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	acadia03_011
id	acadia03_011
authors	d’Estrée Sterk, Tristan
year	2003
title	Using Actuated Tensegrity Structures to Produce a Responsive Architecture
doi	https://doi.org/10.52842/conf.acadia.2003.085
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 85-93
summary	The major theoretical roots of responsive architecture lie within the work of Nicholas Negroponte, and its most inspiring realization, to date, is found in the work of dECOi Architects. The work of NOX, and Diller & Scofidio provide two other built examples of responsive architectures. Each of these works is impressive within its own right. However, all of them have their shortcomings, suggesting that several possibilities for alternative visions still exist. While Negroponte’s work identifies the characteristics of a responsive architecture, it does not propose a model that is suitable for implementation. On the other hand, the work of dECOi architects does not address the technical needs of a building envelope designed for real world conditions of weather and structural load. Diller & Scofidio’s work, also does not have a functional envelope, and NOX’s work lacks physical responsiveness, favoring a palate of virtual responses instead.This paper, after examining the four specific precedents of Negroponte, dECOi, Diller & Scofidio, and NOX, will examine how a fifth precedent—that of Buckminster Fuller’s model of tensegrity structures—may be applied. The paper will propose that by actuating a tensegrity structure a responsive architectural envelope that addresses real world weather and structural loading conditions becomes feasible.
series	ACADIA
type	normal paper
email
more	admin
last changed	2022/06/07 07:55

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

_id	caadria2003_b4-1
id	caadria2003_b4-1
authors	Kuo, Chung-Jen
year	2003
title	Spatial Analysis of Chinese Garden Designs with Machine Learning
doi	https://doi.org/10.52842/conf.caadria.2003.541
source	CAADRIA 2003 [Proceedings of the 8th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 974-9584-13-9] Bangkok Thailand 18-20 October 2003, pp. 541-552
summary	This research intends to propose a scheme for analyzing Chinese Garden Design by incorporating spatial theory, data mining, concept of object, and network-like data structure. Design elements of Chinese garden are placed in a network according to the existing gardens according to spatial theory. Collected networks are then divided into pair of elements connected by their relationship and stored in a database. Later, data mining is applied to attain patterns from the node-and-relationship pairs. Meanwhile, the elements of the same level can be classified and data grouping can be done by the implementation itself. Thru this research, we can gain insight upon the spatial information and relationship between elements of Chinese garden designs. The result is a set of more concise and structural descriptions, which reveals the rhythm behind the Chinese garden design and can be a great pedagogical aid.
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2003_b6-1
id	caadria2003_b6-1
authors	Howe, A.S., Kang, P. and Nasari, Omid
year	2003
title	Digiosk Digital Design to Robotic Deployment in Two Months
doi	https://doi.org/10.52842/conf.caadria.2003.811
source	CAADRIA 2003 [Proceedings of the 8th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 974-9584-13-9] Bangkok Thailand 18-20 October 2003, pp. 811-826
summary	In this paper, we discuss Kit-of-parts Theory and how it applies to the design, manufacture, and operation of a small robotic deployable demonstration structure called the Digiosk (Howe, 2001). "Kit-of-parts Theory" refers to the study and application of objectoriented building techniques, where building components are predesigned / pre-engineered / pre-fabricated for inclusion in joint-based (linear element), panel-based (planar element), module-based (solid element), and deployable (time element) construction systems. The Digiosk is an exposition display kiosk that was designed and manufactured digitally, and brought from concept to robotic functionality in a short period of time. Using kinematic mechanisms the cylinder opens up and deploys into a 2.7m cubical display booth complete with integral power and network connections. The kiosk was designed using a solid modeler, from which data was extracted to drive digital manufacturing processes. Owing to the well-developed understanding of Kit-of-parts Theory and the new "kinematic architecture" principles, the paperless process yielded a working prototype only eight weeks after initial conceptualization. The paper concludes with a discussion of how these concepts can be applied to large-scale projects and design processes.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	acadia03_035
id	acadia03_035
authors	Mahalingam, Ganapathy
year	2003
title	Representing Architectural Design Using a Connections-Based Paradigm
doi	https://doi.org/10.52842/conf.acadia.2003.269
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 269-277
summary	Any making, including a work of architecture, is synthetic in nature and is made by making connections. To base the core of a computational representation of architectural design on connections is to base it on the very core of making. The articulation of the core of architecture, its architectonics, should be based on articulating its connections. This paper probes how connections can serve to represent architectural design. A paradigm consists of a core cluster of concepts that, for a time period, provides a framework to articulate the issues and problems facing a field and to generate solutions. This paper offers a connections-based paradigm to represent architectural design computationally. A number of connections-based strategies for the representation of architectural design have emerged. Modeling frameworks that have been identified include dendograms, bipartite graphs, adjacency graphs, plan graphs, planar graphs, Hasse diagrams, Boolean lattices, and Bayesian networks. These modeling frameworks have enabled the representation of many aspects of architectural design. Is it possible to extract a uniform modeling framework from all these frameworks that enables the computation of architectural design in all its aspects? Using biological analogies, will an integration of these modeling frameworks provide the ‘molecular’ structure of a ‘DNA’ that makes up the architectural ‘genome’? This paper will attempt to answer these questions.
series	ACADIA
email
last changed	2022/06/07 07:59

