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	ddss2004_d-111
id	ddss2004_d-111
authors	Kitazawa, K. and M. Batty
year	2004
title	Pedestrian Behaviour Modelling
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Developments in Design & Decision Support Systems in Architecture and Urban Planning, Eindhoven: Eindhoven University of Technology, ISBN 90-6814-155-4, p. 111-126
summary	This paper introduces a study of pedestrian behaviour modelling which incorporates ideas about agent-based systems and the traffic models based on the utility-maximization theory. The aim of this study is to examine the applicable scope of one of the basic assumptions in existing spatial behaviour models; the route with shortest distance maximizes the utility of each pedestrian’s travel. Although shortest-path models have been widely used in the field of Traffic management to predict routing behaviour, there can be seen a lot of erratic behaviour in urban areas, shopping migration behaviour for instance, which can not be explained by them. Thus, it is important to identify other possible influential factors on their utility maximization process in order to develop more explicable models of pedestrian movements. In this study, we implemented a simulation model using the shortest-path model as one of evaluation criteria of Genetic Algorithms (GA) to computationally emulate retail movements of shoppers in a big shopping centre and to test the accuracy of the model by comparison between the routes estimated by the model and actual trajectories of shoppers. This simulation system will be used as a platform for further modelling.
keywords	Pedestrian Modelling, Retail Movement, Shortest-Path, Genetic Algorithms
series	DDSS
last changed	2004/07/03 22:13

_id	ddss2008-08
id	ddss2008-08
authors	Koshak, Nabeel A.; Abdullah Fouda
year	2008
title	Analyzing Pedestrian Movement in Mataf Using GPSand GIS to Support Space Redesign
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	Evaluating the use of architectural and urban spaces is an important issue for architects and urban designers who wish to enhance space usability. Space usability is crucial in crowded spaces such as Mataf areas. Millions of people come to the city of Makkah, Saudi Arabia every year to perform Hajj (Islamic Pilgrimage) and Umrah. A cornerstone of Hajj and Umrah spirituals is to perform Tawaf, which is the circumambulation of the Ka'bah in the center of the Holy Mosque in Makkah. The areas of performing Tawaf (called Mataf) become very crowded during Hajj and the last ten days of Ramadan. This paper demonstrates how we utilized Global Positioning Systems (GPS) and Geographic Information Systems (GIS) to analyze pedestrian movement while performing Tawaf. During the Hajj of 1424 H (2004 in the Georgian Calendar), several GPS devices were used to collect pedestrian movement coordinates at specific time intervals. Computer software for tracking analysis is used to visualize and analyze the pattern of pedestrian movement in Tawaf. The software allows users to view temporal data, which can be set up with past time windows for historical data analysis. The findings of this research show levels of service and flow rates throughout different zones and times of Mataf. They indicate the most critical zones and times for Tawaf during Hajj. They also visually demonstrate the track pattern of pedestrian movement at different locations in the Tawaf area. The paper concludes with some redesign recommendations to remove obstacles and facilitate pedestrian movement in Tawaf. The approach described in this paper can be implemented in architectural and urban design space modifications to improve pedestrian movement in open spaces.
keywords	Pedestrian movement analysis, GPS, GIS, Hajj, Makkah, Tawaf
series	DDSS
last changed	2008/09/01 17:06

_id	sigradi2004_310
id	sigradi2004_310
authors	Sharad Sharma; James A. Turner
year	2004
title	An object oriented approach to simulating agent-based behavior
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	In this paper, we present an object-oriented approach for simulating agent-based egress behavior. The tool can be used when planners or designers need to assess the implications of their design or planning decisions. The tool is a web-based application that is being developed using standard protocols and technologies such as HTTP, HTML, and Java. It also demonstrates the effect of new building designs by simulating human evacuation behavior and relates the behavior of people. The existing models to describe the behavior of crowds usually deal with macroscopic variables like the average speed or the flow. Our aim is to model crowds as a malleable, moving masses, hoping that a more refined simulation might be achieved by considering each avatars behavior.
keywords	Agent based simulation, Egress behavior
series	SIGRADI
email
last changed	2016/03/10 10:00

