GB 50127-2020 English PDFUS$2289.00 · In stock
Delivery: <= 12 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 50127-2020: Technical standard for aerial ropeway engineering Status: Valid GB 50127: Historical versions
Basic dataStandard ID: GB 50127-2020 (GB50127-2020)Description (Translated English): Technical standard for aerial ropeway engineering Sector / Industry: National Standard Classification of Chinese Standard: P52 Classification of International Standard: 93.110 Word Count Estimation: 177,167 Date of Issue: 2020-01-16 Date of Implementation: 2020-08-01 Older Standard (superseded by this standard): GB 50127-2007 Quoted Standard: GB 50007; GB 50017; GB 50135; GB 50191; GB 50205; GB 50231; NB/T 47013.3 Regulation (derived from): Ministry of Housing and Urban-Rural Development Announcement No. 45, 2020 Issuing agency(ies): Ministry of Housing and Urban-Rural Development of the People's Republic of China; State Administration for Market Regulation Summary: This standard is applicable to the design, construction and acceptance of new construction, expansion or reconstruction of double-line circulating freight ropeway, single-line circulating freight ropeway, double-line reciprocating passenger ropeway and single-line circulating passenger ropeway. GB 50127-2020: Technical standard for aerial ropeway engineering---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.1 General 1.0.1 This standard is formulated in order to improve the technical level of aerial ropeway engineering, implement national technical and economic policies, achieve advanced technology, economical rationality, energy conservation and environmental protection, and ensure project quality and safe operation. 1.0.2 This standard is applicable to the design, construction and acceptance of new construction, expansion or reconstruction of double-track circular freight ropeways, single-track circular freight ropeways, double-track reciprocating passenger ropeways and single-track circular passenger ropeways. 1.0.3 The transportation plan of the passenger cableway and freight cableway should be determined after a comprehensive comparison based on the construction conditions and technical conditions. 1.0.4 New technologies, new processes, new equipment and new materials involving personal safety shall be adopted in the project only after they have been tested or proven safe and reliable through production practice and qualified. 1.0.5 The construction of passenger cableway should be based on the principles of protecting ecology and landscape, coordinating with the natural environment and facilitating tourism. The site and route selection of the cableway should meet the overall planning or regional planning of the scenic spot and the requirements of environmental capacity management. 1.0.6 The design, construction and acceptance of the cableway project shall not only implement the provisions of this standard, but also comply with the provisions of the current relevant national standards. 2 Terminology and symbols2.1 Terminology 2.1.1 aerial ropeway aerial ropeway A transportation system in which steel wire ropes are erected on a supporting structure as a running track for transporting materials or personnel. 2.1.2 monocable circulating material ropeway There is only one carrying cable, which carries the trucks and circulates on the line, and is used for the cableway for transporting materials. 2.1.3 Bicable circulating material ropeway There are both load cables and traction cables, and the wagons circulate on the line, which is used to transport materials. 2.1.4 monocable circulating passenger ropeway There is only one carrying cable, which carries passenger cars and circulates on the line, and is used to transport people. Among them, according to the different structure types of the gripping device, it can be divided into single-line circulation detachable gripping device cabin (basket, hanging chair) type passenger ropeway and single-line looping fixed gripping device cabin (hanging basket, hanging chair) type passenger ropeway cableway. In addition, according to the different operation modes, it can be divided into single-cable fixed grip cabin type passenger ropeway and single-cable pulsating loop fixed grip car group passenger ropeway. 2.1.5 Bicable reversible passenger ropeway There are both load cables and traction cables, and passenger cars run reciprocatingly on the line, which is used to transport people. Among them, according to the different passenger car marshalling, it is divided into two-line reciprocating car passenger ropeway and two-line reciprocating car group passenger ropeway. 2.1.6 Truck bucket A vehicle for transporting materials. These mainly include rope grippers or running trolleys, booms or hangers, and cargo boxes. 2.1.7 Bus carrier Vehicles for transporting people. These mainly include rope grips or trolleys, booms or hangers, passenger compartments or other rides. Riding equipment can be divided into different forms such as carriages, cabins, hanging baskets, hanging chairs, and towing seats. 