Ask Structural Engineering Questions and Get Expert Answers ASAP
Hello. How are you doing? I'll be happy to assist you.
That's a very good description, thank you
One thing seems to not make sense so I will ask for clarification.
You said the live load deflection is L/400 and dead load deflection is L/210? That means the dead load is about twice that of the dead load, which I would be VERY surprised about.
Is it the dead load deflection that is L/210 or te total load deflection?
Great. That makes more sense.
That is a very big deficiency to make up in the deflection. The solution (both the engineering and the installation) are not simple, but it can definitely be done
It will require temporarily shoring the floors so the load can be removed from the beam, then welding a prop leek sized WT shape to the bottom of your existing WF beam.
I can do all of the engineering and sketches for you as an additional service. This will include the size of the WT, the grade of material, the welding requirements, a procedure, and any sketches needed to show the information
I will provide that for you, too. I'm not allowed to discuss cost in the chat, so I wi submit the offer for you to consider. If you accept, I will get you all the information today.
I do want to let you know ahead of time that the WT will be large and significantly increase the overall depth of your beam. Trying to increase the moment of inertia by a factor of 3.5 requires a lot of depth
I can minimize depth, but without running the numbers I can't say for sure how deep it will be. I can do everything I can to limit the depth to 6" (nominal). It may end up being a WT and plates on the top.
Doing some very rough calculations, I feel confident that we can get this to work with a nominal 6" depth maximum. It may be something like 6.25" or 6.5" actual, but it will be close to the 6"
Hello, do you still want the additional service on this? If you could rate my answer, I would appreciate it.