NUMERICAL ANALYSIS OF HARDWOOD TIMBER BEAMS REINFORCED WITH STEEL PLATE SCREWED

Authors

  • Pedro Ignácio Lima Gadêlha Jardim Universidade Federal de Rondônia, Departamento de Engenharia Civil, Porto Velho, RO - Brasil
  • Fernando Júnior Resende Mascarenhas Universidade de Coimbra, Programa de Pós-Graduação em Engehnaria Civil, Coimbra, UC - Portugal image/svg+xml
  • Diego Henrique de Almeida Universidade Federal de Rondônia, Departamento de Engenharia Civil, Porto Velho, RO - Brasil image/svg+xml
  • Francisco Antonio Rocco Lahr Universidade de São Paulo, Departamento de Engenharia de Estruturas, São Carlos, SP - Brasil image/svg+xml
  • André Luis Christoforo Universidade Federal de São Carlos, Departamento de Engenharia Civil, São Carlos, SP - Brasil image/svg+xml

Keywords:

Composite Materials, structural recovery, composite structures

Abstract

There are several technologies to recover and strengthen timber structures. Two usual alternatives are: the use of steel plates screwed and carbon fiber mats glued with epoxy adhesive. A gap was observed in the literature regarding the study of reinforcement in hardwood timber beams with cross-section loss, commonly found in attacks by biotic or abiotic agents. This study aimed to analyze the flexural stiffness recovery capacity of steel plate screwed to a timber beam with different cross-sectional losses, with a special interest in the effect caused by different bolt arrangements. The results were compared with simulations made using a carbon fiber mat (CF). It was possible to observe that, despite presenting lower efficiency than the CD, the use of steel plate screwed could return the initial stiffness in some models, and the specification of the bolts is relevant in obtaining the results.

Keywords: Composite materials; structural recovery; composite structures

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Published

2022-08-15

How to Cite

Jardim, P. I. L. G., Mascarenhas, F. J. R., de Almeida, D. H., Lahr, F. A. R., & Christoforo, A. L. (2022). NUMERICAL ANALYSIS OF HARDWOOD TIMBER BEAMS REINFORCED WITH STEEL PLATE SCREWED. Revista Árvore, 46(1), https://doi.org/10.1590/1806–908820220000019. Retrieved from https://revistaarvore.ufv.br/rarv/article/view/261047

Issue

Revista Árvore, Viçosa-MG, v.46, 2022

Section

Wood Technology and Utilization of Forest Products

License

All authors agreed to submit the work to Revista Árvore and granted the exclusive license to publish the article. The authors affirm that it is an original work and has not been previously published elsewhere. The scientific content and opinions expressed in the article are the sole responsibility of the authors and reflect their opinions, not necessarily representing the opinions of the editorial board of Revista Árvore or of the Society of Forest Investigations (SIF).

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