2.1.8 Grip grip The device connected to the carrying rope or pulling rope in a passenger car or a truck is called a gripper. Among them, the grips that do not need to be disengaged and tied with the wire rope when entering and leaving the station are called fixed grips; the grips that need to be disengaged and tied with the wire rope when entering and leaving the station are called detachable grips. 2.1.9 sliding resistance safety factor of grip The ratio of the anti-sliding force of the grip to the force component of the weight of the heavy vehicle along the direction of the wire rope at the maximum slope. 2.1.10 bracket trestle A support structure for supporting wire ropes in cableway stations and on lines. 2.1.11 transport capacity transport capacity One-way transport volume per unit time. 2.1.12 height difference vertical rise The difference in elevation between two stations or between two points on a line support. 2.1.13 Cable distance gauge The distance between the carrying cable or the center line of the carrying cable on both sides of the bracket is called the cable distance. For a double-cable track with double-loaded cables, the cable distance is the distance between the centerlines of the double-loaded cables on both sides of the support. 2.1.14 inclination angle The angle formed by the tangent of the wire rope suspension curve at the support point and the horizontal line is called the inclination angle. Among them, the inclination angle below the horizontal line of the support point is called positive inclination angle; the inclination angle above the horizontal line is called negative inclination angle. 2.1.15 entrance angle The angle formed by the tangent line of the load-bearing cable or the suspension curve of the load-carry cable at the support point of the station and the horizontal line is called the approach angle. Among them, if the entry angle is above the horizontal line, it is called an elevation angle entry; if the entry angle is below the horizontal line, it is called a depression angle entry. 2.1.16 Deflection sag The distance between any point on the suspension curve of the steel wire rope and the chord in the span in the vertical direction is called the deflection of the steel wire rope at that point. 2.1.17 driving section A transmission system consisting of an independent driving device and tensioning device or a combined driving and tensioning device and a winding wheel. 2.1.18 Tension section In a two-track circular freight ropeway route, the load-carrying rope is divided into several sections, each of which can be called a tension section. The station building between adjacent tensioning sections is called the tensioning section station. Among them, the tension at both ends of the load-bearing cable is called a double anchor station; the anchorage at both ends is called a double anchor station; 2.1.19 carrying rope The wire rope that bears the gravity of a passenger car or a truck without active movement is called a load-bearing cable. Among them, the load-bearing cable when there is no vehicle on the line is called an empty cable; the load-bearing cable when the line is full of empty vehicles according to the designed vehicle distance is called an empty cable; the line is filled with full-load vehicles according to the designed vehicle distance The load-bearing cables are called heavy-duty cables. 2.1.20 hauling rope Steel wire ropes that tow passenger cars or trucks running on load-bearing cables. 2.1.21 carrying cable carrying-hauling rope In a single-cable track, the steel wire rope used both for load and traction is called a carrying cable. Among them, the carrying cable when there is no vehicle on the line is called empty cable; the carrying cable when the line is filled with empty vehicles according to the designed vehicle distance is called empty cable; the line is filled with fully loaded vehicles according to the designed vehicle distance The carrying cable is called the heavy-duty cable. 2.1.22 Tension rope The steel wire rope connecting the tension trolley and the tension weight. 2.1.23 counter rope In the double-wire reciprocating passenger ropeway, the tensioning device is bypassed to connect the two reciprocating passenger cars, and it is a steel wire rope that balances the pulling force of the traction cable. 2.1.24 rescue rope When the ropeway breaks down, the traction rescue trolley transports the passengers stranded on the line to the wire rope of a safe place. 2.1.25 Tensile resistance safety factor of steel wire rope The ratio of the minimum breaking force of the wire rope to the maximum working force. 2.1.26 splice splice A connecting section that joins together the two ends of a hauling or carrying rope. 2.1.27 Sleeve socket The device that connects the wire rope is called a sleeve. Among them, the equipment that connects two load-bearing cables of the same specification is called the line sleeve; the equipment that connects the load-bearing cable and the tension cable is called the transition sleeve; the equipment that anchors one end of the load-bearing cable to the support, called the end sleeve. 2.1.28 saddle saddle The equipment supporting the load-bearing cable in the station or on the line support is called a saddle. Among them, the saddle that is fixed is called a fixed saddle; the saddle that can swing longitudinally at a certain angle on the vertical plane is called a swinging saddle; the saddle that can be bent horizontally and vertically on the saddle is called a Known as a skewed saddle. 