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	ddssar0203
id	ddssar0203
authors	Alkass, Sabah and Jrade, Ahmad
year	2002
title	A Web-Based Virtual Reality Model for Preliminary Estimates of Hi-Rise Building Projects
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings Avegoor, the Netherlands), 2002
summary	Cost estimating of a construction project at its early stage is considered to be very important task since it will be used as a base to commit or otherwise not to commit funds to that project. Preparation of a reliableand realistic preliminary estimate to aid the decision makers to commit funds for a specific project is a complicated assignment. Traditional methods and operations produced unsatisfactory aid due to lack ofaccuracy especially in the pre-design stage of a project. This participates in the increase of percentage of bankruptcy in the construction industry, which has dramatically climbed up and ranked as 15 percent of thewhole bankruptcies claimed in Canada (Statistic Canada 1998). This paper presents a methodology for developing and a Web-based model to automate preliminary cost estimates for hi-rise buildings. This is achieved by integrating a database with design drawings in a Virtual Reality (VR) environment. The model will automatically generate preliminary estimates after modifying a 3D CAD drawing. It provides the user the option to visualize and simulate the drawing and its cost data through VR environment. Having done that, it will allow owners, architects and cost engineers to view a constructed building project, change its geometric objects and shapes, and accordingly generate a new conceptual cost estimate.
series	DDSS
last changed	2003/11/21 15:15

_id	d9de
authors	Fukuda, T., Nagahama, R., Kaga, A. and Sasada, T.
year	2002
title	Collaboration Support System for City Plans or Community Designs Based on VR/CG Technology
doi	https://doi.org/10.52842/conf.caadria.2002.257
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 257-264
summary	This paper reports the collaboration support system for city plans or community designs based on virtual reality (VR) or computer graphics (CG) technology. This time we report to elaborate the extended potable VR equipment and expression method with CG to allow for the realistic viewing of night scenes, and apply to real projects.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	5c95
authors	Lou, C.W., Kaga, A. and Sasada, T.
year	2002
title	Environmental Design with Huge Landscape in Real-Time Simulation System: Real-time Simulation System to Real Project
doi	https://doi.org/10.52842/conf.caadria.2002.265
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 265-272
summary	This paper is the culmination of a period of studying and participating in certain real project on environmental design with realtime simulation system application. The focus of this paper is on understanding that a generally real-time simulation system, can render a complex scene that consisted by a huge landscape model with millions polygons and building models with thousands details. It is also more than just a collection of unorganized techniques. This paper must dual with issues of scene elements management as a front end that efficiently provide the ability to process complex and moving objects in a physically realistic way. We establish a platform providing good support for the environmental designers.
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	ga0221
id	ga0221
authors	Lunazzi, Renato Saleri
year	2002
title	Pseudo-urban automatic pattern generation
source	International Conference on Generative Art
summary	This research task aims to experiment automatic generative methods able to produce architectural and urban 3D-models. At this time, some interesting applicative results, rising from pseudo-random and l-system formalisms, came to generate complex and rather realistic immersive environments. Next step could be achieved by mixing those techniques to emerging calculus, dealing whith topographic or environmental constraints. As a matter of fact, future developments will aim to contribute to archeological or historical restitution, quickly providing credible 3D environments in a given historical context.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	23b9
authors	Mandagaran, María and Barros, Diana Rodríguez
year	2002
title	Patrimonio digital y modelos paramétricos tridimensionales [Digital Patrimony and 3D Parametric Models]
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 299-300
summary	This paper shows the results of 3-D modelling carried out on works of great architectural value. This case corresponds to the building system of Villa Victoria Cultural Center, Mar del Plata, Argentina. The building of a 3-D Digital Model implies the operations of geometric modelling by using Parametric CAD systems in this case, and to the operations of visual modelling in all respects. The analysis focused on three aspects: the morphological aspect, which comprises the visualization and the analysis of the model shapes; the constructional aspect, which deals with the component elements of the model ; and the realistic aspect, where shapes are complemented with appearence by incorporating materialization features which relate to the perception of the finished model.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	4f57
authors	Nikiforiadis, Faidon and Pitts, Adrian
year	2002
title	A Study of the Accuracy of Daylighting Simulation of Heavily Obstructed Buildings in the Urban Canyons of Athens
doi	https://doi.org/10.52842/conf.ecaade.2002.456
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 456-463
summary	This paper deals with the use and evaluation of daylighting simulation tools in relation to a complex urban environment. The environment concerned is one commonly found in city centre areas where the proximity of buildings leads to the creation of ‘urban canyons’; the result of this is that assessment and simulation of daylight requires a more sophisticated approach than for other situations. In urban areas building layout is the most important factor effecting daylight, sunlight and solar heat gain reaching a building. It also affects sunlight in open spaces, ventilation, shelter and the dispersal of pollutants. In order to produce a more realistic understanding of the dynamic effects of daylight, there is a need not only for the research and development of advanced CAD and lighting simulation tools, but also of the study of possible alternative methods in their application. In the work reported in this paper, an attempt has been made to move the focus of lighting and daylighting simulation from the scale of a room to that of a whole building; the building itself being surrounded by its specific urban environment (including its microclimate). The study evaluates if there is sufficient evidence that it is possible with such complexity to reach reliable computation results after executing the simulation. The case study presented uses a 4D model of an urban canyon to investigate the sensitivity of such a complex simulation system. It can also be used to find ways to analyse and predict how daylight is reflected, refracted, scattered, diffused, polarised, diffracted and absorbed as it traverses an urban environment.
series	eCAADe
email
last changed	2022/06/07 07:58

