摘要
以约束拉杆间距、初始偏心率和荷载角作为研究参数,进行了16个带约束拉杆和11个不设约束拉杆T形钢管混凝土柱的偏心受压试验。分析各参数对试件的破坏形态、受力特点、承载力及延性等力学性能的影响。试验表明:拉杆的设置可以提高偏压试件的极限承载力和延性。
Tests on TCFT-WB, including 16 specimens with binding bars and 11 ones without binding bars under eccentric compression were carried out. The main parameters in tests are binding bar spacing, load ec- centricity ratio and load angle. The effects of parameters on the behavior of specimens such as failure mode, bearing capacity and ductility are analyzed. Tests indicate bearing capacity and ductility may be enhanced by setting up binding bars.
出处
《结构工程师》
2011年第B01期140-145,共6页
Structural Engineers
基金
国家自然科学基金资助项目(50878087)
关键词
T形钢管混凝土
约束拉杆
承载力
延性
弯矩
曲率
应变
t-shaped concrete-filled steel tube, binding bar, bearing capacity, ductility, moment, curvity, strain
