CN204756411U - Truss - Google Patents

Abstract

The utility model discloses a truss, a serial communication port, including an at least girder and an at least curb girder, at least one end and one of them girder of curb girder are connected. The utility model provides a truss comprises girder and curb girder. Wherein, girder make full use of metal material's ductility and material homogeneity, combined material's performances such as designability and fatigue performance, make the girder not only can bear instantaneous impact and long -time high -frequency vibration, still have good high temperature resistance can and tensile strength.

Description

Truss

Technical field

The utility model relates to a kind of truss.

Background technique

Ocean engineering, bridge works or other have the field of rigors to structure weight, certain weight indicator requirement is not only had to structure, also has higher technical requirement, as rigidity, intensity, tensile strength, compressive strength, anti-temporary impact intensity etc.If structure member is obtained by all-metal material, make the technical requirement that structure reaches certain, this structure is not only bulky, and weight is very large.For truss, if full-metallic truss, want to make it have higher technical order, namely the size increasing truss is needed, thus add the weight of truss self and shared space thereof, this not only can arrange the space of miscellaneous part in structure and cause difficulty, also can make the weight load that whole product back is heavy, reduce the bearing capacity of other objects of structural bearing.On the other hand, the corrosion-resistant of the truss that all-metal material obtains, poor to the defensive ability/resistance ability of rugged environment.

Model utility content

The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of truss.

For realizing above object, the utility model is achieved through the following technical solutions:

Truss, is characterized in that, comprises at least one girder and at least one curb girder; At least one end of described curb girder is connected with a wherein girder.

Preferably, described girder comprises at least one first composite material rod member; Described first composite material rod member comprises metal cartridge; Described metal cartridge outer surface is coated with the first fiber-reinforced plastic layer; Described metal cartridge outer surface is provided with insulation coating; Described insulation coating is arranged between described metal cartridge outer surface and described first fiber-reinforced plastic layer.

Preferably, described first fiber-reinforced plastic layer is formed for one or more the first fiber reinforcement plastic stockline or the first fiber reinforcement plastic material strip are wound in described metal cartridge outer surface; Described many first fiber reinforcement plastic stocklines or the first fiber reinforcement plastic material strip are wound in described metal cartridge outer surface successively.

Preferably, described first fiber-reinforced plastic layer outer surface is also provided with the second fiber-reinforced plastic layer; Described second fiber-reinforced plastic layer is that the second fiber reinforcement plastic stockline or the second fiber reinforcement plastic material strip are wound in described first fiber-reinforced plastic layer outer surface formation successively.

Preferably, described first fiber-reinforced plastic layer is cfrp layer; Described second fiber-reinforced plastic layer is glass fiber reinforced plastic layer or whisker reinforced plastic layer.

Preferably, described metal cartridge is provided with the first through hole extended vertically.

Preferably, described insulation coating is resinous coat.

Preferably, described metal cartridge outer surface is waveform.

Preferably, the end of described first composite material rod member is provided with flange; Described first composite material rod member is connected with the first composite material rod member described in another by described flange.

Preferably, the outer surface of described flange is waveform; Described first fiber-reinforced plastic layer covers the outer surface of described flange undulate, with the outer surface mechanical snap of described flange undulate.

Preferably, the two ends of described first composite material rod member are equipped with described flange; The outer surface of described flange is provided with multiple the first projection along the circumferential direction distributed; First fiber reinforcement plastic stockline or the first fiber reinforcement plastic material strip are axially wound around and the first projection walked around successively in described metal cartridge two end flange along described metal cartridge, the flange at described metal cartridge two ends is connected with described metal cartridge, and forms described first fiber-reinforced plastic layer.

Preferably, described curb girder comprises support; The two ends of described support are respectively equipped with at least one first auricle; The outer surface of described support is coated with the 3rd fibrous reinforcing material.

Preferably, the two ends of described support are respectively equipped with auricle described in one or two; Be positioned at two the described auricle intervals settings of described support with one end.

Preferably, described first auricle is resisted against on described support; 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band form described 3rd fibrous reinforcing material along being heating and curing after the axis of described support is wound around described support and described first auricle, and are connected with described support by described first auricle.

Preferably, the outer surface of described 3rd fibrous reinforcing material is also coated with the 4th fibrous reinforcing material; 4th fibre reinforced materials line or the 4th fibre reinforced materials band are along the circumferencial direction of described support and described 4th fibrous reinforcing material of formation that is heating and curing after being axially wound around described 3rd fibrous reinforcing material.

Preferably, described first auricle is resisted against on described support; Described first auricle along the circumferencial direction of described support and described 3rd fibrous reinforcing material of formation that is heating and curing after being axially wound around described support and described first auricle, and is connected with described support by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band.

Preferably, the outer surface of described 3rd fibrous reinforcing material is also coated with the 4th fibrous reinforcing material; Described 4th fibrous reinforcing material is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after described 3rd fibrous reinforcing material of axis winding of described support.

Preferably, described first auricle is provided with the first groove; When described 3rd fibre reinforced materials line or described 3rd fibre reinforced materials band are wound around described first auricle vertically, be placed in described first groove; Or when described 4th fibre reinforced materials line or described 4th fibre reinforced materials band are wound around described first auricle vertically, be placed in described first groove.

Preferably, described first auricle is provided with multiple the second projection along the circumferential direction distributed; Described 3rd fibre reinforced materials line or described 3rd fibre reinforced materials band are wound around vertically and walk around the second projection on the auricle of described support two ends first successively, are connected by first auricle at described support two ends with described support; Or described 4th fibre reinforced materials line or described 4th fibre reinforced materials band are wound around vertically and walk around the second projection on the auricle of described support two ends first successively, are connected by first auricle at described support two ends with described support.

Preferably, the outer surface of described first auricle is waveform; When described 3rd fibre reinforced materials line or described 3rd fibre reinforced materials band are wound around described first auricle, with the outer surface mechanical snap of undulate on described first auricle.

Preferably, described curb girder also comprises the first link; Described first link comprises the first projection and the first slot that match; Described first projection is arranged on described first auricle and described support on one of them, and described first slot is arranged on another in described first auricle and described support; Described first projection is inserted in described first slot pluggablely, described first auricle is arranged on the end of described support.

