Trm Reinforcement of Masonry Specimens for Seismic Areas

Trm Reinforcement of Masonry Specimens for Seismic Areas

S. Ivorra D. Bru A. Galvañ Stefano SilVestri Cristina Apera Dora Foti 

Civil Engineering Department, University of Alicante, Spain

Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Unversità di Bologna, Italy

DICAR, Politecnico di Bari, Italy

Page: 
463-474
|
DOI: 
https://doi.org/10.2495/SAFE-V7-N4-463-474
Received: 
N/A
|
Accepted: 
N/A
|
Published: 
8 November 2017
| Citation

OPEN ACCESS

Abstract: 

This document analyses the resistant behaviour to diagonal compression and direct compression of brick masonry specimens, reinforced with textile reinforced mortars (TRM) and without them. The numerical models have been calibrated with experimental results in order to have a suitable technique to reinforce masonry historic constructions where extraordinary tension stresses could occur in seismic situations. For the numerical modelling, FEM models have been developed using non-linear layered bi-dimensional shell elements. Moreover, a comparative analysis has been developed between the numerical models and the experimental ones. There are two different types of reinforced specimens: two layers to reinforce both surfaces (i), and one layer for only one surface (ii). The point of this (ii) is to respect the Italian legislation indications for the protection of historic constructions.

Keywords: 

reinforced masonry TRM walls FEM

  References

[1] Bernat-Maso, E., Gil, L. & Roca, P., Numerical analysis of the load-bearing capacity of brick masonry walls strengthened with textile reinforced mortar and subjected to eccentric compressive loading. Engineering Structures, 91, pp. 96–111, 2015. https://doi.org/10.1016/j.engstruct.2015.02.032

[2] Corradi, M., Borri, A., Castori, G. & Sisti, R., Shear strengthening of wall panels through jacketing with cement mortar reinforced by GFRP grids. Composites Part B: Engineering, 64, pp. 33–42, 2014.

https://doi.org/10.1016/j.compositesb.2014.03.022

[3] Ismail, N. & Ingham, J.M., Polymer textiles as a retrofit material for masonry walls. Proceedings of the Institution of Civil Engineers - Structures and Buildings, 167(1), pp. 15–25, 2014.

https://doi.org/10.1680/stbu.11.00084

[4] Papanicolaou, C.G., Triantafillou, T.C., Karlos, K. & Papathanasiou, M., Textile- reinforced mortar (TRM) versus FRP as strengthening material of URM walls: in-plane cyclic loading. Materials and Structures, 40(10), pp. 1081–1097, 2007. https://doi.org/10.1617/s11527-006-9207-8

[5] Yardim, Y. & Lalaj, O., Shear strengthening of unreinforced masonry wall with different fiber reinforced mortar jacketing. Construction and Building Materials, 102, pp. 149–154, 2016.

https://doi.org/10.1016/j.conbuildmat.2015.10.095

[6] Foti, D. & Romanazzi, A., Experimental analysis of fiber-reinforced mortar for walls in rectified brick blocks [Analisi sperimentale di malte fibrorinforzate per pareti in blocchi di laterizio rettificati]. C e Ca, 41(2), pp. 109–118, 2011.

[7] Bilgin, H. & Korini, O., A new modeling approach in the pushover analysis of masonry structures. International Students’ Conference of Civil Engineering, ISCCE, EpokaUni- versity, Tirana, Albania, May 2012.

[8] Chaimoon, K. & Attard, M.M., Modeling of unreinforced masonry walls under shear and compression. Engineering Structures, 29(9), pp. 2056–2068, 2007. https://doi.org/10.1016/j.engstruct.2006.10.019

[9] Gabor, A., Ferrier, E., Jacquelin, E. & Hamelin, P., Analysis and modelling of the in- plane shear behaviour of hollow brick masonry panels. Construction and Building Materials, 20(5), pp. 308–321, 2006. https://doi.org/10.1016/j.conbuildmat.2005.01.032

[10] Akhaveissy, A.H., The DSC model for the nonlinear analysis of in-plane loaded masonry structures. The Open Civil Engineering Journal, 6(1), pp. 200–214, 2012. https://doi.org/10.2174/1874149501206010200

[11] Koutas, L., Triantafillou, T. & Bousias, S., Analytical modeling of masonry-infilled RC frames retrofitted with textile-reinforced mortar. Journal of Composites for Construction, pp. 1–14, 2014.

[12] Lee, J.S., Pande, G.N., Middleton, J. & Kralj, B., Numerical modelling of brick masonry panels subject to lateral loadings. Computers & Structures, 61(4), pp. 735–745, 1996. https://doi.org/10.1016/0045-7949(95)00361-4

[13] Foti, D., On the numerical and experimental strengthening assessment of tufa masonry with FRP. Mechanics of Advanced Materials and Structures, 20(2), pp. 163–175, 2013. https://doi.org/10.1080/15376494.2012.743634

[14] SAP2000, v. 14, Computers and Structures, Inc. Structural Sotware for analysis and Design, Berkeley, CA, USA, 2012.

[15] Corradi, M., Borri, A. & Vignoli, A., Experimental study on the determination of strength of masonry walls. Construction and Building Materials, 17(5), pp. 325–337, 2003.

https://doi.org/10.1016/s0950-0618(03)00007-2

[16] Corradi, M., Tedeschi, C., Binda, L. & Borri, A., Experimental evaluation of shear and compression strength of masonry wall before and after reinforcement: deep repointing. Construction and Building Materials, 22(4), pp. 463–472, 2008. https://doi.org/10.1016/j.conbuildmat.2006.11.021

[17] EN 1052-1, Methods of test for masonry - Part 1: Determination of compressive strength. European Committee for standardization, p. 11, 1999.

[18] ASTM E519/E519M. Standard Test Method for Diagonal Tension (Shear) in masonry assemblages. ASTM International, West Conshohocken, PA, 2010.