CN107642029B - Portable composite material hiking bridge - Google Patents
Portable composite material hiking bridge Download PDFInfo
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- CN107642029B CN107642029B CN201711079256.6A CN201711079256A CN107642029B CN 107642029 B CN107642029 B CN 107642029B CN 201711079256 A CN201711079256 A CN 201711079256A CN 107642029 B CN107642029 B CN 107642029B
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- bridge
- hiking
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- sleeve
- composite material
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- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 48
- 230000000712 assembly Effects 0.000 claims abstract description 15
- 238000000429 assembly Methods 0.000 claims abstract description 15
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 8
- 239000004677 Nylon Substances 0.000 claims description 11
- 229920001778 nylon Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 2
- 239000000805 composite resin Substances 0.000 claims 1
- 239000011159 matrix material Substances 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Abstract
The invention discloses a portable composite material hiking bridge, which comprises two parallel girder components, wherein a plurality of girder components are vertically arranged between the two girder components, and a bridge deck is arranged in a region surrounded by the girder components and the girder components; the main beam assembly comprises a plurality of sleeve beam assemblies which are connected end to end, a bidirectional metal sleeve is arranged between the sleeve beam assemblies, two outer ends of the main beam assembly are provided with unidirectional metal sleeves, and the sleeve beam assemblies are formed by nesting a plurality of pipe fitting units which are coaxial but have sequentially reduced sections layer by layer; the beam assembly comprises a beam, composite material buckles are arranged at the end parts of two sides of the beam, and the composite material buckles and the main beam assembly can be mutually embedded. The invention combines and assembles the light composite materials into the hiking bridge in a mode of buckling every two, has small volume, is convenient to carry, assemble and erect, and meets the requirements of a single person for crossing the obstacles such as ravines and the like in field operation.
Description
Technical Field
The invention belongs to a hiking bridge for field operation, in particular to a portable composite material hiking bridge.
Background
The existing hiking bridges are mostly of metal structures, including a plurality of steel structures and a plurality of aluminum alloy structures. Although the steel has the advantages of high strength, good plasticity and toughness, uniform stress of each item, mature design and calculation theory and the like, the steel bridge has the defects of great self weight, difficult carrying, high labor intensity of erection operation and the like, and is difficult to meet the requirements of light weight, portability, rapid erection and the like under the field operation or hiking conditions. In terms of field operation, hiking and the like, a new hiking bridge is urgently needed to meet the current real-life requirements. The light structure, high reinforcement and rapid assembly and erection are main directions of future development of the hiking bridge, and the design of a new structure, the application of a new material and the adoption of a new technology process are necessary routes for realizing the light structure. The light composite material has the remarkable advantages of high specific strength/specific modulus, good designability, portability, good corrosion resistance and the like, and has been widely applied to civil fixed bridge structures, such as reinforcement of established bridges and construction of newly built structures.
The factors such as dead weight, span, structural form and erection method of the traditional hiking bridge are often mutually influenced and restricted, so that materials, structural form and erection technology are required to be used as a mutually influenced whole in the hiking bridge design. The ladder-shaped structure formed by combining the hollow circular tube main beam and the transverse supporting beam which penetrate through the prestressed cable in the plane has a relatively definite force transmission mechanism, and the force transmission paths of the beams are relatively single, so that the ladder-shaped structure is a structural form with relatively high bearing efficiency. The fiber-reinforced resin matrix composite material has high fiber content, high material utilization rate and excellent unidirectional mechanical property. If the fiber reinforced resin matrix composite material and the ladder-shaped structure of the longitudinal beam are combined, the advantages of the two materials can be fully exerted, and the aim of greatly reducing weight is fulfilled. In addition, the telescopic characteristic of the main beam imitating a fishing rod is designed to achieve the effect of rapidly reducing the volume, thereby meeting the portable requirement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a portable composite material hiking bridge, and aims to overcome the defects of the existing hiking bridge, such as heavy weight, difficult carrying, high labor intensity of erection operation, low erection efficiency and the like. The material, the structural form and the erection technology are used as a mutual influence whole to provide a light, portable and rapid assembled and erected composite material hiking bridge.
