EDGE OF SIGN VARIABLE 12" (MAX) 25'-0" OLUMN AP 9'-5" (MAX) DETAIL END AP 1'-6" 4'-0" ARMS OPTIONAL SPLIE SIGN SIGN AND ARMS JP 1'-3" (MIN) 5'-0" 0.4 x L (MAX) OPTIONAL SPLIE VAIRES (25'-0" MAX) SEE ONTRAT PLANS PIPE LENGTH (L) TOP OF FINISHED GRADE BASE P ( 3) DRILLED SHAFT NOTE: ENTER SIGN VERTIALLY ON ANTILEVER ARMS DEPARTMENT DIRETOR Kirk T. Steudle FOR Michigan Department of Transportation PREPARED BY DESIGN DIVISION APPROVED BY: DIRETOR, BUREAU OF FIELD SERVIES STEEL ANTILEVER TYPE E DRAWN BY: HEKED BY: APPROVED BY: DIRETOR, BUREAU OF DEVELOPMENT 1 OF 6
NOTES: 1. THE DESIGN OF THIS STRUTURE IS BASED ON THE AASHTO STANDARD SPEIFIATIONS FOR STRUTURAL SUPPORTS FOR HIGHWAY SIGNS, LUMINARIES AND TRAFFI SIGNALS, URRENT EDITION. 2. WELDING MUST BE IN ONFORMANE WITH AMERIAN WELDING SOIETY (AWS) D1.1:2010, STRUTURAL WELDING ODE-STEEL (AS MODIFIED BY THE URRENT 12SP-707A- STRUTURAL STEEL AND ALUMINUM ONSTRUTION), HEREAFTER ALLED AWS D1.1. 3. MAXIMUM SIGN AREA IS 240 SQUARE FEET FOR ONE SIGN. MINIMUM SIGN HIEGHT WITH ALUMINUM BEAM IS 6.5 FEET. 4. HOT-DIP GALVANIZE (HDG) ALL STEEL OMPONENTS PER ASTM A123 PRIOR TO BOLTED ASSEMBLY. HDG ALL FASTENER OMPONENTS PER ASTM A153. BLAST LEAN BASE PLATES, STIFFENERS, AND ALL WELDMENTS PRIOR TO GALVANIZING. 5. PROVIDE 13/16" OHOLES FOR 3/4" HIGH O STRENGTH (HS) BOLTS FOR ALL ONNETIONS UNLESS OTHERWISE STATED. PROVIDE HIGH STRENGTH BOLTS, NUTS, AND WASHERS IN AORDANE WITH SUBSETION 906.07 OF THE MDOT STANDARD SPEIFIATIONS FOR ONSTRUTION. PROVIDE LOK WAWSHERS THAT MEET ANSI B18.21.1. 6. TIGHTEN ALL HIGH STRENGTH BOLTS BY THE TURN OF NUT METHOD PER SUBSETION 707.03.D OF THE MDOT STANDARD SPEIFIATIONS FOR ONSTRUTION. 7. ALL WELDS MUST BE 100 PERENT VISUAL TEST (VT) INSPETED BY AN AWS ERTIFIED WELDING INSPETOR (WI). ALL FILLET WELDS (EXEPT END AP AND OLUMN AP WELDS) MUST BE 25 PERENT MAGNETI PARTILE TEST (MT) INSPETED BY A TEHNIIAN QUALIFIED IN AORDANE WITH AMERIAN SOIETY OF NONDESTRUTIVE TESTING (ASNT) LEVEL II. ALL OMPLETE JOINT PENETRATION (JP) WELDS MUST BE 100 PERENT ULTRASONI TEST (UT) INSPETED BY A TEHNIIAN QUALIFIED IN AORDANE WITH ASNT LEVEL II. 8. SEE URRENT MDOT SIGN SUPPORT TYPIAL PLAN SIGN-340-SERIES FOR SIGN FOUNDATION. 9. SEE URRENT MDOT SIGN SUPPORT TYPIAL PLAN SIGN-700-SERIES FOR SIGN ONNETION. 10. OLUMN SETIONS MUST BE 18 INH DIAMETER AT 93.45 POUNDS PER FOOT, ARM SETIONS MUST BE 10 3/4 INH DIAMETER AT 40.48 POUNDS PER FOOT. 11. THE FLANGE PLATES MUST BE WELDED TO ASSURE OBTAINING FULL ONTAT IN THE RELAXED POSITION PRIOR TO SNUGGING UP FLANGE BOLTS. THE FLANGE BOLTS MUST NOT BE TORQUED IN AN ATTEMPT TO LOSE. 12. BASE PLATE ( P) WARPAGE MUST NOT EXEED 1/16 INH PER FOOT. 13. BAKING BAR FOR OPTIONAL OLUMN SPLIE MUST BE MINIMUM 1/4 INH X 2 INH PLATE OR STANDARD HILL RING. BAKING BAR FOR OLUMN TO BASE PLATE MUST BE MINIMUM 1/4 INH X 1 INH PLATE OR STANDARD HILL RING. 2 OF6 NOTE: THE ORIGINAL SIGNED OPY IS KEPT ON FILE AT THE.
