焊接环式箍筋高强砼大偏心受压柱试验研究  

Ring Type Stirrups Welded High-strength Concrete Columns Experimental Study of Large Eccentric

作　　者：孟繁录[1] 李升才[1] 万振华[1] 

机构地区：[1]华侨大学土木工程学院,泉州362021

出　　处：《武汉理工大学学报》2009年第23期48-51,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50948036);福建省自然科学基金(E0810022);福建省科技计划重点项目(2008H0029);厦门市科技计划项目(3502Z20073035)

摘　　要：通过3根焊接环式箍筋高强混凝土的大偏心受压柱,来进行试验研究,箍筋采用HRB400高强箍筋,对其受力性能进行了研究。通过试验研究得出承载力可以充分提高的结论。此外,在理论上分析了承载力提高的原因,剖析了延性的变化。使得高强混凝土在三向受压的受力状态下,形成约束混凝土,从而使大偏心受压柱承载力得到有效的提高。This experiment is researched through three welding ring type stirrups high-strength concrete columns of large eccentric. High-strength stirrups are used by HRB400 steel. Its mechanical properties are researched; the bearing capacity of the great eccentric compression can be greatly improved through the experimental researches. And the bearing capacity analysis of the root causes is improved in theory, however, the changes of the column has been analyzed in ductility. High-strength concrete is in the compression of three-edge state, it makes the concrete confined concrete, and so the problem that the bearing capacity of large eccentric columns is difficult to effectively improve can be solved.

关 键 词：高强焊接环式箍筋 大偏心受压柱 承载力 延性 

分 类 号：TU317[建筑科学—结构工程] TU398