In order to solve the technical problems, the invention provides a portable composite material hiking bridge, which comprises two parallel girder components, wherein a plurality of girder components are vertically arranged between the two girder components, and a bridge deck is arranged in an area surrounded by the girder components and the girder components;
the main beam assembly comprises a plurality of sleeve beam assemblies which are connected end to end, the sleeve beam assemblies are connected through bidirectional metal sleeves, the two outer ends of the main beam assembly are provided with unidirectional metal sleeves, and the sleeve beam assemblies are formed by nesting a plurality of pipe fitting units which are coaxial but have sequentially reduced sections layer by layer;
the inside of the main beam component is provided with a pre-stress cable along the extending direction, and two ends of the pre-stress cable are respectively connected with a unidirectional metal sleeve arranged at two outer ends of the main beam component;
the beam assembly comprises a beam, composite material buckles are arranged at the end parts of two sides of the beam, and the composite material buckles and the main beam assembly can be mutually embedded.
The technical scheme of the invention is as follows:
the pipe fitting unit is of a hollow circular pipe-shaped structure.
The two ends of the prestress cable are provided with cable buckles which are used for connecting with the built-in circular rings of the unidirectional metal sleeve.
The composite material buckle is made of a fiber reinforced resin matrix composite material.
The two opposite side edges of the bridge deck are respectively provided with a metal cable buckle and a metal ring, and the metal cable buckle and the metal ring are corresponding and can be mutually embedded.
The bridge deck is formed by wrapping two parallel girder components and forming two sides with metal cable buckles and metal rings.
The bridge deck is of a nylon net structure.
Further, the method comprises the steps of,
the main beam component is formed by splicing four sleeve beam components in pairs through a bidirectional metal sleeve.
The beneficial effects of the invention are as follows:
the invention adopts a ladder-shaped structure configuration of double main beams and a plurality of cross bracing beams, wherein each main beam is formed by nesting two coaxial pipes with a plurality of sections with gradually smaller sections layer by layer. The telescopic main beam combines the characteristics of a fishing rod and a ladder, can exert the performances of variable volume and definite stress characteristics, and simultaneously meets the requirements of light weight, portability and rapid assembly and erection under the field operation condition. The product adopts the internal prestress cable of the internal hollow circular pipe girder to be connected with the girder into a whole through the unidirectional metal joint at the end part of the girder, provides internal prestress for the girder, enhances the bearing capacity of the bridge and reduces the mid-span deflection. The product adopts the buckle type cross beam, the flexible bridge deck formed by buckling the two ends of the nylon net of the upper and lower wrapping main beams and the telescopic main beams, and the form does not need to adopt auxiliary tools, so that the assembly and the molding of the bridge are greatly simplified, and the erection and assembly speed is improved. Except that the two joints and the lock catches are made of metal, each beam unit is made of a light high-strength fiber reinforced resin matrix composite material, the bridge deck system is made of a nylon net, the internal-penetrating prestressed rope is made of a composite material rope, and the self weight of the bridge can be greatly reduced by the aid of the materials.
The invention adopts a modularized design configuration, a full-bridge structure is formed by assembling 4 telescopic sleeve girders into 2 telescopic hollow round pipe girders, the hollow round pipe girders are connected through bidirectional metal sleeves, and a bridge upper structure is assembled by a plurality of cross girders, flexible nylon net bridge decks through buckles and a mode of wrapping the buckles. In addition, the pipe beam units with different sections can be selected to adapt to ravines with different spans, so that the application range of the hiking bridge is enlarged. The product has the advantages of light weight, high modularization degree and convenient connection, and the whole bridge can be assembled, erected and withdrawn by a single person.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a beam assembly;
FIG. 3 is a schematic diagram of the front structure of a nylon mesh deck;
FIG. 4 is a schematic diagram of a nylon mesh deck side structure
FIG. 5 is a schematic view of a one-way metal sleeve structure;
FIG. 6 is a schematic view of a bi-directional metal sleeve structure;
the device comprises a 1-main beam component, a 101-bidirectional metal sleeve, a 102-unidirectional metal sleeve, a 103-sleeve beam component, a 1031-pipe unit, a 2-prestressed cable, a 3-bridge deck, a 301-metal cable buckle, a 302-metal ring, a 4-cross beam component, a 401-cross beam and a 402-composite material buckle.
Detailed Description
Example 1
The embodiment provides a portable composite material hiking bridge, the structure of which is shown in figure 1, the hiking bridge comprises two parallel girder components 1, a plurality of girder components 4 are vertically arranged between the two girder components, and a bridge deck 3 is arranged in an area surrounded by the girder components 4 and the girder components 1; the main beam assembly 1 comprises a plurality of sleeve beam assemblies 103 which are connected end to end, the sleeve beam assemblies 103 are connected through bidirectional metal sleeves 101, two outer ends of the main beam assembly 1 are provided with unidirectional metal sleeves 102, and the sleeve beam assemblies 103 are formed by nesting a plurality of pipe fitting units 1031 which are coaxial but have sequentially reduced sections layer by layer; the inside of the girder component 1 is provided with a pre-stress cable 2 along the extending direction, and two ends of the pre-stress cable 2 are respectively connected with a one-way metal sleeve 102 arranged at two outer ends of the girder component 1; the beam assembly 4 comprises a beam 401, wherein composite material buckles 402 are arranged at two side ends of the beam 401, and the composite material buckles 402 and the main beam assembly 1 can be mutually embedded.
