CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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Hits 1 to 20 of 535

_id ascaad2012_020
id ascaad2012_020
authors Bouchahm, Yasmina; Fatiha Bourbia and Bouketta Samira
year 2012
title Numerical Simulation of Effect of Urban Geometry Layouts on Wind and Natural Ventilation Under Mediterranean Climate
source CAAD | INNOVATION | PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 195-202
summary The use of the method "simulation" of the microclimate for an urban site presents much of interest; because this can serve as us observation and analysis of the consequences of various scenarios relating to the existence and the importance of the constituent elements in urban space. Wind in outdoor urban space is among the most difficult parameters to identify and control field given its instability. Currently, in the field of the ventilation, there are some outdoor spaces simulation tools, used to assess the flow of the wind at different spatial scales. The aim of this research is to demonstrate the effect of the urban geometry of the layout on the wind movement and the outdoor natural ventilation. However, this study investigated the effect on outdoor thermal comfort of a building layouts in a planned residential area situated in the city of Jijel humid Mediterranean region of Algeria. In order to improve outside comfort in this open space, a 3D numerical simulation tool ENVI-met 3.1 beta 4 was used to simulate the urban thermal climate taking into account various scenarios. Thus, simulation’s results are discussed in this paper
series ASCAAD
email ybouchahm2@gmail.com
more http://www.ascaad.org/conference/2012/papers/ascaad2012_020.pdf
last changed 2012/05/15 18:46

_id sigradi2012_130
id sigradi2012_130
authors Dutt, Florina; Das, Subhajit
year 2012
title Designing Eco Adaptable Residence in a Hot & Humid Climate, in Kolkata, India
source SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 509-512
summary The research paper outlines the novel design methodology undertaken to redesign an existing apartment building in Kolkata India. The aim of the research is to significantly improve the design of the individual apartments as well as their spatial arrangement to enhance the indoor comfort level experienced by the inhabitants. The initial in-depth study of the existing design of the apartment building encompasses a short survey of the comfort level experienced by its inhabitants in terms of day lighting, natural ventilation and thermal comfort. The survey revealed the way in which these issues affected the behavioral pattern of the inhabitants in rearranging their spatial needs for the given design conditions. Consequently, the endeavor proposed promised to significantly improve the aforesaid areas of problem & discomfort for the building occupants. At the same time, exploiting contemporary computational simulation tools and digital three-dimensional modeling techniques the project leverages the same to prove the improvements proposed by research data in the form of scientific & mathematical tables and values.
keywords Sustainable Design; Solar Architecture; Wind Tunnel Test; Eco Adaptable Housing
series SIGRADI
email scorpio.rina@gmail.com
last changed 2016/03/10 08:50

