振膜(声学)
材料科学
结构工程
连接(主束)
复合材料
有限元法
栏(排版)
轮缘
作者
Ying Qin,Zhihua Chen,Jingjing Bai,Zilin Li
出处
期刊:Steel and Composite Structures
[Techno-Press]
日期:2016-01-20
卷期号:20 (1): 1-20
被引量:9
标识
DOI:10.12989/scs.2016.20.1.001
摘要
The strength and stiffness of the steel beams to concrete-filled tubular columns connections are significantly reduced if the thick-walled components are used. However, the thick-walled tubes used for columns can largely reduce the demand for space and increase the strength-to-weight ratio. This paper describes the cyclic performance of extended through-diaphragm connections between steel beams and thick-walled concrete-filled tubular columns improved with fillets around the diaphragm corners. Test on one full-scale connection was conducted to assess the seismic behavior of the connection in terms of strength, stiffness, ductility, deformation, energy dissipation, and strain distribution. It is shown that the fillets and extended through-diaphragm can alleviate the stress concentration in the connection and thus improve the seismic performance. The test results demonstrate that the through-diaphragm connections with thick-walled concrete-filled tubular columns can offer sufficient energy dissipation capacity and ductility appropriate for its potential application in seismic design.
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