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Wind Simulation & Wind Load Generation

With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.

The generated wind loads acting on these objects can be imported to RFEM or RSTAB.

  1. RX-TIMBER Continuous Beam | Features

    • Design of the following geometrical types:
      • Single-span beams with and without cantilevers
      • Continuous beams with and without cantilevers
      • Hinged girder system (Gerber beams) with and without cantilevers
    • For design according to EC 5 (EN 1995), the following National Annexes are available:
      • Deutschland DIN EN 1995-1-1/NA:2013-08 (Germany)
      • NBN EN 1995-1-1/ANB:2012-07 (Belgium)
      • 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)
      • UNI EN 1995-1-1/NA:2010-09 (Italy)
      • NEN EN 1995-1-1/NB:2007-11 (Netherlands)
      • ÖNORM B 1995-1-1:2015-06 (Austria)
      • PN EN 1995-1-1/NA:2010-09 (Poland)
      • SS EN 1995-1-1 (Sweden)
      • STN EN 1995-1-1/NA:2008-12 (Slovakia)
      • SIST EN 1995-1-1/A101:2006-03 (Slovenia)
      • CSN EN 1995-1-1:2007-09 (Czech Republic)
      • BS EN 1995-1-1/NA:2009-10 (United Kingdom)
    • Automatic generation of wind and snow loads
    • Multiple optional reductions according to the selected standard
    • Simple geometry input with illustrative graphics
    • Free entry of tapered geometries.  Free selection of the grain angle allows for a user-defined design of the compressive and tensile areas for bending
    • Comprehensive and extandable material library
    • Determination of design ratios, support forces, and deformations
    • Color reference scales in result tables
    • Direct data export to MS Excel
    • DXF interface for preparation production documents in CAD
    • Program languages: English, German, Czech, Italian, Spanish, French, Portuguese, Polish, Chinese, Dutch and Russian
    • Verifiable printout report including all required designs. Printout report available in many output languages, for example English, German, French, Italian, Spanish, Russian, Czech, Polish, Portuguese, Chinese or Dutch.
    • Direct import of stp files from various CAD programs
  2. RX-TIMBER Column | Features

    • Design of the following column types:
      • Hinged column, optionally with elastic restraint of head or footing
      • Bracket, optionally with elastic restraint of footing
    • Simple geometry input with illustrative graphics
    • Extensive material library
    • Allocation of the model to service classes and specification of service class categories
    • Detailed settings of the fire resistance design
    • Specification of limit deformation for the serviceability limit state design
    • Determination of design ratios, support forces, and deformations
    • For design according to EC 5 (EN 1995), the following National Annexes are available:
      • Deutschland DIN EN 1995-1-1/NA:2013-08 (Germany)
      • NBN EN 1995-1-1/ANB:2012-07 (Belgium)
      • 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)
      • UNI EN 1995-1-1/NA:2010-09 (Italy)
      • NEN EN 1995-1-1/NB:2007-11 (Netherlands)
      • ÖNORM B 1995-1-1:2015-06 (Austria)
      • PN EN 1995-1-1/NA:2010-09 (Poland)
      • SS EN 1995-1-1 (Sweden)
      • STN EN 1995-1-1/NA:2008-12 (Slovakia)
      • SIST EN 1995-1-1/A101:2006-03 (Slovenia)
      • CSN EN 1995-1-1:2007-09 (Czech Republic)
      • BS EN 1995-1-1/NA:2009-10 (United Kingdom)
    • Automatic generation of wind and snow loads
    • Multiple optional reductions according to the selected standard
    • Direct data export to MS Excel
    • Program languages: English, German, Czech, Italian, Spanish, French, Portuguese, Polish, Chinese, Dutch and Russian
    • Verifiable printout report including all required designs. Printout report available in many output languages, for example English, German, French, Italian, Spanish, Russian, Czech, Polish, Portuguese, Chinese or Dutch.
    • Direct import of stp files from various CAD programs
  3. RX-TIMBER Purlin | Features

    • Design of the following geometrical types:
      • Single-span beams with and without cantilevers
      • Continuous beams with and without cantilevers
      • Hinged girder system (Gerber beams) with and without cantilevers
    • 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
    • For design according to EC 5 (EN 1995), the following National Annexes are available:
      • Deutschland DIN EN 1995-1-1/NA:2013-08 (Germany)
      • NBN EN 1995-1-1/ANB:2012-07 (Belgium)
      • 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)
      • UNI EN 1995-1-1/NA:2010-09 (Italy)
      • NEN EN 1995-1-1/NB:2007-11 (Netherlands)
      • ÖNORM B 1995-1-1:2015-06 (Austria)
      • PN EN 1995-1-1/NA:2010-09 (Poland)
      • SS EN 1995-1-1 (Sweden)
      • STN EN 1995-1-1/NA:2008-12 (Slovakia)
      • SIST EN 1995-1-1/A101:2006-03 (Slovenia)
      • CSN EN 1995-1-1:2007-09 (Czech Republic)
      • BS EN 1995-1-1/NA:2009-10 (United Kingdom)
    • 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, Chinese, Dutch and Russian
    • Verifiable printout report including all required designs. Printout report available in many output languages, for example English, German, French, Italian, Spanish, Russian, Czech, Polish, Portuguese, Chinese or Dutch.
    • Direct import of stp files from various CAD programs
  4. RX-TIMBER Brace | Features

