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	ascaad2016_027
id	ascaad2016_027
authors	Cocho-Bermejo, Ana
year	2016
title	Time in Adaptable Architecture - Deployable emergency intelligent membrane
source	Parametricism Vs. Materialism: Evolution of Digital Technologies for Development [8th ASCAAD Conference Proceedings ISBN 978-0-9955691-0-2] London (United Kingdom) 7-8 November 2016, pp. 249-258
summary	The term "Parametricism" widespread mainly by Patrick Schumacher (Schumacher, 2008) is worthy of study. Developing the concept of Human Oriented Parametric Architecture, the need of implementing time as the lost parameter in current adaptive design techniques will be discussed. Morphogenetic processes ideas will be discussed through the principle of an adaptable membrane as a case study. A model implementing a unique Arduino[i] on the façade will control its patterns performance through an Artificial Neural Network that will understand the kind of scenario the building is in, activating a Genetic Algorithm that will optimize the insulation performance of the ETFE pillows. The system will work with a global behavior for façade pattern performance and with a local one for each pillow, giving the option of individual sun-shading control. Machine learning implementation will give the façade the possibility to learn from the efficacy of its decisions through time, eliminating the need of a general on-off behavior.
series	ASCAAD
email
last changed	2017/05/25 13:31

_id	sigradi2008_049
id	sigradi2008_049
authors	Benamy, Turkienicz ; Beck Mateus, Mayer Rosirene
year	2008
title	Computing And Manipulation In Design - A Pedagogical Experience Using Symmetry
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	The concept of symmetry has been usually restricted to bilateral symmetry, though in an extended sense it refers to any isometric transformation that maintains a certain shape invariant. Groups of operations such as translation, rotation, reflection and combinations of these originate patterns classified by modern mathematics as point groups, friezes and wallpapers (March and Steadman, 1974). This extended notion represents a tool for the recognition and reproduction of patterns, a primal aspect of the perception, comprehension and description of everything that we see. Another aspect of this process is the perception of shapes, primary and emergent. Primary shapes are the ones explicitly represented and emergent shapes are the ones implicit in the others (Gero and Yan, 1994). Some groups of shapes known as Semantic Shapes are especially meaningful in architecture, expressing visual features so as symmetry, rhythm, movement and balance. The extended understanding of the concept of symmetry might improve the development of cognitive abilities concerning the creation, recognition and meaning of forms and shapes, aspects of visual reasoning involved in the design process. This paper discusses the development of a pedagogical experience concerned with the application of the concept of symmetry in the creative generation of forms using computational tools and manipulation. The experience has been carried out since 1995 with 3rd year architectural design students. For the exploration of compositions based on symmetry operations with computational support we followed a method developed by Celani (2003) comprising the automatic generation and update of symmetry patterns using AutoCAD. The exercises with computational support were combined with other different exercises in each semester. The first approach combined the creation of two-dimensional patterns to their application and to their modeling into three-dimensions. The second approach combined the work with computational support with work with physical models and mirrors and the analysis of the created patterns. And the third approach combined the computational tasks with work with two-dimensional physical shapes and mirrors. The student’s work was analyzed under aspects such as Discretion/ Continuity –the creation of isolated groups of shapes or continuous overlapped patterns; Generation of Meta-Shapes –the emergence of new shapes from the geometrical relation between the generative shape and the structure of the symmetrical arrangement; Modes of Representation –the visual aspects of the generative shape such as color and shading; Visual Reasoning –the derivation of 3D compositions from 2D patterns by their progressive analysis and recognition; Conscious Interaction –the simultaneous creation and analysis of symmetry compositions, whether with computational support or with physical shapes and mirrors. The combined work with computational support and with physical models and mirrors enhanced the students understanding on the extended concept of symmetry. The conscious creation and analysis of the patterns also stimulated the student’s understanding over the different semantic possibilities involved in the exploration of forms and shapes in two or three dimensions. The method allowed the development of both syntactic and semantic aspects of visual reasoning, enhancing the students’ visual repertoire. This constitutes an important strategy in the building of the cognitive abilities used in the architectural design process.
keywords	Symmetry, Cognition, Computing, Visual reasoning, Design teaching
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	acadia08_300
id	acadia08_300
authors	Doumpioti, Christina
year	2008
title	Adaptive Growth of Fibre Composite Structures
source	Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 300-307
doi	https://doi.org/10.52842/conf.acadia.2008.300
summary	The core idea of this research is the incorporation of the morphogenetic principles found in natural systems in the generation of fibre-composite structures by exploiting, at the maximum, the intrinsic performative capacities of the material system in use. The intention is the integration of form, material, structure and program into a multi-performative system that will satisfy simultaneously several, even conflicting objectives, in order to achieve an optimal compromise. This process involves the combination and implementation of concepts and methods based on precedent studies in the field of biomimetics, as well as form-finding digital and physical experiments that inform a coherent design methodology, leading to a structural system able to be fabricated using cutting-edge technology.
keywords	Adaptation; Composite; Fiber; Integrative; Morphogenesis
series	ACADIA
last changed	2022/06/07 07:55

