SCS square concrete-filled steel tube pier column

Abstract

The invention discloses an SCS (square concrete-filled steel) tube pier column which comprises a square steel tube, a circular steel tube, four stiffening rib plate groups and a concrete structure, wherein the circular steel tube is mounted in the square steel tube in a sleeving manner; the four stiffening rib plate groups are arranged on four inner side walls of the square steel tube respectively; the concrete structure is formed by pouring concrete filled in a cavity between the square steel tube and the circular steel tube; each stiffening rib plate group comprises a plurality of longitudinal stiffening ribs that are arranged in parallel; the longitudinal stiffening ribs are perpendicular to the inner side walls of the square steel tube where the longitudinal stiffening ribs are located respectively; all the longitudinal stiffening ribs in the four stiffening rib plate groups have identical structures and sizes; the square steel tube and the circular steel tube are arranged coaxially; and the transverse width of each longitudinal stiffening rib is less than a distance between the square steel tube and the circular steel tube where the longitudinal stiffening rib is arranged. The pier column is simple in structure, reasonable in design, convenient to construct, lower in construction cost, good in mechanical property and good in use effect, and can effectively solve the problems existing in the existing square concrete-filled steel tube structure.

Description

technical field [0001] The invention relates to a support pier, in particular to an SCS square steel tube concrete pier. Background technique [0002] Concrete filled steel tube refers to the structure formed after filling concrete in the steel tube. The two materials, steel and concrete, complement each other's weaknesses and give full play to each other's strengths, so that CFST has a high bearing capacity and excellent mechanical properties. Nowadays, CFST structures are more and more widely used in offshore platforms and large-span, heavy-duty, light-duty bridges and other structures, and the CFST structures used mainly include circular, square and rectangular cross-section forms. However, the currently used CFST structures generally have major structural defects, which limit the development and application of CFST structures to a large extent. [0003] Among them, the CFST structure has the following advantages: first, the form of the CFST beam-column joint is simple ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an SCS square concrete filled steel pipe pier with simple structure, reasonable design, convenient construction, low construction cost, excellent mechanical properties and good use effect in view of the above-mentioned deficiencies in the prior art. It can effectively solve the problems existing in the existing square steel pipe concrete structure, such as heavy weight, inconvenient construction, poor connection performance between the outer steel pipe and the inner concrete, and the small hoop effect of the outer steel pipe on the inner concrete.

Images