砌体墙力学参数的精密测量  

Precision measurement of mechanical parameters of masonry walls

作　　者：王超 郭迅[1,2] 刘娟 罗若帆 张俊 董孝曜 WANG Chao;GUO Xun;LIU Juan;LUO Ruofan;ZHANG Jun;DONG Xiaoyao(Institute of Disaster Prevention,Key Laboratory of Building Collapse Mechanism and Disaster Prevention,China Earthquake Administration,Sanhe 065201,China;Institute of Engineering Mechanics,China Earthquake Administration,Key Laboratory of Earthquake Engineering and Engineering Vibration,China Earthquake Administration,Harbin 150080,China)

机构地区：[1]防灾科技学院中国地震局建筑物破坏机理与防御重点实验室,河北三河065201 [2]中国地震局工程力学研究所地震工程与工程振动重点实验室,黑龙江哈尔滨150080

出　　处：《世界地震工程》2023年第3期97-106,共10页World Earthquake Engineering

基　　金：国家自然科学基金(52278489)。

摘　　要：为准确测量砌体墙初始刚度和抗剪强度,提出基于逐级偏压加载平衡拉应力的试验方法,设计并制作6组不同砖块类型和不同构造措施的砌体墙片模型,并在精密测试条件下进行拟静力试验。试验结果表明:基于逐级偏压加载的方法能够较好地模拟实际工程墙体剪切破坏模式。烧结普通砖砌筑的墙片抗剪强度高于蒸压粉煤灰砖砌筑的墙片。带构造柱的墙体具有更高的变形能力和延性。本文的研究结果可为准确测量砌体墙的力学参数提供一种可靠的试验方法。In order to accurately measure the initial stiffness and shear strength of masonry walls,a test method based on step-by-step eccentric loading to balance tensile stresses was proposed,specimens with different brick types and different construction measures were designed and manufactured,and pseudo-static tests were carried out under precision measurement.The test results show that the method based on step-by-step eccentric loading can better simulate the shear failure mode of actual engineering walls.The shear strength of fired common brick masonry wall is higher than that of autoclaved flyash-lime brick masonry wall.The wall with structural concrete column has higher deformation capacity and ductility.The results of this study can provide a reliable test method for accurately measuring the mechanical parameters of masonry walls.

关 键 词：砌体墙 精密测量 初始刚度 抗剪强度 拟静力试验 

分 类 号：TU365[建筑科学—结构工程]