Prediction of ultimate stress in unbonded tendon for post-tensioned concrete beams

机译：后张预应力混凝土梁无粘结筋的极限应力预测

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This paper presents an equation for the prediction of the ultimate stress in the tendon in posttensionedrnconcrete beams.The equation is derived from an analytical model that assumes the girder and unbondedrnpost-tensioned tendon (internally or externally) are linked at the holding point by a rigid link. Results arerncompared to experimental data from 25 test beams as well as available test data available in the literature. Resultsrnindicate that, in comparison with the ACI 318-08 equation, the presented equation is versatile, rational, andrnaccurate in predicting the tendon stress at ultimate for beams with various combinations of tendons and types ofrnmaterials.

机译：本文提出了一个预测后张预应力混凝土梁中钢筋极限应力的方程式，该方程式是从一个分析模型推导出的，该模型假设梁和未粘结的后张预应力筋（内部或外部）在保持点处通过刚性连接链接。将结果与来自25个测试光束的实验数据以及文献中提供的可用测试数据进行比较。结果表明，与ACI 318-08方程相比，所提出的方程在预测具有多种腱和材料类型组合的梁的极限应力时具有通用性，合理性和准确性。

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来源
《International conference on structural engineering, mechanics and computation;SEMC 2010》|2010年|p.811-814|共4页
会议地点 Cape Town(ZA);Cape Town(ZA)
作者
H.H. Nassif; O. Ozkul; F.A. Malhas;
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Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA;

Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA;

West Virginia University – Institute of Technology, Montgomery,West Virginia, USA;

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正文语种 eng
中图分类建筑结构;
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专利

1. Response of post-tensioned concrete beams with unbonded tendons including serviceability and ultimate state [J] . N.A. Vu, A. Castel, R. Francois Engineering Structures . 2010,第2期

机译：后张预应力混凝土梁与未粘结筋的响应，包括使用寿命和极限状态
2. Ultimate tendon stress of strengthened and non-strengthened unbonded post-tensioned I-beams [J] . Maghsoudi Mohammad, Maghsoudi Ali Akbar Proceedings of the Institution of Civil Engineers . 2018,第SB12期

机译：加强和非加强无粘结后张工字梁的最终腱应力
3. Stress at ultimate in unbonded tendons for ungrouted post-tensioned masonry beams [J] . Garcia John M., Bonett Ricardo L., Schultz Arturo E., Engineering Structures . 2017,第JUNa1期

机译：未注浆后张拉的砌体梁在无粘结筋的最终应力
4. Prediction of ultimate stress in unbonded tendon for post-tensioned concrete beams [C] . H.H. Nassif, O. Ozkul, F.A. Malhas International conference on structural engineering, mechanics and computation . 2010

机译：张紧混凝土梁未粘结肌腱上最终应力的预测
5. Truss model for predicting tendon stress at ultimate in unbonded partially prestressed concrete beams. [D] . Gilliland, James Andrew. 1994

机译：桁架模型，用于预测无粘结部分预应力混凝土梁最终的腱应力。
6. Numerical Study of Using FRP and Steel Rebars in Simply Supported Prestressed Concrete Beams with External FRP Tendons [O] . Miao Pang, Zhangxiang Li, Tiejiong Lou 2020

机译：使用外部FRP肌腱的简单支持预应力混凝土梁使用FRP和钢钢筋的数值研究
7. EVALUATION OF ULTIMATE STRENGTH AND ROTATION ANGLE FOR UNBONDED POST-TENSIONED PRECAST CONCRETE BEAMS BY USING SECTION ANALYSIS [O] . Makoto MATSUMORA, Takeaki KOSHIKAWA, Masaru KIKUCHI 2014

机译：用截面分析评估未粘附后张紧的预制混凝土梁的极限强度和旋转角度
8. Ultimate Load Carrying Capacity of Unbonded Prestressed Reinforced Concrete Beams [R] . Ganwei, C., Nielsen, M. P., Janos, K. 1990

机译：无粘结预应力钢筋混凝土梁的极限承载力

Prediction of ultimate stress in unbonded tendon for post-tensioned concrete beams

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