_id	acadia16_140
id	acadia16_140
authors	Nejur, Andrei; Steinfeld, Kyle
year	2016
title	Ivy: Bringing a Weighted-Mesh Representations to Bear on Generative Architectural Design Applications
doi	https://doi.org/10.52842/conf.acadia.2016.140
source	ACADIA // 2016: POSTHUMAN FRONTIERS: Data, Designers, and Cognitive Machines [Proceedings of the 36th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-77095-5] Ann Arbor 27-29 October, 2016, pp. 140-151
summary	Mesh segmentation has become an important and well-researched topic in computational geometry in recent years (Agathos et al. 2008). As a result, a number of new approaches have been developed that have led to innovations in a diverse set of problems in computer graphics (CG) (Sharmir 2008). Specifically, a range of effective methods for the division of a mesh have recently been proposed, including by K-means (Shlafman et al. 2002), graph cuts (Golovinskiy and Funkhouser 2008; Katz and Tal 2003), hierarchical clustering (Garland et al. 2001; Gelfand and Guibas 2004; Golovinskiy and Funkhouser 2008), primitive fitting (Athene et al. 2004), random walks (Lai et al.), core extraction (Katz et al.) tubular multi-scale analysis (Mortara et al. 2004), spectral clustering (Liu and Zhang 2004), and critical point analysis (Lin et al. 20070, all of which depend upon a weighted graph representation, typically the dual of a given mesh (Sharmir 2008). While these approaches have been proven effective within the narrowly defined domains of application for which they have been developed (Chen 2009), they have not been brought to bear on wider classes of problems in fields outside of CG, specifically on problems relevant to generative architectural design. Given the widespread use of meshes and the utility of segmentation in GAD, by surveying the relevant and recently matured approaches to mesh segmentation in CG that share a common representation of the mesh dual, this paper identifies and takes steps to address a heretofore unrealized transfer of technology that would resolve a missed opportunity for both subject areas. Meshes are often employed by architectural designers for purposes that are distinct from and present a unique set of requirements in relation to similar applications that have enjoyed more focused study in computer science. This paper presents a survey of similar applications, including thin-sheet fabrication (Mitani and Suzuki 2004), rendering optimization (Garland et al. 2001), 3D mesh compression (Taubin et al. 1998), morphin (Shapira et al. 2008) and mesh simplification (Kalvin and Taylor 1996), and distinguish the requirements of these applications from those presented by GAD, including non-refinement in advance of the constraining of mesh geometry to planar-quad faces, and the ability to address a diversity of mesh features that may or may not be preserved. Following this survey of existing approaches and unmet needs, the authors assert that if a generalized framework for working with graph representations of meshes is developed, allowing for the interactive adjustment of edge weights, then the recent developments in mesh segmentation may be better brought to bear on GAD problems. This paper presents work toward the development of just such a framework, implemented as a plug-in for the visual programming environment Grasshopper.
keywords	tool-building, design simulation, fabrication, computation, megalith
series	ACADIA
type	paper
email
last changed	2022/06/07 07:58