_id ascaad2012_003
id ascaad2012_003
authors Elseragy, Ahmed
year 2012
title Creative Design Between Representation and Simulation
source CAAD | INNOVATION | PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 11-12
summary Milestone figures of architecture all have their different views on what comes first, form or function. They also vary in their definitions of creativity. Apparently, creativity is very strongly related to ideas and how they can be generated. It is also correlated with the process of thinking and developing. Creative products, whether architectural or otherwise, and whether tangible or intangible, are originated from ‘good ideas’ (Elnokaly, Elseragy and Alsaadani, 2008). On one hand, not any idea, or any good idea, can be considered creative but, on the other hand, any creative result can be traced back to a good idea that initiated it in the beginning (Goldschmit and Tatsa, 2005). Creativity in literature, music and other forms of art is immeasurable and unbounded by constraints of physical reality. Musicians, painters and sculptors do not create within tight restrictions. They create what becomes their own mind’s intellectual property, and viewers or listeners are free to interpret these creations from whichever angle they choose. However, this is not the case with architects, whose creations and creative products are always bound with different physical constraints that may be related to the building location, social and cultural values related to the context, environmental performance and energy efficiency, and many more (Elnokaly, Elseragy and Alsaadani, 2008). Remarkably, over the last three decades computers have dominated in almost all areas of design, taking over the burden of repetitive tasks so that the designers and students can focus on the act of creation. Computer aided design has been used for a long time as a tool of drafting, however in this last decade this tool of representation is being replaced by simulation in different areas such as simulation of form, function and environment. Thus, the crafting of objects is moving towards the generation of forms and integrated systems through designer-authored computational processes. The emergence and adoption of computational technologies has significantly changed design and design education beyond the replacement of drawing boards with computers or pens and paper with computer-aided design (CAD) computer-aided engineering (CAE) applications. This paper highlights the influence of the evolving transformation from Computer Aided Design (CAD) to Computational Design (CD) and how this presents a profound shift in creative design thinking and education. Computational-based design and simulation represent new tools that encourage designers and artists to continue progression of novel modes of design thinking and creativity for the 21st century designers. Today computational design calls for new ideas that will transcend conventional boundaries and support creative insights through design and into design. However, it is still believed that in architecture education one should not replace the design process and creative thinking at early stages by software tools that shape both process and final product which may become a limitation for creative designs to adapt to the decisions and metaphors chosen by the simulation tool. This paper explores the development of Computer Aided Design (CAD) to Computational Design (CD) Tools and their impact on contemporary design education and creative design.
series ASCAAD
email ahmed.elseragy@aast.edu
more http://www.ascaad.org/conference/2012/papers/ascaad2012_003.pdf
last changed 2012/05/15 18:46

_id caadria2012_074
id caadria2012_074
authors Markova, Stanimira and Andreas Dieckmann
year 2012
title An IFC based design check approach for the optimisation of material efficiency in the built environment
source Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 275–284
summary Compared to other industries, the built environment is still the largest and one of the least efficient consumers of resources. Existing measures and procedures for resource recovery and reuse are focused on the demolition phase, when the composition of materials and structures is mostly unknown and hard to be analysed. Therefore, these measures are somewhat inefficient for overall high-rate material recovery. The enhancement of the integrated semantic planning process by the introduction of the IFC unified data standard and BIM technology is a first-time opportunity to track, analyse, document and simulate all relevant players, parameters and processes with an impact on the resource and material efficiency through the entire life cycle of a building in the design phase of a building project. The presented work explores the potential of IFC to serve as a framework for achieving a higher material efficiency in the built environment. A proposed design check approach for the simulation and optimisation of material efficiency in a building over its life cycle is based on a system of key parameters and actions organised in logic trees. The parameters and actions are translated into IFC objects. Additionally required IFC objects and properties are identified and described.
keywords BIM; IFC; integrative design; material efficiency design
series CAADRIA
email smarkova@caad.arch.rwth-aachen.de
last changed 2012/05/29 07:34

_id caadria2012_105
id caadria2012_105
authors Symeonidou, Ioanna and Utssav Gupta
year 2012
title Bending curvature: A design tool for interactive complexity
source Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 547–556
summary Bending is a phenomenon that occurs with great frequency due to the presence of natural forces like gravity, wind. It occurs whenever an element is subjected to an external load applied perpendicularly to its longitudinal axis. Every known element, independently of its stiffness, exhibits certain amount of bending. This paper explores this phenomenon not as a failure mode to provide tolerance for, but as a tool to design with. The design research presented here emerged from a combination of digital explorations calibrated through analogue experiments of bending rods. The aim was to create a model that would incorporate the interaction between bending rods and the transfer of forces. Rods were connected to each other with rings that allowed for certain degree of freedom, though limiting them to be in contact with each other at all time. The rods started bending in various planes; their curvature is negotiated with that of their neighbours and thus a process of self-organisation with multiple parameters was present until equilibrium was attained. Intrigued by this observation, this research seeks to look at bending as a possible design tool. Understanding the behaviour of a single element in its simplex situation and simulating this behaviour in a computational environment has been the starting point for building up a model where complexity is built progressively as a result of local interactions among several bending rods.
keywords Bending; geometry; simulation; parametric design; optimisation
series CAADRIA
email ioanna.symeonidou@gmail.com
last changed 2012/05/29 07:34

