Reinforced reinforced concrete frame joints

Abstract

The invention discloses an enhanced reinforced concrete frame joint. The enhanced reinforced concrete frame joint comprises a reinforced steel bar skeleton and a restraint steel skeleton, concrete ispoured in and out of the reinforced steel bar skeleton and the restraint steel skeleton. The restraint steel skeleton comprises restraint steel vertically and symmetrically arranged at the four corners of a column, and the restraint steel is connected through welding of connection batten plates or bolted connection. A columnar reinforced steel bar skeleton comprises columnar longitudinal ribs arranged on the four sides of the columnar section, and the columnar longitudinal ribs are arranged in the restraint steel skeleton. Cross beam reinforced steel bar skeleton comprises cross beam force bearing ribs, and a longitudinal beam reinforced steel bar skeleton comprises longitudinal beam force bearing ribs. The cross beam force bearing ribs and the longitudinal beam force bearing ribs are arranged in the restraint steel skeleton in an intersecting mode, and both penetrate through through-holes in the side walls of the restraint steel or the gaps among the restraint steel. By arranging therestraint steel skeleton in a joint area, the construction technology of the joint area is simplified, the phenomenon of dense stirrups in the joint area is avoided, dense pouring of concrete in the joint area is facilitated, the construction quality is ensured, and the anti-seismic properties such as bearing force and ductility of the joint core area are improved obviously.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a reinforced reinforced concrete frame node. Background technique [0002] Reinforced concrete frame structures are widely used in the field of civil engineering in my country. The core area of ​​the joint is an extremely important hub of the frame structure and a key part of maintaining the integrity of the structure. my country is an earthquake-prone country. Under the action of earthquakes, the core area of ​​the joint becomes the weak part of the frame structure due to the complex action of bending moment, shear force and axial force. The core area of ​​the joint is often subjected to horizontal shear force several times that of the column, which is prone to shear brittle failure. Although the code for seismic design of buildings "GB50011-2010" stipulates the design principles of "strong shear and weak bending, strong columns and weak beams, strong nodes and weak comp...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the complex construction process of ordinary reinforced concrete frame joints, intensive reinforcement in the joint area, difficulty in pouring compaction, insufficient seismic performance such as bearing capacity and ductility, and failure to meet the requirements of "strong shear weak bending, strong column weak beam, strong column weak beam, etc. "Strong joint" requirements and other issues, overcome the shortcomings of the existing technology, and provide a reinforced reinforced concrete frame joint

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