新型混凝土横孔空心砌块砌体局部受压性能研究  

Study on local compression property of new horizontal-hole hollow block masonry

作　　者：陈伟 曾鹏 张明亮 吴方伯[3] 周绪红[4] 张卓 CHEN Wei;ZENG Peng;ZHANG Mingliang;WU Fangbo;ZHOU Xuhong4;ZHANG Zhuo(School of civil engineering,Changsha University of Science and Technology,Changsha 410082,China;Hunan Construction Engineering Group Co.,Ltd,Changsha 410004,China;School of Civil Engineering,Hunan University,Changsha 410153,China;School of Civil Engineering,Chongqing University,Chongqing 730000,China)

机构地区：[1]长沙理工大学土木工程学院,湖南长沙410082 [2]湖南建工集团有限公司,湖南长沙410004 [3]湖南大学土木工程学院,湖南长沙410153 [4]重庆大学土木工程学院,重庆730000

出　　处：《地震工程与工程振动》2018年第6期95-107,共13页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(51408063);湖南建工集团基础研究项目(JGJTK2018-004)~~

摘　　要：通过对15个新型横孔空心砌块砌体中部均匀局部受压试验、12个端部均匀局部受压试验以及6个角部均匀局部受压试验研究,得到了新型横孔空心砌块砌体在均匀局部荷载作用下的破坏形态、横竖向变形规律、初裂荷载、破坏荷载及局压工作机理等。根据这三种位置的局压开裂荷载与破坏荷载,分别回归出了局压开裂强度系数与局部受压强度提高系数,并通过归一化处理后提出了新型横孔空心砌块砌体局部受压承载力统一公式。运用有限元软件ANSYS,得到了砌体应力应变曲线,并将有限元分析结果与试验结果进行对比,两者吻合较好,进一步说明了该砌体的局部受压工作机理。Based on the experimental study of 15 new types of hollow concrete block masonry, the uniform local compression test, the test of the local compression at the end of the 12 ends and the uniform local compression of the 6 corners are studied,the thesis got the failure modes, horizontal and vertical deformation, cracking load, failure load, and local compressive mechanism of new horizontal-hole hollow block masonry under uniform local load. Local compressive cracking strength and the local compressive strength were respectively regressed by the cracking load and failure load of this three positions, then a new unified formula of local bearing capacity of the new horizontal-hole hollow block masonryon local compression for normalized was brought up in the thesis. Stress-strain curve of the masonry have been gotwith FEM ANSYS,And also compared with experimental results, both are in good agreement, which illustrates the working mechanism of the local compression of the masonry.

关 键 词：砌体结构 新型横孔空心砌块砌体 局部受压 试验研究 承载力 

分 类 号：TU522.39[建筑科学—建筑技术科学] TU364