_id	diss_anders
id	diss_anders
authors	Anders, P.
year	2003
title	A Procedural Model for Integrating Physical and Cyberspaces in Architecture
source	Doctoral dissertation, University of Plymouth, Plymouth, U.K
summary	This dissertation articulates opportunities offered by architectural computation, in particular the digital simulation of space known as virtual reality (VR) and its networked, social variant cyberspace. Research suggests that environments that hybridize technologies call for a conception of space as information, i.e. space is both a product of and tool for cognition. The thesis proposes a model whereby architecture can employ this concept of space in creating hybrids that integrate physical and cyberspaces.The dissertation presents important developments in architectural computation that disclose concepts and values that contrast with orthodox practice. Virtual reality and cyberspace, the foci of this inquiry, are seen to embody the more problematic aspects of these developments. They also raise a question of redundancy: If a simulation is good enough, do we still need to build? This question, raised early in the 1990's, is explored through a thought experiment - the Library Paradox - which is assessed and critiqued for its idealistic premises. Still, as technology matures and simulations become more realistic the challenge posed by VR/cyberspace to architecture only becomes more pressing. If the case for virtual idealism seems only to be strengthened by technological and cultural trends, it would seem that a virtual architecture should have been well established in the decade since its introduction.Yet a history of the virtual idealist argument discloses the many difficulties faced by virtual architects. These include differences between idealist and professional practitioners, the failure of technology to achieve its proponents' claims, and confusion over the meaning of virtual architecture among both architects and clients. However, the dissertation also cites the success of virtual architecture in other fields - Human Computer Interface design, digital games, and Computer Supported Collaborative Work - and notes that their adoption of space derives from practice within each discipline. It then proposes that the matter of VR/cyberspace be addressed from within the practice of architecture, a strategy meant to balance the theoretical/academic inclination of previous efforts in this field.The dissertation pursues an assessment that reveals latent, accepted virtualities in design methodologies, instrumentation, and the notations of architectural practices. Of special importance is a spatial database that now pervades the design and construction processes. The unity of this database, effectively a project's cyberspace, and its material counterpart is the subject of the remainder of the dissertation. Such compositions of physical and cyberspaces are herein called cybrids. The dissertation examines current technologies that cybridize architecture and information technology, and proposes their integration within cybrid wholes. The concept of cybrids is articulated in seven principles that are applied in a case study for the design for the Planetary Collegium. The project is presented and critiqued on the basis of these seven principles. The dissertation concludes with a discussion of possible effects of cybrids upon architecture and contemporary culture.
series	thesis:PhD
email
last changed	2005/09/09 12:58

_id	sigradi2003_093
id	sigradi2003_093
authors	Banchini, Guillermo andMoliné, Aníbal
year	2003
title	Seminario: Exploración de Enfoques y Técnicas Digitales aplicadas al Proyecto (Seminar: Exploration de Digital Aproaches and Techniques applied to the Project)
source	SIGraDi 2003 - [Proceedings of the 7th Iberoamerican Congress of Digital Graphics] Rosario Argentina 5-7 november 2003
summary	This paper explains the experience performed by a group of architecture students during a short term worksop, trying to explore the potentials of new approaches and digital technics applied to urban and architectural design. The main purposes were: the inclusion of objetive information and quantitative data of material significance in order to assist the generation and structuring of the design process. The notions of "diagram", "field conditions", "contextual logistic" and "animation" were the conceptual categories employed to approach the dinamic conditions and time related logics as critical aspects of the flexibility associated with material organizations.
keywords	Projects, approaches, explorations, digital, technics.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	sigradi2003_058
id	sigradi2003_058
authors	Christakou, Evangelos Dimitrios
year	2003
title	Simulação computacional da iluminação natural aplicada ao projeto do edifício (Computer simulation of natural ilumination applied to the building design)
source	SIGraDi 2003 - [Proceedings of the 7th Iberoamerican Congress of Digital Graphics] Rosario Argentina 5-7 november 2003
summary	The object of that study is the state of the art in computer simulation, when applied to the natural illumination in buildings, in Brasília (15°52 ' south), tropical climate of altitude, hot and dry, with great available iluminance during the year. The used methodology bases on the quantitative evaluation of the readiness of natural light in the rooms of the Hospital Sarah Kubistchek, using the software Lightscape and soon after comparing the results to the Brazilian norms. The objective seeks to make possible your use by architects in the day by day of projecting the space of the building.
series	SIGRADI
email
last changed	2016/03/10 09:49

