薄壁空心墩盖梁的建模计算与最不利内力的选取研究

  

(西安公路研究院,陕西 西安710065

  要:通过建模对不同宽度薄壁空心墩盖梁内力进行了仿真分析,对比了盖梁纵向L/2L/3截面及横向L/2截面弯矩及剪力分布,对薄壁空心墩盖梁配筋计算时控制截面的选取提出了建议,可为今后的薄壁空心墩盖梁设计提供参考。

关键词:薄壁空心墩盖梁;横向移动荷载;等效荷载;弯矩;剪力

中图分类号:U442        文献标识码:A

 

Study on the Selection of the Most Unfavorable Internal Force and

Modeling Calculation of Thin walled Pier Bent Cap

WANG Xu

(Xi’an Highway Research Institute, Xi’an 710065,China)

Abstract:The modeling and simulation analysis of longitudinal internal force was carried out for different width of thinwalled hollow pier beam, L/2, L/3 section and L/2 section of transverse bending moment and shear distribution was compared, and proposed for the selection control section of the calculation of the beam of thin walled hollow pier reinforcement, which could provide reference for the future design of the thin wall hollow pier.

key words: bent cap of a thin wall pier; horizontal moving load; the equivalent load; bending moment; shear