Seismic Code Analysis of Buildings without Locating Centers of Rigidity
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Volume 119, Issue 10
Abstract
Static force procedures of most building codes require that the lateral earthquake force at each floor level of an asymmetric‐plan building be applied eccentrically from the centers of rigidity. To implement such procedures, it seemed necessary in the past to determine the locations of the centers of rigidity, an often confusing and cumbersome process. This paper presents a new approach for code lateral force analysis of asymmetric‐plan buildings without locating the centers of rigidity. This procedure combines the results from three static analyses, which can be implemented directly on most commercially available computer programs for analysis of multistory buidings. The work presented in this paper should dispel the long‐held view that locations of the centers of rigidity must be determined to implement the code procedure, thereby removing one of the major difficulties in building analysis.
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Information
Published In
Journal of Structural Engineering
Volume 119 • Issue 10 • October 1993
Pages: 3039 - 3055
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Nov 20, 1992
Published online: Oct 1, 1993
Published in print: Oct 1993
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