不同砌筑材料对钢筋混凝土框架的抗震性能影响  

Influence of different masonry materials on seismic performance of RC frame

作　　者：董孝曜 郭迅[3] 罗若帆 阿拉塔 DONG Xiaoyao;GUO Xun;LUO Ruofan;A Lata(Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Mechanical Engineering,China Earthquake Administration,Harbin 150080,China;Key Laboratory of Earthquake Disaster Mitigation,Ministry of Emergency Management,Harbin 150080,China;Key Laboratory of Building Collapse Mechanism and Disaster Prevention,China Earthquake Administration,Institute of Disaster Prevention,Sanhe 065201,China;Jiaying University,Meizhou 514015,China;Yunnan Earthquake Agency,Kunming 650041,China)

机构地区：[1]中国地震局工程力学研究所中国地震局地震工程与工程振动重点实验室,哈尔滨150080 [2]地震灾害防治应急管理部重点实验室,哈尔滨150080 [3]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 [4]嘉应学院,广东梅州514015 [5]云南省地震局,昆明650041

出　　处：《桂林理工大学学报》2023年第1期83-90,共8页Journal of Guilin University of Technology

基　　金：中国地震局建筑物破坏机理与防御重点实验室开放基金项目(FZ211201);国家自然科学基金面上项目(52278489);国家重点研发计划项目(2018YFC1504302-3)。

摘　　要：为研究不同砌筑材料对钢筋混凝土框架(RC框架)抗震性能的影响,采用有限元分别建立纯框架、加气混凝土砌块和秸秆草砖3种不同类型的填充墙框架有限元模型,考察不同材料、不同砌筑高度对RC框架抗震性能的影响。数值模拟结果表明,不同砌筑高度的加气混凝土砌块对RC框架受力性能影响较大,由于填充墙的存在,柱变为短柱,最大承载力下降约为42%,而秸秆草砖填充墙框架耗能变化率只有3.43%,与纯框架的受力、变形基本相同。与加气混凝土砌块相比,采用秸秆草砖作为砌块,其对RC框架的受力影响较小,秸秆草砖作为填充墙原料优于加气混凝土砌块,建议工程采用秸秆草砖作为砌筑材料。It is found in the field after earthquake that different masonry materials have different effects on the structural stress.In the study of different masonry materials on seismic performance of reinforced concrete frame(RC frame),the finite element models of pure frame,aerated concrete block and straw-brick filled wall frame are established by ABAQUS.The influence of different materials and masonry height on the seismic performance of RC frame is investigated.The numerical simulation results show that aerated concrete blocks with different masonry heights have a great influence on the mechanical properties of RC frames.Due to the existence of infilled walls,columns become shorter,and the maximum bearing capacity decreases to about 42%.The energy consumption change rate of straw brick infilled walls is only 3.43%,basically the same as that of pure frames.Compared with aerated concrete block,straw brick,as a block,it has less influence on the stress of RC frame.Straw brick as the raw material of filling wall,is better than that of aerated concrete block.It is suggested that straw brick could be used as masonry material in engineering.

关 键 词：填充墙RC框架结构 秸秆草砖 有限元 抗震 砌筑高度 

分 类 号：TU375[建筑科学—结构工程]