RHS 100×50 post anchored to the side of a concrete wall

RHS 100×50 post anchored to the side of a concrete wall

A light rectangular hollow section post is bolted to a bracket anchored into the face of a concrete wall. The anchors, the concrete block and the M12 bolts are checked together.

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From a real projectAISC 360-16Checked: all components OK
RHS 100×50 post anchored to the side of a concrete wall: overall check of the finite element model

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.

Members
RHS 100×50×3 (S235)
Bolts
M12
Welds
fillet, throat 2.8–4 mm
Design code
AISC 360-16
Method
Component-based finite element model (CBFEM)
Plates (plastic strain)0 / 5 %
Bolts35.5 / 100 %
Anchors36.9 / 100 %
Welds17.2 / 100 %
Concrete block5.3 / 100 %
RHS 100×50 post anchored to the side of a concrete wall: equivalent stress in the plates and members
Equivalent stress under the governing load case.
RHS 100×50 post anchored to the side of a concrete wall: overall check with plastic strain
Overall check: plastic strain and component status.

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.

Need a connection like this designed?

Send the member sizes and forces, or the analysis model. You get the checked connection with its report and detail sketches.

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