TB/T 3396.7-2015Test methods for fastening systems of high-speed railway - Part 7: Vertical load test for cast-in fastening components (English PDF)

Foreword

TB/T 3396 Test Methods for Fastening Systems of High-Speed Railway consists of the

following 7 parts:

--- Part 1: Determination of Longitudinal Rail Restraint;

--- Part 2: Determination for Clamping Force;

--- Part 3: Determination of Static Stiffness for Fastening Assembly;

--- Part 4: Test of Fatigue Performance of Fastening Assembly;

--- Part 5: Determination of Electrical Resistance;

--- Part 6: Effect of Severe Environmental Conditions;

--- Part 7: Vertical Load Test for Cast-in Fastening Components.

This Part is Part 7 of TB/T 3396.

This Part was drafted as per the rules specified in GB/T 1.1-2009.

This Part shall be under the jurisdiction of Institute of Standards and Metrology, China

Academy of Railway Sciences.

Drafting organizations of this Part: Railway Engineering Research Institute, China Academy of

Railway Sciences.

Chief drafting staffs of this Part: Zhao Rukang, Xiao Junheng, Fang Hangwei, Xu Shaohui, and

Li Zirui.

Test Methods for Fastening Systems of High-Speed Railway

– Part 7: Vertical Load Test for Cast-In Fastening Components

1 Scope

This Part specifies the indoor test method for the pull-out resistance for pre-embedded parts of

fastener.

This Part applies to fastening systems for high-speed railway.

2 Principle

A vertical load is applied to the pre-embedded parts of the fastener pre-embedded in the

concrete; and the pull-out resistance of the pre-embedded part is determined by the load

retention capacity during the test and the state of the joint between the pre-embedded part and

the concrete after the test.

3 Test Equipment

4 Test Piece

Sleeper with pre-embedded part of fastener, 1/2 sleeper or track slab (all described as sleeper

in this test method).

5 Test Procedures

For the pre-embedded casing where the embedded parts are screwed in by bolts, the load shall

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