GB/T 41492-2022Rubber spring isolator for floating slab of urban rail transit (English PDF)
城市轨道交通浮置板用橡胶弹簧隔振器
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
April 15, 2022
Implementation date
November 1, 2022
Scope
GB/T 41492-2022 is the English-translated version of 城市轨道交通浮置板用橡胶弹簧隔振器.
GB/T 41492-2022 is the Chinese national standard for the rubber spring isolators that carry the floating slab track of an urban railway.
It gives the structure and the model designation, the technical requirements - the static and dynamic stiffness, the load capacity, the fatigue life and the ageing and creep behaviour - the test methods, the inspection rules and the provisions on marking, packaging, transport and storage.
It applies to the production and inspection of these isolators, the parts that keep the vibration of a metro line out of the buildings above. Isolator makers, metro operators and track designers use it. Issued on 15 April 2022, it has applied since 1 November 2022.
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Document preview — GB/T 41492-2022
National Standard of the People's Republic of China
- ICS
- 83.140.99
- Classification
- G 47
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Structure and Model
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.
1 Scope
This document specifies the structure and model, technical requirements, test methods and inspection regulations of rubber spring vibration isolators for floating slabs of urban rail transit. regulations, marking, packaging, transportation and storage.
This document is applicable to the production and inspection of rubber spring vibration isolators for urban rail transit floating slabs.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.
GB/T 528 Determination of Tensile Stress-Strain Properties of Vulcanized Rubber or Thermoplastic Rubber
GB/T 529 Determination of Tear Strength of Vulcanized Rubber or Thermoplastic Rubber (trouser-shaped, right-angled and crescent-shaped samples)
GB/T 700 Carbon Structural Steel
GB/T 1690 Vulcanized rubber or thermoplastic rubber liquid resistance test method
GB/T 1804-2000 General Tolerances Unmarked Tolerances of Linear and Angular Dimensions
GB/T 2941 Rubber Physical Test Methods General Procedures for Specimen Preparation and Conditioning
GB/T 3512-2014 Vulcanized rubber or thermoplastic rubber hot air accelerated aging and heat resistance test
GB/T 3672.1-2002 Tolerances for Rubber Products Part 1: Dimensional Tolerances
GB/T 6414-2017 Dimensional tolerances, geometric tolerances and machining allowances of castings
GB/T 7759.1 Determination of Compression Set of Vulcanized Rubber or Thermoplastic Rubber Part 1: Under normal and high temperature conditions
GB/T 10125 Artificial Atmosphere Corrosion Test Salt Spray Test
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Rubber spring isolator
Applied to the floating slab track structure of urban rail transit, the use of rubber spring deformation energy consumption reduces the vibration isolation transmitted by the wheel-rail vibration to the surrounding element.
3.2 Loss factor
tanbeta In the dynamic load and time history, the tangent of the phase lag angle beta between the load and the deformation.
4 Structure and Model
4.1 Structure
The rubber spring vibration isolator is mainly composed of a rubber spring, a height adjusting device, and an outer sleeve. The structure is shown in Figure 1.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 23 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 528Rubber, vulcanized or thermoplastic -- Determination of tensile stress-strain properties
- GB/T 529Rubber, vulcanized or thermoplastic -- Determination of tear strength (Trouser, angle and crescent test pieces)
- GB/T 700Carbon structural steels
- GB/T 1690Rubber, vulcanized or thermoplastic—Determination of the effect of liquids
- GB/T 1804-2000General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications
- GB/T 2941Rubber - General procedures for preparing and conditioning test pieces for physical test methods
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Related Standards
GB/T 10125-2021 — Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 1690-2010 — Rubber, vulcanized or thermoplastic—Determination of the effect of liquids
GB/T 1804-2000 — General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications
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