Standard Method for Static Load Testing of Framed Floor or Roof Diaphragm Constructions for Buildings

SIGNIFICANCE AND USE
Framed floor and roof systems are tested by this test method for static shear capacity. This test method will help determine structural diaphragm properties needed for design purposes.
SCOPE
1.1 This test method covers procedures designed (1) to evaluate the static shear capacity of a typical segment of a framed diaphragm under simulated loading conditions, and ( 2) to provide a determination of the stiffness of the construction and its connections. A diaphragm construction is an assembly of materials designed to transmit shear forces in the plane of the construction.
1.2 No effort has been made to specify the test apparatus, as there are a number that can be used as long as the needs of the testing agency are met. If round-robin testing is to be conducted, test apparatus and testing procedures shall be mutually agreed upon in advance by the participants.
1.3 The text of this standard contains notes and footnotes that provide explanatory information and are not requirements of the standard. Notes and footnotes in tables and figures are requirements of this standard.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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 precautionary statements, see Section .

General Information

Status
Historical
Publication Date
31-Mar-2004
Current Stage
Ref Project

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ASTM E455-04 - Standard Method for Static Load Testing of Framed Floor or Roof Diaphragm Constructions for Buildings
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E455 – 04
Standard Test Method for
Static Load Testing of Framed Floor or Roof Diaphragm
1
Constructions for Buildings
This standard is issued under the fixed designation E455; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3. Terminology
1.1 This test method covers procedures designed (1)to 3.1 For definitions of terms used in this standard, refer to
evaluate the static shear capacity of a typical segment of a Terminology E631.
framed diaphragm under simulated loading conditions, and (2) 3.2 Symbols specific to this standard:
to provide a determination of the stiffness of the construction
and its connections. A diaphragm construction is an assembly
E = modulus of elasticity of flange or web mate-
of materials designed to transmit shear forces in the plane of
rial, depending upon which material is held
the construction.
constant in a transformed section analysis, psi
1.2 No effort has been made to specify the test apparatus, as
(or MPa)
there are a number that can be used as long as the needs of the
G = shear modulus of the web material, psi (or
testing agency are met. If round-robin testing is to be con-
MPa)
ducted, test apparatus and testing procedures shall be mutually
G8 = shear stiffness of the diaphragm obtained
agreed upon in advance by the participants.
from test (includes shear deformation factor
1.3 The text of this standard contains notes and footnotes
for the connection system), lbf/in. (or N/mm)
that provide explanatory information and are not requirements
I = moment of inertia of the transformed section
of the standard. Notes and footnotes in tables and figures are
of the diaphragm based on webs or flanges,
requirements of this standard. 4 4
in. (or mm )
1.4 The values stated in inch-pound units are to be regarded
L = total span of a simply supported diaphragm,
as the standard. The values given in parentheses are for
in. (or mm)
information only.
P = concentrated load, lbf (or N)
1.5 This standard does not purport to address all of the
R = maximum diaphragm reaction, lbf (or N)
u
safety concerns, if any, associated with its use. It is the
S = ultimate shear strength of the diaphragm,
u
responsibility of the user of this standard to establish appro-
lbf/ft (or N/m)
priate safety and health practices and determine the applica-
a = span length of cantilever diaphragm, in. (or
bility of regulatory limitations prior to use. For specific
mm)
precautionary statements, see Section 6. b = depth of diaphragm, in. (or mm)
t = thickness of web material, in. (or mm)
2. Referenced Documents
w = uniform load, lbf/in. (or N/mm)
2
D = bending deflection of diaphragm, in. (or mm)
2.1 ASTM Standards:
b
D = empirical expression for that portion of the
E631 Terminology of Building Constructions k
diaphragm deflection contributed by the shear
deformation of the connection system, in. (or
1 mm)
ThismethodisunderthejurisdictionofASTMCommitteeE06onPerformance
D = pure shear deformation of diaphragm, in. (or
of Buildings and is the direct responsibility of Subcommittee E06.11 on Horizontal
s
and Vertical Structures/Structural Performance of Completed Structures.
mm)
Current edition approved April 1, 2004. Published April 2004. Originally
D 8 = apparent total shear deformation of the dia-
s
approved in 1976. Last previous edition approved in 1998 as E455 – 98. DOI:
phragm based on test (see section 8.1.2.2), in.
10.1520/E0455-04.
2
(or mm). This factor includes both the pure
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
shear deformation and that contributed by
Standards volume information, refer to the standard’s Document Summary page on
distortion of the connection system.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E455 – 04
5. Significance and Use
D = total deflection of diaphragm, in. (or mm)
t
D = deformation measured at Point 1, 2,___,in.
1,2,___ 5.1 Framed floor and roof systems are tested by this test
(or mm)
method for static shear capacity. This test method will help
determine structural diaphragm properties needed for design
4. Summary of Method
purposes.
4.1 The general purpose of this test method is to evaluate
6. Apparatus
theshearforcesthatcanbecarriedbythewebofaframedfloor
or roof diaphragm assembly by testing a simulation of the 6.1 Test Assembly:
constr
...

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