Buckling of Oriented Strand Board Webbed Wood I-Joists

Zhu, Eryu; Guan, Zhong; Rodd, P.D.; Pope, David

doi:10.1061/(asce)0733-9445(2005)131:10(1629)

Cited by 28 publications

(14 citation statements)

References 6 publications

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“…(1) Eigenvalue buckling analysis is done first, in order that eigenvalue buckling modes and usually overestimated buckling loads of structure can be obtained from this analysis [12]. The control function for eigenvalue buckling analysis can be stated as follows:…”

Section: Analysis Methodsmentioning

confidence: 99%

Research on Distribution and Magnitude of Initial Geometrical Imperfection Affecting Stability of Suspen-Dome

Guo¹

2011

Volume 7 Number 4

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Stability calculation is the main content during analysis of suspen-dome. To ensure the analysis results, with consideration initial geometrical imperfection, estimate structural stability reliably, looking for the worst distribution and magnitude of initial geometrical imperfection during stability calculation is the focus in this paper. First, a single-layer latticed shell and three types of suspen-domes are selected to study the influence of initial geometrical imperfection distribution on their overall stability by consistent imperfection mode method. Then, the influence of initial geometrical imperfection magnitude on structural stability was studied by the same method. Using calculation results from above numerical models, different distribution of initial geometrical imperfection, which is adopted during stability calculation, is listed, and the load-displacement curves which can reflect structural overall stability are drawn. Results show that the stability factor is lower when the first antisymmetric buckling mode is adopted as initial geometrical imperfection distribution and its magnitude lays between 1/500 and 1/300 structural span, and structural stiffness is also lower. The conclusions derived from the paper are applicable to similar practical structure.

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Section: Analysis Methodsmentioning

confidence: 99%

Research on Distribution and Magnitude of Initial Geometrical Imperfection Affecting Stability of Suspen-Dome

Guo¹

2011

Volume 7 Number 4

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“…However, it could not completely reflect the true state of wood loaded in compression. Zhu et al (2005) developed a model to simulate OSB webbed wood I-joists, assuming the OSB to be an elastic plastic material. Such an approach was shown to be reliable in comparison with the results of experimental investigation and numerical analysis.…”

Section: Introductionmentioning

confidence: 99%

Stress-strain Constitutive Relation of OSB under Axial Loading: An Experimental Investigation

Chen¹,

He²

2017

BioResources

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The objective of this study was to establish the stress-strain empirical mode of oriented strand board (OSB) with random surfaces and oriented core 0° pattern (R/0°/R). The OSB specimens were loaded along the longitudinal (0°), diagonal (45°), and transverse (90°) directions of plates. The loading direction had a significant effect on the behavior of OSB. The OSB in compression exhibited high non-linear elastic behavior up to failure, while it expressed linear behavior when loaded in tension. Four types of failure modes under compression were included: end cracks between flakes, central cracks between flakes, diagonal shear failure, and surface folding. Most of the specimens in tension failed in tensile failure suddenly without plastic deformation. A refined empirical model was suggested and found to be in good agreement with the experimental data. The results provided useful information for modeling various structures containing OSB.

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“…For instance, providing horizontal support at the top flanges can prevent lateral instability. Local buckling of the web is usually eliminated by using filler blocks at the locations of heavily concentrated loads that are acting on the beam (Zhu et al 2005). Currently, the I-joist manufacturing companies use several wood species and wood-based composite materials.…”

Section: Introductionmentioning

confidence: 99%

Development of Veneer-based Corrugated Composites, Part 2: Evaluation of Structural Joints and Applications

Dénes¹,

Lang²,

McNeel³

et al. 2017

BioResources

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This publication introduces and describes the mechanical properties of a newly developed structural composite using corrugated veneer panels as core material. Prior to this study, rejected hardwood veneers and veneer residues (side-clippings) were converted into three-dimensional panels, and the basic physical and mechanical properties were investigated through the testing of similar, but non-corrugated products. This study focuses on the application of I-joist web elements, although other application possibilities are also mentioned. Different web to web and web to flanges joints were configured and tested for their tension and shear strength resistance. The load-bearing capacity was evaluated using standard structural size prefabricated members. The I-joists that had corrugated web panels showed an improved load carrying capacity under concentrated loads. Buckling failure, which is common in deep straight web panels of oriented strand board (OSB), or plywood, under concentrated loads could not be observed.

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Buckling of Oriented Strand Board Webbed Wood I-Joists

Cited by 28 publications

References 6 publications

Research on Distribution and Magnitude of Initial Geometrical Imperfection Affecting Stability of Suspen-Dome

Research on Distribution and Magnitude of Initial Geometrical Imperfection Affecting Stability of Suspen-Dome

Stress-strain Constitutive Relation of OSB under Axial Loading: An Experimental Investigation

Development of Veneer-based Corrugated Composites, Part 2: Evaluation of Structural Joints and Applications

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