Method for efficient beam moving of mobile beam lifting machine

Abstract

The present invention discloses a method for efficiently moving beams using a mobile beam lifting machine, which relates to the technical field of bridge construction. It aims to solve the technical problems in the current technology that the beam moving process is full of obstacles, the lifting time of a single beam is long, and it is difficult to meet the tight schedule and heavy tasks of large-scale beam and slab lifting in bridge construction. The method comprises the following steps: assembling the beam lifting machine, and selecting a suitable gantry crane and wire rope according to the specifications and weight of the beam lifting machine components. In the process of lifting and moving, the present invention is closely connected in each step, such as quickly entering the lifting link after the trial lifting is checked to be correct, and the lifting and moving operations are smooth and orderly, reducing unnecessary waiting time. Its unique equipment parameters and operation flow design make the beam moving process smooth. Compared with the traditional beam moving method, the present invention greatly shortens the lifting time of a single beam, significantly improves the overall construction efficiency, can effectively meet the schedule requirements of large-scale beam and slab lifting in bridge construction, and accelerates the progress of the project.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and more particularly to a method for efficiently moving beams using a mobile beam lifting machine. Background Art

[0002] In the process of vigorous development of modern bridge construction, the prefabrication and lifting of beams and slabs are crucial. The mobile beam lifting machine's efficient beam moving technology has emerged as the times require, becoming the core force to promote efficient and safe construction of bridge projects. The mobile beam lifting machine, with its exquisite design and powerful functions, can achieve accurate lifting and rapid transfer of prefabricated beams and slabs. It uses a professional lifting system to firmly grasp the beams and slabs based on the principles of mechanics, and with its efficient walking mechanism, it can flexibly shuttle around the site to ensure efficient transportation of beams and slabs from the prefabrication area to the beam storage area or the bridge erection machine location, ensuring a smooth construction process.

[0003] However, the existing technology has poor continuity between the steps in the lifting and traveling links. After the trial lifting is completed, it is often difficult to quickly carry out the lifting operation due to various fault hidden dangers that are not checked in time or the process is chaotic. The lifting and traveling operations are also unstable, and shaking and pauses frequently occur, which greatly increases the unnecessary waiting time. The equipment parameters have not been scientifically designed and are difficult to adapt to the working conditions of efficient beam movement. The operation process is cumbersome and lacks rational optimization, making the beam movement process full of obstacles. The lifting time of a single beam is long, which is difficult to meet the tight schedule and heavy tasks of large-scale beam and slab lifting in bridge construction, which greatly restricts the progress of the project. In view of this, we propose a method for efficient beam movement of a mobile beam lifting machine. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, adapt to actual needs, and provide a method for efficiently moving beams with a mobile beam lifting machine, so as to solve the technical problems in the current technology that the beam moving process is full of obstacles, the single beam lifting time is long, and it is difficult to meet the tight schedule and heavy tasks of large-scale beam and slab lifting in bridge construction.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for efficiently moving beams with a mobile beam lifting machine, comprising the following steps:

[0006] S1: Assemble the beam lifting machine. Select the appropriate gantry crane and wire rope according to the specifications and weight of the beam lifting machine components;

[0007] S2: The beam lifting machine is in place, and the beam lifting machine is positioned according to the predetermined center line to ensure accurate positioning;

[0008] S3: Test lifting: the beam-making technician first tests the strength of the T-beam. After confirming that it meets the lifting requirements, the crane operator issues instructions to the beam hoist operator to raise the movable pulley, lift the T-beam 5cm and then stop for 10 minutes;

[0009] S4: Lifting. After the trial lift is checked and found to be correct, the rigger again tells the beam hoisting machine operator to raise the beam;

[0010] S5: Walking. After confirming that it is possible to walk, the beam lifting machine slowly accelerates and transports the T-beam to the beam storage pedestal along the beam lifting channel;

[0011] S6: Drop the beam and release the connection. When the beam lifting machine moves the beam to the top of the beam storage pedestal, lower the height of the beam and stop when the bottom surface of the T beam is 3 cm higher than the hard rubber plate of the beam storage pedestal;

[0012] S7: Management of beam transport roads and working environment. During the entire beam moving process, special personnel are arranged to inspect the beam transport roads every day. Once problems including soft and potholes are found, they are dealt with in a timely manner to ensure the safety of the beam transport vehicles.

[0013] Preferably, the lifting capacity of the gantry crane in step S1 must fully meet the lifting requirements of the beam lifting machine assembly to ensure a safe and smooth assembly process. During the assembly process, the equipment installation instructions must be strictly followed to accurately install the components including the upper and lower legs, main beams and side beams, large frame, power compartment and valve station, beam crane, and winch, and perform preliminary debugging.

