外墙挂板的混凝土框架结构抗震性能试验研究  

Experimental Study on Seismic Performance of Concrete Frame Structure with Exterior Cladding Walls

作　　者：黄远[1] 张锐[1] 朱正庚 许铭[1] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2015年第7期36-41,共6页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(51478174;51338004);湖南省自然科学基金资助项目(14JJ3054);中央高校科研业务费资助项目(2014HNDX)~~

摘　　要：为研究外墙挂板对结构抗震性能的影响,重点考察外墙挂板对结构水平刚度、承载力及变形能力的影响,进行了3榀足尺混凝土框架结构的低周往复荷载试验.3榀框架分别为纯现浇混凝土框架结构模型、外墙挂板与框架梁连接模型及外墙挂板与框架梁及框架柱均连接的模型,试验中结构的最大层间位移角达到1/16.试验结果表明:3个试件都具有稳定的滞回性能及良好的延性;外墙挂板与框架柱脱开后,对结构承载力的影响可以忽略;外墙挂板对结构的初始刚度存在显著影响,并且外墙挂板与框架梁柱均相连时远大于外墙挂板仅与框架梁相连时对结构刚度的提高效果;结构的最大层间位移角达到1/16时,外墙挂板与梁连接处仍未出现明显破坏现象,并且外墙挂板整体保持完好,说明在大震下结构发生大变形时外墙挂板与主体结构的连接能够满足要求.In order to study the influence of exterior cladding walls on the seismic performance of frame structure, especially the impact on siding horizontal stiffness of structures, strength and deformation capac- ity, three full-scale reinforced concrete frame structures ineluding pure east, siding with the beam and sid ing with both the beam and the column were tested under cyclic loading to a maximum inter storey drifter angle of 1/16 rad. The experiment results indicate that three specimens exhibit steady hysteretic behavior and excdlent ductility. After the connection with the column was disengaged, the impact on the strength of the structure can be ignored. The cladding walls have a significant impact on the initial stiffness of the structure, and the siding with the frame and beam increases the stiffness more obviously than the effect when the siding is only connected to the beam. The connections between the cladding panels and the beam have no noticeable damage, and the panel remains intact when the inter storey displace angle reaches 1/16, indicating that the connections between the structure and the exterior cladding walls can meet the design requirements of major earthquakes.

关 键 词：外墙挂板 框架结构 拟静力试验 刚度 抗震性能 

分 类 号：TU375.4[建筑科学—结构工程] TU317.1