文章详细信息 关键词： 曲箱梁桥;;剪滞效应;;曲率中心角;;剪滞系数 [gap=951]eywords: curved box girder bridge; shear lag effect; central angle of curvature; shear lag factor
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整体式桥台的等代桩长、桥台纵向抗弯刚度、宽跨比及箱梁肋板间距等，是影响该类桥梁剪滞系数的主要因素。
It is proved that the main affecting factors include: equivalent pile length, bending stiffness of abutment, ratio of width to span, distance of webs, etc.
以其解析式作为形函数，利用刚度系数的定义，推导了考虑剪滞影响的箱形梁单元刚度矩阵及等效结点力公式。
Stiffness matrix and equivalent nodal force formula, which take into account of the influence of shear lag, are derived subsequently on the basis of the definition of stiffness coefficient.
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