_id	b678
id	b678
authors	Loemker, Thorsten Michael
year	2008
title	Designing with machines
source	Proceedings of the Dresden International Symposium of Architecture 2005, Technische Universitaet Dresden, P. 225-229
summary	In 1845 Edgar Allan Poe wrote the poem “The Raven”. An act full of poetry, love, passion, mourning, melancholia and death. In his essay “The Theory of Composition” which was published in 1846 Poe proved that the poem is based on an accurate mathematical description. Not only in literature are structures present that are based on mathematics. In the work of famous musicians, artists or architects like Bach, Escher or Palladio it is evident that the beauty and clarity of their work as well as its traceability has often been reached through the use of intrinsic mathematic coherences. If suchlike structures could be described within architecture, their mathematical abstraction could supplement “The Theory of Composition” of a building. This research focuses on a basic approach to describe principles in architectural layout planning in the form of mathematical rules that will be executed by the use of a computer. Provided that “design” is in principle a combinatorial problem, i.e. a constraint-based search for an overall optimal solution of a design problem, an exemplary method will be described to solve those problems. Mathematical and syntactical difficulties that arise from the attempt to extract rules that relate to the process of building design will be pointed out. As a consequence for teachings it will be demonstrated which competences are needed in order to aid designing with machines.
series	other
type	normal paper
email
last changed	2008/10/13 14:20

_id	ddss2008-17
id	ddss2008-17
authors	Sun, Chengyu; Bauke de Vries and Qi Zhao
year	2008
title	Measure the Evacuees’ Preference on ArchitecturalCues by CAVE
source	H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary	An evacuees’ preference prediction function on architectural cues are described here as a crucial part of the evacuation model to simulate how the evacuees search the route to exit according to the architectural information in the public underground space. The model is developed to evaluate the egress design in the initial space design stage and to provide the existing compositive evacuation models a support on the usage of architectural information. First the over simplification on the architectural information in the existing evacuation models is discussed. Then a list of so-called architectural cues and the related evacuation model are introduced, in which the evacuees always egress to the seen or remembered architectural cue with the highest preference in every step. The emphasis of the paper is put on the analysis of the preference function including the CAVE-based conjoint analysis research method, the experiment design and implementation of the virtual drill, and the estimation of the parameters from the collected choices. The preference function for five architectural cue pairs, Doorway-Doorway, Stair-Stair, Exit- Exit, Doorway-Stair, Exit-Stair is built from the choice data of nearly one hundred Chinese subjects.
keywords	CAVE, evacuation, conjoint analysis
series	DDSS
last changed	2008/09/01 17:06

_id	ddss2008-33
id	ddss2008-33
authors	Charlton, James A.; Bob Giddings and Margaret Horne
year	2008
title	A survey of computer software for the urban designprocess
source	H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary	Urban design is concerned with the shape, the surface and the physical arrangement of all kinds of urban elements, the basic components that make up the built environment, at the level of buildings, spaces and human activities. It is also concerned with the non-visual aspects of the environment, such as noise, wind and temperature and humidity. The city square is a particular urban element which can take many forms and its geometrical relationships such as maximum dimensions, ratio of width to length and building height to length have been analysed for centuries (Alberti 1475), (Vitruvius 1550), (Sitte 1889), (Corbett 2004). Within the current urban design process there are increasing examples of three dimensional computer representations which allow the user to experience a visual sense of the geometry of city squares in an urban landscape. Computer-aided design and Virtual Reality technologies have recently contributed to this visual assessment, but there have been limited attempts at 3D computer representations which allow the user to experience a greater sense of the urban space. This paper will describe a survey of computer tools which could support a more holistic approach to urban design and which could be used to simulate a number of urban texture and urban quality aspects. It will provide a systematic overview of currently available software that could support the simulation of building density, height, colour and style as well as conditions relating to noise, shading, heat, natural and artificial light. It will describe a methodology for the selection and filtering of appropriate computer applications and offer an initial evaluation of these tools for the analysis and representation of the three-dimensional geometry, urban texture and urban quality of city centre spaces. The paper is structured to include an introduction to the design criteria relating to city centre spaces which underpins this research. Next the systematic review of computer software will be described, and selected tools will undergo initial evaluation. Finally conclusions will be drawn and areas for future research identified.
keywords	Urban design, Software identification, 3D modelling, Pedestrian modelling, Wind modelling, Noise mapping, Thermal comfort, VR Engine
series	DDSS
last changed	2008/09/01 17:06

