CN103758114A - Locally-enhanced fiber-reinforced composite sheet pile - Google Patents
Locally-enhanced fiber-reinforced composite sheet pile Download PDFInfo
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- CN103758114A CN103758114A CN201410010155.3A CN201410010155A CN103758114A CN 103758114 A CN103758114 A CN 103758114A CN 201410010155 A CN201410010155 A CN 201410010155A CN 103758114 A CN103758114 A CN 103758114A
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Abstract
The invention discloses a locally-enhanced fiber-reinforced composite sheet pile. The locally-enhanced fiber-enhanced composite sheet pile is formed in a manner that multiple FRP (fiber reinforce plastic) pile bodies are buckled through the side edge of each FRP pile body and connected by buckling the FRP pile bodies in pairs; each FRP pile body is composed of flanges and a web, symmetrical protrusions are arranged on inside and outside surfaces of the flanges and the web, and the protrusions are solid, hollow or sandwiched inside, so that solid enhancing, hollow enhancing or sandwiched enhancing structures are respectively formed. Therefore, the problems that an existing composite sheet pile is low in rigidity, prone to corrosion and the like are solved; the sheet pile is locally enhanced, so that the rigidity of the FRP sheet pile is greatly improved; the locally-enhanced fiber-reinforced composite sheet pile is applicable to reinforcement and repair engineering and water area transformation of coasts and wharfs and has broad application prospects in infrastructural projects of riverside and coastal areas.
Description
Technical field
The present invention relates to the sheet pile structure in a kind of construction work, be specifically related to a kind of local reinforced fibre reinforced composites (FRP) sheet pile.
Background technology
All the time; China cofferdam adopts mostly is timber sheet piling, steel sheet pile, reinforced concrete sheet pile, prestressed concrete plate stake and masonry structure etc.; its Steel Sheet Pile has the advantages such as easy construction, intensity is high, modulus of elasticity is large with it; be widely used; but in natural environment for use; especially in marine corrosion environment, be easy to corrosion, steel sheet pile is not in the situation that doing anti-corrosion protection, and its service life is very short.Timber sheet piling is due to its material property, and the very corrosion that is easy to be damaged by worms, has been rarely used in sheet pile cofferdam structure, and concrete sheet-piling, due to from great, is unfavorable for transportation and construction, and operability is poor.
Summary of the invention
The object of the invention is the problem for existing composite material sheet pile insufficient rigidity, provide that a kind of weight is lighter, rigidity is larger, bearing capacity is larger, cost is lower, the life-span is long, the reinforced FRP sheet pile in the part of easy construction.
The technical solution used in the present invention is: a kind of local reinforced fiber-reinforced composite material board stake, and this sheet pile, is interlocked and is formed by connecting between two by the snap close of each FRP pile body side by more piece FRP pile body;
Described FRP pile body is comprised of the edge of a wing and web, and the surfaces externally and internally of the described edge of a wing and web is provided with symmetrical projection, and projection inside be solid, hollow or sandwich, forms respectively solid reinforcement, hollow reinforcement or sandwich reinforcement structure.
As preferably, the core of described sandwich is preferably selected carbon fiber plate, can be also flat of timber or steel.
As preferably, described FRP pile body is Z-section FRP pile body or U-shaped cross section FRP pile body.
As preferably, the surfaces externally and internally of the described edge of a wing and web is provided with symmetrical projection, and monolateral projection is 2-3mm, and projection length is not less than 5mm.
As preferably, the surfaces externally and internally of described web is provided with circular protrusions, and circular radius is 2-3mm.
As preferably, size and the projection of described sandwich match.
The present invention is contained in fiber on creel, yarn bundle and the cloth of uncoiling, (or be two-way cloth entirely, do not need yarn bundle) pass through, after a series of guide rollers and boundling screen, yarn collecting wheel, to enter resin-dipping glue groove impregnated with resin simultaneously.Then yarn bundle is by preforming mould, and this mould is the guiding device configuring according to the desired section configuration of goods.
