Structural strengthening of a historical building in Rio Branco city-Acre
Abstract
This work presents the use of the technique of structural reinforcement for jacketing applied in the reform
of the historical building called "Big House", due to the architectural need to remain as faithful to the
original design,justifying the need for increased resilience without substantial increase in the cross section
of the pillars. The results obtained by analyzing the reinforcement relative to rectangular columns
subjected to bending, shearing and torsional, in accordance with the NBR 6118 (ABNT, 2014), indicated
that the studied technique was efficient because all reinforced parts had a greater bearing capacity and
met the current requirements without compromising the structural safety of the building's characteristic
architectural.
Keywords: historic building; structural strengthening; jacketing.
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References
Associação brasileira de normas técnicas (2014), “NBR 6118 – Projeto e Execução de Obras de Concreto Armado” (Rio de Janeiro, Brasil: ANBT), p. 238.
Júlio, E. S.; Branco, F.; Silva, V. D. (2003), “Structural Rehabilitation of Columns using Reinforced Concrete Jacketing”, Progress in Structural Engineering and Materials, V.5, pp. 29-37. DOI: https://doi.org/10.1002/pse.140
Marí, A.; Hellesland, J. (2005), “Lower Slenderness Limits for Rectangular Reinforced Concrete Columns”, Journal of Structural Engineering, V.131, pp. 85-95. DOI: https://doi.org/10.1061/(ASCE)0733-9445(2005)131:1(85)
Mehta, P. K.; Monteiro, P. J. M. (2014), “Concreto: Microestrutura, Propriedades e Materiais” (São Paulo, Brasil: Nicole Pagan Hasparyk), p.782.
Tang, C. H.; Yang, Y. C. (2011), “Loading Correlation for Reliability Analysis of Reinforced Concrete Columns”, Advanced Materials Research, V.243-249, pp.396-405. DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.396
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