Web plate type bridge fabrication machine for constructing bridge under strong wind and high altitude conditions and construction process
A technology for bridge construction and bridge building machines, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., and can solve problems such as high safety risks and large interference
Active Publication Date: 2013-06-12
CHINA RAILWAY 20 BUREAU GRP +1
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Problems solved by technology
However, because the bridge is located in a windy area, and most of the piers are nearly 50 meters high, under the high-altitude windy area and many other unfavorable factors, the assembly work and wet joint construction of large-tonnage and large-section box girders pose safety risks. Extremely high, the construction is greatly disturbed by external objective factors
Method used
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[0057] like figure 1A web-type bridge-building machine for bridge construction under conditions of strong wind and high altitude is shown, including the main structure of the bridge-building machine, and a plurality of segmental beams installed on the upper part of the main structure of the bridge-building machine and assembled to form the bridge to be constructed. The crane system for hoisting and transfer and the forward moving system that drags the main structure of the bridge building machine to move forward horizontally, and are respectively installed under the front part, under the middle part and below the main structure of the bridge building machine from front to back. For the front outrigger 6, the middle outrigger 7 and the rear outrigger 8 under the rear part, the forward moving system is arranged on the main structure of the bridge building machine. The main structure of the bridge-building machine includes two main body assembly structures arranged symmetrically ...
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The invention discloses a web plate type bridge fabrication machine for constructing a bridge under strong wind and high altitude conditions and a construction process. The bridge fabrication machine comprises a bridge fabrication machine main body structure, a crown block system and a forward movement system, wherein the bridge fabrication machine main body structure comprises a left main body splicing structure and a right main body splicing structure which are distributed symmetrically; each main body splicing structure comprises a main beam section, a guide beam section and a tail beam feeding cantilever section; and low trimming beams which are distributed horizontally and are formed by assembling a left trimming beam with a right trimming beam are arranged under the main beam sections in the two main body splicing structures. The construction process comprises the following steps of: 1, splicing a first hole beam in a single hole beam or a multi-hole beam; 2, constructing the next hole beam; and 3, repeatedly constructing until all construction processes of constructed beams are finished. The bridge fabrication machine has a reasonable structural design, high construction efficiency, high bearing capacity and a good using effect, is convenient to process, manufacture and splice, is easy and convenient to operate, and can quickly and safely finish a section splicing construction process of a large-cross-section bridge under the strong wind and high altitude conditions with high quality.
Description
technical field [0001] The invention belongs to the technical field of bridge-building machine assembling and construction, and in particular relates to a web-type bridge-building machine and construction technology for bridge construction under strong wind and high altitude conditions. Background technique [0002] The maximum pier height of the LXTJ1 standard DK1123+907 Hongliuhe Extra Large Bridge (L=1651.19m) for the second double line of the Lanzhou-Xinjiang Railway (Xinjiang section) is 46.5m, and the superstructure is a 33-hole 48m prestressed concrete double-line simply supported box girder Construction is carried out using segmental assembly technology. The 48m prestressed concrete double-line simply supported box girder is composed of 11 box girder segments assembled continuously. In actual construction, the weight of the heaviest section among the 11 box girder sections used is 150t, and the weight of the whole hole box girder is 1800t. The height of the box gird...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01D21/06
Inventor 苗文怀邵怀全雷耀军王俊辉姚长文仲维玲邓有辉田育虎邱成林王炳乾王群英
Owner CHINA RAILWAY 20 BUREAU GRP