_id	314caadria2004
id	314caadria2004
authors	Ying-Shiu Huang, Jainyou Lee
year	2004
title	The New Combination of Digital Sketching and Modeling Process in Idea-Developing Stage
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 545-556
doi	https://doi.org/10.52842/conf.caadria.2004.545
summary	With the introduction of the computer into different forms of digital applications in the design process, Mitchell strongly recommended a wider application of the new technology in the design process -- implying the mutual influence between physical architecture and the sketches, and between physical and digital models. Most important is the possibility of using computer aided design (CAD) to develop ideas in early design stage. During the developing idea stage, the traditional design process from sketching drawings to forming ideas has been transformed to a process where the idea directly proceeds to computer modeling. The aim of this approach is to tackle the above issues created by the introduction of computer technology, trying to produce the same possibilities during the computer modeling process as that in the cognitive behavior of sketching. Also, the designer usually realizes the abstract concepts with the aid of the 2D sketches and the 3D physical models; but between the traditional sketches and the models, a large degree of disagreement always exists. Therefore, this work aims to develop a new formula for employing digital media, which will enable the designer to envisage 2D sketches and computer models simultaneously. In this scenario, the designer can remain aware of cognitive behavior in sketching while constructing computer models.
series	CAADRIA
email
last changed	2022/06/07 07:57

_id	ijac20075402
id	ijac20075402
authors	Burry, Jane R.
year	2007
title	Mindful Spaces: Computational Geometry and the Conceptual Spaces in which Designers Operate
source	International Journal of Architectural Computing vol. 5 - no. 4, pp. 611-624
summary	Combinatorial computational geometry, while dealing with geometric objects as discrete entities, provides the means both to analyse and to construct relationships between these objects and relate them to other non-geometrical entities. This paper explores some ways in which this may be used in design through a review of six, one-semester-long design explorations by undergraduate and postgraduate students in the Flexible Modeling for Design and Prototyping course between 2004 and 2007. The course focuses on using computational geometry firstly to construct topologically defined design models based on graphs of relationships between objects (parametric design,) and concurrently to output physical prototypes from these "flexible models"(an application of numerical computational geometry). It supports students to make early design explorations. Many have built flexible models to explore design iterations for a static spatial outcome. Some have built models of real time responsive dynamic systems. In this educational context, computational geometry has enabled a range of design iterations that would have been challenging to uncover through physical analogue means alone. It has, perhaps more significantly, extended the students' own concept of the space in which they design.
series	journal
email
last changed	2008/02/25 20:30

_id	ddss2004_d-269
id	ddss2004_d-269
authors	Beetz, J., J. van Leeuwen, and B. de Vries
year	2004
title	Towards a Multi Agent System for the Support of Collaborative Design
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Developments in Design & Decision Support Systems in Architecture and Urban Planning, Eindhoven: Eindhoven University of Technology, ISBN 90-6814-155-4, p. 269-280
summary	In this paper we are drafting the outline of a framework for a Multi Agent System (MAS) for the support of Collaborative Design in the architectural domain. The system we are proposing makes use of Machine Learning (ML) techniques to infer personalized knowledge from observing a users’ action in a generic working environment using standard tools such as CAD packages. We introduce and discuss possible strategies to combine Concept Modelling (CM)-based approaches using existing ontologies with statistical analysis of action sequences within a domain specific application. In a later step, Agent technologies will be used to gather additional related information from external resources such as examples of similar problems on the users hard disk, from corresponding work of team-members within an intranet or from advises of expert from different knowledge domains, themselves represented by agents. As users deny or reward resulting proposals offered by the agent(s) through an interface the system will be enhanced over time using methods like Reinforced Learning.
keywords	Multi Agent Systems, Design & Decision Support Systems, Collaborative Design, Human Computer Interfaces, Machine learning, Data Mining
series	DDSS
last changed	2004/07/03 22:13

