夯土住宅结构性能分析及加固方法
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摘要
以现存夯土住宅为研究对象,在获得实地调研数据的基础上,建立有限元分析模型。通过静力分析、地震反应谱分析,探讨了夯土住宅的受力变形特点,结果表明檩-墙连接部位、山墙中部以及纵墙顶面部位是结构的薄弱部位。针对上述问题,提出了分别在檩条下设置弧形垫块、山墙外设置扶壁柱和纵墙顶面设置木圈梁的解决方法,并通过分析证明了其合理性,以供此类建筑的加固改造参考。
This paper takes the existing rammed earth buildings as the research object.Based on the site investigation data,authors established a finite element model.Through the static analysis and the seismic response spectrum analysis,authors explored the stresses and deformation characteristics of such buildings,and the results show that the purlin-wall connection,the central part of the gable and the top surface of the longitudinal wall are the weak positions of the structure.Aiming at these problems,the placement of the arc-shaped cushion block under the purlin,the arrangement of buttress that attach to the gable and the use of wooden ring beam that puts on the top of the rammed earth wall were proposed.The rationality of the solution proposed above was proved through analysis.These will provide a reference to the reinforcement and reconstruction of these buildings
This paper takes the existing rammed earth buildings as the research object.Based on the site investigation data,authors established a finite element model.Through the static analysis and the seismic response spectrum analysis,authors explored the stresses and deformation characteristics of such buildings,and the results show that the purlin-wall connection,the central part of the gable and the top surface of the longitudinal wall are the weak positions of the structure.Aiming at these problems,the placement of the arc-shaped cushion block under the purlin,the arrangement of buttress that attach to the gable and the use of wooden ring beam that puts on the top of the rammed earth wall were proposed.The rationality of the solution proposed above was proved through analysis.These will provide a reference to the reinforcement and reconstruction of these buildings
引文
[1]李钢,刘晓宇,李宏男.汶川地震村镇房屋结构震害调查与分析[J].大连理工大学学报,2009,9(5):724-729.LI Gang,LIU Xiaoyu,LI Hongnan.Seismic damage investigation and analysis on rural buildings in Wenchuan earthquake[J].Journal of DalianUniversity of Technology,2009,9(5):724-729.
[2]童丽萍,张琰鑫.农村夯土类建筑地震反应分析[J].世界地震工程,2009,25(2):36-40TONG Liping,ZHANG Yanxin.Seismic response analysis for rammed earth buildings[J].World Earthquake Engineering,2009,25(2):36-40.
[3]翟慧娟.西安东门城楼城墙弹塑性有限元分析[D].西安:长安大学,2005.ZHAI Huijuan.Research on elastoplastic finite element on the timber and rampart of xi'an east city gate[D].Xi’an:Chang’an University,2005
[4]列别雷金.简明木材学[M].北京:中国林业出版社,1958.Л.М.Перелыгин.Concise wood science[M].Bei jing:China Forestry Publishing House,1958.
[5]克拉夫R W,彭津J.结构动力学[M].北京:科学出版社,1981.R.W.Clough J.Penzien.Structural dynamics[M].Bei jing:Science press,1981.
[6]郝文化叶裕明刘春山,等.ANSYS土木工程应用实例[M].北京:中国水利水电出版社,2005.HAO Wenhua,YE Yuming,LIU Chunshan etc.The application example of Ansys for civil engineering[M].Bei jing:China Waterpower Press,2005.
[7]GB50011-2010,建筑抗震设计规范[S]GB 50011-2010,Code for Seismic Design of Buildings[S].
[2]童丽萍,张琰鑫.农村夯土类建筑地震反应分析[J].世界地震工程,2009,25(2):36-40TONG Liping,ZHANG Yanxin.Seismic response analysis for rammed earth buildings[J].World Earthquake Engineering,2009,25(2):36-40.
[3]翟慧娟.西安东门城楼城墙弹塑性有限元分析[D].西安:长安大学,2005.ZHAI Huijuan.Research on elastoplastic finite element on the timber and rampart of xi'an east city gate[D].Xi’an:Chang’an University,2005
[4]列别雷金.简明木材学[M].北京:中国林业出版社,1958.Л.М.Перелыгин.Concise wood science[M].Bei jing:China Forestry Publishing House,1958.
[5]克拉夫R W,彭津J.结构动力学[M].北京:科学出版社,1981.R.W.Clough J.Penzien.Structural dynamics[M].Bei jing:Science press,1981.
[6]郝文化叶裕明刘春山,等.ANSYS土木工程应用实例[M].北京:中国水利水电出版社,2005.HAO Wenhua,YE Yuming,LIU Chunshan etc.The application example of Ansys for civil engineering[M].Bei jing:China Waterpower Press,2005.
[7]GB50011-2010,建筑抗震设计规范[S]GB 50011-2010,Code for Seismic Design of Buildings[S].
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