Steel box girder bridge and manufacturing method of steel box girder bridge
A manufacturing method and technology of steel box girders, applied to bridges, bridge construction, bridge parts, etc., can solve the problems of inconvenient arching of bridge decks and the inability to reduce the amount of steel used, and achieve convenient construction, reduced vibration, and economical efficiency Good results
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Embodiment 1
[0032] Figure 1-3 A steel box girder is shown, which includes splicing plates 1 at the bottom of the beam, fixed on both ends of the splicing plate 1 at the bottom of the beam, inclined web splicing plates, splicing plates at the bottom of the beam 1 and two beams The central partition 3 between the web splicing plates 2 is fixed on the beam bottom splicing plate 1, the two beam web splicing plates 2 and the beam top splicing plate 4 on the central partition 3, and the beam web splicing plate 2 is provided with a There are multiple L-shaped stiffeners 5 distributed longitudinally, multiple U-shaped stiffeners 6 distributed along the longitudinal direction on the splicing plate 1 at the bottom of the beam, and the splicing plate 2 at the web extends upward beyond the splicing plate 4 at the top of the beam, and then fixed The bottom of the shear connector 7, the side of the shear connector 7 located inside the beam section is supported by the inner wall side plate 9, the inner...
Embodiment 2
[0047] Figure 4 A steel box girder bridge is shown, including the main girder 16 spliced longitudinally by the above-mentioned steel box girders; the girder body 17 spliced horizontally by a plurality of girders 16; The sidewalk slab 20 on the sidewalk cantilever beam 19; the bridge deck 21 between the sidewalk slabs 20; the bridge pier 22 under the beam body 17, the support pad stone 22 on the pier 22; the support pad stone 22 and the main girder The support 23 between 16; the end diaphragm 24 between the adjacent girders 16;
[0048] There is a space reserved between the beam and the slab of the steel box girder bridge, which is convenient for the arching of the bridge deck when the formwork is supported. The vibration on the bridge is transmitted to the beam, reducing the vibration cracking of the bridge deck 21, and the support is convenient to install the support on the support pad stone 22, and the support is convenient to install the steel box girder.
[0049] In...
Embodiment 3
[0053] The present invention also relates to the manufacturing method of the above-mentioned steel box girder bridge. The above-mentioned steel box girder is placed on the support 23 of the pier 22 and spliced into a plurality of main bridge sections along the transverse direction, and continues to be longitudinally mounted on the main bridge sections on the multiple pier 22. Splicing the steel box girder until the bridge is closed, after the bridge is closed, formwork is poured on the splicing plate 4 on the top of the beam to pour the sidewalk cantilever 19, the sidewalk slab 20, and the bridge deck 21 between the sidewalk slabs 20.
[0054] First, multiple main bridge sections are spliced horizontally on multiple piers 22, which is beneficial to the overall formation, and then extended longitudinally to the bridge closure. The main bridge section has a larger installation surface, which is convenient for docking, and can also have a wider working surface It is convenient...
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