摘要
根据双索面斜拉桥的受力特点,基于最小势能原理和叠加原理,导出槽型宽翼主梁考虑剪滞效应和剪切变形双重影响的平衡控制微分方程和边界条件,在初参数解的基础上建立了相应的场矩阵和点矩阵,提出一种分析槽型宽翼主梁斜拉桥剪力滞效应的传递矩阵法.计算示例表明,提出的分析方法是合理有效的.
Based on the principles of residual energy and superposition, the governing differential equations, boundary conditions and the initial-value solutions for calculation of shear lag effect in wide-flange beam under axial loading only as well as under bending loading are respectively established. The field matrix and point matrix are derived, and the inner force, stress and displacement can be recursively calculated. A transfer matrix method for shear lag analysis of cable-stayed bridge with double cable plane and wide-flange beam is put forward. The feasibility of the theoretical method presented is demonstrated by comparing the calculated values with the results of model experiment and finite strip method.
出处
《湖南理工学院学报（自然科学版）》
CAS
2009年第2期73-77,共5页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
基金
交通部交通应用基础项目(2005319825040)
湖南省教育厅项目(03B005
08C391)
湖南理工学院科研项目(2008Y34)
关键词
双索面槽型宽翼主梁斜拉桥
剪力滞效应
传递矩阵法
最小势能原理
叠加原理
double cable plane and wide-flange beam cable-stayed bridges
shear lag effect
transfer matrix method
minimum potential energy principle
principle of superposition
