Node connection device for self-centering prestressed concrete frame

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 frame structure. 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, are respectively 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...

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

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