Cylindrical construction part provided with holed stiffening ribs and filled with steel fiber reinforced concrete

Abstract

The invention discloses a cylindrical construction part provided with stiffening ribs and filled with steel fiber reinforced concrete. The cylindrical construction part comprises a square steel pipe which is vertically arranged, multiple vertical stiffening ribs which are respectively arranged on four side walls of the square steel pipe and a steel fiber reinforced concrete pillar which is formed through pouring steel fiber reinforced concrete filled in the lower part of the inner side of the square steel pipe, wherein the multiple vertical stiffening ribs are same in structure and size and are arranged in the same horizontal plane; and the vertical height of the multiple vertical stiffening ribs and the vertical height of a hollow steel pipe are same, the lower part of each vertical stiffening rib is a holed section with multiple through holes, the vertical height of the holed sections and the vertical height of the steel fiber reinforced concrete pillar are same, and the multiple through holes are arranged in a same vertical line from top to bottom. The cylindrical construction part provided by the invention has the advantages of simple structure, reasonable design and simpleness in construction, good stressing performance, and can overcome the problems of the conventional steel pipe concrete, such as large self weight, poor cohesive force between a steel pipe and concrete and poor structural integrity; moreover, the seismic performance of the integral structure is improved.

Description

technical field [0001] The invention relates to a concrete-filled steel tube column, in particular to a column-shaped structural part which is arranged with open-hole stiffeners and filled with steel fiber concrete. Background technique [0002] At present, due to its good ductility and bearing capacity in earthquakes, square concrete-filled steel tubular columns have been widely used in industrial and civil buildings. In the square concrete-filled steel tube column structure, the outer steel plate is used as a formwork and a stressed member, and ribs are mostly provided inside it to enhance the bonding force between the steel plate and concrete and the local stability of the steel plate. However, in the actual use process, the existing square concrete-filled steel tube columns generally have the following two problems: first, the steel tube concrete columns generally adopt a fully filled concrete structure, so the flexibility of the structure is not enough, which is not con...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a columnar structural member with open-hole stiffeners and filled with steel fiber concrete in view of the deficiencies in the above-mentioned prior art. Well, it can effectively solve the current problems of concrete filled steel pipes, such as self-heavy weight, insufficient bonding force between steel pipes and concrete, and insufficient structural integrity, and at the same time improve the seismic performance of the overall structure

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