钢筋混凝土高剪力墙拟静力试验  

Research of Quasi-Static Test and Hysteretic Curve Model for Reinforced Concrete High Shear Walls

作　　者：李兵[1] 李宏男[2] 曹敬党[3] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116023 [3]沈阳建筑大学建设项目管理公司,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2009年第2期230-234,共5页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家杰出青年基金项目(50025823)

摘　　要：目的研究钢筋混凝土高剪力墙在低周期反复荷载作用下受力性能.方法将剪力墙的横截面和配筋保持不变,只改变剪力墙的轴向荷载(轴压比),对3片钢筋混凝土高剪力墙采用低周反复加载方式进行了试验,比较不同轴压比的剪力墙的破坏形态、破坏程度,以及对试验现象进行分析.结果3个试件剪跨比较大,在裂缝产生时滞回曲线有一个拐点,有明显的屈服荷载和明显的下降段,滞回曲线丰满,循环次数多,延性好,耗能能力强,刚度和承载力缓慢下降.结论在对钢筋混凝土高剪力墙恢复力曲线模型进行选取时,建议采用平顶刚度退化二线型模型或平顶刚度退化三线型模型.Quasi-static test of three reinforced concrete shear walls is carded out under cyclic lateral loading. The relationship between force and displacement is obtained. By comparing the destructed behaviors and grades of the walls under different axial compression ratio and shear span ratio based on the analysis of test and hysteretic curve,it can be concluded that with the increasing of axial compression ratio to some range, the bearing capacity of shear wall will increase if the shear span ratio of shear walls are the same, but the ductility of walls will descend, and degradation of strength and stiffness are also more serious. Three-linear model of even stiffness degradation is suggested for RC high shear walls.

关 键 词：钢筋混凝土高剪力墙 滞回曲线 抗震性能 拟静力试验 

分 类 号：TU375.3[建筑科学—结构工程]