    • Design of the following roof types:
      • Monopitch roof
      • Duopitch roof
      • Curved roof
    • All roof shapes allow for a free selection of stiffening diagonals. The following types are available:
      • Falling diagonals
      • Rising diagonals
      • Crossing diagonals with verticals
      • Crossing diagonals without verticals
      • Crossing diagonals with steel strips (ties)
    • Consideration of window rows in the ridge by selecting an inner intermediate part.
    • For design according to EC 5 (EN 1995), the following National Annexes are available:
      • Deutschland DIN EN 1995-1-1/NA:2013-08 (Germany)
      • NBN EN 1995-1-1/ANB:2012-07 (Belgium)
      • 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)
      • UNI EN 1995-1-1/NA:2010-09 (Italy)
      • NEN EN 1995-1-1/NB:2007-11 (Netherlands)
      • ÖNORM B 1995-1-1:2015-06 (Austria)
      • PN EN 1995-1-1/NA:2010-09 (Poland)
      • SS EN 1995-1-1 (Sweden)
      • STN EN 1995-1-1/NA:2008-12 (Slovakia)
      • SIST EN 1995-1-1/A101:2006-03 (Slovenia)
      • CSN EN 1995-1-1:2007-09 (Czech Republic)
      • BS EN 1995-1-1/NA:2009-10 (United Kingdom)
    • Simple geometry input with illustrative graphics
    • Automatic generation of wind loads
    • Automatic creation of required combinations for the ultimate and serviceability limit state as well as fire resistance design
    • Free definition of the load cases to be used
    • Extensive material library
    • 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
    • DXF interface for preparation of production documents in CAD
    • Program languages: English, German, Czech, Italian, Spanish, French, Portuguese, Polish, Chinese, Dutch and Russian
    • Verifiable printout report including all required designs. Printout report available in many output languages, for example English, German, French, Italian, Spanish, Russian, Czech, Polish, Portuguese, Chinese or Dutch.
    • In the ultimate limit state design, the stiffness of the hinge is divided by the partial safety factor and in the serviceability limit state design calculated using the mean stiffnesses. The limit values for the ultimate and the serviceability limit state can be defined separately.
  5. .8 Control Parameters

    RX-TIMBER Brace | Design

    In RX-TIMBER Brace, the following calculation settings are available:

    • Selection of designs to be performed
    • Optional results of support forces and deformations
    • Adjustment of recommended limit values for deformation analyses in the ultimate and the serviceability limit state design
    • Free definition of parameters for the fire resistance design performed according to the simplified method
    • Consideration of material nonlinearities (failing members)

    You can define the design type to be performed in the Control Parameters window.

  6. .1 General Data

    RX-TIMBER Brace | Input

    The geometry is entered by means of templates as in all other programs of the RX‑TIMBER family. By selecting the roof structure you define the base geometry which can be adjusted by user-defined settings. You can select the relevant timber grade of the material from the material library. All material grades for glulam, hardwood, poplar and softwood timber specified in EN 1995‑1‑1 are available. Furthermore, it is possible to generate a strength class with user-defined material properties and thus extend the library.

    Since the stiffening bracing includes also the steel cross-sections, current steel grades are integrated in the library as well. Therefore, there are also the rolled and welded cross-sections available. Stiffening of coupling elements can be considered in Table 1.5 Connections as translational and rotational spring stiffnesses. The program handles these stiffnesses with a stiffness divided by the partial safety factor for the design of the bearing capacity and with the mean values of the stiffness for the serviceability limit state design. The loading can be entered directly as a lateral load (equivalent lateral load) resulting from a truss girder design.

    Wind load is applied automatically to all four sides of the structure. Additionally, you can specify user-defined loads, for example concentrated loads from columns (buckling load). According to the generated loads, the program automatically creates combinations for the ultimate and serviceability limit state as well as for the fire resistance in the background. The generated combinations can be considered or adjusted by user-defined specifications.

