T/CMES 37008-2025 Directives for the safety assessment of main load-bearing parts of large-scale amusement ride
Directives for the safety assessment of main load-bearing parts of large-scale amusement ride
1 Scope
This document specifies the requirements for the safety assessment of main load-bearing parts of large-scale amusement ride, including basic requirements, preparation for safety assessment, on-site inspection and testing, health status analysis and evaluation, theoretical estimation of remaining service life, comprehensive assessment of safety status, and the preparation of safety assessment records and reports.
This document is applicable to the main load-bearing parts of large-scale amusement ride as specified in GB 8408. It may serve as a reference for the safety assessment of main load-bearing parts of other amusement ride.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 8408 Large-scale amusement device safety code
GB/T 20050-2020 Inspection and testing specifications of large-scale amusement device - General principles
GB/T 20306 Amusement devices terminology
GB/T 34370.2 Nondestructive testing of amusement equipments - Part 2: Visual examination
GB/T 34370.3 Nondestructive testing of amusement equipments - Part 3: Magnetic particle testing
GB/T 34370.4 Nondestructive testing of amusement equipments - Part 4: Penetrant testing
GB/T 34370.5 Nondestructive testing of amusement equipments - Part 5: Ultrasonic testing
GB/T 34370.8 Nondestructive testing of amusement equipments - Part 8: Acoustic emission testing
GB/T 34371 Risk assessment for amusement ride - General principles
GB/T 36668.2 Condition monitoring and fault diagnostics of amusement device - Part 2: Acoustic emission monitoring method
GB/T 36668.3 Condition monitoring and fault diagnostics of amusement device - Part 3: Infrared thermography monitoring method
GB/T 36668.4 Condition monitoring and fault diagnostics of amusement device - Part 4: Vibration monitoring method
GB/T 36668.5 Condition monitoring and fault diagnostics of amusement device - Part 5: Stress detection and monitoring methods
GB/T 36668.6 Condition monitoring and fault diagnostics of amusement device - Part 6: Operating parameters monitoring method
GB/T 39043 Risk assessment for amusement ride - Hazard
GB/T 39079 Inspection and test specifications of large-scale amusement device - Acceleration test
GB/T 39417-2020 Health management of large-scale amusement device
GB 50017-2017 Standard for design of steel structures
3 Terms and definitions
For the purpose of this document, the terms and definitions given in GB/T 20306, GB/T 34371, GB/T 39043 and GB/T 39417, as well as the following apply.
3.1
main load-bearing parts
mechanical parts of large-scale amusement ride that bear the main loads and, in case of failure, may cause personal injury to passengers
Note: Main load-bearing parts may be classified into main load-bearing structural parts, main load-bearing pins, and main load-bearing standard parts. Reference may be made to the list of main load-bearing parts in the design document appraisal report and the operation and maintenance instructions. Annex A provides examples for main load-bearing parts of typical large-scale amusement ride.
3.2
safety assessment of main load-bearing parts
activity of conducting a comprehensive assessment on the safety status of main load-bearing parts of large-scale amusement ride through means such as technical file review, on-site inspection and testing, health status analysis and evaluation, and theoretical estimation of remaining service life
3.3
theoretical calculation service life
theoretical service life (in years, months, days, hours, or cycles) of main load-bearing parts, calculated based on methods such as theoretical analysis, calculation, or experimental research, taking into account the expected load conditions and the expected number of operating cycles of the equipment
3.4
design service life
expected service life (in years, months, days, hours, or cycles) for safe operation of the main load-bearing parts of the equipment, provided by the equipment manufacturer based on the theoretical calculation service life of the main load-bearing parts, taking into account factors such as equipment manufacturing, installation, operation, and maintenance
3.5
real service time
effective service time (in years, months, days, hours, or cycles) of the main load-bearing parts, calculated based on the actual operating time of the equipment (including the time for passengers getting on and off), with the completion of the initial installation supervision inspection of the large-scale amusement ride as the starting point
Note: If the equipment has been equipped with accurate and reliable counting or timing device, the statistics shall be based on such counting or timing device; otherwise, estimation shall be made according to 8h/d.
3.6
remaining service life
time (in years, months, days, hours, or cycles) that the main load-bearing parts can continue operating under expected operation and maintenance conditions, as given by the safety assessment
4 Basic requirements
4.1 Purpose of assessment
The purpose of the safety assessment of main load-bearing parts of large-scale amusement ride is to, on the basis of comprehensive inspection and testing, analyze and evaluate their health status, estimate their remaining service life, comprehensively assess their safety status, and propose suggestions for repair, replacement, or continued operation.
4.2 Assessment conditions
Safety assessment shall be carried out on main load-bearing parts of large-scale amusement ride under any of the following circumstances:
a) the main load-bearing parts have reached their design service life;
b) the complete equipment is to be returned to service after being out of service for more than one year;
c) the ride has been affected by extreme environmental conditions such as typhoons or earthquakes;
Contents
Foreword i
Introduction ii
1 Scope
2 Normative references
3 Terms and definitions
4 Basic requirements
4.1 Purpose of assessment
4.2 Assessment conditions
4.3 Assessment principles
4.4 Qualifications, responsibilities and instruments
4.5 Safety assessment procedure
5 Preparation for safety assessment
5.1 Technical file review
5.2 Determination of main load-bearing parts
5.3 Preparation of safety assessment scheme
6 On-site inspection and testing, health status analysis and evaluation
6.1 On-site inspection and testing
6.2 Health status analysis and evaluation
7 Theoretical estimation of remaining service life
7.1 Estimation principles
7.2 Theoretical estimation of remaining service life based on fatigue damage
7.3 Theoretical estimation of remaining service life based on wear or rusting damage
7.4 Determination of remaining service life
8 Comprehensive assessment of safety status
8.1 Comprehensive assessment
8.2 Suggestions for operation
9 Safety assessment records and reports
9.1 Safety assessment records
9.2 Safety assessment reports
Annex A (Informative) Examples for on-site inspection and testing of main load-bearing parts and complete equipment operating status of typical large-scale amusement ride
Annex B (Informative) Application examples for track structure safety assessment of roller coaster
