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Re: strengthening of floor joists with FRP's??

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Galvanic corrosion.


Will

On 6/2/07, Robert Kazanjy <rkazanjy(--nospam--at)gmail.com> wrote:
Will-

>>>>If you are using carbon FRP, I know it cannot be in contact with any of the steel.<<<<

Could you expalin further this prohibition?

cheers
Bob



On 6/2/07, Will Haynes <gtg740p(--nospam--at)gmail.com> wrote:
What FRP are you using? If you are using carbon FRP, I know it cannot be in contact with any of the steel.

Will H.


On 6/2/07, DOLLY TRIVIZ < dktriviz(--nospam--at)msn.com> wrote:

I have a project where we'd like to strengthen the existing open web floor joists (TJW) due to change of occupancy use.  Loads have increased from 50 psf live +20 psf partition to 100 psf live with no partition loading.

Has anyone ever strengthened these types of joists using FRP's adhered to the bottom chord only?? Is this even a possiblity, considering the different materials (i.e. wood chords, steel web members, steel pins) used in the joists? Presence of piping/ducting running through the web spaces precludes the use of sheathing the sides of the joists with plywood, which was my first thought.  Any other suggestions??  Thanks


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