| 预应力混凝土箱梁抗扭强度理论计算方法 |
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| 引用本文： | 徐艳秋 王岚. 预应力混凝土箱梁抗扭强度理论计算方法[J]. 内蒙古工业大学学报, 1999, 18(1): 4-8 |
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| 作者姓名： | 徐艳秋 王岚 |
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| 作者单位： | 北方交通大学，内蒙古工业大学 |
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| 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。
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| 关 键 词： | 预应力混凝土 抗扭强度 箱梁 计算 |
A THEORETICAL CALCULATION METHOD FOR ULTIMATE TORSIONAL STRENGTH OF PRESTRESSED CONCRETE BOX BEAMS |
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| XU Yan qiu ,XU Ke bin ,WANG Lan. A THEORETICAL CALCULATION METHOD FOR ULTIMATE TORSIONAL STRENGTH OF PRESTRESSED CONCRETE BOX BEAMS[J]. Journal of Inner Mongolia Polytechnic University(Social Sciences Edition), 1999, 18(1): 4-8 |
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| Authors: | XU Yan qiu XU Ke bin WANG Lan |
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| Affiliation: | XU Yan qiu 1,XU Ke bin 1,WANG Lan 2 |
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| Abstract: | 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. |
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| Keywords: | Prestressed concrete torsional strength softening concrete box beams |
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