SCS (structure cabling system) encased structure based on PBL (planetary boundary layer) stiffening ribs

Abstract

The invention discloses an SCS (structure cabling system) encased structure based on PBL (planetary boundary layer) stiffening ribs. The SCS encased structure comprises an outer steel tube, an inner steel tube, a plurality of PBL stiffening ribs arranged between the outer steel tube and the inner steel tube, and a concrete structure which is poured and molded by concrete filled inside a cavity between the outer steel tube and the inner steel tube, wherein the outer steel tube, the inner steel tube and the plurality of PBL stiffening ribs are equal in longitudinal length; the plurality of PBL stiffening ribs are arranged along the peripheral direction of the inner steel tube; the inner lateral wall of each PBL stiffening rib and the inner lateral wall of the inner steel tube are fastened and connected into a whole, and the outer lateral wall and the outer lateral wall of the outer steel tube are fastened and connected into a whole. The SCS encased structure is simple in structure, reasonable in design, convenient to construct, low in construction cost, excellent in mechanical property, and good in using effect, and the problems of large dead load of the existing encased structure, poor connection performance of the outer steel tube and the internal concrete, and small hoop effect of the outer steel tube on the internal concrete can be effectively solved.

Description

technical field [0001] The invention relates to a steel pipe concrete structure, in particular to a SCS steel pipe concrete structure based on PBL stiffeners. 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 defects such as structural self-heaviness, which largely limits the development and application of steel tube concrete structures. [0003] In add...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a SCS steel pipe concrete structure based on PBL stiffeners, which has simple structure, reasonable design, convenient construction, low construction cost, excellent mechanical properties and easy to use. The effect is good, and it can effectively solve the problems existing in the existing steel pipe concrete structure, such as the self-heaviness, the 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.

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