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Most efficient and minimally disruptive way to strengthen a weak RC column in a moment frame.

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conrad martin

conrad martin

Civil/Environmental
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I would like to know what is the most efficient and effective way to strengthen a weak column in a COMPLETED building without increasing the weight significantly as well as the disruptive work.
I am proposing, using steel hunches around the top where it interfaces with the beams and use FRP wraps along the length of the column. Any comments will be greatly appreciated.
 
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Can you use FRP?

Dik
 
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When you say its a weak column, what exactly is it short on capacity for, bending or shear or axial capacity or all three or a combination of two? Are the beam/column joints also insufficient?

FRP wraps for example might only address insufficient confinement and not improve shear or bending capacity?
 
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