ASTM F1575-03(2013)
(Test Method)Standard Test Method for Determining Bending Yield Moment of Nails
Standard Test Method for Determining Bending Yield Moment of Nails
SIGNIFICANCE AND USE
5.1 Nails are a common mechanical fastener in wood structures. Engineering design procedures used to determine the capacities of laterally-loaded nailed connections currently use a yield theory to establish the nominal resistance for laterally-loaded nailed connections that are engineered. In order to develop the nominal resistance for laterally-loaded nailed connections, the bending yield moment must be known.
SCOPE
1.1 This test method covers procedures for determining the bending yield moment of nails when subjected to static loading. It is intended only for nails used in engineered connection applications, in which a required connection capacity is specified by the designer.
1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1575 − 03 (Reapproved 2013)
Standard Test Method for
Determining Bending Yield Moment of Nails
This standard is issued under the fixed designation F1575; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 transition zone—the location of the transition from
smooth shank to threaded shank on a deformed-shank nail.
1.1 This test method covers procedures for determining the
3.1.3 yield theory—the model for lateral load design values
bending yield moment of nails when subjected to static
loading. It is intended only for nails used in engineered for dowel-type fasteners that specifically accounts for the
different ways these connections behave under load. The
connection applications, in which a required connection capac-
ity is specified by the designer. capacity of the connection under each yield mode is deter-
minedbythebearingstrengthofthematerialunderthefastener
1.2 The values stated in inch-pound units are to be regarded
and the bending strength of the fastener, with the lowest
as standard. No other units of measurement are included in this
capacity calculated for the various modes being taken as the
standard.
design load for the connection.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Method
responsibility of the user of this standard to establish appro-
4.1 Test specimens are evaluated to determine capacity to
priate safety and health practices and determine the applica-
resist lateral bending loads applied at a constant rate of
bility of regulatory limitations prior to use.
deformation with a suitable testing machine. The load on the
test specimen at various intervals of deformation is measured.
2. Referenced Documents
Supplementaryphysicalpropertiesofthetestspecimenarealso
2.1 ASTM Standards:
determined.
E4 Practices for Force Verification of Testing Machines
E1470 Test Method for Characterization of Proteins by
5. Significance and Use
Electrophoretic Mobility (Withdrawn 2014)
5.1 Nails are a common mechanical fastener in wood
F1667 Specification for Driven Fasteners: Nails, Spikes, and
structures. Engineering design procedures used to determine
Staples
the capacities of laterally-loaded nailed connections currently
use a yield theory to establish the nominal resistance for
3. Terminology
laterally-loaded nailed connections that are engineered. In
3.1 Definitions of Terms Specific to This Standard:
order to develop the nominal resistance for laterally-loaded
3.1.1 bending yield moment—the moment determined from
nailed connections, the bending yield moment must be known.
the load-deformation curve that is intermediate between the
proportional limit and maximum load for the nail. It is
6. Apparatus
calculated by the intersection of the load-deformation curve
6.1 Testing Machine—Any suitable testing machine capable
with a line represented by the initial tangent modulus offset
5 % of the fastener diameter. of operation at a constant rate of motion of its movable head
and having an accuracy of 61 % when calibrated in accor-
dance with Practice E4.
This test method is under the jurisdiction of ASTM Committee F16 on
6.2 Cylindrical Bearing Points—Any cylindrical metal
Fasteners and is the direct responsibility of Subcommittee F16.05 on Driven and
membercapableofsupportingthetestspecimenduringloading
Other Fasteners.
without deforming, as shown in Fig. 1, and having diameter
Current edition approved Nov. 1, 2013. Published March 2014. Originally
approved in 1995. Last previous edition approved in 2008 as F1575 – 03(2008).
(D) = 0.375 in.
DOI: 10.1520/F1575-03R13.
6.2.1 Cylindrical bearing points shall be free to rotate as the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
test specimen deforms.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
6.3 Cylindrical Load Point—Any cylindrical metal member
the ASTM website.
capable of loading the test specimen without deforming, as
The last approved version of this historical standard is referenced on
www.astm.org. shown in Fig. 1, and having diameter (D) = 0.375 in.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1575 − 03 (2013)
TABLE 1 Length Between Nail Bearing Points
Nail Nominal Diameter (in.), Length Between
tolerance per Specification Bearing Points (in.)
F1667
0.099 1.1
0.113 1.3
0.120 1.4
0.131 1.5
0.148 1.7
0.162 1.9
0.190 2.2
Larger than 0.190 11.5 times the nail diameter,
rounded to the nearest
tenth of an inch
Length between bearing points for nails with diameters other than shown
in Table 1 are the lengths for the next smaller listed diameter.
NOTE 1—Experience indicates that test results are sensitive to large
changes in bearing point spacing, s .
bp
9.1.2 The load shall be applied to the test specimen so that
FIG. 1 Center-Point Bending Test for Nails
the center of the cylindrical load point is equidistant from the
center of each cylindrical bearing point (s /2) as shown in Fig.
bp
6.4 Recording Device—Anydevicewithatleastareadingof
1.
0.001in.(0.025mm)andanysuitabledeviceformeasuringthe
9.1.3 Deformed-shank nails shall be placed on the cylindri-
load on the test specimen during deformation.
cal bearing points for testing so that the transition zone
between shank and thread is as close to the midpoint between
7. Sampling
the bearing points as possible.
7.1 Sampling shall provide for selection of representative
9.2 Loading:
test specimens that are appropriate to the objectives of the
9.2.1 The maximum constant rate of loading, r , shall be as
L
testing program.
follows:
8. Specimens and Tests
r 5 0.25 in./min
L
8.1 Tests for smooth shank nails shall be performed on
9.2.2 The procedures described herein are for static loading.
either the finished nail or a specimen of drawn wire stock from
Procedures to evaluate nails for impact or cyclic loads are not
which the nail would be manufactured. Tests for deformed-
a part of this test method.
shank nails shall be performed on the finished nail.
9.3 Load and Deformation Measurement—Measure the ap-
8.2 Diameter Measurement—Measure the actual diameter
plied load on and deformation of the test specimen from the
ofeachtestspecimenatthemidpointofitslengthtothenearest
initiation of load application and take readings of each at
0.001 in. (0.025 mm). The nail diameter shall be defined as
...
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