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

_id	ecaade2009_113
id	ecaade2009_113
authors	Henriques, Gonçalo Castro; Duarte, José Pinto; Brito, António Carvalho
year	2009
title	TetraScript: Development of an Integrated System Capable of Optimizing Light in a Circumscribed Space
doi	https://doi.org/10.52842/conf.ecaade.2009.031
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 31-38
summary	The purpose of this research is to develop a process capable of optimizing the capture of light in a circumscribed space, using a responsive system of skylights. Research is focused on the design of irregular dome-like pavilion spaces circumscribed by curved surfaces, but the envisioned process might be applied to other functional, formal, and spatial typologies. The design of the pavilion starts with the generation of a surface, later tessellated into a matrix of skylights depending on the geographic location and sun orientation. In the constructed pavilion, the skylights react to the variation of daylight intensity during the day to satisfy specified internal lighting needs. Simultaneously, the integration of conception and fabrication using digital tools (CAD-CAM) facilitates the construction of a non-standard, parametric geometry, thereby diminishing the costs of production and allowing for personalization, while assuring global sustainability.
wos	WOS:000334282200002
keywords	Scripting, digital fabrication, automation, responsive system
series	eCAADe
email
last changed	2022/06/07 07:49

_id	caadria2009_073
id	caadria2009_073
authors	Dave, Bharat; Jules Moloney
year	2009
title	Augmenting Time and Space in Design Inquiries
doi	https://doi.org/10.52842/conf.caadria.2009.523
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 523-532
summary	Our research revolves around developing applications of augmented reality technologies to support changing temporal contexts in architectural design. In order to ground this research in contemporary professional culture, we first undertook a structured data gathering exercise, analysis of which will inform development of new AR technologies and tools to support temporal visualisation of architectural designs. This paper reports on the first phase of this project in which we undertook extended conversations and documentation of 22 design offices that represent practices of varying sizes and competencies. The intention of this data collection exercise was to map out spectrum of design issues and representations that specifically revolve around changing temporal or spatial contexts in design. This paper reports collection and preliminary analysis of data intended for developing specifications of future AR applications.
keywords	augmented reality; design representations; spatio-temporal design; contextual design
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	acadia10_183
id	acadia10_183
authors	Ireland, Tim
year	2010
title	Stigmergic Planning
doi	https://doi.org/10.52842/conf.acadia.2010.183
source	ACADIA 10: LIFE in:formation, On Responsive Information and Variations in Architecture [Proceedings of the 30th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-4507-3471-4] New York 21-24 October, 2010), pp. 183-189
summary	This paper presents an application of swarm intelligence towards the problem of spatial configuration. The methodology classifies activities as discrete entities, which self-organise topologically through associational parameters: an investigation of emergent route formation and spatial connectivity based on simple agent and pheromone interaction, coupled with the problem of ‘loose’ rectangular geometric assembly. A concept model sniffingSpace (Ireland, 2009) developed in Netlogo (Willensky, 1999), which established the self-organising topological capacity of the system, is extended in Processing (Fry & Rea, 2009) to incorporate rectangular geometry towards the problem of planning architectural space.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:50

_id	ijac20097403
id	ijac20097403
authors	Voyatzaki, Maria
year	2009
title	Computing Architectural Materiality: The Hyper-natural Aspirations of the New Paradigm
source	International Journal of Architectural Computing vol. 7 - no. 4, 555-564
summary	The article is based on the premise that in the history of architecture there has always been an intimate relationship between architectural ideas and the various perceptions of the alive. On this premise the article focuses on and investigates the relationship of the contemporary architectural paradigm labeled as digital, parametric or morphogenetic with the alive. Its objective is to reveal its new profound reasonings which lead and nourish its creative expression; to articulate its new ethos with the extended use of advanced information technologies for the creation of architectural forms, but also for the generation of a broad spectrum of new building materials with properties predefined by the architect. The immaterial, the hybrid, the composite, the mutable, the transformable, the interactive, the dynamic, do not only appear as properties of certain architectural creations or building materials, but also as values expressing this ethos and declaring a new relationship or a reconsidered admiration of the natural, the living, the alive. The article concludes that the new hyper-natural aspiration of the contemporary paradigm constitutes a new dynamic expression of architectural materiality and its guiding intellect.
series	journal
last changed	2010/09/06 08:02

