Browse > Article
http://dx.doi.org/10.12989/sem.2009.33.5.605

Numerical simulation of an external prestressing technique for prestressed concrete end block  

Murthy, A. Rama Chandra (Structural Engineering Research Centre, CSIR, CSIR Campus)
Ganapathi, S. Chitra (Structural Engineering Research Centre, CSIR, CSIR Campus)
Saibabu, S. (Structural Engineering Research Centre, CSIR, CSIR Campus)
Lakshmanan, N. (Structural Engineering Research Centre, CSIR, CSIR Campus)
Jayaraman, R. (Structural Engineering Research Centre, CSIR, CSIR Campus)
Senthil, R. (Structural Engineering Department, Anna University)
Publication Information
Structural Engineering and Mechanics / v.33, no.5, 2009 , pp. 605-619 More about this Journal
Abstract
This paper presents the details of finite element (FE) modeling and analysis of an external prestressing technique to strengthen a prestressed concrete (PSC) end block. Various methods of external prestressing techniques have been discussed. In the proposed technique, transfer of external force is in shear mode on the end block creating a complex stress distribution. The proposed technique is useful when the ends of the PSC girders are not accessible. Finite element modeling issues have been outlined. Brief description about material nonlinearity including key aspects in modeling inelastic behaviour has been provided. Finite element (FE) modeling including material, loading has been explained in depth. FE analysis for linear and nonlinear static analysis has been conducted for varying external loadings. Various responses such as out-of-plane deformation and slip have been computed and compared with the corresponding experimental observations. From the study, it has been observed that the computed slope and slip of the steel bracket under external loading is in good agreement with the corresponding experimental observations.
Keywords
concrete; external prestressing; finite element analysis; material nonlinearity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 ANSYS 6.0 Theory and Reference Manual, 2002
2 Aparicio, A.C., Ramos, G. and Casas, J.R. (2000), 'Externally prestressed high strength concrete viaduct', J. Bridge Eng., 337-343   DOI
3 Aparicio, A.C., Ramos, G. and Casas, J.R. (2002), 'Testing of externally prestressed concrete beams', Eng. Struct., 24, 73-84   DOI   ScienceOn
4 Bahaari, M.R. and Sherbourne, A.N. (2000), 'Behaviour of eight-bolt large capacity end plate connections', Comput. Struct., 77, 315-325   DOI   ScienceOn
5 Bursi, O.S. and Jaspart, J.P. (1997), 'Benchmarks for finite element modeling of bolted steel connections', J. Constr. Steel Res., 43, 17-42   DOI   ScienceOn
6 Bursi, O.S. and Jaspart, J.P. (1998), 'Basic issues in finite element simulation of extended and plate connections', Comput. Struct., 69, 361-382   DOI   ScienceOn
7 Chen, Shiming, Jia, Yuanlin and Wang, Xindi (2009), 'Experimental study of moment redistribution and load carrying capacity of externally prestressed continuous composite beams', Struct. Eng. Mech., 31(5), 605-619   DOI   ScienceOn
8 Fanning, P., Tucker, M. and Broderick, B.M. (2000), 'Non-linear finite element analysis of semi-rigid bolted end-plate connections', Proceedings of the Fifth International Conference on Computational Structures Technology, 397-403
9 Haroyli, M.H. (1993), 'Strengthening of concrete beams by external prestressing', PCI J., 38(6), 76-88
10 Jayaraman, R., Saibabu, S., Vivekanand, K. and Lakshmanan, N. (2007), Experimental Investigation on the Application of External Prestressing for Strengthening of Concrete Structures, SERC Research Report, PSCOLP 11141-RR-2007-1, Chennai, India
11 Jung, J.W., Abolmaali, A. and Choi, Y. (2006), 'Finite element analysis of tapered steel', J. Bridge Eng., ASCE, 611-617
12 Kim, J., Yoon, J.C. and Kang, B.S. (2007), 'Finite element analysis and modeling of structure with bolted joints', Appl. Math. Model., 31, 895-911   DOI   ScienceOn
13 Stallings, J.M. and Hwarg, D.Y. (1992), 'Modelling pretensions in bolted connections', Comput Struct., 45(4), 801-803   DOI   ScienceOn
14 Miyamoto, A., Tei, K., Nakamura, H. and Bull, J.W. (2000), 'Behavior of prestressed beam strengthened with external tendons', J. Struct. Eng., 1033-1044   DOI   ScienceOn
15 Mukherjee, A. and Rai, G.L. (2009), 'Performance of reinforced concrete beams externally prestressed with fiber composites', Constr. Build. Mater., 23, 822-828   DOI   ScienceOn
16 Padmarajaiah, S.K. and Ramaswamy, Ananth (2002), 'A finite element assessment to flexural strength of prestressed concrete beams with fiber reinforcement', Cement Concrete Compos., 24, 229-241   DOI   ScienceOn
17 Yang, J.G., Murray, T.M. and Plaut, R.H. (2000), 'Three-dimensional finite element analysis of double angle connections under tension and shear', J. Constr. Steel Res., 54, 227-244   DOI   ScienceOn
18 Ziomek, D., Tomana, A. and Waszczyszyn, Z. (1992), 'Finite element modeling of end plate connection versus experimental results', Proceedings of Semi-Rigid Behaviour of Civil Engineering Structural Connections- COST C1, Stras-bourg, 433-442
19 Zona, A., Ragni, L. and Dall'Asta, A. (2008), 'Finite element formulation for geometric and material nonlinear analysis of beams prestressed with external slipping tendons', Finite Elem. Anal. Des., 44, 910-919   DOI   ScienceOn