Loading...
HomeMy WebLinkAbout24 912 room 30Re: The seal on these drawings indicate acceptance of professional engineering responsibility solely for the truss components shown. The suitability and use of this component for any particular building is the responsibility of the building designer, per ANSI/TPI 1. The truss drawing(s) referenced below have been prepared by MiTek Industries, Inc. under my direct supervision based on the parameters provided by Carter Components-Pittsboro, IN. Liu, Xuegang 49214 Pages or sheets covered by this seal: I16983218 thru I16983218 My license renewal date for the state of Indiana is July 31, 2012. Important Notice: If visually graded lumber is used for the trusses covered by these designs, see "SPIB Important Notice, Dated July 28, 2010" (reprinted at www.mii.com) before use. MiTek does not warrant third-party lumber design values. Order 14515 North Outer Forty Drive Suite 300 Chesterfield, MO 63017-5746 MiTek Industries, Inc. September 28,2010 Job ORDER Truss AT1 Truss Type ATTIC Qty 14 Ply 1 49214 Job Reference (optional) I16983218 7.250 s Sep 1 2010 MiTek Industries, Inc. Tue Sep 28 12:35:10 2010 Page 1 Carter Lumber, Franklin, Indiana 46131 ID:9gYMHejSYJ4Vzlv4?4?SmKyZ5kl-9gYMHejSYJ4Vzlv4?4?SmKiKFhA8ZHIOQOXlvFyZ5kl Scale = 1:57.7 1 2 3 4 5 6 7 8 9 10 11 1213 16 15 145x8 6x8 5x10 5x10 5x10 5x8 5x8 8x10 3x6 8x10 3x6 2x4 2x4 5x8 3-2-15 3-2-15 5-10-4 2-7-5 18-1-12 12-3-8 20-9-1 2-7-5 24-0-0 3-2-15 -1-0-0 1-0-0 3-2-15 3-2-15 5-10-4 2-7-5 10-3-11 4-5-7 12-0-0 1-8-5 13-8-5 1-8-5 18-1-12 4-5-7 20-9-1 2-7-5 24-0-0 3-2-15 25-0-0 1-0-0 0-7-29-7-20-7-29.00 12 Plate Offsets (X,Y): [6:Edge,0-5-2], [7:0-5-0,Edge], [8:Edge,0-5-2], [14:0-3-8,0-4-0], [16:0-3-8,0-4-0] LOADING (psf) TCLL TCDL BCLL BCDL 20.0 10.0 30.0 * 10.0 SPACING Plates Increase Lumber Increase Rep Stress Incr Code 2-0-0 1.15 1.15 YES IRC2006/TPI2002 CSI TC BC WB (Matrix) 0.87 0.40 0.55 DEFL Vert(LL) Vert(TL) Horz(TL) Attic in -0.53 -0.87 0.03 -0.23 (loc) 14-16 14-16 12 14-16 l/defl >537 >327 n/a 636 L/d 240 180 n/a 360 PLATES MT20 Weight: 165 lb FT = 20% GRIP 197/144 LUMBER TOP CHORD 2 X 6 SYP 2400F 2.0E *Except* 1-4,10-13: 2 X 6 SPF No.2 BOT CHORD 2 X 8 SYP 2400F 2.0E WEBS 2 X 4 SPF No.2 BRACING TOP CHORD Structural wood sheathing directly applied or 2-2-0 oc purlins. BOT CHORD Rigid ceiling directly applied or 10-0-0 oc bracing. MiTek recommends that Stabilizers and required cross bracing be installed during truss erection, in accordance with Stabilizer Installation guide. REACTIONS (lb/size)2=1834/0-3-8 (min. 0-2-14), 12=1834/0-3-8 (min. 0-2-14) Max Horz 2=-167(LC 3) FORCES (lb) - Max. Comp./Max. Ten. - All forces 250 (lb) or less except when shown. TOP CHORD 2-3=-2589/0, 3-4=-2295/0, 4-5=-2204/0, 5-6=-1414/0, 6-7=0/1052, 7-8=0/1052, 8-9=-1414/0, 9-10=-2204/0, 10-11=-2295/0, 11-12=-2589/0 BOT CHORD 2-16=0/2058, 15-16=0/1445, 14-15=0/1445, 12-14=0/2058 WEBS 6-8=-2759/0, 5-16=0/1256, 9-14=0/1256, 3-16=-797/7, 11-14=-797/8 NOTES 1) Unbalanced roof live loads have been considered for this design. 2) Wind: ASCE 7-05; 90mph; TCDL=6.0psf; BCDL=6.0psf; h=25ft; Cat. II; Exp B; enclosed; MWFRS (low-rise); cantilever left and right exposed ; end vertical left and right exposed; Lumber DOL=1.33 plate grip DOL=1.33 3) This truss has been designed for a 10.0 psf bottom chord live load nonconcurrent with any other live loads. 