ASTM A1044/A1044M-15
(Specification)Standard Specification for Steel Stud Assemblies for Shear Reinforcement of Concrete
Standard Specification for Steel Stud Assemblies for Shear Reinforcement of Concrete
SCOPE
1.1 This specification covers steel stud assemblies for shear reinforcement of concrete. Stud assemblies consist of either single-headed studs attached to a steel base rail by welding, or double-headed studs mechanically crimped into a steel shape.
Note 1: The configuration of the studs for stud assemblies is much different than the configuration of the headed-type studs prescribed in Section 7, Figure 7.1 of AWS D1.1/D1.1M. Ratios of the cross-sectional areas of the head-to-shank of the AWS D1.1/D1.1M studs range from about 2.5 to 4. In contrast, this specification requires the area of the head of the studs for stud assemblies to be at least 10 times the area of the shank. Thus, the standard headed-type studs in Section 7, Figure 7.1 of AWS D1.1/D1.1M do not conform to the requirements of this specification for use as stud assemblies for shear reinforcement.
1.2 This specification is applicable for orders in either inch-pound units or in SI units.
1.3 The values stated either in inch-pound or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.
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Designation:A1044/A1044M −15
StandardSpecification for
Steel Stud Assemblies for Shear Reinforcement of
1
Concrete
This standard is issued under the fixed designation A1044/A1044M; 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.
4
1. Scope* 2.3 U.S. Military Standards:
MIL-STD-129Marking for Shipment and Storage
1.1 This specification covers steel stud assemblies for shear
MIL-STD-163SteelMillProductsPreparationforShipment
reinforcement of concrete. Stud assemblies consist of either
and Storage
single-headed studs attached to a steel base rail by welding, or
4
2.4 U.S. Federal Standard:
double-headed studs mechanically crimped into a steel shape.
Fed. Std. No. 123Marking for Shipment (Civil Agencies)
NOTE 1—The configuration of the studs for stud assemblies is much
different than the configuration of the headed-type studs prescribed in
3. Terminology
Section 7, Figure 7.1 of AWS D1.1/D1.1M. Ratios of the cross-sectional
areas of the head-to-shank of the AWS D1.1/D1.1M studs range from
3.1 Definitions of Terms Specific to This Standard:
about 2.5 to 4. In contrast, this specification requires the area of the head
3.1.1 headed stud, n—a steel bar used in the reinforcement
of the studs for stud assemblies to be at least 10 times the area of the
of concrete that has a head formed at one or both ends.
shank. Thus, the standard headed-type studs in Section 7, Figure 7.1 of
AWS D1.1/D1.1M do not conform to the requirements of this specifica-
3.1.2 base rail, n—the steel shape or plate that a group of
tion for use as stud assemblies for shear reinforcement.
headed studs is attached to by welding or other means.
1.2 This specification is applicable for orders in either
3.1.2.1 Discussion—Stud assemblies comprised of single-
inch-pound units or in SI units.
headedstudsrequireabaserail;thebaserailactsasastructural
element to provide anchorage to the concrete. For stud assem-
1.3 The values stated either in inch-pound or SI units are to
blies in which double-headed studs are mechanically crimped
beregardedasstandard.Withinthetext,theSIunitsareshown
into a base rail, for example, into a steel channel, the base rail
in brackets. The values stated in each system are not exact
is not required to provide anchorage to the concrete; the
equivalents; therefore, each system must be used indepen-
purpose of the base rail is to hold the studs in the appropriate
dently of the other. Combining values from the two systems
location, direction, and spacing until the concrete is cast.
may result in nonconformance with this specification.
4. Ordering Information
2. Referenced Documents
2
4.1 It shall be the responsibility of the purchaser to specify
2.1 ASTM Standards:
all requirements that are necessary for material ordered to this
A29/A29MSpecificationforGeneralRequirementsforSteel
specification. Such requirements shall include but are not
Bars, Carbon and Alloy, Hot-Wrought
limited to the following:
A36/A36MSpecification for Carbon Structural Steel
4.1.1 Name of product: stud assemblies for shear reinforce-
A370Test Methods and Definitions for Mechanical Testing
ment of concrete,
of Steel Products
3
4.1.2 Quantity of studs by diameter,
2.2 AWS Standard:
4.1.3 Number of heads per stud,
AWS D1.1/D1.1M-2004Structural Welding Code—Steel
4.1.4 Dimensions of base rail, if included,
4.1.5 Overall height of stud assembly,
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
4.1.6 Number of studs per each assembly and their spacing
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
(see Note 2),
A01.05 on Steel Reinforcement.
