ASTM F1575-02
(Test Method)Standard Test Method for Determining Bending Yield Moment of Nails
Standard Test Method for Determining Bending Yield Moment of Nails
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 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.
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Designation: F 1575 – 02
Standard Test Method for
1
Determining Bending Yield Moment of Nails
This standard is issued under the fixed designation F 1575; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope * capacity calculated for the various modes being taken as the
design load for the connection.
1.1 This test method covers procedures for determining the
bending yield moment of nails when subjected to static
4. Summary of Test Method
loading. It is intended only for nails used in engineered
4.1 Test specimens are evaluated to determine capacity to
connection applications, in which a required connection capac-
resist lateral bending loads applied at a constant rate of
ity is specified by the designer.
deformation with a suitable testing machine. The load on the
1.2 This standard does not purport to address all of the
test specimen at various intervals of deformation is measured.
safety concerns, if any, associated with its use. It is the
Supplementary physical properties of the test specimen are also
responsibility of the user of this standard to establish appro-
determined.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance and Use
5.1 Nails are a common mechanical fastener in wood
2. Referenced Documents
structures. Engineering design procedures used to determine
2.1 ASTM Standards:
2 the capacities of laterally-loaded nailed connections currently
E 4 Practices for Force Verification of Testing Machines
use a yield theory to establish the nominal resistance for
F 1470 Guide for Fastener Sampling for Specified Mechani-
3 laterally-loaded nailed connections that are engineered. In
cal Properties and Performance Inspection
order to develop the nominal resistance for laterally-loaded
3. Terminology nailed connections, the bending yield moment must be known.
3.1 Definitions of Terms Specific to This Standard:
6. Apparatus
3.1.1 bending yield moment—the moment determined from
6.1 Testing Machine—Any suitable testing machine capable
the load-deformation curve that is intermediate between the
of operation at a constant rate of motion of its movable head
proportional limit and maximum load for the nail. It is
and having an accuracy of 61 % when calibrated in accor-
calculated by the intersection of the load-deformation curve
dance with Practice E 4.
with a line represented by the initial tangent modulus offset
6.2 Cylindrical Bearing Points—Any cylindrical metal
5 % of the fastener diameter.
member capable of supporting the test specimen during loading
3.1.2 transition zone—the location of the transition from
without deforming, as shown in Fig. 1, and having diameter
smooth shank to threaded shank on a deformed-shank nail.
(D) = 0.375 in.
3.1.3 true center line—the line passing through, and parallel
6.2.1 Cylindrical bearing points shall be free to rotate as the
to, the center of the shank.
test specimen deforms.
3.1.4 yield theory—the model for lateral load design values
6.3 Cylindrical Load Point—Any cylindrical metal member
for dowel-type fasteners that specifically accounts for the
capable of loading the test specimen without deforming, as
different ways these connections behave under load. The
shown in Fig. 1, and having diameter (D) = 0.375 in.
capacity of the connection under each yield mode is deter-
6.4 Recording Device—Any device with at least a reading
mined by the bearing strength of the material under the fastener
of 0.001 in. (0.025 mm) and any suitable device for measuring
and the bending strength of the fastener, with the lowest
the load on the test specimen during deformation.
1 7. Sampling
This test method is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.05 on Driven and
7.1 Sampling shall provide for selection of representative
Other Fasteners.
test specimens that are appropriate to the objectives of the
Current edition approved Oct. 10, 2002. Published December 2002. Originally
testing program.
approved in 1995. Last previous edition approved in 2001 as F 1575 – 01.
2
Annual Book of ASTM Standards, Vol 03.01.
3
Annual Book of ASTM Standards, Vol 01.08.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest
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