Low-Cycle Fatigue Tests of a Type of Buckling Restrained Braces

被引：47

作者：

Usami, Tsutomu ^{[1
]}

Wang, Chunlin ^{[1
]}

Funayama, Jyunki ^{[1
]}

机构：

[1] Meijo Univ, Dept Civil Engn, Nagoya, Aichi, Japan

来源：

PROCEEDINGS OF THE TWELFTH EAST ASIA-PACIFIC CONFERENCE ON STRUCTURAL ENGINEERING AND CONSTRUCTION (EASEC12) | 2011年 / 14卷

关键词：

Damage Control Seismic Design; High Performance Seismic Damper; Buckling Restrained Braces; Low-cycle Fatigue; Steel Bridges; PERFORMANCE; BRIDGES;

D O I：

10.1016/j.proeng.2011.07.120

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In order to satisfy fatigue performance requirements of High Performance Seismic Dampers (HPSDs), which are expected to withstand Level 2 earthquakes three times without being replaced, a low-cycle fatigue experiment was carried out to address fatigue life problems about steel Buckling-Restrained Braces (BRBs). The results of fatigue tests under the constant and variable amplitude loadings show that all the specimens have good fatigue performance and the toe-finished method can effectively improve the fatigue performance of BRBs with relatively small strain amplitudes. But the BRB's fatigue performance is affected by the in-plane gap width between filler members and the restraining member, which is verified by the comparative tests. Finally, fatigue curves are compared between these full-scale BRB tests and material tests presented in references.

引用

页码：956 / 964

页数：9

共 18 条

[1] Ductility capacity models for buckling-restrained braces [J].