Seismic Behavior of A Masonry Chimney Retrofitted with Composite Materials: A Preliminary Aproach

Seismic Behavior of A Masonry Chimney Retrofitted with Composite Materials: A Preliminary Aproach

D. Bru S. Ivorra F. J. Baeza 

Civil Engineering Department, University of Alicante, Spain

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This paper presents a structural analysis of a masonry chimney, which is being catalogued as local interest heritage, according Eurocode 8. The chimney, located in Alicante (Spain), is severely damaged, and it shows several longitudinal cracks, and mortar loss between bricks. In order to guarantee the structural safety under seismic forces, the chimney was retrofitted with composite materials. This reinforcement comprised an internal textile reinforced mortar (TRM) layer, i.e. glass fiber mesh and cement matrix, and local reinforcement with longitudinal carbon fiber bands. This study consisted of two stages: first, numerical and experimental analyses of the original chim- ney were done. Second, design of an internal reinforcement scheme was done. The experimental text includes acceleration measures under ambient vibration for an operational modal analysis. And laboratory test for bricks and mortar to study the mineralogical composition and mechanical properties. The numerical analysis includes, preliminary pushover analysis before and after the reinforcement was done, and second, linear response spectrum analysis to evaluate the structural stability under the seismic demand.


FEM, Reinforced masonry TRM walls, seismic loads, seismic retrofitting, slender masonry structures


[1] Magliulo, G., Ercolino, M., Petrone, C., Coppola, O. & Manfredi, G., The Emilia earthquake: seismic performance of precast reinforced concrete buildings. Earthquake Spectra, 30(2), pp. 891–912, 2014.

[2] Huang, W. & Gould, P.L., 3-D pushover analysis of a collapsed reinforced concrete chimney. Finite Elements in Analysis and Design, 43(11–12), pp. 879–887, 2007.

[3] Pallarés, F.J., Ivorra, S., Pallarés, L. & Adam, J.M., State of the art of industrial masonry chimneys: a review from construction to strengthening. Construction and Building Materials, 25(12), 4351–4361, 2011.

[4] Lourenço, P.B., Recommendations for restoration of ancient buildings and the survival of a masonry chimney. Construction and Building Materials, 20(4), pp. 239–251, 2006.

[5] Foti, D., Dynamic identification techniques to numerically detect the structural damage. The Open Construction and Building Technology Journal, 7(1), pp. 43–50, 2013.

[6] Peña, F., Lourenço, P.B., Mendes, N. & Oliveira, D.V., Numerical models for the seismic assessment of an old masonry tower. Engineering Structures, 32(5), pp. 1466–1478, 2010.

[7] Aoki, T. & Sabia, D., Structural characterization of brick chimney by experimental tests and numerical model updating. Masonry International, 19, pp. 41–52, 2006.

[8] Pallarés, F.J., Ivorra, S., Pallarés, L. & Adam, J.M., Seismic assessment of a CFRP-strengthened masonry chimney. Proceedings of the Institution of Civil Engineers- Structures and Buildings, 162(5), pp. 291–299, 2009.

[9] European Commitee for Standardization, Eurocode 8: Design of structures for earthquake resistance - Part 1 : General rules, seismic actions and rules for buildings. European Committee for Standardization, 1(1), 2004.

[10] Ministerio de Fomento. Gobierno de España, “Norma de construcción sismorresistente: Parte general y edificación (NCSE-02),” Real Decreto 997/2002, de 27 de Septiembre de 2002. 2002.

[11] Chopra, A.K. & Goel, R.K., A modal pushover analysis procedure for estimating seismic demands for buildings. Earthquake Engineering & Structural Dynamics, 31(3), pp. 561–582, 2002.

[12] Magalhães, A. & Veiga, R., Physical and mechanical characterisation of historic mor- tars. Application to the evaluation of the state of conservation [Caracterización física  y mecánica de los morteros antiguos. Aplicación a la evaluación del estado de con- servación]. Materiales de Construcción, 59(295), pp. 61–77, 2009.

[13] C. E. De Normalisation, “EN 1996-1-1:1995 Eurocode 6 - Design of masonry struc- tures - Part 1-1: General rules for reinforced and unreinforced masonry structures,” Management, pp. 1–123, 2005.

[14] CSI, “SAP2000. Analysis Reference Manual,” CSI: Berkeley (CA, USA): Computers and Structures INC. p. 496, 2016.