Abstract
Building constructions made of cross-laminated timber become more and more widespread. Experience in the timber structures design and operation for various purposes confirms the feasibility of their use. Recently, the construction of prefabricated cross-laminated timber houses has become especially widespread. The problem solution of cross-laminated timber panels calculation by means of a finite element method with the material`s reduced mechanical characteristics application is offered in this article. The specified formulas for definition of the reduced geometrical and mechanical characteristics of cross-laminated timber panels` various types, including those made of combined cross-laminated timber, are resulted. The algorithm of cross-laminated timber panels calculation by means of a finite element method is resulted. The possibility of using flat finite elements taking into account orthotropic properties for the calculation of cross-laminated timber panels using the elasticity above modulus according to the above method, adjusting the Poisson's ratios so as to preserve the condition of elastic potential in timber, is reasoned.
Highlights
Experience in the timber structures design and operation for various purposes confirms the feasibility of their use [1]
This is facilitated by the use of simpler tools in the construction, and the panels theFEMlves have less weight, which affects the more economical foundations design and reduces costs during installation and transportation
The reduced inertia moment of the cross section perpendicular to the y-axis for a cross-laminated timber panel made of boards of the same strength class is determined by the formula: І у,ef І у,i,90 Еу І у,i,0 аі2 Ау,і,90 Еу аі2 Ау,і,0, (10)
Summary
Experience in the timber structures design and operation for various purposes confirms the feasibility of their use [1]. The reduced cross-sectional area across the x-axis (the axis of force application along the fibers of the boardsouter layers) for a cross-laminated timber panel made of boards of the same strength class is determined by the formula: Ax,ef Ax,i Ay,i Еy , (2). The reduced cross-sectional area across the axis y (the axis of force application across the fibers of the boardsouter layers) for a panel of crosslaminated timber made of boards of the same strength class is determined by the formula: Aу,ef Ax,i Еy Ay,i , (4). The reduced inertia moment of the cross section perpendicular to the y-axis for a cross-laminated timber panel made of boards of the same strength class is determined by the formula:. This modeling can greatly simplify the creation of calculation schemes
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