Coating-tube-binder steel-tube-recycled-concrete-column and steel-girder connecting joint and construction method

Abstract

The invention relates to a coating-tube-binder steel-tube-recycled-concrete-column and steel-girder connecting joint and a construction method. The connecting joint comprises a steel-tube recycled concrete column, a steel girder, an internally-arranged steel tube, a coating tube binder and angle iron; the steel-tube recycled concrete column comprises a coating steel tube and recycled concrete with which the coating steel tube is filled, the steel-tube recycled concrete column is connected with the steel girder in a fastened mode through the angle iron, a joint area is formed at the connected position of the steel-tube recycled concrete column and the steel girder, the internally-arranged steel tube is located at the portion, located in the joint area, of the coating steel tube, and the portion, located in the joint area, of the coating steel tube is tightly bound by the coating tube binder in a surrounding mode while the coating tube binder is connected with a web of the steel girder in a fastened mode. No penetrating part exists in the steel-tube recycled concrete column and the joint area, and therefore convenience is brought to casting of the recycled concrete. The recycled concrete is cast in the steel tube column, energy can be saved, the environment can be protected, and recourses can be sustainable utilized. The connecting joint is economical, reliable, easy to manufacture and convenient to construct. On-site welding is avoided, connection of the joint is completely achieved with high-strength bolts, construction is more convenient, and meanwhile the possibility of brittle failure of a welded joint under the seismic effect is eliminated.

Description

technical field [0001] The invention relates to the technical field of innovative utilization of joint connections of steel pipe recycled concrete columns, and in particular to a jacket-clamped steel pipe recycled concrete column and steel beam connection node and a construction method. Background technique [0002] Energy saving and environmental protection are a trend in the development of building structures. Recycled concrete is a green building material that is reprocessed from waste concrete. It has the green and environmental protection advantages of resource recycling, but relatively speaking, it has material defects. Steel pipe confined recycled concrete not only has good mechanical properties of composite structure, but also makes up for the lack of performance of recycled concrete materials, and gives full play to the advantages of resource recycling. [0003] Since its inception, CFST has been more and more widely used in engineering construction due to its super...

AI Technical Summary

Problems solved by technology

At present, a lot of results have been obtained in the research on ordinary CFST beam-column joints, but the joint forms are still relatively small, the quantitative research and analysis are not sufficient, and the joint forms suggested by the code are still difficult to achieve coordination in terms of performance, construction and cost. Of course, it cannot be simply transplanted into the steel tube recycled concrete structure

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