Stress Non-Uniformity Simulation Analysis of Prestressed Steel Strands in Curved Duct

Hai Qian Cheng; Wei Zong; Kai Hu; Wen Tian

doi:10.4028/www.scientific.net/AMR.1120-1121.1453

Paper Titles

A Computer-Aided-Design (CAD) System for Four-Step Three-Dimensional Braiding
p.1429

Using Simulated Data to Support the Calibration Process of ED-XRF Analysis
p.1435

Method of Lines to Solve the Linear Temperature Field of LENS
p.1441

The Preparation of a Kind of Interface Treatment Agent for Concrete
p.1449

Stress Non-Uniformity Simulation Analysis of Prestressed Steel Strands in Curved Duct
p.1453

Comparison of Various Techniques for Flexural Strengthening of Thin Concrete Members Using Continuous Carbon Fibers
p.1458

Studies of High Temperature Performance of Asphalt Based on Repeated Creep and Recovery Test
p.1463

Spall Strength of Steel Fiber Reinforced Concretes
p.1468

Numerical Test Research on High-Strength Concrete Square Columns with High-Strength Aseismic Transverse Reinforcement under Concentric Compression
p.1475

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1120-1121Stress Non-Uniformity Simulation Analysis of...

Stress Non-Uniformity Simulation Analysis of Prestressed Steel Strands in Curved Duct

Abstract:

In view of the phenomenon that the curved duct in anchorage zone of cable-stayed bridges result in non-uniformity of each of steel strand, we analyzed the position change law of the prestressed steel strand in curved duct. Simulating real bridge design, a simple method was proposed to compute non-uniformity level of prestressed steel strand in the process of tensioning. Results showed that the rearrangement caused the additional length difference result in stress non-uniformity of each steel strand. Because each of steel strand cannot participate in force at the same time, the actual elongation value of the tendon is greater than theoretical value.

You might also be interested in these eBooks

Contemporary Approaches in Material Science and Materials Processing Technologies

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 1120-1121)

Pages:

1453-1457

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.1453

Citation:

Cite this paper

Online since:

July 2015

Authors:

Hai Qian Cheng*, Wei Zong, Kai Hu, Wen Tian

Keywords:

Anchorage Zone, Elongation, Non-Uniformity, Rearrangement, U-Type Prestressed Tendons

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] CHENG Hai-qian. Research on Contact Stress, Pre-stressed Frictional Loss and Elongation in PC Bending Duct [D]. Wuhan: Wuhan University of Technology, (2011).

Google Scholar

[2] CHANG Guo-qiang, WU Bo, LIU Kang, et al. Discussion on Non-uniformity of U-looped Prestressing Tendons Elongation at Tower Anchorage Zone [J]. Journal of Chongqing Jiaotong University : Natural Science Edition, 2009, 28 (5): 826 -829.

Google Scholar

[3] LIU Zhao, MENG Shao-ping, LIU Zhi. Full Scale Model Test for Pylon Segment of the Cable-stayed Bridge of Runyang Yangtze River Bridge [J]. China Civil Engineering Journal, 2004 , 37 ( 6): 35 - 40.

Google Scholar

[4] ZHANG Wang-xi, YI Wei-jian, CHEN Jian-yang. Experimental Analysis of the Extension of the Ring Prestressed Steel Bundle with Great Tonnage in the Concrete Tower of Cable-stayed Bridge [ J ]. China Journal of Highway and Transport, 2002, 15 ( 3 ) : 57-60.

Google Scholar

[5] TAO Qi-yu, LI Yong-le, HUANG Dao-quan, et al. Study on Theoretical Elongation of Small Radius Prestressing Tendons in Anchorage Zone of Cable-stayed Bridge Pylon[J]. Journal of Highway and Transportation Research and Development, 2009, 26 (7): 64-68.

Google Scholar