1.1当支座的功能是传递荷载或调节桥梁上部结构与其支撑结构之间的相对运动时，本规范涵盖由所有弹性体或弹性体与钢交替层压而成的支座。 1.2以国际单位制表示的数值应视为标准。 注1 — “弹性体”或“弹性体”将与本规范中的“橡胶”互换使用。 1.3 以下安全隐患警告仅适用于本规范第B节试验方法部分: 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

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.