Prefabricated Concrete Beam and Composite Steel Tube Concrete Column Assembly Structure and Its Construction Method

Abstract

The invention discloses an assembling structure for a prefabricated concrete beam and a composite steel pipe concrete column, and a construction method for the assembling structure. The composite steel pipe concrete column comprises an inner steel pipe and an outer steel pipe; interlayer concrete is arranged between the inner steel pipe and the outer steel pipe; an inner pipe connecting plate is arranged on the inner steel pipe; a plurality of bolt holes are formed in the inner pipe connecting plate; the outer steel pipe comprises an upper outer steel pipe and a lower outer steel pipe; a hole is formed in the bottom of the upper outer steel pipe and is used for assembling the prefabricated concrete beam; the prefabricated concrete beam comprises prefabricated reinforced concrete and pre-buried beam end steel pipes; a beam end connecting plate is arranged in the centre of each pre-buried beam end steel pipe; a plurality of longitudinal reinforcing steel bars are arranged on the periphery of each pre-buried beam end steel pipe; a plurality of bolt holes are formed in each beam end connecting plate; stirrups are arranged on the periphery of each longitudinal reinforcing steel bar; the longitudinal reinforcing steel bars are bent at each beam end in a vertical direction and are anchored in the interlayer concrete; the inner pipe connecting plate is locked and connected with each beam end connecting plate through the corresponding bolts. The assembling structure for the prefabricated concrete beam and the composite steel pipe concrete column has high bearing capacity, high rigidity and high earthquake-resistant ductility.

Description

【Technical field】 [0001] The invention belongs to the technical field of prefabricated assembled structures in civil engineering, and in particular relates to an assembled structure of prefabricated concrete beams and composite steel pipe concrete columns and a construction method thereof. 【Background technique】 [0002] The traditional cast-in-place construction method has a low degree of industrialization, poor construction conditions, time-consuming and labor-intensive, is not conducive to energy conservation and environmental protection, common quality problems are difficult to eradicate, and safety accidents also occur from time to time. The use of prefabricated structures can save energy, water, and materials, greatly reduce construction waste, reduce noise pollution, reduce labor consumption and intensity, effectively improve the construction environment, and improve project quality. [0003] Most of the joints of traditional reinforced concrete beams and concrete-fil...

AI Technical Summary

Problems solved by technology

[0003] Most of the joints of traditional reinforced concrete beams and steel pipe concrete columns are connected by steel bars around. The site needs to install formwork, and the steel bars are bound and connected. The process is complicated and the construction is difficult; the cross-sectional size of the joint joints is large

In the assembly of steel pipe concrete column connection joints, it is mainly connected with steel beams. The joints use end plates and bolts to connect with the external steel pipes of the columns. Difference

At present, there is still a lack of connection structure between precast concrete beams and steel pipe concrete columns, especially for the connection of precast concrete beams and composite steel pipe concrete columns.

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