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	bsct_fotiadou
id	bsct_fotiadou
authors	Fotiadou, Angeliki
year	2007
title	Analysis of Design Support for Kinetic Structures
source	Vienna University of Technology; Building Science & Technology
summary	This thesis attempts the formation and systemization of a basis of knowledge and information, which is indispensable to turn a design support for kinetic structures into representation by means of a 3d animating program. Representation of kinetic structures by means of the existing ordinary software sources is possible; Nevertheless, such representation lacks of different important features and functions and results eventually in the total absence of a real model of the construction, which is valuable to the user of the program especially in the field of the kinetics, where everything depends on the movement: design not only requires, but demands for visualisation. A personal interest in kinetic architecture and therefore in the physical movement of structural elements in a building, as well as an attempt to “fathom” the possibility of changing this concept to visualization and modern reality by the use of a software are the main incentives of this master thesis. First, a general research will be performed in order to check the existence of similar or semisimilar proposals. The area in which the research will be held is the Bibliography in kinetic architecture and parametric design. A comparison of animation and 3D prototype software in well-known programs will focus on whether virtual weather conditions are considered as a parameter to the animation of the structure of the programs and case studies of several existing kinetic structures will be performed, in order to point out flaws and/or helpful commands in the programs in connection with the presentation of kinetic architecture. Criteria for the choice of the software: ability to customise and to produce geometric modelling, animation in relation to time (video animation) and the simulation after taking into consideration weather factors. Finally, using the computer and the scripting language, based probably on the theory of parametric design and primitive instancing, a realistic simulation of different elements will be performed in relation to variable measurements of luminance, ventilation and temperature so as to render feasible the construction of a whole structure. The results of the thesis will be used in the future as the basic knowledge in the creation of software for simulation of kinetic architecture. This program will be used as a tool for the architect to present a building, where kinetic architecture will be applied and to create simulation of the kinetic movement through a library of the existing prefabricated elements which will be created with the help of this thesis.
keywords	Kinetic architecture, 3D designing software, scripting, programming
series	thesis:MSc
email
more	http://cec.tuwien.ac.at
last changed	2007/07/16 17:51

_id	acadia07_250
id	acadia07_250
authors	Wierzbicki-Neagu, Madalina; de Silva, Clarence W.
year	2007
title	Development of Design Workflows for Kinetic Structures Using Fuzzy Logic
doi	https://doi.org/10.52842/conf.acadia.2007.250
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 250-261
summary	Kinetic structures offer the means to significantly expand the functional and performance features of traditionally static architectural solutions. However, the added element of motion creates considerable challenges during conceptualization and introduction into existing design workflows. Rigidly foldable shells offer tremendous potential for developing kinetic architectural structures. They require few support points, eliminate sliding overlaps and are relatively easy to mock up as initial concepts. Achieving the desired motion range, however, requires a significant design effort. If performed manually, the motion optimization is tedious and unpredictable. This paper examines possible optimization algorithmic strategies with the use of fuzzy logic. Specifically the paper focuses on the application of fuzzy logic as a tool for effectively negotiating modifications of complex linked geometries while using intuitive, high level statements and directives. Highlighted is the potential of fuzzy logic-based algorithms as tools that can help the transition of existing design workflows into environments that can handle extended challenges involving kinetic geometries.
series	ACADIA
email
last changed	2022/06/07 07:57

_id	caadria2007_611
id	caadria2007_611
authors	Arpornwicharnop, Kittisak; Pinyo Jinuntuya and Pizzanu Kanongchaiyos
year	2007
title	Simulation Software Development for Urban Landscape Possibility Analysis
doi	https://doi.org/10.52842/conf.caadria.2007.x.u9u
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	This research paper proposes a simulation software development for possibility analysis of urban landscape development project. Normally, analysis of land potentiality and feasibility study for investment are necessary pre-processed for supporting urban planning, developing and architectural designing. However, most available tools are usually tailor made for each process individually, causing difficulties in information interchange between each processes. In this research, we propose a policy making support system for urban planning project development providing several functions such as testing land use and its physical character which are important to urban expansion and architectural design based on impact analysis of urban comprehensive plan. The proposed integrated system consists of a topological analysis module, constraint checking module and geographical information processing module. First, Geographical information stored in 3D graphic file format is converted to object-oriented data model and stored in a database. With several constraint and regulations, the stored information is then checked in the landscape topological analysis module. In evaluation process, the developed software is tested with geographical information of Bangkok area under constraints and regulations of Building Control Act of Thailand. While controlling building properties, the software can model the buildings and generate urban physical character. The result is then checked by several urban landscape planning experts. Experimental result shows that proposed system provides flexibility in information interchanging with constraints and regulations updating without system reconfiguration. The system also provides internet accessing for public participation in the process of making urban comprehensive plan.
series	CAADRIA
type	normal paper
email
last changed	2022/06/07 07:50

