施工宽缝对整体式闸首底板的受力影响研究

鉴于整体式闸首底板在顺水流方向易出现裂缝,严重危害船闸的使用安全。本文提出的设置施工宽缝的施工方案可以有效改善整体式闸首底板开裂问题。首先运用ANSYS软件建立模型,对闸首结构进行有限元分析,进一步探索出施工宽缝对整体式闸首底板的应力与变形的影响,将应力计算结果转换成内力,最终研究出满足工程要求的最优合缝时间和设缝位置,从而为整体式船闸的施工提供参考。

Influence of construction wide joint on stress of integral lock head's floor

The integral lock head''s floor easily appears cracks in the direction of water flow,which seriously harms the use safety of locks. The scheme of construction wide joints can effectively improve the cracking problem of integral lock head floor . The paper first applied ANSYS software to set up model,carried out finite element analysis for lock head'' structure and further researched the influence of wide construction joints on the stress and deformation of the floor.It converted the stress result into internal force and finally got the optimum closed time and location which could meet the engineering requirement so as to provide reference. The result can provide reference for the construction of integral lock head.