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GB/T 31258-2024: Specification of zip line Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 31258: Historical versions
Similar standardsGB/T 31258-2024: Specification of zip line---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT31258-2024GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 97.200.40 CCS Y 57 Replacing GB/T 31258-2014 Specification of Zip Line Issued on. MARCH 15, 2024 Implemented on. MARCH 1, 2025 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 6 2 Normative References... 6 3 Terms and Definitions... 7 4 Basic Requirements... 10 5 Inspection, Testing and Test... 20 6 Accompanying Documents, Marking, Packaging, Transportation and Storage... 24 Appendix A (normative) Calculation of Ice-wrapped Load of Steel Wire Ropes... 26 Appendix B (informative) Tension Calculation of Load Bearing Ropes Fixed at Both Ends... 281 ScopeThis document specifies the technical requirements, inspection, testing and test, accompanying documents, marking, packaging, transportation and storage of large-scale amusement facility zip line. This document is applicable to the design, manufacture, installation, modification, repair, test, inspection and testing of zip lines that carry no more than 4 people on single manned equipment.2 Normative ReferencesThe contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 191 Packaging - Pictorial Markings for Handling of Goods GB 5725 Safety Nets GB 8408-2018 Large-scale Amusement Device Safety Code GB/T 8918 Steel Wire Ropes for Important Purposes GB/T 9075 Code for Examination and Discard of Ropes for Ropeway GB/T 9969 General Principles for Preparation of Instructions for Use of Industrial Products GB/T 13384 General Specifications for Packing of Mechanical and Electrical Product GB/T 20050-2020 Inspection and Testing Specifications of Large-scale Amusement Device - General Principles GB/T 20306-2017 Amusement Devices Terminology GB/T 26722 Steel Wire Ropes for Ropeway GB/T 34370.9 Nondestructive Testing of Amusement Equipment - Part 9.Magnetic Flux Leakage Testing3 Terms and DefinitionsThe terms and definitions defined in GB/T 20306-2017, and the following are applicable to this document. 3.1 strop An amusement ride where passengers use tools, for example, pulleys, to slide along a wire rope relying on gravity or other traction. 3.2 load bearing rope A steel wire rope with two fixed ends, supported by a fixed wire rope metal structure, and carry the weight of the pulley, manned equipment and passengers. 3.3 waiting zone A preparation area where passengers put on their riding gear and read passenger instructions before riding the zip line. 3.4 unpowered zip line Instead of relying on the power system for traction (except for the recovery device), the strop relies on the conversion of potential energy into kinetic energy and moves along the load bearing rope. 3.6 strided distance The horizontal distance between the support points of the load bearing ropes at the upper and lower stations. 3.7 string incidence The acute angle between the string of the load bearing rope or the traction rope and the horizontal plane. [source. GB/T 20306-2017, 4.9.15, modified] 3.8 length The straight-line distance between the support points of the load bearing ropes at the upper and lower stations.4 Basic Requirements4.1 Basic Design Requirements 4.1.1 The zip line shall satisfy the provisions of GB 8408-2018.The design shall be correctly calculated, have a reasonable structure and be able to ensure the safety of passengers. The main technical parameters are length, running speed, height difference of the load bearing rope, number of passengers carried by each track, and number of zip line tracks, etc. 4.1.5 Zip line routes and sites shall not be built in miliary restricted areas, power line protected areas, mountain vents, or areas where avalanches, landslides, collapses, caves, storms, tsunamis, floods and fires, etc. may threaten the safety of zipline operation. 4.1.7 When designing the zip line, in accordance with the fixing method listed in Table 8 of GB 8408-2018, the end fixing efficiency shall be considered, and the safety factor of each component shall satisfy the following requirements. 4.1.8 The tower shall be designed in accordance with the provisions of GB 50017. 4.1.9 The zip line shall have rescue plane and rescue equipment for any foreseeable situation, and it shall be equipped with effective rescue equipment that can reach any position where the pulley may stagnate. 4.1.10 When designing zip lines, wind load effects should be considered. Wind load is divided into load under normal operating conditions and load under extreme operating conditions. The design of the zip lines shall be based on the maximum operating wind speed of 15 m/s to calculate the wind load under normal operating conditions. In the stationary state (extreme operating conditions), it shall be able to withstand the wind load provided by local meteorological data. The value and calculation method of wind load shall comply with the provisions of GB 50009. 4.2 Steel Wire Ropes 4.2.1 The steel wire ropes shall comply with the relevant provisions of GB/T 8918 or GB/T 26722.The load bearing rope shall adopt line contact or surface contact, steel core, galvanized or stainless-steel wire ropes, and the diameter shall not be less than 12 mm. The traction ropes shall adopt line contact, fiber core steel wire ropes, and the diameter shall not be less than 6 mm. The twisting direction shall be adapted to the actual operating conditions. 4.2.5 The load bearing ropes and traction ropes shall have tension adjustment devices and adjustment position marks. The fixed ends of the load bearing ropes at the departure and arrival stations shall take effective anti-loosening measures and set up secondary protection. 4.2.10 The replaced steel wire ropes shall be of the same type and specification as the originally installed steel wire ropes. The properties of the replaced steel wire ropes shall not be lower than those of the original steel wire ropes. 4.2.11 During use, the surface of the steel wire ropes shall be inspected at least monthly, so as to find damage to the steel wire ropes in a timely manner. The broken wires and wear of the steel wire ropes shall comply with the relevant requirements of Table 15 in GB 8408-2018, and there shall be no serious corrosion. 4.3 Taxiing Equipment 4.3.1 The taxiing equipment consists of pulleys and manned equipment. The common types of taxiing equipment are shown in Figure 4.The manned equipment includes passenger restraint devices, hanging webbings, lock buckles and passenger cabins, etc. The hanging part shall be provided with secondary protection.5 Inspection, Testing and Test5.1 Instruments and Equipment The inspection instruments and tools shall comply with the requirements of Appendix A in GB/T 20050-2020. 5.2 Test Data Inspection and test data of the zip lines shall be retained. 5.4 Inspection, Testing and Test Methods See Table 1 for specific inspection, testing and test methods.6 Accompanying Documents, Marking, Packaging, Transportation and Storage6.1 Accompanying Documents and Marking 6.1.1 Before product delivery, at least the following accompanying documents shall be included, and should be placed in the control cabinet packaging box or the main unit packaging box. 6.2 Packaging, Transportation and Storage 6.2.1 The packaging of zip line products and components shall comply with the relevant provisions of GB/T 191 and GB/T 13384. 6.2.2 During disassembly and transportation, the joints of the disassembled components should have clear corresponding permanent markings and numbers. 6.2.3 The exposed machining surface of ferrous metals shall be subjected to anti-rust treatment. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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