Beam-Column Joint Retrofitting with High Performance Fiber Reinforced Concrete Jacketing

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The possibility of strengthening existing R/C structures with a new technique based on the application of a High Performance Fiber Reinforced Concrete jacket is investigated herein, with the aim of studying the effectiveness of this technique for seismic retrofitting. The results of a beam-column joint full scale test simulating the behavior of existing beam-column joints are presented. The specimen have been subjected first to static loads and after to cyclic actions with increasing amplitude, up to failure. The tests demonstrated that, with the application of a HPFRC jacket, it was possible to remarkably increase the bearing capacity of the columns reaching also an adequate level of ductility, and the resistance of the beam column joints, with very little visible damage, thanks to the tensile strength contribution of HPFRC.

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Periodical:

Edited by:

Ezio Cadoni and Marco di Prisco

Pages:

577-582

Citation:

C. Beschi et al., "Beam-Column Joint Retrofitting with High Performance Fiber Reinforced Concrete Jacketing", Applied Mechanics and Materials, Vol. 82, pp. 577-582, 2011

Online since:

July 2011

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$41.00

[1] G. Martinola, A. Meda, G.A. Plizzari and Z. Rinaldi in: An application of high performance fiber reinforced cementitious composites for R/C beams strengthening, FRAMCOS 6, Catania (Italy), 18–21 June (2007).

[2] L. Maisto, A. Meda, G.A. Plizzari and Z. Rinaldi, in: R/C beams strengthening and repair with high performance fiber reinforced concrete jacket, 4th International Conference on the Conceptual Approach to Structural Design, Venezia (Italy), 27–29 June, (2007).

[3] DM 2008: Technical code for structures, (In Italian), January 14 (2008).

[4] C. Beschi, A. Meda and P. Riva, in: High Performance Fiber Reinforced Concrete Jacketing in a Seismic Retrofitting Application, ATC & SEI conference on Improving the Seismic Performance of Existing Buildings and Other Structures, San Francisco 9-11/12/(2009).

DOI: https://doi.org/10.1061/41084(364)22

[5] EN 1998-1-1 (2004). EUROCODE 8: Design structures for earthquake resistance, part 1: General rules, seismic actions and rules for buildings.

DOI: https://doi.org/10.3403/03244372

[6] EN 1992-1-1 (2004), EUROCODE 2: Design of Concrete Structures - Part 1-1: General rules and rules for buildings.

[7] CNR-DT 204 (2006): Guide for the design and construction of fiber reinforced concrete structures, Italian National Research Council.

[8] CNR-DT 200 (2004): Guide for the design and construction of externally bonded FRP systems for strengthening existing structures, Italian National Research Council.

[9] Instructions DM2008: Instructions for the application of the new technical code for structures, (In Italian), February 2 (2009).