2.1.29 support roller support roller The small-diameter sheave that bears the downward force of the carrying cable or the traction cable in the station or on the line support is called a supporting sheave. A wheel set consisting of 2 or more support wheels is called a support wheel set. 2.1.30 Compression roller The small-diameter sheave that bears the upward force of the carrying cable or traction cable in the station or on the line support is called a cable pulley. A wheel set consisting of 2 or more cable pressing wheels is called a cable pressing wheel set. 2.1.31 Combined roller battery for supporting cable and pressing cable combined wheel set A wheel set composed of a support wheel and a cable pulley. 2.1.32 Suspended haul rope support For a double-cable track with double load-bearing cables, the device used to support the traction cable or the balance cable is hoisted on the double-load cable within a large span. 2.1.33 protection bridge protection bridge A bridge-like protection facility built above the object to be protected. 2.1.34 Protection net protection net A net protection facility built above the object to be protected. 2.1.35 vertical rescue vertical rescue When the passenger cableway breaks down, rescue equipment is used to vertically drop the passengers stranded on the line to the ground or other facilities. 2.1.36 horizontal rescue horizontal rescue Transfer in the direction of the line to the rescue means in a nearby stand or station. 2.1.37 Rescue ropeway rescue ropeway When the passenger cableway cannot be operated, the passengers stranded on the line are rescued to a spare cableway to a safe place. 2.1.38 Station The start and end stations of the cableway line and the cableway facility stations connected in sections are called station houses. Usually, in a passenger ropeway, the end station with a higher elevation is called the upper station; the end station with a lower elevation is called the lower station. In the freight cableway, the station building for loading operation is called loading station; the station building for unloading operation is called unloading station. The station building set up when the cableway line changes direction is called a corner station; the corner station that uses mechanical equipment to automatically change the direction of the cableway line is called an automatic corner station. The detour station where passenger cars or trucks complete their work and return in the station is called detour station; the detour station where passenger cars or trucks complete their work and return automatically in the station is called automatic detour station. The station house with the drive device is called the drive station; the station house with the tension device is called the tension station. 2.1.39 driving device A device for driving a carrying or pulling rope. Among them, when the driving wheels are arranged horizontally, it is called a horizontal driving device; when the driving wheels are arranged vertically, it is called a vertical driving device. 2.1.40 Tension device The device used to adjust the carrying line, drag line or balance line so that it maintains the design tension. 2.1.41 Release device grip opening rail A device that can automatically disengage the detachable grip from the wire rope when the passenger car or truck enters the station. 2.1.42 Grip closing rail A device that enables the detachable grip to be automatically tied to the wire rope when the passenger car or truck leaves the station. 2.1.43 Roller roller Small-diameter sheaves to withstand less stress on the traction rope or to prevent chattering of the traction rope in double-cable endless freight ropeways. Among them, the group of rollers arranged vertically according to the radius of curvature of the wire rope is called a vertical roller group; the group of rollers arranged horizontally according to the radius of curvature of the wire rope is called a horizontal roller group. 2.1.44 driving sheave The sheave that drives the wire rope in the drive unit. 2.1.45 roundabout return sheave When one end station of the cableway adopts a movable driving and tensioning combination device, the other end station is a fixedly installed sheave. 2.1.46 guide wheel deflection sheave A sheave that guides the wire rope to change direction. 2.1.47 main drive main drive With independent power source and transmission mechanism, it is a drive system that can drive the cableway to operate normally under various load conditions. For double-track reciprocating passenger ropeways, the main drive should have the ability to frequently switch running directions; for single-line circular passenger ropeways, the main drive should mainly run in one direction, and should have low-speed reverse running performance when necessary. 2.1.48 emergency drive drive emergency When the cableway's external power supply, main electrical transmission or mechanical equipment partially fails, the backup power source is used to drive the transmission mechanism or part of the transmission mechanism in the main drive system, or it can be a separate drive system to move the passenger cars stranded on the line at low speed. Back to the drive system in the station. The system can only be used in emergency rescue and cannot be used for commercial operation. 