Butt-joint mode of cold-bending multi-cavity steel tube concrete special-shaped column

A technology of concrete filled steel tubes and special-shaped columns, applied in the directions of columns, piers, pillars, etc., can solve the problems of difficulty in transmitting the tensile force of vertical partitions, and achieve the effects of improving indoor viewing, expanding the scope of application, and improving economy.

Pending Publication Date: 2018-06-01
重庆市中科大业建筑科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the cold-formed multi-cavity concrete-filled steel pipe special-shaped column frame column and column butt joint method, the internal vertical partition tension is difficult to transmit, and provide a butt joint connection node for cold-formed multi-cavity steel pipe concrete special-shaped columns

Method used

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  • Butt-joint mode of cold-bending multi-cavity steel tube concrete special-shaped column
  • Butt-joint mode of cold-bending multi-cavity steel tube concrete special-shaped column
  • Butt-joint mode of cold-bending multi-cavity steel tube concrete special-shaped column

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[0046] The present invention will be further described below in conjunction with the examples, but it should not be understood that the scope of the subject of the present invention is limited to the following examples. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.

[0047] see figure 1 , a butt joint method of cold-formed multi-cavity concrete-filled steel pipe special-shaped columns, which is formed by superimposing the top column unit and the bottom column unit, and its processing technology includes the following steps:

[0048] 1) Cut out a rectangular thin-walled steel plate, and bend it into a hollow steel pipe with a rectangular cross-section by cold bending. The selected cross-section is perpendicular to the length direction of the hollow steel pipe...

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Abstract

The invention provides a butt-joint mode of a cold-bending multi-cavity steel tube concrete special-shaped column. According to a machining method thereof, a thin-wall steel plate is machined to be acore-column steel tube in cold-bending and welding manners. Additionally, the side surface of the core-column steel tube is welded with a U-shaped member in order to form a multi-cavity steel tube. Apartition board in the interior of the multi-cavity steel tube is welded with butt-joint anchor bars. Anchor effect between the butt-joint anchor bars and concrete is utilized for connecting reinforced concrete in upper and lower column bodies as a whole. The butt-joint mode helps resolve the problem that stress of a butt-joint connection node of a traditional steel tube concrete special-shaped column is weak. Meanwhile, a butt-joint connection node of the cold-bending multi-cavity steel tube concrete special-shaped column is simple in structure and clear-cut in force-transmission principle and can be prefabricated and produced within a factory. Therefore, construction is convenient and quick.

Description

technical field [0001] The invention belongs to the field of building structural components, and in particular relates to a steel-concrete composite structure frame docking method. Background technique [0002] Special-shaped columns are currently widely used in buildings such as residences, apartments, and dormitories. The special-shaped columns are flush with adjacent walls, making the interior space of the building regular, which is conducive to furniture placement and improves the efficiency of indoor space utilization. However, the currently widely used reinforced concrete special-shaped columns have stricter seismic design, and the design indicators such as the maximum service height and column axial compression ratio are far lower than ordinary rectangular reinforced concrete columns. The use of special-shaped steel tube concrete columns can significantly improve the seismic performance of the special-shaped column frame structure system, and expand the application ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/18E04C3/34E04C3/32
CPCE04B1/185E04C3/32E04C3/34
Inventor 刘界鹏
Owner 重庆市中科大业建筑科技有限公司
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