架空直立式码头结构三维数值塑性破坏分析  

Overhead Vertical Pier Structures Three-dimensional Numerical Analysis of Plastic Failure

作　　者：邓方明[1] 何光春[2] 王多垠[2] 陈学梅 

机构地区：[1]四川省交通厅交通勘察设计研究院,四川成都610017 [2]重庆交通大学,重庆400074 [3]重庆商务学校,重庆400080

出　　处：《中国港湾建设》2009年第6期9-11,27,共4页China Harbour Engineering

基　　金：交通部西部交通建设科技项目(200332822258)

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.

关 键 词：框架码头 混凝土结构 有限元法 模型试验 塑性铰 

分 类 号：U656[交通运输工程—港口、海岸及近海工程]