The Characteristic of Prestressed Concrete Pier Seismic Crack

Abstract:

Through three dimensional finite element analyzes, overall cast-in-place prestressed concrete pier seismic crack characteristic is researched. The separation formula finite element model is established by means of bilinear reinforce model and Kent-R.Park concretes model, without considering slip between concretes and. reinforce. It compares and analyzes the seismic crack characteristic between prestressed concrete pier and reinforcement concretes pier. The results show that the prestressed reinforcement can reduce the tensile zone of concrete, put off the appearance of cracks, improved the stiffness of pier, and reduced the top displacement.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 1628-1632
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.1628
• Online since: January 2014
• Authors: Hui Li Wang*, Hong Wang, Si Feng Qin
• Keywords: Crack, Piers, Prestressed Concrete, Seismic Response

References

[1] David G Hiber  JMWFRR. Precast Concrete Pier Systems for Rapid Construction of Bridges in Seismic Regions. Washington: University of Washington . （2005）.

[2] Zatar W A  MH. Reduced Residual Displacements of Partially Prestressed Concrete Bridge Piers[C]. 2th World Conference on Earthquake Engineering. New Zealand Society of Earthquake. Auckland( 2000).

[3] Kwan WP, Billington S. Unbonded Posttensioned Concrete Bridge Piers. Ⅱ: Seismic Analyzes[J]. Journal of Bridge Engineering, ASCE. Vlo. 8(2) (2003), pp.102-111.

DOI: 10.1061/(asce)1084-0702(2003)8:2(102)

[4] WANG Z Q, GE J P, WEI H Y. Seismic Performance of Prestressed Concrete Bridge Column of East Sea Bridge[J]. Journal of Tongji University (Natural Science) Vol. 36(11) (2008)pp.1462-1500.

[5] BU Zhanyu, TANG Guangwu. Seismic Performance Investigation of Unbonded Prestressing Precast segmental Bridge Piers with Energy Dissipation Bar[J]. ChinaRailway Science. Vol. 32(3). (2011).

[6] SI Bing-jun, SUN Zhi-guo, AI Qing-hua, WANG Dong-sheng. Sensitive Analysis and Model Modification for Finite Element Analysis of R/C Bridge Piers Under Cyclic Loading[J]. Engineering Mechanics. Vol. 26(1). (2009).

[7] Wang Huili, Qin Si-Feng, Zhang Zhe. Study on The Effect of Prestressed Degree on Seismic Performance of Prestressed Concrete Pier. Journal of Wuhan University Of Technology (Transportation Science &Engineering). Vol. 37(1): 27-29. (2013).

[8] Qin Sifeng Static Nonlinear Analysis Methods for Estimating Seismic Performances for Bridges[D]. Dalian: Dalian University of Technology(2008).