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Section design of a bridge pier against blast impact

A technology of explosive impact and action, applied in bridge construction, bridges, bridge parts, etc., can solve problems such as harsh conditions of use, and achieve the effect of convenient material collection, simple production, and strong concealment

Inactive Publication Date: 2018-04-03
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Application number CN201510699296.5 proposes an anti-explosion energy-consuming light steel structural column, aiming at the technical field of ordinary civil buildings, in the application of bridge pier columns, controlled by the durability design of bridge structural pier columns, this steel structure design method is not suitable for Bridge piers, especially sea-crossing bridges, face corrosive seawater environments, and the service conditions will be more severe

Method used

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  • Section design of a bridge pier against blast impact
  • Section design of a bridge pier against blast impact

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as figure 1 , figure 2 As shown, a section design of a bridge pier against blast impact, including a first anti-explosion component and a second anti-explosion component arranged sequentially from outside to inside;

[0044] The first anti-explosion component includes a closed outer steel plate 2, a first Kevlar layer 3, a foamed aluminum layer 4, a second Kevlar layer 5 and a closed inner steel plate 6 arranged sequentially from outside to inside;

[0045]The second anti-explosion member includes a truss central support steel pipe 13, a plurality of truss peripheral support steel pipes 11, a sine-like steel truss 14, a cosine-like steel truss 15, stirrups 8, longitudinal bars 9, first connectors 7 and the second connector 12;

[0046] The plurality of truss peripheral support steel pipes 11 are parallel and evenly distributed in the circumferential direction of the vertical truss center support steel pipe 13, and the number of truss peripheral support steel pip...

Embodiment 2

[0066] like figure 1 , figure 2 As shown, a section design of a bridge pier against blast impact, including a first anti-explosion component and a second anti-explosion component arranged sequentially from outside to inside;

[0067] The first anti-explosion component includes a closed outer steel plate 2, a first Kevlar layer 3, a foamed aluminum layer 4, a second Kevlar layer 5 and a closed inner steel plate 6 arranged sequentially from outside to inside;

[0068] The second anti-explosion member includes a truss central support steel pipe 13, a plurality of truss peripheral support steel pipes 11, a sine-like steel truss 14, a cosine-like steel truss 15, stirrups 8, longitudinal bars 9, first connectors 7 and the second connector 12;

[0069] The plurality of truss peripheral support steel pipes 11 are parallel and evenly distributed in the circumferential direction of the vertical truss center support steel pipe 13, and the number of truss peripheral support steel pipes...

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Abstract

The invention discloses bridge pier stud section design having resistance to explosion impact, belongs to the technical field of bridge engineering structure and aims to solve the technical problem by providing a novel bridge pier stud section to effectively cope with explosion impact. The novel bridge pier stud section comprises a first anti-explosion component and a second anti-explosion component sequentially arranged from outside to inside, the first anti-explosion component comprises a sealing outer steel plate, a first Kevlar layer, a foam aluminum layer, a second Kevlar layer and a sealing inner steel plate, the second anti-explosion component comprises a first truss center supporting steel pipe, multiple truss periphery supporting steel pipes, a sine-like steel truss, a cosine-like steel truss, stirrups, longitudinal bars, first connecting members and second connecting members, the truss periphery supporting steel pipes are connected with the sealing inner steel plate through the second connecting members, and the second anti-explosion component surrounded by the sealing inner steel plate is integrally filled with an inner concrete layer uniformly. And the bridge pier stud section design is applied to bridge piers having requirements on explosion resistance.

Description

technical field [0001] The invention relates to a cross-section design of a bridge pier against blast impact, which belongs to the technical field of bridge engineering structures. Background technique [0002] As the supporting system of the bridge structure, the bridge pier column structure transmits the superstructure dead load, vehicle load, crowd load and other loads to the foundation. Once damaged, the stress mode of the overall bridge structure will be changed, and even the bridge structure will be damaged if the damage is serious. continuity collapses. Risks such as deliberate terrorist attacks, enemy torpedo attacks, production and transportation of industrial dangerous goods will all lead to damage to the bridge pier structure. At present, there is a lack of national and industrial normative guidance for the anti-blast design of bridge pier structures in my country. The construction projects of complex three-dimensional traffic bridge structures and sea-crossing b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/02
CPCE01D19/02
Inventor 耿少波李洪陈淑萍刘亚玲王万月张鹏周鑫王泽宇
Owner ZHONGBEI UNIV
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