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IDEA StatiCa Connection

A new way to design and check all steel connections according to the code, in minutes


IDEA StatiCa Connection is a powerful analysis solution for 3D Steel connection, fully integrated to Advance Design.

IDEA StatiCa Connection can design all types of welded or bolted connections, base plates, footing and anchoring. It provides precise checks, results of strength, stiffness and buckling analysis of a steel joint. Joints are checked according to EC/AISC. Templates for most-used connections are available as well as wide range of predefined hot rolled and sheet welded members.

2D frames & trusses

GRAITEC IDEA StatiCa | Connection

Footings, anchoring

GRAITEC IDEA StatiCa | Connection

3D frames & trusses

GRAITEC IDEA StatiCa | Connection


No limits in how many connections there are in the joint and how they are put together. Shape is defined by project requirements, not by software capabilities.


All forces are analyzed. The overall check of the joint takes into account interactions between all the beams and connections. Engineers stay on the safe side all the time.


The whole design and check process is kept short enough to be a part of everyday work of structural engineers and fabricators all around the world.

Work with data from other programs

IDEA StatiCa Connection


Design your joint from scratch or build on geometry and loading imported from GRAITEC Advance Design, Robot, Revit. More BIM Links will be added in the future.


Take advantage of integration into Advance Steel to provide workshops drawings and support manufacturing process

IDEA StatiCa Connection provides

Overall check

According to various national design codes

Stress/ strain analysis

FE model of steel joint is composed automatically

Stiffness analysis

Rotational or transversal stiffness of any connection

Member Capacity Design

Seismic check of non-dissipative connections

Buckling analysis

Local buckling effects and critical load factors

Design Joint Resistance

Maximal possible loads, reserve in joint capacity

Improving daily work of engineers

IDEA StatiCa Connection can design steel joints and connections of any topology and loaded in all directions. It keeps the whole analysis-design-check process in minutes. This opens a possibility for structural engineers and fabricators around the world to increase productivity of designing steel joints and connections.


Stay on the safe-side with all checks according to selected national codes at hand at any time.


Engineers spend 70% of the connection design time on 30% non-standard cases. Do them in minutes as well.


Know exactly how much material is needed in the joint and take advantage of it.

Output report

You can choose from three types of output reports – one line, 1 page and detailed. All checks according to Eurocode or AISC are displayed and referenced.

GRAITEC IDEA StatiCa | Connection
GRAITEC IDEA StatiCa | Connection
GRAITEC IDEA StatiCa | Connection

Any topology – manufacturing operations

Any loading – all internal forces from 3D global analysis

GRAITEC Advance Design | Connection

Base plate – N, My, Mz

GRAITEC Advance Design | Connection

3D loaded joint

GRAITEC Advance Design | Connection

End plate – My, Mz, Vy, Vz

3D simulation of a steel joint

Steel joint is composed from plates, welds, bolts, contacts and can be anchored into concrete block. FEA model is generated automatically.

Model is composed from steel plates – both parts of steel members and stiffening plates. Real shape of plates is kept.
Each plate is meshed independently. Equivalent strain is checked.

Contacts appear in places where two plates are in touch. They take 100% of the pressure but do not act in tension at all.

Steel structure can be anchored into concrete block. Base plate is in contact with concrete. Tension is taken by anchors, shear by bolts, friction or shear iron.

Welds are modeled as constrains between plates. Forces in each weld are evaluated. Stress in weld is checked according EN/AISC.

Bolts are nonlinear springs taking tension and shear.

IDEA StatiCa Connection examples

New CBFEM method inside changes the game of structural joint design

Together with two top technical universities, we created a new method for analysis and check of steel joints of general shapes and loading. It is called Component-Based Finite element model (CBFEM). After 5 years of primary research and theoretical preparations, the first version of the application was coded in 24 months and released in May 2014.

How CBFEM works

We combine two well-known and trusted methods used by engineers all around the world – finite element method and component method:
Joint is divided into components
All steel plates are modeled by finite element method assuming ideal elastic-plastic material
Bolts, welds and concrete blocks are modeled as nonlinear springs
Finite element model is used for analyzing internal forces in each of the components
Plates are checked for limit plastic strain – 5% acc. to EC3
Each component is checked according to specific formulas defined by the national code, similarly as when using component method

Validation and verification

Results of all tests performed to confirm safety and reliability of CBFEM method and IDEA StatiCa Connection are published and available. Visit our website to examine them. Professor Wald and his team are also publishing a book devoted to structural steel connections design using CBFEM method:

Benchmark cases for advanced design of structural steel connections

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