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15-Moonstone

Hello,
I would like to try to simulate the load of an overhead crane on the lower wing of a beam, for example of the HEB type.
I can't highlight the bending of the wings and its constraints.
Has anyone ever experienced this problem?
I'm still on Creo 3.0.
Sincerely.
Denis

11 REPLIES 11

15-Moonstone
(To:skunks)

Hello,
I don't have a CAD drawing.
But one can imagine a HEA 260 truss with a point load of 3000[N] on the lower wing on either side to avoid a torsional effect.
Sincerely.
Denis

example att.

15-Moonstone
(To:skunks)

Hello,
Thank you for that quick and complete answer.
What I don't understand is this constraint delineated at the front of the truss.
It stops exactly at the support of the load.
Sincerely.
Denis

it's a example only...

15-Moonstone
(To:skunks)

Thank you for this first approach.

17-Peridot
(To:DenisJaunin)

To help avoid confusion, in English  "Contrainte von mises"  is "Stress von mises".

so "What I don't understand is this stress delineated at the front of the truss."

Constraint is something very different....  the restraint at the end...  Hold X,Y,Z...

The reason for the stress vm stop/discontinuous at the load is best shown by two things.

2. General von mises equation.  The coefficient is 6 on the shear terms so they dominate. (That is why the tresca diagram is similar to the von-mises.)

plot stress XX and you will find bending stress for this beam.

plot stress XY and you will see shear stress for this beam.

15-Moonstone
(To:SweetPeasHub)

17-Peridot
(To:DenisJaunin)

I tried this beam in 5M length, simply supported.

I have interest in this because someday I hope my garage will have a beam trolley. 🙂

Model

Stress von Mises

15-Moonstone
(To:SweetPeasHub)

Thank you for these details.
I attach a link to you where you will find documents on the calculation of overhead cranes, but it is in French.

https://www.sendspace.com/file/66xe4l

15-Moonstone
(To:DenisJaunin)
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