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

Abstract

The invention provides a fabricated concrete self-resetting beam-column combined joint connecting structure and an assembling method. Groove-shaped steel plates are mounted on the upper side and the lower side of the beam end of the connecting structure, a prefabricated reinforced concrete column and a prefabricated reinforced concrete beam are perpendicular to each other and are connected through cooperation of special-shaped connecting steel plates and the groove-shaped steel plates, unbonded prestressed tendons transversely penetrate through the whole formed by the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam, and the ends of the unbonded prestressed tendons are fixed through a plurality of prestressed tendon anchorage devices. The technical problem of how to develop a joint connecting mode which is easy and convenient to assemble, good in energy consumption effect and capable of being repaired after an earthquake or being restored to the initial state is solved. According to the fabricated concrete self-resetting beam-column combined joint connecting structure and the assembling method, connection between the prefabricated reinforced concrete beam and the prefabricated reinforced concrete column is achieved so as to meet the requirements in actual design and construction, an assembled beam-column combined joint consumes energy through deformation under the earthquake action, can be quickly replaced and repaired after the earthquake and has certain self-resetting capacity.

Description

technical field [0001] The invention relates to a prefabricated concrete self-resetting beam-column combined node connection structure and an assembling method, belonging to the technical field of prefabricated concrete buildings. Background technique [0002] In order to achieve the effect of "equivalent to cast-in-place", the existing prefabricated concrete structures mostly adopt the connection mode of beam-column prefabrication and joint cast-in-place. Compared with the all-cast-in-place structure, although this connection method improves the construction efficiency, it still requires a lot of concrete wet work on site, which cannot meet the development concept of green environmental protection, high efficiency and energy saving of prefabricated buildings. In recent years, dry connection technologies represented by sleeve grouting connection, restrained grout-anchor connection and post-cast belt connection have flourished, and have gradually become the main way of joint ...

AI Technical Summary

Problems solved by technology

A large number of tests and numerical simulation results show that this type of connection can effectively 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

At the same time, various grouting methods are relatively complicated, and it is difficult to replace and repair after damage

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