Flexible energy-absorbing anti-impact structure

Abstract

The invention discloses a flexible energy-absorbing anti-impact structure which has high protective capability and a reasonable structure and can protect both the impacted object and the impacting object. The anti-impact structure comprises an outer steel enclosure (1) and an inner steel enclosure (2), a plurality of flexible combined energy-absorbing anti-impact rings (4) are arranged between the inner steel enclosure (2) and the outer steel enclosure (1), the outer steel enclosure (1) is provided with an impact-receiving angle (3), the angle of which ranges from 25 degrees to 170 degrees, and the outer steel enclosure (1) is provided with positioners for reducing the vertical displacement of the outer steel enclosure (1). The whole anti-impact structure can first shift when impact occurs, the viscoelastic anti-impact rings then absorb a great deal of impact energy, and generate a lateral thrust on the impacting object at the same time, so that partial impact energy can be converted into the turning movement energy of the impacting object, and thereby the pier, the anti-impact structure and the moving ship can be prevented from being damaged or the damage of the pier, the anti-impact structure and the moving ship can be reduced to the max.

Description

Technical field: [0001] The invention relates to an anti-collision device capable of reducing the damage caused by a moving object hitting a fixed building, in particular to a flexible energy-consuming anti-collision device particularly suitable for protecting bridge piers. Background technique: [0002] It is a very common phenomenon that fixed buildings are hit. For example, the piers of river or sea-crossing bridges are often hit by ships. For example, a bridge on the Yangtze River has been hit more than 70 times after it was completed. The consequences of this type of pier being hit are very serious. First, the ship is seriously damaged, or even life-threatening. Second, after the pier is hit, there will be major hidden dangers and it is difficult to repair, and the pier will collapse in severe cases. Therefore, anti-collision of bridge piers is essential. One of the currently used anti-collision methods is an indirect method, such as the artificial island method, which...

AI Technical Summary

Problems solved by technology

The above-mentioned indirect methods or direct methods have their own advantages and disadvantages and specific adaptation conditions, and it is difficult for the bridge piers, anti-collision devices and moving ships to avoid damage or only slightly damage after collision, so how to design the bridge piers, The anti-collision device and the ship are not damaged or only slightly damaged when a large ship collides or the collision energy is large. The anti-collision device is very necessary, and it is also a problem that needs to be solved urgently

At present, the above-mentioned research has been done in China. For example, the Chinese utility model patents CN2848937Y and CN2806559Y disclose a kind of energy consumption protection device, which has been significantly improved compared with the aforementioned indirect method or direct method, but there are still links to be perfected. To further improve the anti-collision effect

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