Experimental Study on the Seismic Behavior of Tie Bar Stiffened Round-Ended Concrete-Filled Steel Tube Columns

被引：17

作者：

Ding, Faxing ^{[1
]}

Pan, Zhicheng ^{[1
]}

Lai, Zhichao ^{[2
]}

Yu, Zhiwu ^{[1
]}

机构：

[1] Cent South Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China

[2] Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Fujian, Peoples R China

来源：

JOURNAL OF BRIDGE ENGINEERING | 2020年 / 25卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Concrete-filled steel tube (CFST); Round-ended; Tie bar stiffened; TR-CFST; Seismic behavior; Experimental tests; MECHANICAL PERFORMANCES; SHEAR-STRENGTH; DESIGN;

D O I：

10.1061/(ASCE)BE.1943-5592.0001611

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper experimentally investigates the seismic behavior of tie bar stiffened round-ended concrete-filled steel tube columns. A total of 16 specimens were tested. The test parameters included the axial load ratio, bending axis, tie bar ratio, length of the stiffened region, column length-to-depth ratio, and cross-sectional shape. The seismic performance of the specimens was then evaluated using four indexes, i.e., flexural strength, ductility, stiffness, and energy dissipation capacity. The test results along with the evaluation confirmed the importance of using the stiffening tie bars to improve the seismic performance of round-ended concrete-filled steel tube members.

引用

页数：14

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