_id	507caadria2004
id	507caadria2004
authors	Christiane M. Herr, Thomas Fischer
year	2004
title	Using Hardware Cellular Automata to Simulate Use in Adaptive Architecture
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 815-828
doi	https://doi.org/10.52842/conf.caadria.2004.815
summary	In this paper we give an account of our development of a hardware machine-readable cellular automata model for simulating dynamic patterns of use and adaptation in vernacular high-density architecture. In a hypothetical architectural setting that draws its formal expression from illegal façade extensions in Hong Kong and its conceptual framework from the Open Building movement, we examine state evolutions in monotonous matrices of adaptable residential units. The primary objective is to gain a better understanding not only of architectural form but also of dynamic processes in the built environment and hence of the factors that cause adaptive architectures to tend towards different types of overall attractor states. The paper gives a discussion of the project’s theoretical background as well as a detailed description of the hardware model and its modes of application.
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	acadia07_284
id	acadia07_284
authors	Robinson, Kirsten; Gorbet, Robert; Beesley, Philip
year	2007
title	Evolving Cooperative Behaviour in a Reflexive Membrane
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 284-293
doi	https://doi.org/10.52842/conf.acadia.2007.284
summary	This paper describes the integration of machine intelligence into an immersive architectural sculpture that interacts dynamically with users and the environment. The system is conceived to function as an architectural envelope that might transfer air using a distributed array of components. The sculpture includes a large array of interconnected miniature structural and kinetic elements, each with local sensing, actuation, and machine intelligence. We demonstrate a model in which these autonomous, interconnected agents develop cooperative behaviour to maximize airflow. Agents have access to sensory data about their local environment and ‘learn’ to move air through the working of a genetic algorithm. Introducing distributed and responsive machine intelligence builds on work done on evolving embodied intelligence (Floreano et al. 2004) and architectural ‘geotextile’ sculptures by Philip Beesley and collaborators (Beesley et al. 1996-2006). The paper contributes to the general field of interactive art by demonstrating an application of machine intelligence as a design method. The objective is the development of coherent distributed kinetic building envelopes with environmental control functions. A cultural context is included, discussing dynamic paradigms in responsive architecture.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 08:00

_id	sigradi2004_323
id	sigradi2004_323
authors	Yoshihiro Kobayashi; Meenakshi Sharma
year	2004
title	Dynamic interface for axial spatial arrangements using soft computing
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This paper describes a computer application that can organize 3D objects along an axis and also redistribute those based on a set of constraints or existing patterns as selected by the user. In particular, the focus of the paper is the two dynamic Graphical User Interfaces (GUIs): the Constraint Arrangement (CA) and the Pattern Arrangement (PA). For these, we use the Soft Computing Techniques . Kohonen.s Self Organizing Map (SOM) and Genetic Algorithm (GA). In both the cases, the application outputs an axial organization of predefined 3D objects which, either adhere to selected constraints or follow patterns set by prior design. The application is implemented, tested and its results are demonstrated using buildings systems.
series	SIGRADI
email
last changed	2016/03/10 10:03

_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	2004_148
id	2004_148
authors	Fatah gen. Schieck, A., Penn, A., Mottram, C., Strothmann, C., Ohlenburg, J., Broll, W. and Aish, F.
year	2004
title	Interactive Space Generation through Play - Exploring Form Creation and the Role of Simulation on the Design Table
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 148-158
doi	https://doi.org/10.52842/conf.ecaade.2004.148
summary	In this paper we report on recent developments in ARTHUR: an approach to support complex design and planning decisions for architects together with the simulation of pedestrian movement and the integration of existing CAD tools on the design table. Following a brief introduction, past and current work that has taken a similar approach will be reviewed. Next we describe a scenario that integrates agent-based simulations of pedestrian movement with space creation, and then give an overview of the system before finally discussing findings related to recent user evaluation studies of the system. This paper suggests that the integration of simulated pedestrian movement on the design table, while going through a cycle of reflection-in-action, plays a vital role in exploring possible design solutions and encourages new and different ways of thinking about design problems.
keywords	Tangible User Interface, Pedestrian Simulation, Collaboration, Augmented Reality (AR), CAD Integration
series	eCAADe
last changed	2022/06/07 07:55

