双室连续箱梁剪力滞效应参数研究  

Analysis of Shear Lag Effect of Single Box and Twin-cell Continuous Box Girder

作　　者：毛旭光[1] 黄永庭[1] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《福建建材》2012年第2期15-16,21,共3页Fujian Building Materials

摘　　要：应用变分法中的最小势能原理推导出梯形截面箱梁剪力滞效应的控制微分方程,分析了影响剪力滞效应的主要影响因素,即箱梁截面几何参数如:宽跨比、宽高比。运用ANSYS程序中的SHELL63单元,分析了单箱双室三跨连续箱梁剪滞效应分布规律。Based on energy variational principal, the governing differential equations of the shear lag effect is deducted in the application of the minimum potential energy theory,and analyze the various parameters of shear lag effect to identify the main factors, such as the width-span ratio,the height to span rato. The SHELL63 unit of ANSYS program was used to analyze the distributions of shear lag effect for single box twin-cell three-span continuous box girder.

关 键 词：剪力滞效应 有限元法 连续箱梁 参数研究 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]