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GB/T 44511-2024Crashworthiness requirements and verification for urban rail transit vehicles (English PDF)

城市轨道交通车辆耐撞性要求及验证

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 29, 2024

Implementation date

April 1, 2025

Scope

GB/T 44511-2024 is the English-translated version of 城市轨道交通车辆耐撞性要求及验证.

GB/T 44511-2024 is the Chinese national standard covering the steel-wheel vehicle — metro, light rail and tram — judged by how it behaves in a collision: the crashworthiness design classes, the typical collision scenarios the design has to answer for, the passive safety requirements, the verification, and the deformable and rigid obstacles used in the impact and low-speed compression tests, where the concern is controlled energy absorption and the overriding that puts one car on top of another. The obstacle masses set in the annexes — 15 t and 7.5 t deformable, 3 t rigid — fix what a design has to survive before it can be called crashworthy. First edition, under the Ministry of Housing and Urban-Rural Development. In force from 1 April 2025. Issued on 29 September 2024, it has been in force since 1 April 2025.

Document preview — GB/T 44511-2024

National Standard of the People's Republic of China

ICS: 45.060.20
Classification: S 51

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Classification of vehicle crashworthiness design2
5 Typical collision scenarios3
6 Passive safety requirements3
7 Crashworthiness Verification11
Appendix A (Normative) 15 t Deformable obstacles13
Appendix B (Normative) 3 t rigid obstacles15
Appendix C (Normative) 7.5 t Deformable Obstacles16
Appendix D (Normative) Impact Test19
Appendix E (Normative) Low speed compression test22
References24

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 for standardization documents" Drafting is required.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee on Standardization of Urban Rail Transit (SAC/TC 290).

This document was drafted by: CRRC Tangshan Locomotive and Rolling Stock Co., Ltd., CRRC Corporation Limited, Dalian Jiaotong University, CRRC Changchun China Railway Vehicles Co., Ltd., CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., Central South University, Southwest Jiaotong University, Tianjin Railway Transportation Shanghai Shentong Metro Group Co., Ltd., Xiamen Rail Construction Development Group Co., Ltd., Hebei Xiong'an Rail Express Co., Ltd.

Limited Liability Company, Wuhan Metro Group Co., Ltd., and Zhengzhou Metro Group Co., Ltd.

The main drafters of this document are: Wang Zhiwei, Wang Huizi, Sun Yanbin, Tan Mu, Luo Chao, Gao Xiaoying, Zhu Jianchun, Jiang Chaoyong, Zhang Yunfeng, Liu Zhisheng, Yan Dawei, Jia Xujie, Xu Lian, Gao Guangjun, Lin Jianhui, Wang Qingyong, Wang Shenghua, Tao Yun, Wang Peng, Xiang Qinghe, Wu Anwei, Liu Li, Gao Ning.

Urban rail transit vehicle crashworthiness requirements and verification

1 Scope

This document specifies the crashworthiness design classification, typical collision scenarios, passive safety Requirements and crashworthiness verification.

This document applies to urban rail transit vehicles with steel wheel and steel rail systems, including subway vehicles, urban rapid rail vehicles, light rail vehicles and Tram.

2 Normative references

ISO 6487

3 Terms and definitions

The terms and definitions defined in CJ/T 353-2010, TB/T 3500-2018 and TB/T 3453.3-2016 and the following terms and definitions apply This document.

3.1 Passive safety

Adopt relevant systems or measures to reduce the impact of collision accidents. [Source. TB/T 3500-2018, 2.1]

3.2 Crashworthiness

The ability of a vehicle to absorb the energy of an impact in a controlled manner, mitigating the consequences of an impact and reducing the risk of injury to the occupants.

[Source. TB/T 3500-2018, 2.2, modified]

3.3 Collision scenario

Collision conditions specified for evaluating the crashworthiness of urban rail transit vehicles.

[Source. TB/T 3500-2018, 2.3, modified]

3.4 Overriding

The phenomenon in which one vehicle climbs onto another vehicle when a collision occurs.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 26 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 6487

Editions of GB/T 44511

Edition	Title	Revision	Status
GB/T 44511-2024	Crashworthiness requirements and verification for urban rail transit vehicles	current edition	Current

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