钢板螺纹加固硬木梁的数值分析

IF 0.6 4区农林科学 Q4 FORESTRY

Revista Arvore Pub Date : 2022-01-01 DOI:10.1590/1806-908820220000019

Pedro Ignácio Lima Gadêlha Jardim, Fernando Júnior Resende Mascarenhas, Diego Henrique de Almeida, Francisco Antonio Rocco Lahr, André Luis Christoforo

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引用次数: 2

摘要

-有几种技术可以恢复和加强木结构。常用的两种替代方法是:采用钢板旋紧和碳纤维垫用环氧胶粘接。在研究具有截面损失的硬木木梁加固的文献中观察到一个缺口，通常在生物或非生物制剂的攻击中发现。本研究旨在分析具有不同截面损失的钢板在木梁上的抗弯刚度恢复能力，并特别关注不同螺栓布置所产生的影响。结果与碳纤维垫(CF)的模拟结果进行了比较。可以观察到，尽管使用钢板螺钉的效率低于CD，但在某些模型中使用钢板螺钉可以恢复初始刚度，并且螺栓的规格与获得结果有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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NUMERICAL ANALYSIS OF HARDWOOD TIMBER BEAMS REINFORCED WITH STEEL PLATE SCREWED

– There are several technologies to recover and strengthen timber structures. Two usual alternatives are: the use of steel plates screwed and carbon ﬁ ber 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 ﬂ exural stiﬀ ness recovery capacity of steel plate screwed to a timber beam with diﬀ erent cross-sectional losses, with a special interest in the eﬀ ect caused by diﬀ erent bolt arrangements. The results were compared with simulations made using a carbon ﬁ ber mat (CF). It was possible to observe that, despite presenting lower eﬃ ciency than the CD, the use of steel plate screwed could return the initial stiﬀ ness in some models, and the speciﬁ cation of the bolts is relevant in obtaining the results.

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来源期刊

Revista Arvore FORESTRY-

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： A Revista Árvore é um veículo de comunicação científica da Sociedade de Investigações Florestais – SIF. O jornal é de acesso gratuito, revisado por pares, que publica bimestralmente trabalhos científicos originais no campo da Ciência Florestal. As áreas temáticas para publicação são: Ambiência e Conservação da Natureza, Manejo Florestal, Silvicultura e Tecnologia da Madeira e Utilização de Produtos Florestais. A política editorial visa manter alta conduta ética em relação à publicação e aos seus funcionários, rigor na qualidade dos artigos científicos, seleção de revisores qualificados, respeito profissional aos autores e processo de tomada de decisão imparcial. A Revista Árvore publica artigos apenas em inglês. Artigos de revisão podem ser publicados se houver uma discussão relevante resumindo o estado da arte sobre o assunto. A revisão estrita da literatura não é aceita.