[0014] Preferably, in step S2, the workers carry the hard rubber pads, two sets of steel wire ropes, and two sets of beam guard iron tiles required for the beam lifting to the bottom of the T-beam lifting hole to prepare for subsequent lifting operations. During the transportation process, pay attention to protecting equipment and materials to avoid collision and damage.

[0015] Preferably, in step S3, it is carefully checked whether the steel wire rope is evenly stressed, whether there is any abnormal sound, whether the guard beam iron tile is deformed, and whether there is any overload on the movable pulley. If any abnormality is found, the trial lifting is stopped immediately, and inspections and repairs are carried out until all inspection items meet safety requirements before the next step can be carried out.

[0016] Preferably, during the lifting process in step S4, the operation is kept smooth and the lifting status of the beam is closely monitored. When the beam lifting machine needs to turn during operation, the operator should slowly adjust the steering wheel. Direct steering or too fast steering is strictly prohibited to prevent the beam from shaking or shifting. At the same time, the beam lifting machine supervisor should always pay attention to the direction of travel, and promptly clear obstacles and objects that may damage the tires of the beam lifting machine to ensure the safe operation of the beam lifting machine.

[0017] Preferably, in the step S5, the beam is kept stable during the walking process to avoid excessive swing of the beam. The beam lifting machine supervisor continuously observes the operation to ensure that the beam lifting machine travels along the predetermined route. If there is any abnormal situation, timely measures are taken to adjust or brake.

[0018] Preferably, in step S6, the fixed pulley cylinder is adjusted to accurately adjust the position of the T-beam so that it is accurately positioned with the beam storage pedestal, and the beam lifting machine is slightly operated to place the T-beam stably on the top surface of the hard rubber plate of the beam storage pedestal. After confirming that the two fulcrums are in close contact, the worker removes the wire rope and moves the beam lifting machine to the designated position to prepare for the beam lifting operation of the next beam.

[0019] Preferably, in step S7, when the beam transport vehicle is traveling on the road, command personnel are provided at the front and rear, and they wear walkie-talkies to keep in touch in time, and they travel strictly according to the prescribed route and speed. At the same time, the ten no-lifting regulations for lifting and hoisting operations are strictly implemented, and beam lifting operators must be certified to work, and implement the call-and-response system during the operation to ensure safe and orderly operations. In severe weather conditions, such as heavy rain, heavy snow, heavy fog and wind speeds of level 6 or above, open-air lifting and hoisting operations must be stopped, and operations under energized high-voltage lines are strictly prohibited to ensure the safety of personnel and equipment.

[0020] Preferably, the rated lifting capacity of the beam lifting machine in step S1 is not less than 90t, the weight of the whole machine does not exceed 15t, the span is 7m, the lifting height is 7m, the number of tires is 4, the steering modes include straight, oblique and horizontal, the lifting speed is 0.56m / min, the working level of the whole machine is A3, the driving mode is diesel engine, and the control mode is remote control.

[0021] Preferably, the steel wire rope in step S1 has a specification of Φ28mm / Φ22mm, a length selected by calculation according to the beam lifting operation requirements, a breaking safety factor of not less than 10, and both ends of the steel wire rope are braided into a rope loop by threading and winding so as to be hung on the shoulder pole.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the process of lifting and moving, the present invention closely links each step. For example, after the trial lifting is checked and found to be correct, the lifting link is quickly entered. The lifting and moving operations are smooth and orderly, reducing unnecessary waiting time. Its unique equipment parameters and operation flow design make the beam moving process smooth. Compared with the traditional beam moving method, the present invention greatly shortens the time for lifting a single beam, significantly improves the overall construction efficiency, can effectively meet the construction period requirements for large-scale beam and slab lifting in bridge construction, and speeds up the progress of the project.

[0024] 2. The performance parameters of the beam lifting machine of the present invention have been carefully designed, such as the rated lifting capacity, lifting speed, etc., which meet the safety standards, and its structure is stable. In the operation process, the trial lifting link strictly checks the key parts such as the wire rope, beam guard iron tiles and movable pulleys to eliminate safety hazards in time. During lifting and walking, there are clear provisions for the responsibilities of operators and supervisors to ensure the stability of the beam and the safe operation of the equipment. Measures such as beam transportation road management and restrictions on operations in severe weather further reduce the probability of accidents. Compared with traditional beam moving methods, the present invention effectively reduces the safety risks caused by equipment failure, improper operation and other factors, and ensures the safety of personnel and the smooth progress of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0026] Embodiment 1, as Figure 1 As shown, the present invention relates to a method for efficiently moving beams using a mobile beam lifting machine, comprising the following steps:

[0027] S1: Assemble the beam lifting machine. Select the appropriate gantry crane and wire rope according to the specifications and weight of the beam lifting machine components.

