内置箍筋砌块砌体轴压力学性能试验  

Experimental study on masonry of reinforced block with axial load

作　　者：姜洪斌[1] 王石磊[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《哈尔滨工业大学学报》2009年第2期19-22,共4页Journal of Harbin Institute of Technology

基　　金：哈尔滨工业大学土木工程学院青年博士基金资助项目(090301)

摘　　要：为了增强砌块剪力墙结构的抗震能力,进行了7个内置箍筋的砌块砌体剪力墙约束边缘试件和1个无约束试件的轴压试验,约束箍筋设置在砌块壁内,试件的设计考虑了试件的体积配箍率、箍筋的形式和箍筋的间距影响.结果表明:砌块壁内设置了箍筋约束后,试件的承载力和变形能力都有较大程度的提高,破坏状态有了很大程度上的改善.参考箍筋约束混凝土的强度计算方法,提出了砌块砌体约束边缘试件的强度计算公式.To improve the seismic resistance of reinforced concrete masonry shear wall structure, 7 pieces of restraint flange members and 1 piece of flange member without restraint were tested under axial compression load. The confined reinforced bars were located in the block wall. The design of these pieces is based on considering the volume reinforcement ratio, the type and space of reinforcement. Results of the experiment indicate that the bearing capacity and the ultimate deformation capacity of the restraint flange member are improved greatly. The failure model is efficiently improved. Based on the calculation method of the confined concrete＇s ultimate compression strength, the calculation formula of the compressive strength of the restraint flange member is offered.

关 键 词：约束边缘试件 承载力 混凝土小型空心砌块 体积配箍率 

分 类 号：TU365[建筑科学—结构工程]