Steel-reinforced concrete core column and manufacturing method thereof

Abstract

The invention relates to a construction member, in particular to a steel-reinforced concrete core column and a manufacturing method thereof. The core column comprises steel tubes, steel plates and concrete; a plurality of steel tubes are arranged in the core column, and the steel tubes are connected through the steel plates; a plurality of longitudinal ribs are arranged at the peripheries of the steel tubes, and the longitudinal ribs are bound by stirrups; the concrete is poured in the steel tubes and gaps between the steel tubes and the longitudinal ribs; and concrete protective layers are arranged outside the longitudinal ribs. The method comprises the following steps: firstly, fixing the steel tubes at the cross points of longitudinal limbs and transverse limbs of the core column and in the end parts of the limbs, and welding the steel tubes together through the steel plates; arranging the longitudinal ribs, and binding and fixing the longitudinal ribs by the stirrups; arranging templates outside the longitudinal ribs; pouring the concrete in the steel tubes, curing the concrete to reach the compressive strength of the concrete, making the core column of the steel tubes bear the load firstly, and then pouring the concrete between the outsides of the steel tubes and the templates to form the concrete protective layers outside the longitudinal ribs so as to form an overlapped column; and removing the templates. The core column has the advantages of high bearing capacity, good stability and the like.

Description

technical field [0001] The invention relates to building components, in particular to a steel frame-steel tube concrete core column and a manufacturing method thereof. Background technique [0002] Since our country is located between two earthquake zones in the world, it is a country with frequent earthquakes; coupled with the painful lessons of the Wenchuan Earthquake on May 12, 2008, the main reason for the collapse of many houses is that the seismic performance is too poor, and the structure of the houses is exhausted. Ability is vulnerable. Therefore, in order to enhance the seismic performance of the house, it is imperative to enhance the earthquake resistance of the main components of the house, and the concrete column in the house is one of them. According to the "three-level principle" of earthquake design in my country and the principle of conceptual design, that is, the design concept of strong columns and weak beams, it is first necessary to ensure that concrete...

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Problems solved by technology

[0004] In order to solve the above-mentioned problems existing in the existing concrete columns, the object of the present invention is to provide a steel-reinforced steel-concrete-filled steel tube core column with high bearing capacity and seismic performance, and at the same time improve the bearing capacity of each limb and its manufacturing method

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