渡槽内流速对其结构静力响应的影响分析  

Analysis on Influence of Fluid Velocity on Static Force Responses of Aqueduct

作　　者：徐梦华[1] 莫海鸿[1] 

机构地区：[1]华南理工大学土木与交通学院,广州510640

出　　处：《长江科学院院报》2011年第3期59-62,共4页Journal of Changjiang River Scientific Research Institute

摘　　要：采用三维有限元模型,通过对比计算,研究了渡槽内流速对其横、竖向结构静力响应的影响。研究表明:流速对渡槽横向位移以及横向弯矩的静力响应虽然有比较明显的影响,且随着槽内流速的增大,影响也在加大,但是,在1.0～2.5 m/s的流速范围内,影响很小,不会产生危害;高流速对渡槽竖向位移以及竖向弯矩影响要比低流速大,但是,在1.0～2.5 m/s的范围内,对渡槽的竖向位移及竖向弯矩的影响也很有限。The influences of fluid velocity on lateral and vertical static force responses of aqueduct were studied by contrast calculation using three-dimensional finite element model.The results show that although the influence of fluid velocity on lateral displacement and moment of the aqueduct is evident and increases with fluid velocity,yet within a velocity range of 1.0-2.5 m/s the influence is limited.The influence of high fluid velocity on vertical displacement and moment is larger than that under low velocity.However,in a range of 1.0-2.5 m/s,the influence can be negligible.

关 键 词：渡槽 流速 静力 响应 

分 类 号：TV672.3[水利工程—水利水电工程] TV133TV311