_id	caadria2007_069
id	caadria2007_069
authors	Chiu, Hao-Hsiu
year	2007
title	Telepinup System: Supporting Dynamic Remote Interaction in Design Reviews
doi	https://doi.org/10.52842/conf.caadria.2007.x.u1d
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	This paper addresses a pilot study in proposing a series of interface design solutions as integrated parts of a virtual communication space prototype: Telepinup System, which intends to enhance dynamic and seamless experiences for distributed architectural design discussions through digital interaction. Aiming to support graphic-centered, nonlinear, and contextual way of visualverbal communication suitable for design discussion, the prototype tool is developed to demonstrate various interface solutions and to be evaluated within the actual use contexts in two user experiments for its efficiency and effectiveness of underlying design criteria and proposed solutions. Interaction patterns during the experiments are recorded in the database and immediately visualized at the end of each test for participants to give instant feedback and for later analysis. The initial result shows that the collaboration between some critical interface solutions helps seamlessly synchronize graphical, verbal and social information exchange.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	acadia07_212
id	acadia07_212
authors	Christenson, Mike
year	2007
title	Re-representation of Urban Imagery: Strategies for Constructing Knowledge
doi	https://doi.org/10.52842/conf.acadia.2007.212
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 212-221
summary	Productive analysis of photographically composed urban imagery is a ‘wicked’ problem due to the presence of multiple, entangled systems. This paper proposes constructive analytic techniques for composite imagery, consisting of digitally generating and superimposing graphic overlaps within and adjacent to original images, producing new images not rationally related to nameable systems. These new images promote pattern identifi cation, which in turn has the potential to inform conclusions about memory and navigation in urban sites. Thus, the difficulty inherent in systemic urban analysis is shifted to one of abstract image interpretation, and a new set of refl ective strategies becomes relevant. These strategies are illustrated through analysis of two existing systems in a midsize, Midwestern city: a system of pedestrian walkways connecting several downtown buildings, and a system of overhead power distribution structures. The systems have observable characteristics in common. But, while the walkways represent a deliberate attempt to structure memory and thus to aid navigation, the system of power distribution structures makes no such claim. The paper discusses specific implications of the method informing the author’s ongoing research and architectural design teaching. In conclusion, wider implications are suggested, informing the general question of constructing urban knowledge.
series	ACADIA
email
last changed	2022/06/07 07:56

_id	ascaad2007_052
id	ascaad2007_052
authors	Hamza, N. and M. Horne
year	2007
title	Building Information Modelling: Empowering Energy Conscious Design
source	Em‘body’ing Virtual Architecture: The Third International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2007), 28-30 November 2007, Alexandria, Egypt, pp. 661-670
summary	The increasing awareness of climate change and carbon dioxide emissions from the built environment is resulting in the need to visualize the environmental performance of buildings. One of the recent drivers in the UK has been the tightening of building regulations relating to energy consumption in buildings, mandating all buildings to be performance evaluated by accredited environmental simulation tools to test their carbon dioxide emission against set targets. Currently there is major confusion on all levels from architects to building control officers and contractors on how to engrain energy consciousness principles in the design and construction of buildings. Within this context, ‘Building Information Modelling’ that is linked to ‘Building Performance Modelling’ is increasingly being looked upon as a tool to facilitate the communication between the design team and contractors and to provide a transparent information model on the specification and targeted energy consumption of all new/ refurbished buildings to all parties involved. In this paper, analysis of the benefits and drawbacks of current efforts to combine those two comprehensive databases will be investigated. A sample of main software development companies, architects and contractors, using semi-structured interviews is undertaken to find out how Building Integrated Modelling (BIM) and Building Performance Modelling (BPM) can support the design and construction teams to deliver energy conscious buildings.
series	ASCAAD
email
last changed	2008/01/21 22:00

