【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。更多还原

【Abstract】 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.更多还原