Static test device for researching anti-collapse performance of space steel frame combined beam column substructure

Abstract

The invention discloses a static test device for researching anti-collapse performance of a space steel frame combined beam column substructure. The static test device comprises an A-shaped support component, a full-length ground beam, a left gantry, a right gantry, a gantry cross beam, a hydraulic servo actuator, a combined inner column and a second A-shaped support claw-shaped outer hoop, the A-shaped support component comprises a first A-shaped support, a full-length ground beam and a second A-shaped support; a first cross-shaped ground beam is arranged on the front side of the full-lengthground 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 groundbeam, the right side of the full-length ground beam is provided with a fourth cross-shaped ground beam, and the device can effectively avoid the problem of incomplete load transmission caused by instability of the end of the actuator.

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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