ASTM E2126-07a
(Test Method)Standard Test Methods for Cyclic (Reversed) Load Test for Shear Resistance of Vertical Elements of the Lateral Force Resisting Systems for Buildings
Standard Test Methods for Cyclic (Reversed) Load Test for Shear Resistance of Vertical Elements of the Lateral Force Resisting Systems for Buildings
SIGNIFICANCE AND USE
These test methods are intended to measure the performance of vertical elements of the lateral force resisting system subjected to earthquake loads. Since these loads are cyclic, the loading process simulates the actions and their effects on the specimens.
SCOPE
1.1 These test methods cover the evaluation of the shear stiffness, shear strength, and ductility of the vertical elements of lateral force resisting systems, including applicable shear connections and hold-down connections, under quasi-static cyclic (reversed) load conditions.
1.2 These test methods are intended for specimens constructed from wood or metal framing braced with solid sheathing or other methods or structural insulated panels.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E2126–07a
Standard Test Methods for
Cyclic (Reversed) Load Test for Shear Resistance of Vertical
Elements of the Lateral Force Resisting Systems for
1
Buildings
This standard is issued under the fixed designation E 2126; 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 E 631 Terminology of Building Constructions
2.2 International Organization for Standardization Stan-
1.1 These test methods cover the evaluation of the shear
dard:
stiffness, shear strength, and ductility of the vertical elements
ISO 16670:2003 Timber Structures—Joints Made with Me-
of lateral force resisting systems, including applicable shear
chanical Fasteners—Quasi-static Reversed-cyclic Test
connections and hold-down connections, under quasi-static
3
Method
cyclic (reversed) load conditions.
1.2 These test methods are intended for specimens con-
3. Terminology
structed from wood or metal framing braced with solid
3.1 For definitions of terms used in this standard, see
sheathing or other methods or structural insulated panels.
Terminology E 631.
1.3 The values stated in inch-pound units are to be regarded
3.2 Definitions of Terms Specific to This Standard:
as standard. The values given in parentheses are mathematical
3.2.1 ductility ratio, cyclic (D), n—the ratio of the ultimate
conversions to SI units that are provided for information only
displacement (D ) and the yield displacement (D )ofa
u yield
and are not considered standard.
specimen observed in cyclic test.
1.4 This standard does not purport to address all of the
3.2.2 elastic shear stiffness (K ) (see 9.1.4, Fig. 2), n—the
e
safety concerns, if any, associated with its use. It is the
resistance to deformation of a specimen in the elastic range
responsibility of the user of this standard to establish appro-
before the first major event (FME) is achieved, which can be
priate safety and health practices and determine the applica-
expressed as a slope measured by the ratio of the resisted shear
bility of regulatory limitations prior to use.
load to the corresponding displacement.
2. Referenced Documents 3.2.3 envelope curve (see Fig. 1), n—the locus of extremi-
2
ties of the load-displacement hysteresis loops. The envelope
2.1 ASTM Standards:
curve contains the peak loads from the first cycle of each phase
D 2395 Test Methods for Specific Gravity of Wood and
of the cyclic loading. Specimen displacement in the positive
Wood-Based Materials
direction produces a positive envelope curve; the negative
D 4442 TestMethodsforDirectMoistureContentMeasure-
specimen displacement produces a negative envelope curve.
ment of Wood and Wood-Base Materials
The positive direction is based on outward movement of the
D 4444 TestMethodsforUseandCalibrationofHand-Held
hydraulic actuator.
Moisture Meters
3.2.4 equivalent energy elastic-plastic (EEEP) curve (see
E 564 Practice for Static Load Test for Shear Resistance of
9.1.4, Fig. 2), n—an ideal elastic-plastic curve circumscribing
Framed Walls for Buildings
an area equal to the area enclosed by the envelope curve
E 575 Practice for Reporting Data from Structural Tests of
between the origin, the ultimate displacement, and the dis-
Building Constructions, Elements, Connections, and As-
placement axis. For monotonic tests, the observed load-
semblies
displacement curve is used to calculate the EEEP curve.
