Composite protective structure resistant to blast shock

A composite protection structure and explosion impact technology, which is applied in the direction of earthquake resistance, building components, protective buildings/shelters, etc., can solve the problems of secondary damage protection structures, difficult to repair quickly, easy to crack, etc., to eliminate explosion shock collapse Phenomenon, improving the resistance level, improving the effect of structural ductility

Active Publication Date: 2018-09-04
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of the existing protective structure layer in the field of construction, such as being unable to bear load, being difficult to withstand multiple explosion impacts, being easily cracked by the impact and causing secondary damage, and difficult to quickly repair the protective structure. Point truss honeycomb composite anti-explosion layer structure of the main load-bearing material

Method used

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  • Composite protective structure resistant to blast shock
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Examples

Experimental program
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Effect test

Embodiment 1

[0029] A novel point-truss honeycomb concrete composite protection structure, comprising an energy-absorbing layer 3, a truss-type compression layer 2 and a honeycomb-type tensile layer 1.

[0030] The honeycomb tensile layer 1 includes a honeycomb structure, and the honeycomb structure is filled with concrete to form the bottom formwork of the structure.

[0031] The truss-type compression layer 2 includes a truss structure; the truss structure is welded on the honeycomb structure to form an integral formwork structure; concrete is poured above the honeycomb structure to a height of 15 cm above the top rod of the truss structure.

[0032] The structural surface layer of the truss-type compression layer 2 is laid with an energy-absorbing layer 3 .

[0033] During specific implementation, the energy-absorbing layer is made of foamed aluminum material with a thickness of 20 mm.

[0034] The truss-type compression layer is a lattice truss structure, the truss height is 120mm, th...

Embodiment 2

[0037] A novel point-truss honeycomb concrete composite protection structure, comprising an energy-absorbing layer 3, a truss-type compression layer 2 and a honeycomb-type tensile layer 1.

[0038] The honeycomb tensile layer 1 includes a honeycomb structure, and the honeycomb structure is filled with concrete to form the bottom formwork of the structure.

[0039] The truss-type compression layer 2 includes a truss structure; the truss structure is welded on the honeycomb structure to form an integral formwork structure; concrete is poured above the honeycomb structure to a height of 15 cm above the top rod of the truss structure.

[0040] The structural surface layer of the truss-type compression layer 2 is laid with an energy-absorbing layer 3 .

[0041] During specific implementation, the energy-absorbing layer is made of foamed concrete material with a thickness of 10mm.

[0042] The truss-type compression layer is a lattice truss structure, the height of the truss is 150...

Embodiment 3

[0045] A novel point-truss honeycomb concrete composite protection structure, comprising an energy-absorbing layer 3, a truss-type compression layer 2 and a honeycomb-type tensile layer 1.

[0046] The honeycomb tensile layer 1 includes a honeycomb structure, and the honeycomb structure is filled with concrete to form the bottom formwork of the structure.

[0047] The truss-type compression layer 2 includes a truss structure; the truss structure is welded on the honeycomb structure to form an integral formwork structure; concrete is poured above the honeycomb structure to a height of 15 cm above the top rod of the truss structure.

[0048] The structural surface layer of the truss-type compression layer 2 is laid with an energy-absorbing layer 3 .

[0049] During specific implementation, the energy-absorbing layer is made of foamed concrete material with a thickness of 50 mm.

[0050] The truss-type compression layer is a point truss structure, the height of the point truss i...

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Abstract

The invention discloses a composite protective structure resistant to blast shock which is mainly a point truss honeycomb integral protective structure formed by a honeycomb tensile layer and a lattice truss-type compression resistance layer through welding spots and connecting keys, and a foam energy absorbing layer is added on the outer layer. According to the composite protective structure, theforce transmission path of a concrete protective structure under the action of blast is innovatively optimized, the resistance level of the protective structure can be greatly improved, and the structure ductility is improved; and the dispersion of concrete fragments in the structure can be restrained, and the phenomenon of blast and explosion-induced collapse of similar traditional concrete protective structures is eliminated.

Description

technical field [0001] The invention belongs to the field of protection engineering, in particular to a composite protection structure resistant to explosion impact. Background technique [0002] Explosion shock wave is a strong compression wave. At the moment of explosion, the explosive material releases a large amount of energy in a limited space and in a very short time, and a large number of high-temperature and high-pressure products are produced. Rapidly squeeze the surrounding medium, making the pressure, density, temperature of the medium And other physical quantities rise rapidly to form a shock wave. Explosion shock waves will cause great damage to structures and personnel. The role of protective structures is to protect the safety of buildings and personnel, and effectively reduce the peak overpressure of shock waves. [0003] At present, most military buildings cannot adopt underground protective engineering structures, and more key buildings are mostly exposed ...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/04
Inventor 马钢张玉李世强王志华武瑛
Owner TAIYUAN UNIV OF TECH
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