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Reinforcing existing two way slabs

Reinforcing existing two way slabs

Reinforcing existing two way slabs

(OP)
I have an existing two way slab that has had several bars cut in both layers during coring operations for plumbing openings.

I am only aware of repairs with FRP reinforcement for such conditions.  Is there anything else out there I should look for?

If there are any online resources that you favor for FRP, could you point me that way?

thanks ahead of time.

RE: Reinforcing existing two way slabs

Analyze the situation, for many times the reinforcement requirement in both directions scarcely varies when one opening is present. The more typical exception, of course, is when your hole is besides some column cutting the normal path of forces and not letting the column efficiently take the load. For these cases more attention is warranted.

For openings to be made on existing floors every kind of proposals are made, from the more careful to the more wild; fortunately as I put before, 2-way structures are quite tolerant to make new holes, and I myself of the local practice have never known a single case of structural pathology of such cause.

Respect reinforcement, tensile strength is as of now mainly added through carbon fiber or alike specialty works, and for shear through bolts in epoxy may be used; steel outfits are also sometimes fabricated, mainly to avoid edge reinforced concrete members and so making the holes even bigger. In almost all connections especially for restoration and in general when in low number, it is good practice to glue the metal parts with epoxy to the base, I have seen deciding parties be more opposed to other things bt this idea uses to be liked, appeals to their sense of sticking things.

RE: Reinforcing existing two way slabs

No matter what the reinforcement you will need to consider the structure's fire rating. Your options may belimited in  type IA or IB structure.

 

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