Composite sandwich structure cable bridge

A technology of composite materials and cable trays, applied in the direction of pipeline supports, electrical components, pipes/pipe joints/pipe fittings, etc., can solve the problems of easy corrosion and cost increase, and achieve the effects of low cost, high production efficiency and wide application range

Inactive Publication Date: 2013-08-14
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, steel is easy to corrode in a humid exposed environment, and

Method used

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  • Composite sandwich structure cable bridge
  • Composite sandwich structure cable bridge
  • Composite sandwich structure cable bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 8 As shown, a composite material sandwich structure cable tray, the structure is composed of a groove unit 1 and a cover unit 2. The trough unit 1 includes a side plate 4 and a bottom plate 3. The trough unit 1 is a sandwich entity composed of a composite material surface layer 6 and a sandwich material 7 filled in the surface layer and a lattice web 8. The composite material surface layer 6 It is a solid shell made of glass fiber and vinyl resin cured at high temperature; the sandwich filling material 7 in the composite surface layer 6 is made of Paulownia wood core material, and there is a lattice web 8 between the Paulownia wood core materials. The web 8 is formed by laying biaxial glass fiber cloth along multiple layers and directions, and then adopts a pultrusion process to integrally form the groove unit 1 . After the trough unit 1 is prepared in the factory, the cover unit 2 is directly pultruded by adding a layer of glass felt on the upper and l...

Embodiment 2

[0045] Such as Figure 9As shown, a cable bridge with a composite material sandwich structure, the bridge adopts a groove unit 1 with a bottom plate 3 as a sandwich structure and a side plate 4 as a laminated plate form, which can be used for heavy-duty pipeline transportation devices for new subways, bridges and tunnel structures. The structure is composed of a groove unit 1 , a cover unit 2 and a fastener 10 . The trough unit 1 is composed of a side plate 4 and a bottom plate 3. The side plate 4 is composed of a composite material surface layer 6, which is a solid shell made of glass fiber and vinyl resin cured at high temperature. The shape of the side plate 4 is an inverted "L" , Punch holes on the upper end for later assembly. The bottom plate 3 is composed of a composite material surface layer 6 and a sandwich material 7 filled in the surface layer, without lattice webs. The groove unit 1 is integrally formed by a pultrusion process. After the trough unit 1 is prepare...

Embodiment 3

[0047] Such as Figure 10 As shown, a cable tray with a composite material sandwich structure, the bridge uses a grooved unit 1 bottom plate 3 is a hollow shell structure with ribs and the side plate 4 is a laminated plate form, which can be used for heavy-duty pipelines in newly built subways, bridges and tunnel structures The delivery device can also be used to replace damaged bridge sections. The structure consists of a trough unit 1 and a cover unit 2. The trough unit 1 is composed of a side plate 4 and a bottom plate 3. The side plate 4 is a solid shell composed of a composite material surface layer 6 cured by glass fiber and vinyl high-temperature resin. Its shape is an inverted "I" shape, and the bottom plate 3 is a ribbed hollow shell structure, which is composed of a diagonal rib lattice web 8 and a composite material surface layer 6 . The groove unit 1 is integrally formed by glass fiber and vinyl resin solidified at high temperature through a pultrusion process. ...

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Abstract

The invention discloses a composite sandwich structure cable bridge which is convenient to popularize and simple and convenient to construct, can effectively improve rigidity and can realize high load bearing capacity and large span. The composite sandwich structure cable bridge comprises a trough type unit and a cover plate unit, the trough type unit comprises side plates and a bottom plate, the side plate and bottom plate structure comprises one or combination of a solid shell comprising a composite surface layer, a sandwich solid body comprising a composite surface layer and sandwich materials, a sandwich solid body comprising a composite surface layer and a lattice web plate and a sandwich solid body comprising a composite surface layer, sandwich materials and a lattice web plate, and each of the side plates and the bottom plate is provided with at most one solid shell structure comprising the composite surface layer. The composite sandwich structure cable bridge can be arranged on large communication and power transmission lines of subways, bridges and the like.

Description

technical field [0001] The present invention relates to a cable bridge structure, in particular to a trough-type cable bridge made of composite materials, specifically, it is installed on large-scale communication and power transmission lines such as subways and bridges, which can realize high load capacity and large size. , Long-span composite material sandwich structure cable tray. Background technique [0002] With the further implementation of my country's western development strategy, the construction of my country's transportation, communication and other infrastructure has ushered in a new cycle. Over the years, people have gradually realized the superiority of FRP composite cable trays through the process of changing the materials of cable trays from wood, iron plates, galvanized sheets to hand-laid and molded FRP cable trays. With the development of modern industry, the increase in the span of modern workshops and the extension of the service life of cable bridges ...

Claims

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Application Information

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IPC IPC(8): F16L3/00H02G3/04
Inventor 刘伟庆施冬齐玉军陆伟东方海
Owner NANJING UNIV OF TECH
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