The present invention enters cold mould discharge unnecessary resin and bubble in preformation model after.In cold mould, by water quench, resin viscosity is increased, reduce and run off, finally enter shaping mould, make fiber reinforced material and resin forming and hardening in mould, then pulled out by draw-gear, by cutter sweep, be cut into the goods of Len req.
The present invention is suitable for reinforcing and reinstatement works, the waters transformation of seashore and harbour and by the engineering infrastructure in Haiti district, has more wide application prospect near a river.
Beneficial effect: the invention solves existing glass fiber compound material rigidity little, and the corrosion-prone problem of steel sheet pile is strengthened by the part of sheet pile, and the rigidity of FRP sheet pile is improved greatly.The local flexible design of strengthening of sheet pile, can be designed as solid FRP according to actual operation requirements, also can be designed as hollowly, also can be designed as sandwich.FRP replaces the materials such as steel, has greatly improved the corrosion resistance of sheet pile, and the interface shape of sheet pile is simply various simultaneously, and on-the-spot splicing is rapid and simple, has greatly reduced the engineering time.In the local reinforcing section design of sheet pile, be designed to the rigidity that solid FRP can improve FRP sheet pile, be designed to hollowly can alleviate to a great extent its weight improving in rigidity, reduce cost simultaneously, be designed to sandwich, preferentially select the carbon fiber plate of high strength and modulus, can greatly improve FRP sheet pile rigidity, and do not increase deadweight.If because the restriction of economic condition also can adopt flat of timber or steel as core.Core can synchronously pass through mould with fibre or cloth in pultrusion molding process, and one-body molded, it is convenient to produce, and interface bonding is reliable.
Accompanying drawing explanation
Fig. 1 is part, Z-type cross section reinforced (solid) FRP sheet pile schematic diagram.
Fig. 2 is part, Z-type cross section reinforced (hollow) FRP sheet pile schematic diagram.
Fig. 3 is part, Z-type cross section reinforced (sandwich) FRP sheet pile schematic diagram.
Fig. 4 is the local reinforced FRP sheet pile connection diagram in Z-type cross section.
Fig. 5 is that the local reinforced FRP sheet pile in Z-type cross section connects stereogram.
Fig. 6 is part, U-shaped cross section reinforced (solid) FRP sheet pile schematic diagram.
Fig. 7 is part, U-shaped cross section reinforced (hollow) FRP sheet pile schematic diagram.
Fig. 8 is part, U-shaped cross section reinforced (sandwich) FRP sheet pile schematic diagram.
Fig. 9 is the local reinforced FRP sheet pile connection diagram in U-shaped cross section.
Figure 10 is that the local reinforced FRP sheet pile in U-shaped cross section connects stereogram.
The specific embodiment
Below in conjunction with the specific embodiment and accompanying drawing, the present invention will be further described:
Embodiment 1
As shown in Figure 1, a kind of local reinforced fiber-reinforced composite material board stake, this sheet pile, is interlocked and is formed by connecting between two by the snap close 2 of each FRP pile body side by more piece FRP pile body 1; Described FRP pile body 1 is Z-section FRP pile body;
Described FRP pile body 1 is comprised of the web between two edges of a wing and the edge of a wing, and the surfaces externally and internally on the described edge of a wing is provided with symmetrical projection, and monolateral projection is 2mm, and projection length is 5mm, and projection inside is solid, forms the solid reinforcement 4 in the edge of a wing.The surfaces externally and internally of described web is provided with circular protrusions, and circular radius is 2mm, and projection inside is solid, forms the solid reinforcement 3 of web.
Embodiment 2
As shown in Figure 2, a kind of local reinforced fiber-reinforced composite material board stake, this sheet pile, is interlocked and is formed by connecting between two by the snap close 2 of each FRP pile body side by more piece FRP pile body 1; Described FRP pile body 1 is Z-section FRP pile body;
Described FRP pile body 1 is comprised of the web between two edges of a wing and the edge of a wing, and the surfaces externally and internally on the described edge of a wing is provided with symmetrical projection, and monolateral projection is 2.2mm, and projection length is 5.2mm, and projection inside is hollow, forms the hollow reinforcement 5 in the edge of a wing.The surfaces externally and internally of described web is provided with circular protrusions, and circular radius is 2.2mm, and projection inside is solid, forms the solid reinforcement 3 of web.
