1 Scope
This standard specifies design, manufacture and installation, safety requirements and test methods of bungy.
This standard is applicable to high-altitude bungy from fixed platform, ejection bungy and small bungy.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated reference, the latest edition (including all the amendments) applies.
GB 8408 Amusement Device Safety Code
GB 8918 Steel Wire Ropes for Important Purposes
GB/T 18204.15 Methods for Determination of Wind Speed in Public Places
GB/T 20306 Amusement Equipments Terminology
GB 50017 Code for Design of Steel Structures
3 Terms and Definitions
For the purpose of this document, terms and definitions given in GB/T 20306 and the following apply:
3.1
high-altitude bungy from fixed platform
amusement equipment that allows visitors to jump from high-altitude fixed towers or platforms with elastic ropes or other elastic members so as to jump and somersault in the air with the help of the flexibility of the rope or member
3.2
spring zone
the maximum motion space for the springer or his/her ride
3.3
safety space
spatial range with specified size outside the spring zone
3.4
spring space
the sum of the spring zone and the safety space
3.5
dynamic safety factor
safety factor calculated by taking the inertial acceleration of the object and other dynamic load (i.e., the load that changes with time) into consideration during the force analysis
3.6
static safety factor
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Design
5 Manufacture and Installation
6 Safety Requirements
7 Test Methods
Annex A (Informative) Spring Zone, Safety Space and Spring Space
Bibliography
1 Scope
This standard specifies design, manufacture and installation, safety requirements and test methods of bungy.
This standard is applicable to high-altitude bungy from fixed platform, ejection bungy and small bungy.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated reference, the latest edition (including all the amendments) applies.
GB 8408 Amusement Device Safety Code
GB 8918 Steel Wire Ropes for Important Purposes
GB/T 18204.15 Methods for Determination of Wind Speed in Public Places
GB/T 20306 Amusement Equipments Terminology
GB 50017 Code for Design of Steel Structures
3 Terms and Definitions
For the purpose of this document, terms and definitions given in GB/T 20306 and the following apply:
3.1
high-altitude bungy from fixed platform
amusement equipment that allows visitors to jump from high-altitude fixed towers or platforms with elastic ropes or other elastic members so as to jump and somersault in the air with the help of the flexibility of the rope or member
3.2
spring zone
the maximum motion space for the springer or his/her ride
3.3
safety space
spatial range with specified size outside the spring zone
3.4
spring space
the sum of the spring zone and the safety space
3.5
dynamic safety factor
safety factor calculated by taking the inertial acceleration of the object and other dynamic load (i.e., the load that changes with time) into consideration during the force analysis
3.6
static safety factor
Contents of GB/T 31257-2014
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Design
5 Manufacture and Installation
6 Safety Requirements
7 Test Methods
Annex A (Informative) Spring Zone, Safety Space and Spring Space
Bibliography
