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1、不同再生骨料掺量的中高剪力墙振动台试验研究第27卷,第2期??????????????????2011年6月世??界??地??震??工??程WORLDEARTHQUAKEENGINEERINGVo.l27No.2Jun.2011文章编号:1007-6069(2011)02-0057-06张建伟,丹??姗,曹万林,池彦忠1,211,21(1.北京工业大学建筑工程学院,北京100124;2.城市与工程安全减灾省部共建教育部重点实验室,北京100124)摘??要:为了研究再生混凝土剪力墙的动力性能,进行了3个1/3缩尺的不同
2、再生骨料取代率的中高剪力墙模型的模拟地震振动台试验,其中1个为普通混凝土剪力墙、1个为再生粗骨料混凝土剪力墙、1个为全再生骨料混凝土剪力墙。试验过程经历了剪力墙弹性、开裂和破坏阶段,实测并比较分析了各剪力墙在不同阶段的动力特性、动力反应及破坏形态。试验结果表明:再生粗骨料混凝土中高剪力墙具有和普通混凝土剪力墙相近的抗震性能,其墙体开裂时台面加速度输入降低9.7%,其弹塑性位移角达到1/120时台面加速度输入降低5.8%,经合理设计,可用于建筑结构。关键词:再生混凝土;中高剪力墙;抗震性能;振动台试验中图分类号:TU37
3、5;P315??92??????????文献标志码:A———————————————————————————————————————————————Earthquakesimulationtestonmid??riserecycledconcreteshearwallswithdifferentpercentageofaggregatereplacementZHANGJianwei,DANShan,CAOWanlin,CHIYanzhong1,211,21(1.CollegeofArchitectureandCivil
4、Engineering,BeijingUniversityofTechnology,Beijing100124,China;2.KeyLabofUrbanSecurityandDisasterEngineering,MOE,Beijing100124,China)———————————————————————————————————————————————Abstract:Toachievetheseismicperformanceofrecycledconcreteshearwalls,three1/3scaledm
5、odelswithdif??ferentpercentageofaggregatereplacemen,tincludingonenaturalconcreteshearwal,lonerecycledconcreteshearwallwith100%recycledcoarseaggregateandonerecycledconcreteshearwallwith100%recycledcoarseandfineaggregate,weretestedontheshakingtable.Thetestingproce
6、ssincludedelastic,cracking,andfailurestagesofthemodelstructures.Dynamiccharacteristicanddynamicresponseofthestructuresatdifferentstageswerestudiedandalsomadethecomparisonbetweenfailurepatternsof3models.Bycomparingthetestresultsshowthattheseis??micperformanceofth
7、erecycledcoarseaggregateconcreteshearwallisclosetotheseismicperformanceofthenatu??ralconcreteshearwal.lAtthefirstcrackappearingontherecycledconcreteshearwal,lthepeakoftheaccelera??tionappliedtoexciteitisdecreasedby9.7%comparedwiththatappliedtoexcitethenaturalshe
8、arwal.lAtthefailurestageofspecimenwith1/120roofdriftangle,thepeakoftheaccelerationappliedtoexciteitisdecreasedby5.8%.Itcanbeusedtobuildingstructureengineeringthroughr
