ASTM F2589-2011 Standard Specification for Ornamental Fences Employing Steel Tubular Pickets《使用钢管柱装饰围栏的标准规格》.pdf

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1、Designation: F2589 11Standard Specification forOrnamental Fences Employing Steel Tubular Pickets1This standard is issued under the fixed designation F2589; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.

2、A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification establishes the minimum require-ments for coated tubular picket ornamental fence systemsfabricated from black (tha

3、t is, not galvanized) steel compo-nents.1.2 The requirements of this specification do not apply tovertical bar fence systems utilizing solid bar or wrought ironmaterials.1.3 The values stated with inch-pound units are to beregarded as standard. The SI values in parentheses are providedfor informatio

4、n.2. Referenced Documents2.1 ASTM Standards:2A500 Specification for Cold-Formed Welded and SeamlessCarbon Steel Structural Tubing in Rounds and ShapesA501 Specification for Hot-Formed Welded and SeamlessCarbon Steel Structural TubingB117 Practice for Operating Salt Spray (Fog) ApparatusD714 Test Met

5、hod for Evaluating Degree of Blistering ofPaintsD523 Test Method for Specular GlossD822 Practice for Filtered Open-Flame Carbon-Arc Expo-sures of Paint and Related CoatingsD1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD2244 Practice for Calculation

6、 of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD2794 Test Method for Resistance of Organic Coatings tothe Effects of Rapid Deformation (Impact)D3359 Test Methods for Measuring Adhesion by Tape TestE4 Practices for Force Verification of Testing MachinesF2814 Gu

7、ide for Design and Construction of OrnamentalSteel Picket Fence Systems for Security Purposes3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 adhesionthe bonding integrity of an organic coatingto the base metal substrate.3.1.2 corrosion resistancethe ability of an organicallyco

8、ated metal product to resist attack due to the base metalattempting to return to a more passive oxidized state.3.1.3 fence panelfabricated unit consisting of rails andpickets. Also referred to as a fence section.3.1.4 impact resistancethe measure of an organicallycoated metal product to resist inden

9、tion; the ability of a coatingto resist cracking or loss of adhesion due to reforming the metalduring bending or a shape change from abuse.3.1.5 ornamental accessoryany fitting that adds furtherdecoration to an ornamental metal fence system includingitems such as finials, caps, picket collars, rings

10、, scrolls, or otherornamental panel inserts.3.1.6 postvertical fence structural component that sup-ports the panel in the ornamental metal fence system.3.1.7 railhorizontal structural component of a fencepanel.3.1.8 tubular pickethollow vertical ornamental compo-nent of a fence panel.3.1.9 tubular p

11、icket ornamental metal fence systemanarchitectural metal fence system that combines ornamentalfence structural components (that is, tubular pickets, rails, andposts) with ornamental accessories and fasteners, assembledand evaluated as a complete installed structure.3.1.10 weathering resistancethe ab

12、ility of an organicallycoated metal product to resist loss of coating gloss or colorchange due to excessive humidity or ultra-violet (UV) sunlightexposure.4. Significance and Use4.1 The purpose of this specification is to define minimumselection criteria and test procedures to ensure product usersth

13、at a tubular picket ornamental metal fence system has thestrength necessary to withstand reasonable loads and penetra-tion forces, and has the appropriate combination of material1This specification is under the jurisdiction of ASTM Committee F14 on Fencesand is the direct responsibility of Subcommit

14、tee F14.35 on Architectural MetalFence Systems.Current edition approved Dec. 1, 2011. Published January 2012. Originallyapproved in 2006. Last previous edition approved in 2006 as F2589 - 06.DOI:10.1520/F2589-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cus

15、tomer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.and surface protection to withstan

16、d the harmful effects ofcorrosion and weathering for an extended period of time.4.2 For security applications, more definitive requirementsare listed in Guide F2814.5. Materials and Manufacture5.1 Steel material for tubular picket ornamental fence sys-tem structural components (that is, tubular pick

17、ets, rails andposts) shall conform to the requirements of SpecificationsA500 or A501 and shall have a minimum yield strength of45 000 psi (310 MPa).5.2 Organic Coating Materials5.2.1 Powder coatings applied to the exterior surface offence components shall be polymer material: polyester orepoxy and p

18、olyester combinations having a minimum thick-ness of 3 mils; polyolefin elastomer having a minimumthickness of 7 mils; or PVC having a minimum thickness of 10mils.5.2.2 Wet coating applied to the exterior surface of fencecomponents shall be a two-coat paint application system (onecoat of epoxy, poly