_id	sigradi2003_113
id	sigradi2003_113
authors	Gallo, Marisa
year	2003
title	Uno
source	SIGraDi 2003 - [Proceedings of the 7th Iberoamerican Congress of Digital Graphics] Rosario Argentina 5-7 november 2003
summary	The technological tools applied to the field of the art allow me to fulfill the projects and searches that were formulated by the historical vanguard: to materialize the simulation of movement, of the virtual, of the simultaneous, of the permanently mutant thing. And also to sustain the values of contemporary art as well as to operate from a notorious devaluation of the referent and, at the same time, with a limitless mimetic freedom to accentuate the crossing of opposite disciplines, which was previously defined by collages, assemblages, photomontages. In this way, I redefine these crossings from images where the certainties on the real thing/that represented/that done/that simulated disappear.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	cf2003_m_094
id	cf2003_m_094
authors	GARCIA, Renato
year	2003
title	Feeling the Heat - Exploring the Impact of Fire in Architectural Structures though Multimodal Interaction
source	Digital Design - Research and Practice [Proceedings of the 10th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-1210-1] Tainan (Taiwan) 13–15 October 2003, pp. 383-392
summary	This paper discusses the background and basis behind a computer program developed by the author that incorporates a haptic feedback and audio interface into a visually interactive simulation of the structural response of buildings to fire. Structures are limited to steel in particular. The audio interface makes use of sonification and affective techniques while the haptic interface takes advantage of force feedback technology. The simulation is also meant to be holistic, qualitative, intuitive, temporal yet interactive. The primary innovation in this fire simulation system is the incorporation of audio and haptic feedback interaction into the usual visual interface.
keywords	computing, force feedback, HCI, interface, sonification
series	CAAD Futures
last changed	2003/09/22 12:21

_id	diss_2003
id	diss_2003
authors	Gorczyca, Adam
year	2003
title	Interaction of the design methods and the contemporary computer techniques
source	Faculty of Architecture, Warsaw University of Technology
summary	The thesis researches a bilateral relations between computer techniques and methods of architectural design. It represents a holistic attitude because of a multithread analysis in the field of the theory of design, a new hard- and software used by architects, and a design practice. Thesis: Contemporary computer science development at the end of the twentieth century pushed architects to use hard- and software as tools, which became an active support (more than just CAAD). It enabled to widen the scope of a form-properties research and a generation of solutions impossible to achieve before, by using traditional methods and tools. This situation leads to new, unpredictable possibilities of architectural research and design. Objectives: 1. Definition of the latest trends in computer technologies applied in architectural offices. 2. Presentation of some practical consequencies of application of those technologies in design and construction. 3. Separation of new design methods caused by use of digital tools. 4. A simplified taxonomy of the methods above, with characteristic features. 5. A research in practical application of digital tools in Polish and foreign offices, as well as at the WUT Faculty of Architecture. The subject of the work: The thesis constitutes of five chapters. The first chapter is an introduction, where the range of work is presented in the context of place, time and the research made. The following chapters research three aspects of CAAD: (1) hardware and software, (2) new definition of architecture, which is a result of application of the digital tools, (3) practical problems connected with the use of computer techniques. The second chapter describes the new technologies in use –Virtual Reality (incl. VRD, CAVE’s, Data Gloves, motion-capture), Rapid prototyping (incl. holographic printers, 3D scanners, routers, milling-machines), new types of interfaces (e.g. xWorlds, InfoSpace, Flock of birds), etc. The third chapter is a theoretical one. It presents three types of changes in design methods, which can be classified, judging by results, in architecture of: (a) in-formation (b) de-formation and (c) cyberspace. All the mentioned applications of a digital technology cause redefinition of the range of the architects’ profession. The fourth chapter is concentrated on the application and utilization of technology. It is a detailed analysis of chosen buildings (characteristic examples) and design methods used by some avant-garde and well-known practitioners and visioners of architecture (Eisenman, Gehry, Spuybroek, etc.). It also presents statistics, where the influence of digital tools on the way of working (efficiency, productivity, use of tools) is expressed numerically. A synthesis summarizes the relation between architects and the new digital tools in some aspects: hard- and software, social changes, ergonomics, methodics, linguistic/symbolic and architectural. The mentioned ranges of interaction constitute the proof of the thesis.
series	thesis:PhD
email
last changed	2003/09/17 18:20

