现浇泡沫混凝土填充墙RC框架抗震性能试验研究  

Experimental study on seismic performance of RC frames infilled with cast-in-place foam concrete

作　　者：吕文龙 许勇[2] 李柏强 Wen-long;Xu Yong;Li Bai-qiang(Cuangdong Provincial Academy of Building Research Group Company Limited,Guangzhou 510500,China;School of Civil Engineering,Guangzhou University,Guangzhou 510005,China;Nanxiong Housing and Urban-Rural Development Bureau,Shaoguan 521400,China)

机构地区：[1]广东省建筑科学研究院集团股份有限公司,广东广州510500 [2]广州大学土木工程学院,广东广州510005 [3]南雄市住房和城乡建设局,广东韶关512400

出　　处：《工程抗震与加固改造》2023年第2期36-42,共7页Earthquake Resistant Engineering and Retrofitting

基　　金：住房和城乡建设部科技计划资助项目(No.2017-K10-006)。

摘　　要：对5榀RC框架试件(1榀普通砖墙RC框架、4榀现浇泡沫混凝土填充墙RC框架)进行拟静力试验,研究了它们的抗震性能,以及泡沫混凝土填充墙采用柔性连接与采用刚性连接、墙体是否内置钢丝网对结构抗震性能的影响。结果表明:(1)新型墙体与普通砖墙在弹塑性层间位移角限值范围内都不会发生倒塌;(2)普通砖墙的承载力最高,新型墙体试件中,采用刚性连接加内置钢丝网的构造方式对结构承载力影响较大,其他泡沫混凝土墙体试件对结构的承载力影响程度相近;(3)新型墙体试件采用柔性连接加内置钢丝网的构造措施其延性系数与普通砖墙试件的延性系数基本相等;(4)新型墙体比普通砖墙对原结构的刚度影响较小,刚度退化缓慢。The pseudo-static tests on one truss of RC frame for ordinary brick wall and four trusses of RC frame for cast-in-place foamed concrete filled wall are carried out.Their seismic performance is studied,and the effects of flexible connection and rigid connection on the performance of foamed concrete wall,and whether the wall is equipped with steel wire mesh are studied.The results show that:(1)The new wall and the common brick wall will not collapse within the limit range of the displacement angle between the elasto-plastic layers;(2)Ordinary brick wall has the highest bearing capacity.Among new wall specimens,rigid connection and built-in steel wire mesh have a greater influence on the bearing capacity,while other foamed concrete walls have a similar influence on the bearing capacity;(3)The ductility coefficient of the new wall is basically equal to that of the common brick wall by adopting the structural measures of flexible connection and built-in steel wire mesh;(4)Compared with the common brick wall,the new type wall has less influence on the stiffness of the original structure,and the stiffness degrades slowly.

关 键 词：钢筋混凝土框架 泡沫混凝土 拟静力试验 抗震性能 

分 类 号：TU375.4[建筑科学—结构工程] TU352.11