Optimal performance-based design of wind sensitive tall buildings considering uncertainties

Authors:
M. F. Huang;C. M. Chan;W. J. Lou
Affiliations:
Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, PR China;Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong;Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, PR China
Venue:
Computers and Structures
Year:
2012

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Abstract

Two major wind-induced performance indexes of tall buildings excited by dynamic and random wind could be the lateral drift and acceleration. The wind-induced performance-based design optimization framework has been developed to take into account uncertainties in the vibration related occupant comfort problems of tall buildings. An innovative decoupling strategy is adopted to transform the original coupled reliability-based optimization problem into two separated sub problems, which are then solved using the inverse reliability approach and Optimality Criteria (OC) algorithm respectively. A 60-story building example is employed to demonstrate the effectiveness and practicality of the proposed reliability performance-based design optimization method.