Steel pipe high-ductility combination column and construction method thereof

Abstract

The invention relates to a steel pipe high-ductility combination column and a construction method thereof. Comprising an outer steel pipe, an inner corrugated pipe and a plurality of connecting plates, a plurality of first hanging strips are evenly fixed to the inner circumferential face of the outer steel pipe, the cross section of each first hanging strip is in a C shape, and the inner corrugated pipe and the connecting plates are made of fiber reinforced composite materials; a corrugated groove in the inner corrugated pipe is spiral, second hanging strips corresponding to the first hanging strips one to one are integrally fixed to the peripheral face of the corrugated groove, a plurality of through holes penetrating through the inside and the outside are evenly distributed in the corrugated pipe, and the connecting plate comprises two layers of corrugated plates and two inserting plates symmetrically connected to the two ends of the two layers of corrugated plates. The connecting plates are inserted between the first hanging strips and the second hanging strips which correspond to each other through the inserting plates, the fiber concrete is poured into the outer steel pipes, cavities in the outer steel pipes are filled with the fiber concrete through the positions between any upper and lower adjacent corrugated plates and through the through holes, multi-direction high ductility is achieved, vibration energy can be effectively absorbed, structural damage is avoided, and the service life of the connecting plates is prolonged. And all parts are tightly connected and are not easy to separate.

Description

Technical field [0001] The present invention relates to a steel pipe high ductility combination column and a method of construction thereof. Background [0002] Composite columns generally refer to structural components composed of two or more materials such as steel pipes and concrete. Common for steel pipe concrete columns, steel pipe concrete column core concrete can withstand longitudinal pressure, and by the lateral constraint of steel pipe, in a three-way compression state, so that the core concrete has a higher axial compressive strength and compression deformation ability, plasticity and toughness properties are greatly improved. At the same time, the steel pipe enhances the stability of the steel pipe wall with the help of the support effect of the filled concrete, and improves the overall stability. [0003] However, with the emergence of high-rise, super-high-rise structures and long-span arch bridges, when the traditional steel pipe composite column is used, due to th...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a steel pipe high-ductility composite column to solve the technical problem of insufficient ductility of the existing composite column when bearing multi-directional loads; the purpose of the present invention is also to provide a steel pipe high-ductility composite column construction method

Images