Preferably, described curb girder also comprises connecting rod; The two ends of described connecting rod are respectively equipped with described first auricle; Described support is provided with the groove extended vertically; Described groove and described connecting rod adapt; Described connecting rod embeds in described groove, makes described first auricle stretch out the end that described groove is arranged at described support.

Preferably, the number of described connecting rod is two; Described support is provided with two described grooves; Each described connecting rod embeds in a described groove; Be arranged at two the auricle intervals settings of described support with one end.

Preferably, described first auricle and described connecting rod are wholely set; Described first auricle and described connecting rod are obtained by metallic material, or it is obtained to be heating and curing after being wound around by the 5th fibre reinforced materials, or adopt resin transfer molding technique to be formed.

Preferably, described connecting rod along the circumferencial direction of described support and described 3rd fibrous reinforcing material of formation that is heating and curing after being axially wound around described support, described connecting rod and described auricle, and is connected with described support by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band.

Preferably, the outer surface of described 3rd fibrous reinforcing material is also coated with the 4th fibrous reinforcing material; Described 4th fibrous reinforcing material is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after described 3rd fibrous reinforcing material of axis winding of described support.

Preferably, described 3rd fibrous reinforcing material is the 3rd fiber-reinforced resin layer; Described 4th fibrous reinforcing material is the 4th fiber-reinforced resin layer; Described 5th fibrous reinforcing material is the 5th fiber-reinforced resin layer; Described 3rd fiber-reinforced resin layer comprises the 3rd fiber and the 3rd resin; Described 4th fiber-reinforced resin layer comprises the 4th fiber and the 4th resin; Described 5th fiber-reinforced resin layer comprises the 5th fiber and the 5th resin; Described 3rd fiber, described 4th fiber or not phase identical with described 5th fiber; Described 3rd fiber, described 4th fiber or described 5th fiber are selected from the one or several arbitrarily in glass fibre, carbon fiber, steel fiber, boron fiber, asbestos fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp; Described 3rd resin, described 4th resin or described 5th resin are identical or different; Described 3rd resin, described 4th resin or described 5th resin are selected from the one or several arbitrarily in epoxy resin, phenolic resin, vinylite, benzoxazine colophony, polyimide resin, bimaleimide resin.

Preferably, auricle both can be obtained by metallic material, also can be obtained by composite material.Composite material can select metal-base composites, ceramic matric composite or polymer-based composite.Described first auricle is provided with the second through hole.When auricle adopts composite material to obtain, in described second through hole, the first lining can be set.First lining can avoid auricle to wear and tear, and extends auricle working life.After first liner wear, comparatively auricle is changed conveniently.

Preferably, described support is obtained by fluffy lightweight materials such as foamed materials.

Preferably, described girder is provided with the second auricle adapted with described first auricle; Bolt or screw run through described first auricle and described second auricle successively, are arranged on described girder by described curb girder.

Preferably, also comprise sleeve, the outer surface of described sleeve is provided with the second auricle described at least one; Described jacket casing is located on the outer surface of described girder; Described girder is provided with the first through hole extended vertically; The second lining is provided with in described first through hole; Bolt or screw run through described sleeve, the hole wall of described girder and described second lining successively, are locked on described girder by described sleeve.

Preferably, described sleeve comprises at least two arc plates; The both sides of described arc plate are provided with the flange extended radially outward; Bolt or screw run through the flange on two adjacent arc plates successively, are connected by adjacent two arc plates.

Preferably, described girder is cuboid; Described second auricle is arranged on a flat board; Bolt or screw run through described flat board and described girder successively, are arranged on described girder by described second auricle.

Truss in the utility model is made up of girder and curb girder.Wherein, girder takes full advantage of the performance such as designability and fatigability of the ductility of metallic material and material homogeneity, composite material, make girder can not only bear temporary impact and long dither, also there is good resistance to high temperature and tensile strength.The utility model arranges insulation coating at metal cartridge outer surface, can prevent the galvanic corrosion problem between metal cartridge and the first fiber-reinforced plastic layer.When first fiber-reinforced plastic layer is cfrp layer, its impact resistance is poor, is subject to the impact of external environment, therefore arranges glass fiber reinforced plastic layer again at the outer surface of cfrp layer, can strengthen the impact resistance of girder.

The curb girder of the truss in the utility model, takes full advantage of the performances such as the designability of composite material and fatigability, makes it have excellent stretch-proof performance, compression resistance.Wrap up auricle and support by fibre reinforced materials along the axis winding of support, improve the adhesive strength of auricle and support, the more important thing is, make curb girder have excellent stretch-proof performance, tensional strain reaches as high as more than 3.5%.Wrap up auricle and support by fibre reinforced materials along the circumferencial direction of support and axial winding, make curb girder have excellent compression resistance.

Compared with full-metallic truss, when reaching identical every mechanical index, truss in the utility model has the safety coefficient of obvious weight advantage and Geng Gao, no matter be the girder in the utility model or curb girder, and all can comparatively full-metallic rod member weight reduction 30%.Compared with full-metallic rod member, when the length that is equal in weight is identical, the mechanical index of girder of the present utility model and curb girder all promotes 20% ~ 40%.This also means that the utility model has the field of rigors to have bright application prospect by ocean engineering, bridge works etc. to structure weight.

When reaching the identical mechanical index such as stretch-proof performance, compression resistance, shock resistance, the weight of truss of the present utility model is only 70% of full-metallic truss weight.That is, adopt truss of the present utility model to replace full-metallic truss, the workload needed for carrying can be alleviated, improve working efficiency, reduce and produce required cost.Consider from another point of view, because when reaching the identical mechanical index such as stretch-proof performance, compression resistance, shock resistance, the weight of truss of the present utility model is only 70% of full-metallic truss weight, so the girder of each Liftable of hanging device or the length of curb girder or quantity are greater than full-metallic rod member, thus reduce lifting number of times, alleviate lifting workload, improve working efficiency, reduce and produce required cost.

Girder and curb girder are cooperated together by the first auricle and the second auricle, are convenient to installation and removal.

