Parameterization equations for the nonlinear connection slip applied to the anisotropic embedment behavior of wood

“…Therefore, while making calculation reduced width of sheathing should be used. The reduced width is determined taking into account that the values of the greatest longitudinal stresses for the actual and reduced section are equal [4].…”

Section: Methodsmentioning

confidence: 99%

“…Despite the fact that traditionally a rigid glue joint is used at the border between the rib and the sheathing [3,4], a number of experimental -theoretical studies [5][6][7][8] have shown that it is reasonable to take sheathing into account when fastening it to the ribs, modern bonded joints being used. The use of joints with increased resistance to longitudinal shear [9] allows their use as an alternative to adhesive joints [10,11].…”

Section: Introductionmentioning

confidence: 99%

The wood composite ribbed panels on mechanical joints

Лабудин

Popov

Stolypin³

et al. 2019

E3S Web Conf.

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Structures in the form of ribbed panels with sheathings from sheet materials are used in construction of buildings and structures of various purposes: civil, industrial, agricultural, etc. Panels are universal enclosures and supporting structures, they can be used as coverings, floors, walls. Ribbed coating slabs simultaneously perform the functions of roof purline, floorboards, sheathing, provide heat and sound protection of the building. They are characterized by unification, high level of factory readiness; the ability to control the strength, sound and heat-insulating properties, and low density of materials used, which allows significantly reducing the cost of laying the foundation of the building. The paper presents the results of investigations of the influence of various parameters on the stress-strain state of panels (type of joints, coefficient of stiffness of the bonded joints, the magnitude of the span, the width of the panel, and the material of anisotropic sheathing).To solve this problem, the well-known solution of the plane stress problem is used (Faylon method), in which the constants of integration are determined as the Fourier series expansion coefficient of contour loads. As a result of numerical researches, reduction coefficients for bendable ribbed wood-composite panels with mechanical joints were obtained.

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“…Studies on the determination and definition of embedment properties in dependency of load to grain angle and for different materials are given in Schweigler et al (2016Schweigler et al ( , 2018Schweigler et al ( , 2019.…”

Section: Theorymentioning

confidence: 99%

Evaluation of parameters influencing the load-deformation behaviour of connections with laterally loaded dowel-type fasteners

Jockwer

Caprio

Jorissen

2021

Wood Material Science & Engineering

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Connections made with laterally loaded dowel-type fasteners are important details in timber structures. According to Eurocode 5, their load-carrying capacity can be calculated with the socalled European Yield Model (EYM) and simplified rules for the determination of slip-moduli are given. The slip modulus is given as a mean value for the serviceability limit state and a simple reduction of slip modulus in the ultimate limit state is given in addition. Despite these simple regulations, it is well known that connections with dowel-type fasteners show a considerable nonlinear load-deformation behaviour with different degrees of ductility. This ductility can enable the load redistribution in complex and statically undetermined structures and allow to achieve higher capacities compared to linear elastic design. In the paper, the deformation behaviour of connections with laterally loaded dowels dowel-type fasteners is studied based on more than 750 test results of bolted connections. The parameters influencing the slip-modulus, ductility ratio, and ultimate deformation are evaluated. It is focused on the effects of these parameters and the resulting variability in deformation behaviour. Recommendations are given on how different levels of ductility and deformation capacity can be achieved in dependency of the spacing of fasteners and other geometrical parameters.

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Parameterization equations for the nonlinear connection slip applied to the anisotropic embedment behavior of wood

Cited by 18 publications

References 24 publications

A serviceability investigation of dowel-type timber connections featuring single softwood dowels

A serviceability investigation of dowel-type timber connections featuring single softwood dowels

The wood composite ribbed panels on mechanical joints

Evaluation of parameters influencing the load-deformation behaviour of connections with laterally loaded dowel-type fasteners

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