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Construction method for installing precast beam slabs by adopting bridge girder erection machine

A bridge erecting machine and beam-slab technology, which is applied in the direction of erecting/assembling bridges, bridges, and bridge construction, etc., can solve the problems of low construction efficiency, difficult component installation and safe operation, etc.

Inactive Publication Date: 2017-01-11
CCCC FIRST HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some special geographical environments, such as located in areas with many typhoons and close to the sea, when building engineering wharves, due to the special location, it has a certain impact on the quality of component installation, so it is difficult to install and operate components safely, and the construction efficiency is relatively low. Low

Method used

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  • Construction method for installing precast beam slabs by adopting bridge girder erection machine
  • Construction method for installing precast beam slabs by adopting bridge girder erection machine
  • Construction method for installing precast beam slabs by adopting bridge girder erection machine

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Embodiment 1

[0034] Such as figure 1 As described, a construction method for installing prefabricated beams and slabs using a bridge erecting machine includes the following steps:

[0035] 1) Selection of bridge erecting machine: In this embodiment, according to the maximum hoisting weight of the prefabricated component is 40t, the maximum length of the prefabricated component is 11.2m, so the QJ24 / 80 type bridge erecting machine is selected to meet the construction requirements of this project;

[0036] The main structure of the QJ24 / 80 bridge erecting machine consists of the first main girder, the truss crane walking assembly, the second main girder, the crane girder crane, the main support, the auxiliary support and the hydraulic system, forming a complete structural system. The bridge erecting machine has a total length of 40 meters, a maximum lifting weight of 60 tons, and a maximum beam span of 24 meters. It has the characteristics of light structure, good rigidity, strong stability,...

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Abstract

The invention discloses a construction method for installing precast beams and slabs by adopting a bridge girder erection machine and belongs to the field of precast beam slab construction. The construction method comprises the following steps that 1, bridge girder erection machine selection is performed: the suitable bridge girder erection machine is selected according to the hoisting weight and length of precast members; 2, the bridge girder erection machine and a transfer portal crane are spliced; 3, surveying and setting out are conducted on the positions of the precast members, supports are installed or mortar is levelled; 4, precast yard members are loaded on trucks, transported by land, transferred and transported by rail transportation carts; 5, the precast members are installed; 6, beam-transporting steel rails, steel truss supports and bearing beams are laid for the bridge girder erection machine, and via holes are set. Overwater precast member installation is performed by using the bridge girder erection machine, the bridge girder erection machine is directly fixed by using a rail clamping device and is reinforced by adopting a windproof zipper on the periphery when a typhoon reaches level 8 or above, and the bridge girder erection machine is directly dismounted when the typhoon is higher than the level 8 and is then assembled after the typhoon. Assembly and dismounting are relatively convenient, the required time is shorter, and production can be resumed in time after typhoons.

Description

technical field [0001] The invention relates to a construction method for installing a prefabricated beam slab by using a bridge erecting machine, belonging to the field of prefabricated beam slab construction. Background technique [0002] In the process of large-scale building construction, prefabricated components are often required, and a large number of prefabricated components are required in some construction projects. In some special geographical environments, such as located in areas with many typhoons and close to the sea, when building engineering wharves, due to the special location, it has a certain impact on the quality of component installation, so it is difficult to install and operate components safely, and the construction efficiency is relatively low. Low. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a construction method for installing prefabricated beams and slabs b...

Claims

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Application Information

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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 倪景军马冲佟树林曾北海李志佳周野
Owner CCCC FIRST HARBOR ENG
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