ASTM E73-83(2007)
(Practice)Standard Practice for Static Load Testing of Truss Assemblies
Standard Practice for Static Load Testing of Truss Assemblies
SIGNIFICANCE AND USE
This practice provides a guide to any individual, group, agency, or code body on the methods of test for truss assemblies fabricated from all types of construction materials. Sample size is generally kept to a minimum to reduce costs. The methods may be used to apply proof loads to an assembly or to test it to failure. Information obtained includes strength and stiffness data, and if assemblies are tested to their ultimate load carrying capacity, the failure method or mechanism can be observed.
SCOPE
1.1 This practice is intended as a guide for use in the testing of truss assemblies fabricated from all types of construction materials. While the practice may be used for the testing of a variety of assemblies, it is primarily intended to be used in the testing of those trusses designed to be spaced at 1.2 m (48 in.) centers or greater. It can be used, but it is not normally intended, for the testing of wood residential trussed rafters. Either proof tests or tests to destruction may be run.
1.2 Limitations—It is not intended that this practice be used for routine quality control testing.
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. For specific hazard statements, see Section 7.
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Standards Content (Sample)
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Designation: E73 − 83(Reapproved 2007)
Standard Practice for
1
Static Load Testing of Truss Assemblies
This standard is issued under the fixed designation E73; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope by change in momentum of the load and structural elements
can be neglected and all parts of the system at any instant are
1.1 This practice is intended as a guide for use in the testing
essentially in equilibrium.
of truss assemblies fabricated from all types of construction
materials. While the practice may be used for the testing of a 3.3 For other definitions in this practice, see Terminology
variety of assemblies, it is primarily intended to be used in the E631.
testing of those trusses designed to be spaced at 1.2 m (48 in.)
4. Summary of Practice
centers or greater. It can be used, but it is not normally
intended, for the testing of wood residential trussed rafters.
4.1 This practice outlines the procedures to be followed in
Either proof tests or tests to destruction may be run.
the static load testing of major load carrying truss assemblies.
While the procedure tells what to do, it does not tell the testing
1.2 Limitations—It is not intended that this practice be used
agency how to do it.This leaves the selection of the test fixture
for routine quality control testing.
and loading medium to the discretion of the testing agency.
1.3 This standard does not purport to address all of the
Materials selection, sampling, conditioning, fabrication, test
safety concerns, if any, associated with its use. It is the
procedures, and report requirements are covered.
responsibility of the user of this standard to establish appro-
4.2 Two types of tests may be conducted using this practice:
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For specific hazard 4.2.1 Proof Tests—A proof test is frequently made to pro-
vide assurance that the truss will support a stated load or to
statements, see Section 7.
determine the deformations and structural response under a
2. Referenced Documents
specified loading.
2
4.2.2 Test to Failure—In testing to failure, more detailed
2.1 ASTM Standards:
information is generally desired such as ultimate load carrying
E196 Practice for Gravity Load Testing of Floors and Low
capacity, total load-deflection history, yield point, connection
Slope Roofs
performance, factor of safety, etc.
E575 Practice for Reporting Data from Structural Tests of
4.2.3 If desired, either type of test may be extended to
Building Constructions, Elements, Connections, and As-
include a determination of the magnitude and distribution of
semblies
the stresses in the members and connections in order to permit
E631 Terminology of Building Constructions
a more comprehensive analysis of the truss performance.
3. Terminology
5. Significance and Use
3.1 truss—a coplanar system of structural elements joined
5.1 This practice provides a guide to any individual, group,
together at their ends usually to construct a series of triangles
agency, or code body on the methods of test for truss
that form a stable beam-like framework.
assemblies fabricated from all types of construction materials.
3.2 static load—a load or series of loads that are supported
Sample size is generally kept to a minimum to reduce costs.
by or are applied to a structure so gradually that forces caused
The methods may be used to apply proof loads to an assembly
or to test it to failure. Information obtained includes strength
1 and stiffness data, and if assemblies are tested to their ultimate
This practice is under the jurisdiction of ASTM Committee E06 on Perfor-
mance of Buildings and is the direct responsibility of Subcommittee E06.11 on
loadcarryingcapacity,thefailuremethodormechanismcanbe
Horizontal and Vertical Structures/Structural Performance of Completed Structures.
observed.
Current edition approved April 1, 2007. Published April 2007. Originally
approved in 1948. Last previous edition approved in 2002 as E73 – 83 (2002). DOI:
6. Test Apparatus
10.1520/E0073-83R07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1 General—While the methods described in this proce-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
dure are best suited to tests of trusses before installation in a
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. structure, they can also be applied to the testing of trusses after
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