Shear buckling coefficients of plate girder web panels
Shear buckling coefficients of plate girder web panels
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DOI：
10.1016/0045-7949(95)00325-8
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发表时间：
1996-06
影响因子：
4.7
通讯作者：
S. C. Lee;J. Davidson;C. H. Yoo
中科院分区：
文献类型：
--
作者：
S. C. Lee;J. Davidson;C. H. Yoo
在板梁腹板的设计中，无论是否考虑屈曲后强度，都需要准确地计算剪切作用下的弹性屈曲强度。目前，由横向中间加劲肋加劲的腹板的弹性剪切屈曲系数是通过保守地假设腹板在翼缘和腹板之间的接合处简支来确定的。然而，根据板梁的几何形状和特性，弹性约束支座的行为可能更接近于夹紧支座。在本研究中，进行了一系列的数值分析的基础上的三维有限元建模的几何参数的边界条件的交界处的影响进行调查，并得到的数据量化在一个简单的设计方程。
In the design of plate girder web panels, it is required to evaluate accurately the elastic buckling strength under shear, whether or not the post-buckling strength is accounted for. Currently, elastic shear buckling coefficients of web panels stiffened by transverse intermediate stiffeners are determined by assuming conservatively that web panels are simply supported at the juncture between the flange and web. However, depending upon the geometry and the properties of the plate girder, the elastically restrained support may behave rather closer to a clamped support. In the present study, a series of numerical analyses based on a three-dimensional finite element modeling is carried out to investigate the effects of the geometric parameters on the boundary conditions at the juncture, and the resulting data are quantified in a simple design equation.