4) * This truss has been designed for a live load of 20.0psf on the bottom chord in all areas where a rectangle 3-6-0 tall by 2-0-0 wide will fit between the bottom chord and any other members, with BCDL = 10.0psf. 5) Ceiling dead load (5.0 psf) on member(s). 5-6, 8-9, 6-8; Wall dead load (5.0psf) on member(s).5-16, 9-14 6) Bottom chord live load (30.0 psf) and additional bottom chord dead load (0.0 psf) applied only to room. 14-16 7) This truss is designed in accordance with the 2006 International Residential Code sections R502.11.1 and R802.10.2 and referenced standard ANSI/TPI 1. 8) Attic room checked for L/360 deflection. LOAD CASE(S) Standard THIS TRUSS IS DESIGNED FOR RESIDENTIAL ATTIC LIMITED STORAGE AREA AND/OR SLEEPING ROOMS ONLY. Design valid for use only with MiTek connectors. This design is based only upon parameters shown, and is for an individual building component. Applicability of design paramenters and proper incorporation of component is responsibility of building designer - not truss designer. Bracing shown is for lateral support of individual web members only. Additional temporary bracing to insure stability during construction is the responsibillity of theerector. Additional permanent bracing of the overall structure is the responsibility of the building designer. For general guidance regardingfabrication, quality control, storage, delivery, erection and bracing, consult 14515 N. Outer Forty, Suite #300 Chesterfield, MO 63017 ANSI/TPI1 Quality Criteria, DSB-89 and BCSI Building Componentavailable from Truss Plate Institute, 781 N. Lee Street, Suite 312, Alexandria, VA 22314.Safety Information September 28,2010 WEBSdimensions shown in ft-in-sixteenths6-4-8Industry Standards:Plate location details available in MiTek 20/20software or upon request.*General Safety NotesNumbering SystemSymbolsPLATE LOCATION AND ORIENTATION3/4"1For 4 x 2 orientation, locateplates 0- 1/16"This symbol indicates the required direction of slots inconnector plates.PLATE SIZE4 x 4Indicated by symbol shown and/orby text in the bracing section of theoutput. Use T, I or Eliminator bracingif indicated.Indicates location where bearings(supports) occur. Icons vary butreaction section indicates jointnumber where bearings occur.BEARINGTOP CHORDSBOTTOM CHORDS12345678TOP CHORD TOP CHORD C1-2C2-3C3-4C4-5C7-8C6-7C5-6C1-8 W1-7W2-7 W3- 7 W3-6 W 4 - 6JOINTS ARE GENERALLY NUMBERED/LETTERED CLOCKWISEAROUND THE TRUSS STARTING AT THE JOINT FARTHEST TOTHE LEFT.CHORDS AND WEBS ARE IDENTIFIED BY END JOINTNUMBERS/LETTERS.ICC-ES Reports:ESR-1311, ESR-1352, ER-5243, 9604B,95-43, 96-31, 9667ANER-487, NER-56195110, 84-32, 96-67, ER-3907, 9432A0-1/16"from outsideedge of truss.WEBSMiTek Engineering Reference Sheet: MII-7473 rev. 10-’08' 2006 MiTekfi All Rights Reserveddimensions shown in ft-in-sixteenths (Drawings not to scale)6-4-8ANSI/TPI1: National Design Specification for Metal Plate Connected Wood Truss Construction.DSB-89: Design Standard for Bracing.BCSI: Building Component Safety Information, Guide to Good Practice for Handling, Installing & Bracing of Metal Plate Connected Wood Trusses.Industry Standards:Plate location details available in MiTek 20/20software or upon request.