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KB 000787 | Considering Elastic Slip Modulus of Timber Connection
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Description
If a timber connection is designed as shown in Figure 01, the torsional spring stiffness resulting from the connection can be considered. This can be determined by using the modulus of displacement of the fastener and the polar moment of inertia of the connection, neglecting the area of the fastener.
Keywords
Dlubal Knowledge Base flexibility Rotational spring stiffness Slip Modulus Dlubal KB Knowledge Base Technical Contribution
Reference
Links
- Useful Tools for Fast Generation of Structures in RFEM
- Useful Tools for Fast Generation of Structures in RSTAB
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Considering the Elastic Slip Modulus of a Timber Connection
For a timber connection, as shown in Figure 01, you can take into account the torsional spring rigidity (spring stiffness for rotation) of the connections. You can determine it by means of the slip modulus of the fastener and the polar moment of inertia of the connection.
The cross-section resistance design analyzes tension and compression along the grain, bending, bending and tension/compression as well as the strength in shear due to shear force.
The design of structural components at risk of buckling or lateral-torsional buckling is performed according to the Equivalent Member Method and considers the systematic axial compression, bending with and without compressive force as well as bending and tension. Deflection of inner spans and cantilevers is compared to the maximal allowable deflection.
Separate design cases allow for a flexible and stability analysis of members, sets of members, and loads.
Design-relevant parameters such as the stability analysis type, member slendernesses, and limit deflections can be freely adjusted.
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