What are the length, width and height of the material protection shed on the material elevator?

construction scheme of ×× material hoist I. General situation of the project This project is a ×× comprehensive building, located at the west end of Huaguang Road, in the courtyard of Hengxing Garden, with a total construction area of 5,8 square meters and a building area of 1,1 square meters. The total length of the project is 71.2 meters and the width is 16.44 meters. The drawings adopted are the design drawings of Zibo Architectural Design Institute, and the engineering drawing number is 21,47. The project mainly consists of business rooms and office buildings. The first and second floors are business rooms, the third and fourth floors are office rooms, and the local six floors are water tank rooms, with a total height of 25.8 meters. According to the engineering situation and construction site layout, two WSS8OB external hanging cages are set up in this project for material lifting and construction site layout. The use requirements of this project require that the installation height of the hoist is 21.6 meters, with 18 standard sections of * * *, each standard section is 1.2 meters, and the lifting frame body is 3.5 meters away from the building. 2. Safety requirements: 1. The hoist should have a product label, indicating the rated lifting weight, maximum lifting speed, maximum erection height, manufacturer, product number and factory date, with a product certificate attached. 2. After the installation of the hoist, it must be formally accepted, and it can only be put into use after the whole process is required. 3. Should be equipped with a full-time driver who has passed the examination and holds an operation certificate. It is strictly forbidden to boot without a license. 4. Both ends of the steel flower beam supporting the bridge at the derrick entrance and exit shall be fastened with No.14 lead wire, and fastened with Ф6 steel bars, and the bridge Fang shall be fastened with lead wire and flower beam. 5. The flat bridge (platform) connected to the building at the entrance and exit of the derrick must be firmly erected, and its width should not be less than that of the derrick. The flat bridge slab must be fully paved without gaps. Protective railings should be erected on both sides of the flat bridge (platform) and safety nets should be hung. The height of the guardrail from the surface of the flat bridge (platform) should be about 1.2m, and a crossbar should be added at least twice in the middle. The vertical distance between the guardrail and the building should be 4cm. 6. The derrick shall be protected by erecting a protective baffle or hanging a safety flat net above the entrance and exit of the floor, and an interlayer movable safety gate shall be set at the entrance and exit, and a safety operation regulation sign and warning sign shall be hung in a conspicuous place. 7. The three outer sides of the frame body should be hung with close-eye safety nets, and the overlap of safety nets should be less than 1cm, and they should be tied firmly. The gap between the guard bar and the plate should be greater than 5mm, and the height is the same as that of the frame body. 8. Operators are strictly forbidden to take the hanging basket for lifting. 9. During the installation and dismantling of the add-on, special personnel should be assigned to command, and a warning zone should be set up above the operation area and within 1m of the ground, and special personnel should be assigned to monitor it, and protective baffles should be set up near traffic roads or places where people operate. Third, the safety requirements of hoist mechanism 1. The selection and manufacture of hoist should meet the requirements of rated lifting weight, lifting height, lifting speed and other parameters. 2. The hoist should choose reversible hoist. 3. The distance from the flanges at both ends of the drum to the outermost wire rope should not be less than 2 times the diameter of the wire rope. The edge of the drum must be provided with a protective device to prevent the rope from falling out. 4. The ratio of drum diameter to wire rope diameter should be not less than 3. 5. The hoist complies with the current national standard "Building Hoist". 6. The ratio of pulley diameter to steel wire diameter of pulley block: the hoist should not be less than 25. 7. The pulley should be supported by rolling shaft. The pulley block and the frame (or hanging basket) should be rigidly connected, and it is forbidden to use rigid connection, flexible connection with wire rope and lead, and open-ended pull-plate skateboard. 8. Lifting steel rope shall not be used. The end and the drum should be pressed and fastened, and they should be arranged in order on the drum. When the hanging basket is at the lowest working position, the wire rope on the drum should be less than 3 turns. 9. The wire rope shall comply with the current national standard "Round Wire Rope" and have a certificate of approval. Iv. electrical safety requirements 1. the electrical equipment and components selected must meet the requirements of the working performance and working environment of the hoist, and have a certificate of approval. 