Steel plate local buckling test device with sliding block and test method thereof

Abstract

The invention discloses a steel plate local buckling test device with a sliding block and a test method of the steel plate local buckling test device. The test device comprises a pedestal, an axial loading assembly, a non-loading edge constraint assembly and a one-way constraint assembly. A plurality of axial grooves are formed in the pedestal in the axial direction in a penetrating mode, the one-way restraining assembly comprises a plurality of threaded ejector rods, the number of the threaded ejector rods is equal to that of the axial grooves, each threaded ejector rod comprises at least onethreaded ejector rod body, and all the threaded ejector rod bodies in each threaded ejector rod body are correspondingly inserted into the corresponding axial grooves. The threaded ejector rods are sleeved with pressure sensors and nuts, the lower end faces of the pressure sensors abut against the pedestal, the upper end faces of the pressure sensors abut against the nuts, and the top ends of thethreaded ejector rods abut against the test piece steel plate. The non-loading edge constraint assemblies are respectively arranged on the left side and the right side of the test piece steel plate in the vertical axial direction, each non-loading edge constraint assembly comprises a fixed seat and a sliding block, a sliding groove is formed in the fixed seat in the axial direction, the sliding block is embedded into the sliding groove, and the test piece steel plate is connected with the sliding block.

Description

technical field [0001] The invention relates to the technical field of steel plate buckling tests, in particular to a steel plate local buckling test device with a slider and a test method thereof. Background technique [0002] In recent years, with the rapid development of social economy, a large number of high-rise and super high-rise buildings have begun to emerge. In these building structures, steel-concrete composite components such as pure steel plate shear walls, steel plate concrete composite shear walls, and steel tube concrete columns have become more and more popular. more and more applications. However, with the application of high-strength concrete and high-strength steel, the width-to-thickness ratio of the outer steel plate of these components is also increasing, and the problem of local buckling of the steel plate has gradually become prominent, which has attracted the attention of engineers. In terms of cost economy, when thin-walled composite members are u...

AI Technical Summary

Problems solved by technology

For example, the loading design is unreasonable, the equipment at the loading end cannot accurately apply load to the steel plate alone, the lateral restraint force generated by the inner concrete cannot be considered, and the role of boundary conditions cannot be accurately considered. The current experimental research is based on specific components. The results are not of general significance, etc.

These problems directly restrict the research progress of the local buckling performance of steel structures and composite structures.

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