Study on Calculation Method of Ultimate Strength of Torsional Moment of Composite Steel Box Girders

doi:10.3969/j.issn.1674-0696.2011.03.05

Journal of Chongqing Jiaotong University(Natural Science) ›› 2011, Vol. 30 ›› Issue (3): 369-371.DOI: 10.3969/j.issn.1674-0696.2011.03.05

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Study on Calculation Method of Ultimate Strength of Torsional Moment of Composite Steel Box Girders

ZHANG Chang-qing¹，AN Yong-ri¹，AN Li-peng²

1.Chongqing Communications Research ＆ Design Institute Co.,Ltd.,China Merchants Bureau,Chongqing 400067,China; 2.School of Civil Engineering ＆ Architecture,Chongqing Jiaotong University,Chongqing 400074,China

Received:2011-02-14 Revised:2011-03-20 Online:2011-06-15 Published:2015-03-12

组合结构箱梁扭转极限承载力计算方法研究

张长青¹，安永日¹，安里鹏²

1．招商局重庆交通科研设计院有限公司，重庆400067; 2．重庆交通大学土木建筑学院，重庆400074

作者简介:张长青(1971—)，男，重庆人，副研究员，工程硕士，主要从事桥梁设计方面的研究。E-mail:zhangchangqing@cmhk.com。

Abstract

Abstract: Theoretical analysis of the composite steel box girders subjected to torsional moment was proceeded.The relationship between reinforcement rate and concrete failure modes,reinforced bar yield failure modes was put forward.Meanwhile, the calculation method of ultimate strength of composite steel box girders was presented.The correctness of calculation method was verified by comparison with experimental results．

Key words: composite steel box girders, torsional moment, ultimate strength

摘要： 对受扭组合结构箱梁进行理论分析，提出了配筋率与混凝土破坏模态和钢筋屈服模态之间的相互关系。提出了组合结构箱梁的扭转极限承载力计算方法。通过与实验结果进行比较，验证了所提出计算方法的正确性。

关键词: 组合结构箱梁, 扭转, 极限承载力

CLC Number:

U448.21⁺6

ZHANG Chang-qing，AN Yong-ri，AN Li-peng. Study on Calculation Method of Ultimate Strength of Torsional Moment of Composite Steel Box Girders[J]. Journal of Chongqing Jiaotong University(Natural Science), 2011, 30(3): 369-371.

张长青，安永日，安里鹏. 组合结构箱梁扭转极限承载力计算方法研究[J]. 重庆交通大学学报（自然科学版）, 2011, 30(3): 369-371.

[1]	Zhao Lei, Peng Junsheng. Analysis of Torsional Moment to Oblique Separation Framed Tunnel Bridges by Finite Element Method of Plates and Beams [J]. Journal of Chongqing Jiaotong University(Natural Science), 1993, 12(3): 42-47.
[2]	Li Kaixi, Xu Wanming. The Correlation Equation of Two-End Deformational Additions of Steel Beam-Columns (II) [J]. Journal of Chongqing Jiaotong University(Natural Science), 1990, 9(3): 30-40.
[3]	Li Kaixi, Xu Wanming. A Study for the Ultimatn Strength of Fixed Steel Beam-Columns [J]. Journal of Chongqing Jiaotong University(Natural Science), 1990, 9(1): 1-9.

Study on Calculation Method of Ultimate Strength of Torsional Moment of Composite Steel Box Girders

组合结构箱梁扭转极限承载力计算方法研究

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