Sequence control system (SCS) concrete filled steel tube bridge pier with shear nails added at bottom

Abstract

The invention discloses an SCS concrete filled steel tube bridge pier with shear nails added at bottom. The SCS concrete filled steel tube bridge pier comprises an outer steel tube, an inner steel tube, a top end shear resistant structure, a bottom end shear resistant structure and a concrete structure. The inner steel tube is sleeved inside the outer steel tube, the top end shear resistant structure is distributed between the top end of the outer steel tube and the top end of the inner steel tube, the bottom end shear resistant structure is distributed between the bottom end of the outer steel tube and the bottom end of the inner steel tube, the concrete structure is molded by pouring concrete filled in a cavity between the outer steel tube and the inner tube after the top end shear resistant structure and the bottom end shear resistant structure are distributed, the inner steel tube is a round steel tube, the outer steel tube and the inner steel tube are coaxially distributed, the outer steel tube is an outer steel tube one or two, the shape of the cross section of the outer steel tube one is a circle, and the shape of the cross section of the outer steel tube two is a rectangle or regular polygon. According to the SCS concrete filled steel tube bridge pier with stiffening ribs added at the bottom, the structure is simple, the design is reasonable, the construction is convenient, the construction cost is low, the mechanical property and the usage effect are good, and problems in concrete filled steel tube bridge piers are solved.

Description

technical field [0001] The invention relates to a steel pipe concrete bridge pier, in particular to an SCS steel pipe concrete bridge pier with additional shear nails at the end. Background technique [0002] Concrete filled steel pipe refers to the structure formed after the steel pipe is filled with concrete. The two materials of steel and concrete make up for each other's weaknesses and give full play to each other's strengths, so that the steel tube concrete has a high bearing capacity and excellent mechanical properties. Nowadays, CFST structures are more and more widely used in structures such as offshore platforms and long-span, heavy-duty, and light bridges, and the CFST structures used mainly have three cross-sectional forms: circular, square, and rectangular. However, the currently used concrete-filled steel tube structures generally have structural defects that limit the development and application of concrete-filled steel tube structures to a large extent. [0...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a SCS steel pipe concrete bridge pier with additional shear studs at the end, which has simple structure, reasonable design, convenient construction, low construction cost and excellent mechanical properties in view of the above-mentioned deficiencies in the prior art , The use effect is good, and it can effectively solve the existing problems of the existing concrete-filled steel tube concrete piers, such as the self-heavy weight, the poor connection performance between the outer steel tube and the inner concrete, the outer steel tube's effect on the inner concrete hoop, and the upper and lower ends are prone to bending, etc.

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