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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Hits 1 to 20 of 437

_id acadia04_256
id acadia04_256
authors Jabi, Wassim
year 2004
title Digital Tectonics: The intersection of the physical and the virtual
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, 256-269
doi https://doi.org/10.52842/conf.acadia.2004.256
summary The advent of automated manufacturing processes and the possibility of directly translating virtual creations into physical artifacts brought forth the possibility of exploring a digital tectonic: the poetics of digitally conceived, structurally clarified and directly manufactured architecture. CAD/CAM equipment is being rapidly installed in schools of architecture without much thought given to its effect on the tradition of tectonics. To investigate these effects, this paper includes discussions of the tradition of architectural tectonics and of more recent works that illustrate the possibilities of digital tectonics. This discussion is followed by a brief survey of some of the research in the area of analog/digital pedagogy. Additionally, two experiments were conducted in an academic course setting that explored analog, digital, and hybrid approaches to the creation of architectural artifacts. The physical and virtual artifacts from the two experiments were analyzed and commonalities and differences were discerned. The research project reported in this paper further clarifies the notion of digital tectonics as the poetics of digitally constructed assemblages, and points to possible pitfalls of using CAD/CAM equipment that disregard the materiality of components and their interconnectedness.
keywords Digital Tectonics, Fabrication, CAD/CAM, Virtual Reality, Collaboration
series ACADIA
email
last changed 2022/06/07 07:52

_id sigradi2004_236
id sigradi2004_236
authors Fernando Rodrigues Lima; Carlos Alberto Nunes Cosenza; Alessandro da Silva
year 2004
title Sistema de representação gráfica para estudo de localização de atividades ligadas ao ciclo de produção do biodiesel no nordeste brasileiro [Graphic Representation System for a Localization Study on Activities Related to the Production Cycle of Biodiesel in the Brazilian Northeast]
source SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary This paper presents the development of graphics interface on GIS (Georeferenced Information System) applied to a location model. The model performs an hierarchical analysis to locate activities related to the Biodiesel production cycle, based on castor oil (Ricinus communis L.). The case study is placed in Brazilian Northeast region, and indicates properly selected counties for Biodiesel major stages: planting, crushing and oil processing. The GIS was implemented on Windows with Personal Geodatabase and Feature Class, applied to SAD 69 references, and involves a large set of administrative, economical, social, environmental and agricultural data. Both partial and final results were obtained with graphical and query methods for selecting and editing data. A fuzzy set program imports territorial offer data and exports location indicators to database. Thematic maps are used for hierarchical data organisation and to perform a Biodiesel stages zone classification, based on graphical analysis of generated data.
keywords GIS, location model, digital mapping
series SIGRADI
email
last changed 2016/03/10 09:51

_id ddss2006-pb-101
id DDSS2006-PB-101
authors Aloys W.J. Borgers, I.M.E. Smeets, A.D.A.M. Kemperman, and H.J.P. Timmermans
year 2006
title Simulation of Micro Pedestrian Behaviour in Shopping Streets
source Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) 2006, Progress in Design & Decision Support Systems in Architecture and Urban Planning, Eindhoven: Eindhoven University of Technology, ISBN-10: 90-386-1756-9, ISBN-13: 978-90-386-1756-5, p. 101-116
summary Over the years, scholars have developed various models of pedestrian movement. These models can be used to assess the effects of detailed design decisions or to predict pedestrian behaviour under conditions of crowding. To date, not much attention has been paid to pedestrians' shopping behaviour at the micro level. Therefore, the main purpose of this project is to test a model that aims at simulating micro pedestrian behaviour in shopping streets, including entering shops. The model assumes a detailed network of links to represent the structure of street segments and entrances to the shops. The basic principle underlying the model is that a pedestrian moves from one link in the network to another, adjacent link. In fact, a pedestrian enters a segment at one side, heading for the other side of the segment. However, a pedestrian might enter the segment by leaving a shop as well. Then, the pedestrian might be heading for either side of the segment. While transferring from the current link to the next link, the pedestrian will be attracted by the shops along both sides of the street. The study area is Antwerp's main shopping street. During a one-week workshop in July 2004, students observed pedestrian movement in this shopping street. An inventory of some physical characteristics of the shopping street was made and pedestrians were tracked through two separate segments of the shopping street. In total, 334 pedestrians were tracked. A conventional multinomial logit model is used to simulate pedestrians' micro behaviour. The process of consecutively selecting links continues until the pedestrian has reached one of the terminal links or a shop. The model performs very well. Simulated routes were used to assess the validity of the model. Observed and simulated link loading correspond fairly well, however, the model seems to slightly mispredict the attraction of a number of shops.
keywords Micro pedestrian behaviour, Shopping street, Simulation
series DDSS
last changed 2006/08/29 12:55