_id	caadria2004_k-1
id	caadria2004_k-1
authors	Kalay, Yehuda E.
year	2004
title	CONTEXTUALIZATION AND EMBODIMENT IN CYBERSPACE
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 5-14
doi	https://doi.org/10.52842/conf.caadria.2004.005
summary	The introduction of VRML (Virtual Reality Markup Language) in 1994, and other similar web-enabled dynamic modeling software (such as SGI’s Open Inventor and WebSpace), have created a rush to develop on-line 3D virtual environments, with purposes ranging from art, to entertainment, to shopping, to culture and education. Some developers took their cues from the science fiction literature of Gibson (1984), Stephenson (1992), and others. Many were web-extensions to single-player video games. But most were created as a direct extension to our new-found ability to digitally model 3D spaces and to endow them with interactive control and pseudo-inhabitation. Surprisingly, this technologically-driven stampede paid little attention to the core principles of place-making and presence, derived from architecture and cognitive science, respectively: two principles that could and should inform the essence of the virtual place experience and help steer its development. Why are the principles of place-making and presence important for the development of virtual environments? Why not simply be content with our ability to create realistically-looking 3D worlds that we can visit remotely? What could we possibly learn about making these worlds better, had we understood the essence of place and presence? To answer these questions we cannot look at place-making (both physical and virtual) from a 3D space-making point of view alone, because places are not an end unto themselves. Rather, places must be considered a locus of contextualization and embodiment that ground human activities and give them meaning. In doing so, places acquire a meaning of their own, which facilitates, improves, and enriches many aspects of our lives. They provide us with a means to interpret the activities of others and to direct our own actions. Such meaning is comprised of the social and cultural conceptions and behaviors imprinted on the environment by the presence and activities of its inhabitants, who in turn, ‘read’ by them through their own corporeal embodiment of the same environment. This transactional relationship between the physical aspects of an environment, its social/cultural context, and our own embodiment of it, combine to create what is known as a sense of place: the psychological, physical, social, and cultural framework that helps us interpret the world around us, and directs our own behavior in it. In turn, it is our own (as well as others’) presence in that environment that gives it meaning, and shapes its social/cultural character. By understanding the essence of place-ness in general, and in cyberspace in particular, we can create virtual places that can better support Internet-based activities, and make them equal to, in some cases even better than their physical counterparts. One of the activities that stands to benefit most from understanding the concept of cyber-places is learning—an interpersonal activity that requires the co-presence of others (a teacher and/or fellow learners), who can point out the difference between what matters and what does not, and produce an emotional involvement that helps students learn. Thus, while many administrators and educators rush to develop webbased remote learning sites, to leverage the economic advantages of one-tomany learning modalities, these sites deprive learners of the contextualization and embodiment inherent in brick-and-mortar learning institutions, and which are needed to support the activity of learning. Can these qualities be achieved in virtual learning environments? If so, how? These are some of the questions this talk will try to answer by presenting a virtual place-making methodology and its experimental implementation, intended to create a sense of place through contextualization and embodiment in virtual learning environments.
series	CAADRIA
type	normal paper
last changed	2022/06/07 07:52

_id	999e
id	999e
authors	KOUZELEAS Stelios
year	2004
title	APPLICATIONS OF ACOUSTIC AND GEOMETRIC SIMULATION OF HALLS WITH THE AID OF WITH THE AID OF ACOUSTIC SIMULATION PLATE-FORM ADAPTABLE IN A CAD SYSTEM. - (EFARMOGES AKOUSTIKHS KAI GEWMETRIKHS PROSOMOIOSHS AITHOUSWN ME TH BOHTHEIA PLATFORMAS AKOYSTIKHS PROSOMOIOSHS PROSARMOSMENHS SE SYSTHMA CAD)
source	Acoustics 2004, Hellenic Institute of Acoustics (HELINA), Aristotle University of Thessaloniki, 27-28 September 2004, Greece
summary	(pdf file in greek)- With the aid of the acoustic simulation plate-form named « CAD-Acoustic » which is developed in the context of PhD and adapted on the AutoCAD system, this paper presents the halls acoustic results (RT60) of Elmia (Sweden) and Opera of Bordeaux (France) in relation to acoustic measurements and results of other acoustic simulation software (Odeon, Epidaure). In parallel, it presents geometrical simulations of the modelised halls’ acoustic behavior, such as the 3D reflections of the acoustic rays from selected surface, the 3D view of the materials’ arrangements through surfaces’ coloring, the measurement of the selected absorbing / reflecting surfaces in m2 and the individual or massive absorption coefficients’ assignment to the surfaces. Finally, with the aid of « CAD-Acoustic » the acoustic results are compared in a graphic manner in relation to the ideal acoustic rates, a presentation which is a kind of an “ architectural translation of the acoustic results” taking into account several architectural elements.
keywords	CAD modeling, "CAD-Acoustic" software developement, Architectural acoustic simulation
series	other
type	normal paper
email
more	http://www.helina.gr/
last changed	2005/10/25 11:22