Embodiment 3
As shown in Figure 3, a kind of local reinforced fiber-reinforced composite material board stake, this sheet pile, is interlocked and is formed by connecting between two by the snap close 2 of each FRP pile body side by more piece FRP pile body 1; Described FRP pile body 1 is Z-section FRP pile body;
Described FRP pile body 1 is comprised of the web between two edges of a wing and the edge of a wing, the surfaces externally and internally on the described edge of a wing is provided with symmetrical projection, monolateral projection is 2.4mm, projection length is 5.4mm, projection inside is core, form edge of a wing sandwich and strengthen 7, core is selected carbon fiber plate, and size and the projection of core match.The surfaces externally and internally of described web is provided with circular protrusions, and circular radius is 2.4mm, and projection inside is core, forms web sandwich and strengthens 6, and core is selected carbon fiber plate, and size and the projection of core match.
As shown in Figure 4 and Figure 5, be respectively the local reinforced FRP sheet pile connection diagram in Z-type cross section and stereogram.
Embodiment 4
As shown in Figure 6, a kind of local reinforced fiber-reinforced composite material board stake, this sheet pile, is interlocked and is formed by connecting between two by the snap close 9 of each FRP pile body side by more piece FRP pile body 8; Described FRP pile body 8 is U-shaped cross section FRP pile body;
Described FRP pile body 8 is comprised of the edge of a wing and web, the surfaces externally and internally on the described edge of a wing is provided with symmetrical projection, monolateral projection is 2.6mm, and projection length is 5.6mm, and projection inside is solid, form the solid reinforcement 11 in the edge of a wing, the surfaces externally and internally of web is provided with symmetrical projection, and monolateral projection is 2.6mm, and projection length is 5.6mm, projection inside is solid, forms the solid reinforcement 10 of web.
Embodiment 5
As shown in Figure 7, a kind of local reinforced fiber-reinforced composite material board stake, this sheet pile, is interlocked and is formed by connecting between two by the snap close 9 of each FRP pile body side by more piece FRP pile body 8; Described FRP pile body 8 is U-shaped cross section FRP pile body;
Described FRP pile body 8 is comprised of the edge of a wing and web, the surfaces externally and internally on the described edge of a wing is provided with symmetrical projection, monolateral projection is 2.8mm, and projection length is 5.8mm, and projection inside is hollow, form the hollow reinforcement 13 in the edge of a wing, the surfaces externally and internally of web is provided with symmetrical projection, and monolateral projection is 2.8mm, and projection length is 5.8mm, projection inside is hollow, forms the hollow reinforcement 12 of web.
As shown in Figure 8, a kind of local reinforced fiber-reinforced composite material board stake, this sheet pile, is interlocked and is formed by connecting between two by the snap close 9 of each FRP pile body side by more piece FRP pile body 8; Described FRP pile body 8 is U-shaped cross section FRP pile body;
Described FRP pile body 8 is comprised of the edge of a wing and web, and the surfaces externally and internally on the described edge of a wing is provided with symmetrical projection, and monolateral projection is 3mm, projection length is 6mm, and projection inside is core, forms edge of a wing sandwich and strengthens 15, core is selected timber, and size and the projection of core match.The surfaces externally and internally of web is provided with symmetrical projection, and monolateral projection is 3mm, and projection length is 6mm, and projection inside is steel sandwich, forms web sandwich and strengthens 14, and core is selected timber, and size and the projection of core match.
As shown in Figures 9 and 10, be respectively the local reinforced FRP sheet pile connection diagram in U-shaped cross section and stereogram.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. the reinforced fiber-reinforced composite material board stake in part, is characterized in that: this sheet pile, is interlocked and is formed by connecting between two by the snap close of each FRP pile body side by more piece FRP pile body;
Described FRP pile body is comprised of the edge of a wing and web, and the surfaces externally and internally of the described edge of a wing and web is provided with symmetrical projection, and projection inside be solid, hollow or sandwich, forms respectively solid reinforcement, hollow reinforcement or sandwich reinforcement structure.
