Composite protective structure resistant to blast shock

By designing a point-truss honeycomb composite protective structure, combined with a honeycomb tensile layer, a truss-type compression layer and an energy-absorbing layer, the problem that the existing protective structure cannot bear load, cannot withstand multiple explosion impacts, and is prone to collapse is solved, achieving Higher explosion resistance and structural ductility reduce explosion damage to buildings and simplify the repair process.

CN108487490AInactive Publication Date: 2018-09-04TAIYUAN UNIVERSITY OF TECHNOLOGY
9 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TAIYUAN UNIVERSITY OF TECHNOLOGY
Filing Date
2018-04-16
Publication Date
2018-09-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing protective structures are unable to bear load, cannot withstand multiple explosion impacts, are prone to collapse causing secondary damage, and are difficult to repair quickly.

Method used

A point truss honeycomb composite protective structure is adopted, including a honeycomb tensile layer, a truss compression layer and an energy-absorbing layer. The overall formwork is formed by welding the truss structure and filling concrete, and is combined with foam materials as an energy-absorbing layer to improve compression and resistance. tensile capacity, and set shear keys in the structure to achieve two-way collaborative deformation.

Benefits of technology

It significantly improves the resistance level and structural ductility of the protective structure, reduces the dispersion of concrete fragments, eliminates the explosion collapse phenomenon of traditional concrete protective structures, can effectively reduce explosion damage to buildings and personnel, and simplifies the repair process.

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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.
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Citation Information

Patent Citations

  • CN103314168A

  • CN103774769A

  • CN104441802A

  • CN204570986U

  • CN204590298U

Cited By

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  • CN109555160A

  • CN111441381A

  • CN111441381B

  • CN111535838A