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Buffering energy-absorbing web reinforced composite anti-collision device

A technology of reinforced composite materials and anti-collision devices, applied in road safety devices, climate change adaptation, roads, etc., can solve the problems of high cost, difficult repair, poor anti-collision effect, etc., and achieve good elastic performance and energy absorption effect Good, excellent corrosion resistance effect

Inactive Publication Date: 2012-07-11
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor anti-collision effect, high cost or difficult repair existing in existing bridge anti-collision devices, and to provide a buffer that can fully absorb impact energy, low cost, wide application range and environmental protection Energy-absorbing web-reinforced composite anti-collision device

Method used

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  • Buffering energy-absorbing web reinforced composite anti-collision device
  • Buffering energy-absorbing web reinforced composite anti-collision device
  • Buffering energy-absorbing web reinforced composite anti-collision device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 4 As shown in Fig. 1, a cushioning and energy-absorbing web-reinforced composite anti-collision device, the anti-collision device is a ring-shaped floating rotatable structure that matches the shape of the bridge cap, and the ring-shaped structure is composed of several anti-collision units 1 and It consists of anti-collision buffer facilities 10 arranged inside, and the anti-collision buffer facilities 10 made of rubber fenders are arranged on the inner side of the anti-collision unit 1 at intervals through fasteners 11 made of bolts. The anti-collision unit 1 is composed of a shell 2 and a filling material body 3 filled in the shell 2. The shell 2 is a solid shell composed of a composite material surface layer 4 cured by glass fiber and vinyl resin; the shell 2 The energy-dissipating material 7 inside is made of polyurethane foam, and the outer side of the polyurethane foam is wrapped with biaxial glass fiber cloth, and then the space lattice body 6 fo...

Embodiment 2

[0038] Such as Figure 5 As shown, a cushioning and energy-absorbing web-reinforced composite material anti-collision device, the anti-collision device is a ring-shaped fixed structure matching the shape of the bridge cap, the ring-shaped structure is composed of several anti-collision units 1, the anti-collision The unit 1 is composed of a shell 2 and a filling material body 3 filled in the shell 2. The shell 2 with an arc-shaped cross section is made of a composite material surface layer 4 cured by basalt fiber and epoxy resin and filled on the composite material surface. Layer 4 is composed of sandwich material 5 made of paulownia wood; energy-dissipating material 7 in shell 2 is made of round tubes, and the round tubes are filled in the cavity formed by spatial lattice structure 6 . After the anti-collision unit 1 is prepared in the factory, at the installation site, the steel strand is used as the connector 9 to connect the anti-collision unit 1, and the bolts are used to...

Embodiment 3

[0040] Such as Image 6 As shown, a cushioning and energy-absorbing web-reinforced composite material anti-collision device, the anti-collision device is a ring-shaped fixed structure matching the shape of the bridge cap, the ring-shaped structure is composed of several anti-collision units 1, the anti-collision The unit 1 is composed of a shell 2 and a filling material body 3 filled in the shell 2. The shell 2 with a "7"-shaped cross section is a solid shell composed of a composite material surface layer 4 cured by glass fiber and vinyl resin. body; the energy-dissipating material 7 in the housing 2 is made of polyurethane foam, and the outer side of the polyurethane foam is wrapped with ±45° glass fiber cloth and then laid along multiple layers and directions to form a space lattice body 6 formed by fiber webs 8 , and then adopt The anti-collision unit 1 is integrally formed by a vacuum introduction process. After the anti-collision unit 1 is prepared in the factory, the an...

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Abstract

The invention discloses a buffering energy-absorbing web reinforced composite anti-collision device. The device comprises an anti-collision unit (1); the anti-collision unit (1) comprises a shell (2) and a filling material body (3) positioned in the shell (2); the shell (2) is a solid shell consisting of a composite surface layer (4) or a sandwiched shell consisting of a composite surface layer (4) in which a sandwich material (5) is filled and the sandwich material (5); and the filling material body (3) comprises a spatial lattice body (6) and a dissipative material (7), the spatial lattice body (6) is formed by arranging fiber webs (8) in the shell (2) in a single-layer unidirectional, single-layer bidirectional, multi-layer unidirectional or multi-layer multi-directional mode, and the dissipative material (7) is positioned between the fiber webs (8) and / or the fiber webs (8) and the inner wall of the shell (2). The anti-collision device has the characteristics of low cost, strong anti-collision property and long service life, and is easy to assemble and replace and suitable for popularization and use.

Description

technical field [0001] The invention relates to a bridge or wharf anti-collision structure, especially a low-cost green anti-collision device made of composite materials, specifically a bridge pier, bridge tower, cap, wharf, The buffer energy-absorbing type web-reinforced composite material anti-collision device used for water buildings, marine buildings and ships to reduce impact disasters such as ships, ice floes or vehicles. Background technique [0002] As we all know, ship (vehicle) collision accidents have been happening all over the world, and the frequency of ship collision accidents is much higher than we imagined. The loss of life, property damage, and environmental damage caused by ship-bridge accidents is staggering. Many ship collision accidents range from losses of tens of thousands of yuan to casualties, losses in millions, tens of millions or even billions of dollars, and a large number of indirect losses are even more difficult to calculate. Therefore, it ...

Claims

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Application Information

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IPC IPC(8): E01F15/14E02B3/26
CPCY02A30/30
Inventor 刘伟庆方海祝露陆伟东
Owner NANJING UNIV OF TECH
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