全框支厚板转换结构振动台试验研究  

Shaking table test study on the full frame supported thick plate transfer structure

作　　者：张语 刘维亚 李恒 ZHANG Yu;LIU Weiya;LI Heng(School of Civil Engineering,Guangzhou University,Guangzhou 510700,China;Shenzhen Qiandian Architecture and Engineering Design Consulting Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]广州大学土木工程学院,广州510700 [2]深圳千典建筑与工程设计顾问有限公司,深圳518000

出　　处：《建筑结构》2024年第23期35-42,共8页Building Structure

摘　　要：为研究全框支厚板转换结构在不同地震烈度下的地震响应,按照1∶15的缩尺比制作试验模型进行振动台试验,对试验现象、动力特性和相关地震参数以及结构的应变响应进行了分析对比,确定结构的屈服机制和薄弱部位。结果表明:试验模型总体能较好地模拟结构体系的动力特性,7度小震作用下试验模型未出现裂缝,结构处于弹性阶段;7度中震双向作用下,结构自振频率相比7度中震单向地震作用平均下降25.560%,上部结构微粒混凝土表面开始出现裂缝,下部框支层未发生破坏;大震作用下,上部结构裂缝明显增多,3层剪力墙底部为薄弱部位;试验完成后,试验模型的上部剪力墙结构先于下部框支层屈服进入塑性阶段,下部结构保持完好,全框支层具有较好的抗震性能,并满足标准抗震设防目标。In order to study the seismic response of the full frame supported thick plate transfer structure under different seismic intensities,a test model was made in a 1∶15 scale ratio for shaking table test.The test phenomena,dynamic characteristics,relevant seismic parameters,and strain response of the structure were analyzed and compared to determine the yield mechanism and weak areas of the structure.The results show that the test model can generally simulate the dynamic characteristics of the structural system well.Under the action of 7 degree small earthquake,the test model does not show cracks,and the structure is in the elastic stage.Under the bidirectional action of 7 degree moderate earthquake,the natural frequency of the structure decreased by an average of 25.560%compared to the unidirectional action of 7 degree moderate earthquake.Cracks began to appear on the surface of the upper structure’s particulate concrete,and the lower frame support layer did not suffer damage.Under the action of a major earthquake,cracks in the upper structure significantly increase,and the bottom of the 3-story shear wall is the weak part.After the test is completed,the upper shear wall structure of the test model enters the plastic stage before the lower frame support layer yields,and the lower structure remains intact.The full frame supported layer has good seismic performance and meets the standard seismic fortification target.

关 键 词：全框支厚板转换结构 斜交抗侧力构件 动力响应 抗震性能 

分 类 号：TU352[建筑科学—结构工程] TU973[天文地球—地震学] P315.9[天文地球—固体地球物理学]