_id	ijac20032201
id	ijac20032201
authors	Mahalingam, Ganapathy; Kavasseri, Rajesh G.
year	2004
title	Improving Objective Digital Images with Neuronal Processing: A Computational Approach
source	International Journal of Architectural Computing vol. 2 - no. 2
summary	This paper describes an experiment where an imagerecorded with a digital camera is processed using anelectro-physiological model of a neuron. Theluminosity level of each pixel of the source image istreated as the stimulus for an individual neuron, andthe source image is transformed into a responseimage based on the processing behavior of theHodgkin-Huxley neuronal model. It is seen thattransformation of the image through neuronalprocessing yields (i) more evenly balanced levels ofluminosity and (ii) a more ‘subjective’ rendering of theenvironment than what was photographed with thedigital camera.The CCD (charge coupled device) –based digital camera reveals its limitation as a linearrecording device that does not have a balanceddynamic range.The neuronal processing of the imageadds non-linearity and a balanced range to theluminosity levels in the image, rendering it closer to a‘subjective’ perception of the scene.
series	journal
email
more	http://www.multi-science.co.uk/ijac.htm
last changed	2007/03/04 07:08

_id	ddss2004_ra-161
id	ddss2004_ra-161
authors	Bandini, S., S. Manzoni, and G. Vizzari
year	2004
title	Crowd Modeling and Simulation
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Recent Advances in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Kluwer Academic Publishers, ISBN: 1-4020-2408-8, p. 161-175
summary	The paper introduces a Multi Agent Systems (MAS) approach to crowd modelling and simulation, based on the Situated Cellular Agents (SCA) model. This is a special class of Multilayered Multi Agent Situated System (MMASS), exploiting basic elements of Cellular Automata. In particular SCA model provides an explicit spatial representation and the definition of adjacency geometries, but also a concept of autonomous agent, provided with an internal architecture, an individual state and behaviour. The latter provides different means of space-mediated interaction among agents: synchronous, between adjacent agents, and asynchronous among at-a-distance entities. Heterogeneous entities may be modelled through the specification of different agent types, defining different behaviours and perceptive capabilities. After a brief description of the model, its application to simple crowd behaviours will be given, and an application providing the integration of a bidimensional simulator based on this model and a 3D modelling application (3D Studio) will also be described. The adoption of this kind of system allows the specification and simulation of an architectural design with reference to the behaviour of entities that will act in it. The system is also able to easily produce a realistic visualization of the simulation, in order to facilitate the evaluation of the design and the communication with involved decision-makers. In fact, while experts often require only abstract and analytical results deriving from a quantitative analysis of simulation results, other people involved in the decision-making process related to the design may be helped by qualitative aspects better represented by other forms of graphical visualization.
keywords	Multi-Agent Systems, 3D modelling, Simulation
series	DDSS
last changed	2004/07/03 22:13

_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	acadia11_138
id	acadia11_138
authors	Buell, Samantha; Shaban, Ryan; Corte, Daniel; Beorkrem, Christopher
year	2011
title	Zero-waste, Flat Pack Truss Work: An Investigation of Responsive Structuralism
source	ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 138-143
doi	https://doi.org/10.52842/conf.acadia.2011.138
summary	The direct and rapid connections between scripting, modeling and prototyping allow for investigations of computation in fabrication. The manipulation of planar materials with two-dimensional CNC cuts can easily create complex and varied forms, volumes, and surfaces. However, the bulk of research on folding using CNC fabrication tools is focused upon surfaces, self-supporting walls and shell structures, which do not integrate well into more conventional building construction models.This paper attempts to explain the potential for using folding methodologies to develop structural members through a design-build process. Conventional building practice consists of the assembly of off-the-shelf parts. Many times, the plinth, skeleton, and skin are independently designed and fabricated, integrating multiple industries. Using this method of construction as an operative status quo, this investigation focused on a single structural component: the truss. A truss is defined as: “A triangulated arrangement of structural members that reduces nonaxial external forces to a set of axial forces in its members.” (Allen and Iano 2004)Using folding methodologies and sheet steel to create a truss, this design investigation employed a recyclable and prolific building material to redefine the fabrication of a conventional structural member. The potential for using digital design and two-dimensional CNC fabrication tools in the design of a foldable truss from sheet steel is viable in the creation of a flat-packed, minimal waste structural member that can adapt to a variety of aesthetic and structural conditions. Applying new methods to a component of the conventional ‘kit of parts’ allowed for a novel investigation that recombines zero waste goals, flat-packing potential, structural expression and computational processes.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:54

