ASTM D7147-11

Standard Specification for Testing and Establishing Allowable Loads of Joist Hangers

ABSTRACT
This specification covers a procedure for evaluating metal devices used for wood-to-wood, wood-to-concrete, wood-to-concrete masonry, and wood-to-steel joist, beam, and girder connections. It describes test methods for evaluating the capacities of joist hangers subject to vertical and torsional loading. Also, this specification provides a method of assigning allowable loads to joist hangers based on measured strength and deformation characteristics. Test specimens consisting of a length of joist supported by joist hangers attached to two headers are subjected to a vertical load by a suitable testing machine, while the vertical load and corresponding deflection of the joist are measured and recorded to provide load-slip data.
SCOPE
1.1 This specification covers a procedure for evaluating metal devices used for wood-to-wood, wood-to-concrete, wood-to-concrete masonry, and wood-to-steel connections. This method is intended for use with devices used to connect joists, beams, and girders together. These devices are commonly described as joist hangers.
1.2 This specification describes test methods for evaluating the capacities of joist hangers subject to vertical and torsional loading.
1.3 This specification provides a method of assigning allowable loads to joist hangers based on measured strength and deformation characteristics. Information obtained by the provisions of this specification is applicable to design when using the Allowable Stress Design method.
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

• Status: Historical
• Publication Date: 30-Sep-2011
• ICS: 91.190 - Building accessories
• Technical Committee: D07 - Wood
• Drafting Committee: D07.05 - Wood Assemblies

Relations

• Replaces: ASTM D7147-05 - Standard Specification for Testing and Establishing Allowable Loads of Joist Hangers
• Effective Date: 01-Oct-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D7147 −11
Standard Specification for
1
Testing and Establishing Allowable Loads of Joist Hangers
This standard is issued under the fixed designation D7147; 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 D4442 Test Methods for Direct Moisture Content Measure-
ment of Wood and Wood-Based Materials
1.1 This specification covers a procedure for evaluating
D5055 Specification for Establishing and Monitoring Struc-
metal devices used for wood-to-wood, wood-to-concrete,
tural Capacities of Prefabricated Wood I-Joists
wood-to-concrete masonry, and wood-to-steel connections.
D5456 Specification for Evaluation of Structural Composite
This method is intended for use with devices used to connect
Lumber Products
joists, beams, and girders together. These devices are com-
D7438 Practice for Field Calibration and Application of
monly described as joist hangers.
Hand-Held Moisture Meters
1.2 This specification describes test methods for evaluating
E4 Practices for Force Verification of Testing Machines
the capacities of joist hangers subject to vertical and torsional
E8 Test Methods for Tension Testing of Metallic Materials
loading.
E575 Practice for Reporting Data from Structural Tests of
Building Constructions, Elements, Connections, and As-
1.3 Thisspecificationprovidesamethodofassigningallow-
able loads to joist hangers based on measured strength and semblies
F606 Test Methods for Determining the Mechanical Proper-
deformation characteristics. Information obtained by the pro-
visions of this specification is applicable to design when using ties of Externally and Internally Threaded Fasteners,
Washers, and Rivets (Metric) F0606_F0606M
the Allowable Stress Design method.
F1470 Practice for Fastener Sampling for Specified Me-
1.4 This standard does not purport to address all of the
chanical Properties and Performance Inspection
safety concerns, if any, associated with its use. It is the
F1575 Test Method for Determining BendingYield Moment
responsibility of the user of this standard to establish appro-
of Nails
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 2.2 Other Standards:
ANSI/AF&PA NDS-2005 National Design Specification for
3
2. Referenced Documents
Wood Construction
2
2.1 ASTM Standards: North American Specification for the Design of Cold-
4
Formed Steel Structural Members, 2007
C31/C31M Practice for Making and Curing Concrete Test
Specimens in the Field ANSI/AISC 360–10 Specification for Structural Steel
5
Buildings, 2010
C39/C39M Test Method for Compressive Strength of Cylin-
drical Concrete Specimens ACI 318/318R-08 Building Code Requirements for Struc-
tural Concrete and Commentary
C1314 Test Method for Compressive Strength of Masonry
Prisms
3. Terminology
D9 Terminology Relating to Wood and Wood-Based Prod-
ucts
3.1 The following section defines terms used in this speci-
D2395 TestMethodsforDensityandSpecificGravity(Rela-
fication. See Terminology D9 for other terminology.
tive Density) of Wood and Wood-Based Materials
3.2 Definitions:
D3737 Practice for Establishing Allowable Properties for
3.2.1 header—a member supporting a joist hanger.Aheader
Structural Glued Laminated Timber (Glulam)
may also be referred to as a “supporting” member.
1
This specification is under the jurisdiction ofASTM Committee D07 on Wood
and is the direct responsibility of Subcommittee D07.05 on Wood Assemblies.
3
Current edition approved Oct. 1, 2011. Published November 2011. Last previous Available from American Forest and Paper Association (AF&PA), 1111 19th
edition approved in 2005 as D7147–05. DOI: 10.1520/D7147-11. St., NW, Suite 800, Washington, DC 20036.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American Iron and Steel Institute (AISI), 1101 17th St., NW,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Suite 1300, Washington, DC 20036.
5
Standards volume information, refer to the standard’s Document Summary page on Available from American Institute of Steel Construction (AISC), One E.
the ASTM website. Wacker Dr., Suite 3100, Chicago, IL 60601-2001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D7147−11
3.2.2 joist—a bending member supported by a joist hanger.
A joist may also be referred to as a “supported” member.
3.2.3 joist hanger—a metal device, usually cold-formed
from light-gage steel sheet or welded from steel plate, used to
transfer loads fr
...

