A simultaneous cable-girder construction method for a cable-stayed bridge with sparse cables
A technology of simultaneous construction and stay cables, applied in cable-stayed bridges, bridges, bridge materials, etc., can solve the problems of large girder stress variation, multi-girder construction period, steel strand damage, etc. Improve construction efficiency and save construction period
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[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0032] The invention provides a cable-girder synchronous construction method for a cable-stayed bridge with sparse cables. The cable-stayed bridge with sparse cables includes a main tower 1, a main beam and a plurality of cable-stayed cables 4, and the main beam includes a plurality of alternately arranged cable joints. Section 2 and a plurality of cable-free segments 8, the cable segment 2 and the cable-free segment 8 are concrete box girders, and a stay cable 4 is arranged on the cable segment 2. After the construction of the main tower 1 is completed, Carry out the construction of cable-stayed cable 4 and main girder, the cable-girder synchronous construction method of this cable-stayed cable-stayed bridge comprises the following steps:
[0033] Step 1: See figure 1 , 2 As shown in , 3, the vertical formwork of the first cable segment 2 adjacent to the m...
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