ASTM D4014-03

Standard Specification for Plain and Steel-Laminated Elastomeric Bearings for Bridges

SCOPE
1.1 This specification covers bearings, which consist of all elastomer or of alternate laminates of elastomer and steel, when the function of the bearings is to transfer loads or accommodate relative movement between a bridge superstructure and its supporting structure, or both.
1.2 The values stated in SI units are to be regarded as the standard.
Note 1—The words "elastomer" or "elastomeric" will be used interchangeably with the word "rubber" in this specification.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section B, 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.

General Information

• Status: Historical
• Publication Date: 09-Feb-2003
• ICS: 93.040 - Bridge construction
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.32 - Bridges and Structures

Relations

• Replaces: ASTM D4014-89(1995) - Standard Specification for Plain and Steel-Laminated Elastomeric Bearings for Bridges
• Effective Date: 10-Feb-2003
• Replaced By: ASTM D4014-03(2007) - Standard Specification for Plain and Steel-Laminated Elastomeric Bearings for Bridges
• Effective Date: 01-Dec-2007

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 4014 – 03
Standard Specification for
Plain and Steel-Laminated Elastomeric Bearings for
1
Bridges
This standard is issued under the fixed designation D4014; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 1418 Practice for Rubber and Rubber Latices—
3
Nomenclature
1.1 This specification covers bearings, which consist of all
D2000 Classification System for Rubber Products inAuto-
elastomer or of alternate laminates of elastomer and steel,
4
motive Applications
when the function of the bearings is to transfer loads or
D2137 Test Methods for Rubber Property—Brittleness
accommodate relative movement between a bridge superstruc-
3
Point of Flexible Polymers and Coated Fabrics
ture and its supporting structure, or both.
D 2240 Test Method for Rubber Property—Durometer
1.2 The values stated in SI units are to be regarded as the
3
Hardness
standard.
D3183 Practice for Rubber—Preparation of Pieces forTest
NOTE 1—The words “elastomer” or “elastomeric” will be used inter- 3
Purposes from Products
changeably with the word “rubber” in this specification.
5
E4 Practices for Force Verification of Testing Machines
1.3 The following safety hazards caveat pertains only to the
3. Terminology
test methods portion, Section B, of this specification: This
standarddoesnotpurporttoaddressallofthesafetyconcerns,
3.1 Definitions:
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
3.1.1 design load—the mean compressive stress applied to
of this standard to establish appropriate safety and health
the area of the steel laminate.
practices and determine the applicability of regulatory limita-
3.1.2 external load plate—a steel plate bonded to the top or
tions prior to use.
bottom elastomeric surface of a bearing, or both.
3.1.3 lot—unless otherwise specified in the contract or
2. Referenced Documents
purchaseorder,alotshallconsistofasingletypeofbearing,of
2.1 ASTM Standards:
the same design and material, submitted for inspection at the
2
A36/A36M Specification for Carbon Structural Steel
same time.
D395 Test Methods for Rubber Property—Compression
3.1.4 plain elastomeric bearing pad—a bearing that con-
3
Set
sists only of elastomeric material.
D412 Test Methods for Vulcanized Rubber and Thermo-
3.1.5 plain elastomeric sandwich bearing—a bearing that
3
plastic Elastomers—Tension
consistsofasinglelayerofelastomericmaterialbondedtoone
D518 Test Method for Rubber Deterioration—Surface
or two external load plates (3.1.2).
3
Cracking
3.1.6 steel-laminated elastomeric bearing—a bearing
D573 Test Method for Rubber—Deterioration in an Air
molded of elastomeric material with one or more steel lami-
3
Oven
nates embedded in and bonded to it, and to which one or two
D 832 Practice for Rubber Conditioning for Low-
external load plates (3.1.2) may be bonded.
3
Temperature Testing
4. Classification
D1149 Test Method for Rubber Deterioration Surface
3
Ozone Cracking in a Chamber
4.1 The bearings are furnished in four types as follows:
D1415 Test Method for Rubber Property—International
4.1.1 Plain Elastomeric Bearing Pad.
3
Hardness
4.1.2 Plain Elastomeric Sandwich Bearing.
4.1.3 Steel-Laminated Elastomeric Bearing.
4.1.4 Steel-Laminated Elastomeric Bearing with External
1
This specification is under the jurisdiction ofASTM Committee D04 on Road
Load Plate(s).
and Paving Materials and is the direct responsibility of Subcommittee D04.32 on
Bridges and Structures.
Current edition approved Feb. 10, 2003. Published May 2003. Orginally
approved in 1981. Last previous edition approved in 1995 as D4014-89 (1995).
2 4
Annual Book of ASTM Standards, Vol 01.04. Annual Book of ASTM Standards, Vol 09.02.
3 5
Annual Book of ASTM Standards, Vol 09.01. Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D4014–03
NOTE 2—Examplesofthetypesofelastomericbearingconstructionare
4.3.1 Grade 0—Suitable for continuous use down to+5°C.
given in Fig. 1.
4.3.2 Grade 2—Sub-zero temperatures occur at night and
NOTE 3—The adjective elastomeric is omitted in this specification
occasionally persist for no more than 1 or 2 days.
when referring to bearing types.
4.3.3 Grade 3—Sameas2butoccasionalperiodsofupto2
4.2 The elastomer for the manufacture of the bearing is
weeks continuously below zero.
furnished in two types as follows:
4.3.4 Grade5—Sub-zerotemperaturesdownto−40°Cper-
4.2.1 Type CR—Chloroprene rubber.
sisting for several months each year with up to 2 months
4.2.2 Type NR—Natural rubber.
...