Tubular braces bolted to the web of a deep girder
Tubular braces are bolted to plates on the web of a deep I-girder, with a stiffener behind. M20 bolts; the welds govern.
Connection library · Bracing and gusset nodes · industrial hall
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The 3D model is the connection as it was checked: members, plates, welds and bolts. Drag to rotate, scroll or pinch to zoom, tap a part type to hide it.
- Plates
- 10 mm thick
- Bolts
- M20
- Welds
- fillet, throat 4.2–10 mm
- Design code
- AISC 360-16
- Method
- Component-based finite element model (CBFEM)
How it was checked
Every plate, bolt and weld in one model
The joint is modelled with shell elements for the plates and member ends, and with nonlinear springs for bolts, welds and anchors (the component-based finite element method). The member forces are applied at the member ends and the model is loaded step by step to the full design load.
Plates pass when the plastic strain stays below the limit of the code; bolts, welds and anchors are checked against the component resistances of AISC 360-16. The bars above show each component’s utilisation for the governing load case.
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AISC 360-16 · Welds 86 % of capacity
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Bracing and gusset nodesCHS 219.1 braces on an HEB 600 column
AISC 360-16 · Welds 76 % of capacityNeed a connection like this designed?
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