Research Article | OPEN ACCESS
Ultimate Flexural Capacity of Unbounded Prestressed Concrete Pier
1, 2Wang Hui-li, 2Zhang Lin and 3Qin Si-Feng
1State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, P.R. China
2Bridge Science Research Institute, Dalian University of Technology
3Research Center for Numerical Tests on Material, Dalian University Dalian, China
Research Journal of Applied Sciences, Engineering and Technology 2014 3:614-618
Received: March 07, 2013 | Accepted: April 12, 2013 | Published: January 20, 2014
Abstract
Based on the plastic-hinge method, the influence of different factors on the ultimate flexural capacity is analyzed, including relationship between the ultimate bearing capacity and prestressing tendon area, the regular reinforcement area, the strength of concrete and other influence factors. The results show that, the increase in the area of regular reinforcement and the strength of concrete can enhance the ultimate flexural capacity. Moreover, the ultimate bending moment increases first and then decreases, with the increasing of the prestressing tendon. Thus, the most effective method to increase the ultimate flexural capacity of prestressed concrete bridge pier is to increase regular reinforcement ratio, and to control the number of prestressing tendon simultaneously.
Keywords:
Pier, prestressed concrete, ultimate flexural capacity, unbounded,
References
-
Du, L.S. and X.L. Liu, 2003. Study on stress change of unbonded prestressed tendon based on structure deformation. Civil Eng. J., 36(8): 12-19.
-
Du, J.S., F.T.K. Au, Y.K. Cheung, and A.K.H. Kwan, 2008. Ductility analysis of prestressed concrete beams with unbonded tendons. Eng. Struct., 30(1): 13-21.
CrossRef -
Kim, K.S. and D.H. Lee, 2012. Nonlinear analysis method for continuous post-tensioned concrete members with unbonded tendons. Eng. Struct., 40: 487-500.
CrossRef -
Kwan, W.P. and S.L. Billing, 2003. Unbonded posttensioned concrete bridge piers I: Monotonic and cyclic analyses. J. Bridge Eng., 8(2): 92-101.
CrossRef -
Ou, Y.C., P.S. Wang, M. Tsai, K. Chang and G. Lee, 2010. Large-scale experimental study of precast segmental unbonded posttensioned concrete bridge columns for seismic regions. J. Struct. Eng., 136(3): 255-264.
CrossRef -
Tam, A. and F.N. Pannell, 1976. The ultimate moment of resistance of unbonded partially prestressed reinforced concrete beams. Mag. Concrete Res., 28(97): 203-208.
CrossRef -
Wang, X.L., 2007. Study on respectability of unbounded concrete column with high strength steel strand. M.A. Thesis, Tsinghua University, Beijing.
-
Yang, J.R., 2011. Scheme design and finite element analysis of externally prestressed segmental bridge pier. M.A. Thesis, Wuhan University of Technology, Wuhan.
-
Zhang, N., C.C. Fu, and H.M. Che, 2011. Experiment and numerical modeling of prestressed concrete curved slab with spatial unbonded tendons. Eng. Struct., 33(3): 747-756.
CrossRef
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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