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RE: Precast Single T[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: RE: Precast Single T
- From: Brent Koch <kochengr(--nospam--at)pacbell.net>
- Date: Wed, 01 Nov 2000 11:17:06 -0800
Todd, It is likely that your section was produced from a larger form where a standard 8ft width was cropped to 6ft. Also your 12" depth was probably achieved by placing a filler into a much deeper stem form, probably a 36" section depth overall. If that's true for your tee, you'll need to create your section from a standard section geometry and calculate the section props for your specific case. >From the 2nd Ed. of the PCI Design Handbook (1978) Single Tee: 8ST36 (PCI MANUAL 1978 2nd Ed.) Flange Width 8'-0" Flange Thickness 1.5" at tips Flange Thickness 3.0" at flange/web chamfer Section Depth 36" Web Width 8" Web/Flange Chamfer appears 3"x3" A = 570 in^2 ; I = 68,917 in^4 ; yb = 26.01 in ; yt = 9.99 in Sb = 2650 in^3 ; St = 6899 in^3 The only other single tee listed in the 2nd Ed PCI Manual is a 10'wide x 48" deep section: Single Tee: 10ST48 (PCI MANUAL 1978 2nd Ed.) Flange Width 10'-0" Flange Thickness 1.5" at tips Flange Taper 1:14 Section Depth 48" Web Width 8" Web/Flange Chamfer appears 3"x3" A = 570 in^2 ; I = 68,917 in^4 ; yb = 26.01 in ; yt = 9.99 in Sb = 2650 in^3 ; St = 6899 in^3 However, I also have the section properties for an 8'-0" wide x 32" deep form used in Hawaii starting in the late 70's. Single Tee: 8ST32 (CON-FAB, Hawaii) Flange Width 8'-0" Flange Thickness 2.0" at tips Flange Thickness 3.0" at flange/web chamfer Section Depth 32" Web Width 8" Web/Flange Chamfer 3"x3" A = 606 in^2 ; I = 50,449 in^4 ; yb = 23.8 in ; yt = 12.2 in Sb = 2118 in^3 ; St = 6171 in^3 I mention Con-Fab's section because it has been my experience that even though the PCI Manual shows "standard" sections there's no guarantee that is the same section producers will have their forms fabricated to. You really need to know what section each individual precaster uses. If you are interested, e-mail me your fax number directly and I will fax you the applicable pages out of the PCI Manual and Con-Fab's Brochure. Brent R. Koch, P.E. KOCH ENGINEERING, INC. Livermore, CA mailto:kochengr(--nospam--at)pacbell.net -----Original Message----- From: Speck, Todd M [mailto:tmspeck(--nospam--at)pbsj.com] Sent: Wednesday, November 01, 2000 09:21 To: 'seaint(--nospam--at)seaint.org' Subject: Precast Single T I am looking for section properties of an existing precast single-T member. I know it is 6'-0" wide and 12" deep. I'm looking for section dimensions (web width, flange depth (tapered), etc.) and title of any publications that list these section properties (e.g. PCI manuals). Thanks for your help. Todd M. Speck, P.E.
- Precast Single T
- From: Speck, Todd M
- Precast Single T
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