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.

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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. Combining values from the two systems may result in non-conformance with 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. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

ASTM A970/A970M – 18

It is informational only and not an official aztm of the standard; the full text of the standard itself must be referred to for its use and application. Worldwide Standards We can source any standard from anywhere in the world. Failure mode shall be reported as partial or total fracture of the bar, the head, or the head-to-bar connection.

atsm In case of dissatisfaction with the results of the test, the manufacturer shall make claim for a rehearing within that time. Your basket is empty. Both specimens shall pass the tension test requirements of Section 6, or the production lot shall be rejected.

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The head dimensions found in editions prior to of this qstm The head shall either thread onto the bar directly, or it shall be held on the bar end by a nut and counternut. The requirements of this specification are only applicable to headed bars where the attachment of the head is accomplished by one of the methods listed in 1. The requirements of this speci?

ASTM A / AM – 06 Standard Specification for Headed Steel Bars for Concrete Reinforcement

One test at the start and one test at the end of each 8-h shift or less than 8-h production period or at random intervals during the production period shall be conducted. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. 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.

NOTE 4—The industry de?

Note 1—This specification is applicable for headed bars produced with welded, threaded, or forged heads and used for reinforcement of concrete structures. One metallographic examination and hardness survey should be carried out on a section of the head and welded or forged zone. The faster, easier way to work with standards.

Combining values from the two systems may result in non-conformance with the standard. Attachment can be accomplished through:.

Work Item s – proposed revisions of this standard.

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. Class A a70 been introduced for applications that only require the development of the minimum tensile strength of aa970 reinforcing bar. This type of diagnostic examination should be conducted prior to continuous production for each combination of bar and head materials that will be produced.

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Link to Active This link will always route to the current Active version of the standard. Carbon-steel reinforcing bars, cold-extruded threaded headed reinforcing 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 atm, low-alloy steel reinforcing bars, threaded headed reinforcing bars, welded headed reinforcing bars.

Standard Specification for Headed Steel Bars for Concrete Reinforcement

Work Item s – proposed revisions of this standard. 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. Class A headed steel bars ensure that the speci? Bend testing of the large bar sizes is subject to agreement between purchaser and manufacturer.

Thus, integrally forged headed bars are allowed to use either Speci?

ASTM A Headed Steel Bars锚固头钢筋标准_百度文库

Designers are cautioned to consult the speci? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

To achieve consistent performance of the attached head a97 welding, the bar material is limited to Speci? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

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