波浪上托力作用下高桩码头结构的动力分析  

Dynamic analysis of high-pile wharf under wave uplift force

作　　者：卢生军[1] 陈国平[2] 

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230 [2]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《水运工程》2013年第12期52-56,共5页Port & Waterway Engineering

摘　　要：通过有限元计算软件ANSYS,对波浪上托力作用下高桩码头结构进行动力分析。研究结果表明:波浪缓变压强作用下,采用动力计算和采用静力计算得到的码头结构各处的内力基本相同,波浪缓变压强可等效为静力来计算码头结构内力;波浪冲击压强作用下,采用动力计算得到的码头结构内力明显小于静力计算结果,波浪冲击压作用下的高桩码头结构宜进行动力分析;由于波浪上托力频率与码头结构自振频率相差甚远,因此其作用下的高桩码头结构不会产生共振现象。The dynamic analysis of high-pile wharf under the wave uplift force action is carried out by finite element software ANSYS. The results show that the internal force of dynamic and static calculation in all parts of the wharf structure is basically the same under the action of wave slowly varying pressure, so we can calculate the internal force through static analysis; but the internal force of dynamic calculation is much smaller than that of the static calculation under the action of wave impact pressure, therefore the dynamic analysis may be used to consider the interaction between wave impact pressure and high-pile wharf; High-pile wharf does not produce resonance phenomenon under the wave uplift force action because of the huge difference between wave uplift force frequency and structure natural frequency.

关 键 词：波浪上托力 高桩码头 动力分析 

分 类 号：O353.4[理学—流体力学] U656.113[理学—力学]