A type of steel area confined concrete rectangular column and its manufacturing method

Abstract

The invention discloses a rectangular column of shaped steel area restrained concrete and a manufacturing method thereof. The invention comprises the use of longitudinal steel bars and stirrups to manufacture the skeleton of a rectangular columnar structure. When manufacturing the skeleton of a rectangular columnar structure, the Set up profiled steel, and make the profiled steels on the four corners parallel to each other, then arrange the longitudinal reinforcement between the profiled steels in parallel, and connect the profiled steel and the longitudinal reinforcement as a whole with stirrups perpendicular to the longitudinal reinforcement, thus forming a three-dimensional network Rectangular columnar structure of rectangular column structure, and then the concrete and rectangular columnar structure of steel reinforcement are poured as a whole according to the traditional concrete pouring method, so that the rectangular column of concrete with section steel area restraint can be obtained. Compared with the prior art, the invention not only has the advantages of better restraint effect and higher overall strength of the column, but also has the advantages of lower steel consumption, lower manufacturing cost and higher reliability.

Description

technical field [0001] The invention relates to a steel area-constrained concrete rectangular column and a manufacturing method thereof, belonging to the technical field of concrete building structures. Background technique [0002] At present, the area-constrained concrete rectangular columns in the prior art generally use longitudinal steel bars and stirrups to form a rectangular column-shaped skeleton. According to actual use and research and analysis, the confinement effect of concrete at the corners of this skeleton member It has a great relationship with the lateral stiffness of the longitudinal reinforcement, the larger the diameter of the longitudinal reinforcement, the greater the lateral stiffness, and the better the restraint effect. However, increasing the diameter of the longitudinal steel bars will greatly increase the amount of steel used, which will lead to an increase in construction costs; in addition, the existing framework made of longitudinal steel bars ...

AI Technical Summary

Problems solved by technology

However, increasing the diameter of the longitudinal steel bars will greatly increase the amount of steel used, which will lead to an increase in construction costs; in addition, the existing framework made of longitudinal steel bars and stirrups into a rectangular columnar structure is subject to repeated loads. The concrete will be hollowed out, which will greatly reduce the restraint effect of the area-constrained concrete rectangular column

Therefore, the confinement effect of the existing area-constrained concrete rectangular column structure is still not ideal

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