摘要
大量的研究结果表明,在叠合板式剪力墙中引入钢板暗支撑能够有效提高叠合板式剪力墙的抗震性能。为了指导该种带钢板暗支撑叠合板式剪力墙的抗震设计,利用已有的带钢板暗支撑叠合板式剪力墙的试验数据,基于四折线骨架模型,对开裂点、屈服点、峰值点、极限点的荷载、位移及刚度进行计算分析,同时采用逐步回归分析得到了残余位移计算模型,进而构建了带钢板暗支撑叠合板式剪力墙的恢复力模型。通过与试验结果的对比发现:建立的四折线骨架模型获得的各受力阶段的荷载、位移及刚度与试验结果吻合良好,提出的逐步回归分析得到的残余位移模型可以较好地预测带钢板暗支撑叠合板式剪力墙各加载循环的残余位移,因此,文中提出的恢复力模型与残余位移模型能够较为真实地反映带钢板暗支撑叠合剪力墙的滞回特性,可为其抗震设计提供理论依据。
A lot of research results showed that the introduction of steel plate concealed bracing into the superimposed shear wall can effectively improve the seismic performance of the superimposed shear wall.Based on the test results of the existing superimposed shear wall with steel plate concealed bracing,the load,displacement and stiffness corresponding to the crack point,yield point,peak point and limit point of the four-line skeleton model are calculated and analyzed,the residual displacement calculation model is obtained by stepwise regression analysis,and a hysteretic model of the superimposed shear wall with steel plate concealed bracings is constructed.After comparing the test results,we can find that the load,displacement and stiffness of different characteristic points obtained by the proposed four broken line skeleton model are in good agreement with the test results,the proposed hysteretic model and residual displacement model can realistically reflect the hysteretic characteristics of the superimposed shear wall with steel plate concealed bracing,and it can provide a theoretical basis for seismic design of the superimposed shear wall with steel plate concealed bracing.
作者
汪梦甫
李柳红
WANG Mengfu;LI Liuhong(College of Civil Engineering,Hunan University,Changsha 410082,China)
出处
《地震工程与工程振动》
CSCD
北大核心
2023年第3期87-96,共10页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(52078203,51578225)。
关键词
叠合板式剪力墙
四折线骨架模型
恢复力模型
残余位移
superimposed shear wall
four broken line skeleton model
hysteretic model
residual displacement