Accompanying drawing explanation

Fig. 1 is the structural representation of the truss in embodiment 1;

Fig. 2 is the axial cross section schematic diagram of the girder in embodiment 1;

Fig. 3 is the structural representation of the curb girder in embodiment 1;

Fig. 4 is the structural blast figure of the curb girder in embodiment 1;

Fig. 5 is the structural representation after being hidden by the girder in Fig. 1;

Fig. 6 is the structural representation of the truss in embodiment 2;

Another angle schematic diagram that Fig. 7 is structure shown in Fig. 6;

Fig. 8 is the structural representation of the truss in embodiment 3;

Fig. 9 is the axial cross section schematic diagram of girder in embodiment 3 and flange;

Figure 10 is the structural representation of girder in embodiment 4 and flange;

Figure 11 is the structural representation of the curb girder in embodiment 5;

Figure 12 is the structural representation of the curb girder in embodiment 6;

Figure 13 is the radial cross section schematic diagram of the curb girder in embodiment 6;

Figure 14 is the partial structurtes exploded perspective view of the curb girder in embodiment 8;

Figure 15 is the radial cross section schematic diagram of the curb girder in embodiment 8;

Figure 16 is the structural representation of the curb girder in embodiment 9;

Figure 17 is the partial structurtes schematic diagram of the curb girder in embodiment 9;

Figure 18 is the radial cross section schematic diagram of the curb girder in embodiment 9;

Figure 19 is the axial cross section schematic diagram of composite material rod member in embodiment 10;

Figure 20 is the structural representation of the curb girder in embodiment 11;

Figure 21 is the partial structurtes exploded perspective view of the curb girder in embodiment 11;

Figure 22 is the radial cross section schematic diagram of the curb girder in embodiment 11;

Figure 23 is radial cross section schematic diagram after composite material rod member outer cladding the 4th fibrous reinforcing material shown in Figure 22.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail:

Embodiment 1

As shown in Figure 1, truss comprises a girder 1 and a curb girder 2.One end of curb girder 2 is connected with girder 1.

As shown in Figure 2, girder 1 comprises a first composite material rod member.First composite material rod member comprises metal cylinder 11.Metal cylinder 11 can adopt various metallic material, as metals such as steel, iron, alloys.Metal cylinder 11 is provided with the first through hole 111.The outer surface 112 of metal cylinder 11 is waveform.Wavy shape extends along the axis of metal cylinder 11.Metal cylinder 11 outer surface is coated with insulating resin layer (not shown).Insulating resin layer Surface coating has the first fiber-reinforced plastic layer 12.Metal cylinder 11 and the first fiber-reinforced plastic layer 12 can insulate and separate by insulating resin layer.First fiber-reinforced plastic layer 12 is one or more reinforced plastic in carbon fiber, steel fiber, carbon fiber, boron fiber, asbestos fiber, steel fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp.First fiber-reinforced plastic layer 12 is that the outer surface that the first fiber reinforcement plastic stockline or the first fiber reinforcement plastic material strip are wound in metal cylinder 11 is formed, and many first fiber reinforcement plastic stocklines or the first fiber reinforcement plastic material strip are wound in the outer surface of metal cartridge 1 successively.First fiber-reinforced plastic layer 12 outer surface is also provided with the second fiber-reinforced plastic layer 13.Second fiber-reinforced plastic layer 13 is glass fiber reinforced plastic layer or whisker reinforced plastic layer.Described second fiber-reinforced plastic layer 13 is that the outer surface that the second fiber reinforcement plastic stockline or the second fiber reinforcement plastic material strip are wound in described first fiber-reinforced plastic layer 12 is successively formed.In example as shown in Figure 2, the first fiber-reinforced plastic layer 12 is cfrp layer, and the second fiber-reinforced plastic layer 13 is glass fiber reinforced plastic layer.First fiber-reinforced plastic layer 12 and the second fiber-reinforced plastic layer 13 all adapt to the waveform of metal cylinder 11 outer surface 112.

As shown in Figures 3 and 4, curb girder 2 comprises support 21.In preferred exemplary as shown in the figure, support 21, in strip, is obtained by foamed material.The two ends of support 21 are respectively equipped with first auricle 22.First auricle 22 both can be obtained by metallic material, also can be obtained by composite material.Composite material can select metal-base composites, ceramic matric composite and polymer-based composite etc.The present embodiment is preferred, and the first auricle 22 is made for metallic material.First auricle 22 in the form of sheets, is provided with the second through hole 221.

Curb girder 2 also comprises the first link.First link comprises the first projection 231 and the first slot 232 matched.First projection 231 is arranged on the first auricle 22 and support 21 on one of them, and the first slot 232 is arranged on another in the first auricle 22 and support 21.The present embodiment is preferred, and the first projection 231 is arranged on the first auricle 22, and the first slot 232 is arranged on the end of support platform 21.First projection 231 is inserted in the first slot 232 pluggablely, the first auricle 22 is arranged on the end of support 21.

The outer surface of support 21 is coated with the 3rd fibrous reinforcing material 24.3rd fibrous reinforcing material 24 is heating and curing by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band and is formed after the axis winding support 21 and the first auricle 22 of support 21.3rd fibrous reinforcing material 24 is the 3rd fiber-reinforced resin layer.3rd fiber-reinforced resin layer comprises the 3rd fiber and the 3rd resin.3rd fiber is selected from the one or several arbitrarily in glass fibre, carbon fiber, steel fiber, boron fiber, asbestos fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp.3rd resin is selected from the one or several arbitrarily in epoxy resin, phenolic resin, vinylite, benzoxazine colophony, polyimide resin, bimaleimide resin.

First auricle 22 is also provided with the first groove 223, first groove 223 and first auricle 22 is divided into two monolithics 220.Each monolithic 220 is equipped with second through hole 221.When 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band are wound around the first auricle 22 vertically, be placed in the first groove 223, the 3rd fibre reinforced materials or the 3rd fiber-reinforced tape is limited by the first groove 223, guarantee that the 3rd fiber reinforcement line or the 3rd fiber-reinforced tape are firmly wrapped on the first auricle 22 and support 21, avoid the 3rd fiber reinforcement line or the 3rd fiber-reinforced tape from landing the first auricle 22 or support 21.

As shown in Figure 5, the outer surface of girder 1 is arranged with sleeve 3.The outer surface of sleeve 3 is provided with the second auricle 31.Second auricle 31 is provided with the second groove 32.Second auricle 22 is divided into two monolithics 30 by the second groove 32.Each monolithic 30 is equipped with a third through-hole 33.First auricle 22 of curb girder 2 one end inserts in the second groove 32, adopts bolt to run through third through-hole 33, second through hole 221 and third through-hole 33 successively, is arranged on girder 1 by curb girder 2.