_id	caadria2007_639
id	caadria2007_639
authors	Jinuntuya, Pinyo; Jirayod Theppipit
year	2007
title	Temporary Housing Design and Planning Software for Disaster Relief Decision Support System
doi	https://doi.org/10.52842/conf.caadria.2007.x.k9q
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	There is a continuous and urgent need for disaster relief in Thailand and countries suffering from floods and tsunami impact. Based on this issue, design and planning software for temporary housing project has been developed, as well as the process and guideline for implementation. This paper describes a unique coupling of interactive 3D virtual environment with parametric designing in order to manage disaster relief project more efficiently. Architects and planners can use the functionality of software on both design simulation and project evaluation aspects. We need to provide correct information to help people making decision when they are in disaster. So the disaster relief decision support system must offer proper information of crisis management focused on people, place, and process. One of the main features of software is the relationship modeling of essential factors such as number of people, houses, budget, time, and space. This automatic temporary houses generation and space planning is simulated for land use and layout plan design with cost estimation analysis. The system components were proposed to a new disaster relief system in alternative approach. Using community-based development will not cost budget but required people participation. Our software’s space coordination will start and centered from available space in school or temple with sufficient infrastructure. After essential factors are inputted, appropriated number of temporary houses, public facilities, and management guideline will be generated to support further planning decision. Our core system was developed on Java and Swing Technology, empowered by real-time 3D rendering CAD engine. In addition, “Virtools” as our Authoring Tools was applied to improve design interaction and explore rapid software prototyping. At the end, we discuss the comparison between real situations in Thailand and appropriate design standardization, which should be reconsidered how to manage crisis with the limitation of time and budget from government.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	ecaade2007_166
id	ecaade2007_166
authors	Liapi, Katherine A.
year	2007
title	An Integrative Design and Spatial Visualization System for Cable Strut Self-tensioned Structures
doi	https://doi.org/10.52842/conf.ecaade.2007.027
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 27-34
summary	Novel conceptions of structures consisting of spatial formations of struts and cables present a uniquely defined morphology and structural performance, and offer opportunities for innovative applications in building design. A common feature of these structures is that their spatial geometry is not “a priori” given. This paper is focused on a specific type of cable-strut structure that occurs from the assembly of self tensioned cable-strut modules The spatial configuration of these structures is very complex and necessitated the development of elaborate geometric algorithms that permit the generation of their formal geometry in a virtual 3D environment. To facilitate both the design and the construction of such structures, a spatial visualization system, which integrates a) algorithms for initial form generation, b) geometric parameters that simulate construction stiffening processes, and c) appropriate structural analysis methods, has been developed. The structural organization and parts of this system are presented in this paper. The system renders feasible the exploration of alternate geometries with various levels of pre-stress and displays initial and final configuration of the structure. It also allows for structural analysis data visualization. Examples of projects designed with the assistance of this system are included and discussed.
keywords	Cable-strut structures, tensegrity structures, modeling
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ecaade2007_189
id	ecaade2007_189
authors	Mark, Earl
year	2007
title	Simulating Dynamic Forces in Design with Special Effects Tools
doi	https://doi.org/10.52842/conf.ecaade.2007.219
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 219-226
summary	Special effects technology can facilitate dynamic sketching in the early stage of a design project without needing time-consuming effort. This form of sketching was tested in a design studio taught by the author. The study of dynamic materials and oceanfront site conditions set the stage at the beginning of a design process for a more comprehensive analysis later on. On the one hand, the risk of using special effects tools is that the visual look can seem convincing, but the apparent result is based upon an overly simplified set of assumptions. On the other hand, the use of such technology can be very stimulating to the design imagination without requiring complex analysis that may bog down the free flow of ideas. Once a greater commitment is made to a particular design proposal, more complete physical analysis and modeling can be undertaken to help avoid the risk of false first impressions. In the studio, cloth simulation was used to develop the design of tension membrane structures (tents) that retracted and unfurled in a series of complex movements. Fluid dynamics effects were used in the design and development of related boat dock facilities. A wind-tunnel simulation tool was used to explore the performance of the tension-membrane fabrics under varied wind loads. The visualization techniques were complemented by ¼ to ½ scale assembled components created by rapid prototyping. The use of an actual wind-tunnel further tested the prototypes in some cases. On the whole, quickly implemented special effects were the starting point for reacting to and developing some initial design concepts and served as the basis for more complete physical modeling of prototypes later on. Using animation as a design method is well established in other work (Hirschberg 06). Animation is also a helpful way to work out the step by step assembly of complex architectural form (Mark 95). The special effects tools permit a larger range of initial design alternatives to be initially considered that are subsequently narrowed down by physically based prototypes that are more predictive of real world performance.
keywords	Cloth simulation, fluid dynamics effects, design sketching, special effects, tension membrane fabrics
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ijac20075405
id	ijac20075405
authors	Oxman, Neri
year	2007
title	Get Real Towards Performance-Driven Computational Geometry
source	International Journal of Architectural Computing vol. 5 - no. 4, pp. 663-684
summary	In historic design conventions geometry has traditionally promoted descriptive manifestations of form. Beyond the realm of geometry, the concept of performance which may inform such manifestations also carries important potential for design generation. This work explores the relation between geometry and performance from a computational-geometry perspective. It does so by revisiting certain analytical tools offered in most of today's 3-D modelers which support the evaluation of any generated surface geometry specifically curvature and draft angle analysis. It is demonstrated that these tools can be reconstructed with added functionality assigning 3-D geometrical features informed by structural and environmental performance respectively. In the examples illustrated surface thickness (as a function of structural performance) is assigned to curvature values, and transparency (as a function of light performance) is assigned to light analysis values. In a broader scope this work promotes a methodology of performance-informed form generation by means of computational geometry. Vector and tensor math was exploited to reconstruct existing analytical tools adapted to function as design generators.
series	journal
email
last changed	2008/02/25 20:30