_id acadia12_139
id acadia12_139
authors Erioli, Alessio ; Zomparelli, Alessandro
year 2012
title Emergent Reefs
source ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 139-148
summary The Emergent Reefs project thrives on the potential that emerge from a coherent utilization of the environment’s inherent ecological structure for its own transformation and evolution, using an approach based on digitally simulated ecosystems and sparkled by the possibilities and potential of large-scale 3D printing technology. Considering tourism as an inevitable vector of environmental change, the project aims to direct its potential and economic resources towards a positive transformation, providing a material substrate for the human-marine ecosystem integration with the realization of spaces for an underwater sculpture exhibition. Such structures will also provide a pattern of cavities which, expanding the gradient of microenvironmental conditions, break the existing homogeneity in favor of systemic heterogeneity, providing the spatial and material preconditions for the repopulation of marine biodiversity. Starting from a digital simulation of a synthetic local ecosystem, a generative technique based on multi-agent systems and continuous cellular automata (put into practice from the theoretical premises in Alan Turing’s paper “The Chemical basis of Morphogenesis” through reaction-diffusion simulation) is implemented in a voxel field at several scales giving the project a twofold quality: the implementation of reaction diffusion generative strategy within a non-isotropic 3-dimensional field and integration with the large-scale 3D printing fabrication system patented by D-Shape®. Out of these assumptions and in the intent of exploiting the expressive and tectonic potential of such technology, the project has been tackled exploring voxel-based generative strategies. Working with a discrete lattice eases the simulation of complex systems and processes across multiple scales (including non-linear simulations such as Computational Fluid-Dynamics) starting from local interactions using, for instance, algorithms based on cellular automata, which then can be translated directly to the physical production system. The purpose of Emergent-Reefs is to establish, through strategies based on computational design tools and machine-based fabrication, seamless relationships between three different aspects of the architectural process: generation, simulation and construction, which in the case of the used technology can be specified as guided growth.
keywords emergence , reef , underwater , 3D printing , ecology , ecosystem , CFD , agency , architecture , tourism , culture , Open Source
series ACADIA
type normal paper
email alessio.erioli@unibo.it
last changed 2013/01/09 10:06

_id acadia12_87
id acadia12_87
authors Menicovich, David ; Gallardo, Daniele ; Bevilaqua, Riccardo ; Vollen, Jason
year 2012
title Generation and Integration of an Aerodynamic Performance Data Base Within the Concept Design Phase of Tall Buildings
source ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 87-96
summary Despite the fact that tall buildings are the most wind affected architectural typology, testing for aerodynamic performance is conducted during the later design phases well after the overall geometry has been developed. In this context, aerodynamic performance studies are limited to evaluating an existing design rather than a systematic performance study of design options driving form generation. Beyond constrains of time and cost of wind tunnel testing, which is still more reliable than Computational Fluid Dynamics (CFD) simulations for wind conditions around buildings, aerodynamic performance criteria lack an immediate interface with parametric design tools. This study details a framework for empirical data collection through wind tunnel testing of building mechatronic models and the expansion of the collected dataset by determining a mathematical interpolating model using an Artificial Neural Network (ANN) algorithm developing an Aerodynamic Performance Data Base (APDB). Frederick Keisler called the interacting of forces CO-REALITY, which he defined as The Science of Relationships. In the same article Keisler proclaims that the Form Follows Function is an outmoded understanding that design must demonstrate continuous variability in response to interactions of competing forces. This topographic space is both constant and fleeting where form is developed through the broadcasting of conflict and divergence as a system seeks balance and where one state of matter is passing by another; a decidedly fluid system. However, in spite of the fact that most of our environment consists of fluids or fluid reactions, instantaneous and geologic, natural and engineered, we have restricted ourselves to approaching the design of buildings and their interactions with the environment through solids, their properties and geometry; flow is considered well after the concept design stage and as validation of form. The research described herein explores alternative relations between the object and the flows around it as an iterative process, moving away from the traditional approach of Form Follows Function to Form Follows Flow.
keywords Tall Buildings , Mechatronics , Artificial Neural Network , Aerodynamic Performance Data Base
series ACADIA
type normal paper
email david.menicovich@gmail.com
last changed 2013/01/09 10:06

