Thin-wall steel combined column partially filled with ultra-high toughness cement-based composite material

Abstract

The invention discloses a thin-wall steel combined column partially filled with an ultra-high toughness cement-based composite material. Two thin-wall flange plates are arranged in parallel, a thin-wall web plate is connected between the two thin-wall flange plates to form an H-shaped structure, the outer edges of the two thin-wall flange plates are connected through tie rods, the ultra-high toughness cement-based composite material is filled between the thin-wall web plate and the thin-wall flange plates, and the ultra-high toughness cement-based composite material can be wrapped by the thin-wall flange plates and the thin-wall web plate to form a columnar structure. The thin-wall steel combined column partially filled with the ultra-high toughness cement-based composite material can overcome the defects that an existing section steel concrete column is too heavy in dead weight, complex in node structure and complex in construction process and needs a large number of construction templates, and the construction cost, the steel content, the section flexibility, the crack resistance and the deformation capacity are superior to those of existing partially-filled concrete composite column.

Description

technical field [0001] The invention belongs to the technical field of building structures, in particular to a thin-walled steel composite column partially filled with ultra-high toughness cement-based composite materials. Background technique [0002] At present, steel and concrete composite columns are widely used in construction projects, which have high bearing capacity and good fire resistance. However, the concrete material has low tensile strength, is easy to crack, and has poor ductility, which does not match the deformation capacity of the steel column, which affects the mechanical properties of the composite column. And for the composite column, the section steel is completely filled in the concrete, which causes the composite column to be self-heavy, the joints are complicated and the construction period is long. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a thin-walled steel composite column part...

AI Technical Summary

Problems solved by technology

However, the concrete material has low tensile strength, is easy to crack, and has poor ductility. It does not match the deformation capacity of the steel column, which affects the mechanical properties of the composite column.

And for the composite column, the section steel is completely filled in the concrete, resulting in a large self-heavy composite column, complex joints and long construction period

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