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预应力体外束应力计算方法的比较研究

, PP. 46-50

Keywords: 预应力体外束,FRP(纤维增强塑料),二次效应

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Abstract:

本文运用现有的3个计算无粘结预应力钢束的极限应力公式,基于3组体外预应力钢束梁和FRP束梁的实验数据,比较和分析了各种材料体外束的应力增量、极限应力和梁抗弯强度计算值与实验值的偏差,指出了现有公式用于体外束应力计算的局限性,以及转向块与端锚间的特殊2次效应对体外束梁破坏形态和束内应力增量的影响。

References

[1]  EL-Hacha R, Elbadry M.Strengthening Concret e Beams with Externally Prestressed Carbon Fiber Composite Cables [C].London FRPRCS-5,Thomas Telford, 2001 :699 -708.
[2]  Debernardi P G, Taliano M.On Evaluation of Rotation Capacity for Reinforced Concrete Beams [J].ACI Structural Journal, 2002, 99 (3):360 -368.
[3]  Naaman A E, Alkhairi F M.Stress at Ultimate in Unbonded Post-Tensioning Tendons:Part2-ProposedMethodology [J].ACI St ructural Journal, 1991, 88 (6):683-692.
[4]  Harajli M H, Hijazi S A.Evaluation of the Ultimate Steel Stress in Part ially Prestressed Concret e Members [J].PCI Journal, 1991, 36 (1):62 -82.
[5]  Mut suyoshi H, etc.Flexural Behavior and Proposal of Design Equation for Flexural Strength of Externally Prestressed Concrete Members [J].Concrete Library of JSCE, No.28:65 -77.
[6]  Tsuchida K, Mutsuyoshi H.Researches on Flexural Characteristi cs of Prestressing Beamswith External Cables [J].JCl 1994, 16 (2):1009-1014.
[7]  Mutsuyoshi H, Machida A.Behavior of Prestressed Concrete Beams Using FRP as External Cable [J].ACI SP -138 -25, 1993:401 -417.

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