_id ecaade2012_013
id ecaade2012_013
authors Salim, Flora ; Moya, Rafael
year 2012
title Parallel Analysis of Urban Aerodynamic Phenomena Using High and Low-Tech Tools
source Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 621-629.
summary The study of wind conditions in cities is a significant factor in urban design in order to deal with issues related with pollution, wind pressures on buildings, and comfort on public spaces. This paper presents some results of a four-day workshop where some of the different techniques for simulating and visualising aerodynamic phenomena were explored. These technologies, classified as high-tech and low-tech tools, were used to investigate urban aerodynamic phenomena through parallel experiments, analysis, and eye observations. The experiments demonstrated that getting live feedbacks while interacting with the simulated aerodynamic phenomena is essential to improve the observers’ general comprehension of the phenomena. Our proposed method for studying aerodynamic phenomena, which integrates both low-tech and high-tech tools, facilitates designers to explore multiple options and configurations in the early stage of a design process.
wos WOS:000330322400065
keywords Urban aerodynamic; wind tunnel; Computational Fluid Dynamics (CFD); wind simulation; urban design
series eCAADe
email flora.salim@rmit.edu.au
last changed 2014/04/14 11:07

_id ecaade2012_184
id ecaade2012_184
authors Zomparelli, Alessandro ; Erioli, Alessio
year 2012
title Emergent Reefs
source Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 329-337
summary The purpose of Emergent-Reefs is to establish, through computational design strategies and machine-based fabrication, seamless relationships between three different aspects of the architectural process: generation, simulation and construction, with the intent of exploiting the expressive and tectonic potential of D-Shape technology for underwater reef formations as a design response to coastal erosion. Starting from a digital simulation of a synthetic local ecosystem, a generative technique based on multi-agent systems and reaction-diffusion (through continuous cellular automata - CCA) is implemented in a voxel fi eld at several scales. Discrete voxel space eases the simulation of complex systems and processes (including CFD simulations) via CCA algorithms, which then can be translated directly to the physical production system, which in case of addtive technology can be specifi ed as guided growth.
wos WOS:000330322400033
keywords Reaction-diffusion; Reefs; Multi-agent Systems; Open Source; D-Shape
series eCAADe
email alessandro.zomparelli@gmail.com
last changed 2014/04/14 11:07

_id acadia12_47
id acadia12_47
authors Aish, Robert ; Fisher, Al ; Joyce, Sam ; Marsh, Andrew
year 2012
title Progress Towards Multi-Criteria Design Optimisation Using Designscript With Smart Form, Robot Structural Analysis and Ecotect Building Performance Analysis"
source ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 47-56
summary Important progress towards the development of a system that enables multi-criteria design optimisation has recently been demonstrated during a research collaboration between Autodesk’s DesignScript development team, the University of Bath and the engineering consultancy Buro Happold. This involved integrating aspects of the Robot Structural Analysis application, aspects of the Ecotect building performance application and a specialist form finding solver called SMART Form (developed by Buro Happold) with DesignScript to create a single computation environment. This environment is intended for the generation and evaluation of building designs against both structural and building performance criteria, with the aim of expediently supporting computational optimisation and decision making processes that integrate across multiple design and engineering disciplines. A framework was developed to enable the integration of modeling environments with analysis and process control, based on the authors’ case studies and experience of applied performance driven design in practice. This more generalised approach (implemented in DesignScript) enables different designers and engineers to selectively configure geometry definition, form finding, analysis and simulation tools in an open-ended system without enforcing any predefined workflows or anticipating specific design strategies and allows for a full range of optimisation and decision making processes to be explored. This system has been demonstrated to practitioners during the Design Modeling Symposium, Berlin in 2011 and feedback from this has suggested further development.
keywords Design Optimisation , Scripting , Form Finding , Structural Analysis , Building Performance
series ACADIA
type normal paper
email robert.aish@autodesk.com
last changed 2013/01/09 10:06

