Hollow interlayer steel pipe concrete column tension-torsion test loading device

Abstract

The invention relates to a hollow interlayer steel pipe concrete column tension-torsion test loading device. The loading device comprises a counterforce pier, a pressure bar, a connection board, a disc, a horizontal pulling jack, a horizontal tension transducer, a tension bearing, a horizontal tension connecting piece, a roller support, a pedestal, a vertical tension jack, a vertical tension transducer, a vertical tension connecting piece and a wire rope; the horizontal tension jack transmits the pulling force to a hollow interlayer steel pipe concrete column through the horizontal tension transducer, the tension bearing, and the horizontal tension connecting piece, the tension bearing is used for freely rotating the hollow interlayer steel pipe concrete column; the vertical tension jack is fixed at the disc at the end part of the hollow interlayer steel pipe concrete column for applying torque through the vertical tension transducer, the vertical tension connecting piece and the wire rope, and the roller support is used for offset the vertical force generated when the torque is applied. The hollow interlayer steel pipe concrete column tension-torsion test loading device solves the problem that the torque change rule is inconstant during rotation and test processes when the tension is applied in the test.

Description

technical field [0001] The invention relates to a test device, in particular to a loading device for a tensile and torsion test of a hollow interlayer concrete filled steel tube column. Background technique [0002] In civil engineering, when the side columns of the hollow interlayer concrete-filled steel tube frame are subjected to wind and earthquake loads, tension and torsion may occur. At present, no relevant literature has been found on the test of the tension and torsion of the hollow interlayer concrete-filled steel tube column. The main reason is that the loading device is difficult to realize. constant, and can only be approximated; there is a large gap between the test results and the finite element analysis results, and cannot guide engineering practice well. Contents of the invention [0003] The invention provides a loading device for tensile and torsion tests of hollow interlayer concrete filled steel pipe columns, which is easy to assemble and can be recycl...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a loading device for tensile and torsion tests of hollow interlayer concrete filled steel pipe columns, which is easy to assemble and can be recycled, and solves the two problems of affecting the rotation of the hollow interlayer concrete steel tubular columns when the tensile force is applied in the tensile torsion test and the inconstant torque variation law during the test process. problem, after using this loading device, the tensile and torsion test results of hollow sandwich concrete filled steel tube columns are in good agreement with the finite element analysis results

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