摘要
为了满足工程应用需求,提高结构韧性,提出了开洞摇摆墙-框架结构体系,通过在结构中设置摇摆墙、SMA自复位装置、可更换耗能连接等构件,改善纯框架结构的抗震性能。通过1个对比框架试件和1个开洞摇摆墙-框架试件的低周往复试验,对比分析开洞-摇摆墙结构的抗侧力、破坏特点以及耗能特性等。试验结果表明:开洞-摇摆墙结构能够更好地约束框架结构的变形,较纯框架结构,承载能力提高25.4%,耗能能力提高37.3%,有效降低纯框架结构主体梁、柱、墙等构件的损伤。进一步基于有限元软件ABAQUS建立结构精细化数值分析模型,结合试验数据验证了数值模型的正确性。
To meet the practical application requirements and enhance structural resilience,an opening-rocking wall-RC frame structure system was proposed.By incorporating components such as the rocking wall,shape memory alloy(SMA)self-centering device,and replaceable energy dissipation connector into the structure,the seismic performance of the bare frame structure was improved.Through a comparative study involving a frame specimen and an openingrocking wall-RC frame structure subjected to low-cycle reciprocating tests,the seismic performance,failure characteristics,and energy dissipation characteristics of the new structural system were analyzed and compared.The experimental results demonstrate that the new structural system can better constrain the deformation of the frame structure.Compared with the pure frame structure,the load bearing capacity is increased by 25.4%and the energy dissipation capacity is increased by 37.3%.And effectively reduce damage to the main components such as beams,columns,and walls.Furthermore,a refined numerical analysis model of the structure was developed using the finite element software ABAQUS,and the accuracy of the numerical model was verified by comparing it with the experimental data.
作者
张富文
张偲严
李向民
ZHANG Fuwen;ZHANG Caiyan;LI Xiangmin(Shanghai Key Laboratory of Engineering Structure Safety,Shanghai Research Institute of Building Sciences Co.,Ltd,Shanghai 200032,China;College of Civil Engineering,Tongji University,Shanghai 200092,China)
出处
《建筑结构学报》
CSCD
北大核心
2024年第S2期117-126,共10页
Journal of Building Structures
基金
上海市自然科学基金项目(20ZR1424500)
上海市优秀技术带头人计划(21XD1432800)
上海市科技创新行动计划”启明星项目-扬帆专项(22YF1438800)
关键词
开洞摇摆墙-RC框架结构
可更换耗能连接
形状记忆合金
拟静力试验
抗震性能
opening-rocking walls-RC frame structure
replaceable energy dissipating connections
shape memory alloy
quasi-static test
seismic performance