Sleeve 3 is spliced by two arc plates 34.The both sides of arc plate 34 are provided with the flange 35 extended radially outward.Two arc plates 34 are connected, make it be set on girder 1 by the flange 35 on two arc plates 34 adopting bolt to run through adjacent successively.In first through hole 111 of girder 1, the region corresponding with sleeve 3 position is provided with the second lining 4.Adopt screw to run through arc plate 34, the hole wall of girder 1 and the second lining 4 successively, arc plate 34 is locked on girder 1, improve curb girder 2 and be arranged on stability on girder 1.

The girder 1 of the present embodiment, take full advantage of the performance such as designability and fatigability of the ductility of metallic material and material homogeneity, composite material, make it can not only bear temporary impact and long dither, also there is good resistance to high temperature and tensile strength.Insulation coating is set at metal cylinder 11 outer surface, the galvanic corrosion problem between metal cartridge and the first fiber-reinforced plastic layer 12 can be prevented.When first fiber-reinforced plastic layer 12 is cfrp layer, its impact resistance is poor, is subject to the impact of external environment, therefore arranges glass fiber reinforced plastic layer again at the outer surface of cfrp layer, can strengthen the impact resistance of girder 1.

The curb girder 2 of the present embodiment, is wound around the first auricle 22 and support 21 by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, the first auricle 22 and support 21 is bundled together, improve the combination force between the first auricle 22 and support 21.The more important thing is, the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band are wound around along the axis of support 21, and curb girder 2 is improved greatly compared with the stretch-proof performance of full-metallic rod member.

Compared with full-metallic truss, when reaching identical every mechanical index, the truss of the present embodiment has the safety coefficient of obvious weight advantage, volume advantage and Geng Gao, no matter be girder 1 or curb girder 2, all can alleviate the weight of 30% compared with full-metallic rod member.Compared with full-metallic rod member, when the length that is equal in weight is identical, the stretch-proof performance of the girder of the present embodiment, compression resistance and shock resistance all promote 20% ~ 40%, the stretch-proof performance boost 20% ~ 40% of the curb girder of the present embodiment.The truss of the present embodiment is made to have the field of rigors to have bright application prospect at ocean engineering, bridge works etc. to structure weight

First auricle 22 can not arrange the first groove 223, does not affect installation and the mechanical property thereof of multiple curb girder.

Embodiment 2

Different from embodiment 1, as shown in Figures 6 and 7, the truss in the present embodiment comprises a girder 1 and two curb girders 2.Girder 1 is in cuboid.Two curb girders 2 are connected with girder 1 respectively by second auricle 31.Each second auricle 31 is arranged on a flat board 5.Two flat boards 5 are positioned at the both sides of girder 1, and are resisted against on the outer surface of girder 1.Adopt bolt from the side of girder 1, run through one of them flat board 5, girder 1 and another flat board 5 successively, the flat board 5 being provided with the second auricle 31 is arranged on girder 1.

Embodiment 3

On the basis of embodiment 1, as shown in Figure 8, the quantity of the girder 1 included by the truss of the present embodiment and curb girder 2 increases.Every root girder 1 comprises two the first composite material rod members 10.The two ends of each first composite material rod member 10 are respectively equipped with a flange 6.First composite material rod member 10 is connected with another the first composite material rod member 10 by the flange 6 of its end, composition girder 1.

As shown in Figure 9, the outer surface 61 of flange 6 is waveform.First fiber-reinforced plastic layer 12 covers the outer surface 61 of flange 6 undulate, with outer surface 61 mechanical snap of flange 6 undulate, thus is connected with the first composite bar by flange 6, and transmits the load between interface by mechanical snap.

Embodiment 4

Different from embodiment 3, as shown in Figure 10, the outer surface 61 of the flange 6 in the present embodiment is smooth surface, and is provided with multiple the first projection 62 along the circumferential direction distributed.First fiber reinforcement plastic stockline 01 is wound around and the first projection 62 walked around successively in metal cartridge 11 liang of end flange 6 along the axis of metal cartridge 11, thus is connected with the first composite material rod member by flange 6, and forms the first fiber-reinforced plastic layer 12.

Embodiment 5

As embodiment 1 is different, as shown in figure 11, without the first groove on the first auricle 22 in the present embodiment.And the 3rd fibrous reinforcing material 24 is formed along the circumferencial direction of support 12 and being heating and curing after being axially wound around support 21 and the first auricle 22 by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band.3rd fibrous reinforcing material 24 covers the connection part of the first auricle 22 and support 21.

The curb girder 2 of the present embodiment, is wound around the first auricle 22 and support 21 by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, the first auricle 22 and support 21 is bundled together, improve the combination force between the first auricle 22 and support 21.The more important thing is, the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, along the circumferencial direction of support 21 and axially winding, make curb girder 2 greatly improve compared with the compression resistance of full-metallic rod member.And compared with full-metallic rod member, when reaching identical every mechanical index, the curb girder 2 of the present embodiment has the safety coefficient of obvious weight advantage, volume advantage and Geng Gao, can alleviate the weight of 30%.Compared with full-metallic rod member, when the length that is equal in weight is identical, the stretch-proof performance of the girder of the present embodiment, compression resistance and shock resistance all promote 20% ~ 40%, and the compression resistance of the curb girder of the present embodiment promotes 20% ~ 40%.The truss of the present embodiment is made to have the field of rigors to have bright application prospect at ocean engineering, bridge works etc. to structure weight.

Embodiment 6

On the basis of embodiment 1, as shown in Figures 12 and 13, the outer surface of the 3rd fibrous reinforcing material 24 is also coated with the 4th fibrous reinforcing material 25.4th fibrous reinforcing material 25 is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after the circumferencial direction and axial winding the 3rd fibrous reinforcing material 24 of support.4th fibrous reinforcing material 25 covers the connection part of the first auricle 22 and support 21.

