标题:
基于能量法单索面斜拉桥宽箱梁剪力滞效应分析Study on Shear Lag Effect of Wide Box Girder Based on Energy Method in Single-Cable-Plane Cable-Stayed Bridge
作者:
谭冬莲, 秦凤江
关键字:
单索面斜拉桥, 宽箱梁, 能量法, 剪力滞效应, 有限元Single-Cable-Plane Cable-Stayed Bridge, Wide Box Girder, Energy Method, Shear Lag
Effect, Finite Element
期刊名称:
《Hans Journal of Civil Engineering》, Vol.5 No.4, 2016-07-29
摘要:
本文对单索面斜拉桥在弯矩和轴力作用下箱梁剪力滞效应进行分析，以济南某黄河公路大桥为例，运用能量法得到恒载剪力滞计算公式，方便实用，理论计算结果与实体有限元模型计算结果吻合良好，结果显示单索面斜拉桥宽箱梁剪力滞效应比较大，设计时应予以高度重视。
Box beam shear lag effect of single-cable-plane cable-stayed bridge under bending moment and axial force is analyzed in this paper. Taking one Yellow River Bridge in Jinan as an example, the formula of shear lag under dead load has been set up using the Energy Variation Method. It is convenient and practical. The theoretical calculation results are in good agreement with those obtained in the solid finite element model. The results show that the shear lag effect of single-cable- plane cable-stayed bridge with wide box girder is bigger. It should be highly valued in the design.