1、Designation: F3151 17Standard Specification forDriven Steel Post Drive Anchor System1This standard is issued under the fixed designation F3151; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in
2、parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This standard provides an alternative to the use ofconcrete footings for the purpose of installing steel postframework to support chain link, exp
3、anded metal, welded wiremesh, wood, ornamental, rigid PVC, and composite fence.1.2 This standard is not intended to include all methodsavailable to support fence post framework.1.3 This standard does not intend to preclude any practicethat has proven equal to or given better performance undervarying
4、 conditions such as location, weather, or intended use.1.4 The values stated in inch-pound units are to be regardedas standard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish a
5、ppro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for th
6、eDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:F567 Practice for Installation of Chain-Link FenceF1043 Specification for Strength and Protective Coatings
7、onSteel Industrial Fence Framework3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 anchormeans of stabilizing vertical fence frame-work members with underground support equal to or greaterthan a concrete footing.3.1.2 drive anchorsteel members driven into the groundto support f
8、ence framework post.3.1.3 drive anchor clamp bracketpressed steel fitting thatsecures the drive anchors to the post.4. Materials4.1 Drive anchor clamp bracket to be pressed steel, mini-mum of 11 ga. 1 in. wide, minimum 1.2 oz/ft2hot dipped zinccoating. Bracket secured using38 in. diameter bolts.4.2
9、Drive anchors.4.2.1 Industrial/commercial applications require all drivensteel anchors, including round or square sections, to have equalor greater strength characteristics as the historical 112 in. 112 in. 18 in. steel angle irons. Whichever shape chosen musthave a yield strength of 35,000 psi, a m
10、aximum bendingmoment of 6,462 lb/in., a minimum 1.2 oz/ft2zinc coating, anda gripping surface area of 3 in.24.2.2 Residential applications for fences up to 60 inches inheight require 1 in. 1 in. 18 in. steel angle having aminimum zinc coating 1.2 oz/ft2, a yield strength of 35,000 psi,or alternate s
11、teel shapes of equal strength, coating, and surfacegripping area.5. Installation5.1 The installer shall investigate the various conditions ofthe site, such as terrain contours, soil characteristics (texture,density, moisture content), frost line, amount of rainfall,velocity of wind, and related fact
12、ors to ascertain if driveanchors are applicable.5.2 Infringement of anchors on property owned by others. Inthis situation the anchors may be inserted parallel to the fenceline, rather than perpendicular. In performance tests, there islittle difference in the orientation of the blades.5.3 The procedu
13、re to install bolted drive anchors includesthe following steps:5.3.1 Under normal conditions, drive the post plumb to aminimum depth of 24 in. plus an additional 6 in. for each 1 ftincrease in the fence height over 4 ft. Climate, soil conditions,or local regulations may require greater depth.5.3.2 W
14、ith a pointed shovel, cut a small trench around thepost to a depth of about 6 in.5.3.3 Install anchor clamp bracket and slightly tighten boltsto hold bracket in place.5.3.4 Drive anchors, at about a 45 degree angle to the post,to depth below grade.1This test method is under the jurisdiction of ASTM
15、Committee F14 on Fencesand is the direct responsibility of Subcommittee F14.15 on Other Fence Systems andComponents.Current edition approved Oct. 1, 2017. Published October 2017. DOI: 10.1520/F315117.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959.
16、United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barr
17、iers to Trade (TBT) Committee.15.3.5 Give the bolts a final tightening, as the anchors mustbe firmly attached to the post in a manner that prevents themfrom slipping out of place.5.3.6 Backfill the excavation with soil to ground level.6. Keywords6.1 anchor blades; anchoring fence posts; anchoring ga
18、teposts; angle iron blades; concrete footings; drive anchor; driveanchor clamp brackets; galvanized steel anchor; fence footings;frost jacking; post anchoring system; post stabilizing system;post footingsTABLE 1 Post-Anchoring System GuidelinesCommercial UseNOTE 1As with concrete footings, wind, hei
19、ght, percent of fence closure, gates, etc., will determine the length and size of the drive anchors to beinstalled.Round Post ODSize of Roll-formed PostLength and# of Anchors or “Blades”Method of Attachment “Shoe”Up to 238 in.1.875 in. 1.625 in.24 to 30 in.2 eachBracket and38 in. bolts278 in.2.25 in
20、. 1.70 in.30 to 60 in.2 eachBracket and38 in. bolts312 in. and U. S. Dept. ofTransportation, Federal Highway Administration (FHWA).(2) The Pull Resistance of Right-Of-Way Fence Posts In ConcreteFootings Versus Drive Anchors. Commonwealth of PennsylvaniaDepartment of Transportation Bureau of Material
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