A prefabricated concrete self-resetting beam-column composite node connection structure and assembly method

Abstract

The invention proposes an assembled concrete self-resetting beam-column combined node connection structure and assembly method. The upper and lower sides of the beam end of the connection structure are equipped with grooved steel plates, and the prefabricated reinforced concrete columns and prefabricated reinforced concrete beams are perpendicular to each other and connected by special shapes. The steel plate and the channel steel plate are connected together, and the unbonded prestressed tendon passes through the whole formed by the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam transversely, and is fixed by several prestressed tendon anchors at the end. The technical problem of how to develop a node connection method that is simple and convenient to assemble, has good energy dissipation effect, and can be repaired after an earthquake, or can be restored to the original state is solved. The invention realizes the connection between prefabricated reinforced concrete beams and prefabricated reinforced concrete columns to meet the needs of actual design and construction. The assembled beam-column composite nodes dissipate energy through deformation under the action of earthquakes, and can be quickly replaced and repaired after earthquakes. Has a certain self-resetting ability.

Description

A kind of prefabricated concrete self-resetting beam-column composite node connection structure and assembling method technical field The present invention relates to a kind of prefabricated concrete self-resetting beam-column combined node connection structure and assembling method, belonging to the The technical field of prefabricated concrete construction. Background technique Existing prefabricated concrete structure, in order to achieve the effect of "equivalent to cast-in-place", beam-column prefabrication is often used, and the joints are pouring connection. Compared with the all-in-place structure, although this connection method improves the construction efficiency, the site still needs a lot of The concrete wet operation cannot meet the development concept of green environmental protection, high efficiency and energy saving of prefabricated buildings. In recent years, the use of sleeve irrigation Dry connection technology represented by slurry connection,...

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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