2. The total power supply of the hoist should be equipped with short-circuit protection and leakage protection devices, and the electric main circuit should be equipped with short-circuit, voltage loss and overcurrent protection devices at the same time. 3. The resistance value of electrical equipment (including the resistance value to ground) must be greater than .5MΩ, and it must be greater than 1Ω/V in operation. 4. The metal structure of the hoist and the metal shell of all electrical equipment should be grounded, and the grounding resistance should be less than 1Ω. 5. When the height of the hoist exceeds the protection range of lightning protection devices of adjacent buildings, lightning protection devices should be installed according to the conditions stipulated in Article 4.4.2 of the current national standard "Technical Specification for Temporary Electricity Safety on Construction Sites" JG4688, and the grounding resistance should be less than 1Ω. 6. The working lighting switch shall be independent from the main power switch. When the power supply of the hoist is cut off, the working lighting should not be cut off. Each switch should be clearly marked. 7. It is forbidden to use the reverse switch as the control switch of the hoist. 8. The motor shall comply with the current national standard "Basic Technical Requirements for Motors" and have the factory certificate. 9. The production and assembly of the electrical equipment of the hoist shall conform to the current national standards, such as Technical Specification for Temporary Electricity Safety on Construction Site and Technical Requirements for Construction and Acceptance of Electrical Equipment Installation Project. V. Safety protection devices and safety requirements 1. The hoist should have the following safety protection devices and meet their requirements: ① Safety parking device. When the hanging basket is in place, the docking device locates the hanging basket. The device should reliably bear the self-weight, rated load of the hanging basket and the working load of the delivery personnel and loading and unloading. (2) broken rope protection device. When the hanging basket hangs or the rope breaks in the air, it can be reliably stopped and fixed on the frame. Its sliding stroke shall not exceed 1m when the hanging basket is fully loaded. ③ Upper limit stop (anti-ejection device). The device should be installed at the highest working position where the hanging basket is allowed to be lifted. The overtravel of the hanging basket (the distance from the highest position of the hanging basket to the lowest beam) should be less than 3m. When the hanging basket rises to the limit height, the limiter will act to cut off the electricity (referring to the reversible hoist) or give an automatic alarm. (4) the floor stop security door. All floors should be provided with safety doors for closing and stopping, and interlocking devices should be adopted (the hanging basket can only be opened when it is in place). The parking safety door can be made of steel pipe, and its strength should be able to bear the horizontal load of 1kn/m. (5) hanging basket before and after the security door. A safety door is installed at the feeding port of the hanging basket. The safety door should adopt interlocking opening device. When lifting, the safety door closes the feeding opening of the hanging basket to prevent materials from rolling down from the hanging basket. ⑥ Safety doors at the front and rear of hanging basket. Protective fences should be set at both sides of the hanging basket, and the protective fences should be closed by tool-type devices to prevent materials from rolling down from both sides of the hanging basket during lifting operation. ⑦ Protective shed at the top of hanging basket. A protective shed should be installed at the top of the basket, and the protective shed should be overlapped and opened in two directions, so as to facilitate the transportation of long materials and prevent people from falling from the basket when they enter the basket. ⑧ The protective shed in the first layer feeding. The protective shed shall be installed above the decent inlet of the hoisting frame, with a width greater than the outermost dimension of the hoist, a length greater than 3m for the low-frame hoist, and a material strength greater than 5m for the overhead hoist, which shall be able to bear the uniformly distributed load of 1kpa. It can also be erected with 5mm thick boards or with two layers of bamboo basketry, and the distance between upper and lower bamboo basketry shall be no less than 6mm. Pet-name ruby emergency power switch. The emergency power-off switch should be located at a position convenient for the driver to operate, and in case of emergency, it should be able to cut off the total control power supply of the hoist in time. Attending signal device. The device is a kind of ringing device controlled by the driver, and its volume should be able to be clearly heard by the people who use the hoist to load and unload materials on all floors. When the driver can't see the operator and the signal commander clearly, he must install a communication device. The communication device must be a closed-circuit two-way electrical communication system. The driver should be able to hear and speak to each station. 5. Foundation safety requirements: 1. The bearing capacity of the compacted soil layer shall be no less than 8kpa. 2. Pouring C2 concrete with a thickness of 5mm. 3. The foundation surface should be smooth, and the levelness deviation is not more than 1 mm.. 4. The foundation should be provided with drainage measures. Within the range of 5m from the foundation edge, measures must be taken to ensure the stability of the frame when excavating trenches or during construction with large vibration. 