Concrete filled steel tube specially shaped column suitable for industrial production

Abstract

The invention relates to a concrete filled steel tube specially shaped column suitable for industrial production, which is a cross specially shaped column. The column comprises steel plates, long through bolts and concrete; the steel plates comprise four interior angle steel plates (6) and four U-steel plates (8); the interior angle steel plates (6) comprise corner parts (6-1), two end parts (6-2) and two side parts (6-3); the four interior angle steel plates (6) and the U-steel plates (8) are matched with each other in dimensions; the U-steel plates (8) and the end parts of the adjacent interior angle steel plates (6) are welded and connected respectively to form a cross specially shaped column body; the center and four end part sections of the cross specially shaped column are all square; the side parts of the corresponding interior angle steel plates (6) are consistent in dimensions, are provided with bolt holes, and are fixed and connected by virtue of the long through bolts; concrete is poured in the cross specially shaped column. The concrete filled steel tube specially shaped column disclosed by the invention is suitable for industrial batch production, and quick splicing in a construction site is realized.

Description

Technical field [0001] The invention belongs to the technical field of building structures and relates to an assembled special-shaped steel pipe concrete column. Background technique [0002] The concrete-filled steel tube structure is composed of steel tubes filled with concrete. It uses the interaction of steel tubes and concrete in the stress process, that is, the restraint of the steel tubes on the core concrete, so that the concrete is in a state of three-way compression, so that the concrete The strength is improved and the ductility is improved; at the same time, due to the existence of concrete, the premature local buckling of the steel pipe can be delayed or avoided to ensure the full performance of the steel performance. In the construction process of steel pipe concrete, the steel pipe can be used as the pouring formwork of its core concrete. Compared with reinforced concrete, it can save the cost of the formwork and speed up the construction speed. [0003] The ...

AI Technical Summary

Problems solved by technology

At present, the concrete-filled steel pipe special-shaped columns with plate connection or strip connection are widely used. The defect of these special-shaped columns is that the factory processing is very cumbersome, which is not conducive to batch industrial production. The quality of large and shaped columns cannot be guaranteed

[0004] In order to solve the problems that the concrete-filled steel tube special-shaped columns cannot realize industrialized mass production and the on-site installation and construction procedures are complicated, it is necessary to find a form of steel-filled steel tube special-shaped columns that can not only realize industrialized mass production, but also can be quickly installed and constructed on site.

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