4.1.7 Packaging, and
Current edition approved March 1, 2015. Published March 2015. Originally
approved in 2005. Last previous edition approved in 2010 as A1044/A1044M–05 4.1.8 ASTM designation and year of issue.
(2010). DOI: 10.1520/A1044_A1044M-15.
2
NOTE2—Inthecaseoforderingstudsratherthanassemblies,thelength
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
Standards volume information, refer to the standard’s Document Summary page on
4
the ASTM website. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
3
Available from American Welding Society (AWS), 8669 NW 36 Street, #130, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
Miami, FL 33166-6672, http://www.aws.org. dodssp.daps.dla.mil.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: A1044/A1044M − 05 (Reapproved 2010) A1044/A1044M − 15
Standard Specification for
Steel Stud Assemblies for Shear Reinforcement of
1
Concrete
This standard is issued under the fixed designation A1044/A1044M; 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 Scope*
1.1 This specification covers steel stud assemblies for shear reinforcement of concrete. Stud assemblies consist of either
single-headed studs attached to a steel base rail by welding, or double-headed studs mechanically crimped into a steel shape.
NOTE 1—The configuration of the studs for stud assemblies is much different than the configuration of the headed-type studs prescribed in Section 7,
Figure 7.1 of AWS D1.1/D1.1M. Ratios of the cross-sectional areas of the head-to-shank of the AWS D1.1/D1.1M studs range from about 2.5 to 4. In
contrast, this specification requires the area of the head of the studs for stud assemblies to be at least 10 times the area of the shank. Thus, the standard
headed-type studs in Section 7, Figure 7.1 of AWS D1.1/D1.1M do not conform to the requirements of this specification for use as stud assemblies for
shear reinforcement.
1.2 This specification is applicable for orders in either inch-pound units or in SI units.
1.3 The values stated either in inch-pound or SI units are to be regarded as standard. Within the text, the SI units are shown
in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the
other. Combining values from the two systems may result in nonconformance with this specification.
2. Referenced Documents
2
2.1 ASTM Standards:
A29/A29M Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
A36/A36M Specification for Carbon Structural Steel
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
3
2.2 AWS Standard:
AWS D1.1/D1.1M-2004 Structural Welding Code—Steel
4
2.3 U.S. Military Standards:
MIL-STD-129 Marking for Shipment and Storage
MIL-STD-163 Steel Mill Products Preparation for Shipment and Storage
4
2.4 U.S. Federal Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 headed stud, n—a steel bar used in the reinforcement of concrete that has a head formed at one or both ends.
3.1.2 base rail, n—the steel shape or plate that a group of headed studs is attached to by welding or other means.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.05
on Steel Reinforcement.
Current edition approved Nov. 1, 2010March 1, 2015. Published November 2010March 2015. Originally approved in 2005. Last previous edition approved in 20052010
as A1044/A1044M – 05.A1044/A1044M – 05 (2010). DOI: 10.1520/A1044_A1044M-05R10. 10.1520/A1044_A1044M-15.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from The American Welding Society (AWS), 550 NW LeJeune Rd., 8669 NW 36 Street, #130, Miami, FL 33126.33166-6672, http://www.aws.org.
4
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.19111-5098, http://
dodssp.daps.dla.mil.
3.1.2.1 Discussion—
Stud assemblies comprised of single-headed studs require a base rail; the base rail acts as a structural element to provide anchorage
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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A1044/A1044M − 15
to the concrete. For stud assemblies in which double-headed studs are mechanically crimped into a base rail, for example, into a
steel channel, the base rail is not required to provide anchorage to the concrete; the purpose of the base rail is to hold the studs
in the appropriate location, direction, and spacing until the concrete is cast.
4. Ordering Information
4.1 It shall be the responsibility of the purchaser t
...
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