二层二跨预制装配式和现浇混凝土框架消能减震框架结构抗震性能对比  

Seismic Performance Between Cast-in-situ and Precast Two-story-double-span Energy Dissipation Frame Structure

作　　者：吴从晓[1] 黄臻[1] 邓雪松[1] 张超[1] 杨诚[1] 吴从永[1] WU Congxiao HUANG Zhen DENG Xuesong ZHANG Chao YANG Cheng WU Congyong(School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《应用基础与工程科学学报》2017年第1期149-161,共13页Journal of Basic Science and Engineering

基　　金：国家自然科学基金项目(51208128);广东省高等学校科技创新项目(2013KJCX0145);广州市珠江科技新星专项(1517000272)

摘　　要：为研究现浇和预制装配式混凝土扇形铅黏弹性阻尼减震框架抗震性能的差异性,对二层二跨预制装配式和现浇混凝土框架扇形铅黏弹性阻尼减震框架结构进行了低周反复加载试验,对比研究了两者的破坏模式、滞回耗能性能、承载能力、位移延性、强度退化、刚度退化等.结果表明:扇形铅黏弹性阻尼器在预制和现浇试验模型发挥的作用各有不同;预制构件节点位移较大,在后期阻尼器能减缓和控制节点核心区裂缝开展,保护节点;究现浇和预制装配式混凝土减震框架滞回曲线饱满,节点塑性变形能力强,刚度和强度退化曲线也较为平缓,提高节点抗震能力.The quasi-static tests of seismic performance between two kinds of frames （ i. e. two-story- double-spans cast-in-situ concrete frame and two-story-double-spans precast concrete frame ） equipped with sector lead viscoelastic dampers （SLVDs） were carried out in this study. The performance parameters including failure mode, hysteresis energy-dissipating capacity, bearing capacity,displacement ductility, strength degradation and stiffness degradation were analyzed. The results indicated that SLVDS had different roles in precast and cast-in-situ frame specimens. Joint displacement in precast frame was larger than that in cast-in-situ frame, while the SLVD can slow down the development of cracks in joint core area in the later stage plastic deformation capacity with the full hysteretic loop. The degradation curve of stiffness and carrying capacity was not reduced seriously and the seismic performance of joint has been significantly improved.

关 键 词：预制装配式混凝土框架 两层两跨框架 扇形铅黏弹性阻尼器 拟静力试验 抗震性能 

分 类 号：TU375.4[建筑科学—结构工程]