_id	acadia03_045
id	acadia03_045
authors	Hoon, Michael and Kehoe, Michael
year	2003
title	Enhancing Architectural Communication with Gaming Engines
doi	https://doi.org/10.52842/conf.acadia.2003.349
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 349-355
summary	This paper makes a case for exploring the feasibility of utilizing the advanced graphics and sound systems of contemporary gaming engines to promote architecturally relevant work. Gaming engines, while developed largely for the PC entertainment industry, have vast potential for application in architecture. This paper will explore the depth of this potential and will outline work demonstrating the advantages and the limitations of this technology. The supporting research and observations examine the technology and reveal its potential usefulness as an instructional or depictive authoring tool. Game engines were selected that had appropriate graphical prowess, but were customizable as to allow the removal of game-specific features (to create a “professional” user interface). Projects were authored that expressed complex building details using the engine for visual depiction. The details, which included constructional components, structural assemblies, or simple design nuances, were modeled with 3D geometry and realistically textured and lighted. The game engine allowed one user or many remote simultaneous users in the virtual environment to interactively explore the presentation in real time. Scripts were developed to encourage end-users to interactively disassemble or reassemble building components as desired. Audile and/or text-based information regarding the assembly sequence were provided by exploiting the game interface features. Furthermore, interactive object scaling was provided to facilitate analysis of component relationships.
series	ACADIA
email
last changed	2022/06/07 07:50

_id	1404
id	1404
authors	Hosny, Samir Sadek
year	2003
title	BUIL-D-EX; A Knowledge-Based Expert System for the Diagnosis of Buildings Cracks
source	Scientific Bulletin, Faculty of Engineering, Ain Shams University, Vol. 38, No. 2, June 2003 - pp. 297-310
summary	Expert systems are computer systems developed to preserve the human expertise about specific domains in a well-structured form suitable for retrieval and manipulation by computers. They have been used in many fields of applications and proved to be beneficial. This paper addresses the role of Knowledge-based expert systems in building construction; particularly in the diagnostics and assessment of buildings' cracks. The paper presents BUIL-D-EX; a prototype for a Buildings’ Diagnostics Expert system intended to assist architects, structural engineers, contractors and even building owners in identifying and suggesting remedies to concrete and masonry surfaces' defects. The system identifies the kind of crack, states its most probable causes and its degree of danger, suggests a technical remedy and finally suggests several commercial names for materials to be used for curing the defect, and how to apply them. BUIL-D-EX offers complete explanations for all its questions to the users, as well as justifications for all its decisions and answers whenever needed.
keywords	Expert Systems, Diagnosis, Building Construction, Building Cracks, Backward chaining, Inference, Reasoning
series	journal paper
type	normal paper
email
last changed	2009/09/12 17:18

