Size effects on the bending strength of Chinese larch pine laminated veneer lumber

Li, Minmin; He, Minjuan; Li, Zheng

doi:10.1007/s00107-023-01933-8

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…This paper compared the dowel-bearing strength of RT and TR specimens with other bamboo-or-wood products, such as larch laminated wood (LLW) [33], glulam bamboo (GB) [34], tropical hard woods (THW) [35], and glued laminated Guadua bamboo (GLGB) [36]. T There was a low coefficient of variation of less than 15% in the density of selected materials, ranging from 0.5 to 1.5 grams per cubic centimeter.…”

Section: Comparison Between Lfbl and Other Bamboo-or-wood Productsmentioning

confidence: 99%

Experimental evaluation of the dowel-bearing strength of laminated flattened-bamboo lumber perpendicular to grain

Chen

Yang

et al. 2022

Construction and Building Materials

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Section: Comparison Between Lfbl and Other Bamboo-or-wood Productsmentioning

confidence: 99%

Experimental evaluation of the dowel-bearing strength of laminated flattened-bamboo lumber perpendicular to grain

Chen

Yang

et al. 2022

Construction and Building Materials

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“…The higher the quality of veneers, the better the performance of LVL. LVL is typically manufactured using softwoods such as Spruce, Pine, Hemlock-r, Douglas-r, and Larch (Colak et al 2007; Duriot et al 2021;Li et al 2023b; Wang and Dai, 2013). Consequently, some countries initially imported raw veneers.…”

Section: Introductionmentioning

confidence: 99%

Research on mechanical properties and fire resistance of flame- retardant laminated veneer lumber fabricated with fast-growing Poplar

Cui,

Chun,

Lin

et al. 2024

Preprint

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To fully utilize Chinese fast-growing timber resources, fast-growing poplar was selected for manufacturing flame-retardant laminated veneer lumber (FRLVL). Firstly, orthogonal experiments were conducted to assess the impact of four factors (hot-pressing time, hot-pressing temperature, retardant concentration, and retardant types) on the mechanical properties and burning behavior of FRLVL. Subsequently, optimal manufacturing parameters were chosen based on statistical analysis. Finally, the fire performance of LVL manufactured with the optimal parameters was evaluated to investigate changes in physical-mechanical properties under high-temperature conditions. Results indicated that the addition of retardants led to a decrease in mechanical properties. In comparison to the control group, LVL composites impregnated with two retardants exhibited a higher limited oxygen index and longer fireproof time, with the effects of ammonium polyphosphate (APP) surpassing those of borax (BX). The optimal manufacturing parameters were a hot-pressing temperature of 140°C, a hot-pressing time of 1.3 min/mm, and concentrations of 15% for both retardant types. As the temperature increased, the mechanical properties of LVL manufactured with the optimal parameters decreased noticeably. However, under the conditions of a temperature of 200°C and a treatment time of 90 min, the mechanical properties of LVL composites still met the LVL-32P grade proposed in LVL handbook.

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“…In Poland, LVL is made from pine and spruce [6]. Defects in LVL are evenly distributed because knots are limited to a single sheet of veneer [7]. In the case of LVL production, wood resources are used efficiently.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Numerical Analyses of Steel-timber Composite Beams with LVL Slabs

Strzelecka,

Polus,

Chybiński

2023

Civil and Environmental Engineering Reports

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Recently conducted studies have shown that significant benefits are to be gained by joining steel beams and timber slabs. Steel-timber composite beams present a sustainable solution for the construction industry because of their high strength and stiffness, and lower carbon footprint and self-weight than steel-concrete composite beams. The behaviour of steel-timber composite beams is still being investigated to reduce knowledge gaps. This paper presents theoretical and numerical analyses of steel-timber composite beams consisting of steel girders and laminated veneer lumber slabs. The elastic and plastic resistance to bending were estimated analytically based on the elastic analysis and the rigid-plastic theory. The impact of the composite action, the LVL slab thickness, the cross-section of a steel girder and the steel grade on resistance to bending was evaluated. The load-deflection curve of the composite beam was obtained using a 2D finite element model, in which timber failure was captured using the Hashin damage model. The results of the numerical simulation were in good agreement with the ones of the theoretical analyses.

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Size effects on the bending strength of Chinese larch pine laminated veneer lumber

Cited by 9 publications

References 16 publications

Experimental evaluation of the dowel-bearing strength of laminated flattened-bamboo lumber perpendicular to grain

Experimental evaluation of the dowel-bearing strength of laminated flattened-bamboo lumber perpendicular to grain

Research on mechanical properties and fire resistance of flame- retardant laminated veneer lumber fabricated with fast-growing Poplar

Theoretical and Numerical Analyses of Steel-timber Composite Beams with LVL Slabs

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