_id	e5a8
id	e5a8
authors	Saghafi, Mahmoud Reza; Jill Franz, Philip Crowther
year	2010
title	Crossing the Cultural Divide: A Contemporary Holistic Framework for Conceptualising Design Studio Education
source	CONNECTED 2010 – 2ND INTERNATIONAL CONFERENCE ON DESIGN EDUCATION 28 JUNE - 1 JULY 2010, UNIVERSITY OF NEW SOUTH WALES, SYDNEY, AUSTRALIA
summary	While the studio is widely accepted as the learning environment where architecture students most effectively learn how to design (Mahgoub, 2007:195), there are surprisingly few studies that attempt to identify in a qualitative way the interrelated factors that contribute to and support design studio learning (Bose, 2007:131). Such a situation seems problematic given the changes and challenges facing education including design education. Overall, there is growing support for re-examining (perhaps redefining) the design studio particularly in response to the impact of new technologies but as this paper argues this should not occur independently of the other elements and qualities comprising the design studio. In this respect, this paper describes a framework developed for a doctoral project concerned with capturing and more holistically understanding the complexity and potential of the design studio to operate within an increasingly and largely unpredictable global context. Integral to this is a comparative analysis of selected cases underpinned by grounded theory methodology of the traditional design studio and the virtual design studio informed by emerging pedagogical theory and the experiences of those most intimately involved – students and lecturers. In addition to providing a conceptual model for future research, the framework is of value to educators currently interested in developing as well as evaluating learning environments for design.
keywords	design studio, learning environment, online education
series	other
type	normal paper
email
more	http://eprints.qut.edu.au/32147/1/c32147.pdf
last changed	2010/11/16 08:26

_id	sigradi2007_af50
id	sigradi2007_af50
authors	Sanguinetti, Paola
year	2007
title	Representing BIM-based design process [Representando Procesos de Diseño Basados en BIM]
source	SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 196-199
summary	This paper focuses on the study of parametric modeling using a BIM tool for conceptual design. In order to understand the use of BIM in the architectural design process, we compare the process of detail design and concept design using a BIM-based parametric tool. We present the results of two empirical studies: the design of a parametric curtain wall system, based on the work of 3 student teams; and the design of a parametric kinetic component, based on the work of 5 individual students. A comparative analysis of both processes is used to derive a process model.
keywords	Parametric design process
series	SIGRADI
email
last changed	2016/03/10 09:59

_id	acadia07_242
id	acadia07_242
authors	Sanguinetti, Paola; Abdelmohsen, Sherif
year	2007
title	242 On the Strategic Integration of Sketching And Parametric Modeling in Conceptual Design
doi	https://doi.org/10.52842/conf.acadia.2007.242
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 242-249
summary	Architects perform problem-solving tasks while designing through various externalization modes. Among the architectural community sketching is associated with conceptual design, and parametric modeling is seen as a tool for detailed design development. However, parametric modeling is increasingly being used for exploring design concepts. We propose that sketching and parametric modeling can be integrated strategically as alternate externalization modes to support problem solving in conceptual design. With sketching, architects are able to externalize their ideas quickly and effortlessly, as the flexible structure of sketching provokes multiple interpretations through continuous refl ection. With parametric modeling, architects must define a set of parameters and rule-based constraints. By modeling design objects as parametric, multiple design variations can be generated, modifi ed, and evaluated. In this paper we describe an efficient process of problem-solving by studying the strategic use of sketching and parametric modeling in conceptual design. We conduct an experiment to explore the processes involved in both modes. Digital sketching is recorded by the Logitech io2 personal digital pen, and parametric modeling using Digital Project software is recorded by screen video capturing software, followed by a retrospective analysis. The ACADIA 2007 competition brief is used as the design task.
series	ACADIA
email
last changed	2022/06/07 07:56

