Compound multilayer explosion-proof device used for viaduct pier

A technology of explosion-proof devices and viaducts, which is applied in the direction of road safety devices, bridges, bridge parts, etc., can solve problems such as difficult repairs, collapse of pier columns, explosion of bridge piers, etc., and achieve the advantages of convenient installation and replacement, reduced damage, and reduced damage Effect

Active Publication Date: 2017-01-25
SOUTHEAST UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are anti-knock protection devices for piers below deep water, but the anti-knock protection principle of underwater pier columns is different from that of above-water pier columns, so the anti-knock protection devices of underwater pier columns cannot be used for above-water pier Anti-knock protection of columns
The piers of viaducts are generally located above the road surface (above the water surface), and are more prone to explosion accidents than piers below the water surface. Once the pier columns are damaged, it will inevitably cause the overall collapse of the viaduct, which is more difficult to repair than damage to the bridge deck alone.
Therefore, there is an urgent need for anti-blast protection of viaduct piers, but at present there is no anti-blast protection device for viaduct piers, and it is difficult to carry out anti-b

Method used

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  • Compound multilayer explosion-proof device used for viaduct pier
  • Compound multilayer explosion-proof device used for viaduct pier

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Example Embodiment

[0025] The present invention will be further described in detail below in conjunction with the drawings:

[0026] Such as figure 1 As shown, the composite multi-layer explosion-proof device for viaduct piers of the present invention includes a polymer elastic body 3, a circular steel pipe 5 and an empty cabin.

[0027] The polymer elastomer 3, the circular steel pipe 5 and the empty cabin are arranged on the outside of the bridge pier 1 from the inside to the outside. Among them, the polymer elastomer 3 is glued to the pier 1 and the steel plate 4, and the round steel pipe 5 is welded to the empty cabin. , The empty cabin is composed of an inner steel plate 6 and an outer steel plate 8.

[0028] The surface of the bridge pier 1 is evenly coated with waterproof adhesive after being polished and rough, and the polymer elastomer 3 is glued to the surface of the bridge pier 1. There should be no air bubbles between the polymer elastomer 3 and the bridge pier 1. The surface of the polyme...

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Abstract

The invention discloses a compound multilayer explosion-proof device used for a viaduct pier. The compound multilayer explosion-proof device used for the viaduct pier comprises a macromolecular elastomer, a round steel pipe and a void space which are sequentially arranged outside the pier from inside to outside, wherein the macromolecular elastomer is bonded with the pier and a steel plate by virtue of glue, the round steel pipe is connected with the steel plate and the void space in a welding manner, and the void space is composed of an inner steel plate and an outer steel plate. The compound multilayer explosion-proof device used for the viaduct pier has the advantages that an energy conservation principle is utilized, devices, namely the macromolecular elastomer, the round steel pipe and the void space, are arranged at the periphery of the viaduct pier, dynamic response such as acceleration and displacement of the pier under the action of explosion in the air can be effectively reduced, pressure of shock wave is relieved, action of the pressure of the shock wave on the pier is alleviated, energy, acting on the pier, of the shock wave is absorbed by virtue of plastic deformation of the steel pipe and elastic deformation of the macromolecular elastomer, and damage of the viaduct pier under non-contact explosion and contact explosion load is reduced, so that the aim of protecting the viaduct pier is achieved.

Description

technical field [0001] The invention belongs to the field of disaster prevention and mitigation of bridge structures in civil engineering, in particular to the field of safety of bridge piers in bridge structures, and more specifically relates to an anti-explosion protection device for viaduct bridge piers. Background technique [0002] In recent years, terrorist bombing attacks have occurred frequently, and the explosive destruction of bridge projects through car bombs has become one of the main means for terrorists to achieve their terrorist attack goals; in addition, accidental explosion accidents, such as fireworks explosions, oil and gas, etc. The accidental explosions that occurred in the middle of the accident, the harm caused to the bridge project can not be ignored; more importantly: in the face of the complex and changeable international environment, winning the conventional war under local high-tech conditions has become the goal of our country's defensive national...

Claims

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Application Information

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IPC IPC(8): E01D19/02E01F15/14
CPCE01D19/02E01F15/14E01F15/146
Inventor 宗周红刘路娄凡许有胜
Owner SOUTHEAST UNIV
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