方钢管再生混凝土框架-再生空心砌块填充墙抗震性能试验研究  

Experimental study on seismic behavior of recycled aggregate concrete filled square steel tubular frame infilled with recycled hollow block wall

作　　者：余亚琳 孟二从 苏益声[3] YU Yalin;MENG Ercong;SU Yisheng(School of Business,Chongqing College of Humanities,Science&Technology,Chongqing 401524,China;College of Engineering and Technology,Southwest University,Chongqing 400715,China;School of Civil and Architectural Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]重庆人文科技学院工商学院,重庆401524 [2]西南大学工程技术学院,重庆400715 [3]广西大学土木建筑工程学院,广西南宁530004

出　　处：《世界地震工程》2023年第3期88-96,共9页World Earthquake Engineering

基　　金：重庆人文科技学院2022年度校级科研项目(CRKZK2022001);重庆人文科技学院2021年度校级研究项目(21CRKXJJG02);中央高校基本科研业务费专项资金资助项目(XDJK2020B021);西南大学实验技术研究项目(SYJ2022020)。

摘　　要：为研究方钢管再生混凝土框架-再生空心砌块填充墙的抗震性能,以有无填充墙为变化参数,进行了2榀框架试件的低周反复加载试验。结果表明:方钢管再生混凝土框架破坏过程为RAC梁破坏→柱脚鼓曲,增设填充墙后,其破坏过程为填充墙破坏→RAC梁破坏→柱脚鼓曲。方钢管再生混凝土框架-再生砌块填充墙试件滞回曲线呈饱满梭形,其在受力过程中经历了弹性、弹塑性及破坏阶段。方钢管再生混凝土框架-再生砌块填充墙试件可满足结构正常使用阶段的变形要求,并具有良好的抗倒塌能力。相较于无填充墙试件,有填充墙试件在正、负向的承载能力分别提升了9.0%与-7.8%,在正、负向的延性系数分别提升了15.6%与35.7%。墙体存在可将框架初始刚度提升1.06倍,但对其残余刚度影响不大。墙体破坏前,其存在可提升框架耗能性能;墙体破坏后,其存在反而会抑制框架耗能性能。To study the seismic behavior of recycled aggregate concrete(RAC)filled square steel tubular frame infilled with recycled hollow block wall,two frame specimens were tested under low cyclic loading with the parameter of infilling recycled block wall or not.The results show that the failure process of RAC filled square steel tubular frame is RAC beam failed→column base buckled.When the frame infilled with the filler wall,the failure process presents to filler wall failed→RAC beam failed→column base buckled.The measured hysteretic curves of specimens show a full shuttle shape.The frame specimens experienced elastic,elastoplastic,and failure stages during the loading process.The specimen of RAC filled square steel tubular frame infilled with recycled hollow block wall can satisfy the structural deformation requirement in normal use stage,and it shows good collapse resistance.Compared with the mechanical index of the specimen without filler wall,the bearing capacities of the specimen with infilled wall in the positive and negative directions increased by 9.0%and-7.8%respectively,and the ductility coefficients in the positive and negative directions increased by 15.6%and 35.7%respectively.The existence of the filler wall can increase the initial stiffness of RAC filled square steel tubular frame by 1.06 times,but has little effect on its residual stiffness.Before the filler wall is destroyed,the existence of the wall can improve the energy dissipation ability of RAC filled square steel tubular frame.However,after the wall is destroyed,the existence of the wall will inhibit the energy dissipation ability of the frame.

关 键 词：方钢管再生混凝土框架 再生空心砌块填充墙 抗震性能 试验研究 

分 类 号：TU398[建筑科学—结构工程] TU528