_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 “business views”. We propose a 4 steps-method to compose business views. The first step identifies the users’ 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’s 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 eaea2003_11-bremer-sander
id eaea2003_11-bremer-sander
authors Bremer, S. and Sander, H.
year 2004
title View from the Road: Environmental Simulation for the Fractal City of Rhine Ruhr
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. 43-47
summary Highway seems to be more an issue of traffic planning than of urban design. But the highway can be a very important factor for the modern city pattern. Highways shape the spatial form of the fractal city. The modern highway can define new cores outside and “interior edges” within the city. Seen as a planning tool, highways are the great neglected opportunity in city and regional design. The 1st Architecture Biennial, 1ab, taking place from May 2003 to July 2003 in Rotterdam, explores the creative potentials of modern highways worldwide. An international research team discovered the spatial functions of highways in modern agglomerations. This lecture will give an overview of the results of the worldwide analyses and the design projects that had been undertaken. Both authors are members of the German research team. The German team examined the A 42 running through the Ruhrgebiet, a former coal and steal area in western Germany. The Ruhr Area is converting from an industrially orientated region to an agglomeration of high technology and science. But the regional image remains the same due to the fact that the changes cannot be seen, neither physically, nor from the road. Here, the highway could be used as a catalyst supporting and structuring the spatial changes to make them more legible for the people of Rhine-Ruhr. The nature becomes the most important tool of highway design. Landscape forms a linkage between the different cities of the region. Together with the A 40 and other local highways the region becomes the most important (and largest) public space of the new Rhine-Ruhr. The highway seen as a work of urban art can be designed only from the perspective of the driving car.
series EAEA
more http://info.tuwien.ac.at/eaea
last changed 2005/09/09 10:43

_id ascaad2004_paper1
id ascaad2004_paper1
authors Eldin, Neil N. and K.A. Eldrandaly
year 2004
title A Computer-Aided System for Site Selection of Major Capital Investments
source eDesign in Architecture: ASCAAD's First International Conference on Computer Aided Architectural Design, 7-9 December 2004, KFUPM, Saudi Arabia
summary Site selection for capital investments is a crucial complex decision for owners and analysts. Difficulties are caused by the inclusion of the numerous possible sites that may qualify, multiple objectives that could also contradict each other, intangible objectives that are difficult to quantify, diversity of interest groups, uncertainties regarding external factors such as government legislations, uncertainties regarding the timing required for permitting the sites in question, and unknown construction challenges for the different sites. As such, these exercises are multi-facetted and necessitate the employment of analysts who possess in-depth knowledge in a number of fields. More importantly, a solution must satisfy a number of physical suitability criteria, as well as, meeting a number of social, economical, environmental and political requirements. Consequently, a number of specialized tools is frequently utilized to ensure reaching an optimal decision. This paper presents a new system that integrates Analytic Hierarchy Process (AHP) operations within a Geographic Information System (GIS) application to determine the optimum site for a specified facility. The system was validated through a facility for a selected metropolitan area.
series ASCAAD
last changed 2007/04/08 19:47

_id 11cb
id 11cb
authors Oguzhan Özcan
year 2004
title MATHEMATICS AND DESIGN EDUCATION
source Proceedings of the Fourth International Conference of Mathematics & Design, Special Edition of the Journal of Mathematics & Design, Volume 4, No.1, pp. 199-203.
summary Many people believe that mathematical thought is an essential element of creativity. The origin of this idea in art dates back to Plato. Asserting that aesthetics is based on logical and mathematical rules, Plato had noticed that geometrical forms were “forms of beauty” in his late years. Unlike his contemporaries, he had stressed that the use of geometrical forms such as lines, circles, planes, cubes in a composition would aid to form an aesthetics. The rational forms of Plato and the rules of geometry have formed the basis of antique Greek art, sculpture and architecture and have influenced art and design throughout history in varying degrees. This emphasis on geometry has continued in modern design, reflected prominently by Kandinsky’s geometric classifications .

