地震作用下烟气脱硫吸收塔稳定计算分析
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摘要
建立了烟气脱硫吸收塔的三维有限元分析模型,采用时程分析法计算出了El-Centro波和Taft波作用下的压应力,用壳体屈曲问题的状态方程计算出了烟气脱硫吸收塔局部屈曲的临界应力,结果发现,在多遇地震下塔体均不会发生稳定破坏,罕遇地震下一些应力集中部位超过了临界承载力.
By establishing the finite element 3-D model of smoking desulfuration absorber tower and by the time-history analysis,this paper analyzes the compressive stress,El-Centro and Taft wave as the excitation.The structure of the desulfuration meets the demand of the stability and will not lose steadiness under frequent earthquakes and in unusual earthquakes the compressive stress exceeds critical bearing capacity in the stress concentration position.
By establishing the finite element 3-D model of smoking desulfuration absorber tower and by the time-history analysis,this paper analyzes the compressive stress,El-Centro and Taft wave as the excitation.The structure of the desulfuration meets the demand of the stability and will not lose steadiness under frequent earthquakes and in unusual earthquakes the compressive stress exceeds critical bearing capacity in the stress concentration position.
引文
[1]陈绍蕃.钢结构稳定设计指南(第二版)[M].北京:中国建筑工业出版社,2004.
[2]张波,盛和太.ANSYS有限元数值分析原理与工程应用[M].北京:清华大学出版社,2005.
[3]GB J5001-2001.建筑抗震设计规范[S].
[4]范家让,盛宏玉.任意厚度叠层圆柱壳动力响应的状态变量法[J].合肥工业大学学报,2004,(5):491-494.
[5]盛宏玉.具有自由边的层合开口柱壳弯曲问题的解析解[J].中国科技大学学报,2005,(4):464—468.
[2]张波,盛和太.ANSYS有限元数值分析原理与工程应用[M].北京:清华大学出版社,2005.
[3]GB J5001-2001.建筑抗震设计规范[S].
[4]范家让,盛宏玉.任意厚度叠层圆柱壳动力响应的状态变量法[J].合肥工业大学学报,2004,(5):491-494.
[5]盛宏玉.具有自由边的层合开口柱壳弯曲问题的解析解[J].中国科技大学学报,2005,(4):464—468.
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