Large tonnage whole opening box girder transmitting and construction method

A construction method and large-tonnage technology, applied in bridge construction, erection/assembly of bridges, bridges, etc., can solve problems such as less auxiliary equipment, variable span, and short time

Active Publication Date: 2008-03-19
CHINA RAILWAY NO 2 ENG GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve many construction problems such as long auxiliary operation time, many auxiliary equipment, variable-span beam erection and inability to parallel operation in the existing transportation and erection construction, it is necessary to d

Method used

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  • Large tonnage whole opening box girder transmitting and construction method

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Embodiment 1

[0035] Erection of the Hefei-Nanjing section of the new Xi'an-Nanjing line, using 900-ton walking bridge erecting machines and 900-ton tire-type beam transporters for transportation and erection.

[0036] 1. Transportation of box girder

[0037] (1) The beam transport vehicle 2 drives to the beam loading position empty, and adjusts it in place according to the requirements.

[0038] (2) Use the MQ450 / 34m gantry crane to lift the box girder to the beam transport vehicle 2.

[0039] (3 beam truck 2 transport box girder to the rear of the bridge erecting machine.

[0040] (4) The No. 3 column 3 of the bridge erecting machine is changed from a narrow type to a wide type. The vehicle-mounted girder for transporting the girder drives into the No. 2 column 4 of the bridge erecting machine. Erecting machine.

[0041] (5) Support outriggers, the No. 1 hoisting trolley of the bridge erecting machine has 7 hoisting beams, drags the beams forward, and the No. 2 hoisting trolley has 6 h...

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Abstract

The present invention discloses a large tonnage entire hole box beam for transporting and a method for construction, and comprises the transportation of the box beam and the erecting of the box beam. The transportation construction of the box beam mainly comprises the steps of beam transportation preparation, beam loading, beam transportation etc., and the erecting of the box beam comprises the erection of the bridge vertical over hole, beam feeding and beam hoisting for vertical shift. The method effectively solves a plurality of construction problems that the auxiliary operation time of the prior transportation construction and the prior erecting construction is long, the auxiliary equipment is more, the variable cross-beam erection and the parallel operation are not available, etc., and thus the present invention proposes a scientific construction method with short auxiliary operation time, less auxiliary equipment, and capability of parallel operation; meanwhile, the method can meet the variable cross-beam erection of a front hole beam and a tail hole beam. The method has high construction efficiency, convenient shift among the bridges and strong adaptability, and the present invention is not only suitable for the construction of the outsize bridge having a plurality of consecutive holes, but also can be well adapted to the bridge group construction with middle size and small size bridges dispersed in a bridge which only has a few box beams.

Description

technical field [0001] The invention relates to the field of railway whole hole box girder transportation and erection construction, in particular to a large tonnage whole hole box girder transportation and erection method. Background technique [0002] With the rapid development of my country's high-speed railway, how to improve the speed and efficiency of railway construction has become a very important topic, and how to improve the method of railway box girder transportation and erection construction is also an important part of this topic. In the existing method of railway box girder transportation and erection construction, the construction method of the lower guide girder type bridge erection model is to erect the first and last hole girders, and the transfer between the bridges on the construction site is complicated. The construction method cannot overcome the characteristics of low efficiency; the equipment used in the construction method of the integrated machine f...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 李华月邹宏伟王强韩伟钟卫翔梁兴华
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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