_id	acadia08_134
id	acadia08_134
authors	Peters, Brady
year	2008
title	Copenhagen Elephant House: A Case Study of Digital Design Processes
source	Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 134-141
doi	https://doi.org/10.52842/conf.acadia.2008.134
summary	This paper outlines the digital design processes involved in the design and construction of the new Elephant House at Copenhagen Zoo. Early design concepts for the canopy were tested using physical sketch models. The geometric complexity of these early physical models led to the involvement of the Specialist Modelling Group and the use of the computer to digitally sketch 3D CAD models. After many studies, the complex form of the canopies was rationalised using torus geometry. A computer program was written to generate the canopy glazing and structure. This parametric system was developed to be a design tool, and was developed by an architectural designer working with the team. Through its use the team were able to explore more design options, and alter the design farther along in the design process; however, this generative tool was created largely as a CAD efficiency tool. Another series of computer programs were written to generate and populate a shading system based on environmental analysis. Unlike the computer program that generated the structure and glazing, this program was not developed to make the generation of complex geometric structures more efficient, but developed to explore computational approaches that would have been impossible without the computer. Most of the canopy’s design was communicated to fabricator through a geometry method statement, a method that has been proven to be effective in the past. The project completed in June 2008.
keywords	Complex Geometry; Computation; Design; Generative; Sustainability
series	ACADIA
last changed	2022/06/07 08:00

_id	acadia08_246
id	acadia08_246
authors	Zawidzki, Machi
year	2008
title	Implementation of Cellular Automata for Dynamic Shading of Building Facade
source	Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 246-255
doi	https://doi.org/10.52842/conf.acadia.2008.246
summary	Paper presents creative use of cellular automata (CA) in architecture, namely for dynamic shading of building facade. The abbreviation “CA” refers both to singular form “cellular automaton” and plural- “automata”. One of the most interesting “visual” quality of CA is abilty to create organic patterns which sometimes are very pleasing to human eye. These patterns seem to “live their own life” and “taming” them to perform purposeful actions is quiet challenging due to their computational irreducibility as shown in an example of possible practical application, but as a result, provides visual effects of unmatched intriguing complexity hard to achieve by means of artistic will, whim or chance. Although amazing qualities of CA astonish for many years, their practical (physical) applications are still very sparse if existing at all, besides “pretty pictures”. Four classes of CA “behavior” with conjunction to the problem of “pattern average grayness” was presented. Two classes of CA were analyzed: 2- color, 1- dimension, range- 1 (2C-1D-R1) and 2-color, 1- dimension, range- 2 (2C-1D-R2) for potential practical use. Problem of monotonic gradual change of average grayness as a function of sequence of initial conditions was discussed. Scheme of mechanical system realizing the idea of shading controlled by CA was proposed.
keywords	Cellular Automata; Lighting; Pattern; Robotics; Skin
series	ACADIA
last changed	2022/06/07 07:57

