Experimental study on seismic behaviors of beam with concrete-encased steel truss

被引：4
|
作者：
Zhang, Xide [1 ]
Deng, Zhiheng [1 ]
Deng, Xiaofang [1 ]
Ying, Jingwei [1 ,2 ]
Yang, Tao [1 ]
Xu, Jun [1 ]
Zhang, Chunmin [1 ]
机构：
[1] Guangxi Univ, Sch Civil Engn & Architecture, Nanning 530004, Peoples R China
[2] Guangxi Univ, Guangxi Key Lab Disaster Prevent & Engn Safety, Nanning, Peoples R China
来源：
ADVANCES IN STRUCTURAL ENGINEERING | 2018年 / 21卷 / 13期
基金：
美国国家科学基金会;
关键词：
beam; concrete; hysteretic loops; seismic behavior; steel truss; COMPOSITE BEAMS; CONNECTIONS; COLUMNS;
D O I：
10.1177/1369433218764974
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
To evaluate the ductility and energy dissipation capacity of the beam with concrete-encased steel truss, eight specimens with different types of steel truss, reinforcement ratios, and shear span ratios were tested by low-cyclic loading regime. The results indicated that beams with concrete-encased steel truss performed plumped load-displacement hysteretic loops as well as high strength and stiffness. Moreover, cross-web members improved their seismic behavior more effectively than non-cross-web members. Finally, the restoring force model of concrete-encased steel truss beam is proposed in accordance with the experimental results, which can be used to predict the load-displacement behavior of concrete-encased steel truss beam. The results could also provide a reference for the design and application of concrete-encased steel truss beam in practice.
引用
收藏
页码：2018 / 2029
页数：12
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