连续箱梁桥偏载系数三维有限元分析及工程应用

该文对利用三维实体单元建立连续箱梁全桥模型求取偏载系数进行了研究,并将实体单元结果,与薄壁杆扭转理论、修正偏压法、偏压法、经验系数法进行了对比分析。结合工程实例,进一步介绍了利用三维实体单元计算连续箱梁偏载系数的方法。

Three-dimensional Finite Element Analysis and Engineering Application of Eccentric Load Coefficient in Continuous Box Girder Bridge

The article studies the continuous box girder bridge model set up by three-dimensional solid unit to seek the eccentric coefficient,and compares and analyzes the solid unit result with the thin-wall rod torsional theory,amendment bias method,bias method and experience coefficient method.Combined with the engineering case,the article further introduces the method to use three-dimensional solid unit to calculate the eccentric coefficient of continuous box girder.