3.2.5 failure limit state, n—the point on the envelope curve
1 corresponding to the last data point with the absolute load
These test methods are under the jurisdiction of ASTM Committee E06 on
equal or greater than |0.8 P |, as illustrated in Fig. 2a.
Performance of Buildings and are the direct responsibility of Subcommittee E06.11
peak
on Horizontal and Vertical Structures/Structural Performance of Completed Struc-
3.2.6 failure load (P ), n—the load corresponding to the
u
tures.
failure limit state.
Current edition approved Dec. 1, 2007. Published January 2008. Originally
approved in 2001. Last previous edition approved in 2007 as E 2126 – 07
2
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
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E2126–07a
FIG. 1 Examples of Observed Hystere
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E2126–07 Designation:E2126–07a
Standard Test Methods for
Cyclic (Reversed) Load Test for Shear Resistance of Walls
for BuildingsCyclic (Reversed) Load Test for Shear
Resistance of Vertical Elements of the Lateral Force
1
Resisting Systems for Buildings
This standard is issued under the fixed designation E 2126; 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
1.1 These test methods cover the evaluation of the shear stiffness, shear strength, and ductility of a wall assembly, the vertical
elements of lateral force resisting systems, including applicable shear connections and hold-down connections, under quasi-static
cyclic (reversed) load conditions.
1.2 These test methods are intended for wall assemblies specimens constructed from wood or metal framing braced with solid
sheathing or other bracing methods or structural insulated panels.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 2395 Test Methods for Specific Gravity of Wood and Wood-Based Materials
D 4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
D 4444 Test Methods for Use and Calibration of Hand-Held Moisture Meters
E 564 Practice for Static Load Test for Shear Resistance of Framed Walls for Buildings
E 575 Practice for Reporting Data from Structural Tests of Building Constructions, Elements, Connections, and Assemblies
E 631 Terminology of Building Constructions
2.2 International Organization for Standardization Standard:
3
ISO 16670:2003 Timber Structures—Joints Made with Mechanical Fasteners—Quasi-static Reversed-cyclic Test Method
3. Terminology
3.1 For definitions of terms used in this standard, see Terminology E 631.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 ductilityfactor,monotonic(µ),n—theratiooftheultimatedisplacement(D )andtheyielddisplacement(D )observed
m yield
in monotonic test.
3.2.2ductility ratio, cyclic (D), n—the ratio of the ultimate displacement (D ) and the yield displacement (D ) observed in
u yield
cyclic test.
3.2.3) of a specimen observed in cyclic test.
3.2.2 elastic shear stiffness (K ) (see 9.1.4, Fig. 2), n—the resistance to deformation of a wallspecimen in the elastic range
e
before the first major event (FME) is achieved, which can be expressed as a slope measured by the ratio of the resisted shear load
to the corresponding displacement.
3.2.43.2.3 envelope curve (see Fig. 1), n—the locus of extremities of the load-displacement hysteresis loops. The envelope
curve contains the peak loads from the first cycle of each phase of the cyclic loading. WallSpecimen displacement in the positive
1
These test methods are under the jurisdiction of ASTM Committee E06 on Performance of Buildings and are the direct responsibility of Subcommittee E06.11 on
Horizontal and Vertical Structures/Structural Performance of Completed Structures .
Current edition approved JuneDec. 1, 2007. Published June 2007.January 2008. Originally approved in 2001. Last previous edition approved in 20052007 as E 2126 – 057
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E2126–07a
FIG. 1 Examples of Observed Hysteresis Curve and Envelope Curves for Method A
FIG. 1 Examples of Observed Hysteresis Curve and Envelope Curves for Method B (continued)
2
---------------------- Page: 2 ----------------------
E2126–07a
FIG
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.