ASTM E455-16

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E455 − 16
Standard Test Method for
Static Load Testing of Framed Floor or Roof Diaphragm
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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.
1. Scope E575 Practice for Reporting Data from Structural Tests of
Building Constructions, Elements, Connections, and As-
1.1 This test method covers procedures designed (1)to
semblies
evaluate the static shear capacity of a typical segment of a
E631 Terminology of Building Constructions
framed diaphragm under simulated loading conditions, and (2)
to provide a determination of the stiffness of the construction
3. Terminology
and its connections. A diaphragm construction is an assembly
of materials designed to transmit shear forces in the plane of
3.1 For definitions of terms used in this standard, refer to
the construction.
Terminology E631.
1.2 No effort has been made to specify the test apparatus, as
3.2 Definitions of Terms Specific to This Standard:
there are a number that can be used as long as the needs of the
3.2.1 deflection—in-plane deformation (distortion) of a dia-
testing agency are met. If round-robin testing is to be
phragm due to bending and shear excluding translational
conducted, test apparatus and testing procedures shall be
displacement due to movement of supports.
mutually agreed upon in advance by the participants.
3.2.2 diaphragm—horizontal or sloped system acting to
1.3 The text of this standard contains notes and footnotes
transmit lateral forces to the vertical resisting elements.
that provide explanatory information and are not requirements
3.2.2.1 Discussion—Adiaphragm is analogous to a horizon-
of the standard. Notes and footnotes in tables and figures are
tal deep beam with interconnected membrane elements such as
requirements of this standard.
panels, sheathing, or cladding acting as the deep beam web,
1.4 The values stated in inch-pound units are to be regarded
intermediate elements such as joists acting as web stiffeners,
as standard. The values given in parentheses are mathematical andperimeterboundaryelementssuchasgirdersactingasdeep
conversions to SI units that are provided for information only
beam chords.
and are not considered standard.
3.2.3 displacement—the distance between the initial and the
1.5 This standard does not purport to address all of the
final position of a point on the diaphragm in a given direction.
safety concerns, if any, associated with its use. It is the
3.3 Symbols Specific to This Standard:
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
E = modulus of elasticity of flange or web material,
bility of regulatory limitations prior to use. For specific
depending upon which material is held constant in
precautionary statements, see Section 6.
a transformed section analysis, psi (or MPa).
G = shear modulus of the web material, psi (or MPa).
2. Referenced Documents
G' = apparent shear stiffness of the diaphragm, which is
2
derived from the apparent shear deflection of the
2.1 ASTM Standards:
diaphragm, lbf/in. (or N/mm).
I = momentofinertiaofthetransformedsectionofthe
4
diaphragm based on webs or flanges, in. (or
1
This test method is under the jurisdiction of ASTM Committee E06 on
4
Performance of Buildings and is the direct responsibility of Subcommittee E06.11 mm ).
on Horizontal and Vertical Structures/Structural Performance of Completed Struc-
L = total span of diaphragm, in. (or mm).
tures.
P = concentrated load, lbf (or N).
Current edition approved April 1, 2016. Published May 2016. Originally
P = maximum jack load applied to test frame, lbf (or
max
approved in 1976. Last previous edition approved in 2011 as E455 – 11. DOI:
N).
10.1520/E0455-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or R = maximum diaphragm reaction, lbf (or N).
u
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
S = ultimate shear strength of the diaphragm, lbf/ft (or
u
Standards volume information, refer to the standard’s Document Summary page on
N/m).
the ASTM website.
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E455 − 16
the line of applied load act as the flanges of the deep beam, and
b = depth of diaphragm parallel to applied loads, in.
the plate or panel elements act as the web of the deep beam,
(or mm).
and the framing members act as web stiffeners. A schematic
t = thickness of we
...