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Nested steel column-concrete column connecting structure

A technology of concrete columns and connecting structures, applied in the direction of columns, pier columns, pillars, etc., can solve the problems of large steel consumption and construction difficulties, and achieve the effect of clear force

Pending Publication Date: 2021-05-28
ZHEJIANG PROVINCE INST OF ARCHITECTURAL DESIGN & RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method not only consumes a large amount of steel, but also causes great difficulties in construction.

Method used

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  • Nested steel column-concrete column connecting structure
  • Nested steel column-concrete column connecting structure
  • Nested steel column-concrete column connecting structure

Examples

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the purpose and effect of the present invention will become clearer. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0026] Such as image 3 As shown, the nested steel column-concrete column connection structure of the present invention includes an upper support device 3 , a middle steel column 2 and a lower concrete column 1 . The steel column 2 includes an external steel pipe 21 and concrete poured inside the steel pipe and column longitudinal reinforcement 11; the steel pipe 21 is welded with studs 22 around the inside, and the column longitudinal reinforcement 11 runs through the lower concrete column 1 and the middle steel column 2; the lower The concrete column 1 also includes stirrups 12 surrounding the longitudin...

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Abstract

The invention discloses a nested steel column-concrete column connecting structure. The nested steel column-concrete column connecting structure comprises a steel column and a concrete column which are connected up and down, the steel column comprises an external steel pipe, concrete and longitudinal bars, and the concrete and the longitudinal bars are poured in the steel pipe; studs are fixed to the periphery of the interior of the steel pipe, and the longitudinal bars penetrate through the concrete column on the lower part and the steel column in the middle; the concrete column further comprises stirrups surrounding the longitudinal bars, and the concrete in the steel column and the concrete column are poured at the same time; and the outer diameter of the steel column is defined as D1, the diameter of the concrete column is defined as D2, and D2 is larger than or equal to D1 and smaller than (D1+200 mm). The nested steel column-concrete column connecting structure ingeniously utilizes extrusion of the concrete core column and the steel column to transmit bending moment. Meanwhile, a bearing device is arranged in the steel pipe, and the axial force is transmitted through inverted stiffening ribs and column foot plates. The nested steel column-concrete column connecting structure is novel and unique in form, simple in structure and clear in stress.

Description

technical field [0001] The invention relates to the technical field of steel structures, in particular to a nested steel column-concrete column connection structure. Background technique [0002] Steel structure buildings are widely used in industrial and civil buildings because of their advantages of light weight, high strength and fast construction. In order to form a reasonable force transmission system between the steel structure on the ground and the reinforced concrete structure in the basement, Article 3.4.2 of the "High Steel Regulations" stipulates that the steel frame column should extend to at least one floor below the calculated embedding end. Such as Figure 1~2 As shown, when the steel column extends downward, the section needs to be enlarged, and the floor beam reinforcement and steel frame will conflict. At this time, according to the requirements of the code, the extension of the steel frame column needs to be covered with 200mm of concrete, that is, the lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04C3/32E04C3/34
CPCE04B1/5837E04C3/32E04C3/34
Inventor 祝文畏杨学林王立虎朱晟熙王宽岳燕玲
Owner ZHEJIANG PROVINCE INST OF ARCHITECTURAL DESIGN & RES
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