A flange-connected concrete-filled double-wall steel pipe prefabricated bridge pier with additional energy-dissipating steel bars
A technology of prefabricated assembly and energy-consuming steel bars, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of reducing the horizontal bearing capacity of bridge piers, large seam splicing gaps, and low manufacturing accuracy, so as to improve construction speed and avoid Buckling, the effect of improving construction quality
Active Publication Date: 2017-02-01
NINGBO UNIV
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Problems solved by technology
At the same time, prefabricated concrete piers require high manufacturing precision. Ordinary concrete prefabricated bridge piers are not easy to assemble due to low manufacturing precision, and the splicing gap on the joint surface is large, which reduces the horizontal bearing capacity of the bridge piers.
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[0028] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0029] like figure 1 As shown, a flange-connected concrete-filled double-wall steel pipe prefabricated pier with additional energy-dissipating steel bars includes cap 1, prefabricated pier and cover beam 2. The prefabricated pier includes four pier segments, and the prefabricated pier is set at The cap 1 and the cover beam 2 are arranged on the prefabricated assembled bridge pier, the cap 1, the prefabricated assembled bridge pier and the covered beam 2 are connected by flanges to form a whole, and the prefabricated assembled bridge pier is a prefabricated assembled bridge pier filled with concrete double-walled steel pipes. The assembled bridge pier includes outer steel pipe 3, inner steel pipe 4 and filled concrete 5. Four ordinary energy-dissipating steel bars 6 with ribs at the bottom are arranged between the top surface of cap 1 and the bot...
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The invention discloses flange-connecting concrete-filled double-wall steel pipe prefabricated assembly piers with additional energy-consuming steel bars. The piers comprise a bearing table, prefabricated assembly pier bodies and a cover beam. The piers are characterized in that the bearing table, the prefabricated assembly pier bodies and the cover beam are connected through flanges to form a whole, the prefabricated assembly pier bodies are concrete-filled double-wall steel pipe prefabricated assembly pier bodies, each prefabricated assembly pier body comprises an outer steel pipe, an inner steel pipe and filled concrete, and the four common energy-consuming steel bars with ribs are arranged between the top face of the bearing table and the end faces of the prefabricated assembly pier bodies as well as between the bottom face of the cover beam and the end faces of the prefabricated assembly pier bodies. The piers have the advantages that the construction quality is improved, the construction speed is increased, the site operation amount is reduced, and the impact on the environment is reduced; the energy-consuming steel bars provide additional energy-consuming abilities for the piers, and therefore the displacement requirement of the piers under horizontal load effects of earthquakes and the like can be controlled and reduced.
Description
technical field [0001] The invention relates to a design method of a concrete-filled double-wall steel pipe prefabricated assembly bridge pier, in particular to a design method of a flange-connected concrete-filled double-wall steel pipe prefabricated assembly bridge pier with additional energy-dissipating steel bars. Background technique [0002] At present, bridge structures generally adopt the construction method of pouring concrete on site. This construction method has the disadvantages of long concrete site maintenance period, large site workload, noise and waste pollution to the surrounding environment, and easy traffic congestion. In order to alleviate these problems, precast concrete construction methods are increasingly used. [0003] Prefabricated concrete bridge components are manufactured and processed in the factory. Modern construction technologies such as automatic formwork and steam curing can be used to improve construction accuracy and maintenance quality. ...
Claims
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IPC IPC(8): E01D19/02
CPCE01D19/02
Inventor布占宇吴威业史梦珊孔婷婷
OwnerNINGBO UNIV