_id	cf2009_245
id	cf2009_245
authors	Ireland, Tim
year	2009
title	Emergent space diagrams: The application of swarm intelligence to the problem of automatic plan generation
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 245-258
summary	This work investigates how diagrams of architectural space might self-organize relative to specific associational parameters to generate diagrams of spatial organization. The premise is that buildings are systems of spatial relations defined by the dynamic interactions of various autonomous spatially discrete entities. Looking to swarm intelligence, the focus here is on the problem of circulation and explicit spatial arrangement. The paper reports an investigation of emergent route formation and spatial connectivity based on simple agent and pheromone interaction. An array of ant colonies defines the system. A colony’s nest represents a specific space. Space-agents transmit information throughout the space-colony population, defining an emergent communication network.
keywords	Agents, pheromones, ant colonies, spatial configuration, emergence
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	cf2009_214
id	cf2009_214
authors	Ireland, Tim
year	2009
title	Sniffing space II: The use of artificial ant colonies to generate circulation patterns in buildings
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 214-227
summary	This model uses agents, which lay and respond to alternative pheromone trails to define circulation routes between specific locations. There is no a priori knowledge embedded in the model. The communication network generated between the colonies represents a routing structure, which is emergent and dynamic. The intended application is for building types that are specifically defined by complex circulation parameters, such as airports, hospitals and schools. Proposed here, is a generative process in which the circulation patterns between specific destinations and the spatial arrangement emerges in a process of mutual compatibility.
keywords	Agents, pheromones, circulation, building typologies, stigmergy
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	acadia09_252
id	acadia09_252
authors	Baker, William; Beghini, Alessandro; Carrion, Juan; Tort, Cenk
year	2009
title	Scripting for a New Architecture: Studies in Structural Optimization
doi	https://doi.org/10.52842/conf.acadia.2009.252
source	ACADIA 09: reForm( ) - Building a Better Tomorrow [Proceedings of the 29th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-9842705-0-7] Chicago (Illinois) 22-25 October, 2009), pp. 252-254
summary	This paper describes how scripting has been successfully used by structural engineers at Skidmore, Owings & Merrill, LLP (SOM) to rediscover, apply, and develop several tools for structural optimization. Some of these methods are described in this paper for applications to high-rise buildings and long-span roof structures
series	ACADIA
type	Short paper
email
last changed	2022/06/07 07:54

_id	cf2009_472
id	cf2009_472
authors	Ciblac, Thierry
year	2009
title	L’analyse dimensionnelle comme aide à l’optimisation en phase de conception architecturale: applications à des cas de structures; Dimensional analysis as support toward optimization in architectural conception phase: applications to structural cases
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 472- 486
summary	One of the research ways carried out in the ARIAM-LAREA laboratory aims at giving to architects computing tools for early evaluation of structures. A particular approach uses dimensional analysis and similitude properties in order to define parameter variation laws. Such laws are illustrated by analytical cases using the theory of strength of materials. For complex structures, a heuristic is proposed to give indications of parameter variation influence on mechanical behavior. Some applications are presented for early determination of structural size and limit values, using computations by finite element method.
keywords	Structure, design, dimensional analysis, similitude
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	ecaade2022_367
id	ecaade2022_367
authors	Doumpioti, Christina and Huang, Jeffrey
year	2022
title	Field Condition - Environmental sensibility of spatial configurations with the use of machine intelligence
doi	https://doi.org/10.52842/conf.ecaade.2022.2.067
source	Pak, B, Wurzer, G and Stouffs, R (eds.), Co-creating the Future: Inclusion in and through Design - Proceedings of the 40th Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2022) - Volume 2, Ghent, 13-16 September 2022, pp. 67–74
summary	Within computational environmental design (CED), different Machine Learning (ML) models are gaining ground. They aim for time efficiency by automating simulation and speeding up environmental performance feedback. This study suggests an approach that enhances not the optimization but the generative aspect of environmentally driven ML processes in architectural design. We follow Stan Allen's (2009) idea of 'field conditions' as a bottom-up phenomenon according to which form and space emerge from local invisible and dynamic connections. By employing parametric modeling, environmental analysis data, and conditional Generative Adversarial Networks [cGAN] we introduce a generative approach in design that reverses the typical design process of going from formal interpretation to analysis and encourages the emergence of spatial configurations with embedded environmental intelligence. We call it Intensive-driven Environmental Design Computation [IEDC], and we employ it in a case study on a residential building typology encountered in the Mediterranean. The paper describes the process, emphasizing dataset preparation as the stage where the logic of field conditions is established. The proposed research differentiates from cGAN models that offer automatic environmental performance predictions to one that spatial predictions stem from dynamic fields.
keywords	Field Architecture, Environmental Design, Generative Design, Machine Learning, Residential Typologies
series	eCAADe
email
last changed	2024/04/22 07:10

