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1

You state that the homemade laminated beam is pulling the "under-beams" down with it. Are you sure it's not the other way round? Disconnect the lam beam from the under beams and see if their deflection goes away. Either way, a beam of sufficient strength to support itself and the load of the "under-beams" will solve the problem. How bout a steel I-beam which ...


0

I am not a structural engineer or anything like that. But if you can temporarily remove all load from the highest beam (the home-made one), jack it up so it is straight or bowed very slightly upward, and install a steel strap all along the bottom edge of it, I believe it will remain totally rigid, and provide good support for the other beams which hang from ...


3

If I'm reading this right(and looking at the final picture), the beam itself is sagging. It may have reached an equilibrium point, and simply jacking up an reattaching it will fix it. But you'll still have a bowed beam. My inclination is, a properly built beam should be able to span that distance and hold the weight without sagging. I have smaller, longer ...



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