Mathematics and especially geometry have found increasing application in the computer-based design environment of our day. The computer has become the central tool in the modern design environment, replacing the brush, the paints, the pens and pencils of the artist. However, if the artist does not master the internal working of this new tool thoroughly, he can neither develop nor express his creativity. If the designer merely learns how to use a computer-based tool, he risks producing designs that appear to be created by a computer. From this perspective, many design schools have included computer courses, which teach not only the use of application programs but also programming to modify and create computer-based tools.

In the current academic educational structure, different techniques are used to show the interrelationship of design and programming to students. One of the best examples in this area is an application program that attempts to teach the programming logic to design students in a simple way. One of the earliest examples of such programs is the Topdown Programming Shell developed by Mitchell, Liggett and Tan in 1988 . The Topdown system is an educational CAD tool for architectural applications, where students program in Pascal to create architectural objects. Different examples of such educational programs have appeared since then. A recent fine example of these is the book and program called “Design by Number” by John Maeda . In that book, students are led to learn programming by coding in a simple programming language to create various graphical primitives.

However, visual programming is based largely on geometry and one cannot master the use of computer-based tools without a through understanding of the mathematical principles involved. Therefore, in a model for design education, computer-based application and creativity classes should be supported by "mathematics for design" courses. The definition of such a course and its application in the multimedia design program is the subject of this article.

series other
type normal paper
email
last changed 2005/04/07 15:36

_id 2004_095
id 2004_095
authors Sass, Larry
year 2004
title Design for Self Assembly of Building Components using Rapid Prototyping
source Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 95-104
doi https://doi.org/10.52842/conf.ecaade.2004.095
summary Design of assemblies will become an area of study when using rapid prototyping devices in the architectural design process becomes standard practice. This paper is a presentation of a design process study focused on understanding a method of working with rapid prototyping devices in a creative design process. This paper has an emphasis is on the creation of physically large models. These models are built from many layers of detail and are too large to print on a conventional 3D building device (3D printer). In response to this is a proposal to design assemblies as a means to create models of parts manufactured with rapid prototyping devices. Design for Assembly (DFA) becomes an exclusive process within this method of model making. Designing assemblies as part of a creative design enterprise offers greater knowledge of the building's construct at an early stage of the process. As an example, there are three physical models built from 3D CAD descriptions for this study. These models are manufactured from various rapid prototyping devices and differing processes of assembly. They are evidence of DFA as a necessary process in architectural design when using rapid prototyping devices.
keywords Digital Fabrication, Design Methods, Design for Assembly
series eCAADe
last changed 2022/06/07 07:57

_id cf2011_p018
id cf2011_p018
authors Sokmenoglu, Ahu; Cagdas Gulen, Sariyildiz Sevil
year 2011
title A Multi-dimensional Exploration of Urban Attributes by Data Mining
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. 333-350.
summary The paper which is proposed here will introduce an ongoing research project aiming to research data mining as a methodology of knowledge discovery in urban feature analysis. To address the increasing multi-dimensional and relational complexity of urban environments requires a multidisciplinary approach to urban analysis. This research is an attempt to establish a link between knowledge discovery methodologies and automated urban feature analysis. Therefore, in the scope of this research we apply data mining methodologies for urban analysis. Data mining is defined as to extract important patterns and trends from raw data (Witten and Frank, 2005). When applied to discover relationships between urban attributes, data mining can constitute a methodology for the analysis of multi-dimensional relational complexity of urban environments (Gil, Montenegro, Beirao and Duarte, 2009) The theoretical motivation of the research is derived by the lack of explanatory urban knowledge which is an issue since 1970’s in the area of urban research. This situation is mostly associated with deductive methods of analysis. The analysis of urban system from the perspective of few interrelated factors, without considering the multi-dimensionality of the system in a deductive fashion was not been explanatory enough. (Jacobs, 1961, Lefebvre, 1970 Harvey, 1973) To address the multi-dimensional and relational complexity of urban environments requires the consideration of diverse spatial, social, economic, cultural, morphological, environmental, political etc. features of urban entities. The main claim is that, in urban analysis, there is a need to advance from traditional one dimensional (Marshall, 2004) description and classification of urban forms (e.g. Land-use maps, Density maps) to the consideration of the simultaneous multi-dimensionality of urban systems. For this purpose, this research proposes a methodology consisting of the application of data mining as a knowledge discovery method into a GIS based conceptual urban database built out of official real data of Beyoglu. Generally, the proposed methodology is a framework for representing and analyzing urban entities represented as objects with properties (attributes). It concerns the formulation of an urban entity’s database based on both available and non-available (constructed from available data) data, and then data mining of spatial and non-spatial attributes of the urban entities. Location or position is the primary reference basis for the data that is describing urban entities. Urban entities are; building floors, buildings, building blocks, streets, geographically defined districts and neighborhoods etc. Urban attributes are district properties of locations (such as land-use, land value, slope, view and so forth) that change from one location to another. Every basic urban entity is unique in terms of its attributes. All the available qualitative and quantitative attributes that is relavant (in the mind of the analyst) and appropriate for encoding, can be coded inside the computer representation of the basic urban entity. Our methodology is applied by using the real and official, the most complex, complete and up-to-dataset of Beyoglu (a historical neighborhood of Istanbul) that is provided by the Istanbul Metropolitan Municipality (IBB). Basically, in our research, data mining in the context of urban data is introduced as a computer based, data-driven, context-specific approach for supporting analysis of urban systems without relying on any existing theories. Data mining in the context of urban data; • Can help in the design process by providing site-specific insight through deeper understanding of urban data. • Can produce results that can assist architects and urban planners at design, policy and strategy levels. • Can constitute a robust scientific base for rule definition in urban simulation applications such as urban growth prediction systems, land-use simulation models etc. In the paper, firstly we will present the framework of our research with an emphasis on its theoretical background. Afterwards we will introduce our methodology in detail and finally we will present some of important results of data mining analysis processed in Rapid Miner open-source software. Specifically, our research define a general framework for knowledge discovery in urban feature analysis and enable the usage of GIS and data mining as complementary applications in urban feature analysis. Acknowledgments I would like to thank to Nuffic, the Netherlands Organization for International Cooperation in Higher Education, for funding of this research. I would like to thank Ceyhun Burak Akgul for his support in Data Mining and to H. Serdar Kaya for his support in GIS.
keywords urban feature analysis, data mining, urban database, urban complexity, GIS
series CAAD Futures
email
last changed 2012/02/11 19:21

