Static test device for research on collapse resistance performance of space steel frame composite beam-column structure

Abstract

The invention discloses a static test device for studying the collapse resistance performance of a space steel frame composite beam-column structure, comprising an A-type bracing member, a full-length ground beam, a left gantry, a right gantry, a gantry beam, and hydraulic servo actuation. The A-type brace includes a first A-type brace, a full-length ground beam and a second A-type brace, and the front side of the full-length ground beam is provided with a tenth Shaped ground beam, the rear side of the full-length ground beam is provided with a second cross-shaped ground beam, the left side of the full-length ground beam is provided with a third cross-shaped ground beam, and the right side of the full-length ground beam is provided with a fourth cross-shaped ground beam The device can effectively avoid the problem of incomplete transmission of loads caused by the instability of the actuator end.

Description

technical field [0001] The invention relates to a static test device, in particular to a static test device for researching the anti-collapse performance of a space steel frame composite beam-column structure. Background technique [0002] With the development of society, steel structures are more and more widely used due to their advantages of high strength, strong plasticity and toughness, light manufacturing, and short construction period. At the same time, people have put forward higher requirements for the safety and robustness of the structure. On the basis of meeting the traditional design, some important new building structures are also required to be resistant to accidental loads (impacts, explosions, etc.). Progressive collapse, for the evaluation of the resistance to progressive collapse of the existing building structure, the structural measures or increased structural redundancy are used to improve the collapse resistance of the structure, so as to prevent the l...

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Problems solved by technology

At the same time, people have put forward higher requirements for the safety and robustness of the structure. On the basis of meeting the traditional design, some important new building structures are also required to be resistant to accidental loads (impacts, explosions, etc.). Progressive collapse, for the evaluation of the resistance to progressive collapse of the existing building structure, the structural measures or increased structural redundancy are used to improve the collapse resistance of the structure, so as to prevent the large-area collapse of the structure from continuous damage, so it is necessary to evaluate the space steel frame composite beam The anti-collapse performance of the column structure is subjected to static performance tests. However, in the prior art, during the test process, the end of the actuator is prone to instability and causes incomplete load transfer, which seriously affects the test results.

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