摘要
本文根据预应力箱梁复合受力作用下抗扭作用的特性，以修正斜压场理论和薄壁管理论为基础，提出了适用于预应力混凝土箱梁，在弯剪扭共同作用下的抗扭极限承载力计算的理论模型。所建立的计算公式不仅理论基础强、概念清晰、简洁易行。
In this paper,on the basis of the modified compression field theory and the thin walled tube theory,a theoretical model for ultimate torsional strength of prestressed concrete boxbeams under combined bending,shear and torsion is introduced.Calculating formulas are derived on sound theoretical basis,having a clear concept and being easy to apply.Calculated results are compared with the experimental results of thirty six prestressed concrete box beams.The comparison shows good consistency.
出处
《内蒙古工业大学学报（自然科学版）》
1999年第1期4-8,共5页
Journal of Inner Mongolia University of Technology：Natural Science Edition
基金
国家自然科学基金
关键词
预应力混凝土
抗扭强度
箱梁
计算
Prestressed concrete
torsional strength
softening concrete
box beams
