Connection and Construction Technology of Prefabricated Steel Tube Concrete Column and Sandwich Concrete Composite Slab

Abstract

The invention provides a connection between a prefabricated steel tube concrete column and a sandwich concrete composite slab and a construction process, wherein the connection includes a steel tube concrete column, a steel plate sandwich concrete composite slab and a connecting component, the steel tube concrete column includes a steel pipe and an overhanging composite slab, and the steel pipe has a Concrete is poured, the extended composite plate includes a steel plate for the extended composite plate, a first connection hole is arranged in the middle of the steel plate for the extended composite plate, the steel pipe passes through the first connection hole, and is welded with the composite steel plate for the extension, the steel pipe inside and the composite steel plate for the extension Concrete is poured on both sides, the steel plate sandwich concrete composite plate includes an upper steel plate and a lower steel plate, there is poured concrete between the upper steel plate and the lower steel plate, the second connecting hole is arranged on the steel plate sandwich concrete composite plate, and the steel pipe concrete column passes through Through the second connection hole, and connected with the steel plate sandwich concrete composite slab through the connecting component, the column-slab structure has high lateral rigidity, and the column and slab are tightly connected, which can transmit internal force well.

Description

technical field [0001] The invention belongs to the field of building structures, and in particular relates to a connection between a prefabricated steel pipe concrete column and a sandwich concrete composite plate and a construction process. Background technique [0002] In construction engineering, in order to save the space occupied by the primary and secondary beams, make the structural space layout more flexible and the plane layout more diverse, the column-slab composite structure can be used for design and construction. The column-slab composite structure is composed of floors and columns. Load-bearing system of the house structure. At this stage, the column-slab composite structure is mainly constructed by the cast-in-place method, that is, the column-slab joints are formed by cast-in-place concrete. The joints of this construction method are prone to stress concentration, and the stress danger area is prone to fracture under the load, and the existing The pouring m...

AI Technical Summary

Problems solved by technology

However, the ordinary prefabricated concrete column-slab composite structure has the disadvantages of small lateral stiffness, poor ductility, poor shear capacity, unbalanced bending moment between the slab and the column, etc., and is prone to brittle failure under the action of earthquake load, so it is suitable Choose a composite structure with better mechanical properties to make the slab-column members of the system and connect the nodes in a reasonable way so that the two can work together

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