19、ester, or polyurethane primer; one coat ofpolyester, polyurethane, or acrylic liquid) with the total com-bined coating having a minimum thickness of 2 mils.5.3 Fittings, fasteners, and decorative accessories for orna-mental steel fence systems shall be manufactured with amaterial and finish coating

20、that meets the same protectivecoating performance requirements as required for panels andposts.6. Physical Dimensions6.1 Cross-section and thickness dimensional requirementsfor ornamental metal fence structural components shall be asspecified by the manufacturer, provided that the performancecriteri

21、a of Section 8 are met. Table 1 is provided as a guidelineto show nominal values typically used for residential, lightindustrial (commercial), and industrial applications.6.2 Fence height and space between rails may vary inaccordance with manufacturers standards, provided local or-dinances and build

22、ing codes do not limit these dimensions fora specific application, such as might be the case for pool safety,gate safety, or structural wind load bearing capacity. Nosharply pointed picket tops shall be used on fences less than 4ft (1.22 m) in height.NOTE 1Fence height is a nominal value and is typi

23、cally the distancefrom grade to the top of the fence.6.3 The spacing between pickets shall be 4 in. (101.6 mm)or less; however, if applicable local regulations (such as maybe applied to pool fencing, child care facility fencing, publicrailing systems, or fencing adjacent to automated gates, etc.)hav

24、e more restrictive spacing requirements, then those localregulations shall govern.7. Workmanship7.1 All ornamental metal fence system components shall beproduced using materials and finishes specified in Section 5,and shall be free from defects in workmanship.8. Testing Structural8.1 Structural Test

25、 Method A Application of HorizontalConcentrated Load8.1.1 Installation of Test SpecimenOne line of fence witha minimum of three panels of the fence system to be testedshall be installed in accordance with the manufacturers speci-fications and drawings. Selection of the test specimen shouldconsider t

26、he maximum range of styles and sizes to be certified(see Section 10).8.1.2 Apparatus8.1.2.1 Testing MachineAny testing machine or loadingdevice, capable of imposing forces accurate to within 61%,when calibrated in accordance with Practices E4, is suitableand may be used, provided the requirements of

27、 specified rate ofloading and unloading are met. The testing device shall be ofsufficient capacity to prevent yielding of its various compo-nents and shall ensure that the applied load remains essentiallyparallel to the relevant axis of the assembly during testing.8.1.2.2 Test SystemA diagrammatic t

28、est set-up for apply-ing horizontal tension forces to the assembly is shown in Fig.1. The bearing plate, normally 6-in. (150-mm) long, shall be ofsufficient size to prevent local failure of the surroundingstructural members or components. The loading device shall beattached to the assembly by means

29、of pins or a swivelconnector to prevent the direct transfer of any flexural forcesthrough the connection.8.1.2.3 Deflection MeasurementsDial gauges, having asmallest division of not more than 0.01 in. (0.25 mm), or anysuitable measurement devices or calibrated sensors of at leastcomparable accuracy

30、and sensitivity shall be used to measurethe horizontal displacements of the top rail relative to itsoriginal location at each loading point prior to load application.These devices shall have sufficient measurement capability toindicate the displacement throughout the test range.TABLE 1 Nominal Sizes

31、 for Ornamental Fence Structural ComponentsApplication Component Typical Cross-Section Wall ThicknessResidentialPicket58 in. by58 in. (15.9 mm by 15.9 mm) 18 Ga.Rail 1 in. by 1 in. (25.4 mm by 25.4 mm) 18 Ga.Post 2 in. by 2 in. (50.8 mm by 50.8 mm) 16 Ga.Light Industrial(Commercial)Picket34 in. by34

32、 in. (19.0 mm by 19.0 mm) 16 Ga.Rail 138 in. by 112 in. (44.4 mm by 38.1 mm) or 112 in. by 112 in. (38.1 mm by 38.1 mm) 14 Ga.Post 212 in. by 212 in. (63.5 mm by 63.5 mm) 14 Ga.IndustrialPicket 1 in. by 1 in. (25.4 mm by 25.4 mm) 16 Ga.Rail 138 in. by 112 in. (44.4 mm by 38.1 mm) or 112 in. by 112 i

33、n. (38.1 mm by 38.1 mm) 14 Ga.Post 3 in. by 3 in. (76.2 mm by 76.2 mm) 12 Ga.F2589 1128.1.3 Procedure8.1.3.1 PositioningPosition the test stand in such a waythat the load is applied, as shown in Fig. 1, to the structuralmember perpendicular to the plane of the fence system withoutcausing any local f

34、ailure at the point of load application.8.1.3.2 Mounting of InstrumentsMount the dial gauge,measurement device, or sensor at the loading point as is shownin Fig. 1. Place the sensing element of the instrument in contactwith and normal to the surface or an extension of the surface ofthe top rail of t

