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Do You Trust Precast Weld-Plate To Laterally Support The Beam?

Do You Trust Precast Weld-Plate To Laterally Support The Beam?

Do You Trust Precast Weld-Plate To Laterally Support The Beam?

(OP)
I've been cautioned in the past, that welds can crack and that we should not depend on, the field-weld of bottom-side weld-plate to top flange of beam, to laterally support the beam.

Comments?

RE: Do You Trust Precast Weld-Plate To Laterally Support The Beam?

I've been relying on those welds. Of course, that doesn't necessarily make it the right thing to do. With some kinds of precast elements, I only weld one end of each element to help reduce restraint stresses on the welds. That results in my only being able to use every second element as LTB bracing.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

RE: Do You Trust Precast Weld-Plate To Laterally Support The Beam?

(OP)
KootK, technically, i should have referred to this as lateral bracing rather than support.

We, typically, only allow one end of each element to be welded for the same reason. This, of course, yields an 8' oc unbraced length for your typical 4' wide spancrete. Other manufacturers do vary.

RE: Do You Trust Precast Weld-Plate To Laterally Support The Beam?

I was speaking in terms of LTB lateral support as well BSVBD.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

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