Bolted plate to plate connection design (EN)

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By following this step-by-step tutorial, you will learn how to design and code-check a structural steel joint using IDEA StatiCa Connection.

1 New project

Let’s launch the IDEA StatiCa Connection application (download the newest version).

Create a new project by selecting the starting template closest to the desired design. Fill in the name and choose Eurocode as the design code and the steel grade as S355.

Design of bolted plate to plate connection (EN)

2 Geometry

Two beams were automatically added. Change the cross-section of member B1 to a welded I section and define the cross-section dimensions (height, flange thickness, and width and thickness of the web).

Design of bolted plate to plate connection (EN)
Design of bolted plate to plate connection (EN)

Assign the same cross-section to member B2. You can use the right-click menu in the 3D scene or the drop-down menu in the parameters tab.

Design of bolted plate to plate connection (EN)

3 Load effects

One load effect was automatically generated. Input the values of internal forces in the table for both members.

Design of bolted plate to plate connection (EN)

4 Design

The manufacturing operation Plate to plate (PP1) was automatically added within the starting template. First, change the bolt grade and size.

Design of bolted plate to plate connection (EN)

Then right-click on the operation PP1 and navigate to Pre-design and Flush to create a reasonable connection design.

Design of bolted plate to plate connection (EN)

5 Check

Start the analysis based on CBFEM by clicking Calculate in the ribbon. The analysis model is automatically generated, the calculation is performed and you can directly see the overall check results in the top-left corner of the scene.

Design of bolted plate to plate connection (EN)

More detailed results can be displayed in the Check tab. Activate the Plastic strain, Bolt forces, Mesh, and Deformed shape in the ribbon to get a full picture of what is happening in the model.

Individual results can be checked in the appropriate tables. E.g., open the Bolts tab to see the utilization of each bolt. You can see that some bolts are almost unused and may be removed to optimize the design.

Design of bolted plate to plate connection (EN)

You can also look at the bolt check equations in the expanded menu.

Design of bolted plate to plate connection (EN)

6 Optimization

IDEA StatiCa Connection allows easy optimization of the design. You can remove the unnecessary bolts in the plate editor. Right-click on the connecting plate and open the Editor.

Design of bolted plate to plate connection (EN)

Click Explode above the bolts table and delete the unnecessary bolts 5, 7, 13, and 15.

Design of bolted plate to plate connection (EN)

Re-run the Calculation and check the updated results. The new design passed all the checks, and you saved some of the bolts.

Design of bolted plate to plate connection (EN)

7 Report

At last, you can review the Report. IDEA StatiCa offers a fully customizable report to print out or save in an editable format.

Design of bolted plate to plate connection (EN)

You have designed, optimized, and code-checked a bolted plate-to-plate connection according to Eurocode (EN).

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