复杂风-浪-流环境下海洋牧场交通栈道施工阶段钢管桩受力行为研究  

The Force Behavior of Steel Pipe Piles in the Construction Stage of Marine Ranching Traffic Trestle Under Complex Wind-Wave-Current Environment

作　　者：周国涛 张成明 侯总 聂瑞锋 ZHOU Guotao;ZHANG Chengming;HOU Zong;NIE Ruifeng(Shandong Highway and Bridge Construction Group Co.,Ltd.,Jinan 250000,China;Shandong Luqiao Group Co.,Ltd.,Jinan 250000,China;College of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东省公路桥梁建设集团有限公司,济南250000 [2]山东省路桥集团有限公司,济南250000 [3]山东科技大学土木工程与建筑学院,山东青岛266590

出　　处：《鲁东大学学报(自然科学版)》2025年第1期9-18,共10页Journal of Ludong University:Natural Science Edition

基　　金：山东省自然科学基金(ZR2020ME241)。

摘　　要：为明确复杂海洋环境下钢管桩的受力行为,借助于有限元数值模拟,采用流固耦合的方法,进行施工阶段钢管桩在风-浪-流耦合作用下的受力行为研究,总结得到不同参数下钢管桩的动力响应规律。首先,借助有限元软件ANSYS Workbench的Fluent模块,通过加载UDF程序进行二次开发,对数值模型进行了速度入口、压力出口、入口体积和出口体积等边界条件的设置,实现风-浪-流耦合环境场的构造;其次,基于风-浪-流耦合数值环境场,对单向和双向流固耦合作用下风-浪-流耦合环境与钢管桩的动力响应结果进行了对照分析,结果表明双向流固耦合方法更符合实际海洋环境下钢管桩受力状态;最后,对施工阶段钢管桩进行动力响应研究,分析了桩径、斜度、长度、截面形状、水深、环境等参数影响下钢管桩动力响应规律,并对钢管桩周围流体域进行分析,得到不同斜度钢管桩周围流体域运动规律。In order to ascertain the force behavior of steel pipe piles under complex marine environment,the finite element numerical simulation and fluid-structure coupling method were used to research the force behavior of steel pipe piles under wind-wave-current coupling during construction stage,and the dynamic response rules of steel pipe piles under different parameters were summarized.Firstly,by using the Fluent module of finite element software ANSYS Workbench,the UDF program was loaded for secondary development,and boundary conditions such as velocity inlet,pressure outlet,inlet volume and outlet volume were set for the numerical model to realize the construction of wind-wave-current coupled numerical environmental field.Secondly,based on the numerical environment field of wind-wave-current coupling,the results of dynamic response of steel pipe piles in wind-wave-flow coupling environment under unidirectional and bidirectional fluid-structure coupling were compared,which show that the bidirectional fluid-structure coupling method is more consistent with the actual force state of steel pipe piles in marine environment.Finally,the dynamic response of steel pipe piles during the construction stage was researched,and the dynamic response rules of steel pipe piles under the influence of piles diameter,slope,length,section shape,water depth,environment and other parameters were analyzed,and the fluid domain around steel pipe piles was analyzed,and the movement rule of fluid domain around steel pipe piles with different slope was obtained.

关 键 词：风-浪-流耦合 海洋牧场 钢管桩 动力响应 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]