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Build a 5' retaining wall for Building number 1, in sections. Underpin Building #3, 3 times, in sections. Each section below is wider than above. If you are in the Philadelphia area, feel free to reach out. I work with a contractor who is excellent in this kind of work.

2% has always been the norm and is very conservative

I can understand why some are hesitant to discuss steel exposed to 🔥 Thank you for the AISC link, makes very clear sense. The steel that will be the vehicle to straightening bent steel will also be the reinforcing steel left in place, connected to existing for max force. If anyone has any...

+1 for camber and a sheetrock detail so ceiling can move up and down independent of adjacent stiff wall and corresponding wall covering. Maybe the roof should be made of steel instead of wood?

The reason to not just replace trusses that were exposed to fire is: 1) I don't think they lost their strength. Fire from cardboard boxes is not considered a hot fire. 2) Money, insurance doesn't want to pay. To repair the roof above the trusses is 150K, insurance offers 150K only. What about...

Aesur, I actually read his reply completely different. I read it as, the easy way out is to just replace anything fire touched and call it a day. In reality, the steel strength is still adequate if a member can be returned to its original shape. In this case I believe it can. Not sure if the...

BA, I don't like clunky either. I'm going to recommend replacing the top chord only, replace rivets with bolts and done. Contractor can shore it up as needed. The fire started from a battery charging, a little tiny battery. Sparks caught boxes on fire. I originally thought it was a diesel fire...

BA: Little confused. All new steel, just not removing existing. Reinforce actual damage, not all the way to original splice points. Anyway, was wondering about use of heat to straighten the top chord so splice angles can be added without interference. I read about that on this forum, from a...

This is what I was thinking: 1) Weld all members to existing gussets where possible 2) Knock out rivets and place 1/4" gusset plates each side. Cut existing leg angles as required. 3) Replace all bolt holes 4) New web angles to match, weld ends to new gusset. Continuous top and bottom angles...

Just tell the EOR to put a beam in the design and be done with it. Many things are overlooked, differential deflection is a common one.

Main truss damaged

Cross brace and adjacent truss.

Hi, I was hoping to get some recommendations on how to fix one steel roof truss that has buckled top chord in 3 bays and fire likely diminished the adjacent truss and brace truss at same location. Trusses spanning about 75'. It seems that the owner may be OK with putting a beam under the...