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TB/T 3396.7-2015 English PDF (TBT3396.7-2015)

TB/T 3396.7-2015 English PDF (TBT3396.7-2015)

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

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.
TB/T 3396.7-2015
TB
RAILWAY INDUSTRY STANDARD OF
THE PEOPLE REPUBLIC OF CHINA
ICS 45.080
S 12
Test Methods for Fastening Systems of High-Speed Railway
?€? Part 7: Vertical Load Test for Cast-In Fastening Components
ISSUED ON: JULY 15, 2015
IMPLEMENTED ON: FEBRUARY 01, 2016
Issued by: National Railway Administration of the PEOPLE Republic of China Table of Contents
Foreword ... 3
1 Scope ... 4
2 Principle ... 4
3 Test Equipment ... 4
4 Test Piece... 4
5 Test Procedures ... 4
6 Test Report ... 5
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
3.1 Loading equipment
The equipment with loading rate of 40kN/min~60kN/min, static loading capacity reaching 150kN, which applies the vertical load.
3.2 Load sensor
The instrument that applies load to the pre-embedded part, with accuracy of Class-1. 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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