高桩梁板式码头空间结构计算中忽略面板作用的方法

Ignoring slab effect method in spatial structure calculation for beam-slab wharf on high piles

针对最新颁布的《高桩码头设计与施工规范》中的建议——高桩梁板式码头按空间结构计算时,宜忽略面板的作用来计算纵梁和横梁的内力,选取湛江某高桩码头工程的一个结构段为工程实例,采用有限元分析软件ANSYS建立多种空间结构计算模型,研究两种忽略面板作用的建模方法,并通过对比各模型的计算结果,分析高桩梁板式码头空间结构计算中面板刚度发挥的作用。对比结果表明:把面板的弹性模量设成一极小值是高桩梁板式码头空间结构计算中忽略面板作用较为简便且可行的方法,为高桩码头设计者提供了参考。

In view of the suggestions from the newly issued Design and Construction Code for Open Type Wharf on Piles that slab effect should be ignored for calculating internal force of longitudinal beams and cross beams in spatial structure calculation for beam-slab wharf on high piles, we take a structural section of a high-pile wharf project in Zhanjiang as an engineering example, and establish several spatial structure calculation models by ANSYS to study two modeling methods of ignoring slab effect and analyze the slab stiffness effect in spatial structure calculation for beam-slab wharf on high piles by comparing the calculation results of various models. The comparison results show that setting the elastic modulus of slab to the minimum value is a convenient and feasible method of ignoring slab effect in spatial structure calculation for beam-slab wharf on high piles, which provide a reference for high-pile wharf designers.