具有快速种植园的人参和山毛细枝和细枝的结构和设计价值

IF 0.7 4区 农林科学 Q4 MATERIALS SCIENCE, PAPER & WOOD
Róger Moya, Carolina Tenorio, Angel Navarro-Mora, Freddy Munoz
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引用次数: 0

摘要

Dipteryx panamensis和Hieronyma alchorneoides是哥斯达黎加造林项目中使用的两种高比重物种,但它们缺乏具有商业化结构价值的产品。为了在市场上介绍这两种木材,目的是研究两个截面(2cm×10cm和2cm×15cm)的实木梁和胶合层合木梁的性能,并确定弯曲试验的设计值。结果表明,胶合层合木梁的弯曲设计值(fb)在2至26MPa之间,而实心木梁的抗弯设计值(fb)在6至15MPa之间。在抗剪设计值(fv)中,胶合木梁的变化范围为0.29至0.67MPa,实心木梁的变动范围为1.80至2.58MPa。还发现巴拿马D.panamensis光束的数值高于alchornoides光束。最后,在地板和屋顶施工中,胶合层合木梁比实心木梁在弯曲参数方面表现出更好的性能和更高的设计值,从而产生更宽的跨度值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Strukturne i projektirane vrijednosti lameliranih greda i greda od cjelovitog drva Dipteryx panamensis i Hieronyma alchorneoides s brzorastućih plantaža
Dipteryx panamensis and Hieronyma alchorneoides are two species of high specific gravity used in reforestation programs in Costa Rica, but they lack products with structural value for commercialization. In order to introduce the wood of these two species in the market, the objective was established to study the behavior of solid timber beams and glued laminated timber beams of two cross sections (2 cm × 10 cm and 2 cm × 15 cm) and establish the design values in bending test. The results showed that the bending design values (fb) ranged from 2 to 26 MPa in glued laminated timber beams, while in solid timber beams, fb ranged from 6 to 15 MPa. In the shear design values (fv), the variation was from 0.29 to 0.67 MPa in glue laminated timber beams and from 1.80 to 2.58 MPa in solid timber beams. It was also found that the D. panamensis beams showed higher values than H. alchornoides beams. Finally, it was established that glued laminated timber beams showed better performance in bending parameters and higher design values, resulting in wider span values, than solid timber beams when used in floor and roof construction.
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来源期刊
Drvna Industrija
Drvna Industrija MATERIALS SCIENCE, PAPER & WOOD-
CiteScore
1.80
自引率
9.10%
发文量
32
审稿时长
>12 weeks
期刊介绍: "Drvna industrija" ("Wood Industry") journal publishes original scientific and review papers, short notes, professional papers, conference papers, reports, professional information, bibliographical and survey articles and general notes relating to the forestry exploitation, biology, chemistry, physics and technology of wood, pulp and paper and wood components, including production, management and marketing aspects in the woodworking industry.
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