CN213358359U

CN213358359U - Culvert pipe component, culvert pipe assembly and culvert pipe

Info

Publication number: CN213358359U
Application number: CN202021112586.8U
Authority: CN
Inventors: 张建庭; 罗庆君
Original assignee: Hebei Hengrui Composite Material Co ltd
Current assignee: Hebei Hengrui Composite Material Co ltd
Priority date: 2020-01-13
Filing date: 2020-06-16
Publication date: 2021-06-04
Anticipated expiration: 2030-06-16
Also published as: CN111441266A; CN212505912U

Abstract

The present disclosure provides a culvert pipe component, the culvert pipe component is made by SMC combined material through mould pressing technology an organic whole, includes: the structural member comprises a structural member body, a plurality of ribs and grooves, wherein the structural member body is provided with a longitudinal direction, the cross section orthogonal to the longitudinal direction is in an arc shape, and the structural member body is alternately provided with the plurality of ridges and the grooves in the longitudinal direction; a front connection mechanism disposed at a longitudinal front end of the member body; and the rear connecting mechanism is arranged at the longitudinal rear end of the component body, wherein the overall size of the front connecting mechanism and the rear connecting mechanism is smaller than that of the component body, and when more than two culvert pipe components are connected into a culvert pipe in a front-back mode, the rear connecting mechanism of the front culvert pipe component is connected with the front connecting mechanism of the rear culvert pipe component, so that the connection of more than two culvert pipe components outside the culvert pipe is avoided. The present disclosure also provides a culvert pipe assembly and culvert pipe.

Description

Culvert pipe component, culvert pipe assembly and culvert pipe

Technical Field

The present disclosure relates to the fields of water supply and drainage pipelines and traffic channels of roads, railways, ports, factories, mines, bridges, tunnels, etc., and particularly to a culvert member, a culvert assembly, and a culvert that can be used in the above fields.

Background

At present, a domestic culvert channel is generally of a reinforced concrete structure, but the reinforced concrete structure has the technical problems of long production period, high transportation cost, long construction period, short service life, more potential safety hazards and the like.

In recent years, a corrugated steel plate structure made of steel plates is adopted to replace a part of reinforced concrete structure and is used for projects such as culvert channels, spliced pipelines, old bridge repair, tunnel reinforcement, comprehensive pipe galleries and the like. Compared with a reinforced concrete structure, although the corrugated steel plate structure improves the performance and reduces the cost, the chemical corrosion resistance is relatively poor, the anticorrosive treatment is needed, the anticorrosive performance has certain limitation, the anticorrosive paint is coated on site, the environmental pollution is caused, the surface hardness of the anticorrosive coating is poor, the anticorrosive coating falls off after the surface is rubbed, the surface corrosivity is poor, and the service life of the culvert pipe is shortened. And because the corrugated steel plate adopts the stamping process, the forming process precision is low, and is easy to deform in the transportation and installation process, thereby causing the installation and construction difficulty, poor sealing performance after construction, and easy causing the project seepage to damage the foundation, and the corrugated steel plate is easy to cause the circular pipeline after installation to be unable to be concentric after deformation, thereby causing the project safety hidden trouble.

Chinese patent publication CN110387834A discloses a corrugated culvert pipe reinforcing structure and a construction method, in which a plurality of reinforcing ribs are equidistantly distributed in the corrugated grooves of the inner wall of the corrugated culvert pipe, and the reinforcing ribs are connected and fixed with the pipe wall of the corrugated culvert pipe through connecting pieces. In the patent publication, need add once more alone in the ripple culvert pipe installation and establish the strengthening rib and the strengthening rib is located ripple culvert pipe inner wall, consequently with the utility model discloses well integrative compression molding's strengthening rib is compared and is had the loaded down with trivial details and use inconvenient scheduling problem of installation procedure.

In addition, in the process of reforming old ducts or culvert pipes, after the culvert pipes or culvert pipes with small inlet diameters are placed in the old ducts or culvert pipes, when the culvert pipes or culvert pipes are connected and installed, the construction difficulty is inevitably caused because the installation flanges are positioned at the outer sides of the newly placed culvert pipes or culvert pipes.

The mounting flange is positioned at the outer side of the culvert pipe or duct, and when the multi-section culvert pipe or duct is connected, the connecting bolt positioned at the lowest end of the flange has the problem of difficult mounting.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the present disclosure provides the following technical solutions.

According to one aspect of the present disclosure, a stent member integrally formed from a SMC composite via a molding process, comprises: the structural member comprises a structural member body, a connecting piece and a connecting piece, wherein the structural member body is provided with a longitudinal direction, and the cross section orthogonal to the longitudinal direction is in an arc shape; a front connection mechanism disposed at a longitudinal front end of the member body; and the rear connecting mechanism is arranged at the longitudinal rear end of the component body, wherein the external dimension of the front connecting mechanism and the external dimension of the rear connecting mechanism are smaller than or equal to the external dimension of the component body, and when more than two culvert components are connected into a culvert pipe in the front and rear directions, the rear connecting mechanism of the previous culvert component is connected with the front connecting mechanism of the next culvert component.

