Assembled joint node for column base and construction method

Abstract

Provided is an assembled joint node for a column base and a construction method thereof. The assembled joint node for the column base can be used in a prefabricated reinforced concrete column, a reinforced concrete foundation, a column anchorage longitudinal rib, a grouting sleeve and a foundation anchor steel bar, wherein the foundation anchor steel bar is connected with the column anchorage longitudinal rib through a crack pouring material, and the grouting sleeve is filled full with the crack pouring material; a spliced seam of the reinforced concrete foundation and the prefabricated reinforced concrete column is also filled with the crack pouring material, and the foundation anchor steel bar comprises a vertical part and a horizontal part; the vertical part comprises an upper anchorage section, which extends beyond the upper surface of the reinforced concrete foundation, a middle no-bonding section, which is embedded in the reinforced concrete foundation, and a lower anchorage section; the outside of the middle no-bonding section is provided with an isolation suite which is used for isolating the the middle no-bonding section and preventing the middle no-bonding section from being bonded with concrete; the top surface of the isolation suite is aligned with the upper surface of the reinforced concrete foundation. According to the assembled joint node for the column base and the construction method of the assembled joint node, the deformation capability and the mechanical property of the node at the column base in an assembled structure, the construction is efficient, and the seismic performance is good.

Description

technical field [0001] The invention belongs to the field of prefabricated structure buildings, in particular to a column base node of a prefabricated concrete frame structure and a frame shear wall structure and a construction method thereof. Background technique [0002] At present, in the prefabricated frame structures commonly used at home and abroad, the column foot nodes are mainly connected by grouting sleeves. [0003] The column foot connected by the grouting sleeve bears a large force, and the longitudinal reinforcement in the column bears the largest force at the joint between the column foot and the foundation, and the remaining longitudinal reinforcement is relatively small due to the concrete wrapping, which leads to concentrated deformation of the longitudinal reinforcement at the seams. Under the rare earthquake load, the longitudinal reinforcement at the joint is easy to break due to excessive deformation, resulting in structural damage of the prefabricated...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a prefabricated column base connection node and its construction method, to solve the technical problems of deficiencies in the deformation capacity and mechanical properties of the prefabricated structure column base joints

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