配筋率对混凝土柱侧向抗撞击性能影响的试验研究  

EXPERIMENTAL STUDY ON THE EFFECT OF REINFORCEMENT RATIO OF THE CAPABILITIES OF RC COLUMN TO RESIST LATERAL IMPACT LOADING

作　　者：冯宇[1] 王兴国[1] 张玉敏[1] 苏幼坡[1] 

机构地区：[1]河北理工大学河北省地震工程研究中心,河北唐山063009

出　　处：《工业建筑》2011年第11期85-88,共4页Industrial Construction

基　　金：国家自然科学基金项目(50778061);河北省自然科学基金项目(E2008000392)

摘　　要：通过对钢筋混凝土框架柱在侧向撞击荷载作用下动力响应的试验研究,考察侧向撞击荷载加载速率、纵筋配筋率及箍筋配筋率对钢筋混凝土框架柱破坏形态和侧向承载力等性能的影响。试验结果表明,提高纵筋配筋率可以提高框架柱侧向承载力,加载速率大,提高幅度也大。箍筋间距是框架柱破坏模式的主要影响因素。当箍筋间距较大时,易发生剪切破坏,反之易发生弯曲破坏。It is examined the influence of lateral impact loading rate,longitudinal reinforcement ratio and stirrup ratio on the failure mode,lateral bearing capacity of RC columns by experimental research on the dynamic response of RC columns under lateral impact loading.The test results show that increasing in longitudinal reinforcement ratio can enhance ultimate load bearing of the columns.The greater the loading rate,the greater the increased amplitude.It is also demonstrated that the main factor influencing the failure mode of RC columns is stirrup spacing.The column is prone to shear failure when the stirrup spacing is large otherwise to flexural failure.

关 键 词：钢筋混凝土柱 侧向撞击 配筋率 试验研究 

分 类 号：TU375.3[建筑科学—结构工程]