4th fibrous reinforcing material 25 is the 4th fiber-reinforced resin layer.4th fiber-reinforced resin layer comprises the 4th fiber and the 4th resin.4th fiber or not phase identical with the 3rd fiber.4th fiber is selected from the one or several arbitrarily in glass fibre, carbon fiber, steel fiber, boron fiber, asbestos fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp.4th resin and the 3rd resin identical or different.4th resin is selected from the one or several arbitrarily in epoxy resin, phenolic resin, vinylite, benzoxazine colophony, polyimide resin, bimaleimide resin.

The curb girder 2 of the present embodiment, is wound around the first auricle 22 and support 21 by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, the first auricle 22 and support 21 is bundled together, improve the combination force between the first auricle 22 and support 21.The more important thing is, the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band are wound around along the axis of support 21, and curb girder 2 is improved greatly compared with the stretch-proof performance of full-metallic rod member.4th fibre reinforced materials line or the 4th fibre reinforced materials band, along the circumferencial direction of support 21 and axially winding, make curb girder 2 greatly improve compared with the compression resistance of full-metallic rod member.And compared with full-metallic rod member, when reaching identical every mechanical index, the curb girder 2 of the present embodiment has the safety coefficient of obvious weight advantage, volume advantage and Geng Gao, can alleviate the weight of 30%.Compared with full-metallic rod member, when the length that is equal in weight is identical, the stretch-proof performance of the girder of the present embodiment, compression resistance and shock resistance all promote 20% ~ 40%, and stretch-proof performance and the compression resistance of the curb girder of the present embodiment all promote 20% ~ 40%.The truss of the present embodiment is made to have the field of rigors to have bright application prospect at ocean engineering, bridge works etc. to structure weight.

Embodiment 7

Different from embodiment 6, the 3rd fibrous reinforcing material 24 in the present embodiment is formed along the circumferencial direction of support 21 and being heating and curing after being axially wound around support 21 and the first auricle 22 by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band.3rd fibrous reinforcing material 24 covers the connection part of the first auricle 22 and support 21.The 4th fibrous reinforcing material be coated on outside the 3rd fibrous reinforcing material 24 is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after the axis winding of support 21.When 4th fibre reinforced materials line or the 4th fibre reinforced materials band are wound around the first auricle 22 vertically, be placed in the first groove 223, the 4th fibre reinforced materials or the 4th fiber-reinforced tape is limited by the first groove 223, guarantee that the 4th fiber reinforcement line or the 4th fiber-reinforced tape are firmly wrapped on the first auricle 22 and support 21, avoid the 4th fiber reinforcement line or the 4th fiber-reinforced tape from landing the first auricle 22 or support 21.

The curb girder 2 of the present embodiment, is wound around the first auricle 22 and support 21 by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, the first auricle 22 and support 21 is bundled together, improve the combination force between the first auricle 22 and support 21.The more important thing is, the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, along the circumferencial direction of support 21 and axially winding, make curb girder 2 greatly improve compared with the compression resistance of full-metallic rod member.4th fibre reinforced materials line or the 4th fibre reinforced materials band are wound around along the axis of support 21, and curb girder 2 is improved greatly compared with the stretch-proof performance of full-metallic rod member.And compared with full-metallic rod member, when reaching identical every mechanical index, the curb girder 2 of the present embodiment has the safety coefficient of obvious weight advantage, volume advantage and Geng Gao, can alleviate the weight of 30%.Compared with full-metallic rod member, when the length that is equal in weight is identical, the stretch-proof performance of the girder of the present embodiment, compression resistance and shock resistance all promote 20% ~ 40%, and stretch-proof performance and the compression resistance of the curb girder of the present embodiment all promote 20% ~ 40%.The truss of the present embodiment is made to have the field of rigors to have bright application prospect at ocean engineering, bridge works etc. to structure weight.

Embodiment 8

Different from embodiment 6, as shown in FIG. 14 and 15, the two ends of the support 21 of the present embodiment are respectively equipped with two the first auricles 22.Be positioned at two the first auricle 22 intervals settings of support 21 with one end.By support 21 with one end two the first auricles 22 between gap 224 adapt with the monolithic 30 of the second auricle 31 on girder 1.A monolithic 30 of the second auricle 31 inserts in gap 224, and the first auricle 22 inserts in the second groove 32 on the second auricle 31, and bolt is run through successively the first auricle 22 and the second auricle 31, thus is arranged on girder 1 by curb girder 2.

Embodiment 9

Different from embodiment 1, as shown in figs. 16-18, the curb girder 2 of the present embodiment comprises support 21.In preferred exemplary as shown in the figure, support 21, in cylindrical body, is obtained by foamed material.The two ends of support 21 are respectively equipped with first auricle 22.First auricle 22 both can be obtained by metallic material, also can be obtained by composite material.Composite material can select metal-base composites, ceramic matric composite and polymer-based composite etc.The present embodiment is preferred, and the first auricle 22 is made for metallic material.First auricle 22 in the form of sheets, and is provided with the second through hole 221.

First auricle 22 is also provided with the first groove 223, first groove 223 and first auricle 22 is divided into two monolithics 220.Each monolithic 220 is equipped with second through hole 221.A monolithic 30 of the second auricle 31 on girder 1 inserts in the first groove 223, and bolt is run through successively the first auricle 22 and the second auricle 31, thus realizes the connection of curb girder 2 and girder 1.

As shown in figure 17, one end of the first auricle 22 is provided with the cylinder 225 adapted with support 21.Cylinder 225 is provided with multiple second projection 226.Multiple second projection 226 along the circumferential direction distributes.Cylinder 225 on first auricle 22 is against support 21,3rd fibre reinforced materials line or the 3rd fibre reinforced materials band are wound around along the axis of support 21 and walk around the second projection 226 of the first auricle 22 being resisted against support 21 two ends successively, the first auricle 22 being resisted against support 21 two ends is connected with support 21, and forms the 3rd fibrous reinforcing material 24 at the outer surface of support 21.

As shown in figs. 16 and 18, the outer surface of the 3rd fibrous reinforcing material 24 is also coated with the 4th fibrous reinforcing material 25.4th fibrous reinforcing material 25 is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after the circumferencial direction and axial winding the 3rd fibrous reinforcing material 24 of support.4th fibrous reinforcing material 25 covers the contact position of the first auricle 22 and support 21.

