溇水大桥墩柱冲刷的流-固耦合分析  

Fluid-Structure Interaction Simulation on Pile Scouring of Loushui Bridge

作　　者：伍琼芳[1] 颜艳芬 蒋国俊[1] 杨建明[1] 肖逸[1] 

机构地区：[1]南华大学城市建设学院,湖南衡阳421001 [2]湖南省新溆高速公路建设开发有限公司,湖南新化417600

出　　处：《公路工程》2016年第2期240-244,250,共6页Highway Engineering

摘　　要：根据常张高速溇水大桥墩柱的水工环境,对溇水大桥受流水冲刷影响较为严重的墩柱进行流-固耦合分析。墩身应力计算分布结果反应了墩身受冲刷影响的大小。研究表明墩柱系中各墩受冲刷作用力因各墩位置而异,墩身受到的动水压强和墩周流场情况共同决定墩身所受的冲刷程度。According to the hydraulic environment of Loushui bridge foundation,modeling and FSI simulation to the pile column which scoured more seriously by the flowing water. The stress distribution results reflects it＇s scouring situation. Studies have shown that the degree of influence depends on these piles＇ position,and believed piles＇ scouring degree is co-decided by both the dynamic water pressure and water flows field around piles.

关 键 词：冲刷关系 流场 流-固耦合分析 动水压强 混凝土损伤塑性模型 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]