_id 2004_515
id 2004_515
authors Tsou, J-Y., Lam, S., Jie, H. and Yucai, X.
year 2004
title Performance Based Planning for High Density Urban Habitation
source Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 515-522
doi https://doi.org/10.52842/conf.ecaade.2004.515
summary In Hong Kong, about 22% of the total territory‘s area can be classified as built-up area and potential development area. Only 6% of this area is allocated to district and local open space for the 6.8 million populations, i.e. 2m2 per person. Sensible planning of the limited area to enhance the livability and environmental quality hence become a challenging issue for quality urban living of the mass population. However, considering the dynamic relationship of the different performance criteria in the hyper-dense urban environment, one needs to assess various environmental criteria to carry out a balanced planning. Meanwhile, effective tools to evaluate and manage the inter-relationship of these criteria, or indexes for integrated issues indication are not readily available that a reasonable planning is not always easy to achieve. In this paper, the „openness ratio“ concept is introduced for open space planning to provide an integrated index for early stage of planning and design. The new index is expected to provide a comprehensive rating system in considering the environmental performance of open area. It helps to highlight the potential problems in planning or site layout and support the integrated thinking of the four key components: visual sensitivity, urban wind, urban noise and solar heat gain. The concept has shown to be feasible on simple massing study which is applicable in the preliminary planning stage.
keywords Design Process; Performance Simulation; Design Methodology; Urban Planning
series eCAADe
email
last changed 2022/06/07 07:57

_id 2004_553
id 2004_553
authors Wojtowicz, J., Shakarchi, A. and Takeyama, M.
year 2004
title dWall – Case of VDS Baghdad
source Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 553-557
doi https://doi.org/10.52842/conf.ecaade.2004.553
summary Virtual Design Studio students and teachers of architecture in Canada, Japan and United Arab Emirates worked on the central area of University of Baghdad and examined its main square by proposing designs ideas and projects while sharing dynamic web portal. The narrative aspect of the digital media redefines the nature of design practice by making the creative process more democratic and transparent. Communicating design progress across temporal and geographic borders we can publish it instantly and make design accessible at different stages of its development for the benefit of distant collaborators, as well as general public. Baghdad remains site of traumatic conflict. Approaching aftermath of this war, creates unique opportunity to challenge the role of students of design. Among issues raised by this studio were: While apart - we will share and design for the betterment of the future condition of man people. We will consider not only possible futures, but also importance of the tradition while constructing our proposals in hope for both peace and democracy. However, the ongoing Globalization patterns are subject to the growing reassessment by many. What is the role of the central square in the campus of University of Baghdad in the XXI century? How can architecture and new media contribute to the peace making under such a circumstance as Iraq is facing at present? These were fundamental questions that the students needed to deal with. This paper presents the dynamic collaborative environment as well as diverse Digital Democracy Wall projects formulated in this distributed situation.
keywords Virtual Design Studio; VDS; Baghdad; Architecture; Democracy
series eCAADe
last changed 2022/06/07 07:57