_id	cf2011_p109
id	cf2011_p109
authors	Abdelmohsen, Sherif; Lee Jinkook, Eastman Chuck
year	2011
title	Automated Cost Analysis of Concept Design BIM Models
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. 403-418.
summary	AUTOMATED COST ANALYSIS OF CONCEPT DESIGN BIM MODELS Interoperability: BIM models and cost models This paper introduces the automated cost analysis developed for the General Services Administration (GSA) and the analysis results of a case study involving a concept design courthouse BIM model. The purpose of this study is to investigate interoperability issues related to integrating design and analysis tools; specifically BIM models and cost models. Previous efforts to generate cost estimates from BIM models have focused on developing two necessary but disjoint processes: 1) extracting accurate quantity take off data from BIM models, and 2) manipulating cost analysis results to provide informative feedback. Some recent efforts involve developing detailed definitions, enhanced IFC-based formats and in-house standards for assemblies that encompass building models (e.g. US Corps of Engineers). Some commercial applications enhance the level of detail associated to BIM objects with assembly descriptions to produce lightweight BIM models that can be used by different applications for various purposes (e.g. Autodesk for design review, Navisworks for scheduling, Innovaya for visual estimating, etc.). This study suggests the integration of design and analysis tools by means of managing all building data in one shared repository accessible to multiple domains in the AEC industry (Eastman, 1999; Eastman et al., 2008; authors, 2010). Our approach aims at providing an integrated platform that incorporates a quantity take off extraction method from IFC models, a cost analysis model, and a comprehensive cost reporting scheme, using the Solibri Model Checker (SMC) development environment. Approach As part of the effort to improve the performance of federal buildings, GSA evaluates concept design alternatives based on their compliance with specific requirements, including cost analysis. Two basic challenges emerge in the process of automating cost analysis for BIM models: 1) At this early concept design stage, only minimal information is available to produce a reliable analysis, such as space names and areas, and building gross area, 2) design alternatives share a lot of programmatic requirements such as location, functional spaces and other data. It is thus crucial to integrate other factors that contribute to substantial cost differences such as perimeter, and exterior wall and roof areas. These are extracted from BIM models using IFC data and input through XML into the Parametric Cost Engineering System (PACES, 2010) software to generate cost analysis reports. PACES uses this limited dataset at a conceptual stage and RSMeans (2010) data to infer cost assemblies at different levels of detail. Functionalities Cost model import module The cost model import module has three main functionalities: generating the input dataset necessary for the cost model, performing a semantic mapping between building type specific names and name aggregation structures in PACES known as functional space areas (FSAs), and managing cost data external to the BIM model, such as location and construction duration. The module computes building data such as footprint, gross area, perimeter, external wall and roof area and building space areas. This data is generated through SMC in the form of an XML file and imported into PACES. Reporting module The reporting module uses the cost report generated by PACES to develop a comprehensive report in the form of an excel spreadsheet. This report consists of a systems-elemental estimate that shows the main systems of the building in terms of UniFormat categories, escalation, markups, overhead and conditions, a UniFormat Level III report, and a cost breakdown that provides a summary of material, equipment, labor and total costs. Building parameters are integrated in the report to provide insight on the variations among design alternatives.
keywords	building information modeling, interoperability, cost analysis, IFC
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	236c
id	236c
authors	Hamuy Pinto, Eduardo; Galaz Lorca, Mirtha
year	2008
title	Evaluación de Participación e Interacción en LMS MOODLE [Assessment of Participation and Interaction in LMS MOODLE]
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008, pp. 164-167.
summary	Learning Management Systems (LMS) embody spaces that combine Virtual Classrooms, learning communities, repositories of educational resources and communication devices. The use by faculty members and students, in a campus containing the schools of Architecture, Design and Geography, of Open Source LMS MOODLE, during the years 2005-2006, was assessed. An analysis of the Digital Vestiges, the metadata in the logs database, distinguished between the levels of informative and communicational interaction. The results draw attention to a trend, similar to previous measurements in Latin America, of more use of ICT educational resources for informational purposes than communicational interactions between teachers and students.
keywords	LMS, MOODLE, Meaningful Interactions
series	SIGRADI
type	normal paper
email
last changed	2016/03/10 09:53