_id	d03a
authors	Noble, Douglas and Kensek, Karen M.
year	2002
title	CAD/CAM Methods in Support of Historic Preservation: A Case Study of the Freeman House by Frank Lloyd Wright
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 52-54
summary	Preservationists have an impressive array of digital tools to aid them in documentation and analysis of historic structures. The tools range from near photo-realistic renderings to demonstrate what a “restored” building might have looked like at one specifi c time in history to complex chemical analysis of paint chips and pigments to geographic information systems used as management tools for historic prop er ties. Computer-aided design / computer-aided manufacturing (CAD/CAM) is set of important digital aids in historic preservation efforts. This paper presents a case study of the use of CAD/CAM in support of an effort to restore a textile block house designed by Frank Lloyd Wright. CAD/CAM methods are being employed to help produce a new mold so that new textile blocks can be manufactured that match the existing blocks. An existing textile block mold was digitally scanned, digitally mirrored and edited, and will be fabricated from an aluminum billet to replace a mold that no longer exists. Although seemingly a simple process and well within current technological abilities, the work proved substantially more challenging that initially imagined.
keywords	CAD/CAM, historic preservation, textile block, Frank Lloyd Wright
series	SIGRADI
email
last changed	2016/03/10 09:56

_id	e81e
authors	Petric, J., Ucelli, G. and Conti, G.
year	2002
title	Participatory Design in Collaborative Virtual Environments
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 159-162
summary	This paper re-establishes the theoretical framework for participatory design evolved in the late sixties and early seventies as part of the movement towards a more explicit design methodology and attempts an explanation of why the concept failed to gain commitment from the architectural and urban design professionals. The issue of user participation in the processes of building and urban design is enjoying renewed attention following its relative neglect over the last 20 years due, in large measure, to significant advances in emerging information technologies, particularly multimedia, virtual reality and internettechnologies. This paper then gives an account of two significant and relevant developments in the evolution of the application of informationtechnologies with which the authors have been engaged. These are:a responsive and interactive interface to wholly immersive and realistic virtual reality representations of proposed buildings and urban neighbourhoods. an intuitive and platform-independent VR modelling environment allowing collaborative evolution of the scheme from withinthe virtual world. The efficacy of these IT developments is tested in the context of a design exercise in which three designers, from distributedlocations and using different computer platforms, collaboratively design an Information Centre from within the virtual world.
series	SIGRADI
email
last changed	2016/03/10 09:57