The pipe unit 1031 has a hollow circular pipe structure. The two ends of the prestress cable 2 are provided with cable buckles, and the cable buckles are used for connecting with the built-in circular rings of the unidirectional metal sleeve 102. The composite clip 402 is made of a fiber reinforced resin matrix composite. The two opposite side edges of the bridge deck 3 are respectively provided with a metal cable buckle 301 and a metal ring 302, and the metal cable buckle 301 and the metal ring 302 are corresponding and can be mutually embedded. The bridge deck 3 is formed by wrapping two parallel main beam assemblies 1 and forming two side metal cable buckles 301 and metal rings 302. The bridge deck 3 is a nylon net structure. The main beam assembly 1 is formed by splicing four sleeve beam assemblies 103 in pairs through a bidirectional metal sleeve 101
The embodiment adopts a ladder-shaped structure configuration of double main beams and a plurality of cross bracing beams, wherein each main beam is formed by nesting two coaxial pipes with a plurality of sections with gradually smaller sections layer by layer. The telescopic main beam combines the characteristics of a fishing rod and a ladder, can exert the performances of variable volume and definite stress characteristics, and simultaneously meets the requirements of light weight, portability and rapid assembly and erection under the field operation condition. Meanwhile, the product adopts the internal prestress cable of the internal penetrating hollow circular pipe girder to be connected with the girder into a whole through the unidirectional metal joint at the end part of the girder, thereby providing internal prestress for the girder, enhancing the bearing capacity of the bridge and reducing the mid-span deflection. The product adopts the buckle type cross beam, the flexible bridge deck formed by buckling the two ends of the nylon net of the upper and lower wrapping main beams and the telescopic main beams, and the form does not need to adopt auxiliary tools, so that the assembly and the molding of the bridge are greatly simplified, and the erection and assembly speed is improved. Except that the two joints and the lock catches are made of metal, each beam unit is made of a light high-strength fiber reinforced resin matrix composite material, the bridge deck system is made of a nylon net, the internal-penetrating prestressed rope is made of a composite material rope, and the self weight of the bridge can be greatly reduced by the aid of the materials.
The embodiment adopts a modularized design configuration, the full-bridge structure is formed by assembling 4 telescopic sleeve girders into 2 telescopic hollow round pipe girders, the hollow round pipe girders are connected through bidirectional metal sleeves, and the bridge upper structure is assembled by a plurality of cross girders, flexible nylon net bridge decks through buckles and a mode of wrapping the buckles. In addition, the pipe beam units with different sections can be selected to adapt to ravines with different spans, so that the application range of the hiking bridge is enlarged. The product has the advantages of light weight, high modularization degree and convenient connection, and the whole bridge can be assembled, erected and withdrawn by a single person.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereto, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the present invention.
Claims (6)
1. The portable composite material hiking bridge is characterized by comprising two parallel girder components (1), wherein a plurality of girder components (4) are vertically arranged between the two girder components, and a bridge deck (3) is arranged in an area surrounded by the girder components (4) and the girder components (1);
the main beam assembly (1) comprises a plurality of sleeve beam assemblies (103) which are connected end to end, the sleeve beam assemblies (103) are connected through bidirectional metal sleeves (101), one-way metal sleeves (102) are arranged at two outer ends of the main beam assembly (1), and the sleeve beam assemblies (103) are formed by nesting a plurality of pipe fitting units (1031) which are coaxial but sequentially reduced in section layer by layer;
the inside of the main beam component (1) is provided with a pre-stress cable (2) along the extending direction, and two ends of the pre-stress cable (2) are respectively connected with a one-way metal sleeve (102) arranged at two outer ends of the main beam component (1);
the beam assembly (4) comprises a beam (401), composite material buckles (402) are arranged at two side ends of the beam (401), and the composite material buckles (402) and the main beam assembly (1) can be mutually embedded;
the bridge deck (3) is provided with metal cable buckles (301) and metal rings (302) at the edges of two opposite sides respectively, and the metal cable buckles (301) and the metal rings (302) correspond to each other and can be mutually embedded;
the bridge deck (3) is formed by wrapping two parallel main beam components (1) and forming two sides of a metal cable buckle (301) and a metal ring (302).