The culvert pipe component adopting the technical scheme is formed by die pressing of SMC composite materials, and the culvert pipe made of the materials can completely meet the requirement of strength and eliminate the disadvantages of the steel corrugated pipe. And the culvert pipe component can adopt an internal connection mode, thereby avoiding the installation difficulty caused by external conditions in the culvert pipe installation process.

In accordance with at least one embodiment of the present disclosure, the forward attachment mechanism is a forward attachment flange and the aft attachment mechanism is an aft attachment flange, the forward and aft attachment flanges projecting inwardly relative to the member body so as to attach the forward and aft culvert members within the culvert.

According to at least one embodiment of the present disclosure, a front mounting mechanism is provided on the front connecting flange and a rear mounting mechanism is provided on the rear connecting flange, and the connection of the front and rear culvert members is achieved by the front connecting mechanism and the rear connecting mechanism.

According to at least one embodiment of the present disclosure, the front mounting mechanism and the rear mounting mechanism are respectively provided with mounting holes opened on the front connecting flange and the rear connecting flange.

According to the above-described culvert members, by arranging the connection flanges to protrude inwards, it is possible to connect inside the culvert during installation, e.g. during modification of old pipes, after putting new pipes into the existing pipes, the outside of the pipes has no construction conditions, so that this problem can be solved well by the internal installation of the culvert members according to the present disclosure.

According to at least one embodiment of the present disclosure, the mounting holes of the front and rear connecting flanges are equally spaced.

According to above-mentioned technical scheme, through the equidistant arrangement of mounting hole, can stagger certain angle in circumference when connecting flange connection in front and back to avoid left and right sides connecting flange to be located a straight line, can strengthen the culvert pipe in ascending intensity in circumference like this and effectively avoid fore-and-aft seam continuous, reduce vertical unfavorable stress influence, and also can guarantee to realize the mounting hole alignment easily even if stagger predetermined angle in the installation, do not influence the installation.

According to at least one embodiment of the present disclosure, the stent further comprises a left connecting means and a right connecting means, wherein when more than two stent members are circumferentially connected to form a stent, the right connecting means of the stent member positioned on the left side is connected to the left connecting means of the stent member positioned on the right side.

According to at least one embodiment of the present disclosure, the left connecting mechanism is a left connecting flange, the right connecting mechanism is a right connecting flange, and the left and right connecting flanges protrude outward or inward with respect to the member body, and the left and right connecting flanges are opened with connecting holes.

In accordance with at least one embodiment of the present disclosure, the stent member further comprises reinforcing ribs disposed on the outer and/or inner surface of the member body, disposed between and connected to adjacent protuberances, and a plurality of reinforcing ribs disposed circumferentially between each protuberance.

In the above technical solution, the stent members and the stent formed thereby may be effectively reinforced in the longitudinal direction by adding the reinforcing ribs. Meanwhile, the culvert pipe components are integrally formed, and the reinforcing ribs are also integrally formed, so that the reinforcing ribs can be prevented from being artificially installed in the later installation stage for enhancing the strength in the longitudinal direction.

According to at least one embodiment of the present disclosure, each of the reinforcing ribs is orthogonal to each of the ridges.

According to at least one embodiment of the present disclosure, the reinforcing beads between the ridges are arranged continuously in the longitudinal direction or are arranged at intervals.

According to at least one embodiment of the present disclosure, a cross-sectional shape of the ridge in the longitudinal direction is a semicircle, or a portion of a semicircle, and a cross-sectional shape of the groove in the longitudinal direction is a semicircle, or a portion of a semicircle; or the cross-sectional shape of the ridges and grooves in the longitudinal direction is sinusoidal.

In the above-described technical solution, since the culvert members are molded by SMC material, a mold release treatment is required after the molding process, and by providing the ridges and grooves in the above-described shape, the mold release can be effectively performed.

In accordance with at least one embodiment of the present disclosure, the stent members further comprise support ribs that support an upper stent member by support ribs of a lower stent member when two stent members are stacked one on top of the other, the support ribs being disposed at the longitudinal front end and the longitudinal rear end of the member body and protruding outward, wherein at least one of the support ribs is circumferentially disposed along the longitudinal front end and the longitudinal rear end.

In the above-described technical solution, by providing the support ribs, when the culvert members are required to be stacked in storage or transportation, the upper culvert members may be supported by the support ribs of the lower culvert members, so that the curvature, etc. of the upper culvert members may be effectively maintained.

According to at least one embodiment of the present disclosure, the support ribs are perpendicular to a plane of projection of the culvert members.

In the technical scheme, the support rib can provide the maximum support strength through the direction arrangement of the support rib, so that the support rib is prevented from being damaged in an inclined mode and the like.