_id	sigradi2008_081
id	sigradi2008_081
authors	Kirschner, Ursula
year	2008
title	Study of digital morphing tools during the design process - Application of freeware software and of tools in commercial products as well as their integration in AutoCAD
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	This research work examines methods of experimental designing with CAAD in a CAD laboratory with architecture students as the testing persons. Thereby the main focus is on the early phase of finding forms, in which different techniques with digital media are tried out in the didactic architectural design lessons. In these work have been traced the influences of the media employed on the design processes and combined the approaches of current CAAD research with aspects from classic design theory. For mathematical rules of proportion, atmospheric influence factors and analogy concepts in architecture, I have developed design methods which have been applied and verified in several series of seminars. (Kirschner, U.: 2000, Thesis, a CAAD supported architectural design teaching, Hamburg, school of arts). Previous experimental exercises showed that morphological sequences of modeling are effective sources for playful designing processes. In the current work these approaches are enhanced and supplemented by different morphological architectural concepts for creating shapes. For this purpose 2D based software like Morphit, Winmorph and other freeware were used. Whereas in the further development of this design technique we used 3D freeware morphing programs like zhu3D or Blender. The resulting morphological shapes were imported in CAD and refined. Ideally the morphing tool is integrated in the modeling environment of the standard software AutoCAD. A digital city model is the starting basis of the design process to guarantee the reference to the reality. The applied design didactic is predicated on the theories of Bernhard Hoesli. The act of designing viewed as „waiting for a good idea“ is, according to him, unteachable; students should, in contrast, learn to judge the „the force of an idea“. On the subject of morphology a form-generating method in the pre-design phase has been tested. Starting from urban-planning lines on an area map, two simple geometric initial images were produced which were merged by means of morphing software. Selected images from this film sequence were extruded with CAAD to produce solid models as sectional drawings. The high motivation of the students and the quality of the design results produced with these simple morphing techniques were the reason for the integration of the artistic and scientific software into the creative shape modeling process with the computer. The students learned in addition to the „bottom up “and „ top down” new design methods. In the presentation the properties and benefits of the morphing tools are presented in tables and are analyzed with regard to the architectural shape generating in an urban context. A catalogue of criteria with the following topics was developed: user friendliness, the ability of integrating the tools or as the case may be the import of data into a CAD environment, the artistic aspects in terms of the flexibility of shape generating as well as the evaluation of the aesthetic consideration of shapes.
keywords	Architectural design, freeware morphing software, AutoCAD
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	ecaade2008_108
id	ecaade2008_108
authors	Penttilä, Hannu; Elger, Dietrich
year	2008
title	New Professional Profiles for International Collaboration in Design and Construction
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 333-340
doi	https://doi.org/10.52842/conf.ecaade.2008.333
summary	This paper discusses the recent changes within the architectural profession: the growing demand for collaboration within design and construction and the recent transition to fully digitally enhanced design process. The aim of the paper is to stimulate the discussion within contemporary architectural profession. Profound discussions and re-evaluation is needed in the fields of design education, architecture related research as well as in current project practices. A proposed visionary profile of a collaboratively technical architectural education will be presented as the conclusion of the paper.
keywords	architectural profession, collaboration, communication, CAD, BIM
series	eCAADe
email
last changed	2022/06/07 08:00

_id	ecaade2008_065
id	ecaade2008_065
authors	Uddin, M. Saleh
year	2008
title	Simulation of Daylight in the Architecture of Louis I. Kahn: A Study of the Un-built Hurva Synagogue
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 727-734
doi	https://doi.org/10.52842/conf.ecaade.2008.727
summary	One of the most powerful aspects of Louis I. Kahn’s architectural space is his handling of natural light. Kahn believed that architecture began with the ‘making of a room’ and that ‘a room is not a room without natural light.’ Throughout his career, he explored bringing light into interiors in the most imaginative ways. Kahn used endless possibilities, from small devices to complex dome structures, to create a poetic and spiritual light inside buildings. The purpose of this paper is to present the theories and practices of natural light in architecture by Louis Kahn, who has deftly used it as a creative medium in his design of buildings. Starting from development of theories, this research focuses on how he implemented his theories into practice. As a case study, the Hurva Synagogue project is selected to analyze its unique lighting solutions. Many of Kahn’s previous concepts can be traced to the Hurva, making it an ideal project for lighting study. Since Hurva Synagogue is an un-built project, recent techniques of computer graphics is used to understand how daylight illuminates the interior in different times of the day and year in both still images and in 3D animations.
keywords	Louis I Kahn, Daylight Simulation, 3D Model, Animation
series	eCAADe
email
last changed	2022/06/07 07:57

