Structural Analysis and Design of Timber Structures | Dlubal Software

As an alternative to the equivalent member method, this article describes the possibility to determine the internal forces of a wall at risk of buckling according to the second-order analysis, taking imperfections into account, and to subsequently perform the cross-section design for bending and compression.

In diesem Beitrag wird der Nachweis mit dem Ersatzstabverfahren nach [1] Kapitel 6.3.2 am Beispiel der in Teil 1 vorgestellten knickgefährdeten Brettsperrholzwand durchgeführt. Dabei wird der Knicknachweis als Druckspannungsnachweis mit einer abgeminderten Druckfestigkeit geführt. Dazu wird ein Knickbeiwert k_c ermittelt, welcher vor allem von der Schlankheit des Bauteils und der Lagerungsart abhängig ist.

Basically, you can design the structural components made of cross-laminated timber in the RF-LAMINATE add-on module. Since the design is a pure elastic stress analysis, it is necessary to additionally consider the stability issues (flexural buckling and lateral-torsional buckling).

• Design of hinged connections
• Biaxial inclination of the connected member (for example, a jack rafter joint)
• Connection of any number of members on one node for the type "Main member only"
• Screw diameter 6 mm – 12 mm
• Automatic check of the minimum distance between screws
• Optional free definition of screw distances
• Transfer of eccentricity from RFEM/RSTAB
• Crosswise or parallel screw alignment
• Definition of up to 16 screws in a row
• Graphical visualization of joints in the add-on module and in RFEM/RSTAB
• Performing all required designs

 

• 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 states, 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:
  • Germany DIN EN 1995-1-1/NA:2013-08 (Germany)
  • NBN EN 1995-1-1/ANB:2012-07 (Belgium)
  • 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)
  • 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 (the United Kingdom)
  • 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, and Dutch.

• 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:
  • 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 (the 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 states, 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 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, and Dutch.