Test device for components under the coupled action of long-term load-corrosion-lateral impact load

Abstract

The invention discloses a test device for a component under the effect of long-term load-corrosion-lateral impact load coupling. The device comprises a test piece, a long-term load loading device, a corrosion box and a lateral impact load loading device; and the actual stress condition of a steel tube concrete column under the multi-disaster working condition can be simulated truly through the device. A long-term load and corrosion effect is applied to the test piece firstly; a long-term load is applied to the test piece by a pre-stress generated by tensioning precisely rolled screw thread steel by a jack; the test piece is corroded through the corrosion box; after a preset time, the long-term load loading device and the corrosion box are integrally placed under the lateral impact load loading device; and a long-term load loading mode is changed into a hydraulic oil pump and a disc spring for loading, and then an impact test is carried out. The test piece is detachably connected with the long-term load loading device, the corrosion box and the lateral impact load loading device, and can be recycled, so that time and materials are saved.

Description

technical field [0001] The invention relates to a test supporting device for a component under the coupling action of multiple disasters, in particular to a test device for a component under the coupling action of long-term load-corrosion-lateral impact load, and belongs to the field of test research on building structural components. Background technique [0002] Exposed concrete-filled steel pipe structural components give full play to the characteristics and potential of steel pipes and concrete, making them have a series of excellent characteristics such as high strength, good toughness, and convenient construction. In recent years, they have been more and more widely used in industrial and civil buildings. , large bridges and underground structures and other important engineering fields. The exposed concrete-filled steel tube structural column bears its own weight and the vertical load of the building structure for a long time, which will cause the structure to creep. ...

AI Technical Summary

Problems solved by technology

[0004] In order to simulate the actual stress of the exposed concrete-filled steel tube column under the multi-hazard coupling effect, the long-term load and corrosion are applied to the specimen first, and the specimen and the supporting devices for applying long-term longitudinal load and corrosion are placed directly after the predetermined time Under the lateral impact load loading device, the impact load test is carried out. At the same time, in order to solve the problems of high cost and waste of test piece test materials in the test, and then provide a component under the long-term load-corrosion-lateral impact load coupling effect Under the test device

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