototyping that builds objects by assembly of laterally sliced contours from a solid model. We explored an improved product description for rapid manufacture as bilateral contouring for structure and panelling for strength (Kolarevic, 2003). Infrastructure typically found within aerospace, automotive, and shipbuilding industries, bilateral contouring is an organized matrix of horizontal and vertical interlocking ribs evenly distributed along a surface. These structures are monocoque and semi-monocoque assemblies composed of structural ribs and skinning attached by rivets and adhesives. Alternative, bi-lateral contouring discussed is an interlocking matrix of plywood strips having integral joinery for assembly. Unlike traditional methods of building representations through malleable materials for creating tangible objects (Friedman, 2002), this approach constructs with the implication for building life-size solutions. Three algorithms are presented as examples of rationalized design production with physical results. The first algorithm [Figure 1] deconstructs an initial 2D curved form into ribbed slices to be assembled through integral connections constructed as part of the rib solution. The second algorithm [Figure 2] deconstructs curved forms of greater complexity. The algorithm walks along the surface extracting surface information along horizontal and vertical axes saving surface information resulting in a ribbed structure of slight double curvature. The final algorithm [Figure 3] is expressed as plug-in software for Rhino that deconstructs a design to components for assembly as rib structures. The plug-in also translates geometries to a flatten position for 2D fabrication. The software demonstrates the full scope of the research exploration. Studies published by Dodgson argued that innovation technology (IvT) (Dodgson, Gann, Salter, 2004) helped in solving projects like the Guggenheim in Bilbao, the leaning Tower of Pisa in Italy, and the Millennium Bridge in London. Similarly, the method discussed in this paper will aid in solving physical production problems with complex building forms. References Bentley, P.J. (Ed.). Evolutionary Design by Computers. Morgan Kaufman Publishers Inc. San Francisco, CA, 1-73 Celani, G, (2004) “From simple to complex: using AutoCAD to build generative design systems” in: L. Caldas and J. Duarte (org.) Implementations issues in generative design systems. First Intl. Conference on Design Computing and Cognition, July 2004 Dodgson M, Gann D.M., Salter A, (2004), “Impact of Innovation Technology on Engineering Problem Solving: Lessons from High Profile Public Projects,” Industrial Dynamics, Innovation and Development, 2004 Dristas, (2004) “Design Operators.” Thesis. Massachusetts Institute of Technology, Cambridge, MA, 2004 Friedman, M, (2002), Gehry Talks: Architecture + Practice, Universe Publishing, New York, NY, 2002 Kolarevic, B, (2003), Architecture in the Digital Age: Design and Manufacturing, Spon Press, London, UK, 2003 Opas J, Bochnick H, Tuomi J, (1994), “Manufacturability Analysis as a Part of CAD/CAM Integration”, Intelligent Systems in Design and Manufacturing, 261-292 Rudolph S, Alber R, (2002), “An Evolutionary Approach to the Inverse Problem in Rule-Based Design Representations”, Artificial Intelligence in Design ’02, 329-350 Rich M, (1989), Digital Mockup, American Institute of Aeronautics and Astronautics, Reston, VA, 1989 Schön, D., The Reflective Practitioner: How Professional Think in Action. Basic Books. 1983 Shelden, D, (2003), “Digital Surface Representation and the Constructability of Gehry’s Architecture.” Diss. Massachusetts Institute of Technology, Cambridge, MA, 2003 Smithers T, Conkie A, Doheny J, Logan B, Millington K, (1989), “Design as Intelligent Behaviour: An AI in Design Thesis Programme”, Artificial Intelligence in Design, 293-334 Smithers T, (2002), “Synthesis in Designing”, Artificial Intelligence in Design ’02, 3-24 Stiny, G, (1977), “Ice-ray: a note on the generation of Chinese lattice designs” Environmental and Planning B, volume 4, pp. 89-98
keywords	Digital fabrication; bilateral contouring; integral connection; complex-curve
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	sigradi2004_101
id	sigradi2004_101
authors	Guillermo Vásquez de Velasco de la Puente
year	2004
title	En la aplicación de pantallas interactivas de plasma en el taller de diseño [The Application of Interactive Plasma Screens in the Design Studio]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This paper elaborates on the use of electronic pin-ups in real-time local reviews making use of larger format interactive plasma screens. The paper briefly explains the technical aspects of an actual implementation in the College of Architecture at Texas A&M University. The main focus of the paper is placed on the use of a 61. interactive plasma screen in a graduate design studio during the second semester of 2003 and the benefits that such an implementation has reported. The narrative explains how the use of an interactive plasma screen for informal as well as formal reviews is not only saving printing resources but it is also having a very positive impact on how we conduct design reviews.