35、he fence system being tested in such a way asto measure displacement in the direction of the applied load.8.1.4 Load Application8.1.4.1 Initial Load ApplicationApply an initial load cor-responding to 50 % of the required test load (see Table 2) fora minimum of two minutes in order to bring all membe

36、rs intofull bearing. Reduce load to 25 % of the required test load(50 % of the preload), and observe the initial deflection. Thedeflection at this initial test load shall be the base point forsubsequent deflection readings.8.1.4.2 Step Load ApplicationDuring constant-level steploading up to the requ

37、ired test load, each increment of loadshall amount to not more than 15 % of the required test load.After each step load is applied, it shall be released to the initialtest load and the residual deflection shall be observed. Plot theinitial and incremental readings of the force and deflectiongauges a

38、t each load point in the form of load-deformationcurves.8.1.4.3 Rate of LoadingThe rate of loading betweenincrements shall be uniform throughout the test and such thatthe load is applied at a constant rate of deformation of 0.20 60.10 in. (5.0 6 2.5 mm) per minute. If this rate of loadingcannot be a

39、chieved because of the type of testing machine usedor the equipment available, the rate of loading shall be as nearto that required in this subsection.8.2 Structural Test Method BApplication of Vertical Con-centrated Load8.2.1 Installation of Test SpecimenA minimum of onepanel of the fence system to

40、 be tested shall be installed inaccordance with the manufacturers specifications and draw-ings. Selection of the test specimen should consider themaximum range of styles and sizes to be certified (see Section10). The bottom of the fence panel shall be elevated by anoffset distance of approximately 1

41、2 in. (305 mm) to allow fordownward elastic deformation during test load application.8.2.2 ApparatusFIG. 1 Test Set-Up for Application of Horizontal Concentrated LoadTABLE 2 Required Test Load CapabilitiesClassRequired TestLoad - Method A(Based on ResidualDeflection Less Than12 in. (12.7 mm)Required

42、 TestLoad - Method B(Based on ResidualDeflection Less Than12 in. (12.7 mm)Required TestLoad - Method C(Based on ResidualDeflection Less Than14 in. (6.4 mm)Required TestLoad - Method D(Based on ResidualDeflection Less Than14 in. (6.4 mm)AIndustrial 300 lbf (1330 N) 400 lbf (1780 N) 100 lbf (440 N) 10

43、0 lbf (440 N)Commercial 200 lbf (890 N) 300 lbf (1330 N) 75 lbf (330 N) 75 lbf (330 N)Residential 100 lbf (440 N) 200 lbf (890 N) 50 lbf (220 N) 50 lbf (220 N)ACapability also requires that the test cone never penetrates beyond the tapered portion during any step load increment including the require

44、d test load.F2589 1138.2.2.1 Testing MachineAny testing machine or loadingdevice, capable of imposing forces accurate to within 61%,when calibrated in accordance with Practices E4, is suitableand may be used, provided the requirements of specified rate ofloading and unloading are met. The testing de

45、vice shall be ofsufficient capacity to prevent yielding of its various compo-nents and shall ensure that the applied load remains essentiallyparallel to the relevant axis of the assembly during testing.8.2.2.2 Test SystemA diagrammatic test set-up for apply-ing vertical forces to the assembly is sho

46、wn in Fig. 2. Thebearing plate, normally 4-in. (101.6-mm) long, shall be ofsufficient size to prevent local failure of the surroundingstructural members or components. The bearing plate shall bepositioned flush to the top rail and shall have a hole at its centersufficiently sized to fit over a picke

47、t if the style being tested haspickets that extend above the top rail. The loading device shallbe attached to the assembly by means of pins or a swivelconnector to prevent the direct transfer of any flexural forcesthrough the connection.8.2.2.3 Deflection MeasurementsOne dial gauge, having asmallest

48、 division of not more than 0.01 in. (0.25 mm), or anysuitable measurement device or calibrated sensor of at leastcomparable accuracy and sensitivity shall be used to measurethe vertical displacements of the top rail relative to the originallocation at the loading point after release of the preload.8

49、.2.3 Procedure8.2.3.1 PositioningPosition the test frame (or moveablehead of testing machine) in such a way that the load is applied,as shown in Fig. 2, to the structural member parallel to theplane of the fence system and normal to it without causing anylocal failure at the point of load application.8.2.3.2 Mounting of InstrumentsMount the dial gauge,measurement device, or sensor at each loading point as isshown in Fig. 2. Place the sensing element of the instrumentsin contact with the surface or an extension of the surface of the