[0028] The lifting capacity of the gantry crane in step S1 must fully meet the lifting requirements of the beam hoist assembly to ensure a safe and smooth assembly process. During the assembly process, the equipment installation instructions must be strictly followed to accurately install the components including the upper and lower legs, main beams and side beams, large frame, power compartment and valve station, beam hoist crane, and winch, and perform preliminary debugging.

[0029] The rated lifting capacity of the beam lifting machine in step S1 is not less than 90t, the weight of the whole machine is not more than 15t, the span is 7m, the lifting height is 7m, the number of tires is 4, the steering modes include straight, oblique and horizontal, the lifting speed is 0.56m / min, the working level of the whole machine is A3, the driving mode is diesel engine, and the control mode is remote control.

[0030] The steel wire rope in step S1 has a specification of Φ28mm / Φ22mm, a length selected by calculation according to the beam lifting operation requirements, a breaking safety factor of not less than 10, and both ends of the steel wire rope are braided into a rope loop by threading and winding so as to be hung on the shoulder pole.

[0031] S2: The beam lifting machine is in place and positioned according to the predetermined center line to ensure accurate positioning.

[0032] In step S2, workers carry the hard rubber pads, two sets of steel wire ropes, and two sets of beam protection iron tiles required for lifting the beam to the bottom of the T-beam lifting hole to prepare for subsequent lifting operations. During the transportation process, pay attention to protecting equipment and materials to avoid collision and damage.

[0033] S3: Test lifting. The beam-making technician first tests the strength of the T-beam. After confirming that it meets the lifting requirements, the crane operator issues instructions to the beam hoist operator to raise the movable pulley, lift the T-beam 5cm and then stop for 10 minutes.

[0034] In step S3, carefully check whether the wire rope is evenly stressed, whether there is any abnormal sound, whether the guard beam iron tile is deformed, and whether there is any overload on the movable pulley. If any abnormal situation is found, stop the trial lifting immediately, and conduct investigation and repair until all inspection items meet the safety requirements before proceeding to the next step.

[0035] S4: Lifting. After the trial lift is checked and found to be correct, the rigger again tells the beam hoisting machine operator to raise the beam.

[0036] During the lifting process in step S4, the operation should be kept stable and the lifting status of the beam should be closely monitored. When the beam lifting machine needs to turn during operation, the operator should slowly adjust the steering wheel. It is strictly forbidden to turn directly or turn too quickly to prevent the beam from shaking or shifting. At the same time, the beam lifting machine supervisor should always pay attention to the direction of travel, and promptly clear obstacles and objects that may damage the tires of the beam lifting machine to ensure the safe operation of the beam lifting machine.

[0037] S5: Walking. After confirming that it is possible to walk, the beam lifting machine slowly accelerates and transports the T-beam to the beam storage pedestal along the beam lifting channel.

[0038] In the step S5, the beam is kept stable during the movement to avoid excessive swing of the beam. The beam lifting machine supervisor continuously observes the operation to ensure that the beam lifting machine travels along the predetermined route. If there is any abnormality, timely measures are taken to adjust or brake.

[0039] S6: Drop the beam and release the connection. When the beam lifting machine moves the beam to the top of the beam storage pedestal, lower the height of the beam and stop when the bottom surface of the T-beam is 3 cm higher than the hard rubber plate of the beam storage pedestal.

[0040] In step S6, the fixed pulley cylinder is adjusted to accurately adjust the position of the T-beam so that it is accurately positioned with the beam storage pedestal. The beam lifting machine is slightly operated to place the T-beam stably on the top surface of the hard rubber plate of the beam storage pedestal. After confirming that the two fulcrums are closely attached, the worker removes the wire rope and moves the beam lifting machine to the designated position to prepare for the beam lifting operation of the next beam.

[0041] S7: Management of beam transport roads and working environment. During the entire beam moving process, special personnel are arranged to inspect the beam transport roads every day. Once problems including soft and potholes are found, they are dealt with in a timely manner to ensure the safety of the beam transport vehicles.