_id acadia12_511
id acadia12_511
authors Borowski, Darrick ; Poulimeni, Nikoletta ; Janssen, Jeroen
year 2012
title Edible Infrastructures: Emergent Organizational Patterns for the Productive City
source ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 511-526
summary Edible Infrastructures is an investigation into a projective mode of urbanism which considers food as an integral part of a city's metabolic infrastructure. Working with algorithms as design tools, we explore the generative potential of such a system to create an urban ecology that: provides for its residents via local, multi-scalar, distributed food production, reconnects urbanites with their food sources, and de-couples food costs from fossil fuels by limiting transportation at all levels, from source to table. The research is conducted through the building up of a sequence of algorithms, beginning with the ‘Settlement Simulation’, which couples consumers to productive surface area within a cellular automata type computational model. Topological analysis informs generative operations, as each stage builds on the output of the last. In this way we explore the hierarchical components for a new Productive City, including: the structure and programming of the urban circulatory network, an emergent urban morphology based around productive urban blocks, and opportunities for new architectural typologies. The resulting prototypical Productive City questions the underlying mechanisms that shape modern urban space and demonstrates the architectural potential of mathematical modeling and simulation in addressing complex urban spatial and programmatic challenges.
keywords Urban Agriculture , Urban Ecologies and Food Systems , Productive Cities , Urban Metabolism , Computational Modeling and Simulation , Algorithmic/ Procedural Design Methodologies , Emergent Organization , Self-Organizing Systems
series ACADIA
type normal paper
email darrick.borowski@gmail.com
last changed 2013/01/09 10:06

_id ecaade2012_267
id ecaade2012_267
authors Caldas, Luísa G. ; Santos, Luís
year 2012
title Generation of Energy-Efficient Patio Houses with GENE_ARCH: Combining an Evolutionary Generative Design System with a Shape Grammar
source Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 459-470
summary GENE_ARCH is a Generative Design System that combines Pareto Genetic Algorithms with an advanced building energy simulation engine. This work explores its integration with a Shape Grammar, acting as GENE_ARCH’s shape generation module. The urban patio house typology is readdressed in a contemporary context, both by improving its energy-effi ciency standards, and by rethinking its role in the genesis of high-density urban areas, while respecting its specifi c spatial organization and cultural grounding. Field work was carried out in Marrakesh, surveying a number of patio houses which became the Corpus of Design, from where a Shape Grammar was extracted. The computational implementation of the patio house grammar was done within GENE_ARCH. The resulting program was able to generate new, alternative patio houses designs that were more energy effi cient, while respecting the traditional rules captured from the analysis of existing houses. After the computational system was fully implemented, it was possible to complete different sets of experiments. The first experiments kept more restrained rules, thus generating new designs that closer resembled the existing ones. The progressive relaxation of rules and constraints allowed for a larger number of variations to emerge. Analysis of energy results provide insight into the main patterns resulting from the evolutionary search processes, namely in terms of form factors of generated solutions, and urban densities achieved.
wos WOS:000330322400047
keywords Generative Design Systems; Genetic Algorithms; Shape Grammars; Patio Houses; Energy Efficiency
series eCAADe
email lgcaldas@gmail.com
last changed 2014/04/14 11:07

_id ecaade2012_152
id ecaade2012_152
authors Krieg, Oliver David; Mihaylov, Boyan; Schwinn, Tobias; Reichert, Steffen; Menges, Achim
year 2012
title Computational Design of Robotically Manufactured Plate Structures Based on Biomimetic Design Principles Derived from Clypeasteroida
source Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 531-540
summary The paper presents the current development of an ongoing research project about the integration of robotic fabrication strategies in computational design through morphological and functional principles derived from natural systems. Initially, a developed plate structure material system based on robotically fabricated fi nger joints is being informed by biomimetic principles from the sea urchin Clypeasteroida in order to be able to adapt effi ciently to its building environment. Consequently, the paper’s main focus lies on translating the biomimetic design principles into a computational design tool, also integrating fabrication parameters as well as structural and architectural demands. The design tool’s capability to integrate these parameters is shown by the design, development and realization of a full-scale research pavilion. The paper concludes with discussing the performative capacity of the developed material system and the introduced methodology.
wos WOS:000330320600056
keywords Biomimetics; Digital Simulation; Parametric Design; Robotic Manufacturing
series eCAADe
email oliver@davidkrieg.com
last changed 2014/04/14 11:07

