波浪与地震对小尺度桩柱的共同作用研究
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摘要
本文以某一实际平台桩柱为例,对其进行波浪作用以及波浪与地震共同作用研究。依据我国海港水文规范JTJ213-98、DNV的环境条件和环境荷载规范以及API的相关规范[1-3],对波浪荷载的计算采取不同的简化处理方式,从而分析流体的附加质量效应和流固耦合效应在不同工况下对桩柱结构响应的影响,并分析了该影响随工作水深和波浪参数的变化规律。结果表明,两种工况下流体的附加质量效应和流固耦合效应对桩柱响应的影响趋势并不相同,当进行波浪与地震共同作用分析时,有必要考虑流体附加质量效应和流固耦合效应对结构响应的影响。
In this study,the dynamic responses of the piles with small dimension under the combination of seismic and wave action are investigated.According to the codes of Harbour hydrology(JTJ213-98) and environmental conditions and environmental loads(SY/T10050-2004),and other relative codes,different simplified expressions are adopted to calculate the wave loads and the effect of added mass of sea water and the coupling effect of fluid and structure on the pile responses with different working depths and variable wave parameters.Results show that the effects of added mass of sea water and fluid-structure coupling on the pile responses are different under different working conditions.Considering both effects in the analysis of ocean structure consisting the piles with small dimension under the combination of seismic and wave action is necessary.
In this study,the dynamic responses of the piles with small dimension under the combination of seismic and wave action are investigated.According to the codes of Harbour hydrology(JTJ213-98) and environmental conditions and environmental loads(SY/T10050-2004),and other relative codes,different simplified expressions are adopted to calculate the wave loads and the effect of added mass of sea water and the coupling effect of fluid and structure on the pile responses with different working depths and variable wave parameters.Results show that the effects of added mass of sea water and fluid-structure coupling on the pile responses are different under different working conditions.Considering both effects in the analysis of ocean structure consisting the piles with small dimension under the combination of seismic and wave action is necessary.
引文
[1]JTJ213-98,海港水文规范[S].
[2]SY/T10050-2004,环境条件与环境荷载规范[S].
[3]SY/T10030-2004,海上固定平台规划、设计和建造的推荐作法工作应力设计法[S].
[4]Li HN,Ma B C.Seismic response reduction for fixed offshore platformby tuned Liquid damper[J].China Ocean Engineering,1997,11(2):119-125.
[5]Li HN,He X Y,Huo LS.Seismic response control of offshore platform structrues with shape memory alloy dampers[J].China Ocean Engineer-ing,2005,19(2):185-194.
[6]曲乃泗.水中空间结构对随机地震的反应[J].地震工程与工程振动,1986,6(1):61-71.
[7]贾影,李宏男,宋岩升.TLD对海洋平台地震反应控制的简化计算方法[J].地震工程与工程振动,2002,22(3):160-164.
[8]张学志,黄维平,李华军.考虑流固耦合时的海洋平台结构非线性动力分析[J].中国海洋大学学报,2005,35(5):823-826.
[9]竺艳蓉.海洋工程波浪力学[M].天津:天津大学出版社,1991.42-48.
[10]朱伯芳.有限单元法原理与应用[M].北京:中国水利水电出版社,1998.27-31.
[11]赵更新.土木工程结构分析程序设计[M].北京:中国水利水电出版社,2002.187-188.
[12]港口建筑物设计标准,日本港湾协会.[M].北京:人民交通出版社,1979.72-74.
[13]王涛,尹宝树,陈兆林.海洋工程[M].济南:山东教育出版社,2004.66-68.
[2]SY/T10050-2004,环境条件与环境荷载规范[S].
[3]SY/T10030-2004,海上固定平台规划、设计和建造的推荐作法工作应力设计法[S].
[4]Li HN,Ma B C.Seismic response reduction for fixed offshore platformby tuned Liquid damper[J].China Ocean Engineering,1997,11(2):119-125.
[5]Li HN,He X Y,Huo LS.Seismic response control of offshore platform structrues with shape memory alloy dampers[J].China Ocean Engineer-ing,2005,19(2):185-194.
[6]曲乃泗.水中空间结构对随机地震的反应[J].地震工程与工程振动,1986,6(1):61-71.
[7]贾影,李宏男,宋岩升.TLD对海洋平台地震反应控制的简化计算方法[J].地震工程与工程振动,2002,22(3):160-164.
[8]张学志,黄维平,李华军.考虑流固耦合时的海洋平台结构非线性动力分析[J].中国海洋大学学报,2005,35(5):823-826.
[9]竺艳蓉.海洋工程波浪力学[M].天津:天津大学出版社,1991.42-48.
[10]朱伯芳.有限单元法原理与应用[M].北京:中国水利水电出版社,1998.27-31.
[11]赵更新.土木工程结构分析程序设计[M].北京:中国水利水电出版社,2002.187-188.
[12]港口建筑物设计标准,日本港湾协会.[M].北京:人民交通出版社,1979.72-74.
[13]王涛,尹宝树,陈兆林.海洋工程[M].济南:山东教育出版社,2004.66-68.
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