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Type: Journal article
Title: Optimization design of tall buildings under multiple design criteria
Author: Ng, C.
Lam, H.
Citation: International Journal of Applied Mathematics and Mechanics, 2005; 1(4):35-48
Publisher: GBS Publishers & Distributors
Issue Date: 2005
ISSN: 0973-0184
Statement of
C. T. Ng and H. F. Lam
Abstract: Due to the complexity of modern tall building structures, structural design following the traditional trial-and-error approach makes the design process extremely time-consuming and the resultant design uneconomic. This paper studies the feasibility in formulating the structural design problem as a minimization problem and solving it by numerical optimization algorithms. With the help of the numerical optimization algorithms, the trial-and-error design process can be carried out in a systematic and, even more important, automatic manner. In this study, the design process is formulated as the minimization of the total weight of the building under a series of constraints, which are designed to consider different design criteria. The considered design criteria include the strength, top and inter-storey drifts, frequency, and stability requirements specified in the British Standard and code of practice in Hong Kong. A large-scale building example is employed in the case study to illustrate the structural optimization design approach. The results of case study show that the structural optimization design approach provides a valuable tool for engineers to obtain a feasible and economical design even when the initial design violates some of the design criteria.
Keywords: Optimization design
Tall buildings
Numerical optimization algorithm
Design criteria.
Rights: Copyright status unknown
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Appears in Collections:Aurora harvest 5
Civil and Environmental Engineering publications

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