_id	255e
authors	Sarawgi, Tina and Paranandi, Murali
year	2002
title	Daylight Simulation: Examining its place during Conceptual Stages in a CAAD Studio
doi	https://doi.org/10.52842/conf.acadia.2002.263
source	Thresholds - Design, Research, Education and Practice, in the Space Between the Physical and the Virtual [Proceedings of the 2002 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-11-X] Pomona (California) 24-27 October 2002, pp. 263-270
summary	This paper reports on our experiences using computer graphic visual simulations to encouragearchitecture students to examine daylighting aspects of their design solutions during conceptual stagesin undergraduate design studios. Using computers for conceptual design was the major thrust of theinvestigation of these studios where daylight was one of the issues students examined for a four-weekperiod. We present our experiences and student work with traditional CGI-based and physics-basedradiosity rendering techniques. Our experiences show that although radiosity based visual simulation iscapable of producing more realistic images, in the design process its success was limited to studyingclearly defined interior spaces. CGI-based visualization, particularly when used in conjunction withtraditional physical models, was more useful and effective in the design process, being closer to thefluid nature of the design process. Further work needs to be done to make the currently availableradiosity-based software suitable for use in the design decision-making process.
series	ACADIA
email
last changed	2022/06/07 07:57

_id	ddssar0212
id	ddssar0212
authors	Scott Gowans and John Graham
year	2002
title	Appropriate Collectives: A Contemporary Structure For Collaborative Working
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings Avegoor, the Netherlands), 2002
summary	This paper attempts to illustrate the importance of the conceptual initiative in the design process and how, through the development of a poetic narrative, it can inform the process of creative design andmanufacture. The argument outlined proposes the adoption of a poetic narrative as a mechanism for defining and clarifying the designers’ intention with the use of metaphorical associations advocated as ameans of exploiting our innate ability for intuitive extrapolation. Our approach gives emphasis to the conceptual corollary or intellectual process that underpins all considered design work and challenges the traditionally accepted methods of project development where this phase of the process is seen as having a pre-prescribed beginning and end. The paper is also intended as a statement of intent that celebrates the unique nature of our interdisciplinary working practices and, as a contextualisingdocument that posits a realistic and contemporary vision for the future of collaborative endeavours. We illustrate how, through the adherence to a philosophy of creative realism and by the establishment of legitimate, ephemeral collectives; we can effectively instigate and address opportunities in many areas at any given time. In the paper we actively promote an expansive and creative engagement with the dynamics of project inception, development and control as a means of realising our collective aspirations and of ensuring project ownership in the widest sense. The paper discusses creatively critical architectural and new media projects that attempt to subvert a number of modern orthodoxies bysupplanting them with an affective internal logic.
series	DDSS
last changed	2003/08/07 16:36

_id	b605
authors	Tang, Shen-Kai and Liu, Yu-Tung
year	2002
title	A Digital Reconstruction Procedure for a Disappeared City Space and Its Activities
doi	https://doi.org/10.52842/conf.ecaade.2002.603
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 603-608
summary	Graduate Institute of Architecture, National Chiao Tung University, Hsinchu, 30050, TAIWAN Computer simulation technology was used well in virtual archaeology during the past five years but will be insufficient gradually in the future, just because the simulations have extended from static issues, such as implements, architectures and a whole city, to motional issues, such as cultural activities in a city. This paper developed a digital reconstruction procedure that integrated three main technologies including 3D scanner, motion capture and virtual reality cave (VR Cave), and implemented it to virtually reconstruct Chang-an City that existed 1400 years ago but disappeared now. The results of the simulations are not only realistic enough to being inside but also highly approved by archeologists, art historian and architects.
series	eCAADe
email
last changed	2022/06/07 07:56

_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

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