Round steel tube confined reinforced concrete column-steel beam frame joint with through steel beam

A technology of reinforced concrete columns and round steel pipes, which is applied in the direction of construction and building construction, can solve the problems of not conforming to "strong joints, affecting the stability and safety of building structures, etc., to avoid the reduction of concrete constraint effect and to simplify the structure , Guarantee the effect of construction quality

Inactive Publication Date: 2016-05-25
CHONGQING UNIV
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Problems solved by technology

[0004] The joint connection and structure directly affect the stability and safety of the building structure. For the steel-concrete composite structure, the joint connection and structure are the key and difficult points. The connection structure of traditional reinforced concrete and steel beams, the b

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  • Round steel tube confined reinforced concrete column-steel beam frame joint with through steel beam
  • Round steel tube confined reinforced concrete column-steel beam frame joint with through steel beam

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[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical idea of ​​the present invention, various substitutions and changes based on common technical knowledge and conventional means in the field should be included in the protection scope of the present invention.

[0026] See figure 1 with figure 2 , A steel beam through-type circular steel tube constrained reinforced concrete column-steel beam frame joint, including column round steel tube Ⅰ1, column round steel tube Ⅱ2, column longitudinal reinforcement 3, column stirrup 4, node area through beam 5, node area Round steel pipe 6, stirrups 7 in the node area and concrete 8.

[0027] The column round steel pipe I1 is arranged perpendicular to the foundation plane. The column round s...

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Abstract

The invention provides a round steel tube confined reinforced concrete column-steel beam frame joint with a through steel beam. The joint comprises a column round steel tube I, a column round steel tube II, the joint zone through beam, a joint zone round steel tube, joint zone stirrups and concrete. The column round steel tube II and the column round steel tube I are located on the upper side and the lower side of the joint zone through beam respectively. The joint zone through beam can transfer bending moment and shearing force to a core zone directly through pins (or other forms of shear keys) on the beam, the steel beam and the joint core zone concrete work jointly, the joint zone round steel tube does not bear shearing force directly and is prevented from buckling, and thus the steel tube can perform the circular confining function fully to confine the joint zone concrete and guarantee the bearing capacity and ductility of the joint. The joint is good in stress performance, it can be guaranteed that the joint is safe, reliable, good in integrality, clear and definite in force transfer and convenient to construct, and the 'strong joint and weak member' design principle can be met.

Description

technical field [0001] The invention belongs to the technical field of building structures, in particular to a circular steel pipe-constrained reinforced concrete column-steel beam frame joint. Background technique [0002] The steel pipe confined concrete column is a composite structure vertical load-bearing member formed by pouring concrete inside the steel pipe. The steel tubes of circular steel tube confined concrete columns are broken at the beam-to-column joints to maximize their confinement. In actual engineering, frame columns are generally affected by the joint action of axial force, bending moment and shear force. Therefore, when applying steel tube confined concrete technology, it is necessary to arrange steel bars in the column to form steel tube confined reinforced concrete columns. [0003] Steel pipe bound reinforced concrete columns have good compressive performance and high rigidity; steel beams have good bending resistance, light weight, and convenient and...

Claims

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Application Information

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IPC IPC(8): E04B1/18E04B1/58
CPCE04B1/185
Inventor 甘丹周绪红刘界鹏闫标程国忠
Owner CHONGQING UNIV
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