2. The portable composite hiking bridge according to claim 1, wherein the tube unit (1031) is a hollow circular tube-like structure.
3. The portable composite hiking bridge according to claim 1, wherein the prestressed cable (2) is provided with cable buckles at both ends, said cable buckles being used for connecting built-in rings of the unidirectional metal sleeve (102).
4. The portable composite hiking bridge according to claim 1, wherein the composite clasp (402) is made of a fibre reinforced resin based composite material.
5. Portable composite hiking bridge according to claim 1, characterized in that the deck (3) is of nylon mesh construction.
6. The portable composite hiking bridge according to claim 1, wherein the main girder assembly (1) is formed by splicing four sleeve girder assemblies (103) by two-by-two metal sleeves (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079256.6A CN107642029B (en) | 2017-11-06 | 2017-11-06 | Portable composite material hiking bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079256.6A CN107642029B (en) | 2017-11-06 | 2017-11-06 | Portable composite material hiking bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107642029A CN107642029A (en) | 2018-01-30 |
| CN107642029B true CN107642029B (en) | 2024-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711079256.6A Active CN107642029B (en) | 2017-11-06 | 2017-11-06 | Portable composite material hiking bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107642029B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1362962A (en) * | 1970-07-01 | 1974-08-14 | T J Brunes | Supporting structures |
| US4628561A (en) * | 1985-05-31 | 1986-12-16 | Universal Ramps Limited | Telescopic ramp |
| JPH0547207U (en) * | 1991-12-06 | 1993-06-22 | 株式会社竹中工務店 | Simple safety passage |
| CN101967793A (en) * | 2010-10-28 | 2011-02-09 | 南京工业大学 | Quick-spliced sectional type composite material truss bridge |
| CN203867447U (en) * | 2014-05-12 | 2014-10-08 | 国家电网公司 | Portable multifunctional insulating extension ladder |
| KR101492078B1 (en) * | 2014-10-28 | 2015-02-10 | 이경표 | Construction method for temporary bridge using prestressed girder |
| JP2015229882A (en) * | 2014-06-05 | 2015-12-21 | 株式会社高知丸高 | Extensible bridge |
| CN205100085U (en) * | 2015-11-02 | 2016-03-23 | 赵启林 | Modularization combined material - metallic combination space truss bridge |
| CN106869009A (en) * | 2017-03-09 | 2017-06-20 | 湖北华舟重工应急装备股份有限公司 | A kind of composite metallic combination long span bridge with lower edge strengthening system |
| CN106948252A (en) * | 2017-03-27 | 2017-07-14 | 陕西科技大学 | The emergent bridge of the telescopic feeding of Timing Belt and its application method |
| CN207597233U (en) * | 2017-11-06 | 2018-07-10 | 中国人民解放军陆军工程大学 | Portable composite material foot bridge |
-
2017
- 2017-11-06 CN CN201711079256.6A patent/CN107642029B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1362962A (en) * | 1970-07-01 | 1974-08-14 | T J Brunes | Supporting structures |
| US4628561A (en) * | 1985-05-31 | 1986-12-16 | Universal Ramps Limited | Telescopic ramp |
| JPH0547207U (en) * | 1991-12-06 | 1993-06-22 | 株式会社竹中工務店 | Simple safety passage |
| CN101967793A (en) * | 2010-10-28 | 2011-02-09 | 南京工业大学 | Quick-spliced sectional type composite material truss bridge |
| CN203867447U (en) * | 2014-05-12 | 2014-10-08 | 国家电网公司 | Portable multifunctional insulating extension ladder |
| JP2015229882A (en) * | 2014-06-05 | 2015-12-21 | 株式会社高知丸高 | Extensible bridge |
| KR101492078B1 (en) * | 2014-10-28 | 2015-02-10 | 이경표 | Construction method for temporary bridge using prestressed girder |
| CN205100085U (en) * | 2015-11-02 | 2016-03-23 | 赵启林 | Modularization combined material - metallic combination space truss bridge |
| CN106869009A (en) * | 2017-03-09 | 2017-06-20 | 湖北华舟重工应急装备股份有限公司 | A kind of composite metallic combination long span bridge with lower edge strengthening system |
| CN106948252A (en) * | 2017-03-27 | 2017-07-14 | 陕西科技大学 | The emergent bridge of the telescopic feeding of Timing Belt and its application method |
| CN207597233U (en) * | 2017-11-06 | 2018-07-10 | 中国人民解放军陆军工程大学 | Portable composite material foot bridge |
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| Publication number | Publication date |
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| CN107642029A (en) | 2018-01-30 |
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