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Structural engineering question?

Having trouble getting a 5 1/4"x16" PSL in my area right now.Can I achieve the same rating with 3 16" LVL staggered and thru bolted every 6'(2 bolts per 6').It is my intention to use polyurethane glue such as a PL Premium or similar strength adhesive to join them,along with the above mentioned carriage bolt pattern(1/2" bolts) and nailed every bay with six 12 d nails(not sinkers,hand nails).Will I be able to do this without the addition of a 6x6 post in the center?

The engineer wants more money as a consultation fee and to come out and advise,yet zoning says they'll allow it.

,but I want to be sure.

I'm personally not prepared to pay him just for that.Application is to support a second floor sistered floor joist system for a 40' run.Obviously only engineers need answer this question.

I'd like to avoid the use of a flich plate at all costs.

Update:

Use of an in-filled steel beam is not practical as logistics do not allow the use of a crane on the job.Floor joists are not actually sistered,but stacked and gusseted with ply wood rips and obviously hung from joist hangers.Give the rating in KIPS if you've got the calculations.

Update 2:

Original floor system to remain to avoid additional cost to the home owner.Floor joists must be shored then cut down the center to install the beam.TJI's would be the prefered joists for this application,but the home owner is already close to budget constraints on this project

Update 3:

Question has been open for 14 hours and no answers?Someone must posses the knowledge to answer this question.

Update 4:

Nevermind.I've already gotten the answer on the other Q&A site I've been invited to.

1 Answer

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  • 1 decade ago
    Favorite Answer

    You'll get the same strength(within reason) and the same dimensions using this method.I can't believe noone has answered this question yet.Good luck on the other site!

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