Features
Timber Design | Design of Tapered and Curved Members
Your options in timber design are diverse. You can consider cut-to-grain angles, transverse tension stresses, and volume-dependent radii of curvature for tapered and curved members. To design the area of the grain cut, the strength is adjusted accordingly in the case of bending tension or bending pressure. In order to also allow you to perform a stability analysis with the equivalent member method, the height to determine the effective and lateral-torsional buckling lengths is set at a distance of 0.65 × h to the actual design point.
Timber Design | Support Pressure Design for Internal and External Supports
Here you have a free choice. You can perform the support pressure design at any point for the loading in the y- and z-directions of a cross-section. You are free to differentiate between inner and outer supports. A factor kc,90 for the pressure perpendicular to the grain can be user-defined (for example, 1.75 for glued-laminated timber). If allowed, the support length is increased automatically according to the standard specifications. This allows you to achieve a more efficient design with minimum effort.
Timber Design | Consideration of Different Effective Lengths in Fire Design
There is often no fire resistance design for the lateral supports of a structure. Would you like to handle this differently in your project? In order to consider this in the calculation, you can define other equivalent member lengths for the fire situation.
Timber Design | Consideration of Lateral-Torsional Bracing Position
What happens when there is a downwind? The topside lateral-torsional bracing is not applied to reduce the effective lengths and lateral-torsional buckling lengths.
Timber Design | Detailed Documentation of Performed Design Checks
Dlubal Software just makes everything a little easier. The performed design checks of the design standard are displayed in a clear way. A design criterion is determined for each design check. Furthermore, the program deliver the design details displayed in a structured way, including the initial values, the intermediate results, and the final results. An information window in the design details shows you the calculation process with the applied formulas, standard sources, and results in great detail.
Timber Design | Result Filter by Limit State
Are you still looking for the design? The design checks are available in tabular form in the Timber Design add-on. Moreover, the program can also show you the distribution of the design ratios graphically. Extensive filter options are available for you in the table as well as in the graphical output, and you can use them to display the desired design checks by limit state or design type.
Timber Design | Manual Adjustment of Reference Lengths and Segmentation by Direction
Did you know? You can individually define the reference lengths to be considered in the calculation of the deflection limit value and the segments to be checked, depending on the direction. For this, define design supports at the intermediate nodes of a member and assign them to the respective direction for the deformation analysis. In the resulting segments, you can also define a precamber for each direction and segment.
Timber Design | Consideration of Notch
Use the member cross-section reductions to consider the start, internal, or end notches of a beam. The beam reduction is thus taken into account in the calculation of the load-bearing capacity. However, this does not apply to the stiffness.
Timber Design | Graphical Display of Mode Shape for Lateral-Torsional Buckling Analysis
Did you use the eigenvalue solver of the add-on to determine the critical load factor within the stability analysis? If so, you can then display the governing mode shape of the object to be designed as a result. The eigenvalue solver is available here for the lateral-torsional buckling analysis, depending on the design standard used.
Timber Design | Torsion Design According to US Standard ANSI/AWC NDS
Is there torsion? In this case, you can decide how to perform the design. You have the following options:
- Allow further design if shear stress due to torsion does not exceed limit value
- Design according to Timber Construction Manual, 4.6
- Ignoring torsion
Shear Force Reduction
For design supports, you can take into account a shear force reduction. This allows you to perform the shear design with the governing shear force at a distance of the beam height from the support edge.
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