ASTM F1575-95
(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 – 95
Standard Test Method for
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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 deformation with a suitable testing machine. The load on the
test specimen at various intervals of deformation is measured.
1.1 This test method covers procedures for determining the
Supplementary physical properties of the test specimen are also
bending yield moment of nails when subjected to static
determined.
loading. It is intended only for nails used in engineered
connection applications, in which a required connection capac-
5. Significance and Use
ity is specified by the designer.
5.1 Nails are a common mechanical fastener in wood
1.2 This standard does not purport to address all of the
structures. Engineering design procedures used to determine
safety concerns, if any, associated with its use. It is the
the capacities of laterally-loaded nailed connections currently
responsibility of the user of this standard to establish appro-
use a yield theory to establish the nominal resistance for
priate safety and health practices and determine the applica-
laterally-loaded nailed connections that are engineered. In
bility of regulatory limitations prior to use.
order to develop the nominal resistance for laterally-loaded
2. Referenced Documents nailed connections the bending yield moment must be known.
2.1 ASTM Standards:
6. Apparatus
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E 4 Practices for Force Verification of Testing Machines
6.1 Testing Machine—Any suitable testing machine capable
3. Terminology of operation at a constant rate of motion of its movable head
and having an accuracy of 61 % when calibrated in accor-
3.1 Definitions of Terms Specific to This Standard:
dance with Practice E 4.
3.1.1 bending yield moment—the moment determined from
6.2 Cylindrical Bearing Points—Any cylindrical metal
the load-deformation curve that is intermediate between the
member capable of supporting the test specimen during loading
proportional limit and maximum load for the nail. It is
without deforming, as shown in Fig. 1, and having diameter
calculated by the intersection of the load-deformation curve
(D) 5 0.375 in.
with a line represented by the initial tangent modulus offset
6.2.1 Cylindrical bearing points shall be free to rotate as the
5 % of the fastener diameter.
test specimen deforms.
3.1.2 transition zone—the location of the transition from
6.3 Cylindrical Load Point—Any cylindrical metal member
smooth shank to threaded shank on a deformed-shank nail.
capable of loading the test specimen without deforming, as
3.1.3 true center line—the line passing through, and parallel
shown in Fig. 1, and having diameter (D) 5 0.375 in.
to, the center of the shank.
6.4 Recording Device—Any device with at least a reading
3.1.4 yield theory—the model for lateral load design values
of 0.001 in. (0.025 mm) and any suitable device for measuring
for dowel-type fasteners which specifically accounts for the
the load on the test specimen during deformation.
different ways these connections behave under load. The
capacity of the connection under each yield mode is deter-
7. Sampling
mined by the bearing strength of the material under the fastener
7.1 Sampling shall provide for selection of representative
and the bending strength of the fastener, with the lowest
test specimens that are appropriate to the objectives of the
capacity calculated for the various modes being taken as the
testing program.
design load for the connection.
8. Specimens and Tests
4. Summary of Test Method
8.1 Tests for smooth shank nails shall be performed on
4.1 Test specimens are evaluated to determine capacity to
either the finished nail or a specimen of drawn wire stock from
resist lateral bending loads applied at a constant rate of
which the nail would be manufactured. Tests for deformed-
shank nails shall be performed on the finished nail.
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This test method is under the jurisdiction of ASTM Committee F-16 on
8.2 Diameter Measurement—Measure the actual diameter
Fasteners and is the direct responsibility of Subcommittee F16.05 on Driven and
of each test specimen at the midpoint of its length to the nearest
Other Fasteners.
0.001 in. (0.025 mm). The nail diameter shall be defined as the
Current edition approved Jan. 15, 1995. Published March 1995.
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Annual Book of ASTM Standards, Vol 03.01. diameter of the unthreaded shank for partially deformed-shank
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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