保温砌模格构式混凝土墙体抗震性能试验  

Experimental Research on Seismic Behavior of Concrete Lattice Walls

作　　者：周静海[1] 朱静雯[2] 孟宪宏[2] 王鹏里[2] 

机构地区：[1]沈阳建筑大学节能研究院,辽宁沈阳110168 [2]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2010年第6期1095-1100,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家科技支撑计划子课题项目(2008BAK51B06-07)

摘　　要：目的研究不同轴压比对保温砌模格构式混凝土墙体抗震性能的影响.方法将模块对孔错缝搭接形成墙体模板,在竖向和横向芯孔分别布置钢筋,然后在孔内浇筑混凝土,形成保温砌模格构式混凝土墙体,然后进行低周反复水平荷载试验.结果墙底梁柱中部交叉核心区先出现环状裂缝和"X"型裂缝,破坏时大部分交叉核心区均出现"X"型裂缝并被压碎,墙体根部和顶部混凝土出现斜向裂缝,逐渐贯通;墙体延性系数在1～2,极限位移角较小,墙体刚度大.结论提高轴压比可以提高墙体的延性,但是对于耗能能力的影响不大.保温砌模格构式混凝土墙体具有良好的抗震性能.The purpose of this paper is to study different axial pressure ratio＇s effect on the seismic behavior of concrete lattice walls.Experiment has been carried out on concrete lattice walls under vertical load and cyclic lateral load.The results show that circumferential cracks and X-type cracks appear on the overlapping core area in the middle part of the beam-column at the root of the wall.During the damage,there are X-type cracks crushed on most overlapping core areas.Meanwhile,diagonal cracks appear and connect gradually at the top and root of the wall.The wall＇s ductility coefficient is 1 ～ 2 indicating the small ultimate displacement angle and high stiffness.Increase of the axial pressure ratio can improve the ductility of wall,while it has little influ-ence on the energy dissipation capacity of the wall.In a word,the concrete lattice wall with insulated brick has excellent seismic behavior.

关 键 词：轴压比 格构式混凝土墙体 试验研究 延性 

分 类 号：TU375[建筑科学—结构工程]