3rd fibrous reinforcing material 24 is the 3rd fiber-reinforced resin layer.4th fibrous reinforcing material 25 is the 4th fiber-reinforced resin layer.3rd fiber-reinforced resin layer comprises the 3rd fiber and the 3rd resin.4th fiber-reinforced resin layer comprises the 4th fiber and the 4th resin.3rd fiber and the 4th fiber identical or different.3rd fiber and the 4th fiber are selected from the one or several arbitrarily in glass fibre, carbon fiber, steel fiber, boron fiber, asbestos fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp.3rd resin and the 4th resin identical or different.3rd resin and the 4th resin are selected from the one or several arbitrarily in epoxy resin, phenolic resin, vinylite, benzoxazine colophony, polyimide resin, bimaleimide resin.

The composite material rod member of the present embodiment, the first auricle 22 and support 21 is wound around by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, first auricle 22 and support 21 are bundled together, improve the combination force between the first auricle 22 and support 21.The more important thing is, the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band are wound around along the axis of support 21, and curb girder 2 is improved greatly compared with the stretch-proof performance of full-metallic rod member.4th fibre reinforced materials line or the 4th fibre reinforced materials band, along the circumferencial direction of support 21 and axially winding, make curb girder 2 greatly improve compared with the compression resistance of full-metallic rod member.And compared with full-metallic rod member, when reaching identical every mechanical index, the curb girder 2 of the present embodiment has the safety coefficient of obvious weight advantage, volume advantage and Geng Gao, can alleviate the weight of 30%.Compared with full-metallic rod member, when the length that is equal in weight is identical, the stretch-proof performance of the girder of the present embodiment, compression resistance and shock resistance all promote 20% ~ 40%, and stretch-proof performance and the compression resistance of the curb girder of the present embodiment all promote 20% ~ 40%.The truss of the present embodiment is made to have the field of rigors to have bright application prospect at ocean engineering, bridge works etc. to structure weight.

Embodiment 10

Different from embodiment 9, as shown in figure 19, the outside of the cylinder 225 on the first auricle 22 in the present embodiment is provided with first band 227, is not provided with the second projection 226.3rd fibre reinforced materials line or the 3rd fibre reinforced materials band are heating and curing after the circumferencial direction of support 21 and the cylinder 225 be axially wound around on auricle 22 and support 21, form the 3rd fibrous reinforcing material 24.3rd fibrous reinforcing material 24 and first band 227 mechanical snap on cylinder 225 outer surface.Thus the auricle 22 at support 21 two ends is connected with support 21.The outer surface of the 3rd fibrous material layer 24 is also enclosed with the 4th fibrous reinforcing material 25.4th fibrous material layer 25 is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after the circumferencial direction and axial winding the first fibrous reinforcing material 25 of support 21.

3rd fibrous reinforcing material 24 is the 3rd fiber-reinforced resin layer.4th fibrous reinforcing material 25 is the 4th fiber-reinforced resin layer.3rd fiber-reinforced resin layer comprises the 3rd fiber and the 3rd resin.4th fiber-reinforced resin layer comprises the 4th fiber and the 4th resin.3rd fiber and the 4th fiber identical or different.3rd fiber and the 4th fiber are selected from the one or several arbitrarily in glass fibre, carbon fiber, steel fiber, boron fiber, asbestos fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp.3rd resin and the 4th resin identical or different.3rd resin and the 4th resin are selected from the one or several arbitrarily in epoxy resin, phenolic resin, vinylite, benzoxazine colophony, polyimide resin, bimaleimide resin.The preferred version of the present embodiment, the 3rd fiber is carbon fiber, and the 4th fiber is glass fibre.

The curb girder of the present embodiment, is wound around auricle 22 and support 21 by the 3rd fibre reinforced materials line or the 3rd carbon fibre reinforcement band, the first auricle 22 and support 21 is bundled together, improves the combination force between the first auricle 22 and support 21.The more important thing is, the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band, along the circumferencial direction of support 21 and axially winding, make curb girder greatly improve compared with the compression resistance of full-metallic rod member.4th fibre reinforced materials line or the 4th fibre reinforced materials band along support 21 circumferencial direction and be axially wrapped in outside the 3rd fibrous reinforcing material; the compression resistance of further raising curb girder improves greatly; glass fibre selected by 4th fiber simultaneously; the decay resistance of curb girder can be strengthened; play a protective role; extend the working life of curb girder, expand the application area of truss.And compared with full-metallic rod member, when reaching identical every mechanical index, the curb girder of the present embodiment has the safety coefficient of obvious weight advantage, volume advantage and Geng Gao, can alleviate the weight of 30%.Compared with full-metallic rod member, when the length that is equal in weight is identical, the stretch-proof performance of the girder of the present embodiment, compression resistance and shock resistance all promote 20% ~ 40%, and stretch-proof performance and the compression resistance of the curb girder of the present embodiment all promote 20% ~ 40%.This also means that the curb girder of the present embodiment will have bright application prospect in fields such as Aero-Space, heavy machinery, automobiles.

Embodiment 11

Different from embodiment 1, as illustrated in figs 20-22, the curb girder 2 of the present embodiment comprises support 21.In preferred exemplary as shown in the figure, support 21, in strip, is obtained by foamed material.Curb girder 2 also comprises two connecting rods 26.The two ends of connecting rod 26 are respectively equipped with first auricle 22.First auricle 22 in the form of sheets, is provided with the second through hole 221.The first lining 222 is provided with in second through hole 221.First lining 222 can select metal lining, also can select non-metallic bushings.First auricle 22 is wholely set with connecting rod 26, and the first auricle 22 and connecting rod 26 are obtained by metallic material, or it is obtained to be heating and curing after being wound around by the 5th fibre reinforced materials line or the 5th fibre reinforced materials band, or adopts resin transfer molding technique to be formed.The present embodiment is preferred, and being heating and curing after the first auricle 22 and connecting rod 26 are wound around by the 5th fibre reinforced materials line or the 5th fibre reinforced materials band is formed.

