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

id cf2011_p020
authors Kabre, Chitrarekha
year 2011
title A Computer Aided Design Model for Climate Responsive Dwelling Roof
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. 315-332.
summary Computer-Aided Design models have generated new possibilities in the sustainable design of buildings. Computer models assisting different aspects of architectural design have been developed and used for several decades. A review of contributions of computing to architectural design is given by Gero. Most of the conventional simulation computer programs do not actively support design development and optimization, specially at the formative design stages. It is well established that most decisions that affect comfort and building energy use occur during the formative design stages of the project. Furthermore, the efforts required to implement those decisions at the beginning of the design process are small compared to the effort that would be necessary later on in the design process. Therefore, if sustainable design issues are going to receive an appropriate level of consideration at the beginning of the design process, they must be presented in a way which is useful to the architect and fits with other things the architect is considering at that time. Design is seen as a problem-solving process of searching through a space of design solutions. The process of finding a solution to a design problem involves, identifying one or more objectives, making design decisions based on the objectives, predicting and evaluating the performance to find the acceptable decisions. Each of these activities can be performed inside or outside the formal model. In designing a roof, an architect or building designer has to make many decisions on the materials. The arrangement of these materials determines the aesthetic appearance of the roof and the house. Other considerations that affect the choice of roofing materials are thermal performance, rain, fire protection, cost, availability and maintenance. Recyclability of materials, hazardous materials, life-cycle expectancy, solutions, and design options as they relate to the environment also need to be considered. Consequently, the design of roof has become quite a complex and multifaceted problem. The principal need is for a direct design aid which can generate feasible solutions and tradeoff performance in conflicting requirements and prescribe the optimum solution. This paper presents a conceptual Computer Aided Design model for dwelling roof. It is based on generation and optimization paradigms of Computer Aided Design; which is diametrically opposite to conventional simulation. The design of roof (design goal) can be defined in terms of design objective as "control radiant and conduction heat." This objective must be satisfied to achieve the design goal. The performance variables, such as roof ceiling surface temperature or new thermal performance index (TPI*) must acquire values within certain ranges which will satisfy the objective. Given the required inputs, this computer model automatically generates prescriptive quantitative information to design roof to achieve optimum thermal comfort in warm humid tropics. The model first generates feasible solutions based on the decision rules; next it evaluates the thermal performance of the roof taking into account design variables related to the buildingé─˘s roof and finally it applies numerical optimization techniques to automatically determine the optimum design variables, which achieve the best thermal performance. The rational and methodology used to develop the proposed model is outlined and the implementation of model is described with examples for climatic and technological contexts of India and Australia.
keywords Computer aided design, sustainable design, generation, optimization, dwelling roof, thermal performance
series CAAD Futures
email crekha969@gmail.com
full text file.pdf (820,115 bytes)
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100%; open Cohon, J.L. (1978) Find in CUMINCAD Multiobjective Programming and Planning , Academic Press, New York
100%; open Coyne, R.D., Rosenman, M.A., Radford, A.D., Balachandran, M. & Gero, J.S. (1990) Find in CUMINCAD Knowledge-Based Design Systems , Addison Wesley, Reading, Massachusetts
100%; open Gero, J.S. (1983) Find in CUMINCAD Computer aided architectural design - past, present and future , Architectural Science Review 26 (1) : 2-5
100%; open Goldberg, D.E. (1989) Find in CUMINCAD Genetic algorithm in search, optimization and machine learning , Addison Wesley
100%; open Kabre, C. (2008) Find in CUMINCAD Computer aided design of climate responsive dwelling (roofs) in the climatic and technological context of India and Australia , Ph.D. Thesis, Department of Architecture, University of Queensland, Brisbane, Australia
100%; open Kabre, C. (2010) Find in CUMINCAD A new thermal performance index for dwelling roofs in the warm humid tropics , Building and Environment 45 : 727-738
100%; open Kalay, Y.E. (1999) Find in CUMINCAD The future of CAAD - from computer aided design to computer-aided collaboration , Kalay, Y.E. (Ed.). Computers in Building: Proceedings of the Eight International Conference on Computer Aided Architectural Design Futures (CAAD Futures) held in Atlanta, Georgia, USA 7-8th June1999, Kluwer Academic Publishers: 13-30
100%; open Khemlani, L. (1995) Find in CUMINCAD GENWIN: A generative computer tool for window design in energy-conscious architecture , Building and Environment 30 (1) : 73-81
100%; open Mahdavi, A. (1993) Find in CUMINCAD "Open" simulation environments: a "preference-based" approach , Flemming U, Wyk S. Van (eds.), Proc. of 5th Int. Conf. CAAD Futures Pittsburgh, 7-10 July 1993, North-Holland, Amsterdam : 195-214
100%; open Manning, P. & Mattar, S. (1992) Find in CUMINCAD A preliminary to development of expert systems for total design of entire buildings , Kalay YE (ed.) Evaluating and Predicting Design Performance, Wiley Interscience, New York : 215-238
100%; open Marsh, A. (2004) Find in CUMINCAD The optimization of stadium roof glazing for cost and solar access using built form generation based on performance optimized solutions to tightly defined design problems , 21st International conference on Passive and Low Energy Architecture, Eindhoven, 19-22 September: 1016-1022
100%; open Marsh, A. (2008) Find in CUMINCAD Generative and performative design: a challenging new role for modern architects , The Oxford conference, WIT Press, session keynote
100%; open Mitchell, W.J. (1977) Find in CUMINCAD Computer Aided Architectural Design , Van Nostrand Reinhold, New York
100%; open Mitchell, W.J. (1990) Find in CUMINCAD The Logic of Architecture: Design, Computation, and Cognition , The MIT Press, Cambridge, Massachusetts
100%; open Mitchell, W.J. (1994) Find in CUMINCAD Three paradigms of computer-aided design , Automation in Construction 3(2-3) : 239-245
100%; open Newell, A. & Simon, H.A. (1972) Find in CUMINCAD Human Problem Solving , Prentice-Hall
100%; open Radford, A.D. & Gero, J.S. (1988) Find in CUMINCAD Design by Optimization in Architecture , Building and Construction, Van Nostrand Reinhold, New York
100%; open Radford, A.D. & Gero, J.S. (1988) Find in CUMINCAD Design by Optimization in Architecture , Building and Construction, Van Nostrand Reinhold, New York
100%; open Shaviv, E., Yezioro, A., Capeluto, I.G., Peleg, U.J. & Kalay, Y.E. (1996) Find in CUMINCAD Simulations and knowledge-based computer aided architectural design (CAAD) systems for passive and low energy architecture , Energy and Buildings 23 : 257-269
100%; open Shaviv, E. (1975) Find in CUMINCAD A method for the design of fixed external sun shades , Build International 8 : 121-150

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