点支承两向叉筒单层网壳结构非线性动力稳定分析
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摘要
稳定性能是单层网壳结构设计的主要控制因素,动力稳定是单层网壳稳定性能的重要组成部分.本文利用非线性有限元理论对点支承两向叉筒单层网壳在地震荷载作用下的动力稳定性进行了分析.在数值分析过程中,利用比例法调整地震作用的峰值加速度,采用B-R准则判定结构的动力稳定临界荷载.通过分析对点支承两向叉筒单层网壳的动力稳定特性有了较全面的了解.
The stability behavior of single layer lattice shell structures is the main controlling factor for their structural design,and the dynamic stability is a primary part of the stability behavior.In this paper,based on nonlinear finite element theory,the dynamic stability of the point-supported single layer intersected cylindrical latticed shell structures under the earthquake load is analyzed.In the numerical analysis,the proportional method is used to adjust the acceleration value of the earthquake load,and the B-R rule is used to determine the dynamic stability critical load of the structure.Through the analysis,the behavior of the point-supported single layer intersected cylindrical latticed shell structure is investigated,and some suggestions to their structural design are presented.
The stability behavior of single layer lattice shell structures is the main controlling factor for their structural design,and the dynamic stability is a primary part of the stability behavior.In this paper,based on nonlinear finite element theory,the dynamic stability of the point-supported single layer intersected cylindrical latticed shell structures under the earthquake load is analyzed.In the numerical analysis,the proportional method is used to adjust the acceleration value of the earthquake load,and the B-R rule is used to determine the dynamic stability critical load of the structure.Through the analysis,the behavior of the point-supported single layer intersected cylindrical latticed shell structure is investigated,and some suggestions to their structural design are presented.
引文
[1]沈世钊,陈昕.网壳结构稳定性[M].北京:科学出版社,1999.
[2]陈昕.空间网格结构全过程分析及单层鞍形网壳的稳定性[D].哈尔滨:哈尔滨建筑工程学院,1990.
[3]孙建恒,夏亨熹.网壳结构非线性动力稳定分析[J].空间结构,1994,1(1):25~32.
[4]叶继红.单层网壳结构的动力稳定分析[D].上海:同济大学,1995.
[5]郭海山,钱宏亮,沈世钊.地震作用下单层球面网壳结构的动力稳定性[J].地震工程与工程振动,2003,23(1):31~37.
[6]王策,沈世钊.单层球面网壳结构动力稳定分析[J].土木工程学报,2000,33(2):17~24.
[7]薛素铎,曹资,王键宁.单层柱面网壳弹塑性地震反应特征[J].地震工程与工程振动,2002,22(1):56~60.
[8]顾磊,董石麟.叉筒网壳的建筑造型、结构形式与支承方式[J].空间结构,1999,5(3):3~11.
[9]马焕凤.单层两向柱面正交异型网壳的内力分析和非线性稳定研究[D].保定:河北农业大学,2002.
[10]任小强.带边桁架单层柱面正交异型网壳的静力特性分析[J].河北农业大学学报,2002,25(3):96~101.
[11]孙建恒.单层网壳非线性稳定分析的修正切线刚度矩阵[J].结构工程学报,1990,1(3-4):84~93.
[12]于建华,谢用九,魏泳涛.高等结构动力学[M].成都:四川大学出版社,2001.
[13]胡聿贤.地震工程学[M].北京:地震出版社,1988.
[14]沈世钊,支旭东.球面网壳结构在强震下的失效机理[J].土木工程学报,2005,38(1):11~20.
[2]陈昕.空间网格结构全过程分析及单层鞍形网壳的稳定性[D].哈尔滨:哈尔滨建筑工程学院,1990.
[3]孙建恒,夏亨熹.网壳结构非线性动力稳定分析[J].空间结构,1994,1(1):25~32.
[4]叶继红.单层网壳结构的动力稳定分析[D].上海:同济大学,1995.
[5]郭海山,钱宏亮,沈世钊.地震作用下单层球面网壳结构的动力稳定性[J].地震工程与工程振动,2003,23(1):31~37.
[6]王策,沈世钊.单层球面网壳结构动力稳定分析[J].土木工程学报,2000,33(2):17~24.
[7]薛素铎,曹资,王键宁.单层柱面网壳弹塑性地震反应特征[J].地震工程与工程振动,2002,22(1):56~60.
[8]顾磊,董石麟.叉筒网壳的建筑造型、结构形式与支承方式[J].空间结构,1999,5(3):3~11.
[9]马焕凤.单层两向柱面正交异型网壳的内力分析和非线性稳定研究[D].保定:河北农业大学,2002.
[10]任小强.带边桁架单层柱面正交异型网壳的静力特性分析[J].河北农业大学学报,2002,25(3):96~101.
[11]孙建恒.单层网壳非线性稳定分析的修正切线刚度矩阵[J].结构工程学报,1990,1(3-4):84~93.
[12]于建华,谢用九,魏泳涛.高等结构动力学[M].成都:四川大学出版社,2001.
[13]胡聿贤.地震工程学[M].北京:地震出版社,1988.
[14]沈世钊,支旭东.球面网壳结构在强震下的失效机理[J].土木工程学报,2005,38(1):11~20.
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