_id sigradi2012_274
id sigradi2012_274
authors Maing, Minjung
year 2012
title Virtual Mock-up Simulation of Building Skins for Design to Fabrication Integration
source SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 467-470
summary With the growing demand for mock-up integration into late design and pre-construction phases, there is an increasing gap between the virtual design model of the building and the construction model. The gap is reinforced by lack of strong iterative exchanges between design and fabrication and consequently the construction of the building skin systems. This paper will discuss the research being conducted using virtual mock-ups as an earlier insertion of fabrication parameters into design process and presents a solution to bridge this gap. Studies of model integration will be introduced using component-based 3D-CAD modeling to link front and end user scenarios.
keywords virtual mock-up; fabrication; integration; building skin ; simulation
series SIGRADI
email maing@cuhk.edu.hk
last changed 2016/03/10 08:55

_id ecaade2012_209
id ecaade2012_209
authors Prousalidou, Elena
year 2012
title A Digital Model for Fabric Formwork Panels: Using Physical Data to Train the Digital Model
source Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 159-167
summary In the context of a wider inquiry on the integration of material properties and construction processes in computational models, this paper proposes a digital model for fabric formwork panels. Plaster cast in different types of fabric can produce a significant variation of resulting forms. The aim is to investigate whether data retrieved from physical models with 3D scanning techniques can improve the accuracy and efficiency of a simulation based on geometric principles, and better predict the behaviour of cast material in relation to the type of fabric. Setting up the computational model and choosing its parameters and constraints is based on the physical construction process, highlighting the relationship between material and form. As part of the cyclical exchange, evaluation of the digital model with physical testing demonstrates that the simulation can actually be trained by reducing the physical/ digital discrepancies.
wos WOS:000330320600016
keywords Fabric formwork; simulation; dynamic relaxation; 3d scanning; kinect
series eCAADe
email eprous@gmail.com
last changed 2014/04/14 11:07

_id ascaad2012_017
id ascaad2012_017
authors Simeone, Davide; Antonio Fioravanti
year 2012
title An Ontology-Based Template of User-Actor to Support Agent-Based Simulation in Built Environments
source CAAD | INNOVATION | PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 171-179
summary The behavior of a human being in a building, its activities, its interactions with it and with other people are certainly a highly complex phenomenon extremely hard to predict and evaluate. At the same time, the response of a built environment to future users’ needs is one of the key factors of its performance. The Agent-based Modeling paradigm is considered potentially the best way to represent human behavior but, in the building design field, its experiences are limited to representation of partial aspects of human behavior in discrete events. Currently, a more "extended" representation of human behavior able to offer an overview of the human activities related to the building ‘functioning’, is missing,. This lack is due to the complexity of interaction among users and built environment, and to the extensive knowledge, provided by different disciplines, needed to reliably represent it. The proposed research focuses on the construction of a general representation template of user-actor, easy to implement and flexible enough to structure the large amount of data affecting human behavior. The development of the ontology-based template shown in this paper can lead to a user-agent’s entity whose parameters and behavioral rules can encode and represent several ‘aspects’ of real users and their interactions with the other entities (building components, furniture, other people) in a built environment.
series ASCAAD
email davide.simeone@uniroma1.it
more http://www.ascaad.org/conference/2012/papers/ascaad2012_017.pdf
last changed 2012/05/15 18:46

