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Method for preventing explosion damage by using steel-concrete combined structure

A combined structure and concrete technology, applied in building construction, architecture, etc., can solve problems affecting the mechanical safety of the overall structure and preventing structural damage.

Inactive Publication Date: 2013-05-08
63653 FORCES PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In protective engineering, in order to resist the impact of explosions, concrete or reinforced concrete is generally used to form a protective structure system, but under the impact of strong explosions, local damage of such protective structures is significant, and even seriously affects the mechanical safety of the overall structure; ( Such as Fang Qin, Design Principles of Conventional Weapon Protection, Engineering College of Engineering Corps, 2007)

Method used

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  • Method for preventing explosion damage by using steel-concrete combined structure
  • Method for preventing explosion damage by using steel-concrete combined structure
  • Method for preventing explosion damage by using steel-concrete combined structure

Examples

Experimental program
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Embodiment

[0029] 1. Steel-concrete composite members:

[0030] 1) The experiment uses two semicircular concrete blocks with an outer diameter of 1160mm, a length of 1000mm, and an inner diameter of 180mm. A Q 345R steel pipe with a length of 600mm, an inner diameter of 141mm, and a wall thickness of 9mm is placed inside the concrete block, and there is no plugging at both ends; After the explosion experiment with 425g TNT explosive in the center, it was detected that the surface concrete at the parting surface of the explosion center of the concrete block was crushed, and the concrete at the explosion center had obvious compaction marks, but the concrete block as a whole was not damaged; The residual deformation of the circular tube is used as the basis for evaluating the protective effect, and the specific impulse absorbed by the steel structure I s and the specific impulse absorbed by concrete I c The research results show that for the concrete structure with the same thickness, when...

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Abstract

The invention provides a method for preventing explosion damage by using a steel-concrete combined structure. According to the method, the combined structure consists of a concrete casting and a cylindrical or arch-shaped cylindrical steel casting; when the combined structure is used, two ends are not plugged; quantitative trinitrotoluene (TNT) explosive is put in the center of a steel pipe, so that the explosion impact can be effectively protected; and the steel casting is made of a Q345R steel pipe. In order to prevent the local damage of the protective structure under the explosion impact from affecting the whole safety in the conventional protective engineering, the invention provides a steel-concrete combined explosion-proof protective structure and a designing method based on impulse distribution, wherein the structure and the method have important reference values.

Description

technical field [0001] The invention relates to the field of protection engineering, and uses a steel-concrete composite structure to resist strong explosion impact damage, and the effect is excellent. Background technique [0002] In protective engineering, in order to resist the impact of explosions, concrete or reinforced concrete is generally used to form a protective structure system, but under the impact of strong explosions, local damage of such protective structures is significant, and even seriously affects the mechanical safety of the overall structure; ( Such as Fang Qin, Design Principles of Conventional Weapon Protection, Engineering College of Engineering Corps, 2007). In order to improve the anti-damage performance of the protective structure, considering that the impact of strong explosion has the characteristics of short action time, high energy density and local damage effect, a steel-concrete composite anti-blast protective structure covering the overall s...

Claims

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Application Information

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IPC IPC(8): E04B1/92
Inventor 不公告发明人
Owner 63653 FORCES PLA
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