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

PDF papers
id acadia08_214
authors Schlueter, Arno; Frank Thesseling
year 2008
title Balancing Design and Performance in Building Retrofitting: A Case Study Based on Parametric Modeling
source Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 214-221
summary Retrofitting the existing building stock will become one of the key fields of action for architects in the future. Due to the raised awareness of CO2 emissions related to the energy consumption of buildings, architects have to increasingly consider parameters influencing the energy performance of their retrofit designs. This is a complex task especially in the early design stages as multiple dependencies between building form, construction and technical systems influence overall energy performance. The inability to cope with this complexity often leads to simple solutions such as the application of massive insulation on the outside, neglecting aesthetic expression and design flexibility. Digital models storing multidisciplinary building information make it possible to include performance parameters throughout the architectural design process. In addition to the geometric parameters constituting the form, semantic and topological parameters define building element properties and their dependencies. This offers an integrated view of the building. We present a case study utilizing mulit-parametric fašade elements within a building information model for an integrated design approach. The case study is based on a retrofit project of a multi-family house with very poor energy performance. Within a design workshop a parametric building model was used for the development of the designs. An integrated analysis tool allowed an immediate performance assessment without importing or exporting building data. The students were able to freely define geometric and performance parameters to develop their design solution. Balancing between formal expression and energy performance lead to integrated design sketches, resulting in surprising solutions for the given design task.
keywords BIM; Integrative; Parametric; Performance; Sustainability
series ACADIA
full text file.pdf (1,647,242 bytes)
references Content-type: text/plain
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100%; open Brahme, R. , Mahdavi, A. , Lam, K. , Gupta, S. (2001) Find in CUMINCAD Complex building performance analysis in early stages of design , Seventh International IBPSA Conference. Rio de Janeiro, Brazil: IBPSA

100%; open Eastman, C. (1999) Find in CUMINCAD Building product models: computer environments supporting design and construction , Boca Raton: CRC

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