第43卷第3期2023年6月文章编号:1000-1301(2023)03-0087-10地震工程与工程振动EARTHQUAKEENGINEERINGANDENGINEERINGDYNAMICSVol.43No.3Jun.2023D0I:10.13197/j.eeed.2023.0309带钢板暗支撑叠合板式剪力墙恢复力模型研究汪梦甫,李柳红(湖南大学土木工程学院,湖南长沙410082)摘要:大量的研究结果表明,在叠合板式剪力墙中引人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。关键词:叠合板式剪力墙;四折线骨架模型;恢复力模型;残余位移中图分类号:TU398.2文献标识码:AStudyonahystereticmodelofsuperimposedshearwallswithsteelplateconcealedbracingsWANGMengfu,LILiuhong(CollegeofCivilEngineering,HunanUniversity,Changsha410082,China)Abstract:Alotofresearchresultsshowedthattheintroductionofsteelplateconcealedbracingintothesuperimposedshearwallcaneffectivelyimprovetheseismicperformanceofthesuperimposedshearwall.Basedonthetestresultsoftheexistingsuperimposedshearwallwithsteelplateconcealedbracing,theload,displacementandstiffnesscorrespondingtothecrackpoint,yieldpoint,peakpointandlimitpointofthefour-lineskeletonmodelarecalculatedandanalyzed,theresidualdisplacementcalculationmodelisobtainedbystepwiseregressionanalysis,andahystereticmodelofthesuperimposedshearwallwithsteelplateconcealedbracingsisconstructed.Aftercomparingthetestresults,wecanfindthattheload,displacementandstifnessofdifferentcharacteristicpointsobtainedbytheproposedfourbrokenlineskeletonmodelareingoodagreementwiththetestresults,theproposedhystereticmodelan...