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	acadia04_076
id	acadia04_076
authors	Hanna, Sean
year	2004
title	Modularity and Flexibility at the Small Scale: Evolving Continuous Material Variation with Stereolithography
source	Fabrication: Examining the Digital Practice of Architecture [Proceedings of the 23rd Annual Conference of the Association for Computer Aided Design in Architecture and the 2004 Conference of the AIA Technology in Architectural Practice Knowledge Community / ISBN 0-9696665-2-7] Cambridge (Ontario) 8-14 November, 2004, 76-87
doi	https://doi.org/10.52842/conf.acadia.2004.076
summary	In this paper, we introduce a technique by which the internal material properties of an object can be optimised at a microstructural level (5x10-5m) to counteract the forces that are applied to it. These can then be fabricated using the rapid prototyping method of stereolithography. The proposed technique is analogous to principles of mass customization and takes advantage of a flexible module to create complex structures in a manner that is computationally efficient and effective. The process is two-staged, in which a genetic algorithm evolves the topology of the microstructure and a second algorithm incorporating Finite Element Analysis then optimises the geometry. The examples shown are designed specifically for the fabrication technique, but the method and general principles are applicable to structural problems at any scale.
keywords	genetic algorithm, rapid prototyping, stereolithography, materials
series	ACADIA
email
last changed	2022/06/07 07:50

_id	ascaad2004_paper10
id	ascaad2004_paper10
authors	Khaled, Sherbini and Krawczyk, Robert
year	2004
title	Overview of Intelligent Architecture
source	eDesign in Architecture: ASCAAD's First International Conference on Computer Aided Architectural Design, 7-9 December 2004, KFUPM, Saudi Arabia
summary	The concept of intelligent architecture started as an interest in the latest integrated building systems operating a single building or facility, so that systems can communicate and exchange information. The communication among these systems allows the right responses and decisions to operate buildings in a productive, economical and convenient way. Communication and information sharing prevents decisions from interfering with other systems’ responses or operation. Systems’ decisions and responses form the responsive architecture that is represented by systems outputs. If intelligent buildings need to receive, analyze, and react according to such processes, responsive ones are required only to receive and react to only one input parameter. Technology and communication systems make it possible to combine several parameters by using system integration and computerization. Technology and computerized systems have enhanced and changed the manner of responses and provided a variety of decisions according to different sources of information. Receiving, analyzing, and reacting are the key criteria of intelligent building that this paper will explore. The input (reception) category covers information detection devices such as temperature sensors. The second category will be the category of analysing devices. The third category, decisions and outputs, will cover both output of sensory devices and forms of reaction and response that emanate from these systems. As a result of the third category, this paper will survey the forms of responses to determine whether or not the kinetic response is a viable choice. The paper will discuss if these three criteria are the only criteria creating intelligent building or if there are others. The paper will give an overview on intelligent architecture and explore in the main criteria determining intelligent building. The paper will then discuss when “responsive” and "kinetic" architecture becomes “intelligent”. The paper will also redefine the intelligent architecture in the light of available technology.
series	ASCAAD
email
last changed	2007/04/08 19:47

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