2010年2月11日 · We have designed a floor system using a W8x15 composite steel beam. We have ran the numbers and the beam is adequate. Does anybody know why the Composite W Shape Table 3-19 (pg 3-189) in AISC13 starts at a W10. I just want to make sure that I'm not missing something and that a W8x15 is acceptable.

2007年9月13日 · I need to design an attachment of a temporary safety beam (W8x15) between two HSS 12x4 (flat side)columns for elevator installation. I was thinking of using a WT at each end to bolt into the web of the wide flange. After elevator installation, the saftey beam and the WT have to be removed to attach the elevator guide rails.

2017年1月27日 · It's a 6-story building, first floor is commercial and residential floors are above. I am attaching here first floor (commercial) framing plan. EOR design loads is LL 100 psf for this floor and DL as per material (he calls for 4" LWC) so let's say overall DL is around 65 psf. so it's roughly 170 psf for 14' long w8x15..Seems too small for me.

2018年12月28日 · I need to remove the existing precast lintel and 2 courses of 8" cmu's to raise the 10'6" wide opening to 96 1/6". The poured cmu bond beam shall remain. I am planning to install a W8x15 A500 Gr. B beam 12' long. This is a residential house with a second wood frame floor above and shingle roof...

2010年8月25日 · Without doing any calculations, I would agree with StructuralEIT that a bolt 2" from top and 2" from bottom of a W8x15 constitutes lateral bracing for either flange provided that the clip angle is thick enough. A brace is deemed adequate if it can provide 2% of the compression in the flange to be braced without excessive deflection.

2024年10月2日 · The pan forms were at least somewhat standardized, so that's perhaps part of it, as in you're looking for the depth of a W8x15 which has known values, for example. What I think varied was mostly the web width and the reinforcing in the joist.

2003年12月16日 · A W8x15 (there is no 14) has a moment of inertia, Ix = 48 in^4 A W6x20 has a moment of inertia, Ix = 41.5 in^4. So two S4's do not come close. For general stiffness, your beam should be at least (span in feet)/2 in inches of depth (a 12' span should require a 6" beam)

2016年4月28日 · I'm the staff engineer for a smallish contractor. A customer has come to us needing more head room over a machine they want to bring in. There are 30" bar joists in the area, and they were hoping to replace those with 6" beams if possible. My analysis shows they need at least a W8x15 (it's a 20' span), and they said they can work with that.

2009年5月22日 · I'll probably be notching them 1/2" to bear on the flange of the W8x15 steel beam that supports them on the open side, and I'll likely use a ledger with a 2x cleat on the other end, since I don't think I can make hangers work with the …

2012年12月14日 · In one direction this is cantilever construction. Since you're presumably exposed to wind in both directions, you're going to get a reasonable amount of load reversal.