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floor joist dead load limits
i am trying to figure out the maximum psf dead load i can put on 2"x10" floor joists that are 16" on center. the span is 25 linear feet with a load bearing wall running down the center (which makes the true span 12.5 linear feet?)the floor was built 100 years ago so the lumber is actual 2"x10" and very, very, dense. i am trying to put some acoustical upgrades to the floor and shooting for a max total dead load of 25 psf which includes all flooring, subflooring, underlayments, and the ceiling materials underneath the flooring. oh, by the way, the exterior walls are true brick/stone with balloon framing (if that information is helpful?)
what is you live load?
check site:
the live load capacity i am shooting for is 60 psf, but 40 psf should suffice.
sclay, with a dense pine 2x10 @ 16" oc, ll=60 psf, dl=25 psf, def limit l/360, double span 12'6" each.
the bending stress is ~790psi and def~.2
so the flood joists should be good
assume connection ans bearing have been checked

2009-09-09, 12:43 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	floor joist dead load limits floor joist dead load limits i am trying to figure out the maximum psf dead load i can put on 2"x10" floor joists that are 16" on center. the span is 25 linear feet with a load bearing wall running down the center (which makes the true span 12.5 linear feet?)the floor was built 100 years ago so the lumber is actual 2"x10" and very, very, dense. i am trying to put some acoustical upgrades to the floor and shooting for a max total dead load of 25 psf which includes all flooring, subflooring, underlayments, and the ceiling materials underneath the flooring. oh, by the way, the exterior walls are true brick/stone with balloon framing (if that information is helpful?) what is you live load? check site: the live load capacity i am shooting for is 60 psf, but 40 psf should suffice. sclay, with a dense pine 2x10 @ 16" oc, ll=60 psf, dl=25 psf, def limit l/360, double span 12'6" each. the bending stress is ~790psi and def~.2 so the flood joists should be good assume connection ans bearing have been checked __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]