Reinforced concrete frame joint with vertical tie bar

A technology of reinforced concrete and joints, which is applied in the direction of building components, earthquake resistance, construction, etc., can solve the problems of unsatisfactory and insufficient seismic performance, and achieve good rigidity, save the amount of steel bars, and facilitate construction

Inactive Publication Date: 2013-07-10
BEIJING UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a kind of reinforced concrete frame joint with vertical tie bar for the insufficient seismic performance such as stiffness and ductility of the above-mentioned reinforced concrete frame joint, which cannot meet the "strong joint" requirement of the seismic code; The stiffness, ductility and other seismic performance of the joint core area

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  • Reinforced concrete frame joint with vertical tie bar
  • Reinforced concrete frame joint with vertical tie bar
  • Reinforced concrete frame joint with vertical tie bar

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Embodiment Construction

[0026] A reinforced concrete frame node with vertical ties, which is a node structure composed of a node core area 1 formed by intersecting columns 2 and beams 3, and a node vertical ties 8 are arranged in the node core area 1, and is characterized in that: Including node core area 1 (the height of the node core area in the vertical direction is hb, the length along the direction of beam longitudinal reinforcement 4 is hc, and the width along the direction of beam stirrup 5 is bc), column 2, beam 3, and beam longitudinal reinforcement 4. Beam stirrups 5, column longitudinal bars 6, column stirrups 7, node vertical tie bars 8; the node core area 1 is a rectangular area formed by the intersection of columns 2 and beams 3; the node vertical tie bars 8 are vertical It is on the plane formed by column 2 and beam 3 and runs through the core area of ​​the node. Node vertical tie bars 8 are arranged on every pair of column longitudinal bars 6 along the direction of beam longitudinal b...

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Abstract

The invention relates to a reinforced concrete frame joint with a vertical tie bar, which belongs to the technical field of reinforced concrete frame beam column joints. The reinforced concrete frame joint with the vertical tie bar comprises a joint core area, a column, a beam, a beam longitudinal bar, a beam stirrup, a column longitudinal bar, a column stirrup and a joint vertical tie bar, wherein the joint core area is a rectangular region formed by intersecting the column and the beam; the joint vertical tie bar with the diameter of 6 mm to 20 mm is configured in the joint core area and vertical to the plane formed by the column and the beam; the tail end of the joint vertical tie bar is made into a 180-degree hook; and the length of the straight section of the end of the hook is not less than 10 times of the diameter of the tie bar. The reinforced concrete frame joint with the vertical tie bar can provide a restraint function for concrete of the joint core area, saves reinforcing steel bars, and can improve the earthquake resistance, such as bearing capacity and ductility, of the joint core area.

Description

technical field [0001] The invention relates to a reinforced concrete frame joint equipped with vertical tension bars, which belongs to the field of design of reinforced concrete frame beam-column joints. Background technique [0002] my country is an earthquake-prone country, and unpredictable earthquakes have caused huge loss of life and property to human society. At the same time, reinforced concrete frame structures are widely used in the field of civil engineering in my country. Due to the suddenness, huge destructiveness and unpredictability of earthquakes, how to improve the seismic performance of reinforced concrete structures is the main problem in preventing earthquake disasters. In the reinforced concrete frame structure, the joint is an important stress-bearing part of the frame structure; under the action of a strong earthquake, the core area of ​​the joint is subject to complex effects of bending moment, shear force and axial pressure, which becomes the weak pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04B1/41E04B1/98
Inventor 李振宝郭二伟解咏平赵春晓黄立
Owner BEIJING UNIV OF TECH
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