ASTM A1044/A1044M-16a
(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 (Type 1) attached to a structural steel base rail by structural welding or stud welding, or double-headed studs (Type 2) mechanically crimped into a non-structural steel shape or attached to a steel plate by spot welding or tack welding. These stud assemblies are not intended for use as shear connectors in steel-concrete composite construction.
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 −16a
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* A615/A615MSpecificationforDeformedandPlainCarbon-
Steel Bars for Concrete Reinforcement
1.1 This specification covers steel stud assemblies for shear
A706/A706MSpecification for Deformed and Plain Low-
reinforcement of concrete. Stud assemblies consist of either
Alloy Steel Bars for Concrete Reinforcement
single-headed studs (Type 1) attached to a structural steel base
3
2.2 AWS Standard:
rail by structural welding or stud welding, or double-headed
AWS D1.1/D1.1M-2004Structural Welding Code—Steel
studs(Type2)mechanicallycrimpedintoanon-structuralsteel
4
2.3 U.S. Military Standards:
shape or attached to a steel plate by spot welding or tack
MIL-STD-129Marking for Shipment and Storage
welding. These stud assemblies are not intended for use as
MIL-STD-163SteelMillProductsPreparationforShipment
shear connectors in steel-concrete composite construction.
and Storage
NOTE 1—The configuration of the studs for stud assemblies is much
4
2.4 U.S. Federal Standard:
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
Fed. Std. No. 123Marking for Shipment (Civil Agencies)
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
3. Terminology
of the studs for stud assemblies to be at least 10 times the area of the
3.1 Definitions of Terms Specific to This Standard:
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- 3.1.1 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.
3.1.1.1 Discussion—Stud assemblies comprised of single-
1.2 This specification is applicable for orders in either
headed studs (Type 1) require a base rail; the base rail acts as
inch-pound units or in SI units.
a structural element to provide anchorage to the concrete. For
1.3 The values stated either in inch-pound or SI units are to
stud assemblies in which double-headed studs (Type 2) are
beregardedasstandard.Withinthetext,theSIunitsareshown
mechanically crimped into a steel shape, for example, into a
in brackets. The values stated in each system are not exact
steelchannel,thebaserailisnotrequiredtoprovideanchorage
equivalents; therefore, each system must be used indepen-
to the concrete; the purpose of the base rail is to hold the studs
dently of the other. Combining values from the two systems
in the appropriate location, direction, and spacing until the
may result in nonconformance with this specification.
concrete is cast. For stud assemblies in which double-headed
studs (Type 2) are attached to a steel plate by spot welding or
2. Referenced Documents
tack welding, the steel plate is not required to provide
2
2.1 ASTM Standards:
anchorage to the concrete; the purpose of the steel plate is to
A29/A29MSpecificationforGeneralRequirementsforSteel
hold the studs in the appropriate location, direction, and
Bars, Carbon and Alloy, Hot-Wrought
spacing until the concrete is cast.
A36/A36MSpecification for Carbon Structural Steel
3.1.2 headed stud, n—a steel bar used in the reinforcement
A370Test Methods and Definitions for Mechanical Testing
of concrete that has a head formed at one or both ends.
of Steel Products
4. Ordering Information
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
4.1 It shall be the responsibility of the purchaser to specify
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.05 on Steel Reinforcement. all requirements that are necessary for material ordered to this
Current edition approved March 1, 2016. Published May 2016. Originally
approved in 2005. Last previous edition approved in 2016 as A1044/A1044M–16.
3
DOI: 10.1520/A1044_A1044M-16A. Available from American Welding Society (AWS), 8669 NW 36 Street, #130,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Miami, FL 33166-6672, http://www.aws.org.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Standards volume information, refer to the standard’s Document Summary page on Section D, 700 R
...
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 − 16 A1044/A1044M − 16a
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*
1.1 This specification covers steel stud assemblies for shear reinforcement of concrete. Stud assemblies consist of either
single-headed studs (Type 1) attached to a structural steel base rail by structural welding or stud welding, or double-headed studs
(Type 2) mechanically crimped into a steel shape.non-structural steel shape or attached to a steel plate by spot welding or tack
welding. These stud assemblies are not intended for use as shear connectors in steel-concrete composite construction.
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
A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A706/A706M Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement
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.
3.1.1 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 Jan. 15, 2016March 1, 2016. Published January 2016May 2016. Originally approved in 2005. Last previous edition approved in 20152016 as
A1044/A1044M – 15.A1044/A1044M – 16. DOI: 10.1520/A1044_A1044M-16.10.1520/A1044_A1044M-16A.
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 American Welding Society (AWS), 8669 NW 36 Street, #130, Miami, FL 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, http://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, PA 19428-2959. United States
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A1044/A1044M − 16a
3.1.1.1 Discussion—
Stud assemblies comprised of single-headed studs (Type 1) require a base rail; the base rail acts as a structural element to provide
anchorage to the concrete. For stud assemblies in which
...
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