自升式综合平台的外载计算

CALCULATION OF EXTERNAL LOADS ON A MAT TYPE JACK-UP PRODUCTION/STORAGE PLATFORM

本文给出了自升式综合平台的外载估算方法。对大尺度物体的波浪载荷用三种方法进行了计算,在计算中考虑了非线性波的影响和局部修正。本文在给定的设计波参数和海况条件下,对南海北部湾和渤海地区的自升式综合平台(方案)进行了风、浪、流外载计算。计算结果用于平台结构强度、疲劳、稳定性分析和沉块的优化设计。

A method wliich can predict external loads on a mat type jack-up production/ storage platform is presented in this paper. Wave forces on large bodies flre calculated by three methods. The nonlinear wave effect and some improvement are considered in computation. The wave loading, current forces and wind forces on jack-up platform with/without mat are calculated under the environmental and design wave conditions in the Beibu Bay of the South China Sea and the Bohai Sea. The numerical results are used for structural analysis, anit-slide analysis of platform and optimizing mat design.