Prefabricated column removal device for continuous collapse of frame structure

Abstract

The invention provides an assembling type post removing device for progressive collapsing of a frame structure, so that a problem that the dynamic structural effect can not be reflected effectively due to long separation time of the traditional post removing device and the structure during the progressive collapsing testing of the building structure at present can be solved. The assembling type post removing device comprises a mechanism post device and a pendulum clock device. The mechanism post device consists of a support seat, an upper rod, a lower rod, a pin shaft, and an organic glass rod; the upper rod and the lower rod are connected with the organic glass rod by the pin shaft; the upper rod and the support seat are connected by the pin shaft; and the lower rod and the support seat are connected by the pin shaft. The pendulum clock device includes a pendulum clock and a connecting-plate-included cross beam; and the pendulum clock and the connecting-plate-included cross beam are connected by the pin shaft. According to the assembling type post removing device, the device is not limited by the bearing force and can be used repeatedly; and the device can be used for simulating an instantaneous failure of the post during progressive collapsing of the building structure, thereby reflecting the dynamic effect of the building structure during the progressive collapsing process actually.

Description

technical field [0001] The invention relates to the continuous collapse of structures caused by instantaneous column removal, in particular to the experimental research on the collapse of planar structures caused by instantaneous column removal. Background technique [0002] Under the action of accidental loads (such as strong earthquakes, impacts, explosions, fires, etc.), building structures are very likely to cause instantaneous failure of vertical support members (columns). When the component fails and withdraws from work, the damaged area forms an unbalanced load. If the damaged structure cannot redistribute and rebalance the unbalanced load, the progressive collapse of the structure will occur. In the continuous collapse caused by the instantaneous failure of vertical support members, the dynamic effect of the structure is particularly obvious. How to make the members instantaneously fail in the collapse test of the structure, so as to study the dynamic effect of the s...

AI Technical Summary

Problems solved by technology

For the impact block method, due to the large friction between the blocks, the separation time between the block and the structure is too long, and the dynamic effect of the structure is difficult to reflect; for the cylinder method, on the one hand, due to the limited load that the cylinder can bear, making The size of the structure should not be too large. On the other hand, the retraction speed of the piston rod is too slow to reflect the dynamic effect of the structure.

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