Prefabricated concrete frame dry joints

Abstract

The invention discloses a novel prefabricated concrete frame dry type joint which comprises an upper prefabricated column, a lower prefabricated column, a prefabricated cushion cap, a left prefabricated beam and a right fabricated beam. The centers of the top face of the lower fabricated column and the bottom face of the upper fabricated column are each provided with a cushion cap core installinghole, the prefabricated cushion cap is inserted into the cushion cap core installing hole in the top face of the lower fabricated column through the cushion cap at the bottom face, the cushion cap core at the top face of the prefabricated cushion cap is inserted into a cushion cap core installing hole in the bottom face of the upper prefabricated column, the horizontal ends of the left prefabricated beam and the right prefabricated beam are each provided with an upper end face and an inward lower end face, installing steel ribs are arranged at the inward lower end faces of the left prefabricated beam and the right prefabricated beam, and the left prefabricated beam and right prefabricated beam are inserted into steel reinforcing rib installing reserved holes of the side face of the prefabricated cushion cap. Shear force is transmitted through the bracket part of the cushion cap, the force transmission path of bending moment performed on concrete at the contact positions of longitudinalribs, beams-columns and the beam cushion cap is clear, and the structure is reliable.

Description

technical field [0001] The invention belongs to the technical field of building components, and relates to a dry joint of a prefabricated assembled concrete frame. Background technique [0002] According to the different construction methods of beam-column joints, prefabricated joint connection methods can be divided into wet connection and dry connection. Among them, wet connection is to complete the fabrication of beams, columns and other components in the factory in advance, and then transport the components to the site for assembly and hoisting. Concrete is poured at the beam-column joints to form the beam-column as a whole. The current methods of wet connection mainly include post-casting of node areas, integral prefabrication of nodes and world-structure systems. There is no post-casting tape for dry connection, and the components are completely prefabricated in the factory, and can be put into use after being assembled and hoisted on site. The commonly used dry conn...

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Problems solved by technology

[0004] In order to achieve the above purpose, the present invention provides a prefabricated concrete frame dry joint, which solves the problem of poor ductility of the joints caused by the rigid connection of the fully prefabricated beam-column and column-column joints in the prior art

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