ASTM D 5977 : 2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Specification for High Load Rotational Spherical Bearings for Bridges and Structures
Hardcopy , PDF
05-25-2023
English
07-13-2015
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
D 04
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| DocumentType |
Standard
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| Pages |
5
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| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1This specification covers bridge bearings that consist of a spherical rotational element, where a stainless steel convex surface slides against a concave carbon steel plate covered with woven or sheet polytetrafluoroethylene (PTFE). The function of the bearing is to transfer loads and to accommodate any relative movement, including rotation between a bridge superstructure and its supporting structure, or both.
1.2This specification covers the requirements of spherical bearings with a standard horizontal load (a maximum of 10 % of vertical).
1.3The requirements stated in this specification are the minima necessary for the manufacture of quality bearing devices. It may be necessary to increase these minimum values due to other design conditions.
1.4The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5The following safety hazards caveat pertains only to the test method portion, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.
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