2. the local reinforced fiber-reinforced composite material board stake of one according to claim 1, is characterized in that: the core of described sandwich is selected flat of carbon fiber plate, timber or steel.
3. the local reinforced fiber-reinforced composite material board stake of one according to claim 1, is characterized in that: described FRP pile body is Z-section FRP pile body or U-shaped cross section FRP pile body.
4. the local reinforced fiber-reinforced composite material board stake of one according to claim 1, is characterized in that: the surfaces externally and internally of the described edge of a wing and web is provided with symmetrical projection, monolateral projection is 2-3mm, and projection length is not less than 5mm.
5. the local reinforced fiber-reinforced composite material board stake of one according to claim 4, is characterized in that: the surfaces externally and internally of described web is provided with circular protrusions, circular radius is 2-3mm.
6. the local reinforced fiber-reinforced composite material board stake of one according to claim 4, is characterized in that: size and the projection of described sandwich match.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410010155.3A CN103758114A (en) | 2014-01-09 | 2014-01-09 | Locally-enhanced fiber-reinforced composite sheet pile |
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| CN201410010155.3A CN103758114A (en) | 2014-01-09 | 2014-01-09 | Locally-enhanced fiber-reinforced composite sheet pile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804055A (en) * | 2016-05-05 | 2016-07-27 | 上海大禺预制构件有限公司 | Piling-facilitating sheet pile shaped like Chinese character 'ji' |
| CN106759257A (en) * | 2016-12-06 | 2017-05-31 | 福建省大地管桩有限公司 | A kind of method that concrete prefabricated board pile crown end plate face thickeies |
| US10626571B2 (en) | 2015-04-27 | 2020-04-21 | Pph S. I A. Pietrucha Andrzej Pietrucha | Geotechnical profiles and a method of manufacture of geotechnical profiles |
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| US20040013901A1 (en) * | 2002-05-31 | 2004-01-22 | Irvine John E. | Seawall panel with inner layer |
| CN102071676A (en) * | 2010-12-24 | 2011-05-25 | 南京工业大学 | Composite material sheet pile and preparation method thereof |
| CN203213125U (en) * | 2013-05-02 | 2013-09-25 | 上海万邦建筑服务有限公司 | Shape steel plate continuous wall |
| CN103485330A (en) * | 2013-10-17 | 2014-01-01 | 江苏省交通规划设计院股份有限公司 | Composite sheet pile |
| CN203701073U (en) * | 2014-01-09 | 2014-07-09 | 南京工业大学 | Local reinforcement type fiber-reinforced composite material sheet pile |
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2014
- 2014-01-09 CN CN201410010155.3A patent/CN103758114A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013901A1 (en) * | 2002-05-31 | 2004-01-22 | Irvine John E. | Seawall panel with inner layer |
| CN102071676A (en) * | 2010-12-24 | 2011-05-25 | 南京工业大学 | Composite material sheet pile and preparation method thereof |
| CN203213125U (en) * | 2013-05-02 | 2013-09-25 | 上海万邦建筑服务有限公司 | Shape steel plate continuous wall |
| CN103485330A (en) * | 2013-10-17 | 2014-01-01 | 江苏省交通规划设计院股份有限公司 | Composite sheet pile |
| CN203701073U (en) * | 2014-01-09 | 2014-07-09 | 南京工业大学 | Local reinforcement type fiber-reinforced composite material sheet pile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10626571B2 (en) | 2015-04-27 | 2020-04-21 | Pph S. I A. Pietrucha Andrzej Pietrucha | Geotechnical profiles and a method of manufacture of geotechnical profiles |
| CN105804055A (en) * | 2016-05-05 | 2016-07-27 | 上海大禺预制构件有限公司 | Piling-facilitating sheet pile shaped like Chinese character 'ji' |
| CN106759257A (en) * | 2016-12-06 | 2017-05-31 | 福建省大地管桩有限公司 | A kind of method that concrete prefabricated board pile crown end plate face thickeies |
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Application publication date: 20140430 |