Anti-lateral instability device for steel frame structure test

Abstract

The invention discloses a lateral instability prevention device for a steel framework structure test, and belongs to the field of steel structure researches. A beam column test model (4) is fixed on a supporting bottom beam (10); a support platform (1) is fixed on the supporting bottom beam (10) on two sides of a column structure of the beam column test model (4); a column structure sliding support is distributed on the column structure of the beam column test model (4) according to a requirement; a beam structure sliding support is fixed on a cross beam of the beam column test model (4). The positions of the sliding supports can be arranged as required, and assembled structures are adopted.

Description

technical field [0001] The invention relates to steel structure frame test equipment, which belongs to the field of steel structure research in civil engineering specialty. Background technique [0002] With the continuous advancement of science and technology, the rapid development of the national economy, and the continuous increase in national steel production, the status of steel structures in the construction industry has gradually improved. Coupled with the characteristics of light weight and high strength of steel structures, the development of steel structures in the construction industry will only increase. No reduction. The natural disasters caused by major earthquakes have also led scholars from various countries to focus on the study of steel frame ductile joints, and various ductile joints of steel frame structures with different connection forms have emerged. The research at this stage is based on the relevant experimental research of joints, but whether this ...

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Problems solved by technology

For such a steel frame with no floor and no retaining wall, the lateral restraint effect of the floor and retaining wall is lost. For such compression-bending and tension-bending members, the corresponding slenderness ratio definitely does not meet the specification requirements, so when the horizontal load is applied, the entire structure may be damaged due to out-of-plane instability of beams and columns. In this way, the ductile damage of the structure we want cannot be achieved, and the ductility performance of the corresponding ductile joints cannot be obtained, so the related research on ductile joints will fall short.

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