Damage-controllable steel tube-reinforced concrete column and manufacturing method thereof

A technology of concrete-filled steel tube and laminated columns, which is applied in the direction of columns, pier columns, pillars, etc., can solve the problems of poor ductility, large residual deformation, and difficult repair of steel tube concrete columns, so as to reduce tensile deformation, reduce crack width, Achieving Damage Controllability Effects

Pending Publication Date: 2018-08-10
BEIJING UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a controllable damage-controllable concrete-filled steel-filled composite column and its manufacturing method in order to solve the problems of poor ductility, large residual deformation after earthquake and difficult repair existing in the prior art.

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  • Damage-controllable steel tube-reinforced concrete column and manufacturing method thereof
  • Damage-controllable steel tube-reinforced concrete column and manufacturing method thereof
  • Damage-controllable steel tube-reinforced concrete column and manufacturing method thereof

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0028] figure 1 A stru...

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Abstract

The invention relates to the technical field of structural engineering and discloses a damage-controllable steel tube-reinforced concrete column and a manufacturing method thereof. The damage-controllable steel tube-reinforced concrete column comprises a steel tube and a reinforcement cage, the steel tube is arranged in the reinforcement cage, and first concrete is poured into a space between thesteel tube and the reinforcement cage to realize anchoring. The reinforcement cage is formed by connection of stirrups and longitudinal ribs anchored into the first concrete, and is characterized in that the longitudinal ribs include first longitudinal ribs and second longitudinal ribs, strength of the first longitudinal ribs is lower than that of the second longitudinal ribs, and the second longitudinal ribs are reinforcing steel bars with outer surfaces having weak bonding characteristics. The damage-controllable steel tube-reinforced concrete column has the advantage that secondary rigidity, residual displacement control and damage controllability can be realized.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a damage-controllable concrete-filled steel tube composite column and a manufacturing method thereof. Background technique [0002] With the rapid development of my country's construction industry, high-rise and large-scale complex building structures have higher and higher performance requirements for steel and concrete. In high-rise and large-scale complex building structures, columns are the key vertical load-bearing components, so the development of columns with good seismic performance and high resilience is the core issue in the earthquake-resistant and disaster-mitigation design of high-rise and large-scale complex buildings. As a new building material, high-strength concrete has the advantages of high compressive strength, strong deformation resistance and good durability, and is widely used in the production of columns. However, high-strength concrete als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34B28B15/00B28B23/02
CPCE04C3/34B28B15/00B28B23/02
Inventor 张建伟彭超锋李翔宇乔崎云
Owner BEIJING UNIV OF TECH
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