_id	caadria2009_207
id	caadria2009_207
authors	Fasoulaki, Eleftheria E.
year	2009
title	Towards Integrated Design
doi	https://doi.org/10.52842/conf.caadria.2009.013
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 13-22
summary	This paper examines a different design approach called integrated. The term “integrated” has a dual utilization in this study. The first use refers to the integration of form and building performance. The second use refers to the integration of interrelated and diverse building performances involving multiple disciplines. The integrated design approach analyzes and evaluates several interrelated design systems involving different disciplines in the early design phase. The goal of the approach is the generation of design alternatives guided simultaneously by two basic objectives: the aspiration for form exploration and the satisfaction of the performances of interrelated systems.
keywords	Generative Algorithms: Building Performances; Multiple Building Disciplines; Optimization and Simulation Techniques; Coupled Building Systems
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	ijac20097402
id	ijac20097402
authors	Grobman, Yasha Jacob; Abraham Yezioro; Isaac Guedi Capeluto
year	2009
title	Computer-Based Form Generation in Architectural Design - a Critical Review
source	International Journal of Architectural Computing vol. 7 - no. 4, 535-554
summary	The idea of using computers for form generation and evaluation in the architectural design process has been put forward already in the early days of computers. However, as opposed to computer aided drafting, the generation of form, its optimization and manufacturing has not been widely accepted and implemented by practitioners. The paper critically reviews the research and state of the practice experiments that has been done in this field and develops an argument regarding the possibilities and limitations of computer-based form generation in the architectural design process.
series	journal
last changed	2010/09/06 08:02

_id	ecaade2009_129
id	ecaade2009_129
authors	Hemmerling, Marco
year	2009
title	Twister: An Integral Approach towards Digital Design and Construction
doi	https://doi.org/10.52842/conf.ecaade.2009.299
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 299-304
summary	The paper outlines the relevance of computational geometry within the design and production process of architecture. Based on the case study “Twister”, the digital chain - from the initial form-finding to the final realization of spatial concepts - is discussed in relation to geometric principles. The association with the fascinating complexity, which can be found in nature and its underlying geometry was the starting point for the project presented in the paper. The translation of geometric principles into a three-dimensional digital design model was followed by a process of transformation and optimization of the initial shape, that integrated aesthetic, spatial and structural qualities as well as aspects of material properties and conditions of production.
wos	WOS:000334282200036
keywords	Geometry, 3D modeling, rapid prototyping, photogrammetry, digital fabrication
series	eCAADe
email
last changed	2022/06/07 07:49

_id	ecaade2009_156
id	ecaade2009_156
authors	Karzel, Rüdiger; Matcha, Heike
year	2009
title	Experimental Design-Build: Teaching Parameter-based Design
doi	https://doi.org/10.52842/conf.ecaade.2009.153
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 153-158
summary	We present a student design class, in which experimental full-scale parametric objects are planned and built. The class explores the possibilities of digital production chains in which CAAM techniques driven by parametric modeling can expand the range of possibilities for designing and producing architecture. We show how those possibilities and techniques can be integrated into architectural education in facilitating a transition from digital design to actual object. The didactic challenge represents teaching a methodological approach towards parameter-based design, its transfer into a software program and the choice of construction and production method.
wos	WOS:000334282200018
keywords	Prototyping, parametric design, student design build projects, CAAM methods, evolutionary optimization
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ascaad2009_thorsten_loemker
id	ascaad2009_thorsten_loemker
authors	Loemker, Thoreten M. and Albrecht Degering
year	2009
title	How much is it? About the use of the element method in conjunction with optimization techniques
source	Digitizing Architecture: Formalization and Content [4th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2009) / ISBN 978-99901-06-77-0], Manama (Kingdom of Bahrain), 11-12 May 2009, pp. 5-15
summary	It is obvious that the preparation and compliance with cost estimates for a proposed architectural design is indispensable for successful realization of building projects. A variety of methods exists that can be used by the architect to achieve this objective. However, most of these methods are regularly not used until the design is completed. In many cases this procedure leads to cost overruns. Hence, our paradigm is to estimate the total building costs prior to the generation of detailed designs and thus use the costs of building elements as design parameters right from the beginning to produce design solutions which entail the least possible costs. For this purpose we invert the customary process through the use of building element costs as a means for the automatic generation of monetarily assessable design solutions. For various reasons we concentrate on the design of housing projects. The methodology however, can be adopted to any other kind of building typology.
series	ASCAAD
email
last changed	2009/06/30 08:12

