Reinforcing an Existing Joist on One Side
Reinforcing an Existing Joist on One Side
(OP)
I have gone through the analysis and design of an existing joist to be reinforced using SJI's technical note 12. Unfortunately the contractor does not have access to the outside of the joist. They are requesting that the reinforcing be done on one side only. Both the top and bottom chords and the majority of the webs. I can't find any information on this subject related to potential issues this solution may present. Has anyone done this before? Thanks!





RE: Reinforcing an Existing Joist on One Side
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Reinforcing an Existing Joist on One Side
RE: Reinforcing an Existing Joist on One Side
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Reinforcing an Existing Joist on One Side
RE: Reinforcing an Existing Joist on One Side
RE: Reinforcing an Existing Joist on One Side
RE: Reinforcing an Existing Joist on One Side
The horizontal shear transfer is eccentric, more being required on one side than the other. Thanks for clarifying your earlier comments.
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Reinforcing an Existing Joist on One Side
As I recall, the SJI procedure posited by the OP offers several alternatives, one of which leads to a reinforcement scheme intended to not overstress the existing welds. If that is the alternative the OP selected, and if the chords are a double member system, then I am concerned that some reanalysis may be warranted in the review of the contractor's request.
RE: Reinforcing an Existing Joist on One Side
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Reinforcing an Existing Joist on One Side