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Profiled steel and steel pipe concrete profiled pile and method for making same

A technology of steel pipe concrete and special-shaped columns, which is applied in the direction of columns, pier columns, pillars, etc., can solve the problems of changing the seismic performance of special-shaped columns, low bearing capacity and ductility, and low limit value of axial compression ratio, so as to facilitate construction and improve bearing capacity Force and ductility, effect of reducing section size

Inactive Publication Date: 2007-05-16
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the further popularization and application of the special-shaped column frame structure, such as the application to buildings with more floors and higher heights, is limited by its own characteristics: in order to match the size of the wall, the special-shaped column has a small cross-section. Therefore, its bearing capacity will be limited. The axial compression ratio limit of special-shaped cross-section columns used in engineering is relatively low; compared with ordinary rectangular cross-section columns, its column limbs are relatively weak, relatively insufficient in seismic capacity, and poor in ductility
Existing studies have found that the bearing capacity and ductility of reinforced concrete special-shaped columns are relatively low, so improving their bearing capacity and ductility has become the main problem in changing the seismic performance of special-shaped columns

Method used

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  • Profiled steel and steel pipe concrete profiled pile and method for making same
  • Profiled steel and steel pipe concrete profiled pile and method for making same
  • Profiled steel and steel pipe concrete profiled pile and method for making same

Examples

Experimental program
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Embodiment 1

[0025] In this embodiment, the cross section of the steel-steel concrete special-shaped column is a combination of a circle and a rectangle, that is, a table tennis racket-shaped cross section as shown in FIG. 1 . The steel pipe 2 adopts a combination of a circular and a rectangular steel pipe, and a section steel 1 is arranged inside the steel pipe 2. The section steel 1 of the circular section part is composed of two I-shaped section steels intersecting at the center of the circle, and the arrangement is in a cross shape. The section steel web 4 on the extension line of the symmetry axis is extended to the end of the rectangular section away from the circular section, and at the same time the flange 5 is welded in the direction perpendicular to the web 4 at this end, when the long side of the rectangular section is greater than or equal to When the length of the short side is twice as long, a steel strip 7 parallel to the flange 5 is welded on the steel web in the rectangular...

Embodiment 2

[0032] The cross section of the steel-steel concrete special-shaped column in Example 2 is a combination of a circle and two rectangles, that is, the cross section shown in FIG. 2 . The steel pipe 2 is combined with one circular and two rectangular steel pipes, and the rest are the same as in the first embodiment.

[0033] The production method is basically the same as in Example 1, except that in the third step, two vertical slits are cut on the steel pipe wall of the circular steel pipe along the column length, and the distance between the two slits on the circular steel pipe is a quarter of a circle. arc.

Embodiment 3

[0035] The cross section of the shaped steel-concrete filled steel tubular column is a cross section as shown in Figure 3.

[0036] The steel pipe 2 is combined with two rectangular steel pipes, and the steel pipe 1 is arranged inside the steel pipe 2, which is formed by the cross combination of two rectangular steel pipes. Through welding, the section steel 1 is continuous and integral in the entire special-shaped column. All the other are with embodiment 2.

[0037] The production method is basically the same as in Example 1, except that in the third step, two vertical slits are cut on the steel pipe wall of a rectangular steel pipe along the length direction of the column, and these two vertical slits are located on the plane of the symmetrical axis of the short direction of the rectangular steel pipe. , and then set it with the section steel 1, and then weld the rectangular steel pipe gap with the section steel web 4; cut the other rectangular steel pipe into two parts al...

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Abstract

The invention involves a section steel-steel pipe concrete column with special lateral section and the production belonging to the field of special-shaped columns. The shape of the cross-section of section steel-steel pipe concrete special-shaped column is the cross-section which combined by circular and rectangular or two or more rectangular. Right amount of section steel (1) is installed in the steel pipe concrete special-shaped column and is continuous to forming a unit in the special-shaped column. The steel pipe wall of the corner of steel pipe combination extends to section steel knitting (4) and is welded with the section steel knitting, reinforced bar sections (6) or rivets are welded on the outside of the section steel flange (5). The invention can meet the higher building functional requirements of high-rise buildings, the bearing ability is higher, the ductility is better and the aseismic behavior is stronger compared the prior reinforcement concrete special-shaped column and the steel pipe concrete special-shaped column.

Description

technical field [0001] The invention relates to a shaped steel-steel tube concrete special-shaped column and a manufacturing method thereof, belonging to the field of special-shaped column structures. Background technique [0002] With the rapid development of my country's economy, people have higher requirements for the function and appearance of housing construction. In order to meet professional functional requirements such as buildings, many reinforced concrete special-shaped columns have appeared in high-rise building structures, such as cross-sectional shapes such as table tennis bats, T-shaped, cross-shaped, Z-shaped, and L-shaped columns. The seismic performance of these special-shaped columns is lower than that of traditional rectangular and circular cross-section columns, and the current "Code for Design of Concrete Structures" and "Code for Seismic Design of Buildings" fail to provide relevant design methods. [0003] my country is an earthquake-prone country. Bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34
Inventor 曹万林张建伟王敏范艳飞
Owner BEIJING UNIV OF TECH