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Stiffness-based Optimal Design of Shear Wall-Frame Structure System using Sensitivity Analysis  

Lee Han-Joo (청주대학교 건축공학부)
Kim Ho-Soo (청주대학교 건축공학부)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.19, no.1, 2006 , pp. 63-71 More about this Journal
Abstract
This study presents the effective stiffness-based optimal technique to control Quantitatively lateral drift for shear wall-frame structure system using sensitivity analysis. To this end, the element stiffness matrices are constituted to solve the compatibility problem of displacement degree of freedom between the frame and shear wall. Also, lateral drift constraint to introduce the approximation concept that can preserve the generality of the mathematical programming and can effectively solve the large scaled problems is established. And, the section property relationships for shear wall and frame members are considered in order to reduce the number of design variables and differentiate easily the stiffness matrices. Specifically, constant-shape assumption which is uniformly varying in size during optimal process is applied in frame structure. The thickness or length of shear wall can be changed depending on user's intent. Two types of 20 story shear wall-frame structure system are presented to illustrate the features of the stiffness-based optimal design technique.
Keywords
shear wall-frame structure system; stiffness-based optimal design; lateral drift control; sensitivity analysis; resizing technique;
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