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Moving tower crane bridge surface running construction method

A technology of mobile tower cranes and construction methods, applied to bridges, bridge construction, erection/assembly of bridges, etc., can solve the problem of uneconomical secondary transfer, save material transfer time and construction material layout time, increase mobility, increase The effect of a large safety factor

Active Publication Date: 2010-10-13
GUIZHOU BRIDGE CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing situation shows that it is not economical to install multiple tower cranes or to install one tower crane and then carry out secondary transfer of construction materials

Method used

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  • Moving tower crane bridge surface running construction method
  • Moving tower crane bridge surface running construction method
  • Moving tower crane bridge surface running construction method

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Experimental program
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Embodiment Construction

[0033] The embodiment of wooden invention: adopt the mobile tower crane of existing market, mobile tower crane comprises tower body 1 and walking platform 2. Transport the mobile tower crane to the starting point of bridge construction. The reinforced concrete girder bridge is built according to the length of one span. 3, start to install the walking track 4, so as to walk to the next span. The length of the walking track 4 is 50m (standard span box girder length). Pull, set the backing plate 5 on the bridge deck 3, set the sleepers 6 on the backing plate 5, and fix the running track 4 on the sleepers 6 through rivets, and the backing plate 5 is made of steel plate, which is used to ensure that the force on any position on the total length of the walking track 4 is uniform Reliable, avoiding the influence of superelevation on bridge deck 3. Walking track 4 needs 2 sections at least, and one section is used for mobile tower crane walking, and another section is transported to ...

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Abstract

The invention discloses a bridge deck operation construction method of a mobile tower crane and a device thereof; when in the bridge construction, the mobile tower crane moves on finished bridge deck, then moves to the back of the bridge construction place, and is fixed on the bridge deck, so as to lift construction materials; the invention has the advantages that: the construction period can be shortened by 20 to 30 percent, thus greatly improving work efficiency, the labor demand is reduced by 40 to 50 percent, and related machinery and equipment investment is reduced by about 40 percent; the invention can not only improve work efficiency, but also enhance safety factor of construction, therefore, greatly increasing reliability of whole construction scheme. The invention has strong adaptability and can be used for almost constructions of concrete girder bridges and continuous construction of rigid frames.

Description

technical field [0001] The invention relates to a bridge deck running construction method and device for running a mobile tower crane on a bridge deck during bridge construction, and belongs to the technical field of highway and bridge construction. Background technique [0002] Reinforced concrete girder bridges have a history of nearly a hundred years. After long-term practice and theoretical research, people's understanding of reinforced concrete structures and prestressed concrete structures has gradually matured, and the structural system has been relatively complete. Therefore, the material cost of the bridge accounts for the entire project. The proportion of construction cost has decreased, while the proportion of construction cost and labor wages has increased. Therefore, construction cost has a decisive impact on project cost. For multi-span continuous girder bridges and continuous rigid frames with a bridge length of more than 200m, for the transportation of constr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 阮有力黄盛刘智樊永波赵伟
Owner GUIZHOU BRIDGE CONSTR GROUP
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