海港工程活动式防浪结构有限元分析

针对一种新型海港活动式防浪结构,基于有限元法建立4种分析模型进行模拟计算。对比分析可知,利用接触面上节点自由度耦合方式创建的有限元模型更适用。运用上述有限元模型,分别对活动式防浪结构的应力、位移和螺栓内力进行求解,以及分析钢材厚度变化对组合结构力学性能的影响。结果表明:钢构件下端拉、压应力较大,需重点加强;板厚越小,组合结构的应力和变形越敏感。结合防浪结构的安全性和经济性,提出设计和优化要点,为工程应用提供参考。

Finite element analysis of movable anti-wave structure in harbor engineering

Aiming at a new type of movable anti-wave structure in harbor engineering,we establish four kinds of analysis models based on the finite element method.The comparison of analysis shows that the finite element model created by coupling the degrees of freedom of the nodes at the contact surface is more applicable.We apply the above-mentioned finite element model to solve the stress,displacement and bolt internal forces of the movable anti-wave structure,and analyze the influence of the variation of the steel thickness on the mechanical properties of the composite structures.The results show that the tension and compression stress of the lower end of the steel members are relatively larger,and the situation needs to be emphasized.The smaller the thickness of the steel member is,the more sensitive the stress and displacement of the composite structures have.Combining safety with economy of the anti-wave structure,it puts forward the design and optimization points,and provides reference for the engineering application.