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1、第34卷第4期公路交通科技Vol.34No.42017年4月JournalofHighwayandTransportationResearchandDevelopmentApr.2017doi:10.3969/j.issn.1002-0268.2017.04.011装配式桥墩抗震性能的提升方法研究进展1,2张于晔(1.东南大学混凝土及预应力混凝土结构教育部重点实验室,江苏南京210096;2.南京理工大学理学院,江苏南京210094)摘要:针对提高装配式桥墩抗震性能的不同方法,从结构刚度、抗剪能力、自复位能力、延性耗能和施工便易性等方面对比分析了其优缺点、适用性及研究思路
2、等。首先,基于装配式桥墩抗震设计的难点和抗震性能的主要缺陷,提出该问题的研究背景;其次,分别从改进结构形式与材料、节段连接方式以及设置耗能装置等角度,归纳对比了国内外提升装配式桥墩抗震性能的主要措施;然后,剖析了这些措施的相关研究思路与研究方法。在此基础上,提出有待进一步研究的主要问题,即完善适合于装配式桥墩的理论分析方法,开展装配式双柱墩的抗震性能研究,提高装配式桥墩建造的便利性与经济性,并从桥梁体系的角度来分析其抗震性能。关键词:桥梁工程;桥墩;对比分析;预制装配;抗震性能;提升方法中图分类号:U443.22文献标识码:A文章编号:1002-0268(2017)04-
3、0072-08ResearchProgressofMethodsforImprovingSeismicPerformanceofPrefabricatedBridgePiers1,2ZHANGYu-ye(1.KeyLaboratoryofConcreteandPre-stressedConcreteStructureofMinistryofEducation,SoutheastUniversity,NanjingJiangsu210096,China;2.SchoolofScience,NanjingUniversityofScienceandTechnology,Nan
4、jingJiangsu210094,China)Abstract:Inviewofthemethodsforimprovingtheseismicperformanceofprefabricatedbridgepiers,theadvantagesanddisadvantages,applicabilityandresearchmethodologiesarecomparedandanalyzedfromtheaspectsofstructuralstiffness,shearcapacity,self-resettingability,ductileenergydiss
5、ipationandconstructionconvenience.First,theresearchbackgroundoftheproblemisputforwardbasedonthedifficultiesinseismicdesignandthemaindrawbacksoftheseismicbehaviorofprefabricatedpiers.Second,themainmeasurestoenhancetheseismicperformanceofprefabricatedpiersaresummarizedandcomparedfromtheaspe
6、ctsofimprovingstructuretypesandmaterials,segmentconnectionmodesandsettingenergydissipationdevices.Then,therelevantresearchideasandmethodologiesofthesemeasuresareanalyzed.Basedonthis,themainissuesneedtobefurtherstudiedareputforward,thatistoimprovethetheoreticalanalysismethodforprefabricate
7、dpiers,tocarryouttheresearchontheseismicbehaviorofprefabricateddouble-columnpiers,toimprovetheconvenienceandeconomyofprefabricatedpiers,andtoanalyzetheirseismicperformancefromtheperspectiveofbridgesystem.Keywords:bridgeengineering;bridgepier;comparativeanalysis;pref