Seismic Response of Multistory Buildings with Self-Centering Energy Dissipative Steel Braces

This paper examines the seismic response of 2-, 4-, 8-, 12-, and 16-story steel framed buildings with self-centering energy dissipative (SCED) bracing members. The structures are assumed to be located in Los Angeles, California. Identical buildings equipped with buckling restrained braces (BRB) are...

Full description

Saved in:
Bibliographic Details
Published in:Journal of structural engineering (New York, N.Y.) N.Y.), 2008-01, Vol.134 (1), p.108-120
Main Authors: Tremblay, Robert, Lacerte, M, Christopoulos, C
Format: Article
Language:English
Subjects:
TECHNICAL PAPERS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper examines the seismic response of 2-, 4-, 8-, 12-, and 16-story steel framed buildings with self-centering energy dissipative (SCED) bracing members. The structures are assumed to be located in Los Angeles, California. Identical buildings equipped with buckling restrained braces (BRB) are also studied for comparison purposes. Incremental static analysis and nonlinear dynamic analysis under ground motion ensembles corresponding to three hazard levels were performed. The SCED frames generally experienced smaller peak story drifts, less damage concentration over the building height, and smaller residual lateral deformations compared to the BRB system. Higher floor acceleration peaks were observed in the SCED frames due to the sharper transitions between elastic and inelastic response assumed in the analysis. The study also indicated that higher design seismic loads may be needed for low-rise SCED and BRB frames in order to improve their collapse prevention performance.
ISSN:0733-9445
1943-541X
DOI:10.1061/(ASCE)0733-9445(2008)134:1(108)