Research on the Mechanism of Prestressed Loss for Curving Hole of Prestressed Concrete Structure Caused by Frictional Resistance

Author:

Zhang Shan1,Zhang Kai Yin1,Xie Bing Yang1,Fan Zhong Lin2

Affiliation:

1. Wuhan University of Technology

2. Shiyan Highway Administration Bureau

Abstract

Excessive prestress loss in Prestressed Concrete (PC for short) continuous beam bridges and continuous rigid frame bridges cause structures to be different types of diseases. Based on theoretical analysis and experiment , this paper points out the imperfection of the effective prestress formula in Curving Hole at present. According to the research on the influencing factor of prestressed loss in Curving Hole of friction coefficient, it plays a remarkable role on the analysis about the prestressed loss in Curving Hole of prestressed concrete structure.

Publisher

Trans Tech Publications, Ltd.

Reference9 articles.

1. Baolin Ma. Continuous Rigid Frame Bridge with Long-span and High-pier[M]. Beijing, China communications Press. (in Chinese).

2. Jianhui Zhan, Fen Chen. Sag and Cracks in Box Girder of Long-Span Continuous Rigid Frame Bridge[J]. Journal of China & Foreign Highway, 2005, (01): 56-58. (in Chinese).

3. Yufeng Chen, Julan Xu, Wujun Yu. Causes and Precautionary Measures to Long-term Deflection of Long Span Pre-stressed Concrete Box Girder of Continuous Rigid Frame Bridge[J]. Journal of Chongqing Jiaotong University(Natural Science, 2007(08). (in Chinese).

4. Code for Design of Highway Reinforced Concrete and Prestressed Concret Bridges and Culverts(JTG D62-2004)[M]. (in Chinese).

5. Guoping Li. Prestressed Concrete Structure Design Principle. [M]. Beijing, China communications Press. (in Chinese).

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