[0042] When the beam transport vehicle in step S7 is on the road, command personnel are deployed at the front and rear, and they wear walkie-talkies to keep in touch in time, and they drive strictly according to the prescribed route and speed. At the same time, the ten no-lifting regulations for lifting and hoisting operations are strictly implemented. Beam lifting operators must be certified and implement the call-and-response system during the operation to ensure safe and orderly operations. In severe weather conditions, such as heavy rain, heavy snow, heavy fog and wind speeds of level 6 or above, open-air lifting and hoisting operations must be stopped, and operations under energized high-voltage lines are strictly prohibited to ensure the safety of personnel and equipment.

[0043] Quality control standards must be strictly enforced throughout the entire beam shifting process. For wire ropes, in addition to meeting the specifications and breaking safety factor requirements, their wear should be checked regularly. Once the wear exceeds the specified limit, they must be replaced in a timely manner. If the beam guard iron tiles are deformed or damaged, they should also be repaired or replaced immediately to ensure their protective effect on the T-beam. In terms of T-beam storage, the settlement of the beam storage pedestal needs to be measured regularly and monitored using a high-precision level to ensure that the settlement meets the specifications. If abnormal settlement is found, the cause should be analyzed and corresponding reinforcement measures should be taken. At the same time, before each lifting and lowering of the beam, the appearance of the T-beam must be carefully inspected to check for defects such as cracks and peeling. If there are problems, they should be evaluated and handled according to the degree of defects to ensure that the quality of the T-beam meets the requirements of bridge construction.

[0044] The following environmental protection measures need to be taken during construction:

[0045] Soil, water and ecological environment protection: Protective fences shall be set up around the construction site to prevent accidental damage to the surrounding vegetation during the construction process. For land temporarily occupied for construction, vegetation restoration work shall be carried out in a timely manner after the construction is completed, and appropriate grass and tree species shall be selected for planting in accordance with the requirements of the local ecological environment. At the construction site and living area, the location of sanitary facilities shall be reasonably planned to ensure that they are easy to clean and maintain, and sanitary facilities shall be disinfected regularly to prevent the breeding and spread of germs. Hazardous substances generated during the construction process, such as waste oil, chemical reagents, etc., shall be specially collected and stored in sealed containers, and transported to designated hazardous waste treatment centers for proper treatment in accordance with environmental protection regulations. It is strictly prohibited to dump or bury them at will.

[0046] Water environment protection: In the construction area near the living water source, dig trenches of sufficient depth and width or build solid dams to ensure that construction wastewater will not penetrate or flow into the living water source. For the wastewater generated by cleaning machinery, repairing machinery and construction equipment, set up a special wastewater treatment pool. The wastewater needs to go through sedimentation, filtration and other treatment processes to remove oil, silt and other pollutants before it can be discharged or recycled. When selecting construction technology, water-saving and environmentally friendly processes are preferred to reduce water consumption and wastewater generation during the construction process. For the waste slurry generated by construction, use special sealed transport vehicles to transport it to the designated dumping site, and set up anti-seepage and anti-leakage seepage pits at the dumping site to further treat the waste slurry to prevent it from polluting rivers and water sources.

[0047] Atmospheric environmental protection and dust control: In addition to equipping special sprinkler trucks, dust monitoring equipment should be installed at key locations on construction sites and transportation roads to monitor the dust concentration in the air in real time. When the dust concentration exceeds the specified limit, the sprinkler truck will be automatically started to spray water to reduce dust or other effective dust reduction measures will be taken, such as setting up wind and dust suppression nets at the construction site. For the storage of volatile products such as gasoline, a dedicated warehouse with good ventilation and away from fire sources and crowded areas should be selected. The warehouse should have good sealing performance and fire and explosion prevention facilities, and its opening time and frequency should be strictly controlled to reduce the pollution of volatile gases to the atmospheric environment.

[0048] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A method for efficiently moving beams with a mobile beam lifting machine, characterized in that: The following steps are involved: S1: Assemble the beam lifting machine. Select the appropriate gantry crane and wire rope according to the specifications and weight of the beam lifting machine components; S2: The beam lifting machine is in place, and the beam lifting machine is positioned according to the predetermined center line to ensure accurate positioning; S3: Test lifting: the beam-making technician first tests the strength of the T-beam. After confirming that it meets the lifting requirements, the crane operator issues instructions to the beam hoist operator to raise the movable pulley, lift the T-beam 5cm and then stop for 10 minutes; S4: Lifting. After the trial lift is checked and found to be correct, the rigger again tells the beam hoisting machine operator to raise the beam; S5: Walking. After confirming that it is possible to walk, the beam lifting machine slowly accelerates and transports the T-beam to the beam storage pedestal along the beam lifting channel; S6: Drop the beam and release the connection. When the beam lifting machine moves the beam to the top of the beam storage pedestal, lower the height of the beam and stop when the bottom surface of the T beam is 3 cm higher than the hard rubber plate of the beam storage pedestal; S7: Management of beam transport roads and working environment. During the entire beam moving process, special personnel are arranged to inspect the beam transport roads every day. Once problems including soft and potholes are found, they are dealt with in a timely manner to ensure the safety of the beam transport vehicles.

