ASTM A970 PDF

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.

Author: Midal Zolora
Country: Andorra
Language: English (Spanish)
Genre: Relationship
Published (Last): 28 July 2015
Pages: 10
PDF File Size: 5.97 Mb
ePub File Size: 10.7 Mb
ISBN: 971-4-82939-773-6
Downloads: 42158
Price: Free* [*Free Regsitration Required]
Uploader: JoJozragore

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Combining values from the two systems may result in non-conformance with the standard. NOTE 4—The industry de? The head dimensions found in editions prior to of this speci?

Heads are forge formed, machined from bar stock, or cut from plate. One metallographic examination and hardness survey should be carried out on a section of the head and welded or forged zone. Material, manufacturing and testing requirements for the reinforcing bars shall be in accordance with other ASTM documents listed herein.

ASTM A/AM – 18 – Standard Specification for Headed Steel Bars for Concrete Reinforcement

No nominal head dimensions are now provided in the speci? You may experience issues viewing this site in Internet Explorer 9, 10 or Alternate head dimensions supplied by the manufacturer shall be permitted if agreed to in advance by the purchaser. 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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

In the previous criteria, the failure of the head or the head-to-bar connection within the attachment region was cause for rejection. Failure mode shall be reported as partial or total fracture of the bar, the head, or the head-to-bar connection. The data on this in-process monitoring should be recorded and preserved by the manufacturer for a minimum of one year after manufacture of the welded headed bars.

This specification is applicable for headed bars produced with welded, threaded, or forged heads and used for reinforcement of concrete structures.

  FLYING CHANGES SARA GRUEN PDF

Designers are cautioned to consult the speci? Notwithstanding the aatm of a signature, the organization submitting the EDI transmission is responsible for the content of the report.

The faster, easier way to work with standards. Work Item s – proposed revisions of this standard. This abstract is a brief summary of the referenced standard. In case of dissatisfaction with the results of the test, the manufacturer shall make claim for a rehearing within that time.

The head shall either thread onto the bar directly, or it shall be held on the bar end by a nut and counternut. Attachment can be accomplished through: Combining values from the two systems may result in non-conformance with the standard. Bend testing of welded headed bars in sizes No.

Search all products by. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of atm limitations prior to use.

Standard Specification for Headed Steel Bars for Concrete Reinforcement

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are ast provided as part of the 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. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

The requirements in Annex A1 only apply when specified by the purchaser see 4. ASTM International takes no a9700 respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Take the smart route to manage medical device compliance. The chemical composition requirements of the bar for a forging operation are such that low-alloy steel or carbon steels can be used.

We use cookies to make our website easier to use and to better understand your needs. This examination and survey should be used for diagnostic purposes in the event that later production xstm reveals unacceptable tension or bend test performance. Active view current version of standard. For machine straight threads, additional quality inspection of the a9700 steel will be required to eliminate bars that may be excessively out of round.

  DEFIANCE BY C.J.REDWINE PDF

Historical Version s – view previous versions of standard. Note 1 This specification is applicable for headed bars produced with welded, threaded, or forged heads and used for reinforcement of concrete structures.

The other option is for the head to have a non-threaded hole so that the head is held on the bar end by a nut and a counternut. A copy of the test report shall be provided to the purchaser upon request. Heads are forge formed, machined from bar stock, or cut from plate. This specification covers deformed and plain steel reinforcing bars in cut lengths with a head attached to one or both ends for reinforcing concrete structures.

This specification is applicable for headed bars produced with welded, threaded, or forged heads and used for reinforcement of concrete structures. 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.

ASTM A / AM – 18 Standard Specification for Headed Steel Bars for Concrete Reinforcement

Bend testing of the large bar sizes is subject to agreement between purchaser and manufacturer. In addition, the Structural Concrete Building Code Committee of the American Concrete Institute is currently working on developing design and detailing provisions for the use of headed bars in concrete structures. Note 1 This specification is applicable for headed bars produced with welded, threaded, or forged heads astk used for reinforcement of concrete structures. Where asttm welded head interferes with placement of the bend test mandrel, sufficient head material and any excess material associated with the welding process shall be removed along one edge of the reinforcing bar to provide a?

Ast, centerline of the bend test mandrel shall be placed at the intersection of the reinforcing bar and the weld, as shown in Fig.

VPN