Plane rotation construction technique for steel truss girder for existing bridge spanning construction
A construction technology and technology of steel truss girders, which are applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., which can solve the problems of large traffic interference on existing lines, large construction safety risks and hidden dangers, and inability to carry out normal construction.
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[0078] Such as figure 1 A steel truss girder planar swivel construction technique for bridge construction spanning existing lines is shown, comprising the following steps:
[0079] Step 1. Construction of steel truss girder high-level assembled platform: combined figure 2 and image 3 , erecting the steel truss girder high-level assembly platform for assembling the steel truss girder 6 .
[0080] Such as figure 1 The bridge constructed by the steel truss girder plane swivel construction process shown crosses the existing line 1 and obliquely intersects with the existing line 1. The existing line 1 is a double-track railway line, and the main girders of the constructed bridge are at the front and rear ends Steel truss girders 6 respectively supported on permanent pier 1 2 and permanent pier 2 3, see figure 2 The steel truss girder 6 is assembled from a plurality of steel truss girder segments, the permanent pier 2 and the permanent pier 2 3 are reinforced concrete piers, ...
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