某砖混结构住宅加固可靠性分析
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摘要
某砖混结构房屋建于20世纪80年代,汶川地震中该房屋破坏严重,震后对破坏墙体采用植入钢筋-灌浆-外喷混凝土方法进行加固。依据破坏情况,采用5种加固方案对其进行加固设计,并用结构设计软件PKPM对其进行对比分析。结果表明:采用对1层～3层房屋部分纵墙加固的方案,可有效改善墙体抗剪性能和提高房屋的抗震能力。对施工质量及管理情况进行严格监管,经过本地区4次5级以上余震,房屋未出现任何破坏,通过实践验证了论证该加固方案具有一定可行性。
A masonry structure building built in 1980’s,it’s severely damaged in Wenchuan earthquake,the walls of the house was strengthened after the earthquake which adopted the method of implanting steel bar-cementing in slurry-spraying concrete to reinforcement.According to the damage,five kinds of reinforcement design schemes are adopted and comparative analysis with designing and analysis software PKPM is carried out.The results shows that: using local treatment programs to 1-3 layers vertical wall can effectively improve shear capability of the wall and aseismic capability of the house.The construction quality and administrative need strict management.After four times exceeding 5 earthquake,the house has not damaged,which prove the reinforcement to be certain feasible.
A masonry structure building built in 1980’s,it’s severely damaged in Wenchuan earthquake,the walls of the house was strengthened after the earthquake which adopted the method of implanting steel bar-cementing in slurry-spraying concrete to reinforcement.According to the damage,five kinds of reinforcement design schemes are adopted and comparative analysis with designing and analysis software PKPM is carried out.The results shows that: using local treatment programs to 1-3 layers vertical wall can effectively improve shear capability of the wall and aseismic capability of the house.The construction quality and administrative need strict management.After four times exceeding 5 earthquake,the house has not damaged,which prove the reinforcement to be certain feasible.
引文
[1]清华大学、西南交通大学、北京交通大学土木工程结构专家组.汶川地震建筑震害分析[J].建筑结构学报,2008,(4):1～9Civil and Structural Groups of Tsinghua University,Xinan Jiaotong University and Beijing JiaotongUniversity.Analysis on Seismic Damage of Buildings inthe Wenchuan Earthquake[J].Journal of BuildingStructures,2008,29(4):1～9(in Chinese)
[2]王亚勇.汶川地震建筑震害启示.[J].建筑结构学报,2008,29(4):26～33Wang Ya-yong.Lessons learned from building damagesin the Wenchuan earthquake—three earthquakeperformance objectives and basic requirements forseismic design of buildings[J].Journal of BuildingStructures,2008,29(4):26～33(in Chinese)
[3]GB 50011-2001,建筑抗震设计规范[S]GB 50011-2001,Code for Seismic Design of Building[S](in Chinese)
[4]JGJ116-98,建筑抗震加固技术规程[S]JGJ116-98,Technical Specification for Seismic Strengthening for Buildings[S](in Chinese)
[5]03SG611,砖混结构加固与修复图集[S].北京:中国建筑标准设计研究院,200303SG611,Atlas of Brick-concrete StructureReinforcement and Repair[S].Beijing:China BuildingStandard Design&Research Institute,2003(inChinese)
[6]辛高伟.基于Pushover方法的砌体结构中小学建筑抗震性能评枯[D].西安:西安建筑科技大学,2009Xin Gao-wei.Seismic Evaluation of Masonry StructuresBased on Push over Method for Primary and MiddleSchool Buildings[D].Xi’an:Xi’an University ofArchitecture and Technology,2009(in Chinese)
[7]马杰.某砌体结构旅馆的加固设计[J].四川建筑科学研究,2009,(1):94～95Ma Jie.Reinforcement design of a masonry hotelsstructure[J].Sichuan Building Science,2009,(1):94～95(in Chinese)
[8]张惠英,吴朋.利用夹板墙加固计算方法的探讨[A].全国砌体结构学术会议论文集(现代砌体结构)[C],北京:中国建筑工业出版社,2001,417～419Zhang Hui-ying,Wu Peng.Reinforcement wall usedmethod of plywood[A].National Masonry University ofTechnology(modern masonry structures)[C],Beijing:China Architecture Industry Press,2001,417～419(inChinese)
[2]王亚勇.汶川地震建筑震害启示.[J].建筑结构学报,2008,29(4):26～33Wang Ya-yong.Lessons learned from building damagesin the Wenchuan earthquake—three earthquakeperformance objectives and basic requirements forseismic design of buildings[J].Journal of BuildingStructures,2008,29(4):26～33(in Chinese)
[3]GB 50011-2001,建筑抗震设计规范[S]GB 50011-2001,Code for Seismic Design of Building[S](in Chinese)
[4]JGJ116-98,建筑抗震加固技术规程[S]JGJ116-98,Technical Specification for Seismic Strengthening for Buildings[S](in Chinese)
[5]03SG611,砖混结构加固与修复图集[S].北京:中国建筑标准设计研究院,200303SG611,Atlas of Brick-concrete StructureReinforcement and Repair[S].Beijing:China BuildingStandard Design&Research Institute,2003(inChinese)
[6]辛高伟.基于Pushover方法的砌体结构中小学建筑抗震性能评枯[D].西安:西安建筑科技大学,2009Xin Gao-wei.Seismic Evaluation of Masonry StructuresBased on Push over Method for Primary and MiddleSchool Buildings[D].Xi’an:Xi’an University ofArchitecture and Technology,2009(in Chinese)
[7]马杰.某砌体结构旅馆的加固设计[J].四川建筑科学研究,2009,(1):94～95Ma Jie.Reinforcement design of a masonry hotelsstructure[J].Sichuan Building Science,2009,(1):94～95(in Chinese)
[8]张惠英,吴朋.利用夹板墙加固计算方法的探讨[A].全国砌体结构学术会议论文集(现代砌体结构)[C],北京:中国建筑工业出版社,2001,417～419Zhang Hui-ying,Wu Peng.Reinforcement wall usedmethod of plywood[A].National Masonry University ofTechnology(modern masonry structures)[C],Beijing:China Architecture Industry Press,2001,417～419(inChinese)
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