Reinforce beam HEA, HEB

[Brannmark]

Does anyone know if you can reinforce a HEA/HEB beam by welding in more "webs" in the beam? I'm planning to build a gantry crane in the garage with a span of 7m. I've had an engineer do some calculations, and an HEB 200 beam should work, as it would have a maximum 1-ton load within 1/500 deflection if I understood everything correctly. I'm looking for a suitable second-hand beam, but HEB 200 seems scarce; I know of a HEA 180 beam and wondered if it can be stiffened with extra webs in the beam? I thought about preparing the beam while it's available, but I'll need to calculate how thick the webs need to be, if it works that way at all...

 

[Dust]

Hello!

There is quite a difference in bending resistance between HE 180 A and HE 200 B. HE 200 B has essentially double the bending resistance of the HE 180 A beam. Then there will be a lot of welding if you are going to add 2 webs to the beam. Also, it is the flange that should resist the bending, the web should just keep the flange in the right place.

Is there a beam that needs to be inspected? Because I believe both beams can handle your load. Don't forget to check how the crane attaches to the beam, it shouldn't fit both HEA and HEB beams due to the completely different appearance of the flange.