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A kind of underwater bridge pier cast type polyurethane composite anti-collision fence and preparation method thereof

A technology of composite materials and polyurethane, applied in the field of bridge construction, to achieve the effect of good durability, enhanced rigidity and toughness, and effective undertaking

Active Publication Date: 2022-07-01
山西凝固力新型材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not suitable for collision prevention with piers of completed waterway bridges

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, a polyurethane composite material anti-collision fence of water bridge pier casting is described. The anti-collision fence is arranged on the outer side of the lower structure of the bridge pier, and the outer layer is a basalt fiber reinforced plastic sleeve that plays a role in shaping; the basalt fiber reinforced plastic sleeve Between the tube and the bridge pier is a buffer layer of polyurethane composite material, which is formed by on-site pouring of fiber-reinforced water glass modified polyurethane material and stone;

[0033] The basalt fiber reinforced plastic sleeve is a sleeve device made of basalt fiber reinforced unsaturated polyester, epoxy resin, phenolic resin or various composite resins, the thickness of the sleeve is 8mm, and the diameter of the sleeve is determined by the specific conditions of the bridge pier site .

[0034] The polyurethane composite buffer layer is formed by pouring on-site with the components A, B, and C with...

Embodiment 2

[0052] In this embodiment, a polyurethane composite material anti-collision fence of water bridge pier casting is described. The anti-collision fence is arranged on the outer side of the lower structure of the bridge pier, and the outer layer is a basalt fiber reinforced plastic sleeve that plays a role in shaping; the basalt fiber reinforced plastic sleeve Between the tube and the bridge pier is a buffer layer of polyurethane composite material, which is formed by on-site pouring of fiber-reinforced water glass modified polyurethane material and stone;

[0053] The basalt fiber reinforced plastic sleeve is a sleeve device made of basalt fiber reinforced unsaturated polyester, epoxy resin, phenolic resin or various composite resins, the thickness of the sleeve is 9mm, and the diameter of the sleeve is determined by the specific conditions of the bridge piers .

[0054] The polyurethane composite buffer layer is formed by pouring on-site with the components A, B, and C with sto...

Embodiment 3

[0072] In this embodiment, a polyurethane composite material anti-collision fence of water bridge pier casting is described. The anti-collision fence is arranged on the outer side of the lower structure of the bridge pier, and the outer layer is a basalt fiber reinforced plastic sleeve that plays a role in shaping; the basalt fiber reinforced plastic sleeve Between the tube and the bridge pier is a buffer layer of polyurethane composite material, which is formed by on-site pouring of fiber-reinforced water glass modified polyurethane material and stone.

[0073] The basalt fiber reinforced plastic sleeve is a sleeve device made of basalt fiber reinforced unsaturated polyester, epoxy resin, phenolic resin or multiple composite resins, the thickness of the sleeve is 9mm, and the diameter of the sleeve is determined by the specific conditions of the pier diameter on site. Certainly.

[0074] The polyurethane composite buffer layer is formed by pouring on-site with the components ...

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Abstract

The invention belongs to the field of bridge construction, and in particular relates to an underwater bridge pier pouring type polyurethane composite anti-collision fence and a preparation method thereof. The technical scheme of the present invention is composed of A component, B component, C component and stones, and the outermost layer is a basalt fiber reinforced plastic sleeve for shaping. Component A: 87-94 parts of water glass, 5-2 parts of glycerol, 3-2 parts of triisopropanolamine, 4-1.5 parts of water, 1-0.5 parts of CUCAT‑WN catalyst; Component B: 75- 81 parts of PAPI, 15-12 parts of polyurethane prepolymer, 3-2 parts of dioctyl phthalate, 1-0.5 parts of AUCAT-101 catalyst, 1-0.5 parts of CUCAT-U2 catalyst, 1.5-1 part of defoamer , 2.5 parts of anti-hydrolysis agent, 1-0.5 parts of anti-mold agent; C component: 10-20 parts of fiber bundles and 200-600 parts of stones. The C component fiber bundles are mixed into the stones, the A and B mixtures can be poured while placing the stones and the fiber bundles, and the mixture can be obtained after curing. The invention has the characteristics of good water resistance and anti-collision performance.

Description

technical field [0001] The invention belongs to the field of bridge construction, and in particular relates to an underwater bridge pier pouring type polyurethane composite anti-collision fence and a preparation method thereof. Background technique [0002] Ships crashing into bridges are happening all over the world, and the frequency of ships crashing into bridges is much higher than people think. Ship collision is one of the main reasons for the collapse of bridges crossing the waterway, and the consequences are extremely serious: the ship is destroyed, people are lost, the waterway is blocked, the land transportation is interrupted, and the water environment is polluted. Therefore, it is very necessary to install anti-collision facilities on the navigation bridge piers. At present, there are many types of anti-collision facilities for bridge piers at home and abroad, and their basic principles are designed based on energy absorption and momentum buffering. Each anti-col...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26
CPCC04B28/26C04B2201/50C04B14/02C04B14/14C04B14/28C04B14/42C04B24/282C04B24/026C04B24/122C04B24/045C04B2103/10C04B2103/67C04B2103/50C04B2103/0068C04B2103/608
Inventor 王二中李万捷范福洋薄鸿鹏王千雅常澔男王涛柴亚跃
Owner 山西凝固力新型材料股份有限公司
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