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Steel tube binding type steel high strength concrete pole

A high-strength concrete and concrete technology, applied in the direction of columns, pier columns, pillars, etc., can solve the problems of longitudinal reinforcement and steel flange instability, protective layer falling off, low axial compression ratio limit, etc., to reduce secondary disasters, Improve the fire resistance limit, good fire resistance performance

Inactive Publication Date: 2007-06-27
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the defects of low axial compression ratio limit value of steel concrete columns in the past, under the action of earthquake load, it is easy to cause the protective layer to fall off, the longitudinal reinforcement and the steel flange are unstable, it is difficult to repair after the earthquake, and the defects of high-strength concrete columns are poor in fire resistance. Steel High Strength Concrete Columns Confined by Steel Tubes

Method used

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  • Steel tube binding type steel high strength concrete pole
  • Steel tube binding type steel high strength concrete pole
  • Steel tube binding type steel high strength concrete pole

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specific Embodiment approach 1

[0024] Specific embodiment 1: The present embodiment will be specifically described below in conjunction with Fig. 1, Fig. 2 and Fig. 3. This embodiment is composed of longitudinal bars 1, stirrups 2, concrete 3, steel pipes 4 and section steel 5, and the longitudinal bars 1 are arranged vertically. In the height direction of the longitudinal bar 1, a stirrup 2 for erecting the vertical bar is set, and a section steel 5 is arranged inside the stirrup 2, and a steel pipe 4 is provided outside the stirrup 2, and concrete 3 is poured in the steel pipe 4, and the steel pipe 4 is broken near the end of both ends.

specific Embodiment approach 2

[0025] Embodiment 2: This embodiment will be described in detail below in conjunction with FIG. 2 . In this embodiment, the steel pipe 4 is a round steel pipe, and other components and connections are the same as in Embodiment 1.

specific Embodiment approach 3

[0026] Embodiment 3: This embodiment will be described in detail below in conjunction with FIG. 3 . In this embodiment, the steel pipe 4 is a square steel pipe, and other components and connections are the same as in Embodiment 1.

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Abstract

A steel pipe constrained high-strength steel section-concrete column with high axial pressure ratio and high earthquake-proof and fire-proof performance is composed of several longitudinal reinforcing bars, several reinforcing hoops for fixing said longitudinal reinforcing bars, the steel sections in said reinforcing hoops, the steel pipe surrounding said reinforcing hoops and with both open ends, and concrete cast in said steel pipe.

Description

technical field [0001] The invention belongs to a building structure component, in particular to a high-strength concrete column. Background technique [0002] High-strength concrete has the advantages of high strength, small deformation, and good durability. It can adapt to the needs of modern engineering structures that are large-span, heavy-loaded, high-rise, and withstand harsh environmental conditions. High-strength concrete is an important trend in the development of modern concrete structures. The use of high-strength concrete frame columns in high-rise structures can effectively reduce the section of the column and increase the usable area of ​​the house; at the same time, the reduction of the section size of the frame column increases the slenderness ratio of the column, and the failure mode of the frame column gradually changes from shear failure. Transformed into bending failure, the deformation capacity and ductility of the column are increased, thereby improving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34
Inventor 张素梅刘界鹏王玉银杨华郭兰慧
Owner HARBIN INST OF TECH
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