A/AM – 07 Standard Specification for Headed Steel Bars for Concrete Reinforcement, carbon-steel reinforcing bars, concrete reinforcement. ASTM A Headed Steel Bars锚固头钢筋标准_自然科学_专业资料。Designation : A /A M – 07 Standard Speci?cation for Headed Steel. Terminator headed bar systems comply with the requirements of , and editions of ASTM A Class A. • The D6, D14, and D16 families of.
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Material, manufacturing and testing requirements for the reinforcing atsm shall be in accordance with other ASTM s970 listed herein. This examination and survey should be used for diagnostic purposes in the event that later production testing reveals unacceptable tension or bend test performance. These rules will provide designers with appropriate guidance for the design of structures using headed reinforcing bars so that the anchorages remain ductile, even under earthquake loading.
Learn more about the cookies we use and how to change your settings. Frequency of Testing 7. Ashm you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
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ASTM A970/A970M – 18
The faster, easier way to work with standards. Designers should be cognizant that the head sizes must be evaluated to ensure that adequate anchorage is provided, that the steel and concrete stresses a9970 not excessive for the loadings, and that the detailing of the connection is consistent with the intended usage.
Historical Version s – view previous versions of standard. Within the text, the SI units are shown in brackets. The requirements in Annex Astmm only apply when specified by the purchaser see 4.
Originally approved in Nominal head dimensions were previously provided to inform manufacturers of these systems as to typical head dimensions. The information should be traceable to speci?
Standard Specification for Headed Steel Bars for Concrete Reinforcement
This abstract is a brief summary of the referenced standard. Carbon-steel reinforcing bars, cold-extruded threaded headed a9770 bars, cold-swaged coupling sleeve headed reinforcing bars, cold-swaged external sleeve headed reinforcing bars, cold-swaged headed sleeve reinforcing bars, concrete reinforcement, deformations protrusionsferrous-filled headed reinforcing bars, headed reinforcement, headed reinforcing bars, integrally-forged headed reinforcing bars, low-alloy steel reinforcing bars, threaded headed reinforcing bars, welded headed reinforcing bars.
To achieve consistent performance of the attached head by welding, the bar material is limited to Speci?
Work Item s – proposed revisions of this standard. Attachment can be accomplished through welding or forging of heads onto the bar ends, by internal threads in the head mating to threads on the bar end or by a separate threaded nut to secure the head to the bar.
Note 1—This specification is applicable for headed bars produced with welded, threaded, or forged heads and used for reinforcement of concrete structures. A minimum of two tests shall be conducted during the production shift or period.
Active view current version of standard. In either case the threads should be carefully cut or rolled so that the engagement of the threads results in a uniform load in the head-to-bar connection.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Please download Chrome or Firefox or view our browser tips. Note 1 This specification is applicable for headed bars produced with welded, threaded, or forged heads and used for reinforcement of concrete structures. The required mandrel dimensions for bend testing are prescribed in Table 1.
ASTM A Headed Steel Bars锚固头钢筋标准_百度文库
The requirements in Annex Atsm only apply when specified by the purchaser see 4. The head dimensions found in editions prior to of this speci? Your comments are invited either for revision of this standard or for s970 standards and should be addressed to ASTM International Headquarters. During production tests of welded, forged, or threaded bars, if any tensile test specimen fails to not meet the requirements for tensile properties in 6.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
ASTM A/AM – 18 – Standard Specification for Headed Steel Bars for Concrete Reinforcement
Your basket is empty. A copy of the test report shall be provided to the purchaser upon request. Failure mode shall be reported as partial or total fracture of the bar, the head, or the head-to-bar connection.