Recyclable complete device for test on bending hysteresis of structural pillar under action of long-time load

Abstract

The invention discloses a recyclable complete device for a test on bending hysteresis of a structural pillar under action of a long-time load and relates to a complete device for the test on the bending hysteresis of the structural pillar. The invention aims to simulate the actual stress condition of the structural pillar of a building and solve the problems of waste caused by the disposability of all materials of a test specimen in the test on the bending hysteresis of the structural pillar, and the like. The device comprises a long-time-load loading device and the test specimen; and two ends of a pillar body are detachably connected with an I-shaped steel beam section of a rigid beam section through a stiffening ear plate and a connecting ring plate which are welded on the pillar body, or two ends of the pillar body are detachably connected with the I-shaped steel beam section of the rigid beam section through the stiffening ear plate and the connecting ring plate, which are fixedlyconnected with the pillar body, of a steel tube pillar head, so the rigid beam sections at the two ends of the pillar body can be recycled. The actual stress condition of the structural pillar of thebuilding is simulated by the long-time-load loading device in a real way, namely a long-time longitudinal load is loaded first, and after the load lasts till a preset time, the matching device is puton the bending hysteresis testing machine directly for a reciprocating horizontal load effect test.

Description

technical field [0001] The invention relates to a supporting device for a compression bending hysteresis test of a structural column, in particular to a recyclable supporting device for a bending hysteresis test of a structural column under a long-term load, and belongs to the field of test research on building structural components. Background technique [0002] The compressive bending hysteretic performance test of building structural columns is one of the important means to study its seismic performance and establish the seismic design method of building structural columns. In actual engineering, building structures are generally subject to earthquakes within a certain period of time after they are completed and put into use, so that the structural columns bear the structure's own weight, normal service loads, and seismic forces at the same time. The former will continue to bear the vertical load of the building structure. Because reinforced concrete columns, steel pipe c...

AI Technical Summary

Problems solved by technology

[0004] In order to simulate the actual force of the structural column of the building, the long-term longitudinal load is applied first, and after the load is held for a predetermined time, the model column and its supporting devices for applying the long-term longitudinal load are directly placed on the compression bending hysteresis performance testing machine for reciprocating horizontal load At the same time, in order to solve the structural column compression bending hysteretic performance test, all the materials of the traditional test specimen can only be used once, and there are problems such as high cost and waste, and then provide a recyclable long-term load. Supporting device for structural column compression bending hysteresis test

Images