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Node connection device for self-centering prestressed concrete frame

A node connection and prestressing technology, applied in building components, earthquake resistance, construction, etc., to reduce residual deformation, reduce column section size, and ensure safety

Inactive Publication Date: 2011-07-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem: In order to overcome the shortcomings of traditional cast-in-place reinforced concrete frames and fabricated concrete frames, the present invention provides a self-centering prestressed concrete frame node connection device with simple design, convenient processing and remarkable effect, which can effectively Reduce the residual deformation of the structure under the earthquake to reduce the cost of post-earthquake repairs

Method used

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  • Node connection device for self-centering prestressed concrete frame
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  • Node connection device for self-centering prestressed concrete frame

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Embodiment Construction

[0026] The node connection device of the self-centering prestressed concrete frame of the present invention is mainly composed of two parts, the embedded steel parts of beams and columns and the frictional energy dissipation device.

[0027] The beam-column pre-embedded steel parts mainly include column-end reinforced steel plates 4, beam-end reinforced steel plates 5, and shear studs 7. Spiral hoops 9 may also be added to the ends of prefabricated beams. The reinforced steel plate 4 at the end of the column and the reinforced steel plate 5 at the end of the beam are used to improve the local compressive capacity of the reinforced concrete. It is used to provide constraints to the concrete at the end of the beam and improve the local pressure bearing capacity of the concrete. The above-mentioned steel parts are prefabricated together with the prefabricated concrete column 1 and the prefabricated concrete beam 2 in the factory.

[0028] The frictional energy-dissipating parts ...

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Abstract

The invention relates to a node connection device for a self-centering prestressed concrete frame. The node connection device is a device used for the connection between the beam and the column of a prefabricated reinforced concrete frame, and aims at improving energy consumption of a frame structure under seismic action and eliminating or reducing the residual deformation and damage of the framestructure. The connection device is characterized in that combined steel parts form an energy consuming device, two external friction steel plates (3) are arranged in the energy consuming device, arerespectively and symmetrically arranged on the two sides of a column end reinforcing steel plate (4) and are connected with the column end reinforcing steel plate (4) into a whole body, two internal friction steel plates (8) are arranged between the two external friction steel plates (3), the upper end and the lower end of each internal friction steel plate (8) are respectively provided with a bean end reinforcing steel plate (5), friction discs (15) are respectively arranged between the two internal friction steel plates (8) and the two external friction steel plates (3), and friction-type high-strength bolts (12) penetrate through the external friction steel plates (3), the friction discs (15), the internal friction steel plates (8) and a prefabricated concrete beam (2) and connect all parts together.

Description

technical field [0001] The invention relates to a beam-column connecting device of an assembled reinforced concrete frame, which is used for dissipating earthquake energy, and eliminating or reducing residual deformation and damage of the frame structure under earthquake action, thereby reducing the cost of post-earthquake repair. Background technique [0002] Earthquake is one of the natural disasters faced by all mankind. Many strong earthquakes over the years have posed a serious threat to people's lives and property safety. Earthquake damage surveys at home and abroad show that, for common frame structures, the seismic damage in the joint area is very common. Due to the complex stress of the node area, this part often becomes the weakest link in the entire structural system under the action of earthquakes. At the same time, since the nodes play an important role in transmitting, distributing internal forces and ensuring the integrity of the structure in the frame, thei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/58E04B1/98E04B1/22
Inventor 郭彤宋良龙
Owner SOUTHEAST UNIV
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