  7. RX-TIMBER Roof | Features

    • Design of the following roof types:
      • Flat roof
      • Monopitch roof
      • Duopitch roof (symmetrical / asymmetrical)
    • Definition of any additional support and free selection of degrees of freedom (additional free definition of translational and rotational spring stiffness of supports and hinges)
    • Arrangement of up to five collar/tie beams including intermediate support for duopitch roof
    • Automatic generation of wind and snow loads
    • Automatic generation of required combinations for the ultimate and serviceability limit state as well as fire resistance design (additional definition of several member and nodal loads)
    • For design according to EC 5 (EN 1995), the following National Annexes are available:
      • Deutschland DIN EN 1995-1-1/NA:2013-08 (Germany)
      • NBN EN 1995-1-1/ANB:2012-07 (Belgium)
      • Bulgaria BDS EN 1995-1-1/NA:2012-02 (Bulgaria)
      • 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)
      • Ireland I.S. EN 1995-1-1/NA:2010-03 (Ireland)
      • UNI EN 1995-1-1/NA:2010-09 (Italy)
      • NEN EN 1995-1-1/NB:2007-11 (Netherlands)
      • ÖNORM B 1995-1-1:2015-06 (Austria)
      • PN EN 1995-1-1/NA:2010-09 (Poland)
      • SS EN 1995-1-1 (Sweden)
      • STN EN 1995-1-1/NA:2008-12 (Slovakia)
      • SIST EN 1995-1-1/A101:2006-03 (Slovenia)
      • CSN EN 1995-1-1:2007-09 (Czech Republic)
      • BS EN 1995-1-1/NA:2009-10 (United Kingdom)
      • Cyprus CYS EN 1995-1-1/NA:2011-02 (Cyprus)
    • Simple geometry input with illustrative graphics
    • Input of tapered cantilevers with cut-to-grain on the bottom side of rafters
    • Extensive material library that can be extended by user-defined materials
    • Determination of design ratios, support forces, and deformations
    • Color reference scales in result tables
    • Direct data export to MS Excel
    • Program languages: English, German, Czech, Italian, Spanish, French, Portuguese, Polish, Chinese, Dutch and Russian
    • Verifiable printout report including all required designs. Printout report available in many output languages, for example English, German, French, Italian, Spanish, Russian, Czech, Polish, Portuguese, Chinese or Dutch.
  8. Window 1.1 General Data

    RX-TIMBER Roof | Input

    There are various options available for modeling a roof. Graphical representations facilitate the geometry input. Modifications are updated automatically.

    In addition, it is possible to consider cross‑section weakening on supports. Optionally, you can define if the design of support pressure on the rafter side should be performed.

    Permanent loads (for example roof structure) can be entered using the comprehensive and extendable material library. Loads due to cantilevers and collars/ties can be entered separately. The integrated generators allow for comfortable generation of various wind and snow load cases. You can manually add any concentrated and distributed loads.

    For checking purposes, the load cases are displayed graphically and included in automatically generated combinations according to EC 5. Thus, the input is reduced to a minimum. For stability analysis and serviceability limit state design, you can change the data manually, for example to ignore the SLS of cantilevers (roof overhang).

  9. RX-TIMBER Roof | Results

    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. It is possible to display the distribution of internal forces for each x-location of the beam in a separate graphical window. Here, both the deformations and the individual internal forces can be displayed.

    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.

  10. RX-TIMBER frame | Features

    • Design of the following geometrical types:
      • Symmetrical / asymmetrical
      • Half-frame
      • Column sloping inside / outside
      • Intermediate piece with / without
    • Direction of lamellas can be defined as parallel to inner or outer edge
    • For design according to EC 5 (EN 1995), the following National Annexes are available:
      • Deutschland DIN EN 1995-1-1/NA:2013-08 (Germany)
      • NBN EN 1995-1-1/ANB:2012-07 (Belgium)
      • 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)
      • UNI EN 1995-1-1/NA:2010-09 (Italy)
      • NEN EN 1995-1-1/NB:2007-11 (Netherlands)
      • ÖNORM B 1995-1-1:2015-06 (Austria)
      • PN EN 1995-1-1/NA:2010-09 (Poland)
      • SS EN 1995-1-1 (Sweden)
      • STN EN 1995-1-1/NA:2008-12 (Slovakia)
      • SIST EN 1995-1-1/A101:2006-03 (Slovenia)
      • CSN EN 1995-1-1:2007-09 (Czech Republic)
      • BS EN 1995-1-1/NA:2009-10 (United Kingdom)
    • Simple geometry input with illustrative graphics
    • 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
    • Possibility to define load cases and load applications
    • 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
    • DXF interface for preparation of production documents in CAD
    • Program languages: English, German, Czech, Italian, Spanish, French, Portuguese, Polish, Chinese, Dutch and Russian
    • Verifiable printout report including all required designs. Printout report available in many output languages, for example English, German, French, Italian, Spanish, Russian, Czech, Polish, Portuguese, Chinese or Dutch.

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