Half-Scale Tests on Masonry Panels Strengthened with Pultruded FRP Frames

Abstract:

The research explores the capabilities of frames of pultruded FRP profiles as seismic strengthening for masonry walls. A programme is currently in progress at the IUAV University of Venice, consisting of in-plane shear tests on half-scale panels. The selected masonry type is traditional, i.e. clay bricks and lime mortar joints. The goal is to assess the effectiveness of the strengthening system with respect to the undamaged condition of masonry. A particular focus is on the connection system between the panel and the frame, i.e. epoxy adhesive connection and bolted joint. The results will be implemented in FEM analyses and analytical models to predict the system's and the joints' shear strength.

• Periodical: Key Engineering Materials (Volume 817)
• Pages: 95-102
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.817.95
• Online since: August 2019
• Authors: Francesca Sciarretta*, Salvatore Russo
• Keywords: Frame Reinforcement, Pultruded FRP, Shear Tests, Traditional Brickwork

References

[1] D. Dubină (ed.), Seismic retrofitting of existing structures using steel-based solutions, International workshop organised within the framework of FRS2-CT-2014-00022 STEELEARTH, Timişoara, Romȃnia, 23th November (2015).

[2] Information on http://www.tekpeengineers.com/seismic-retrofit.html.

[3] Boscato G., Russo S., Dissipative capacity of a FRP spatial pultruded structure. Compos. Struct. 113 (2014) 339-353.

DOI: 10.1016/j.compstruct.2014.03.036

[4] S. Russo, Performance of a PFRP structure covering a historic building struck by an earthquake, Adv. Compos. Constr. (2011) – Proc. of ACIC 2011, Coventry, UK, 6–8th Sept (2011).

[5] G. Boscato, A. Dal Cin, G. Riva, S. Russo, F. Sciarretta, Knowledge of the construction technique of the multiple leaf masonry façades of Palazzo Ducale in Venice with ND and MD tests, Adv. Mat. Res. 919-921 (2014) – Proc. of ICSBM, Guangzhou, China; 15-16th March, 318-324.

DOI: 10.4028/www.scientific.net/amr.919-921.318

[6] G. Boscato et al., Approach and methodology in understanding the structural behaviour of historic arch bridges through dynamic monitoring: The case of Rialto bridge in Venice. In: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas – 34th International IABSE Symposium, Venice, Italy, 22-24th September (2010).

DOI: 10.2749/222137810796064174

[7] S. Sugano, State-of-the-art in techniques for rehabilitation of buildings, in: 11th WCEE - World Conference on Earthquake Engineering, Acapulco, Mexico, 23-28th June 1996, paper n° 2175.

[8] W. McGinley, Design of anchor bolts in masonry, Prog. Struct. Engng. Mater. 8 (2006) 155-64.

DOI: 10.1002/pse.222

[9] R. Muñoz, P.B. Lourenço, S. Moreira, Experimental results on mechanical behaviour of metal anchors in historic stone masonry, Constr. Buil. Mater. 163 (2018) 643-655.

DOI: 10.1016/j.conbuildmat.2017.12.090

[10] Brick Industry Association, Anchor bolts for brick masonry, Technical note n° 44, (1986).

[11] M. Nehdi, A. El Damatty, R. Rahimi, Investigation on lap-joint behaviour of GFRP plates bonded to silica fume and rice husk ash concrete. Int. J. Adh. Adhes. 23 (2003) 323-333.

DOI: 10.1016/s0143-7496(03)00050-2

[12] Si Larbi, E. Ferrier, B. Jurkiewiez, P. Hamelin, Static behaviour of steel concrete beam connected by bonding. Engrg. Struct. 29 (2007) 1034-1042.

DOI: 10.1016/j.engstruct.2006.06.015

[13] Eurocode 8-3/2003, Design of structures for earthquake resistance. Part 3: strengthening and repair of buildings. CEN – European Committee for Standardization, (2003).

[14] EN 845-1:2013+A1:2016, Specification for ancillary components for masonry Part 1: Wall ties, tension straps, hangers and brackets, last edited (2016).

DOI: 10.3403/30265757

[15] Masonry Standards Joint Committee (MSJC), Building code requirements for masonry structures (ACI 530-02/ASCE 5-02/TMS 402-02), The Masonry Society, USA, (2005).

DOI: 10.14359/1541

[16] Cecchi, S. Russo, F. Sciarretta, Preliminary investigation on FRP profiles for the structural retrofit of masonry structures, Key Engrg. Mat. 747 (2017) – Proceedings of MuRiCo5, Bologna, Italy; 28-30th June 2017, 77-84.

DOI: 10.4028/www.scientific.net/kem.747.77

[17] F. Sciarretta, S. Russo, FE modelling and experimental investigation on adhesive joints between clay brick and pultruded FRP profiles. Submitted paper (2019).

DOI: 10.1016/j.conbuildmat.2019.07.291

[18] S. Russo, F. Sciarretta, Experimental and theoretical investigation on masonry after high temperature exposure, Exp. Mech. 52 (2012) 341-359.

DOI: 10.1007/s11340-011-9493-0

[19] ASTM C67-05, Standard test methods for sampling and testing brick and structural clay tile, (2005).