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  • ASTM
    D5977-03(2007) Standard Specification for High Load Rotational Spherical Bearings for Bridges and Structures
    Edition: 2007
    Unlimited Users - 1 Loc per year

Description of ASTM-D5977 2007

ASTM D5977-03(2007)

Historical Standard: ASTM D5977-03(2007) Standard Specification for High Load Rotational Spherical Bearings for Bridges and Structures

SUPERSEDED (see Active link, below)

ASTM D5977

1. 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 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A36/A36M Specification for Carbon Structural Steel

A167 Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

A572/A572M Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

A588/A588M Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance

A709/A709M Specification for Structural Steel for Bridges

D638 Test Method for Tensile Properties of Plastics

D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

D1457 Specification for Polytetrafluoroethylene (Ptfe) Molding and Extrusion Materials

D1777 Test Method for Thickness of Textile Materials

D2256 Test Method for Tensile Properties of Yarns by the Single-Strand Method

AASHTO Standard


AWS Standards

D.1.5 ANSI/AASHTO/AWS Bridge Welding Code


bearing devices; high load rotational bearings; polytetrafluoroethylene (PTFE); spherical bearings ;

ICS Code

ICS Number Code 93.040 (Bridge construction)

DOI: 10.1520/D5977-03R07

ASTM International is a member of CrossRef.

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ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.