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:D7147–05 Designation: D7147 – 11
Standard Specification for
1
Testing and Establishing Allowable Loads of Joist Hangers
This standard is issued under the fixed designation D7147; 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
1.1 This specification covers a procedure for evaluating metal devices used for wood-to-wood, wood-to-concrete, wood-to-
concrete masonry, and wood-to-steel connections. This method is intended for use with devices used to connect joists, beams, and
girders together. These devices are commonly described as joist hangers.
1.2 This specification describes test methods for evaluating the capacities of joist hangers subject to vertical and torsional
loading.
1.3 This specification provides a method of assigning allowable loads to joist hangers based on measured strength and
deformation characteristics. Information obtained by the provisions of this specification is applicable to design when using the
Allowable Stress Design method.
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:
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens C90Specification for Loadbearing
Concrete Masonry Units
C270Specification for Mortar for Unit Masonry
C1314 Test Method for Compressive Strength of Masonry Prisms
D9 Terminology Relating to Wood and Wood-Based Products D245Practice for Establishing Structural Grades and Related
Allowable Properties for Visually Graded Lumber
D2395 Test Methods for Specific Gravity of Wood and Wood-Based Materials
D3737 Practice for Establishing Allowable Properties for Structural Glued Laminated Timber (Glulam)
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials D4444Test Method for
Laboratory Standard-
ization and Calibration
of Hand-Held Mois-
ture Meters
D5055 Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists
D5456 Specification for Evaluation of Structural Composite Lumber Products
D7438 Practice for Field Calibration and Application of Hand-Held Moisture Meters
E4 Practices for Force Verification of Testing Machines
E8 Test Methods for Tension Testing of Metallic Materials
E575 Practice for Reporting Data from Structural Tests of Building Constructions, Elements, Connections, and Assemblies
F606 TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,Direct
Tension Indicators, and Rivets
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1575 Test Method for Determining Bending Yield Moment of Nails
2.2 Other Standards:
1
This specification is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.05 on Wood Assemblies.
Current edition approved April 1, 2005. Published April 2005. DOI: 10.1520/D7147-05.
Current edition approved Oct. 1, 2011. Published November 2011. Last previous edition approved in 2005 as D7147–05. DOI: 10.1520/D7147-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D7147 – 11
3
ANSI/AF&PA NDS-2001ANSI/AF&PA NDS-2005 National Design Specification for Wood Construction ANSI/ASME
B18.2.1Square and Hex Bolts and Screws (Inch Series), 1996
Specification and CommentaryNorth American Specification for the Design of Cold-Formed Steel Structural Members, 1996
4
2007
5
Specificationfor Structural Steel Buildings, 1989 ANSI/AISC 360–10 Specification for Structural Steel Buildings, 2010
ACI 318/318R-08 Building Code Requirements for Structural Concrete and Commentary
3. Terminology
3.1 The following section
...