Large span prefabricated monolithic casting structure and construction method
A construction method and large-span technology, which are applied in building construction, construction, and building materials processing, etc., can solve the problems of high prefabricated beam height, high movable platform height, large bending moment during construction, etc., and achieve a small floor span. , The effect of fast hoisting speed and shortened construction period
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[0068] see Figure 1 to Figure 16, in the embodiment of a long-span prefabricated monolithic structure provided by the present invention, it includes a floor 1, a composite beam 2 supporting the floor 1 and a column 5, and the composite beam 2 is divided into a short frame girder 21 , the longitudinal frame beam 22 and the secondary beam 23, the secondary beam 23 is connected to the main beam 21, the composite beam 2 includes a prestressed prefabricated beam and a cast-in-place part, wherein the prestressed prefabricated beam includes a beam body 3 and the prestressed steel strand 32 embedded in the beam body 3 as the main reinforcement; the two ends of the short frame main beam 21 and the long frame beam 22 are connected with the column 5; the long frame beam 22 and the secondary beam The cross-sectional shape of the prefabricated beam part of 23 is an inverted T shape, and the composite beam after pouring is an I-shaped beam connected to the floor 1. The I-shaped beam forme...
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