" DRILLED SHAFT 1'-4" X 9 " X 3/4" STIFFENER P 30" OBOLT IRLE A 1" R A 22.5 6" OENTER HOLE WITH 2" SLOT PARALLEL WITH ARM BRAKET OLUMN O.D. 18" (8) 2" ANHOR O BOLTS EQUALLY SPAED AT 45 ON A 30" OBOLT IRLE 18" O.D. OLUMN 38" OX 1 " BASE P PLAN VIEW 38" BASE PLATE DETAIL DETAIL A ( 4) 1'-4" 3/4" STIFFENER P DETAIL B ( 4) 1 " 1" (MAX) TOP OF FINISHED GRADE LEVELING NUT 3" 1 " X 1 " OPE ANHOR BOLT SETION A-A SEE 4 OLUMN BASE UTTING DETAIL 3 OF6 NOTE: THE ORIGINAL SIGNED OPY IS KEPT ON FILE AT THE.
5/16 5/16 JP 1/4" WELD AND GRIND SMOOTH 1/4 OLUMN WALL 3/8 5/16 5/16 OLUMN WALL 3/4" BAKING BAR 1" 1" R 24" 3" DETAIL A 1 " X 1 " OPE BASE P DETAIL B 3/4" STIFFENER P WRAP WELD AROUND OUTSIDE EDGE STOP 1/4" SHORT OF ORNER LIP ANTILEVER ARM SIDE 1/16" 12" OLUMN BASE UTTING DETAIL UT PIPE BOTTOM TO PROVIDE FOR OLUMN RAKING 4 OF6 NOTE: THE ORIGINAL SIGNED OPY IS KEPT ON FILE AT THE.
B 9" 9" ARM WALL 9" X 9" X 3/4" P 1" X 1" OPE 9" X 4 " X 3/4" P WELD & GRIND SMOOTH DETAIL E ARM 1 " " WELD & GRIND SMOOTH 3/4" P 3" TYP DETAIL E B DETAIL - FRONT L OLUMN 1" OHOLES 22.5 (8) 1" HS O BOLTS EQUALLY SPAED AT 45 ON A 17" OBOLT IRLE 3/4" P 17" OBOLT IRLE 3" OHOLE 20" OX 1 " FLANGE P ARM SETION - (SEE 6 FOR ADDITIONAL FLANGE INFORMATION) SETION B-B DETAIL F 1'-6" X 4 " X 3/4" P (SEE 6 FOR SETION E-E) D 9" X 4 " X 3/4" P WELD & GRIND SMOOTH D BLEND THE WELD TO A SMOOTH TRANSITION WITH THE PIPE WALL BY GRINDING THE FULL LENGTH OF TAPER. L OLUMN ARM 1/4" 6" TAPER TYP TYP OLUMN WALL DETAIL - TOP DETAIL F ARM ONNETION WRAP WELD AROUND OUTSIDE EDGE, STOP 1/4" SHORT OF ORNER LIP 5 OF6 NOTE: THE ORIGINAL SIGNED OPY IS KEPT ON FILE AT THE.
1 " P 1" X 1" OPE WELD & GRIND SMOOTH (DETAIL E) ( 5) ARM 5/8 TYP 1" SETION D-D ARM ONNETION 1/4" AP P TYP " OHS BOLT " 5" 1/4" AP H H END AP DETAIL (USE AT THE END OF EAH ARM) 3/16 OLUMN AP DETAIL FLAT WASHER NUT HS BOLT L1 " X 1 " X 1/4" 9/16" OHOLE TAK WELD " HEX NUT OR TAP HOLE IN ANGLE FOR " OBOLT LOK WASHER FLAT WASHER DETAIL OF WASHER PLAEMENT SETION H-H 6 OF6 NOTE: THE ORIGINAL SIGNED OPY IS KEPT ON FILE AT THE.