_id	ecaade2014_147
id	ecaade2014_147
authors	James Charlton and Markus Brune
year	2014
title	Towards a dynamic evacuation system: developing methodologies to simulate the evacuation capabilities of subway stations in response to a terrorist attack with CBRNE weapons
doi	https://doi.org/10.52842/conf.ecaade.2014.1.109
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 109-118
summary	Events in recent times have highlighted the vulnerability of underground public transportation to possible terrorist attacks. A key question therefore is how an evacuation can be accomplished from underground stations safely. The strategy “go up and take the nearest exit to the surface” might not be the best response. Evidence from the Daegu subway station fire in 2003, investigated by Tsujimoto (2003) and Jeon and Hong (2009) establish that smoke or toxic airborne substances from a terrorist attack tend to use the same direct routes used by the fleeing passengers and as result significant injuries or fatalities can occur. This study proposes the concept of a dynamic evacuation system which would guide subway users along safe routes. To test how this system may operate, the study discussed combines measurements from tracer gas experiments with climate measurements to establish how toxic agents spread in subway stations under certain conditions and combines these results with those from pedestrian simulations applied to calculate evacuation times for possible escape routes. By integrating the resulting dataset from these methods, an evidence base of how a dynamic evacuation system may work can start to form.
wos	WOS:000361384700010
keywords	Pedestrian simulation, subway climatology; cbrne; subway evacuation; tracer gas experiments
series	eCAADe
email
last changed	2022/06/07 07:52

_id	sigradi2006_e149b
id	sigradi2006_e149b
authors	Kendir, Elif
year	2006
title	Prêt-à-Construire – An Educational Inquiry into Computer Aided Fabrication
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 162-165
summary	This paper aims to show and discuss the relevance of developing necessary strategies for reintegrating the concept of fabrication into the architectural design process. The discussion will be partly based on the outcome of a graduate architectural design studio conducted in Spring semester 2002-2003. The graduate studio was part of a series of exploratory studies conducted on the nature of architectural design process transformed by information technologies. Preceded by studios investigating cognition and representation, this last studio focused on the concept of fabrication. The overarching aim of the studio series was to put CAD and CAM in context both within the actual architectural design process and within architectural education. The last of this series, which will be discussed within the frame of this paper, has specifically focused on CAM and the concept of fabrication in architecture. In accordance with the nature of a design studio, the research was more methodological than technical. The studio derived its main inspiration from the constructional templates used in dressmaking, which can be considered as an initial model for mass customization. In this context, the recladding of Le Corbusier’s Maison Domino was given as the main design problem, along with several methodological constraints. The main constraint was to develop the design idea through constructional drawings instead of representational ones. The students were asked to develop their volumetric ideas through digital 3D CAD models while working out structural solutions on a physical 1/50 model of Maison Domino. There was also a material constraint for the model, where only specified types of non-structural paper could be used. At this stage, origami provided the working model for adding structural strength to sheet materials. The final outcome included the explanation of different surface generation strategies and preliminary design proposals for their subcomponents. The paper will discuss both the utilized methodology and the final outcome along the lines of the issues raised during the studio sessions, some of which could be decisive in the putting into context of CAD – CAM in architectural design process. One such issue is mass customization, that is, the mass production of different specific elements with the help of CAM technologies. Another issue is “open source” design, indicating the possibility of a do-it-yourself architecture, where architecture is coded as information, and its code can be subject to change by different designers. The final key issue is the direct utilization of constructional drawings in the preliminary design phase as opposed to representational ones, which aimed at reminding the designer the final phase of fabrication right from the beginning. Finally, the paper will also point at the problems faced during the conduct of the studio and discuss those in the context of promoting CAM for architectural design and production in countries where there is no actual utilization of these technologies for these purposes yet.
keywords	Education; Fabrication; CAM
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	c5d7
authors	Kuffer, Monika
year	2003
title	Monitoring the Dynamics of Informal Settlements in Dar Es Salaam by Remote Sensing: Exploring the Use of Spot, Ers and Small Format Aerial Photography
source	CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary	Dar es Salaam is exemplary for cities in the developing world facing an enormous population growth. In the last decades, unplanned settlements have tremendously expanded, causing that around 70 percent of the urban dwellers are living now-a-days in these areas. Tools for monitoring such tremendous growth are relatively weak in developing countries, thus an effective satellite based monitoring system can provide a useful instrument for monitoring the dynamics of urban development. An investigation to asses the ability of extracting reliable information on the expansion and consolidation levels (density) of urban development of the city of Dar es Salaam from SPOT-HRV and ERS-SAR images is described. The use of SPOT and ERS should provide data that is complementary to data derived from the most recent aerial photography and from digital topographic maps. In a series of experiments various classification and fusion techniques are applied to the SPOT-HRV and ERS-SAR data to extract information on building density that is comparable to that obtained from the 1992 data. Ultimately, building density is estimated by linear and non-linear regression models on the basis of an one ha kernel and further aggregation is made to the level of informal settlements for a final analysis. In order to assess the reliability, use is made of several sample areas that are relatively stable over the study period, as well as, of data derived from small format aerial photography. The experiments show a high correlation between the density data derived from the satellite images and the test areas.
series	other
email
last changed	2003/03/11 20:39