_id	ecaade2009_078
id	ecaade2009_078
authors	Lyon, Eduardo
year	2009
title	Digital Fabrication and Component Optimization Using DFM: Integrating Two-dimensional Cutting and Three-dimensional Milling in Wood Panel Fabrication
doi	https://doi.org/10.52842/conf.ecaade.2009.565
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 565-572
summary	This research explores new ways to integrate manufacturing knowledge in to design phases. Through the use of design for manufacturing (DfM) concept, and looking at relations between its potential application in component design and its implementation using digital manufacturing technologies, the author implemented a DfM model that varies from previous models by incorporated learning in the process. This process was based on; a knowledge systematization process; and the incremental development and refinement of design heuristics and metrics. Subsequently the attempt on this research is twofold. One is to realize a process to capture and organize manufacturing knowledge, and second to organize that knowledge and make it available as a DfM model for component design using specific CNC technology.
wos	WOS:000334282200068
keywords	Design Computing, design for manufacturing, knowledge based design, digital manufacturing
series	eCAADe
email
last changed	2022/06/07 07:59

_id	acadia09_144
id	acadia09_144
authors	Miller, Nathan
year	2009
title	Parametric Strategies in Civic Architecture Design
doi	https://doi.org/10.52842/conf.acadia.2009.144
source	ACADIA 09: reForm( ) - Building a Better Tomorrow [Proceedings of the 29th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-9842705-0-7] Chicago (Illinois) 22-25 October, 2009), pp. 144-152
summary	Using several NBBJ civic projects as case studies, this paper provides an overview of how NBBJ’s Los Angeles design studio is leveraging parametric and generative processes for the design of projects such as stadiums and exposition halls. A combination of ambitious intent and fast project schedules necessitates the use of advanced parametric tools to quickly solve complex problems, generate unique features, and automate parts of the design process. Designers will utilize digital tools for a variety of purposes, which can be classified under two general categories. The first and most common application of the technology is within the category of rationalization and optimization. The tool, in this case, is limited to the role of a production device that aids the designer in efficiently solving complex design problems. In more unique projects, the advanced technology acts as a generative tool and is an integral part of a working design methodology. In this case, the design technology becomes more than just a tool at the designer’s disposal. Rather, it has the potential to act as a critical lens for identifying new possibilities in the architecture.
keywords	Parametric design, complexity, stadium, scripting
series	ACADIA
type	Normal paper
email
last changed	2022/06/07 07:58

_id	ecaade2009_039
id	ecaade2009_039
authors	Papapavlou, Aikaterini; Turner, Alasdair
year	2009
title	Structural Evolution: A Genetic Algorithm Method to Generate Structurally Optimal Delaunay Triangulated Space Frames for Dynamic Loads
doi	https://doi.org/10.52842/conf.ecaade.2009.173
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 173-180
summary	This paper presents an evolutionary algorithm that draws its power from the literal interpretation of the natural system’s reproductive process at a microscopic scale with the scope of generating optimal Delaunay triangulated space frames for dynamic loads. The algorithm repositions a firm number of nodes within a space envelope, by establishing Delaunay tetrahedra and, consequently, creating adaptable optimised space frame topologies. The arbitrarily generated tetrahedralised structure is compared against a canonical designed one and the results of this comparison indicate that the method proposed has advantageous properties and is capable of generating an optimum structure that exceeds statically the performance of an engineered tetrahedralised space frame.
wos	WOS:000334282200021
keywords	Genetic Algorithms, optimization, delaunay triangulation, space frame
series	eCAADe
email
last changed	2022/06/07 08:00

