Prefabricated concrete frame beam-column self-resetting composite joint connection structure and assembly method

Abstract

The invention proposes a self-resetting composite node connection structure of a prefabricated concrete frame beam and column and an assembling method. The upper and lower sides of the beam end of the structure are installed with slot-type steel plate keys, and the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam are perpendicular to each other and pass through The strip-shaped connecting steel plate and the slotted steel plate key are connected together by the cooperation, the strip-shaped connecting steel plate and the slotted steel plate key are fixed by rectangular restraints, and the unbonded prestressed tendons transversely pass through the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam. The whole is formed and fixed at the end by several prestressed tendon anchors. The technical problem of how to minimize the deformation and damage of prefabricated components after earthquakes and ensure the recoverability of the core area of ​​the nodes is solved. A self-resetting composite node connection structure of beam-column assembled concrete frame is proposed. The assembled concrete frame The beam-column joint has a certain self-resetting ability, and can return to the original initial state after the earthquake.

Description

technical field [0001] The invention relates to an assembled concrete frame beam-column self-resetting composite node connection structure and an assembling method, belonging to the technical field of assembled concrete buildings. Background technique [0002] The prefabricated concrete structure has been vigorously promoted in my country in recent years due to its advantages of fast construction speed, energy saving and environmental protection, time saving and high efficiency. In the traditional prefabricated concrete frame structure, only the beam and column components are prefabricated, and the joints need to be cast-in-place, that is, the so-called integral assembly, resulting in a low rate of structural assembly. However, using the cast-in-place node connection method still requires a lot of concrete wet work on the construction site, which cannot meet the development concept of green, environmental protection, energy saving and high efficiency of prefabricated buildin...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of how to minimize the deformation and damage of prefabricated components after the earthquake and ensure the recoverability of the joint core area mentioned in the above background technology, the present invention proposes a prefabricated concrete frame beam-column self-resetting combination The joint connection structure, the assembled concrete frame beam-column joint has a certain self-resetting ability, and can return to the original initial state after the earthquake

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