_id	caadria2007_503
id	caadria2007_503
authors	Sat, Reika; Bin Lu, Mayumi, Oyama-Higa. Tsuneo Jozen and Katsuya Nagae
year	2007
title	Impact of Design Tools with Game-Like Function on Designer
doi	https://doi.org/10.52842/conf.caadria.2007.x.x1x
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	Various visualization design tools such as CG and VR have been widely used in the process of architectural design and urban planning. The applications of these tools not only assist the designers but also make it possible to involve other relevant professionals and ordinary residents. In order to enable more convenient applications of the tools in the design process and instigate the interests of additional parties of relevance, we add entertainment function to the design tools. In order to test the results of such design tools resembling computer games, we examined the status of users during the design process when these tools being employed. Comparison of the results of questionnaire and collections of physiological data indicated the unique effectiveness of game-like design tools. Pulse detection at ear was used to check the changes of blood supply for left and right hemispheres. The data collected were then visualized by complex Chaos analysis. Comparison of the processed data indicated the different brain status when a user applies these tools in the design and showed the effectiveness of the tools and their impact on the designer. Our results support the usefulness of game-like design tools and may lead to further developments of contents and methods to advance such tools.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	bsct_senses
id	bsct_senses
authors	Senses, Nilufer
year	2007
title	Foam Structures: A Comparative Structural Efficiency Analysis Based on the Building Case "Watercube"
source	Vienna University of Technology; Building Science & Technology
summary	Foam structure in macro-scale has arisen as a new type of large span building structure recently which is a product of cooperation of advanced structural design, radical architectural design approach, and computer and software technology, and efficiency of foam structure became an important question to answer which could help further structural improvements. This study analyses efficiency of large span foam structure relative to conventional large span building structures with a parametric simulation method. Space frames are a special case of conventional large span structures one compared with foam structures, because it satisfies criteria such as being lightweight and three-dimensional as foam structure. Analysis is based on the comparison of base cases of foam model and space frame model, which are developed on light of real projects the Water Cube and the Symbol Zone of Expo’70, based on the parameters structural depth, weight and displacement, and vertical and horizontal load cases. During the analysis structural behavior of base cases were simulated by using a special structural behavior simulation program. It was found that foam model is more efficient than space frame model in terms of structural depth which is an important issue for large span building structures from both architectural and engineering point of view. Capability of spanning large distance with significantly less structural depth makes foam structure a preferable, new generation, steel structure for large spans. Moreover, the development process of base case foam model demonstrated the critical importance of geometrical design concerns of foam structure. Structural behavior simulations were exposed that structural optimization is one of the vitally important process of structural design of the foam structure.
keywords	Foam structure, space frame, geometrical optimization, structural optimization, structural behavior simulation
series	thesis:MSc
email
more	http://cec.tuwien.ac.at
last changed	2007/07/16 17:51

_id	ecaade2007_011
id	ecaade2007_011
authors	Tessmann, Oliver
year	2007
title	Structural Analysis as Driver in Surface-based Design Approaches
doi	https://doi.org/10.52842/conf.ecaade.2007.109
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 109-115
summary	This ongoing research argues for novel strategies to integrate structural analysis data in an architectural design approach. Instead of a linear procedure of synthesis, analysis and post-rationalisation a synthesis/analysis loop is installed that uses structural analysis data as design driver from early on. The approach is not aiming for a pure force-driven form-finding or optimization process but regards structural performance as one design criteria among others. Equilibrium between multiple parameters is aspired instead of a single-parameter-optimum. The research is conducted by a custom-made digital interface between a 3d modelling software and an application for structural analysis of space frames structures. Surfaces are translated into meshes with supports at user-defined nodes and then exposed to its dead load in the structural analysis software. The resulting nodal deviation is feed into an algorithm that steers the appropriate reaction towards the local stresses and deviations, taking into account the mesh topology, its supports and their position in the mesh. The initial mesh is optimized in shape transformed back into a double-layer surface model in the 3d software which evolves into an interconnected two-layer space frame. An instant feedback from synthesis to analysis and vice versa is installed. Analysing techniques migrate into the realm of synthesis.
keywords	Optimization, collaborative design, structure and surface
series	eCAADe
email
last changed	2022/06/07 07:58