2. The method for efficiently moving beams with a mobile beam lifting machine according to claim 1 is characterized in that: The lifting capacity of the gantry crane in step S1 must fully meet the lifting requirements of the beam hoist assembly to ensure a safe and smooth assembly process. During the assembly process, the equipment installation instructions must be strictly followed to accurately install the components including the upper and lower legs, main beams and side beams, large frame, power compartment and valve station, beam hoist crane, and winch, and perform preliminary debugging.

3. The method for efficiently moving beams with a mobile beam lifting machine according to claim 2, characterized in that: In step S2, workers carry the hard rubber pads, two sets of steel wire ropes, and two sets of beam protection iron tiles required for lifting the beam to the bottom of the T-beam lifting hole to prepare for subsequent lifting operations. During the transportation process, pay attention to protecting equipment and materials to avoid collision and damage.

4. The method for efficiently moving beams with a mobile beam lifting machine according to claim 3 is characterized in that: In step S3, carefully check whether the wire rope is evenly stressed, whether there is any abnormal sound, whether the guard beam iron tile is deformed, and whether there is any overload on the movable pulley. If any abnormal situation is found, stop the trial lifting immediately, and conduct investigation and repair until all inspection items meet the safety requirements before proceeding to the next step.

5. The method for efficiently moving beams with a mobile beam lifting machine according to claim 4 is characterized in that: During the lifting process in step S4, the operation should be kept stable and the lifting status of the beam should be closely monitored. When the beam lifting machine needs to turn during operation, the operator should slowly adjust the steering wheel. It is strictly forbidden to turn directly or turn too quickly to prevent the beam from shaking or shifting. At the same time, the beam lifting machine supervisor should always pay attention to the direction of travel, and promptly clear obstacles and objects that may damage the tires of the beam lifting machine to ensure the safe operation of the beam lifting machine.

6. The method for efficiently moving beams with a mobile beam lifting machine according to claim 5, characterized in that: In the step S5, the beam is kept stable during the movement to avoid excessive swing of the beam. The beam lifting machine supervisor continuously observes the operation to ensure that the beam lifting machine travels along the predetermined route. If there is any abnormality, timely measures are taken to adjust or brake.

7. The method for efficiently moving beams with a mobile beam lifting machine according to claim 6, characterized in that: In step S6, the fixed pulley cylinder is adjusted to accurately adjust the position of the T-beam so that it is accurately positioned with the beam storage pedestal. The beam lifting machine is slightly operated to place the T-beam stably on the top surface of the hard rubber plate of the beam storage pedestal. After confirming that the two fulcrums are closely attached, the worker removes the wire rope and moves the beam lifting machine to the designated position to prepare for the beam lifting operation of the next beam.

8. The method for efficiently moving beams with a mobile beam lifting machine according to claim 7, characterized in that: When the beam transport vehicle in step S7 is on the road, command personnel are deployed at the front and rear, and they wear walkie-talkies to keep in touch in time, and they drive strictly according to the prescribed route and speed. At the same time, the ten no-lifting regulations for lifting and hoisting operations are strictly implemented. Beam lifting operators must be certified and implement the call-and-response system during the operation to ensure safe and orderly operations. In severe weather conditions, such as heavy rain, heavy snow, heavy fog and wind speeds of level 6 or above, open-air lifting and hoisting operations must be stopped, and operations under energized high-voltage lines are strictly prohibited to ensure the safety of personnel and equipment.

9. The method for efficiently moving beams with a mobile beam lifting machine according to claim 8, characterized in that: The rated lifting capacity of the beam lifting machine in step S1 is not less than 90t, the weight of the whole machine is not more than 15t, the span is 7m, the lifting height is 7m, the number of tires is 4, the steering modes include straight, oblique and horizontal, the lifting speed is 0.56m / min, the working level of the whole machine is A3, the driving mode is diesel engine, and the control mode is remote control.

10. The method for efficiently moving beams with a mobile beam lifting machine according to claim 9, characterized in that: The steel wire rope in step S1 has a specification of Φ28mm / Φ22mm, a length selected by calculation according to the beam lifting operation requirements, a breaking safety factor of not less than 10, and both ends of the steel wire rope are braided into a rope loop by threading and winding so as to be hung on the shoulder pole.

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