Interesting customer projects designed with the structural analysis programs by Dlubal Software.
Design of Coupled Purlins and Continuous Beams
RX‑TIMBER Purlin performs the ultimate and serviceability limit state design as well as fire resistance design of trusses according to the standard EN 1995‑1‑1 or DIN 1052:2008‑12.
In addition to the automatic and exact load generation including the corresponding combinations of the respective load cases, the program determines the coupling elements required in the coupling zone.
- Design of the following geometry types:
- Single-span beam with and without cantilever
- Continuous beam with and without cantilever
- Hinged girder system (Gerber) with and without cantilever
- Automatic generation of wind and snow loads
- Automatic creation of required combinations for the ultimate and serviceability limit state as well as fire resistance design
- In EC 5 (EN 1995), the following National Annexes are currently available:
- BS EN 1995-1-1/NA:2009-10 (United Kingdom)
- ÖNORM B 1995-1-1:2015-06 (Austria)
- NBN EN 1995-1-1/ANB:2012-07 (Belgium)
- CSN EN 1995-1-1:2009-07 (Czech Republic)
- DK EN 1995-1-1/NA:2011-12 (Denmark)
- SFS EN 1995-1-1/NA:2007-11 (Finland)
- NF EN 1995-1-1/NA:2010-05 (France)
- DIN EN 1995-1-1/NA:2013-08 (Germany)
- UNI EN 1995-1-1/NA:2010-09 (Italy)
- NEN EN 1995-1-1/NB:2007-11 (Netherlands)
- PN EN 1995-1-1/NA:2010-09 (Poland)
- STN EN 1995-1-1/NA:2008-12 (Slovakia)
- SIST EN 1995-1-1/A101:2006-03 (Slovenia)
- SS EN 1995-1-1 (Sweden)
- Consideration of optimization options by user-specifications according to the respective standard:
- Shear force reduction of single loads near support
- Shear force reduction of load introduction at the cross-section top point
- Moment redistribution in support zone
- Reduction of torsional stress by means of user-defined entry of moment
- Increase of bending stiffnesses for flat-ended or edgewise bending strains
- Simple geometry input with illustrative graphics
- Extensive material library for both standards
- Optional extension of material library by further materials
- Extensive library of permanent loads
- Allocation of framework to service classes and specification of service class categories
- Determination of design ratios, support forces and deformations
- Info icon indicating successful or failed design
- Color reference scales in result tables
- Direct data export to MS Excel
- Program languages: English, German, Czech, Italian, Spanish, French, Portuguese, Polish, and Russian
- Verifiable printout report with all required designs available in many languages, for example English, German, French, Italian, Spanish, Russian, Czech, Polish, Portuguese, Dutch
- Direct import of stp files from various CAD programs
- Design of the following geometry types:
There are various options available for beam modeling. A roof type determines the exact purlin location for wind and snow generation.
Two beam types are available: Continuous beam and Purlin. If you select the continuous beam, it is possible to define several release conditions of the beam. If you select the purlin, it is not possible to modify release conditions. In this case, the calculation considers a double cross-section in the coupling zone. In addition, several coupling elements become available:
- Nails (prebored/not prebored)
- Specific dowels
- Screw connection with fastening system WT from SFS intec
- User-defined specification due to characteristic bearing capacity
You can select the relevant timber grade of the material from the material library. All material grades for glulam, hardwood and softwood timber specified in EC 5 are available. Furthermore, it is possible to generate a strength class with user-defined material properties and thus extend the library. Permanent loads (for example roof structure) can also be entered using the comprehensive and extendable material library.
Generators integrated in RX-TIMBER Purlin allow for comfortable generation of various wind and snow load cases. By clicking the information buttons, the map of wind and snow zones for the relevant country is displayed. Load cases can be checked graphically.
However, it is possible to enter load specifications manually. According to the generated loads, the program automatically creates combinations for the ultimate and the serviceability limit state as well as for the fire resistance in the background.
The design analyzes tension and compression along the grain, bending, bending and tension or compression as well as shear due to shear force with and without torsion. The analyses are performed at the level of stress design values. For the design of structural components with a risk for buckling and lateral buckling, the program considers axial compression, bending with and without compressive force as well as bending and tension.
The deflection in the characteristic and quasi-permanent design situations is determined for inner spans and cantilevers. Separate design cases allow for a flexible analysis of specific actions as well as for individual stability analyses. You can define the design type to be performed in the Control Parameters window.
After the calculation, the results of performed designs including all required intermediate values are displayed in clearly arranged result tables sorted by various criteria. Since the program displays the intermediate values in detail, transparency of all designs is ensured. Furthermore, it is possible to display the distribution of internal forces for each x-location of the beam in a separate graphical window where you can display the deformations and the individual internal forces.
Limit state designs are represented on members and the relevant fastener. In this way, it is possible to retrace each value determined for calculation. Designs with design details and selected result diagrams can be added in the printout report providing clearly arranged documentation. The printout report can include graphics, descriptions, drawings, and more. Moreover, it is possible to select which calculation data will be covered in the printout.
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