考虑相邻结构段作用的高桩码头设计方法

高桩码头有限元计算通常选取一个结构段进行分析计算,忽略结构段之间凹凸缝的传力作用,从而导致计算结果较保守,不利于当前环境下与国际咨询设计公司的竞争。基于SAP2000有限元计算软件,在计算模型中引入水平线性弹簧单元,模拟相邻结构端的凹凸缝的水平约束作用,并建立整体模型分析验证该弹簧单元的有效性。最后给出水平线性弹簧刚度随结构段数量增加而改变的曲线,为高桩码头计算提供参考。计算结果表明水平线性弹簧单元和实际整体模型的桩内力计算误差都在合理范围以内,验证了该方法有效性。引入等效侧向弹性用于高桩码头结构设计计算,给出一种优化的高桩结构设计方法。

Design method for high-pile wharf taking the influence of adjacent structural segment into account

In the finite element calculation of high pile wharf,a structural section is usually selected for analysis and calculation,and the force transfer effect of jagged joints between structural sections is ignored,resulting in conservative calculation results,which is not conducive to the competition with international consulting and design companies in the current environment.Therefore,based on SAP2000 finite element calculation software,the horizontal linear spring element is introduced into the calculation model to simulate the horizontal constraint effect of the jagged joints,and the overall model is established to analyze and verify the effectiveness of the spring element.Finally,the curve of the horizontal linear spring stiffness changing with the increase of the number of structural sections is given,which provides a reference for the calculation of high pile wharf.The results show that the calculation errors of the internal forces of the horizontal linear spring element and the actual jagged joints are within a reasonable range,which verifies the effectiveness of the method.The equivalent lateral elasticity is introduced into the structural design calculation of high pile wharf,so an optimal design method of high pile structure is given.