Steel pipe concrete segment type coat node and its construction method

A technology for CFST and CFST columns is applied in the field of CFST segmented jacket joints and their construction, which can solve the problems of unsatisfactory mechanical properties, poor working performance, limited joint stiffness, etc., and achieves simple and convenient processing and production, joint stiffness. Large, high-capacity effect

Inactive Publication Date: 2009-07-08
DAQING GASOLINEEUM INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, among the existing joints, the anchor plate joint has simple structure, convenient construction, and saves materials, but its mechanical properties are not ideal; another example is the shear ring beam joint, which has outstanding construction and economic advantages, but its Joints have limited stiffness and poor performance under complex stress conditions

Method used

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  • Steel pipe concrete segment type coat node and its construction method
  • Steel pipe concrete segment type coat node and its construction method
  • Steel pipe concrete segment type coat node and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, this concrete-filled steel pipe segmental jacket node includes a concrete-filled steel pipe column and a steel beam 7 connected to the column. The concrete-filled steel pipe column is formed by filling concrete into a steel pipe. The cross-section of the steel pipe is circular. The cross-sectional dimensions of the upper column steel pipe 1 and the lower column steel pipe 2 are equal to those of the lower column steel pipe 2, and the two steel pipes are connected together through the connecting sleeve 3, which is cylindrical, and the connecting sleeve 3 and the lower column steel pipe 2 are separated The outer upper part of the connecting sleeve 3 is installed with the upper reinforcing ring plate 4, the outer lower part of the connecting sleeve 3 is installed with the lower reinforcing ring plate 5, and the left and right sides of the reinforcing ring plate extend horizontally outward to form connecting ears, which are used for fixing with the...

Embodiment 2

[0023] Such as figure 2 As shown, this kind of concrete-filled steel pipe segmental jacket node includes a concrete-filled steel pipe column and a steel beam 7 connected to the column. The concrete-filled steel pipe column is formed by filling concrete into a steel pipe. The cross-section of the steel pipe is square. The steel pipe 2 of the lower column, the steel pipe 1 of the upper column and the steel pipe 2 of the lower column have the same cross-sectional size, and the two steel pipes are connected together through the connecting sleeve 3, which is also square, and it is separated from the steel pipe 2 of the lower column, and connected The outer upper part of the sleeve 3 is installed with the upper reinforcing ring plate 4, and the outer lower part of the connecting sleeve 3 is installed with the lower reinforcing ring plate 5. The reinforcing ring plate is also square. The left and right sides of the reinforcing ring plate extend horizontally outward to form connecting...

Embodiment 3

[0026] Such as image 3 As shown, this concrete-filled steel pipe segmental jacket node is in the form of variable cross-section, and it includes a steel pipe concrete column and a steel beam 7 connected to the column. The steel pipe concrete column is formed by filling concrete into a steel pipe, and the steel pipe section is rectangular. It includes the upper column steel pipe 1 and the lower column steel pipe 2. The cross-sectional dimensions of the upper column steel pipe 1 and the lower column steel pipe 2 are not equal, the upper column steel pipe 1 is thin, and the lower column steel pipe 2 is thick. 3 is separated from the lower column steel pipe 2, and the cross-sectional dimensions of the upper and lower ends of the connecting sleeve 3 are not equal, see image 3 , the connection sleeve 3 is thinner at the top and thicker at the bottom, and the middle is a transition section of variable diameter. The upper outer part of the connection sleeve 3 is installed with the u...

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PUM

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Abstract

The invention relates to a concrete-filled steel tube sectional type sleeve gusset and a construction method thereof, which relate to a connecting gusset for connecting a concrete-filled steel tube column and a girder in civil engineering and a construction method thereof. The concrete-filled steel tube sectional type sleeve gusset comprises the concrete-filled steel tube column and the steel girder which is connected with the column, wherein the concrete-filled steel tube column is formed by filling concrete into a steel tube; the steel tube is formed by connecting an upper column steel tube and a lower column steel tube through a connecting sleeve; the connecting sleeve and the lower column steel tube are in split type; an upper reinforcement ring plate and a lower reinforcement ring plate are arranged outside the connecting sleeve; and a vertical connecting plate is arranged between the upper reinforcement ring plate and the lower reinforcement ring plate. The connecting sleeve and the lower column steel tube in the concrete-filled steel tube sectional type sleeve gusset are in split type, so that the concrete casting strength of the lower column steel tube and the upper column steel tube can be different under the condition of construction, thereby the requirement of strong gussets and weak members can be met. Moreover, the concrete-filled steel tube sectional type sleeve gusset has the advantages of concise and definite force transferring path, large gusset rigidity, high bearing capacity, superior mechanical property, good anti-seismic performance and simple and convenient processing and manufacture.

Description

1. Technical field: [0001] The invention relates to a connecting node for connecting a steel pipe concrete column and a beam in civil engineering, in particular to a steel pipe concrete segmental jacket node and a construction method thereof. 2. Background technology: [0002] Concrete poured into the steel pipe forms a steel pipe concrete member, which is a composite member formed by fusing the two materials of steel pipe and concrete. When under pressure, the concrete in the steel pipe is in a three-way compression state due to the constraints of the steel pipe. The three-way compression concrete not only improves the longitudinal compressive strength, but also improves the elastic modulus and increases the plasticity. For the steel pipe, due to the close adhesion of the concrete, it is fully guaranteed that the steel pipe will not buckle locally, the converted stress can reach the yield strength of the steel, and the strength and bearing capacity of the steel pipe can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/18
Inventor 张文福计静刘迎春赵文艳杨涛
Owner DAQING GASOLINEEUM INST
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