砖砌体沿阶梯形截面抗剪试验方法研究  

Study on shear test method of brick masonry along stepped cross-section

作　　者：吴体 肖承波 甘立刚 侯汝欣 陈华 WU Ti;XIAO Chengbo;GAN Ligang;HOU Ruxin;CHEN Hua(Sichuan Institute of Building Research,Chengdu 610081,China;Sichuan Huashi Group Co.,Ltd.,Chengdu 610081,China;Sichuan Construction Safety and Stability New Technology and Engineering Co.,Ltd.,Chengdu 610081,China)

机构地区：[1]四川省建筑科学研究院有限公司,四川成都610081 [2]四川华西集团有限公司,四川成都610081 [3]四川省建研全固建筑新技术工程有限公司,四川成都610081

出　　处：《四川建筑科学研究》2024年第6期50-58,共9页Sichuan Building Science

基　　金：四川华西集团科技项目(HXKX2015/020)。

摘　　要：砌体结构受剪时会出现阶梯形裂缝的破坏形态,但现行国家标准中没有砌体结构沿阶梯形截面破坏的抗剪强度试验方法。结合类似研究,开展了烧结普通砖砌体对角加载试验方法的试验研究,共制作了45个标准抗剪件、15片大尺寸对角加载件和15片小尺寸对角加载件。通过对标准抗剪件试验结果的数据统计特征进行分析,并对沿阶梯形截面破坏的强度试验结果与规范中沿通缝截面破坏强度公式计算值进行对比,提出了普通砖砌体沿阶梯形截面抗剪试验方法建议尺寸。The failure mode of masonry structures under shear is characterized by the formation of stepped cracks.However,the current national standards do not include a shear strength test method for the failure of masonry structures along stepped cross-sections.Experimental research was conducted on the diagonal loading test method for sintered common brick masonry,based on similar studies and reference literature.A total of 45 standard shear specimens,15 large-scale diagonal loading specimens,and 15 small-scale diagonal loading specimens were prepared.By analyzing the statistical characteristics of the test results of the standard shear specimens and comparing the strength test results along stepped cross-sections with the calculated values of the strength formula for failure along through-seam sections in the code,recommended dimensions for the shear strength test along stepped cross-sections of common brick masonry were proposed.

关 键 词：对角加载 阶梯形截面 通缝截面 抗剪强度 

分 类 号：TU362[建筑科学—结构工程]