Construction method for penetrating through full-length prestressed tendon of segmental prefabricated assembled beam
A prestressed beam, prefabricated assembly technology, applied in the erection/assembly of bridges, bridges, bridge construction, etc., can solve the problems of affecting the prestressed elongation value, low construction work efficiency, large construction resistance, etc., to reduce construction costs and improve. The effect of improving construction quality and construction efficiency
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[0032] The present invention is described in further detail below by embodiment, and embodiment is only used for illustrating the present invention, does not limit the scope of the present invention.
[0033] see Figure 1-10 A construction method for segmentally prefabricated assembled girder through-length prestressed beams shown includes the following steps:
[0034] (1) First cut a steel strand 1 that is about 3 meters longer than the designed full-length prestressed beam length (so that it is convenient to operate), the steel strand 1 is a single piece, and is used for trying on. An annulus 2 (the diameter of the annulus 2 is the same as the diameter of the steel strand bundle 3 to be worn) made of light round steel bars is fixed at the end of the steel strand 1 by electric welding;
[0035] (2) The operator holds the other end of the steel strand 1, that is, the end of the unwelded ring 2, and passes the steel strand 1 into one end of the prestressed tunnel to be penetr...
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