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i � I I NI N.' Wished Shoulder Ground line, DETAIL OF POST B OFF -SET BLOCK 2 Panels i i Normal Shoulder Edge of Pavement E Direction of Traffic LOCATION DIAGRAM FOR STEEL PLATE BEAM GUARD INTERMEDIATE SECTIONS Pedestrian Open- NOTE: Widen Shoulder 2 N in Beam Guard for walkway, if and STEEL when required, when required PLATE BEAM 5 Normal Shoulder - + Lme- GUARD C 1 - J I splice Bolt B Nut 5/8"# x 1 C -I I)I 1 � - alw 3 : 1. o �- i -77' Direction of Traffic Povt Edge' Wig° l a 1 3/4" x 3" Washer —Face LOCATION IAGRAM FQR_STEL PLATE BEAM GUARD AT BRIDGE EXITS NOTE olden Shoulder �Pedestnon ODan- tar walkway if no ng In Beam Guard when requwad. when required. STEEL PLATE Narmai Snouitler BEAM GUARD T-f—IPPWxMtn 4aa...- Ld Brulpe PoVf Edge hieb face' A.___ Duschortof Traffic LOCATIVN DIAgRAM FOR STEEL PLATE BEAM GUARD AT BRIDGE APPROACHES 3 F- 11/2" 1 LIZ- , --31/ 32" 2",-31/32" T -T m =T Z: - m _ i - 13'-6 I/2� Ponel lengths 12'-6' C. C. Post Spacings Steel Plate Beam Guard Rail Element--- Finished Shoulder Surface Note: Roil element lap in direction of trial Sowed treated timber Posts 6"x 8"x 6'-0" and offset sowed treated timber blocks 6"x B' x 14' nom. dim. shall be furnished and placed in accordance with the Stand. Specs. If post tops or off -set block ends ore sowed or cut in field such cut surfaces. shall be pointed 2 coats of creosote following erection. FRONT(Traffic Side) ELEVATION STEEL PLATE BEAM GUARD OR STEEL PLATE BEAM (MEDIAN) GUARD 8 GAGE GALVANIZED -MOUNTING BOLT WASHER 13/4" Wash SECTION i1B— Ba 1enBi' _ 6i dounting Bolt Roil Element Terminal Section Min.12 Gage Steel =V 3af _ Ground Surface FRONT (Traffic Side) VIEW Post Offset Block 5 2 R. PLAN VIEW Note: Elevation for tops of median posts shall approximate that of adjacent Pavement grades. } .r t d Median Strip Finished Surface Shoulder -- I -lt' dian Strip D Buttonheod Mounting Bolt I 5/8" m x length as required, secured with wosher B nut. Thread end to be burred fol- lowing mcwhting. End Elevation End'Elevation Showina Position of Showing Position of I i i � I STEEL PLATE STEEL PLATE BEAM GUARD BEAM(MEDIAN)GUARD Terminal Section MIn.l2 Gage Steel Grountlor 16x20"Wide angle silver Concrete flat top Scotchllfe refleGire Surface sheeting or egulval. with pressure sensitive dhesive mounted on and. FRONT VIEW I I f / Wood Pasl 6 f" , p R PLAN VIEW TERMINAL SECTION DETAILS FOR TERMINAL SECTION DETAILS FOR STEEL PLATE BEAM GUARD STEEL PLATE BEAM(MEDIAN)GUARD 2 2 X 15 Slotted Holes for R-' 4c Z i - f —y. 1 Button head Oval snoul_der C 1 - J I splice Bolt B Nut 5/8"# x 1 C -I I)I 1 � - alw toSymmetrical about t o ( f l a 1 3/4" x 3" Washer I 1 i �p y "a Neutral Slotted Hole for. Rall 11B'i Buttonhaod Mounting Bolt B,a m x lengt1."'s a3 required secured w to washer B out Thread end to be burred -t following mounting. RAIL ELEMENT SPLICING B POST MOUNTING DETAILS CURVE DATA Middle Ordinates far Beam Curving 31" S Chord Lengths for 7 Post Spacings. � 0 ,AL C", "D" 8 "E"(in Feet plus I I Feet) 1 Note- All d, mensionssubject to manufacturing tolerance I40 „a SECTION "AA* RAIL ELEMENT SECTION 160 (Min 12 GAGE STEEL) 170 "M "(in feet). 0 GENERAL NOTES Details of construction not shownon this drawing shall conform to the pertinent requirements of the Standard SpecificoGOns and the applicable Special Provisions. The Steel Plate Beam Guard or (Median) Guard shall consist of steel Plate made of open hearth or electric furnace steel. Plates shall be blanked to proper $hope, fabricated and ready for assembly when received in the Held. The plates shall be true to plan dimensions and ofuniform section Worpetl or deformed plates will be rejected. The edges of the plates shall be rolled or rounded SO that they present no sharp edges. All connections and splices shall be formed with flat round headed bolts,or similar detail sothot no appreciable projection will be presented onthe road side of the guard. The mil element shall be spliced by lapping in the direction of traffic or by butt pint with splice plate. Plate ends in lop splices or plate ends and splice plate in butt splices shall make contact throughout the entire area of the splice. TESTS The elongation of a 2 inch specimen of the steel plate used in the roil element shall be not less than 12 percent tested in tension. The minimum tensile strength of the hall element shall when tested in toniuntion with splices and end connections, be Sg6O0 lbs. The rail element when loaded as a simple beam, freely supported at each end on 12=0 centers shall support a concerti. ted load of spancenter through o flat surface 3 inches long, in accord w in the following - BEAM ELEMENT Traffic Face up Trotftc Face Down ' Load Maximum Lood Maximum Deflection Deflection 1500 Ib. 2-0 in. 1200 Ib. 2.0 in. 20001b 3.0 in. 1600 lb 1 3.0 in GALVANIZED The steel plate beam element and terminal sections shall be furnished galvanized The spelter coating of the base metal sheets Shall be in accordance with A.A. S. HO Designation. M 3,6 The beam element may be galvanized before or after fabrication. Botts, nuts, and washers shall be furnished galvanized in accordance with A.S.T M. Designation: A153, Class C. *CIRCULAR STEEL PLATE ELEMENT Steel plate beam elements for beam guard or (median) guard for radii of 20 ft. to 150 ft shall be shop -curved. Steel Plate beam elements shall be bent to true circular curvoture, void of kinks. Kinks shall be cause for rejection. Steel plate beam elements shall have a minimum bending radius of 20 feet. MEASUREMENT B PAYMENT The items of Steel Plate Beam Guard and Steel Plate Beam (Median) Guard shall be measured and paid for at the contract unit price per linear fool, measured in place by length in linear feet from end to end -out to out of terminal sections, which price shop be full compensation for furnishing and placing all materials and performing oil work to completion in accordance with the Stand. Specs. the opphcoble Plans and Special Provisions. -Len ih =12'-6 •\ - � For Post ' /Position 01 M s,de Beam Guard. _S' Off -set D" Block ForPost Position Inside Beam 'p= Guard. 21 X 15 Slotted Holes for R-' 4c 16 Rail Element Splices 5c I7' ^ 132 60 IS"R Min 12 Ca Steel Roil Element 70 alw toSymmetrical about t 3 _ Bo 2 Y u 90 l00 „Nf 2 �p y "a Neutral Slotted Hole for. Rall A.�. E lement post mounting u 120 r - 130 1 Note- All d, mensionssubject to manufacturing tolerance I40 „a SECTION "AA* RAIL ELEMENT SECTION 160 (Min 12 GAGE STEEL) 170 "M "(in feet). 0 GENERAL NOTES Details of construction not shownon this drawing shall conform to the pertinent requirements of the Standard SpecificoGOns and the applicable Special Provisions. The Steel Plate Beam Guard or (Median) Guard shall consist of steel Plate made of open hearth or electric furnace steel. Plates shall be blanked to proper $hope, fabricated and ready for assembly when received in the Held. The plates shall be true to plan dimensions and ofuniform section Worpetl or deformed plates will be rejected. The edges of the plates shall be rolled or rounded SO that they present no sharp edges. All connections and splices shall be formed with flat round headed bolts,or similar detail sothot no appreciable projection will be presented onthe road side of the guard. The mil element shall be spliced by lapping in the direction of traffic or by butt pint with splice plate. Plate ends in lop splices or plate ends and splice plate in butt splices shall make contact throughout the entire area of the splice. TESTS The elongation of a 2 inch specimen of the steel plate used in the roil element shall be not less than 12 percent tested in tension. The minimum tensile strength of the hall element shall when tested in toniuntion with splices and end connections, be Sg6O0 lbs. The rail element when loaded as a simple beam, freely supported at each end on 12=0 centers shall support a concerti. ted load of spancenter through o flat surface 3 inches long, in accord w in the following - BEAM ELEMENT Traffic Face up Trotftc Face Down ' Load Maximum Lood Maximum Deflection Deflection 1500 Ib. 2-0 in. 1200 Ib. 2.0 in. 20001b 3.0 in. 1600 lb 1 3.0 in GALVANIZED The steel plate beam element and terminal sections shall be furnished galvanized The spelter coating of the base metal sheets Shall be in accordance with A.A. S. HO Designation. M 3,6 The beam element may be galvanized before or after fabrication. Botts, nuts, and washers shall be furnished galvanized in accordance with A.S.T M. Designation: A153, Class C. *CIRCULAR STEEL PLATE ELEMENT Steel plate beam elements for beam guard or (median) guard for radii of 20 ft. to 150 ft shall be shop -curved. Steel Plate beam elements shall be bent to true circular curvoture, void of kinks. Kinks shall be cause for rejection. Steel plate beam elements shall have a minimum bending radius of 20 feet. MEASUREMENT B PAYMENT The items of Steel Plate Beam Guard and Steel Plate Beam (Median) Guard shall be measured and paid for at the contract unit price per linear fool, measured in place by length in linear feet from end to end -out to out of terminal sections, which price shop be full compensation for furnishing and placing all materials and performing oil work to completion in accordance with the Stand. Specs. the opphcoble Plans and Special Provisions. -Len ih =12'-6 •\ - � For Post ' /Position 01 M s,de Beam Guard. _S' Off -set D" Block ForPost Position Inside Beam 'p= Guard.