Multi-chamber type steel pipe and concrete combined T-shaped column

A concrete-filled steel tube and concrete technology, which is applied to columns, piers, pillars, etc., can solve the problems of large welding volume, bending of steel plates, and high processing costs, so as to reduce the influence of initial deformation defects, improve bearing capacity, and ensure construction. quality effect

Inactive Publication Date: 2013-08-14
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this cross-sectional form can overcome the adverse effects of internal corners, it still has the disadvantages of bending the steel plate, large amount of welding, and high processing costs.

Method used

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  • Multi-chamber type steel pipe and concrete combined T-shaped column
  • Multi-chamber type steel pipe and concrete combined T-shaped column
  • Multi-chamber type steel pipe and concrete combined T-shaped column

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Embodiment Construction

[0029] The multi-chamber concrete-filled steel tube composite T-shaped column of the present invention is composed of rectangular and / or square steel tube profiles 1 and concrete 2 poured in the steel tube profiles, and the cross-section of the T-shaped column includes more than three rectangular and / or square steel tubes For sectioning of profiles, first, cut rectangular and / or square steel tube profiles according to the design size, and then weld more than three rectangular and / or square steel tube profiles into a T-shaped section according to the design size of the section. According to "Technical Specifications for Shaped Steel Structures" (GB50018‐2002), trumpet-shaped welds are used, arranged at the rounded corners of rectangular and / or square steel pipes, and the quality of the welds is guaranteed. Finally, concrete is poured in rectangular and / or square steel pipes. Concrete can be poured by artificial layer-by-layer vibrating method, conduit pouring method, pumping jac...

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Abstract

The invention discloses a multi-chamber type steel pipe and concrete combined T-shaped column which consists of square and rectangular steel pipe profiles and concrete poured into the steel pipe profiles, wherein three or more rectangular steel pipe profiles are welded together to form a T-shaped sectional column; the whole section of the column is divided into multiple chambers through the three or more steel pipe profiles; and then the concrete is filled into the chambers. The steel pipes are the square and rectangular steel pipe profiles. Due to the multiple chambers, the mutual action of the steel pipes and the concrete is enhanced, the proportional limit of the height to thickness ratio of a flange to a web plate increases, and an application range of a load is enlarged; a 90-degree internal corner is eliminated, so that the bearing capacity of a structural piece is improved, and the seismic performance of the T-shaped column is improved; the welding work is less, and the T-shaped column is easy to manufacture and high in economical benefit; and the initial shortcomings of cold bending and welding of common steel plates are overcome, and therefore, the T-shaped column is more ideal in stress.

Description

technical field [0001] The invention belongs to the field of construction engineering, in particular to a multi-chamber steel tube concrete composite T-shaped column. Background technique [0002] With the increase of my country's steel output and the promotion of the use of steel structures, steel structure housing has developed rapidly in our country. Most of these steel structure houses adopt frame-support system or frame-concrete shear wall (core tube) system, and the columns can be steel columns, steel-reinforced concrete columns and steel-filled concrete columns. Among them, the latter two columns are used as composite columns, which can save steel and bring good economic benefits compared with steel columns. However, the construction process of steel reinforced concrete columns is complicated, so the current steel structure residential system mostly uses steel pipe concrete columns. Compared with traditional reinforced concrete columns, the cross-sectional size of C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34
Inventor 屠永清李攀申彦飞
Owner BEIHANG UNIV
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