_id acadia04_282
id acadia04_282
authors Anders, Peter
year 2004
title Arch-OS: An Implementation of Cybrid Strategies
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, 282-293
doi https://doi.org/10.52842/conf.acadia.2004.282
summary A review of the literature on Intelligent Buildings suggests an ideal of a building as an autonomous system that controls its internal and external environments. The model, whose origin lies with early models of artificial intelligence, effectively treats the building as a slave to human needs, and appears to invest more intelligence in the building than in its occupants. This paper proposes that automated environments be understood as extensions of human sense and awareness. It describes an operating system, Arch-OS, that exemplifies this approach by increasing building occupants’ consciousness of their environment.
keywords Cybrid, Mixed Reality, Responsive Environment, Planetary Collegium
series ACADIA
email
last changed 2022/06/07 07:54

_id caadria2017_182
id caadria2017_182
authors Austin, Matthew
year 2017
title The Other Digital - What is the Glitch in Architecture?
source P. Janssen, P. Loh, A. Raonic, M. A. Schnabel (eds.), Protocols, Flows, and Glitches - Proceedings of the 22nd CAADRIA Conference, Xi'an Jiaotong-Liverpool University, Suzhou, China, 5-8 April 2017, pp. 551-559
doi https://doi.org/10.52842/conf.caadria.2017.551
summary This paper will discuss and investigate the issues with the concept of 'glitch' in architecture. There are currently two definitions that sit in a symbiotic relationship with each other; Moradi's (2004) and Menkman's (2011). This paper will explore the implications of these two approaches, while investigating the possibility of a third, unique definition (the encoded transform), and what effect they have on the possibility for a 'glitch architecture'. The paper will then focus on the glitches' capacity to be disruptive within the design process. In the context of architecture, it has been previously argued that the inclusion of glitches within a design process can easily create a process that does not 'converge' to a desired design outcome, but instead shifts haphazardly within a set of family resemblances (Austin & Perin 2015). Further to this, it will be revealed that this 'divergent' quality of glitches is due to the encoded nature of architectural production.
keywords Glitch aesthetics; Theory; Algorithmic Design; Process.
series CAADRIA
email
last changed 2022/06/07 07:54

_id acadia04_088
id acadia04_088
authors Bechthold, Martin
year 2004
title Digital Design and Fabrication of Surface Structures
source Fabrication: Examining the Digital Practice of Architecture [Proceedings of the 23rd Annual Conference of the Association for Computer Aidd 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, 88-99
doi https://doi.org/10.52842/conf.acadia.2004.088
summary This paper presents a study in digital design and manufacturing of shells, which are material-efficient systems that generate their load-bearing capacity through curvature. Their complex shapes are chal­lenging to build, and the few current shell projects employ the same shape repetitively in order to reduce the cost of concrete formwork. Can digital design and manufacturing technology make these systems suitable for the needs of the 21st century? The research developed new digitally-driven fabrication processes for Wood-Foam Sandwich Shells and Ferrocement-Concrete Sandwich Shells. These are partially pre-fabricated in order to allow for the application of Computer-Numerically Controlled (CNC) technology. Sandwich systems offer advantages for the digitally-enabled construction of shells, while at the same time improving their structural and thermal performance. The research defines design and manufacturing processes that reduce the need for repetition in order to save costs. Wood-Foam Sandwich shells are made by laminating wood-strips over a CNC-milled foam mold that eventually becomes the structural sandwich core. For Ferrocement-Concrete sandwich shells, a two-stage process is presented: pre-fabricated ferrocement panels become the permanent formwork for a cast-in-place concrete shell. The design and engineering process is facilitated through the use of parametric solid modeling envi­ronments. Modeling macros and integrated Finite-Element Analysis tools streamline the design process. Accuracy in fabrication is maintained by using CNC techniques for the majority of the shaping processes. The digital design and manufacturing parameters for each process are verified through design and fabrication studies that include prototypes, mockups and physical scale models.
keywords Shell, Pre-Fabrication, Prototype, Custom-Manufacturing, Simulation
series ACADIA
email
last changed 2022/06/07 07:54

