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An end anchor assembly (Type CA) for metal beam guard railing shall consist of an anchor cable, an anchor
<br /> plate,a single anchor rod or double anchor rods,hardware and one concrete anchor.
<br /> A rail tensioning assembly for metal beam guard railing shall consist of an anchor cable, an anchor plate, and
<br /> hardware.
<br /> The anchor plate,metal plates, steel foundation tubes and steel soil plate shall be fabricated of steel conforming
<br /> to the requirements in ASTM Designation: A 36/A 36M.
<br /> The anchor rods shall be fabricated of steel conforming to the requirements in ASTM Designation:
<br /> A 36/A 36M,A 441 or A 572, or ASTM Designation: A 576,Grades 1018, 1019, 1021 or 1026. The eyes shall be
<br /> hot forged or formed with full penetration welds. After fabrication, anchor rods with eyes that have been formed
<br /> with any part of the eye below 870°C during the forming operation or with eyes that have been closed by welding
<br /> shall be thermally stress relieved prior to galvanizing. The completed anchor rod, after galvanizing, shall develop a
<br /> strength of 220 kN.
<br /> In lieu of built-up fabrication of anchor plates as shown on the plans, anchor plates may be press-formed from
<br /> steel plate,with or without welded seams.
<br /> All bolts and nuts shall conform to the requirements in ASTM Designation: A 307,unless otherwise specified
<br /> in the special provisions or shown on the plans.
<br /> Anchor cable shall be 19-mm preformed, 6 x 19, wire strand core or independent wire rope core (IWRC),
<br /> galvanized in conformance with the requirements in Federal Specification RR-W-41 OD, right regular lay,
<br /> manufactured of improved plow steel with a minimum breaking strength of 200 kN. Two certified copies of mill
<br /> test reports of each manufactured length of cable used shall be furnished to the Engineer. The overall length of each
<br /> cable anchor assembly shall be as shown on the plans,but shall be a minimum of 2 in.
<br /> Where shown on the plans, cable clips and a cable thimble shall be used to attach cable to the anchor rod.
<br /> Thimbles shall be commercial quality, galvanized steel. Cable clips shall be commercial quality drop forged
<br /> galvanized steel.
<br /> The swaged fitting shall be machined from hot-rolled bars of steel conforming to AISI Designation: C 1035,
<br /> and shall be annealed suitable for cold swaging. The swaged fitting shall be galvanized before swaging. A lock pin
<br /> hole to accommodate a 6-mm,plated, spring steel pin shall be drilled through the head of the swage fitting to retain
<br /> the stud in proper position. The manufacturer's identifying mark shall be stamped on the body of the swage fitting.
<br /> The 25-mm nominal diameter stud shall conform to the requirements in ASTM Designation: A 449 after
<br /> galvanizing. Prior to galvanizing,a 10-mm slot for the locking pin shall be milled in the stud end.
<br /> The swaged fittings,stud and nut assembly shall develop the specified breaking strength of the cable.
<br /> The cable assemblies shall be shipped as a complete unit including stud and nut.
<br /> Clevises shall be drop forged galvanized steel and shall develop the specified breaking strength of the cable.
<br /> One sample of cable properly fitted with swaged fitting and right hand thread stud at both ends as specified
<br /> above, including a clevis when shown on the plans, one meter in total length, shall be furnished the Engineer for
<br /> testing.
<br /> The portion of the anchor rod to be buried in earth shall be coated with a minimum 0.5-mm thickness of coal tar
<br /> enamel conforming to AWWA Standard: C203 or a coal tar epoxy conforming to the requirements in Steel
<br /> Structures Painting Council Paint Specification No. 16, Coal-Tar Epoxy-Polymide Black Paint or Corps of
<br /> Engineers Specification,Formula C-200a,Coal-Tar Epoxy Paint.
<br /> Metal components of the anchor assembly shall be fabricated in conformance with good shop practice and shall
<br /> be hot-dip galvanized in conformance with the provisions in Section 75-1.05, "Galvanizing."
<br /> Anchor cables shall be tightened after the concrete anchor has cured for at least 5 days.
<br /> Concrete used to construct anchors for end anchor assemblies shall be Class 3 or minor concrete conforming to
<br /> the provisions in Section 90, "Portland Cement Concrete."
<br /> Concrete shall be placed against undisturbed material of the excavated holes for end anchors. The top 300 mm
<br /> of holes shall be formed,if required by the Engineer.
<br /> Reinforcing steel in concrete anchors for end anchor assemblies shall conform to the provisions in Section 52,
<br /> "Reinforcement."
<br /> The second paragraph in Section 83-1.02D,"Steel Bridge Railing,"of the Standard Specifications is amended to read:
<br /> Structural shapes, tubing,plates,bars,bolts,nuts, and washers shall be structural steel conforming to the provisions
<br /> in Section 55-2,"Materials." Other .fittings shall be commercial quality.
<br /> The second and third paragraphs in Section 83-1.02E, "Cable Railing," of the Standard Specifications are replaced with
<br /> the following paragraph:
<br /> Contract No. 10-OM7104
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