Detachable assembly type steel pipe concrete column-composite beam node and construction method thereof

Abstract

The invention relates to a detachable assembly type steel pipe concrete column-composite beam node. The detachable assembly type steel pipe concrete column-composite beam node comprises prefabricatedconcrete-filled steel tubular columns, prefabricated I-beams and precast reinforced concrete slabs. The prefabricated I-beams are arranged on the left and right outer sides of the prefabricated concrete-filled steel tubular columns. Each prefabricated concrete-filled steel tubular column is connected with each prefabricated I-beam through fastening bolts. Each precast reinforced concrete slabs issheathed outside each prefabricated concrete-filled steel tubular column and arranged on each prefabricated I-beam. The invention also relates to a construction method of a detachable assembly type steel pipe concrete column-composite beam node. The detachable assembly type steel pipe concrete column-composite beam node and the construction method thereof have the advantages of simple structure design, reasonable stress, high efficiency and convenience, convenient construction, easy disassembly and wide application prospect.

Description

technical field [0001] The invention relates to a detachable assembled steel pipe concrete column-composite beam node and a construction method thereof. Background technique [0002] Prefabricated buildings have the advantages of energy saving, water saving, short construction period, and high construction quality. Therefore, the promotion of prefabricated buildings has become one of the priorities of the Ministry of Housing and Construction. In order to promote the development and application of this type of construction mode and the industrial upgrading of construction enterprises, the state and local governments have issued a large number of construction standards, and a large amount of research work has been carried out in recent years; It has the advantages of high strength, high rigidity, and good seismic performance. It also has the characteristics of small cross-section, light weight, and convenient construction. It is in line with the national trend of vigorously de...

AI Technical Summary

Problems solved by technology

At present, the joints between circular steel pipe concrete columns and composite beams in actual engineering are mostly connected by welds. This type of joints has the following problems: 1) The stiffness is high, and brittle failures are likely to occur at the welds when earthquake loads act; 2) The joints are affected by climate and The level of the welder is greatly affected, and the construction quality is not easy to guarantee; 3) It does not have a detachable function, and the damaged beam is not easy to replace

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