EXPERIMENTAL RESEARCH ON SEISMIC BEHAVIOR OF CONCRETE FILLED SQUARE STEEL TUBE COLUMNS AND STEEL BEAM PLANAR FRAMES
A total of 3 pseudo-static experiments have been conducted for three planar experimental specimens. The influences of axial load ratio and beam-column linear stiffness ratio on the frame seismic behavior are investigated. The load-displacement hysteretic curves,skeleton curves and the load and displacement values for different stages are obtained. The failure characteristics,ductility,energy dissipation capacity,load bearing capacity and stiffness degrade are studied. The experimental results show that the load-displacement hysteretic curves are stable,and the deformation properties and energy dissipation capacity are good. The increase of axial load ratio decreases the frame ductility and lateral ultimate capacity,but leads to higher energy dissipation capacity. With the increase of the beam-column linear stiffness ratio,the ductility and energy dissipation capacity become low,but the lateral ultimate capacity becomes high. Test results provide a reference for the engineering application of concrete filled square steel tube columns and steel beam frames.
Concrete filled square steel tube frame Seismic behavior Experimental study Ductility Energy dissipation
Xian-Tie Wang Yousufu Ma Ji-Ping Hao Gu-Qiu Luo
College of Civil Engineering,Xian University of Architecture & Technology,Xian 710055,P.R.China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
1839-1844
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）