桁架式近海结构物整体波浪载荷分析

本文以各种直径、杆件方向和长度各异的圆柱型壳体水下杆件为主要构成形式的桁架式近海结构物为对象，首先逐一计算组成桁架式结构的每一杆件的波浪力，然后对这些单一杆件的波浪力进行叠加来得到结构物的整体波浪载荷，在此基础上分析在不同的波高、周期以及浪向等波浪环境下结构物的动力响应，分析不同的结构形式对波浪载荷响应的影响。本文的计算结果可为结构物在波浪环境下整体极限波浪载荷以及在这些极限载荷作用下结构物的水动力特性评估提供依据，同时利用本文所提出的方法，也可以计算桁架式近海结构物在设计波作用下的整体弯矩、剪切力以及设计者所需要了解的波浪载荷沿结构物特定形式的分布。

Integral wave loading analysis on truss-type offshore structure

A truss-type offshore structure, which consists of different circular cylinders with different diameters, member orientations and lengths, is taken as the research object, the wave forces on every single cylinder are first calculated one by one, and then they are superimposed to obtain wave loading on the integral structure. The hydrodynamic response of the structure under different wave environments with different wave heights, periods, directions is analyzed and the effect of different composition forms of the structure is investigated based on the proposed numerical method. The numerical results based on the proposed method can be used to evaluate integral extreme wave loading on the structures and observe the hydrodynamic behavior of the structure under the agitation of the wave loadings. Meanwhile the integral bending moments, shearing forces and wave loading distributions along certain structure forms on a truss-type offshore structure under the action of design wave can also be determined by the proposed method.