Fabricated concrete frame beam-column self-resetting friction joint connecting structure and assembling method

Abstract

The invention provides a fabricated concrete frame beam-column self-resetting friction joint connecting structure and an assembling method. Longitudinal friction connecting steel pieces of the connecting structure are installed on the upper portion and the lower portion of an embedded steel plate in a column, transverse friction connecting steel pieces are installed on the upper side and the lower side of the end of a prefabricated concrete beam, wherein the longitudinal friction connecting steel pieces and the transverse friction connecting steel pieces are connected through rotating shaft bolts at the junction of beam-column joints, and the inner and outer plate walls of a first arc-shaped friction steel plate and a second arc-shaped friction steel plate between the longitudinal friction connecting steel pieces and the transverse friction connecting steel pieces are in close contact along the arc-shaped boundary and are connected through sliding bolts, and the pre-tightening force applied to the rotating shaft bolts and the sliding bolts can effectively ensure the flexural rigidity of the joints, so that the joints are kept in an elastic state when the earthquake action is small. According to the connecting structure, the technical problems of how to effectively improve the energy dissipation capacity of the joints and how to reduce damage and destruction of the structure under the action of an earthquake to the maximum extent are solved, connection between the prefabricated concrete beam and the prefabricated concrete column is achieved, and the requirements in actual design and construction are met.

Description

technical field [0001] The invention relates to an assembled concrete frame beam-column self-resetting friction node connection structure and an assembly method, belonging to the technical field of assembled concrete buildings. Background technique [0002] Prefabricated concrete structure has become one of the important development directions in the field of building structure in the 21st century due to its advantages of energy saving, environmental protection, convenient construction, and high degree of industrialization, and it has also been rapidly promoted in my country's construction industry. At present, in this research field, the academic and engineering circles are focusing on how to safely, efficiently and reliably improve the seismic performance of the joints of prefabricated structural nodes and avoid unnecessary structural damage and destruction. [0003] In the traditional prefabricated concrete structure, in order to achieve the purpose of "equivalent to cast...

AI Technical Summary

Problems solved by technology

A large number of experimental research results show that this type of connection can ensure the stiffness and bearing capacity of the joint connection area, and the force is reliable, but the energy consumption is poor, and the grouting is prone to brittle failure under repeated earthquake loads

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