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http://dx.doi.org/10.12989/sem.2003.15.3.345

Strength of FRP RC sections after long-term loading  

Pisani, M.A. (Politecnico di Milano, Department of Structural Engineering)
Publication Information
Structural Engineering and Mechanics / v.15, no.3, 2003 , pp. 345-365 More about this Journal
Abstract
The adoption of fibre reinforced polymer (FRP) rebars (whose behaviour is elastic-brittle) in reinforced concrete (RC) cross sections requires the assessment of the influence of time-dependent behaviour of concrete on the load-carrying capacity of these sections. This paper presents a method of computing the load-carrying capacity of sections that are at first submitted to a constant long-term service load and then overloaded up to ultimate load. The method solves first a non-linear visco-elastic problem, and then a non-linear instantaneous analysis up to ultimate load that takes into account the self-equilibrated stress distribution previously computed. This method is then adopted to perform a parametric analysis that shows that creep and shrinkage of concrete increase the load-carrying capacity of the cross section reinforced with FRP and allows for the suggestion of simple design rules.
Keywords
RC; compact cross-sections; long-term loading; load-carrying capacity; FRP reinforcement;
Citations & Related Records

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1 Agarwal, B.D. and Broutman, L.J. (1994), Analysis and Performance of Fiber Composites, Wiley Interscience.
2 ASTM (1992), Standard Test Method for Compressive Properties of Rigid Plastics, ASTM D695M-91, American Society for Testing and Materials, Philadelpia, Pa., Vol. 08.01.
3 CEB-FIP (1991), CEB-FIP Model Code 1990, CEB Bulletin d'Information $N^{\circ}$203-204-205, Lausanne, Switzerland.
4 CEB (1993), Selected Justification Notes, CEB Bulletin d'Information $N^{\circ}$ 217, Lausanne, Switzerland.
5 Chaallal, O. and Benmokrane, B. (1993), "Physical and mechanical performance of an innovative glass-fiber reinforced plastic rod for concrete and granted anchorages", Canadian Journal of Civil Engineering, 20(2), 254-268.   DOI   ScienceOn
6 Machida, A. Editor (1993), State-of-the-art Report on Continuous Fiber Reinforcing Materials, Japan Society of Civil Engineering, Tokyo, Japan.
7 Pisani, M.A. (2000), "Long-term behaviour of beams prestressed with aramid fibre cables - Part 1: a general method", Engineering Structures, 22(2000), 1641-1650.   DOI   ScienceOn
8 Pisani, M.A. (1996), "A numerical method to analyse compact cross sections", Computers & Structures, 59(6), 1063-1072.   DOI   ScienceOn
9 Rotter, J.M. (1985), "Rapid exact inelastic biaxial bending analysis", ASCE J. Struct. Eng., 111(12), 2659-2674.   DOI   ScienceOn
10 Tepfers, R., Tamuzs, V., Apinis, R. and Modniks, J. (1999), "Pull-out, flexural rotation capacity and creep tests using hybrid composite rods and CFCC rods for reinforcement in concrete", Chalmers University of Technology, Division of Building Technology, Work No.32, Publication 99:4, Goteborg, Sweden.
11 Erki, M.A. and Rizkalla, S.H. (1993), "FRP reinforcement for concrete structures", Concrete International, American Concrete Institute, 15(6), 48-53.
12 Malvar, L.J. (1994), "Unidirectional, core-shell hybrids for concrete reinforcement - A preliminary study", Naval Facilities Engineering Service Center, Port Hueneme (CA, USA), TR-2011-SHR.
13 CEB (1984), CEB Design Manual on Structural Effects of Time-dependent Behaviour of Concrete, CEB Bulletin d'Information $N{\circ}$ 142/142bis, Lausanne, Switzerland.
14 Benmokrane, B. and Chaallal, O. (1996), "Fiber-reinforced plastic rebars for concrete applications", Composites. Part B: Engineering, 27B.
15 CEE (1986), "Acciaio per armature per cemento armato non precompresso", EURONORM 80-85.
16 Jung, T.H. and Subramanian, R.V. (1994), "Alkali resistence enhancement of basalt fibers by hydrated zirconia films formed by the sol-gel process", J. Mater. Res., 9(4), 1006-1013.   DOI   ScienceOn
17 Nanni, A. Editor (1993), Fiber-Reinforced-Plastic (FRP) Reinforcement for Concrete Structures: Properties and Applications, Elsevier.
18 CEN (1991), Eurocode n.2: Design of Concrete Structures - Part 1: General Rules and Rules for Buildings, ENV 1992-1-1, European Committee for Standardization, Commission of the European Communities, Brusselles, Belgium.
19 Mola, F. and Gattesco, N. (1983), "Creep effects in RC cracked sections", Proc. Theoretical and Applied Mecanics Department, University of Udine (in Italian).
20 Pisani, M.A. (1994), "Numerical analysis of creep problems", Computers & Structures, 51(1), 57-63.   DOI   ScienceOn
21 Machida, A., Tanaka, T. and Yagi, K. (1992), "The development and application of a ground anchor using new materials", Advanced Composite Materials in Bridges and Structures, K. W. Neale and P. Labossiere Editors, Canadian Society for Civil Engineering, 393-402.