Research of Loop Pre-Stress Tension Test for Cable-Stayed Bridge Pylon Based on Full-Scale Sectional Model

Article Preview

Abstract:

Based on full-scale sectional model experiment for cable pylon anchorage zone of cable-stayed bridge, this research tested the friction factor and deviation factor of the duct. The reason that tension elongation of loop prestressing tendon exceeded the provision of ±6% in specification was analyzed systematically. A correctional calculation formula was proposed, with quantitative analysis for influencing factors of tension elongation. The formula shows good applicability in practical engineering and has reference value for similar loop prestressing tendon.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1141-1146

Citation:

Online since:

January 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Chang Guo-qiang, Wu Bo, Liu Kang and Zhang Feng: Discussion on Non-uniformity of U-looped Prestressing Tendons Elongation at Tower Anchorage Zone. Journal of Chongqing Jiaotong University(Natural Science), 2009, 28(5): 826-829.

Google Scholar

[2] Zhang Wang-xi, Yi Wei-jian, Chen Jian-yang: Experimental analysis of extension of the ring prestressed steel bundle with great tonnage in the concrete tower of cable-stayed bridge. China Journal of Highway and Transport, 2002, 15(3): 57-60.

Google Scholar

[3] JTG/T F50-2011, Technical Specification for Construction of Highway bridge and Culvert, (2011).

Google Scholar

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

Google Scholar

[5] Shan Wei, Li Yushun, Yu Ling and Nie Yudong: Experimental research on full-scale model for anchorage zone of pylon of cable-stayed bridge with illegal-shaped section. China Journal of Highway and Transport, 2005, 18(3).

DOI: 10.4028/scientific5/amr.446-449.1148

Google Scholar

[6] Tang Hong-yuan: Study on Key Problems of Cable-Stayed Bridge PC Pylon. Nanjing, School of Civil Engineering, Southeast University, (2006).

Google Scholar