架空直立式码头结构三维数值塑性破坏分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
利用有限元法对性质复杂的混凝土结构——架空直立式码头进行塑性破坏分析,其中包括根据室内模型试验得到的混凝土参数,利用有限元软件进行数值模拟分析;结合重庆市寸滩码头模型试验资料,对数值模拟结果进行对比分析。结果表明:码头结构在受到顶层撞击力后最先破坏的是结构底层的联系梁;随着撞击荷载的增大,结构上部的纵撑、横撑两端均出现不同程度的开裂区,但整个结构未出现较大位移,表明此种结构具有较强的塑性变形能力,符合框架结构的设计原则,与试验数据比较吻合。
This paper describes the use of finite element method,the complex nature of concrete structures-Aerial Tower Pier plastic failure analysis,including the concrete parameters obtained from the indoor model test,the use of finite element software for numerical simulation analysis;combined with Chongqing Cuntan Terminal model test data,the numerical simulation results were comparatively analyzed.The results show that the bottom of link beam was firstly structural damaged after the top-level terminal structure was hit by impact force;as the impact load increases,both ends of vertical supports and horizontal stays at the upper of structure appear varying degrees of crack area,but a larger displacement has not appear in the whole structure.It indicates that this structure has a strong plastic deformation capacity,meets frame structure design principles,and conforms well to the experimental data.
引文
[1]陈惠发.土木工程材料的本构方程[M].余天庆译.武汉:华中科技大学出版社,2001.192-201.
    [2]吕西林,金国芳,吴晓涵.钢筋混凝土结构非线性有限元理论与应用[M].上海:同济大学出版社,1997.
    [3]谢贻权,何福保.弹性和塑性力学中的有限单元法[M].北京:机械工业出版社,1981.
    [4]汪冬生,吴铁君.ANSYS中的钢筋混凝土单元[J].武汉理工大学学报,2004,4(28).
    [5]JTJ285-2000.港口工程嵌岩桩设计与施工规范[S].
    [6]JTJ215-98.港口工程荷载规范[S].
    [7]王多垠,石兴勇,丁德斌,等.内河架空直立式集装箱码头结构计算中的作用效应组合探讨[J].中国港湾建设,2005,(4):33-35.
    [8]王多垠,何光春.寸滩集装箱码头结构模型试验分析报告[R].重庆:重庆交通大学,2005:41-46.
    [9]管品武,陈萌,刘立新,等.混凝土框架柱塑性铰区域剪切破坏形态的试验研究[J].世界地震工程,2003,19(4):24-27.

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