NOTES: 4" OVERHANG MAX. (TYP) DETAIL N (SHEET 13)

Transcription

1 L " X " X " L " x " x " DETAIL J GUSSET - '-" L " X " X " TRUSS SAN (FT) 50 L L2 (FT) (FT).5 5 TRUSS DATA L CAMBER (FT) (IN).5 5/ ESTIMATED BOX TRUSS WEIGHT (LBS/FT) '-0" x - LAN TO WIND BRACING LOOKING DOWN / / '-0" x - '-0" x - '-0" x '-0" x - THE CAMBER GIVEN IN THE ABOVE TABLE IS THE ORDINATE AT THE CENTER THE ASSEMBLED TRUSS RIOR TO DEAD LOAD DEFLECTION. ALLOWABLE CAMBER TOLERANCE FOR TRUSS IS ±25% CHORDS X X 5/ HSS GUSSET NOTES: WT X 2.5 LAN. THE DESIGN THIS STRUCTURE IS BASED ON THE AASHTO STANDARD SECIFICATONS FOR STRUCTURAL SUORTS FOR HIGHWAY SIGNS, LUMINARIES AND TRAFFIC SIGNALS, CURRENT EDITION. BOTTOM WIND BRACING LOOKING DOWN TRUSS SAN L L2 L END ION 0' 2'- MIDDLE ION END ION DETAIL D GUSSET ( ) DETAIL E ( ) DETAIL A ( 5) A B OVERHANG MAX WELDING MUST BE IN CONFORMANCE WITH AMERICAN WELDING SOCIETY (AWS) D.:200, STRUCTURAL WELDING CODE-STEEL (AS MODIFIED BY THE CURRENT 2S-0A - STRUCTURAL STEEL AND ALUMINUM CONSTRUCTION), HEREAFTER CALLED AWS D.. MAXIMUM SIGN AREA IS 500 SQUARE FEET FOR NO MORE THAN THREE SIGNS. MAXIMUM FOOT ROJECTION ABOVE THE TO CHORD. HOT-DI GALVANIZE (HDG) ALL TRUSS COMONENTS ER ASTM A2 RIOR TO BOLTED ASSEMBLY. HDG ALL FASTENER COMONENTS ER ASTM A5. BLAST CLEAN BASE LATES, STIFFENERS, AND ALL WELDMENTS RIOR TO GALVANIZING. ROVIDE / OHOLES FOR / HIGH O STRENGTH (HS) BOLTS FOR ALL CONNECTIONS UNLESS OTHERWISE STATED. ROVIDE HIGH STRENGTH BOLTS, NUTS, AND WASHERS IN ACCORDANCE WITH SUBION 90.0 THE MDOT STANDARD SECIFICATIONS FOR CONSTRUCTION.. TIGHTEN ALL HIGH STRENGTH BOLTS BY THE TURN NUT METHOD ER SUBION 0.0.D THE MDOT STANDARD SECIFICATIONS FOR CONSTRUCTION.. DO NOT LIFT THE TRUSS BY THE WEB MEMBERS. 2 L's X X " L's X X " L X X " A B DETAIL N ( ). THE CAMBERING MUST BE ROVIDED IN THE FABRICATION SO THAT THE FLANGES ARE CORRECTLY SLOED TO ASSURE OBTAINING FULL CONTACT IN THE RELAXED ASSEMBLED OSITION RIOR TO SNUGGING U THE FLANGE BOLTS. THE FLANGE BOLTS MUST NOT BE TIGHTENED IN AN ATTEMT TO CLOSE ANY FLANGE MISALIGNMENT. L / X / X " 9. THE TRUSS ION LENGTHS TABULATED MAY BE INCREASED IN 5 FOOT INCREMENTS TO REDUCE THE NUMBER FIELD SLICES. 0. THE MAXIMUM ION LENGTH MUST NOT EXCEED 0 FEET. ANY DEVIATION FROM THE DETAILS SHOWN ON THESE STANDARDS WILL REQUIRE AROVED SHO S BEFORE FABRICATION. ELEVATION FACING TRAFFIC 0" X 0" X " HSS. 2. ALL WELDS MUST BE 00 ERCENT VISUAL TEST (VT) INSECTED BY AN AWS CERTIFIED WELDING INSECTOR (CWI). ALL FILLET WELDS (EXCET END CA AND COLUN CA WELDS) MUST BE 25 ERCENT MAGNETIC ARTICLE TEST (MT) INSECTED BY A TECHNICIAN QUALIFIED IN ACCORDANCE WITH THE AMERICAN SOCIETY NONDESTRUCTIVE TESTING (ASNT) LEVEL II. ALL COMLETE JOINT ENETRATION (CJ) WELDS MUST BE 00 ERCENT ULTRASONIC TEST (UT) INSECTED BY A TECHNICIAN QUALIFIED IN ACCORDANCE WITH ASNT LEVEL II. SEE CURRENT MDOT SIGN SUORT TYICAL LAN SIGN-00-SERIES FOR SIGN FOUNDATION.. SEE CURRENT MDOT SIGN SUORT TYICAL LAN SIGN-00-SERIES FOR SIGN CONNECTION. DEARTMENT DIRECTOR Kirk T. Steudle BUREAU DEVELOMENT STANDARD LAN FOR. 5. BASE LATE ( ) WARAGE MUST NOT EXCEED / INCH ER FOOT. HSS DENOTES HOLLOW STRUCTURAL SHAE. STEEL TRUSS TYE C REARED BY AROVED BY: DIRECTOR, BUREAU FIELD SERVICES (50 FT - 0 FT) DESIGN DIVISION DRAWN BY: CHECKED BY: AROVED BY: 2 :