_id	316caadria2004
id	316caadria2004
authors	Chor-Kheng Lim
year	2004
title	A Revolution of the Design Process
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 571-583
doi	https://doi.org/10.52842/conf.caadria.2004.571
summary	Along with the development of computer technologies and CAD/CAM, digital tools are increasingly adapted in architectural design. Developed thus far, functions of digital tools are no long limited to two-dimensional drafting or final presentation; they have become tools that can assist design thinking. Because of the involvement of digital tools, the design process has been greatly affected; or, one may say that digital tools liberated the confines of forms and structuring of architectures. This research aims to explore the procedures in the design process using digital tools. In the conclusion, we found that in an attempt to abridge the gap between design ideas and actual implementation, the designer used the digital reality simulation function very frequently to assist in decision making, and in order to process more complex and freer forms, the designer relied on the 3D design environment to carry out his thinking process and amendments. In addition, the digital design process is mainly conducted through the methods of 1, 3D modeling, 2, Simulation, 3, Generation, and 4, Fabrication. The steps and methods in the digital design process are obviously different from the traditional ones, which focus mainly on mass-production of 2D drawings; therefore, it is certain that the new tools will change the outcome of the designs.
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	506b
id	506b
authors	Christenson, Mike
year	2009
title	Testing the relevance of parameterization to architectural epistemology
source	Architectural Science Review, Volume 52.2: 135-141
summary	Advances in building information modeling (BIM) deeply impact the production of new architecture; its benefits are obvious and its acceptance widespread. But how does BIM impact the study of existing architecture? Can BIM be assumed to operate as a neutral framework, equally applicable to the study of architecture anywhere? Using as a point of departure a recent outline of the conceptual structure of parametric modeling prepared by Sacks, Eastman, and Lee (2004), this paper compares parametric models of two existing works of architecture: Mies van der Rohe’s Crown Hall and Peter Zumthor’s St. Benedict Chapel. The processes of parametrically modeling each building are specifically compared in two ways: first, parameters are established for each model; second, each model is "flexed" as a means of disclosing possible semantic relationships within each work of architecture. Because each building demands a different parameter-establishment strategy, and because the models permit different degrees of flexibility, the comparison illustrates the shortcomings of a "neutral framework" assumption to an architectural epistemology.
keywords	Existing architecture, Parametric modeling, Representation
series	journal paper
type	normal paper
email
more	http://www.earthscanjournals.com/asre/052/asre0520135.htm
last changed	2009/06/18 14:24

_id	sigradi2004_345
id	sigradi2004_345
authors	Eleanna Cadalso; Alejandro Haiek Coll; Pedro Soza Ruiz
year	2004
title	Modelación por captura de movimiento [Modeling by means of Movement Capture]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	Keyframing, Morphing, Inverse Kinematics; they are all animation technics which have been explored by diverse groups of architects, academics and students, searching for new horizons in the proyecting process development, pushing forward the present limits of proyecting methodology. We define this project starting by the explorative use of animation tools as experimental variables in reformulating our design processes. Data input have been traditionally carried out using classic interfaces such as keyboard, mouse, graphics tablet, among others. Despite this is accepted by many as the standard way of communicating with machines, we think this is still very far from the ideal way to design and model new proposals. In this context we propose to investigate a new way to approach to the computed aided modelling process, questioning and reformulating traditional interfaces in user .machine communication.
series	SIGRADI
email
last changed	2016/03/10 09:51

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