2.1.49 rescue drive Separated from the main drive system, it has an independent power source and transmission mechanism. When the cableway fails, the traction rescue trolley will transfer the passengers stranded on the line to the nearby support or the drive system in the station. 2.1.50 Safety circuit safety control circuit A chain circuit composed of safety devices installed on the cableway line and in the station building to ensure the safe operation of the cableway. 2.2 Symbols 2.2.1 Basic parameters S - area; H - height difference; l—span, wheelbase, length; l'——slant distance, chord length; λ——car distance; υ——running speed. 2.2.2 Steel wire rope d——Nominal diameter of load-bearing cable, traction cable or carrier cable; σb——Nominal tensile strength of steel wire rope. 2.2.3 Traction calculation and equipment selection Q - gravity of heavy vehicle; QZ—concentrated load on the heavy vehicle side; qc——the gravity per meter of the bearing cable; q0——gravity per meter of traction cable or carrying cable; T0 - initial tension of the wire rope; Tmax - the maximum working tension of the wire rope; Tmin - the minimum working tension of the wire rope; TP - the average tensile force of the wire rope; W——hammer gravity; tr—— traction cable tension on the drive wheel entry side; tc——Traction force of traction cable on the driving wheel output side; f0——operating force coefficient of truck or passenger car; μ - coefficient of friction; p - specific pressure; [p]——allowable specific pressure, allowable radial load; D - the diameter of the sheave; R - radius of curvature; N - wheel pressure. 2.2.4 Circuit design f——deflection of inspection point; α—chord inclination; β——the inclination angle of empty cable; θ——heavy cable inclination angle; δ—total knuckle angle; ω—body shape coefficient; ε——the reduction coefficient of the wire rope to bear the wind force; k—reduction coefficient of friction force of load-carrying cable.3 Basic regulations for cableway engineering design3.1 Wind and snow load 3.1.1 The value of the basic wind pressure should meet the following requirements. 1 When the cableway is running, it should be 0.25kN/m2, and when the cableway is out of service, it should be 1.2kN/m2; 2 When the maximum wind speed is greater than 44m/s, the local maximum wind pressure value shall be taken. 3.1.2 The value of the body shape coefficient should meet the following requirements. 1 The shape coefficient of the sealed wire rope should be 1.2. 2 The shape coefficient of the unsealed steel wire rope should be 1.3. 3 The shape coefficient of the truck should be 1.4. 4 The body shape coefficient of passenger cars should be selected in accordance with the following regulations. 1) The body shape coefficient of the running trolley and the hanger should be 1.6; 2) The body shape coefficient of the carriage with rectangular section should be 1.2; 3) The body shape coefficient of the rectangular section sedan with rounded corners should be calculated according to the following formula. In the formula. ω—body shape coefficient; r - fillet radius (mm); l1——The length of the compartment (mm). 5.The shape coefficient of the support and cable pulley group should be 1.6. 6 The value of the shape coefficient of the hanging chair without cover should meet the following requirements. 1) For an empty chair lift, the body shape coefficient should be calculated according to the following formula. ω=(0.2+0.1n1)/S (3.1.2-2) 2) For a fully loaded lift, the body shape coefficient should be calculated according to the following formula. ω=(0.4+0.2n1)/S (3.1.2-3) In the formula. ω—body shape coefficient; n1——number of chair lifts; S——windward area (m2). 3.1.3 The calculated length of the steel wire rope under the wind force shall be calculated according to the following formula. lj=l'×ε (3.1.3) In the formula. lj——the calculated length of the steel wire rope under the wind force (m); l'—chord length (m); ε——The reduction coefficient of the wire rope to bear the wind force. When l'≤200m, ε should be 1.00; when l'=900m, ε should be 0.65; when l'≥2000m, ε should be 0.50; Or 900m ~.2000m, ε should be determined by linear interpolation method. 3.1.4 The ice density on the wire rope in ice and snow areas should be 600kg/m3, and the ice and snow load should meet the following requirements. 1 When the nominal diameter of the wire rope is not greater than 10mm, the thickness of the ice layer should be 20mm, and the corresponding ice and snow load should be 11.1N/m; 2 When the nominal diameter of the wire rope is not less than 100mm, the thickness of the ice layer should be 25mm, and the corresponding ice and snow load should be 57.8N/m; 3 When the nominal diameter of the steel wire rope is 10mm~100mm, the corresponding ice and snow load should be determined by linear interpolation method. 3.1.5 When wind ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 50127-2020_English be delivered?Answer: Upon your order, we will start to translate GB 50127-2020_English as soon as possible, and keep you informed of the progress. 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