竖向分布钢筋单排连接的预制剪力墙抗震性能试验  

Tests on seismic behavior of pre-cast shear walls with vertical distributed reinforcements spliced by a single row connecting rebars

作　　者：张微敬[1] 钱稼茹[2] 陈康[1] 秦珩 刘国权 李建树 

机构地区：[1]北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京100124 [2]清华大学土木工程安全与耐久教育部重点实验室,北京100084 [3]北京万科企业有限公司,北京100125

出　　处：《建筑结构》2011年第2期12-16,共5页Building Structure

基　　金：北京市科技计划课题(批准号:Z10110602231003)

摘　　要：通过3个试件的拟静力试验,研究竖向分布钢筋与连接钢筋间接搭接、连接钢筋单排布置且数量少于竖向分布钢筋的预制剪力墙的抗震性能。试验结果表明,预制墙以水平裂缝及水平缝延伸的斜裂缝为主,墙底与地梁之间产生了较宽的水平通缝,破坏形态为压弯破坏;可采用规范公式计算预制剪力墙的受压承载力;试件的极限位移角达到1/60。竖向钢筋与连接钢筋间接搭接是可行的,能有效传递钢筋应力。To study seismic behavior of the pre-cast reinforced concrete shear wall which the vertical distributed reinforcements indirect spliced with the connecting reinforcements,quasi-static tests of three specimens were performed.The connecting reinforcements were arranged in a single row and its number was less than the number of the vertical reinforcement of the wall.The test results indicate that horizontal cracks and extended diagonal cracks are the main cracks of the wall.Wide horizontal crack runs through the interface between wall and base beam.All specimens fail in compression-bending mode.The ultimate drift ratio of all specimens is 1 /60.The current code formulas are suitable for calculating the compressive strength of pre-cast shear walls.The stresses of the vertical reinforcements of pre-cast shear walls can be transferred effectively by indirect splicing of reinforcements.

关 键 词：预制剪力墙 竖向分布钢筋 连接钢筋 间接搭接 拟静力试验 

分 类 号：TU375[建筑科学—结构工程]