Standard Historical Last Updated: Aug 16, 2017 Track Document
ASTM D5977-96

Standard Specification for High Load Rotational Spherical Bearings for Bridges and Structures

Standard Specification for High Load Rotational Spherical Bearings for Bridges and Structures D5977-96 ASTM|D5977-96|en-US Standard Specification for High Load Rotational Spherical Bearings for Bridges and Structures Standard new BOS Vol. 04.03 Committee D04
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Scope

1.1 This 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.

1.2 This specification covers the requirements of spherical bearings with a standard horizontal load (a maximum of 10% of vertical).

1.3 The 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.

1.4 The values stated in both inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 The 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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Details
Book of Standards Volume: 04.03
Developed by Subcommittee: D04.32
Pages: 4
DOI: 10.1520/D5977-96
ICS Code: 93.040