A joint connection of recycled block concrete composite beam-column and its construction method

Abstract

A joint connection for a recycled block concrete modular beam-column and a construction method therefor A joint comprises a square steel tube recycled block concrete column (1); a U-shaped steel-encased recycled block concrete beam (7); U-shaped steel connectors (6), which are partially reduced at bottoms thereof and which are widened on one end thereof; steel connecting plates (2) which are provided with grooves, and short steel bars (3) which are provided with threads on one end thereof. The U-shaped steel connectors (6) and the steel connecting plates (2) are welded onto an outer wall of a square steel tube (11) which is located in a core area of the joint. The short steel bars (3) are welded into the grooves of the steel connecting plates (2) on one end, while on the other end being connected, by means of a steel sleeve (4), to longitudinal bars (5) at a top part of the U-shaped steel-encased recycled block concrete beam (7). The joint prevents the longitudinal bars of the beam from traversing the core area, increasing the anti-seismic capability of the entire structure while expediting construction.

Description

technical field [0001] The invention relates to the technical field of waste concrete recycling, in particular to a node connection of a recycled block concrete composite beam-column and a construction method thereof. Background technique [0002] At present, the mining of natural sand and stone damages the environment and the reserves are decreasing day by day. As a precious "special resource", the recycling of waste concrete has attracted more and more attention at home and abroad. Compared with recycled coarse aggregate and recycled fine aggregate, the use of larger-scale waste concrete blocks can greatly simplify the recycling process of waste concrete. [0003] U-shaped steel-clad steel-concrete beams are a new type of composite member that has emerged in recent years. Compared with traditional reinforced concrete beams, the use of U-shaped steel-clad steel beams can not only reduce the steps of steel bar binding and formwork removal, but also significantly improve cons...

AI Technical Summary

Problems solved by technology

In addition, if the longitudinal reinforcement of the beam passes through the core area of ​​the joint according to the traditional method, it will inevitably cause great difficulties in the construction of large-scale waste concrete blocks in the column and the core area of ​​the joint.

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