ANSYS对钢框架结构地震谱响应的计算分析
|
摘要
本文采用ANSYS有限元分析法,进行框架结构地震作用按照地震谱响应计算的分析,以某十层钢框架结构为例,进行模态求解,谱响应分析,模态扩展,模态合并以及时程分析的模拟。结果表明,模态分析得到钢框架的固有频率和振型,可以在设计阶段使结构的自振周期远离主振周期;谱响应分析得到地震谱响应曲线和响应振型,将两者结合考虑可发现发生共振情况的振型和频率,从而测试结构在地震时抗共振的能力,避免钢框架结构在发生地震时由于共振而产生的破坏。
This article uses the ANSYS finite element analysis. The frame structures under earthquake action in accordance with the seismic spectral response are analyzed. With a 10 layer of steel frame structure as an example the modal solving spectral response analysis,modal expansion,modal mergers and schedule analysis of the simulation. The results show that the modal analysis to obtain the natural frequencies and mode shapes of the steel frame. The vibration period of the structure is away from main vibration cycle at the design stage and earthquake spectral response curve and response modal spectral response analysis. Consider the combination of the two can found that the vibration and resonance frequency. All above can avoid the steel frame structure during an earthquake due to damage as a result of the resonance.
This article uses the ANSYS finite element analysis. The frame structures under earthquake action in accordance with the seismic spectral response are analyzed. With a 10 layer of steel frame structure as an example the modal solving spectral response analysis,modal expansion,modal mergers and schedule analysis of the simulation. The results show that the modal analysis to obtain the natural frequencies and mode shapes of the steel frame. The vibration period of the structure is away from main vibration cycle at the design stage and earthquake spectral response curve and response modal spectral response analysis. Consider the combination of the two can found that the vibration and resonance frequency. All above can avoid the steel frame structure during an earthquake due to damage as a result of the resonance.
引文
[1]徐鹤山.ANSYS建筑钢结构工程实例分析[M].北京:机械工业出版社,2011.
[2]花能新,叶献国.基于ANSYS的巨型框架结构体系地震响应分析[J].合肥工业大学学报:自然科学版,2011,34(4):545-548.
[3]裴永生,李淑慧,赵亦希,等.多点成形有限元参数化建模的研究[J].河北科技大学学报,2012,33(6):564-568.
[4]GB50011-2010,建筑抗震设计规范[S].
[5]AVERY P,MAHENDRAN M.Analytical benchmark solutions for steel frame structures subject to local buckling effects[J].Journal of Multi Science Advances in Structural Engineering:International,2009,3(3):215-229.
[6]孟庆骞.钢板剪力墙的极限抗剪承载力[J].黑龙江科技学院学报,2012,22(2):42-45.
[7]杜加清,夏军武.半刚性钢框架竖向跨间刚度计算[J].黑龙江科技学院学报,2012,22(2):33-37.
[8]张朝晖.ANSYS12.0结构分析工程应用实例解析[M].北京:机械工业出版社,2010.
[9]朱庆杰,代兆立,周云章,等.结构抗震设计中最大地震影响系数的计算[J].华中科技大学学报:城市科学版,2008,25(3):42-45.
[2]花能新,叶献国.基于ANSYS的巨型框架结构体系地震响应分析[J].合肥工业大学学报:自然科学版,2011,34(4):545-548.
[3]裴永生,李淑慧,赵亦希,等.多点成形有限元参数化建模的研究[J].河北科技大学学报,2012,33(6):564-568.
[4]GB50011-2010,建筑抗震设计规范[S].
[5]AVERY P,MAHENDRAN M.Analytical benchmark solutions for steel frame structures subject to local buckling effects[J].Journal of Multi Science Advances in Structural Engineering:International,2009,3(3):215-229.
[6]孟庆骞.钢板剪力墙的极限抗剪承载力[J].黑龙江科技学院学报,2012,22(2):42-45.
[7]杜加清,夏军武.半刚性钢框架竖向跨间刚度计算[J].黑龙江科技学院学报,2012,22(2):33-37.
[8]张朝晖.ANSYS12.0结构分析工程应用实例解析[M].北京:机械工业出版社,2010.
[9]朱庆杰,代兆立,周云章,等.结构抗震设计中最大地震影响系数的计算[J].华中科技大学学报:城市科学版,2008,25(3):42-45.
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