*General Safety NotesFailure to Follow Could Cause PropertyDamage or Personal Injury1. Additional stability bracing for truss system, e.g. diagonal or X-bracing, is always required. See BCSI.2. Truss bracing must be designed by an engineer. For wide truss spacing, individual lateral braces themselves may require bracing, or alternative T, I, or Eliminator bracing should be considered.3. Never exceed the design loading shown and never stack materials on inadequately braced trusses.4. Provide copies of this truss design to the building designer, erection supervisor, property owner and all other interested parties.5. Cut members to bear tightly against each other.6. Place plates on each face of truss at each joint and embed fully. Knots and wane at joint locations are regulated by ANSI/TPI 1.7. Design assumes trusses will be suitably protected from the environment in accord with ANSI/TPI 1.8. Unless otherwise noted, moisture content of lumber shall not exceed 19% at time of fabrication.9. Unless expressly noted, this design is not applicable for use with fire retardant, preservative treated, or green lumber.10. Camber is a non-structural consideration and is the responsibility of truss fabricator. General practice is to camber for dead load deflection.11. Plate type, size, orientation and location dimensions indicated are minimum plating requirements.12. Lumber used shall be of the species and size, and in all respects, equal to or better than that specified.13. Top chords must be sheathed or purlins provided at spacing indicated on design.14. Bottom chords require lateral bracing at 10 ft. spacing, or less, if no ceiling is installed, unless otherwise noted.15. Connections not shown are the responsibility of others.16. Do not cut or alter truss member or plate without prior approval of an engineer.17. Install and load vertically unless indicated otherwise.18. Use of green or treated lumber may pose unacceptable environmental, health or performance risks. Consult with project engineer before use.19. Review all portions of this design (front, back, words and pictures) before use. Reviewing pictures alone is not sufficient.20. Design assumes manufacture in accordance with ANSI/TPI 1 Quality Criteria.Numbering SystemSymbolsPLATE LOCATION AND ORIENTATION3/4"1Center plate on joint unless x, yoffsets are indicated.Dimensions are in ft-in-sixteenths.Apply plates to both sides of trussand fully embed teeth.For 4 x 2 orientation, locateplates 0- 1/16"This symbol indicates the required direction of slots inconnector plates.PLATE SIZE4 x 4The first dimension is the plate width measured perpendicular to slots. Second dimension isthe length parallel to slots.Indicated by symbol shown and/orby text in the bracing section of theoutput. Use T, I or Eliminator bracingif indicated.Indicates location where bearings(supports) occur. Icons vary butreaction section indicates jointnumber where bearings occur.LATERAL BRACING LOCATIONBEARINGTOP CHORDSBOTTOM CHORDS12345678TOP CHORD TOP CHORD C1-2C2-3C3-4C4-5C7-8C6-7C5-6C1-8 W1-7W2-7 W3- 7 W3-6 W 4 - 6JOINTS ARE GENERALLY NUMBERED/LETTERED CLOCKWISEAROUND THE TRUSS STARTING AT THE JOINT FARTHEST TOTHE LEFT.CHORDS AND WEBS ARE IDENTIFIED BY END JOINTNUMBERS/LETTERS.PRODUCT CODE APPROVALS0-1/16"from outsideedge of truss.