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Profiled steel concrete profiled pile and method for making same

A special-shaped column and concrete technology, applied in the direction of columns, pier columns, pillars, etc., can solve the problems of low bearing capacity and ductility, weak column limbs, poor ductility, etc., and achieve improved earthquake resistance, reduced section size, and convenient construction Effect

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The cross-section of the special-shaped steel concrete column is a combination of a circle and a rectangle, that is, the table tennis racket-shaped cross-section shown in Figure 1. The section steel 1 is arranged in the middle of the section, and the section steel 1 of the circular section part is composed of two I-shaped section steels intersecting at the center of the circle, arranged in a cross shape, in which the section steel web 4 on the extension line of the rectangular section lengthwise axis of symmetry extends along this axis of symmetry To the end of the rectangular section away from the circular section, and at the same time weld the flange 5 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 twice the length of the short side, the section steel in the rectangular section A steel strip 7 parallel to the flange 5 is welded on the web (at a certain distance from the flange 5 ). Thr...

Embodiment 2

[0034] The cross-section of the steel concrete special-shaped column in Example 2 is a cross section as shown in FIG. 2 . Section steel 1 is configured in the middle of the section, and section steel 1 is composed of two I-shaped steel crossed at the center point of the intersection of two rectangles, arranged in a cross shape. Through welding, the section steel 1 is a continuous whole in the whole section. The rest are the same

[0035] Example 1.

[0036] The production method is basically the same as in Example 1, except that a step is added between the first and second steps, that is, a reserved hole is processed on the section steel 1 for the stirrup 3 to pass through, and its diameter is 2 mm larger than the diameter of the stirrup to pass through . In the third step, configure the longitudinal bars 2 and stirrups 3 on the outside of the profiled steel. The rectangular stirrups 3 pass through the reserved holes on the profiled steel 1 and bind the longitudinal bars at...

Embodiment 3

[0038] The cross section of the steel concrete special-shaped column in Example 3 is a T-shaped cross section as shown in FIG. 3 . Section steel 1 is arranged in the middle of the section, and section steel 1 is composed of two I-shaped steels intersecting at the center point of the intersection of two rectangles. A steel strip 7 parallel to the flange 5 is welded on the web of the shaped steel in the rectangular section (at a certain distance from the flange 5 ). Through welding, the section steel 1 is a continuous whole in the whole section. All the other are with embodiment 2.

[0039] The manufacturing method is basically the same as that of Example 2, except that the rectangular stirrups 3 pass through the reserved holes on the section steel 1 and bind the longitudinal bars at the corners of the rectangles to form two vertical rectangular steel skeletons, and the two skeletons are T-shaped.

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Abstract

The invention involves a section steel concrete column with special lateral section and methods and belonging to the field of special-shaped columns. The shape of the cross-section of special-shaped column is the cross-section which combined by circular and rectangular or two or more rectangular. The framework of steel reinforcement with the cross-section of circular or rectangular comprises of vertical bars (2) and stirrup (3) together, the section steel (1) is installed in the framework of steel reinforcement, the section steel (1) is continuous forming a unit in the special-shaped column which comprise of section steel knitting (4) and section steel flange (5), reinforced bar sections (6) or rivets are welded on the outside of the section steel flange (5). The invention improves the ductility and the forced ability of the prior reinforced concrete special-shaped column, increases the bearing ability.

Description

technical field [0001] The invention relates to a steel 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. Buildings not only n...

Claims

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Application Information

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