_id	ec9c
authors	Kvan, Th., Wong, J.T.H. and Vera, A.H.
year	2003
title	THE CONTRIBUTION OF STRUCTURAL ACTIVITIES TO SUCCESSFUL DESIGN
source	International Journal of Computer Applications in Technology , 16:2/3, pp. 122-126
summary	Examining case studies in design teaching and their analysis; we identify the role of structural activities and other solution searching activities in design learning and problem solving. The case studies follow students working on the same problem under two conditions – one group is taught using traditional face-to-face teaching while the other group is additionally supported by a text-based web board. The design activities of two students were followed in each condition through a semester; followed by in-depth interviews at the end of semester. The results show that cases with above average design work involved more structural activities than the mediocre cases. It also showed that design problem dissections are more organized in the better cases. These successful cases engaged in textual expression of their design solutions. Computer tools for design should therefore support multiple representations of design work.
keywords	Structure Activity; Representation; Text; Models; Teaching; Learning
series	journal paper
type	normal paper
email
last changed	2004/09/24 14:39

_id	cf2003_m_032
id	cf2003_m_032
authors	LIN, Chieh-Jen and CHIU, Mao-Lin
year	2003
title	Smart Semantic Query of Design Information in a Case Library
source	Digital Design - Research and Practice [Proceedings of the 10th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-1210-1] Tainan (Taiwan) 13–15 October 2003, pp. 125-136
summary	This paper is aimed to establish a smart query mechanism based on the semantic relationship among design cases in a case library, Case Base for Architecture (CBA). A case is composed with three levels of design information: “general”, “analytical” and “recommendation”. The data mining technique is applied to analyse the case information of CBA and extract a list of keywords of design concepts and knowledge from the analytic information and recommendation. By clustering and ranking the semantic relations of those keywords on the strength of machine and addressing them to selected design cases, we can organise the semantic relations among cases. Based on the results, we build a primary query interface to help users to retrieve and inspire their associative reasoning for design thinking. The semantic query mechanism is presented and discussed.
keywords	associative reasoning, case-based reasoning, data mining, design case, semantic
series	CAAD Futures
email
last changed	2003/09/22 12:21

_id	ijac20031109
id	ijac20031109
authors	Liu, Yu-Tung; Shen-Kai, Tang
year	2003
title	Space, Place and Digital Media:Towards a Better Simulation of a City that has now Disappeared
source	International Journal of Architectural Computing vol. 1 - no. 1
summary	Digital media enable researchers and designers to derive better informed processes in solving problems of historical architectural restoration and virtual archaeology. However, recently insufficiencies have been found in the main technologies often applied in such techniques, such as 3D modeling, high-quality rendering and animation. Given these problems, this paper attempts to explore a digital reconstruction procedure for historical architecture and cities using 3D scanning, Virtual Reality cave technology and motion capture technology. This case study is based on a collaborative project in conjunction with the National Palace Museum, Taiwan, and the China Times, Taiwan.The five steps involved in this project include data collection and analysis, three-dimensional digital inferences, digital reconstruction of static and moving models, scenario dynamics (by integrating the two kinds of models), and visual-spatial immersion using a VR-cave representation. Finally, a preliminary digital reconstruction procedure is presented.
series	journal
email
more	http://www.multi-science.co.uk/ijac.htm
last changed	2007/03/04 07:08

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