Support 21 is provided with two grooves extended vertically 211.Groove 211 and connecting rod 26 adapt.Connecting rod 26 embeds in groove 211 along the direction of arrow in Figure 21, makes the first auricle 22 stretch out groove 211 and be arranged at the end of support 21.Be positioned at two the first auricle 22 intervals settings of support 21 with one end.By support 21 with one end two the first auricles 22 between gap 224 adapt with the monolithic 30 of the second auricle 31 on girder 1.A monolithic 30 of the second auricle 31 inserts in gap 224, and the first auricle 22 inserts in the second groove 32 on the second auricle 31, and bolt is run through successively the first auricle 22 and the second auricle 31, thus is arranged on girder 1 by curb girder 2.The first lining 222 in second through hole 221 can avoid auricle to wear and tear.After first lining 222 weares and teares, comparatively the first auricle 22 is changed conveniently.

As shown in figures 20 and 22, the outer surface of support 21 is coated with the 3rd fibrous reinforcing material 24.3rd fibrous reinforcing material 24 is heating and curing by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band and is formed after the circumferencial direction and axial winding support 21, connecting rod 26 and the first auricle 22 of support 21.For the formation of connecting rod 26 and the 5th fibre reinforced materials line of the first auricle 22 or the winding direction of the 5th fibre reinforced materials band axis along support 21.

The outer surface of the 3rd fibrous reinforcing material 24 also can coated one deck the 4th fibrous reinforcing material 25 (as shown in figure 23).4th fibrous material layer 25 is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after the outer surface of axis winding the 3rd fibrous reinforcing material 24 of support 21.

3rd fibrous reinforcing material 24 is the 3rd fiber-reinforced resin layer.3rd fibrous reinforcing material comprises the 3rd fiber and the 3rd fiber.4th fibre reinforced materials is the 4th fiber-reinforced resin.4th fiber-reinforced resin comprises the 4th fiber and the 4th resin.5th fibre reinforced materials is the 5th fiber-reinforced resin.5th fiber-reinforced resin comprises the 5th fiber and the 5th resin.3rd fiber, the 4th fiber and the 5th fiber are identical or different.3rd fiber, the 4th fiber and the 5th fiber are selected from the one or several arbitrarily in glass fibre, carbon fiber, steel fiber, boron fiber, asbestos fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp.3rd resin, the 4th resin and the 5th resin are identical or different.3rd resin, the 4th resin and the 5th resin are selected from the one or several arbitrarily in epoxy resin, phenolic resin, vinylite, benzoxazine colophony, polyimide resin, bimaleimide resin.The preferred version of the present embodiment, the 3rd fiber is carbon fiber, and the 4th fiber is glass fibre.

The curb girder of the present embodiment, first auricle 22 is wholely set with connecting rod 26, be heating and curing after being wound around by the 5th fibre reinforced materials line or the 5th fibre reinforced materials band and formed, and the winding direction of the 5th fibre reinforced materials line or the 5th fibre reinforced materials band is along the axis of support 21, curb girder 2 is improved greatly compared with the stretch-proof performance of full-metallic rod member.Auricle, connecting rod and support, along the circumferencial direction of support 21 and axially winding, are bundled together, curb girder 2 are improved greatly compared with the compression resistance of full-metallic rod member by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band.4th fibre reinforced materials line or the 4th fibre reinforced materials band along support 1 circumferencial direction and be axially wrapped in outside the first fibrous reinforcing material; the compression resistance of further raising curb girder improves greatly; glass fibre selected by 4th fiber simultaneously; the decay resistance of curb girder can be strengthened; play a protective role; extend the working life of curb girder, expand the application area of truss.And compared with full-metallic rod member, when reaching identical every mechanical index, the curb girder 2 of the present embodiment has the safety coefficient of obvious weight advantage, volume advantage and Geng Gao, can alleviate the weight of 30%.Compared with full-metallic rod member, when the length that is equal in weight is identical, the stretch-proof performance of the girder of the present embodiment, compression resistance and shock resistance all promote 20% ~ 40%, and stretch-proof performance and the compression resistance of the curb girder of the present embodiment all promote 20% ~ 40%.The truss of the present embodiment is made to have the field of rigors to have bright application prospect at ocean engineering, bridge works etc. to structure weight.

Embodiment in the utility model, only for being described the utility model, does not form the restriction to right, other equivalent in fact substituting, all in the utility model protection domain that those skilled in that art can expect.

Claims (25)

1. truss, is characterized in that, comprises at least one girder and at least one curb girder; At least one end of described curb girder is connected with a wherein girder.

2. truss according to claim 1, is characterized in that, described girder comprises at least one first composite material rod member; Described first composite material rod member comprises metal cartridge; Described metal cartridge outer surface is coated with the first fiber-reinforced plastic layer; Described metal cartridge outer surface is provided with insulation coating; Described insulation coating is arranged between described metal cartridge outer surface and described first fiber-reinforced plastic layer.

3. truss according to claim 2, is characterized in that, described first fiber-reinforced plastic layer is formed for one or more the first fiber reinforcement plastic stockline or the first fiber reinforcement plastic material strip are wound in described metal cartridge outer surface; Described many first fiber reinforcement plastic stocklines or the first fiber reinforcement plastic material strip are wound in described metal cartridge outer surface successively.

4. truss according to claim 2, is characterized in that, described first fiber-reinforced plastic layer outer surface is also provided with the second fiber-reinforced plastic layer; Described second fiber-reinforced plastic layer is that the second fiber reinforcement plastic stockline or the second fiber reinforcement plastic material strip are wound in described first fiber-reinforced plastic layer outer surface formation successively.

5. truss according to claim 4, is characterized in that, described first fiber-reinforced plastic layer is cfrp layer; Described second fiber-reinforced plastic layer is glass fiber reinforced plastic layer or whisker reinforced plastic layer.

6. truss according to claim 2, is characterized in that, described metal cartridge outer surface is waveform.

7. truss according to claim 2, is characterized in that, the end of described first composite material rod member is provided with flange; Described first composite material rod member is connected with the first composite material rod member described in another by described flange.

8. truss according to claim 7, is characterized in that, the outer surface of described flange is waveform; Described first fiber-reinforced plastic layer covers the outer surface of described flange undulate, with the outer surface mechanical snap of described flange undulate.

9. truss according to claim 7, is characterized in that, the two ends of described first composite material rod member are equipped with described flange; The outer surface of described flange is provided with multiple the first projection along the circumferential direction distributed; First fiber reinforcement plastic stockline or the first fiber reinforcement plastic material strip are axially wound around and the first projection walked around successively in described metal cartridge two end flange along described metal cartridge, the flange at described metal cartridge two ends is connected with described metal cartridge, and forms described first fiber-reinforced plastic layer.

