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Method for picking beams of beam lifting and carrying machine for railway bridging

A technology of lifting and transporting beams, taking beams and transporting beams, is applied in the direction of erecting/assembling bridges, bridges, bridge construction, etc., and can solve the problems of high beam installation costs, high platform foundation requirements, and low construction efficiency. , to achieve huge economic and social benefits, improve construction efficiency, and save time.

Active Publication Date: 2015-03-11
中铁十七局集团第三工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the transfer process, the requirements for the platform foundation are high, and the construction volume is large. Using this method to install the beams on the lifting beam machine is costly, cumbersome, and low in construction efficiency. The time for beam removal is 1.5 hours

Method used

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  • Method for picking beams of beam lifting and carrying machine for railway bridging
  • Method for picking beams of beam lifting and carrying machine for railway bridging

Examples

Experimental program
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Embodiment Construction

[0019] According to the accompanying drawings, the specific process of hoisting the box girder on the railway bridge deck:

[0020] 2.1 The box girder to be erected is under the two 450-ton beam lifting machines, and the basin-type rubber bearing is installed on the lifting beam platform. After passing the inspection, the box girder to be erected is lifted to the bridge deck platform by two 450-ton beam lifting machines.

[0021] 2.2 The front running wheels of the lifting beam machine run to 30 cm from the end of the box girder to be erected and stop.

[0022] 2.3 When the lifting height of the beam lifting machine is limited

[0023] 2.3.1 The two girder lifting machines lift the girder lifting machine synchronously until the running wheel distance of the girder lifting machine is 50 cm from the bridge deck (the lowest point of the running wheel is higher than the top surface of the pre-embedded steel bars on the bridge deck) and stops.

[0024] 2.3.2 The crane girders of t...

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Abstract

The invention discloses a method for picking beams of a beam lifting and carrying machine for railway bridging and belongs to the technical field of railway construction. Two fixed lifting lugs are respectively mounted at the front, at the rear, on the left and on the right of a main beam of the beam lifting and carrying machine used for two beam elevators of 450 tons to integrally hoisting the beam lifting and carrying machine. By the aid of the method of hoisting the beam lifting and carrying machine-moving longitudinally-being placed to a beam mounting position, hoisting and picking of a top beam box on a railway deck are achieved. A conventional beam-shifting platform is replaced by the beam elevators, a novel beam-picking method is developed, and accordingly construction cost is greatly lowered, and construction efficiency is improved simultaneously.

Description

technical field [0001] The invention relates to the technical field of railway construction. Background technique [0002] With the rapid and steady development of my country's infrastructure, China's railways have entered a stage of leapfrog development. Since the railway construction belongs to infrastructure construction, the state has invested heavily, and it also faces many problems during the construction process, such as high construction costs. In terms of railway construction, one of the key issues that needs to be solved first is how to meet the growing demand with lower construction costs, higher construction efficiency, and high-quality completion of construction goals. [0003] At present, in the process of railway construction, in order not to occupy land and ensure the safety of railway operation, the proportion of elevated parts on railways is increasing. In elevated lines, large concrete box girders are used as weight supports. Important components on elev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/06
Inventor 乐锋李慧敏李全曹会芹袁俊青
Owner 中铁十七局集团第三工程有限公司
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