_id	acadia07_048
id	acadia07_048
authors	Vollen, Jason; Clifford, Dale; Winn, Kelly; Gindlesparger, Matt
year	2007
title	Digital Fabric: Generating Ceramic Catenary Networks
doi	https://doi.org/10.52842/conf.acadia.2007.048
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 48-55
summary	Digital modeling in the design environment has prompted intuitive shaping of architectural form. The pliability of the imagination allows limitless possibilities of shape without a constrained methodology. This paper chronicles a design exploring catenary form-finding using parametric constraints in a dynamic modeling environment. Catenary structural networks are treated as digital cloth objects. Applying parametric edge and point constraints simulates various behavior patterns under gravity load. The integration of real-time Finite Element Method [FEM] and dynamic cloth simulation presents an intuitive method for the design and analysis of catenary structures. Constraints resist the limitless pliability of shape and hone the intuition using force to find form realized as a ceramic catenary network.
series	ACADIA
email
last changed	2022/06/07 07:58

_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

_id	ijac20075404
id	ijac20075404
authors	Wierzbicki, Madalina N.; de Silva, Clarence W.
year	2007
title	Design Tools for Foldable Structures with Application of Fuzzy Logic
source	International Journal of Architectural Computing vol. 5 - no. 4, pp. 645-662
summary	Rigidly foldable shells offer tremendous potential for developing kinetic architectural structures. However, the added element of motion poses new design challenges. Initially, sketchy shell geometry is constructed to reflect the intended form. Further steps involve assuring an error free folding within a range that satisfies desired functional requirements. The kinematics of a parallel topology of the shell's geometry is difficult to express algorithmically what prevents from developing of automated adjustment tools based on computational methods. The geometry can be adjusted manually based on intuitive observations; however the process is tedious, time consuming and unpredictable. This paper develops automated adjustment tools based on the intuitive approach of a human designer. The study applies the fuzzy logic formalism as a computational interface between human approach and structured adjustments to the geometry. The advantages of fuzzy logic stem from its natural ability to represent human knowledge and effectiveness in reconciling ambiguities, uncertainties and redundancies that the intuitive human approach brings along. The development steps of fuzzy logic based algorithm are presented. Performed evaluation tests and the results are discussed.
series	journal
last changed	2008/02/25 20:30

_id	ascaad2007_002
id	ascaad2007_002
authors	Abdellatif, R. and C. Calderon
year	2007
title	SecondLife: A Computer-Mediated Tool for Distance-Learning in Architecture Education?
source	Em‘body’ing Virtual Architecture: The Third International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2007), 28-30 November 2007, Alexandria, Egypt, pp. 17-34
summary	Despite the importance of distance learning for its ability to reach a wide audience, easiness to access materials, and its lower cost compared to traditional learning, architecture education has not been well served by distance education. This is because it has a higher level of learning objectives, it is taught by coaching methodologies, and involves nonverbal forms of communication. One of the most common learning methods used in the design studio is the Criticism/Critique, which is a graphic and oral type of communication between the tutor and the students. In this investigation, Second Life, a massive multi-user online virtual environment that offers three-dimensional spatial capabilities via Avatars impersonation, is used as a computer-mediated tool for text and graphic-based communication in a distance learning situation. The study describes a demonstration experiment where students had to communicate with their tutor, display and describe their projects at a distance, in a purposely designed criticism space in SecondLife. The main objective of this paper is to observe and document the effects and the use of SecondLife virtual environment as an online 3D graphical-based tool of computer-mediated communication in distance learning in architecture education. The study also answers some questions: How well did the students use the tools of the medium provide? Was there a sense of personal communication and realism gained through using Avatars in the virtual environment? Did SecondLife provide a successful means of communication for a graphic-based context? And what are the students’ opinions about the learning environment? Using multiple methods of data collection, mainly based on an electronic observation of the experiment, questioning the participants before and after the experiment, and the analysis of the chat transcripts, the study presents descriptive results of the experiment, and discusses its main features. Proposals for modifications are made for future replications.
series	ASCAAD
email
last changed	2008/01/21 22:00

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