NEHRP Clearinghouse

Title
Accidental and Natural Torsion in Earthquake Response and Design of Buildings.
File
PB94203627.pdf
Author(s)
De la Llera, J. C.; Chopra, A. K.
Source
National Science Foundation, Washington, DC., June 1994, 316 p.
Identifying Number(s)
UCB/EERC-94/07
Abstract
The report is divided into two parts. In part I, the increase in building response due to accidental torsion is evaluated with the objective of developing an improved procedure to account for these effects in building analysis. In part II, the nonlinear torsional response of single and multistory asymmetric buildings is considered, with the objective of developing a simple conceptual framework in order to understand the earthquake performance of different asymmetric structural configurations, and to develop a simplified method for nonlinear analysis of asymmetric buildings. A new simplified model for inelastic seismic analysis and design of asymmetric structures is also formulated.
Keywords
; Seismic design; Torsion; Vibration; Mathematical models; Lateral pressure; Buildings; Earthquake engineering; Differential equations; Dynamic structural analysis