华南理工大学学报(自然科学版) ›› 2009, Vol. 37 ›› Issue (11): 1-6.

• 交通与运输工程 •    下一篇

桁架式近海结构物整体波浪荷载分析

吴家鸣 郁苗 朱良生   

  1. 华南理工大学 土木与交通学院, 广东 广州 510640
  • 收稿日期:2008-11-24 修回日期:2009-02-01 出版日期:2009-11-25 发布日期:2009-11-25
  • 通信作者: 吴家鸣(1957-),男,教授,博士,主要从事船舶与海洋工程水动力学研究. E-mail:ctjmwu@scut.edu.cn
  • 作者简介:吴家鸣(1957-),男,教授,博士,主要从事船舶与海洋工程水动力学研究.
  • 基金资助:

    国家自然科学基金资助项目(10772068)


Analysis of Integral Wave Load Acting on Truss-Type Offshore Structure

Wu Jia-ming  Yu Miao  Zhu Liang-sheng   

  1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2008-11-24 Revised:2009-02-01 Online:2009-11-25 Published:2009-11-25
  • Contact: 吴家鸣(1957-),男,教授,博士,主要从事船舶与海洋工程水动力学研究. E-mail:ctjmwu@scut.edu.cn
  • About author:吴家鸣(1957-),男,教授,博士,主要从事船舶与海洋工程水动力学研究.
  • Supported by:

    国家自然科学基金资助项目(10772068)

摘要: 计算与分析近海结构物的整体波浪荷载是结构物设计阶段的一个重要环节.文中以由不同直径、方向和长度的圆柱形水下杆件构成的桁架式近海结构物为对象,首先根据Morison方程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荷载.数值分析结果表明:结构物对波浪的整体响应程度主要取决于结构物的几何尺度与波浪环境参数(波高、周期、浪向等)的相对关系.

关键词: 波浪荷载, 桁架式结构, 近海, 动力响应, 导管架平台

Abstract:

:The calculation and analysis of the integral wave load acting on offshore structures is an important step in the design Of the structures. In this paper, a truss-type offshore structure, which consists of cylindrical underwater members with different diameters, orientations and lengths, is taken as the research object, and the wave forces acting on the cylinders are calculated one by one based on the Morison equation and then superimposed to obtain a comprehensive wave load acting on the integral structure. Numerical results show that the integral response of the structure to waves depends mainly on the relative relations between structure dimension and such wave environment parameters as wave height, period and wave direction.

Key words: wave load, truss-type structure, offshore, dynamic response, jacket platform