Premium
Evaluation of factors influencing the inelastic seismic performance of torsionally asymmetric buildings
Author(s) -
Chandler A. M.,
Duan X. N.
Publication year - 1991
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290200107
Subject(s) - structural engineering , building code , code (set theory) , element (criminal law) , engineering , ductility (earth science) , computer science , physics , political science , law , creep , set (abstract data type) , thermodynamics , programming language
Abstract This paper addresses some fundamentally contradictory conclusions drawn by Tso and Ying 1 and the authors 2 regarding the additional seismic ductility demand in asymmetric building structures and the adequacy of certain code torsional provisions. It also clarifies a number of issues arising from the different approaches employed in the two studies. The Mexico 76 and 87 code torsional provisions are taken as examples. Results show that the structural element at the stiff edge is the more critical and that the Mexico 76 code torsional provisions (among others) are inadequate, substantially underestimating the strength demand of this element. On the other hand, the Mexico 87 code torsional provisions are found to be over‐conservative. Recommendations are also given for improving the form and effectiveness of these code torsional provisions.