内填砌体的密肋复合墙体极限承载力计算  

Calculation on ultimate bearing capacity of multi-ribbed composite walls infilled with blocks

作　　者：黄炜[1] 姚谦峰[2] 章宇明[2] 吴永根[2] 

机构地区：[1]西安交通大学,陕西西安710049 [2]西安建筑科技大学,陕西西安710055

出　　处：《土木工程学报》2006年第3期68-75,共8页China Civil Engineering Journal

基　　金：国家自然科学基金(50078045);国家"十五"科技攻关课题(2002BA806B05)

摘　　要：结合课题组前期的研究成果,就一种新型结构的主要受力构件——密肋复合墙体的极限承载力进行研究。建立了偏心受压和偏心受拉复合墙体斜截面受剪承载力计算公式,并就影响墙体斜截面受剪承载力的因素进行了讨论;建立了墙体正截面压弯、拉弯承载力实用计算公式,并给出了墙体最终发生弯、剪破坏模式的判定。理论研究与试验分析表明:依据极限平衡理论,采用理论与经验相结合建立起来的复合墙体斜截面受剪承载力计算公式和以应变平截面假定为基础,理论推导所得的复合墙体正截面承载力计算公式,具有一定的理论依据和实用价值,满足实际工程计算需要。Multi-ribbed composite wall is the main bearing member of a newly proposed structural system a multiribbed panel structure. A study was performed on the ultimate bearing capacity of the multi-ribbed composite wall. From this study, equations for computing the shear resistance of the wall under eccentric compression and stretch was proposed and a discussion was given on the main factors that influence the oblique section shear capacity of the wall. Moreover, practical formulas for determination of the normal sections under both compressive and stretchbending actions, also the mathematical relations for axial bearing capacity of the wall are established. In addition, a clear definition is given on the bending failure mode and the shear failure of the wall panels. According to the balance theory and from the fact that the theoretical analysis was supported by test results, we may conclude that the proposed formulas for both the oblique section shear capacity and normal section bending capacity are quite reasonable, thus useful for design applications.

关 键 词：密肋壁板结构 密肋复合墙体 受剪承载力 正截面承载力 

分 类 号：TU375[建筑科学—结构工程]