两层轻钢龙骨体系动力特性及地震位移反应分析
|
摘要
由于和传统钢结构形式有差别,轻钢龙骨体系在计算地震剪力时,自振周期按《荷载规范》附录中的经验公式取值不尽合理,有必要对这种结构形式的动力特性及地震位移反应进行研究。以一两层格构轻钢龙骨教学楼为例,采用有限元软件ABAQUS对结构进行了整体建模,得到其前20阶自振频率及前3阶振型,分别采用底部剪力法和时程分析法分析了结构的地震位移反应,并进行了比较,为结构设计和计算提供方便。
As the difference with the traditional steel,it is not quite reasonable to take the vibration period base on the empirical formula in the "Load Code" appendix when calculating the seismic shear for the light gauge steel system.It is necessary to take a research to the dynamic properties and seismic displacement responses of such kind of steel structure.In this paper,a 2-storey light gauge steel teaching building was taken as an example.The finite element software ABAQUS was selected to build the whole structural analysis model,and the top 20 natural frequencies and the former 3 vibration modes were provided.The bottom shear way and time-history analysis method were separately used to calculate the seismic displacement responses,and the calculation results were given and compared.The research results can provide convenient for the structural design and calculation.
As the difference with the traditional steel,it is not quite reasonable to take the vibration period base on the empirical formula in the "Load Code" appendix when calculating the seismic shear for the light gauge steel system.It is necessary to take a research to the dynamic properties and seismic displacement responses of such kind of steel structure.In this paper,a 2-storey light gauge steel teaching building was taken as an example.The finite element software ABAQUS was selected to build the whole structural analysis model,and the top 20 natural frequencies and the former 3 vibration modes were provided.The bottom shear way and time-history analysis method were separately used to calculate the seismic displacement responses,and the calculation results were given and compared.The research results can provide convenient for the structural design and calculation.
引文
[1]刘晓,王兵,阎东.国外低层钢结构住宅结构体系分析[J].沈阳大学学报,2005,17(2):31-33.
[2]王小平,蒋沧如,蔡江勇,等.一种新型轻钢结构——无比轻钢龙骨体系[J].钢结构,2007,22(3):21-25.
[3]石红雷,王小平,徐磊.某轻钢结构宿舍楼计算方法的研究[J].钢结构,2009,29(4):12-16.
[4]王小平,刘峰,袁巧云,等.新型轻钢龙骨体系桁架梁承载力试验研究[J].武汉理工大学学报,2006,28(6):57-61.
[5]李书进,毛羚.新型轻钢结构足尺房屋模型振动台试验及有限元分析[J].钢结构,2010,25(130):19-22.
[6]王小平,刘峰,蒋沧如.新型轻钢龙骨体系水平位移有限元分析方法[J].工业建筑,2006(7):83-86.
[7]张明远,王小平,周操,等.新型轻钢龙骨体系墙体计算方法研究[J].华中科技大学学报:城市科学版,2007,24(4):49-53.
[8]中华人民共和国建设部.GB50009—2001建筑结构荷载规范[S].2006年版.北京:中国建筑工业出版社,2006.
[9]中华人民共和国建设部.GB500011—2001建筑抗震设计规范[S].2008修订版.北京:中国建筑工业出版社,2008.
[10]高小旺.建筑抗震设计规范理解与应用[M].北京:中国建筑工业出版社,2002.
[2]王小平,蒋沧如,蔡江勇,等.一种新型轻钢结构——无比轻钢龙骨体系[J].钢结构,2007,22(3):21-25.
[3]石红雷,王小平,徐磊.某轻钢结构宿舍楼计算方法的研究[J].钢结构,2009,29(4):12-16.
[4]王小平,刘峰,袁巧云,等.新型轻钢龙骨体系桁架梁承载力试验研究[J].武汉理工大学学报,2006,28(6):57-61.
[5]李书进,毛羚.新型轻钢结构足尺房屋模型振动台试验及有限元分析[J].钢结构,2010,25(130):19-22.
[6]王小平,刘峰,蒋沧如.新型轻钢龙骨体系水平位移有限元分析方法[J].工业建筑,2006(7):83-86.
[7]张明远,王小平,周操,等.新型轻钢龙骨体系墙体计算方法研究[J].华中科技大学学报:城市科学版,2007,24(4):49-53.
[8]中华人民共和国建设部.GB50009—2001建筑结构荷载规范[S].2006年版.北京:中国建筑工业出版社,2006.
[9]中华人民共和国建设部.GB500011—2001建筑抗震设计规范[S].2008修订版.北京:中国建筑工业出版社,2008.
[10]高小旺.建筑抗震设计规范理解与应用[M].北京:中国建筑工业出版社,2002.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心