10. truss according to claim 1, is characterized in that, described curb girder comprises support; The two ends of described support are respectively equipped with at least one first auricle; The outer surface of described support is coated with the 3rd fibrous reinforcing material.

11. truss according to claim 10, is characterized in that, described first auricle is resisted against on described support; 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band form described 3rd fibrous reinforcing material along being heating and curing after the axis of described support is wound around described support and described first auricle, and are connected with described support by described first auricle.

12. truss according to claim 11, is characterized in that, the outer surface of described 3rd fibrous reinforcing material is also coated with the 4th fibrous reinforcing material; 4th fibre reinforced materials line or the 4th fibre reinforced materials band are along the circumferencial direction of described support and described 4th fibrous reinforcing material of formation that is heating and curing after being axially wound around described 3rd fibrous reinforcing material.

13. truss according to claim 10, is characterized in that, described first auricle is resisted against on described support; Described first auricle along the circumferencial direction of described support and described 3rd fibrous reinforcing material of formation that is heating and curing after being axially wound around described support and described first auricle, and is connected with described support by the 3rd fibre reinforced materials line or the 3rd fibre reinforced materials band.

14. truss according to claim 13, is characterized in that, the outer surface of described 3rd fibrous reinforcing material is also coated with the 4th fibrous reinforcing material; Described 4th fibrous reinforcing material is heating and curing by the 4th fibre reinforced materials line or the 4th fibre reinforced materials band and is formed after described 3rd fibrous reinforcing material of axis winding of described support.

15. truss according to claim 11 or 14, it is characterized in that, described first auricle is provided with the first groove; When described 3rd fibre reinforced materials line or described 3rd fibre reinforced materials band are wound around described first auricle vertically, be placed in described first groove; Or when described 4th fibre reinforced materials line or described 4th fibre reinforced materials band are wound around described first auricle vertically, be placed in described first groove.

16. truss according to claim 11 or 14, it is characterized in that, described first auricle is provided with multiple the second projection along the circumferential direction distributed; Described 3rd fibre reinforced materials line or described 3rd fibre reinforced materials band are wound around vertically and walk around the second projection on the auricle of described support two ends first successively, are connected by first auricle at described support two ends with described support; Or described 4th fibre reinforced materials line or described 4th fibre reinforced materials band are wound around vertically and walk around the second projection on the auricle of described support two ends first successively, are connected by first auricle at described support two ends with described support.

17. truss according to claim 11 or 13, it is characterized in that, the outer surface of described first auricle is waveform; When described 3rd fibre reinforced materials line or described 3rd fibre reinforced materials band are wound around described first auricle, with the outer surface mechanical snap of undulate on described first auricle.

18. truss according to claim 10, is characterized in that, described curb girder also comprises the first link; Described first link comprises the first projection and the first slot that match; Described first projection is arranged on described first auricle and described support on one of them, and described first slot is arranged on another in described first auricle and described support; Described first projection is inserted in described first slot pluggablely, described first auricle is arranged on the end of described support.

19. truss according to claim 10, is characterized in that, described curb girder also comprises connecting rod; The two ends of described connecting rod are respectively equipped with described first auricle; Described support is provided with the groove extended vertically; Described groove and described connecting rod adapt; Described connecting rod embeds in described groove, makes described first auricle stretch out the end that described groove is arranged at described support.

20. truss according to claim 19, is characterized in that, the number of described connecting rod is two; Described support is provided with two described grooves; Each described connecting rod embeds in a described groove; Be arranged at two the auricle intervals settings of described support with one end.

21. truss according to claim 19, is characterized in that, described first auricle and described connecting rod are wholely set; Described first auricle and described connecting rod are obtained by metallic material, or it is obtained to be heating and curing after being wound around by the 5th fibre reinforced materials, or adopt resin transfer molding technique to be formed.

22. truss according to any one of claim 10,11,12,13,14,21, it is characterized in that, described 3rd fibrous reinforcing material is the 3rd fiber-reinforced resin layer; Described 4th fibrous reinforcing material is the 4th fiber-reinforced resin layer; Described 5th fibrous reinforcing material is the 5th fiber-reinforced resin layer; Described 3rd fiber-reinforced resin layer comprises the 3rd fiber and the 3rd resin; Described 4th fiber-reinforced resin layer comprises the 4th fiber and the 4th resin; Described 5th fiber-reinforced resin layer comprises the 5th fiber and the 5th resin; Described 3rd fiber, described 4th fiber or not phase identical with described 5th fiber; Described 3rd fiber, described 4th fiber or described 5th fiber are selected from the one or several arbitrarily in glass fibre, carbon fiber, steel fiber, boron fiber, asbestos fiber, aramid fibre, Orlon fiber, polyester fibre, nylon fiber, vinylon fiber, polypropylene fiber, polyimide fiber, cotton fiber and sisal hemp; Described 3rd resin, described 4th resin or described 5th resin are identical or different; Described 3rd resin, described 4th resin or described 5th resin are selected from the one or several arbitrarily in epoxy resin, phenolic resin, vinylite, benzoxazine colophony, polyimide resin, bimaleimide resin.

23. truss according to claim 10, is characterized in that, described girder is provided with the second auricle adapted with described first auricle; Bolt or screw run through described first auricle and described second auricle successively, are arranged on described girder by described curb girder.

24. truss according to claim 23, is characterized in that, also comprise sleeve, and the outer surface of described sleeve is provided with the second auricle described at least one; Described jacket casing is located on the outer surface of described girder; Described girder is provided with the first through hole extended vertically; The second lining is provided with in described first through hole; Bolt or screw run through described sleeve, the hole wall of described girder and described second lining successively, are locked at by described sleeve on described girder; Described sleeve comprises at least two arc plates; The both sides of described arc plate are provided with the flange extended radially outward; Bolt or screw run through the flange on two adjacent arc plates successively, are connected by adjacent two arc plates.

25. truss according to claim 23, is characterized in that, described girder is cuboid; Described second auricle is arranged on a flat board; Bolt or screw run through described flat board and described girder successively, are arranged on described girder by described second auricle.