5. The setting of the wall frame attached to the hoist should meet the design requirements, and the interval should generally not be greater than 9m, and one group must be set at the top floor of the building. 6. The connection between the attached wall frame and the building structure should be designed, and a stable structure should be formed. It should not be connected to the scaffold, and lead wire binding is strictly prohibited. 7. The material of the attached wall frame should be the same as that of the frame body, and wooden poles and bamboo poles should not be used to connect the attached wall frame with the metal frame body. VI. Safety Requirements for Installation and Dismantling 1. General safety requirements (1) The vertical deviation of the installation of the newly-made hoist frame should not exceed 1.5 ‰ of the height of the frame; The deviation of the hoist used for many times should not exceed 3‰ and 2mm when reinstalled. (2) The tolerance of derrick section and diagonal length shall not exceed 3‰ of the nominal size of the maximum side length. (3) The installation clearance between the hanging basket guide shoe and the guide rail should be controlled within 5 ~ 1 mm.. (4) The contents to be checked before the demolition operation include: ① Check the connection between the hoist and buildings and scaffolding. ② Check whether there are other traction objects on the lifting frame body. (3) temporary attached to the wall frame, cable wind rope and ground anchor settings. ④ Connection between ground beam and foundation. 2. Safety requirements for installation and removal of the frame body (1) When installing the frame body, the ground beam should be firmly connected with the foundation. Every time two standard sections (generally not more than 4m) are installed, temporary support or temporary cable wind rope should be adopted to fix them, and initial correction should be made. Only when the stability is confirmed can the operation continue. (2) The bolts of each node of the frame body must be tightened, and the bolts should meet the requirements of aperture. It is forbidden to enlarge or open holes, and it is not allowed to miss or replace them with lead wires. (3) When working, the assembly and disassembly personnel must wear safety helmet, safety belt and non-slip shoes. Tools and equipment are not allowed to be delivered by throwing. When screwing the screws, it is not allowed to operate with both hands. You can only move the wrench with one hand and hold the frame bar with the other. (4) When dismantling the frame body, the hole of the frame body must be covered with pedals that can meet the requirements of use and safety, and both ends of the plate should be more than 1mm beyond the outer edge of the supporting position to ensure the safety of operation. (5) During the demolition operation, it is forbidden to throw objects down from a height. Demolition operation should be carried out during the day, and temporary stabilization measures should be taken when the operation is interrupted for some reason. 3. Safety requirements for hoist installation (1) The hoist should be installed in a flat and solid position, away from the dangerous operation area, and the line of sight should be good. (2) The anchor pile of the fixed hoist shall be firm and reliable, and trees and poles shall not be used to replace the anchor pile. (3) When the steel wire rope is in the middle position of the drum, the guide pulley at the bottom of the frame body should be perpendicular to the drum shaft, otherwise, an auxiliary guide pulley should be set and fastened with ground anchor and steel wire rope. (4) During the operation of hoisting wire rope, it should be erected to prevent it from mopping the ground and being soaked in water. When it is necessary to cross the main roads, trenches should be dug and protective measures should be taken. It is forbidden to pile materials in the area where the steel wire rope passes. (5) The distance between the first guide pulley and the winch installed away from the frame body should be 15 times greater than the width of the grooved drum and 2 times greater than that of the grooved drum. Seven, the use of safety and management requirements after the installation of the hoist, it should be designed by the competent department in accordance with the requirements for inspection and acceptance, and it can be delivered only after it is confirmed that it has been issued with a certificate of use. 1. The inspection before and during use shall include the following contents. (1) The inspection before and during use shall include the following contents: ① Whether the metal structure is welded and obviously deformed. ② Whether the connecting bolts of each node of the frame body are fastened. (3) attached to the wall frame, cable wind rope, anchor position and installation. ④ Whether the installation accuracy of the frame body is reasonable. ⑤ Reliability of electrical equipment and operating system. 