_id acadia04_186
id acadia04_186
authors Bell, Bradley
year 2004
title Digital Tectonics: Structural Patterning of Surface Morphology
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, 186-201
doi https://doi.org/10.52842/conf.acadia.2004.186
summary The computer in architectural design has shifted from its role as a merely representational device to that of a tool for instrumentalized simulation and fabrication. The desire to make buildings look like a rendering, or to produce photo-realistic images and walkthroughs has given way to an opening of the potentials of software to assist the designer with managing complex geometries, parametric organizational diagrams, structural analysis, and integrated building systems. Simulation has become the means by which virtual space becomes more than just a mirror of reality. It becomes the space within which different potential realities can be tested and evaluated before they are materially implemented. In architecture, information derived from material constraints to site conditions can be constantly fed into the computer models to provide an accurate update, which in turn introduces feedback into the overall design, and change can then be registered in the detail.
keywords surface, patterns, structure, CAD/CAM, fabrication
series ACADIA
email
last changed 2022/06/07 07:54

_id acadia04_014
id acadia04_014
authors Burry, Mark
year 2004
title THE SAGRADA FAMíLIA - WEST TRANSEPT ROSE WINDOW, A RAPID PROTOTYPE
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, 14-19
doi https://doi.org/10.52842/conf.acadia.2004.014
summary The recently completed design and construction in a little over twelve months of the west transept rose window (Passion Façade) of Antoni Gaudí’s unfinished major work and Barcelona icon, the Sagrada Família church, is a notable example of ‘lean construction’. The processes involved include traditional stone masonry, actual employment of the traits discussed in Evan’s ‘The Projective Cast’, and semi-automated construction methods.
series ACADIA
type normal paper
last changed 2022/06/07 07:54

_id acadia04_150
id acadia04_150
authors Clarke, Cory
year 2004
title The Siren's Call
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, 150-161
doi https://doi.org/10.52842/conf.acadia.2004.150
summary This paper presents an account of our research and development of processes providing seamless transition from design to fabrication. The narrative of our design, development, and prototyping experi¬ments spans seven years, including our current project, the Trusset software/structural system. Trusset is a combined building system and agent-based software design tool. The building system is based on a differential space-truss designed for fabrication entirely with computer numerically controlled (CNC) linear cutting devices, such as laser cut¬ters or three-axis mills. The software component is a set of agent-based design tools for developing surfaces and envelopes formally suitable to be built using the space-truss structure. Developed in parallel, the soft¬ware and building components combine within the Trusset system to provide a seamless pipeline from design to fabrication and assembly. The story of the development of software components and structural system, leading to the Trusset, act as a means of discussing the larger issues framing the research: the potential pitfalls and benefits of design and fabrication integration via the computer.
keywords Fabrication, Space-truss, Structure
series ACADIA
email
last changed 2022/06/07 07:56

_id acadia04_244
id acadia04_244
authors Daubmann, Karl
year 2004
title Teaching Digital Fabrication through Design
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, 244-255
doi https://doi.org/10.52842/conf.acadia.2004.244
summary This paper explains the development of a digital fabrication graduate seminar that has evolved over four semesters. The class attempts to teach at various levels between ‘how to’ considerations of learning hardware and software, while exploring a deeper understanding of the technological implications on design and digital fabrication. At the heart of the course is the belief that the limitations of hardware, software, and materials can be viewed as opportunities during the making of any artifact. A number of teaching models have been employed over the four semesters that include short, abstract, directed mini-projects, which teach one skill to the opposite extreme that develops longer, open-ended research / design projects focused on a technology or technique. The products of the class are used to compare the benefits and deficiencies of various pedagogies. The work is also used to further define the desires of the course related to strategies for materials and making.
keywords Digital fabrication, design research, craft
series ACADIA
email
last changed 2022/06/07 07:55

_id acadia04_020
id acadia04_020
authors Eastman, Charles
year 2004
title New Methods of Architecture and Building
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, 20-27
doi https://doi.org/10.52842/conf.acadia.2004.020
summary Three conditions exist that are likely to lead to significant restructuringof the construction industry. These are (1): the recognition that traditional contracting practices are inefficient and costly to the client, (2) the growing availability of information-rich 3D parametric modeling, and (3) the strong interest in integrating the issues of design and fabrication. Some aspects of these conditions are examined using two examples: parametric design and integration in steel structural design, and in fabrication-level modeling of precast concrete. The implications of these changes are explored.
series ACADIA
last changed 2022/06/07 07:55

_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

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