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Reinforced concrete frame node

A technology of reinforced concrete and reinforced concrete beams, which is applied to building components, floor slabs, buildings, etc., can solve the problems of difficult cross-sectional size and longitudinal reinforcement ratio, and achieve the effect of preventing continuous collapse

Inactive Publication Date: 2010-09-15
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, how to strengthen these existing "strong beam and weak column" structures is restricted by many conditions. For example, it is very difficult to increase the cross-sectional size of the column or increase the longitudinal reinforcement ratio of the column. processing is also a technical gap that needs to be filled

Method used

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  • Reinforced concrete frame node
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A reinforced concrete frame joint, see attached figure 1 , in the figure, a reinforced concrete column 1, a first reinforced concrete beam 2, a second reinforced concrete beam 3, a third reinforced concrete beam 4, a fourth reinforced concrete beam 5, a reinforced concrete floor 6, and a corner joint 7.

[0020] The reinforced concrete floor 6 around the intersection of the reinforced concrete column 1 and the reinforced concrete beam is provided with open angle joints 7 on the steel bars, and the open angle joints 7 are broken with the steel bars at the intersection of the reinforced concrete column 1 and the reinforced concrete beam. open state.

[0021] In this embodiment, the intersection points between the reinforced concrete column 1 and the first reinforced concrete beam 2, the second reinforced concrete beam 3, the third reinforced concrete beam 4 and the fourth reinforced concrete beam 5 are in the shape of a "cross" cross structure, and The corner joint 7 is ...

Embodiment 2

[0026] A reinforced concrete frame joint, see attached figure 2 , in the figure: reinforced concrete column 1, first reinforced concrete beam 2, open angle joint 3, second reinforced concrete beam 4, reinforced concrete floor slab 5, third reinforced concrete beam 6.

[0027] The reinforced concrete floor slab 5 around the intersection of the reinforced concrete column 1 and the reinforced concrete beam is provided with open angle joints 3 on the steel bars, and the open angle joints 3 are broken with the steel bars at the intersection of the reinforced concrete column 1 and the reinforced concrete beam. open state.

[0028] In this embodiment, the intersection of the reinforced concrete column 1 and the first reinforced concrete beam 2, the second reinforced concrete beam 4 and the third reinforced concrete beam 6 is a "T" cross structure, and the open angle joint 3 is placed in the intersecting reinforced concrete beam. Between the angles between the beams; that is: the re...

Embodiment 3

[0033] A reinforced concrete frame joint, see attached image 3 , in the figure: reinforced concrete column 1, first reinforced concrete beam 2, corner joint 3, reinforced concrete floor slab 4, second reinforced concrete beam 5.

[0034] In this embodiment, the reinforced concrete column 1 is located at the intersection of two reinforced concrete beams, that is, as image 3 As shown, the reinforced concrete column 1 is located at the intersection of the first reinforced concrete beam 2 and the second reinforced concrete beam 5, and the open angle joint 3 is placed in the steel bar between the angle between the first reinforced concrete beam 2 and the second reinforced concrete beam 5 Concrete floor 4 on.

[0035]For the existing cast-in-place reinforced concrete frame structure, cutting equipment can be used to cut the corner joint 3 on site, and the top reinforcement on the reinforced concrete floor 4 at the intersection of the reinforced concrete column 1 and the reinforce...

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Abstract

The invention relates to a civil engineering structure, in particular to a reinforced concrete frame node comprising a reinforced concrete column, a reinforced concrete beam and a concrete floor, wherein angle cracks are arranged on the concrete floor around the intersection point of the reinforced concrete column and the reinforced concrete beam. Compared with the prior art, the invention has the advantages that the angle cracks arranged on the concrete floor around the intersection point of the reinforced concrete column and the reinforced concrete beam changes the structure of strong beam and weak column into a structure of strong column and weak beam, which enables the structure to perform an integral mechanism during earthquake damage and prevents continuous collapse of the structure during the earthquake damage.

Description

Technical field: [0001] The invention relates to a civil engineering structure, in particular to a reinforced concrete frame node. Background technique: [0002] Earthquake, as an unpredictable natural disaster, has brought huge disasters to human society and caused great loss of life and property. Due to the difficulty of earthquake prediction and prediction research, the research on how to improve the seismic performance of building structures has become the main measure to reduce earthquake disasters. The research on structural earthquake damage shows that under strong earthquake, the failure mechanism of cast-in-place reinforced concrete frame structures is very complicated. It is generally believed that the failure mechanism of reinforced concrete frame structures (that is, the plastic hinge of components) can be divided into the overall mechanism (beam-hinge mechanism), the floor mechanism (column-hinge mechanism) and the hybrid mechanism composed of the two mechanism...

Claims

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Application Information

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IPC IPC(8): E04B1/58E04B5/16
Inventor 苏幼坡葛楠王兴国陈海彬韩建强
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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