对浮船坞结构强度的探讨

Discussion about the Structure Strength of Floating Dock

浮船坞的结构设计中,除了依据规范计算外,还需应用有限元方法。对于浮船坞而言,由于其型尺度和作业工况特殊,因此总强度、纵强度、横强度等结构要求比较高。设计者需要谨慎细致地依照规范的要求来计算设计,使得结构能完好地满足危险载荷状态下的纵向强度和横向强度的要求。有限元计算除了施加了规范载荷,还额外加入了局部载荷。有限元计算结果提醒了设计者,在浮船坞结构设计过程中,对于主要承载结构需要进行合理地设计,以保证强度满足作业要求。

During the structural design of floating dock, the finite element method was applied as well as calculations according to the rules. Because of the special dimension and working condition of floating dock,the general strength, such as longitudinal strength and transverse strength,was performed strictly to the structure. Commonly, according to rules,the designer did the best to make the structure strength meet the requirements of longitudinal and transverse strength under the dangerous loading condition. However,the results gained through finite element analysis were larger because of the local loads were associated with the general rule loads. Such result reminded the designers that the main support structure should be designed reasonably.