_id	ecaade2009_034
id	ecaade2009_034
authors	Shepherd, Paul
year	2009
title	Digital Architectonics in Practice: Aarhus Botanical Garden Hothouse Competition
doi	https://doi.org/10.52842/conf.ecaade.2009.673
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 673-680
summary	Digital Architectonics is a term which refers to the application of digital technology to the architectural design process. This paper presents a new Digital Architectonics software tool, which allows various methods of 3D modeling, formfinding and optimization to be combined to generate and develop concept- and scheme-design options. The practical use of the software is demonstrated through the case study of the recent architectural competition to design a new hothouse for the Aarhus University Botanical Garden.
wos	WOS:000334282200081
keywords	Digital Architectonics, subdivision, optimization, formfinding, Aarhus
series	eCAADe
email
last changed	2022/06/07 07:56

_id	cf2011_p060
id	cf2011_p060
authors	Sheward, Hugo; Eastman Charles
year	2011
title	Preliminary Concept Design (PCD) Tools for Laboratory Buildings, Automated Design Optimization and Assessment Embedded in Building Information Modeling (BIM) Tools.
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 451-476.
summary	The design of laboratory buildings entails the implementation of a variety of design constraints such as building codes; design guidelines and technical requirements. The application of these requires from designers the derivation of data not explicitly available at early stages of design, at the same time there is no precise methodology to control the consistency, and accuracy of their application. Many of these constraints deal with providing secure environmental conditions for the activities inside laboratories and their repercussions both for the building occupants and population in general, these constraints mandate a strict control over the building‚Äôs Mechanical Equipment (MEP), in particular the Heating Ventilating and Air Conditioning (HVAC) system. Due to the importance of these laboratory designers are expected to assess their designs not only according spatial relationships, but also design variables such as HVAC efficiency, air pressure hierarchies, operational costs, and the possible implications of their design decisions in the biological safety of the facility. At this point in time, there are no practical methods for making these assessments, without having constant interaction with HVAC specialists. The assessment of laboratory design variables, particularly those technical in nature, such as dimensioning of ducts or energy consumption are usually performed at late stages of design. They are performed by domain experts using data manually extracted from design information, with the addition of domain specific knowledge, the evaluation is done mostly through manual calculations or building simulations. In traditional practices most expert evaluations are performed once the architectural design have been completed, the turn around of the evaluation might take hours or days depending on the methods used by the engineer, therefore reducing the possibility for design alternatives evaluation. The results of these evaluations will give clues about sizing of the HVAC equipment, and might generate the need for design reformulations, causing higher development costs and time delays. Several efforts in the development of computational tools for automated design evaluation such as wheel chair accessibility (Han, Law, Latombe, Kunz, 2002) security and circulation (Eastman, 2009), and construction codes (ww.Corenet.gov.sg) have demonstrated the capabilities of rule or parameter based building assessment; several computer applications capable of supporting HVAC engineers in system designing for late concept or design development exist, but little has been done to assess the capabilities of computer applications to support laboratory design during architectural Preliminary Concept Design(PCD) (Trcka, Hensen, 2010). Developments in CAD technologies such as Building Information Modeling (BIM) have opened doors to formal explorations in generative design using rule based or parametric modeling [7]. BIM represents buildings as a collection of objects with their own geometry, attributes, and relations. BIM also allows for the definition of objects parametrically including their relation to other model objects. BIM has enabled the development of automated rule based building evaluation (Eastman, 2009). Most of contemporary BIM applications contemplate in their default user interfaces access to design constraints and object attribute manipulations. Some even allow for the application of rules over these. Such capabilities make BIM viable platforms for automation of design data derivation and for the implementation of generative based design assessment. In this paper we analyze the possibilities provided by contemporary BIM for implementing generative based design assessment in laboratory buildings. In this schema, domain specific knowledge is embedded in to the BIM system as to make explicit design metrics that can help designers and engineers to assess the performance of design alternatives. The implementation of generative design assessments during PCD can help designers and engineers to identify design issues early in the process, reducing the number of revisions and reconfigurations in later stages of design. And generally improving design performance.
keywords	Heating ventilating and Air Conditioning (HVAC), Building Information Models (BIM), Generative Design Assessment
series	CAAD Futures
email
last changed	2012/02/11 19:21

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