_id	caadria2008_67_session6b_552
id	caadria2008_67_session6b_552
authors	Park, Hyoung-June
year	2008
title	Evolution + Bim: The Utilization of Building Information Modelling at an Early Design Stage
source	CAADRIA 2008 [Proceedings of the 13th International Conference on Computer Aided Architectural Design Research in Asia] Chiang Mai (Thailand) 9-12 April 2008, pp. 552-559
doi	https://doi.org/10.52842/conf.caadria.2008.552
summary	The paper introduces an experimental design studio that explores the optimal use of current digital technologies in order to allow the adoption of Building Information Modelling at an early stage of the design process. Based upon outcomes from the aforementioned studio, the paper discusses issues regarding the adoption of BIM.
keywords	Building Information Modelling; Design Studio; Design Strategy
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	radzjukevich02_paper_eaea2007
id	radzjukevich02_paper_eaea2007
authors	Radzjukewich, Andrey
year	2008
title	The Computer Methods of Construction Spiral Structures
source	Proceedings of the 8th European Architectural Endoscopy Association Conference
summary	The object of our research is geometric characteristics of spiral structures which are widely spread in nature (cones, sunflower beds…). It is a well-known fact that there is a proportional intercommunication according to the “golden section”. The correlation of the quantity of “right” and “left” spirals ties to have an irrational coefficient of “golden section” through the correlation numbers of 1,618… from Fibbonacci series ( 5/3, 8/5, 13/8, 21/13, 34/21, 55/34 …). When the proportion of “golden section” was found in the natural objects since the middle of the 19-th century (A.Zeizing), there began to appear a lot of hypotheses about some special aesthetic and technological characteristics of this proportion. The proportion of “golden section” became the most important architectural instrument in the first half of the 20-th century. This instrument made it possible to design beautiful and comfortable buildings (Le Corbusier). We tried to find a geometric way of building spiral structures which would be similar to natural ones. We solved this problem with the help of the developed algorythm the geometric characteristics of the cells of which spiral structures are built were investigated. It was found out that the cells of “golden” spiral structures don't have any special characteristics if compare with the cells of other spiral structures. During our work we found some spiral structures which have optimal geometric characteristics. These structures let's call them radial-hexagonal, have maximal area of a cell, though they have minimum perimeter. We also defined the main difference in the growing strategy of animate and inanimate structures. Inanimate structures grow by means of addition external elements. Animate structures grow by means of constant pushing of new elements which appear in the centre towards periphery. The optimal filling of the plane in the process of such growing is possible only by “golden section” of “right” and “left” spirals.
keywords	spirals, spiral lattices, a proportion of "gold section”
series	EAEA
email
more	http://info.tuwien.ac.at/eaea
last changed	2008/04/29 20:46

_id	ddss2008-34
id	ddss2008-34
authors	Wetzel, Jean-Paul; Salim Belblidia et Jean-Claude Bignon
year	2008
title	Specification and implementation of a parametricoperator : Folding
source	H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary	In the early stage of creation, the architect tests his working hypotheses by making many adjustments while designing. During the sketching phase, the existing modeling tools are not compatible with the iterative nature of this process. So the challenge lies in the definition of a model which will allow the whole creative process with its various coming and frowing during the phase of conception. We will illustrate this model by implementing a parametric operator allowing the action of folding. Its parametric specificity will enable the architect, in the design phase, to make the numerous moves alterations required to obtain an optimal shape.
keywords	Parametric design, Morphologic operators, folding
series	DDSS
last changed	2008/09/01 17:06

_id	ddss2008-03
id	ddss2008-03
authors	Zhu, Wei and Harry Timmermans
year	2008
title	Incorporating Principles of Bounded Rationality intoModels of Pedestrian Shopping BehaviorTheory and Example
source	H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary	The modeling and simulation of pedestrian behavior has been dominantly relied on rational choice models in which pedestrians are assumed to be capable of processing a large number of choice alternatives and trade off attribute utilities. In reality, however, pedestrian behaivor shows the evidence of bounded rationality. They simplify the decision problem by considering a limited number of factors as well alternatives, using heuristics to arrive at satisfactory as opposed to optimal choices. Incorporating principles of bounded rationality in pedestrian modeling will benefit the understanding of individual decision processes and planning practice. This paper proposes an approach that models the cognitive processes such as filtering factors, constructing preference structures, deriving heterogeneous decision heuristics, and selecting decision strategies. The approach is also exemplified through estimating the model on pedestrian store patronage behavior data, collected in a shopping center in Shanghai, China. The results show the estimated probabilities of usage of decision strategies and the sequences of factor search. Compared with the conventional multinomial logit models, the results indicate the statistical advantages of the new approach.
keywords	Bounded rationality, decision heuristics, heterogeneity, pedestrian, store patronage decision
series	DDSS
last changed	2008/09/01 17:06