2 0" - TO STRUCTURAL TEE COLUMN CA '-" '-0" '-" - C x x 5/ HSS 5 X / BARS (AT ENDS ONLY) DETAIL M ( 2) TO FOUNDATION C C 5/ TY 5/ DETAIL R '-0" ION A-A L " X " X " HEIGHT VARIES (22'-0" MAX) EQ. SA. IF 2' 2 EQ. SA. IF 2' '-0" WT X 2.5 CJ L " X " X " 0" X 0" X " HSS " " X " COE 5/ " X / X GUSSET " " (MAX) DETAIL BASE LEVELING NUTS - '-0" L " X " X " DETAIL K ( 9) L X X 5/ ARALLEL TO LONGITUDINAL AXIS BOX TRUSS OHOLE IN BASE " / ION B-B END ELEVATION OTIONAL SLICE ƒ" OHOLE 9 " " 2 2 " 9 " 5 2 ISOMETRIC VIEW END ION COLUMN WALL / WELD & GRIND SMOOTH R 2 9ƒ" 9ƒ" 2 DETAIL R ION C-C :

3 E " GUSSET C/ O HOLE TY D 9O C TO OR BOTTOM CHORD C TO CHORD F 5ƒ" 5ƒ" F " GUSSET " L x x " L x x " FACES TO BE FLAT & SQUARE D DETAIL A E DETAIL D TO CHORD TO DIAGONAL CONNECTION DETAIL C TO CHORD " X " COE 0" " " " " C TO OR BOTTOM CHORD " GUSSET " GUSSET " CLI ANGLE FLANGE AS NECESSARY WHEN INTERFERING WITH WEB DIAGONAL " R FLAT WASHER HS BOLT " " " " 0" ION D-D L " X " X " " TO AND BOTTOM CHORD CONNECTION DETAILS ION E-E WRA WELD AROUND ENDS AND STO " SHORT CLI. 5 :

4 ANEL OINT C TO CHORD " L " X " X " CLI ANGLE FLANGE AS NECESSARY WHEN INTERFERING WITH WEB DIAGONAL " " GUSSET L " X " X " " " " " GUSSET " GUSSET ION F-F " X " COE G ION G-G WRA WELD AROUND ENDS AND STO " SHORT CLI. L x x " " GUSSET " L x x " L " X " X " " " " H 5ƒ" " GUSSET 5ƒ" H " GUSSET " G DETAIL E BOTTOM CHORD TO DIAGONAL CONNECTION DETAIL ION H-H ANEL OINT :

5 C TO CHORD 0" 0" " ƒ" / OU-BOLT (SEE U-BOLT DETAIL) CTO CHORD 2 " 2 " 2ˆ" " GALVANIZED STEEL SEE COLUMN END CA DETAIL ( ) " X / STEEL BAR WELD TO CA " L x x 5/ J J " L " x " x " 2 " " L X " X /" ( LONG) /" X X " GUSSET " " GUSSET ƒ" L x x 5/ " C TO OR BOTTOM CHORD DETAIL UER CLAM ƒ" RADIUS TO FIT OUTSIDE TUBE 5 " / " C HS BOLTS " U-BOLT DETAIL DETAIL K (2 REQUIRED) / OSTAINLESS STEEL BOLT WITH FLAT / THICK WASHER AND / ONYLON INSERT LOCKNUT 9 0 :

6 9 " ƒ" 2 " 2ˆ" C/ O X " SLOTS " " & GUSSET WT X 2.5 / GUSSET L X " X /" L x x 5/ /" X X " GUSSET C / HOLE O IN ANGLE & / X " SLOT IN /" " ƒ" SEAT DETAIL / /2 / DIMENSIONS FOR DIAGONAL ANGLE ION J-J L x x " 9 " Œ" X / BAR 2 " 2ˆ" / WT X 2.5 " 2ˆ" " K " K C/ O X " SLOTS Œ" " GUSSET " GUSSET " 2 " 2 " /2 " GUSSET / GUSSET " WT X " " " X " COE " / GUSSET 9 " SEAT DETAIL ION K-K DIAGONAL NOT SHOWN FOR CLARITY DETAIL M WRA WELD AROUND ENDS AND STO " SHORT CLI. 2 :

7 0" L X X " / L L " x " COE L x x " " TY.2 " GUSSET / END CA DETAIL " END CA SEAL END CHORD WITH " (WELD BEFORE GALVANIZING) OTIONAL: CA WITH SET SCREWS MAY BE USED AS END CA (SEE COLUMN END CA DETAILS) " GUSSET " " DETAIL N ELEVATION / GUSSET CBOLTS & GUSSET CBOTTOM CHORD & GUSSET " GUSSET " / 9 " /" " HDG STEEL OR CHORD /" OX STAINLESS STEEL CONE OINT SET SCREW REQ'D TO SUIT " " X /.2 " L " x " x " C WT X 2.5 COLUMN CA DETAIL " " " GUSSET " " " ION L-L BOTTOM WINDBRACING LAN :