Nail laminated timber: A sustainable and low - cost alternative for construction

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DOI:

https://doi.org/10.4025/actascitechnol.v48i1.75135

Palavras-chave:

Mechanical properties; sustainable construction; numerical simulation; wood performance.

Resumo

Nail Laminated Timber (NLT) stands out in the construction industry due to its structural characteristics, environmental benefits, and ease of fabrication. It is an engineered wood panel composed of lamellae arranged side by side and joined using nails, which can be either metallic or wooden, without the use of adhesives. This panel can be manufactured using any wood species. The use of NLT, already well - established in North America, offers a sustainable alternative, as the utilization of timber from plantation forests reduces environmental impact compared to traditional construction materials. However, its broader application in Brazil requires specific standardization and national studies to evaluate its mechanical properties. This study presents a literature review on the subject, along with the results of experimental tests, including direct shear tests conducted on specimens and bending tests performed on beams and NLT panels. Numerical simulations are also included, highlighting and analyzing the areas subjected to the highest stress demands. Results indicated that NLT shows great potential for use in construction, offering good strength and stiffness properties. However, visual grading of the lamellae is essential, as the natural defects in the wood can compromise the structural integrity of the element under bending.

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Referências

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American Wood Council. (2018). National design specification (NDS) for wood construction (ANSI/AWC NDS-2018).
Associação Brasileira de Normas Técnicas. (2022a). ABNT NBR 7190-1:2022: Projeto de estruturas de madeira – Parte 1: Requisitos.
Associação Brasileira de Normas Técnicas. (2022b). ABNT NBR 7190-2:2022: Projeto de estruturas de madeira – Parte 2: Métodos de ensaio para classificação visual e mecânica de peças estruturais de madeira.
Associação Brasileira de Normas Técnicas. (2022c). ABNT NBR 7190-4:2022: Projeto de estruturas de madeira – Parte 4: Métodos de ensaio para caracterização de peças estruturais.
Associação Brasileira de Normas Técnicas. (2022d). ABNT NBR 7190-5:2022: Projeto de estruturas de madeira – Parte 5: Métodos de ensaio para determinação da resistência e da rigidez de ligações com conectores mecânicos.
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Canadian Wood Council. (2019). Nail laminated timber: Canadian design and construction guide (Vol. 1.1). https://www.naturallywood.com/wp-content/uploads/2020/08/NLT_Canadian_Design_Construction_Guide.pdf
Derikvand, M., Kotlarewski, N., Lee, M., & Ozarska, B. (2019). Short-term and long-term bending properties of nail-laminated timber constructed of fast-grown plantation eucalypt. Construction and Building Materials, 211, 952–964. https://doi.org/10.1016/j.conbuildmat.2019.03.292
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Gong, M. (2019). Lumber-based mass timber products in construction. In G. Concu (Ed.), Timber buildings and sustainability (pp. 8-20). IntechOpen. https://doi.org/10.5772/intechopen.85808
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Publicado

2026-04-14

Edição

Seção

Engenharia Civil

Como Citar

Nail laminated timber: A sustainable and low - cost alternative for construction . (2026). Acta Scientiarum. Technology, 48(1), e75135. https://doi.org/10.4025/actascitechnol.v48i1.75135

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