_id	9609
id	9609
authors	Abdelmohsen, Sherif; Do, Ellen Yi-Luen
year	2008
title	Energy Puppet: An Ambient Awareness Interface for Home Energy Consumption
source	Digital proceedings of the 7th International Workshop on Social Intelligence Design (SID 2008), School of Architecture, Universidad de Puerto Rico, San Juan, Puerto Rico.
summary	The Energy Puppet is an ambient display device that provides peripheral awareness of energy consumption for individual home appliances. The display produces different “pet-like” behavioral reactions according to energy use patterns of the appliances to give homeowners an indication of their energy consumption status. The puppet would raise its “arms” in victory to display normal consumption rate, or its “eyes” would change color to red and “roar” to warn the homeowners when the specific appliance reaches dangerously high consumption rates. The assumption is that the awareness of energy consumption could affect how people consume and control energy use in their households. This paper describes the usage scenarios and the design and implementation of Energy Puppet and discusses future research directions.
keywords	Ambient Intelligence, Peripheral Awareness, Energy Consumption
series	other
type	normal paper
email
last changed	2010/01/30 07:22

_id	5d77
id	5d77
authors	Adriane Borda; Neusa Félix; Janice de Freitas Pires; Noélia de Moraes Aguirre.
year	2008
title	MODELAGEM GEOMÉTRICA NOS ESTÁGIOS INICIAIS DE APRENDIZAGEM DA PRÁTICA PROJETUAL EM ARQUITETURA. GEOMETRIC MODELING IN THE EARLY STAGES OF LEARNING PRACTICE ARCHITECTURAL DESIGN.
source	12th Iberoamerican Congress of Digital Graphics, SIGRADI, 2008, Havana. SIGRADI, Proceedings of the 12th Iberoamerican Congress of Digital Graphics.. Havana : Ministerio de Educacion Superior, 2008. p. 434-438.
summary	This work invests on delimitation of a Geometric Modeling study program directed to students at the initial stages of Architecture. It is considered that the studies promote a qualified control of the form based on recognition of parameters which define it, moreover it also allows the enlargement of the students geometric vocabulary, important to the architectural design activities. In this way, the program advances on the appropriation of new concepts which surround the investigations on architectural design processes, such as the concept of shape grammar. Observing analysis and architectural composition practices based on such concept, contents of geometric modeling which are already being used in the context of post-graduation are identified to be transposed to the graduation context, along with the initial teaching practices of architectural design. The results refer to making the didactic material available, these materials have the objective of building references for the development of design practice which explore the reflection about the processes of creation and composition of architectural form in their geometric aspects.
keywords	Architecture, Geometric Modeling, Shape grammar, Teaching/Learning
series	SIGRADI
type	normal paper
email
last changed	2016/03/10 09:47

_id	ijac20086405
id	ijac20086405
authors	Ahlquist, Sean; Fleischmann, Moritz
year	2008
title	Elemental Methods for Integrated Architectures: Experimentation with Design Processes for Cable Net Structures
source	International Journal of Architectural Computing vol. 6 - no. 4, 453-475
summary	Tension active systems are compelling architectural structures having an intimate connection between structural performance and the arrangement of material. The direct flow of structural forces through the material makes these systems attractive and unique from an aesthetic point of view, but they are a challenge to develop from a design and an engineering perspective. Traditional methods for solving such structural systems rely on both analog modeling techniques and the use of highly advanced engineering software. The complexity and laborious nature of both processes presents a challenge for iterating through design variations. To experiment with the spacemaking capabilities of tension active systems, it is necessary to design methods that can actively couple the digital simulation with the analog methods for building the physical structure. What we propose is a designer-authored process that digitally simulates the behaviors of tension active systems using simple geometric components related to material and structural performance, activated and varied through elemental techniques of scripting. The logics for manufacturing and assembly are to be embedded in the digital generation of form. The intention is to transform what is a highly engineered system into an architectural system where investigation is as much about the determination of space and environment as it is about the arrangement of structure and material.
series	journal
last changed	2009/03/03 07:48

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