Analysis of glued-laminated timber structure during five years of outdoor operation

Kánnár, Antal; Karácsonyi, Zs.; Andor, Krisztián; Csóka, Levente

doi:10.1016/j.conbuildmat.2019.01.234

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…Moreover, as observed by Pousette and Sandberg [28], fluctuating humidity during a five-year experiment can also result in the formation of cracks which can have a crucial influence on wood mechanical strength [29]. Kánnár et al [30] analyzed changes in the mechanical properties of spruce glulam-based structure during 5 years of outdoor exposure under the load. Based on the outcomes, it was found that shear strength and bending strength of beams were significantly lowered.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Storage Conditions on the Strength Characteristic of Glulam Beams

Mirski

Kuliński

Kawalerczyk

et al. 2023

Forests

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Despite many outdoors applications, the number of works aimed to determine the effect of changing conditions on the properties of glulam beams, in particular those produced in non-standard arrangements, is few. Therefore, the aim of this study was to assess changes in flexural strength properties (MOE, MOR) of the beams stored for 30 months in varying conditions. Analyzed variants of pine GLT beams included five-meter-long structural elements reinforced with oak timber, high-quality pine timber and steel rods stored both in the roofed shed outdoors and inside the climatic chamber. Moisture content of the beam varied significantly depending on the placement of the sensors (on the surface or inside the beam). The average modulus of elasticity after 30 months of storage decreased by approx. 7% compared to initial values. The results varied depending on both the assumed beam arrangement and the applied conditions.

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Section: Introductionmentioning

confidence: 99%

The Effect of Storage Conditions on the Strength Characteristic of Glulam Beams

Mirski

Kuliński

Kawalerczyk

et al. 2023

Forests

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“…e results show that the internal force distribution of glulam arches is sensitive to the load distribution. Kánnár et al [13] analyzed the global bending and shear strength of timber structures, finding that the use of thinner lamella enables producing more homogeneous glulam structures. Ostrycharczyk and Malo [4] proposed a radial network pattern as a modification of a radial pattern to improve the performance of the network arch, especially the bending capacity of the arches.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Loading Capacity of Glued‐Laminated Timber Arches Subjected to Vertical Concentrated Loads

Zhou

Liu

et al. 2020

Advances in Civil Engineering

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Glued-laminated timber arches are widely used in gymnasiums, bridges, and roof trusses. However, studies on their mechanical behaviours and design methods are still insufficient. This paper investigates the in-plane loading capacity of circular glued-laminated timber arches made of Douglas fir. Experiments were conducted on four timber-arch models with different rise-to-span ratios under concentrated loads at mid-span and quarter-point locations. The structural responses, failure modes, and loading capacity of the timber arch specimens were obtained. The results show that the timber arches presented symmetric and antisymmetric deformation under mid-point and quarter-point loading conditions, respectively. The downward shifting of the neutral axis of the cross section was observed under mid-point loading condition, which contributes to higher loading capacity compared to that under quarter-point loading condition. The loading condition significantly affects the ultimate loads and the strain distribution in the cross section. Based on the design formula in current standards for timber structures, an equivalent beam-column method was introduced to estimate the loading capacity of the laminated timber arches under vertical concentrated loads. The moment amplification factor in the formula was compared and discussed, and the value provided in the National Design Specification for Wood Construction was recommended with acceptable accuracy.

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Experimental and numerical study on the mechanical behavior of curved glulam structures

Zhao,

Liu

et al. 2024

Eur. J. Wood Prod.

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Analysis of glued-laminated timber structure during five years of outdoor operation

Cited by 6 publications

References 7 publications

The Effect of Storage Conditions on the Strength Characteristic of Glulam Beams

The Effect of Storage Conditions on the Strength Characteristic of Glulam Beams

Experimental Study on Loading Capacity of Glued‐Laminated Timber Arches Subjected to Vertical Concentrated Loads

Experimental and numerical study on the mechanical behavior of curved glulam structures

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