【摘要】 通过自由扭转理论推导出复杂薄壁箱梁断面的自由扭转惯性矩的计算方法;采用实际复杂薄壁箱梁断面进行了数值验证,并和使用有限元方法计算的结果进行了比较.结果表明,这是一种简单实用且精度较高的计算方法.更多还原

【Abstract】 An analytical method is proposed for calculating free torsion constant of complicated thinwalled cross section from free torsion theory.A complicated thin-walled box girder is taken as a validity numerical example to verify the analytical method.Comparing with the finite dement results,this method has quite accuracy to simply calculate free torsion constant.更多还原