_id sigradi2012_83
id sigradi2012_83
authors Valdes, Francisco; Sun, Yuming
year 2012
title Parametric Natural Ventilation Simulation with Real-time Geometric Feedback (Nat-Vent)
source SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 436-439
summary Nat-Vent is a modeling system to parametrically simulate natural ventilation of buildings in early stages of design. The Nat-Vent approach comprehends a set of architecture design tools that were connected to an equation solver through a Model Based System Engineering tool (SysML). SysML, which is a general purpose modeling language for systems engineering, is able to mathematically interoperate between architects and engineers while keeping model consistency between them. This implementation enhances the architectural side of design by offering a simple ventilation tool that can be used by architects and engineers, and also delivers geometric feedback from ventilation performance-based decisions.
keywords parametric modeling; building technology; natural ventilation simulation; interoperability in building design; Model Based System Engineering.
series SIGRADI
email fvaldes6@gatech.edu
last changed 2016/03/10 09:02

_id acadia12_199
id acadia12_199
authors Beorkrem, Chris ; Corte, Dan
year 2012
title Zero-Waste, Flat-Packed, Tri-Chord Truss: Continued Investigations of Structural Expression in Parametric Design"
source ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 199-208
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. 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. This paper will expand (greatly) upon previous research into bi-chord truss designs, developing a tri-chord truss, which is parametrically linked to its structural moment diagram. The cross section of each truss is formed based on the loading condition for each beam. This truss design has been developed through a thorough series of analytical models and tests performed digitally, to scale and in full scale. The tri-chord truss is capable of resisting rotational failures well beyond the capacity of the bi-chord designs previously developed. The results are complex, and elegant expressions of structural logics embodied in a tightly constrained functional design.
keywords Parametric Design , Structural Expression , Material constraints
series ACADIA
type normal paper
email cbeorkrem@uncc.edu
last changed 2013/01/09 10:06

_id caadria2012_008
id caadria2012_008
authors Schimek, Heimo; Emmanuel Ruffo Calderon Dominguez, Albert Wiltsche and Markus Manahl
year 2012
title Sewing timber panels: An innovative digitally supported joint system for self-supported timber plate structures
source Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 213–222
summary This paper focuses on the joint system of flat panels as parts of a freeform building. This topic is a key area of the ongoing founded research project, in which we investigate nonstandard shapes, realized with standard building materials, namely cross-laminated timber (CLT). We use different discretization algorithms to overlay arbitrary freeform surfaces with ornaments consisting of polygonal flat panels. We investigate a series of ornaments and their discretization results on different surfaces. In this paper, we will present and discuss a new timber-to-timber joint system that we developed exclusively for this project. We discuss the results of the load tests that we performed recently and we take a look at the construction dependent requirements of the joint system concerning the tolerances and the geometry and also, how these constraints inform the digital process. As we will discuss throughout the paper, in earlier publications we described the form finding process and the geometrical guidelines for the discretization of a desired freeform building using ornamental flat patterns. This paper moves one step further as the digital becomes physical and it is closely related to building construction and the computational design outset.
keywords Digital fabrication technology; computational algorithmic design; building construction; freeform optimisation; CLT joint system
series CAADRIA
email schimek@tugraz.at
last changed 2012/05/29 07:34

_id sigradi2012_125
id sigradi2012_125
authors Velasco, Maria Clara Betancourt; Alvarado, Rodrigo García; Villarreal, Lina Marcela Quintero
year 2012
title Uso de una herramienta computacional evolutiva para el diseño y optimización de vanos residenciales en el trópico [Use of an evolutionary computational tool for the design and optimization of residential openings in the tropic]
source SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 462-466
summary Facades have great impact in a house´s performance being directly linked to energetic consumption and comfort. Computing sciences propose the systematization of design processes, making it possible to determine an optimal configuration for a tropical building, in order to get a desired comfort performance, based on the implementation of parametric design and artificial intelligence. This research seeks sustainable design by implementing design guidelines, geometrical parameterization and its further optimization. Now it is possible from early stages of design to provide results that can benefit people generating comfort conditions.
keywords diseño paramétrico, algoritmos genéticos, optimización, confort, vanos
series SIGRADI
email mcbet@icesi.edu.co
last changed 2016/03/10 09:02

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