Extranet | News | Support | Contact us | Legal Notice
Deutsch | English | Français | Español | Português | Italiano | Česky | Polski | Русский  
11/ 23/ 2015


Related programs

Products - Overview


Frame Joints for Frames According to
EN 1993-1-8 and DIN 18800 

The RSTAB add-on module FRAME-JOINT Pro creates and classifies bending-resistant, bolted connections between columns and horizontal beams.
The rigid bolt connections are designed by the ultimate load method according to
Eurocode 3 or DIN 18800. 
Furthermore, it is possible to apply stiffeners, supplementary web plates as well as backing plates.  In addition, you can check the geometrical feasibility of connections with respect to the size of the wrench used for tightening screws.


  • Design of knee joints, T-joints, cross joints and connections including continuous columns with I-shaped cross-sections
  • Import of geometrical and load data from RSTAB or manual specification of connection (for example for recalculating without an available RSTAB model)
  • Flush top connections or connections with bolt row in extension
  • Design for positive and negative frame joint moments
  • Different inclinations for horizontal beams right and left as well as application to frames of duopitch and monopitch roofs
  • Take into account additional flanges in horizontal beam, for example for cross-sections with tapering
  • Symmetrical and asymmetrical T-joints or cross joints
  • Connection on both sides with different cross-section depth right and left
  • Automatic suggestion of bolt layout and required stiffening
  • Optional design mode with possibility to specify all bolt spacing, welds and sheet thicknesses
  • Check the screwability with adjustable dimensions of used wrenches
  • Classification of connection by stiffness with calculating the connection's spring stiffness to take it into account for calculation of internal forces
  • Check up to 45 individual designs (components) of connection
  • Automatic determination of governing internal forces for each single design
  • Graphical output of connection in rendering mode with specifications of material, sheet thicknesses, welds, bolt spacing and all dimensions for construction
  • Integrated and flexibly extendable settings for national annexes according to EN 1993-1-8
  • Automatic conversion of internal forces from framework analysis in respective sections, also in case of eccentric member connections
  • Automatic determination of initial stiffness Sj,ini of connection
  • Detailed control of all dimensions concerning plausibility including specifications of input limits (for example for edge distances and hole spacing)
  • Optional introduction of compression forces into column by means of contact
  • Possibility to update cross-section depth of horizontal beam for taper connections subsequent to optimization of connection geometry in FRAME-JOINT Pro


With FRAME-JOINT Pro you can dimension and design connections for structures calculated in RSTAB. If no RSTAB model is available, you can enter geometry and loading also by manual definitions, for example to check external calculations.
In RSTAB you select the node that you want to design. All connected members are recognized automatically and the connection type is assigned. Depending on the connection type, you then define further details for ribs, backing plates, web plates, bolts, welds and hole spacing by additional input options. The loads are entered by selecting the load cases, groups and combinations. If you work in the "preliminary design" mode, FRAME-JOINT Pro will suggest appropriate layouts after the first calculation run. When the relevant layout is selected, the program shows all designs both in detailed tables and various graphics.


FRAME-JOINT Pro performs the following designs according to
EN 1993-1-8 or DIN 18800:
  • Beam end plate and column flange according to plastic hinge theory
  • Bolts for tension (including contact forces)
  • Bolts for shearing
  • Tension force introduction in column web and beam web
  • Buckling design for gusset plate
  • Shear design for gusset plate 
  • Introduction of compressive force into column web and buckling design for web plate
  • If required:
    • Design of diagonal stiffener
    • Web stiffener
    • Column web strengthening
  • Introduction of compressive force in horizontal beam
  • Design of welds


First, the governing designs for the column and the horizontal beam are shown together with the geometry of the connection displayed in a table. In further results tables you can check all important design details like lengths of flow lines, load bearing capacity of screws, stresses in welds or stiffness of connections. All connections are visualized in a 3D rendering graphic. Dimensions, material properties and welds significant for the construction of the connection are immediately displayed and can be included in the printout.
The connections can be represented graphically in the add-on module FRAME-JOINT Pro or directly in the RSTAB model. All graphics can be integrated in the RSTAB printout report or printed directly. An optimal visual check is already possible in the design phase due to the result output that is true to scale.


You can find more information about FRAME-JOINT Pro here:

Download free trial versions of our programs.

Download trial version 
Request for detailed product brochure and trial versions of our products.

Request information

Price Information

Net prices in USD
For use in United States
First License
FRAME-JOINT Pro 1,120.00
Next License
FRAME-JOINT Pro 504.00
Upgrades FRAME-JOINT Pro
FRAME-JOINT --> FRAME-JOINT Pro 8.xx 670.00
1.1 General Data
1.1 General Data
1.2 Cross-Sections
1.2 Cross-Sections
1.3.1 Column - Part 1
1.3.1 Column - Part 1
1.3.2 Column - Part 2
1.3.2 Column - Part 2
1.4.2 Right Beam - Part 2
1.4.2 Right Beam - Part 2
1.4.1 Left Beam - Part 1
1.4.1 Left Beam - Part 1
Wrench dimensions
Wrench dimensions
1.6 Loads
1.6 Loads
2.1 Summary and Geometry
2.1 Summary and Geometry
2.2.1 Design - Column
2.2.1 Design - Column
2.2.2 Design - Left Side
2.2.2 Design - Left Side
2.4 Graphics - whole connection
2.4 Graphics - whole connection
2.4 Graphics - end plate, right side
2.4 Graphics - end plate, right side
Printout report
Printout report
Follow us on:   Facebook   Google+   Twitter   YouTube   LinkedIn   Pinterest   Blog      E-mail
© 2015 Dlubal Software GmbH - All rights reserved