基于地震响应时程的多层轻钢结构特性
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摘要
通过对轻钢结构的地震响应特征进行研究,采用有限元方法对轻钢结构模型进行非线性地震响应分析,研究顶层位移和其他各层位移的变化,比较60,100,120,160mm几种不同厚度楼板的地震波响应,得到计算模型的应变、应力关系。研究结果表明:不同厚度楼板对相同的地震波有不同的地震响应,当楼板厚度为120mm和160mm时,对地震波产生的响应最为强烈;多层轻钢结构具有很好的剪切变形;在多层结构设计时,应该根据具体要求定性分析和定量计算楼板厚度对抗震性能的影响。
Through the research on the seismic response characteristics of light steel structure,the finite element method was used to analyze the nonlinear seismic response of light steel structure model.The change of top displacement and other each layer displacement were compared,and the strain and stress relation of the computation model was obtained by the seismic wave response analysis of several different thickness floors which were 60 mm,100 mm,120 mm and 160 mm.The results indicate that the different thickness floors have different seismic responses to the same seismic waves.The response to seismic waves is most strongly when the floor thickness is 120 mm or 160 mm.The multi-storey light steel structure has good shear deformation,so the qualitative analysis and quantitative calculation should be used to analyze the influence of the thickness of floors to the seismic performance.
Through the research on the seismic response characteristics of light steel structure,the finite element method was used to analyze the nonlinear seismic response of light steel structure model.The change of top displacement and other each layer displacement were compared,and the strain and stress relation of the computation model was obtained by the seismic wave response analysis of several different thickness floors which were 60 mm,100 mm,120 mm and 160 mm.The results indicate that the different thickness floors have different seismic responses to the same seismic waves.The response to seismic waves is most strongly when the floor thickness is 120 mm or 160 mm.The multi-storey light steel structure has good shear deformation,so the qualitative analysis and quantitative calculation should be used to analyze the influence of the thickness of floors to the seismic performance.
引文
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[14]杨维国,陈丹,潘多俊.不同结构体系对钢结构框架侧向刚度的影响[J].建筑科学与工程学报,2010,27(2):102-105.YANG Wei-guo,CHEN Dan,PAN Duo-jun.Effectsof different structural systems on lateral rigidity ofsteel structural frames[J].Journal of Architectureand Civil Engineering,2010,27(2):102-105.(in Chi-nese)
[2]童悦仲,娄乃琳.美国的多层轻钢结构住宅[J].住宅科技,2004(11):32-34.TONG Yue-zhong,LOU Nai-lin.Multi-storey lightsteel structure housing in America[J].Housing Sci-ence,2004(11):32-34.(in Chinese)
[3]王元清,石永久,陈宏,等.现代轻钢结构建筑及其在我国的应用[J].建筑结构学报,2002,23(1):2-8.WANG Yuan-qing,SHI Yong-jiu,CHEN Hong,etal.Contemporary lightweight steel structure and itsapplication in China[J].Journal of Building Struc-tures,2002,23(1):2-8.(in Chinese)
[4]黄炳生,舒赣平,吕志涛.多层轻钢框架的地震时程分析[J].工业建筑,2001,31(8):5-7,22.HUANG Bing-sheng,SHU Gan-ping,LU Zhi-tao.Earthquake time history analysis for multi-storeylight steel frames[J].Industrial Construction,2001,31(8):5-7,22.(in Chinese)
[5]黄怡,王元清,陈宏,等.多层轻钢框架结构的抗震性能分析[J].工业建筑,2006,36(12):73-75.HUANG Yi,WANG Yuan-qing,CHEN Hong,et al.Analysis of aseismic properties of light-weight steelmulti-storey structure[J].Industrial Construction,2006,36(12):73-75.(in Chinese)
[6]刘歌青,石永久,王元清,等.纯框架体系在多层轻钢住宅中的应用研究[J].工业建筑,2002,32(12):64-66,85.LIU Ge-qing,SHI Yong-jiu,WANG Yuan-qing,et al.Application of light-steel moment resisting frames onmulti-storey residential building[J].Industrial Con-struction,2002,32(12):64-66,85.(in Chinese)
[7]郭兵,纪伟东,赵永生,等.多层民用钢结构房屋设计[M].北京:中国建筑工业出版社,2005.GUO Bing,JI Wei-dong,ZHAO Yong-sheng,et al.Multilayer civil steel structure housing design[M].Beijing:China Building Press,2005.(in Chinese)
[8]李围,叶裕明,刘青山,等.ANSYS土木工程应用实例[M].2版.北京:中国水利水电出版社,2007.LI Wei,YE Yu-ming,LIU Qing-shan,et al.ANSYScivil engineering application examples[M].2nd ed.Beijing:China Water Power Press,2007.(in Chinese)
[9]王景鹏.高层框架剪力墙结构动力特性研究及地震作用时程反应分析[D].西安:长安大学,2009.WANG Jing-peng.Study of dynamic characteristicsand analysis of seismic responses of frame-shear wallstructures[D].Xi’an:Changan University,2009.(inChinese)
[10]王勖成,卲敏.有限单元法基本原理和数值方法[M].北京:清华大学出版社,1997.WANG Xu-cheng,SHAO Min.Basic principles of fi-nite element method and numerical method[M].Tsin-ghua University Press,1997.(in Chinese)
[11]李悦,周孝军,李清海,等.轻钢结构住宅模型动力特性测试与分析[J].建筑技术,2009,40(4):324-326.LI Yue,ZHOU Xiao-jun,LI Qing-hai,et al.Dynamiccharacteristic test and analysis of light steel structureresidential modal[J].Architecture Technology,2009,40(4):324-326.(in Chinese)
[12]贾连光,许峰,张绍武,等.轻型钢框架结构的抗震性能试验研究[J].工业建筑,2005,35(10):64-68.JIA Lian-guang,XU Feng,ZHANG Shao-wu,et al.Experimental study on aseismatic property of light-weight steel frame[J].Industrial Construction,2005,35(10):64-68.(in Chinese)
[13]宋锋,王元清,石永久。钢结构跃层加层的地震反应分析[J].建筑科学与工程学报,2009,26(1):55-61SONG Feng,WANG Yuan-qing,SHI Yong-jiu.Seismic response analysis of adding extra-floors span-ning existing building with steel structure[J].Jour-nal of Architecture and Civil Engineering,2009,26(1):55-61.(in Chinese)
[14]杨维国,陈丹,潘多俊.不同结构体系对钢结构框架侧向刚度的影响[J].建筑科学与工程学报,2010,27(2):102-105.YANG Wei-guo,CHEN Dan,PAN Duo-jun.Effectsof different structural systems on lateral rigidity ofsteel structural frames[J].Journal of Architectureand Civil Engineering,2010,27(2):102-105.(in Chi-nese)
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