6 hoist position is reasonable. ⑦ Reliability of electrical equipment and operating system. ⑧ Whether the use effect of signals and communication devices is good and clear. Pet-name ruby wire rope, pulley block fixed connection. Attending the safe distance and protection of hoist transmission line. (2) Regular inspection. Regular inspection shall be conducted once a month, with the participation of relevant departments and personnel. The inspection contents include: ① Whether the metal structure is welded, corroded or permanently deformed. ② Integrity of fastening of fasteners and bolts. (3) lifting mechanism device with and without steel wire integrity. (4) safety protection device without lack, failure and damage. ⑤ Cable wind rope, ground anchor, wall frame, etc. are loose, and ⑤ Sensitivity test of electrical protection device. (3) Daily inspection. The daily inspection shall be carried out by the operation driver before the shift, and the operation can only be started when the hoist is confirmed to be normal. The inspection contents include: ① Whether the connection between the ground anchor and the cable wind rope is loose. (2) no-load lifting basket to do an up-and-down movement, verify whether it is reliable, and at the same time hit the stopper and observe whether the safety door is sensitive and intact. (3) overhead hoist operation, communication device should be used to contact, low hoist in many types of work, most floors at the same time, should set up commanders, signal is not clear shall not be turned on. No matter who sends an emergency stop signal during the operation, it should be executed immediately. (4) when the hanging basket is suspended, the hoist driver shall not leave the driver's seat. ⑤ When the supporting safety device fails to support the hanging basket, it is forbidden for personnel to enter the hanging basket. ⑥ When the hanging basket is running, it is forbidden for personnel to extend any department of the body into the frame. Workers and personnel near the frame body shall not be close to the frame body. When using the combined frame, the staff entering the hanging basket should always pay attention to the operation of the adjacent hanging basket; People, materials and tools are not allowed to enter the adjacent frame. ⑦ The diagonal and crossbar of the frame body shall not be removed at will; If transportation is needed, only a few diagonal bars are allowed to be removed. The diagonal bars removed from the entrances and exits of each floor should be installed back on the upper or lower section of the removed opening section, and the opening is in a cross shape with the original diagonal bar of that section, but people are not allowed to be in two sections for continuous opening. And it is necessary to install temporary tie rods or supports rigidly anchored with buildings in appropriate places to ensure the rigidity and stability of the cage body. ⑧ Before closing the main power supply or when the operation suddenly loses power, all switches should be reset to zero. Before resuming operation, the elevator can be used again only after confirming its normal operation. Pet-name ruby found safety device, communication device failure, should immediately stop mechanical and electrical repair, operation shall not be arbitrarily use limit device. Attending to use often check the working condition of wire rope and pulley. If it is found that hemp is seriously worn, it must be replaced in time according to relevant regulations. The friction hoist is used as the power hoist. When the hanging basket descends, it should be controlled to land slowly at the place where the hanging basket is 1 ~ 2m above the ground, and the hanging basket is not allowed to fall freely and directly to the ground. After operation, lift the hanging basket to the ground, turn all control switches to zero, cut off the main power supply and lock the brake box. 2. Management requirements (1) The hoist should be regularly maintained and meet the following requirements. (1) the driver should be in accordance with the relevant provisions of the instruction manual, the elevator lubrication department, oil lubrication. ② During maintenance, all control switches should be turned to zero, the main power supply should be cut off, and a sign of "No Closing" should be hung at the switch box, and a special person should be assigned for supervision if necessary. (3) when the hoist is in working condition, maintenance and repair shall not be carried out, and troubleshooting shall be carried out after shutdown. ④ When replacing parts, the parts must have the same material performance as the original parts and meet the design and manufacturing standards. (5) covered electrode and weld quality used for maintenance of main structures shall meet the design requirements. ⑥ When repairing and maintaining the top of the lifting surface frame, a master platform should be erected, which should meet the requirements of the high-altitude work industry. (2) The hoist shall be managed by the equipment department in a unified way, and the hoist and frame shall not be managed separately. (3) When the metal structure is packed, it should be placed on the stow-wood, and stored outdoors, with waterproof and drainage measures. The storage of electrical appliances, instruments and wearing parts should be shockproof and moistureproof. (4) When transporting the parts of the hoist, the loading should be leveled to avoid bumping as much as possible, and at the same time, attention should be paid to the matching of each hoist. Agree with 7| comments