Large-span steel-concrete composite bridge large-section steel truss girder erecting system and construction method
A technology of steel truss girders and composite bridges, which is applied in the erection system and construction field of large-segment steel truss girders of long-span steel-concrete composite bridges. , Ensure the effect of installation linearity and simple structure
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[0044] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
[0045] Such as figure 1 and image 3 As shown, the auxiliary hole traction system 4 is set on the work platform 13 as the fixed control frame of the main cable 5, and its auxiliary hole is used as a traction frame for the translation of the steel truss 18, which is used to release the traction force when the steel truss 18 is connected, and the auxiliary steel trusses 18 are connected to each other. close together; and the pulley block 8 is set on the side near ...
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