According to at least one embodiment of the present disclosure, the SMC composite that is press-molded to form the stent member comprises at least an upper layer of continuous glass fibers consisting of bundles of long glass fibers oriented in the longitudinal direction and a lower layer of continuous glass fibers consisting of bundles of long glass fibers intersecting the longitudinal direction.

In the technical scheme, the overall strength of the culvert pipe in the longitudinal direction and the direction intersecting the longitudinal direction can be effectively enhanced by laying two layers of continuous glass fibers.

In accordance with another aspect of the present disclosure, a stent assembly comprising stent components as described above is assembled into a circumferentially closed stent assembly by connecting the left side connection of one stent component to the right side connection of another stent component in two or more stent components.

According to at least one embodiment of the present disclosure, the number of the culvert members is N, wherein N is greater than or equal to 2, the arc degree of the arc-shaped cross-section of each culvert member is 360/N, and the left side connecting mechanism of one culvert member and the right side connecting mechanism of another culvert member are connected to assemble the circumferentially closed culvert assembly.

According to yet another aspect of the present disclosure, a stent is constructed by sequentially connecting stent modules as described above in a longitudinal direction.

In accordance with at least one embodiment of the present disclosure, one stent assembly is joined to another stent assembly circumferentially offset by a predetermined angle for assembly into a stent.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Figure 1 illustrates a schematic view of a stent component according to one embodiment of the present disclosure.

FIG. 2 illustrates a cross-sectional shape of a groove and a ridge in accordance with one embodiment of the present disclosure.

Figure 3 illustrates a schematic medial side view of a stent member according to one embodiment of the present disclosure.

Figure 4 illustrates a schematic view of the medial and lateral sides of a stent member according to one embodiment of the present disclosure.

Figure 5 illustrates a schematic view of a stent member according to one embodiment of the present disclosure.

Figure 6 illustrates a stacked schematic view of stent components according to one embodiment of the present disclosure.

Figure 7 illustrates a schematic view of a reinforcing bar of a stent member according to one embodiment of the present disclosure.

Figure 8 illustrates a schematic view of a reinforcing bar of a stent member according to one embodiment of the present disclosure.

Figure 9 illustrates a schematic view of a reinforcing bar of a stent member according to one embodiment of the present disclosure.

Figure 10 illustrates a schematic view of a reinforcing bar of a stent member according to one embodiment of the present disclosure.

Figure 11 illustrates a schematic view of a reinforcing bar of a stent member according to one embodiment of the present disclosure.

Figure 12 illustrates a connection schematic of stent components according to one embodiment of the present disclosure.

Figure 13 shows a schematic view of a stent according to one embodiment of the present disclosure.

Figure 14 shows a schematic view of a stent according to one embodiment of the present disclosure.

Figure 15 shows a schematic view of a stent according to one embodiment of the present disclosure.

Figure 16 shows a schematic view of a stent according to one embodiment of the present disclosure.

Figure 17 illustrates a schematic view of a stent assembly staggered connection according to one embodiment of the present disclosure.

Figure 18 shows a schematic view of a duct according to one embodiment of the present disclosure.

Description of reference numerals:

100 culvert pipe component

110 component body

111 bump

112 groove

121 front attachment flange

122 rear connecting flange

131 left connecting flange

132 right connecting flange

140 reinforcing ribs

150 first support rib

160 second support rib

170 left connecting flange reinforcing rib

180 right side connecting flange reinforcing rib

190 mounting hole

200 fastener

201 connecting bolt

202 connecting nut

203 connecting pad

300 culvert pipe assembly

500 cylindrical culvert pipe

600 duct.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.

When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., as in "side wall") to describe one component's relationship to another (other) component as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.

The SMC composite material is a short name of Sheet Molding compound, namely a Sheet Molding compound composite material, and is formed into a Sheet by compounding resin paste, chopped glass fibers and/or continuous glass fibers and performing high-temperature and high-pressure die pressing on the Sheet in a die to form a required product.

Next, the culvert member 100 of the present disclosure will be described with reference to the accompanying drawings.

Figure 1 illustrates a perspective view of a stent component 100. The culvert members 100 are integrally formed from SMC composite material via a molding process.

The stent member 100 comprises a member body 110, a front attachment mechanism, a rear attachment mechanism, and reinforcing ribs 140.

The member body is provided with a longitudinal direction, the cross section orthogonal to the longitudinal direction is in an arc shape, and a plurality of ridges and grooves are alternately arranged on the member body in the longitudinal direction. And a front connection mechanism disposed at a longitudinal front end of the member body. And a rear connection mechanism disposed at a rear end of the member body in a longitudinal direction. The connecting mechanism is characterized in that the overall size of the front connecting mechanism and the rear connecting mechanism is smaller than that of the component body, when more than two culvert pipe components are connected into a culvert pipe in a front-back mode, the rear connecting mechanism of the front culvert pipe component is connected with the front connecting mechanism of the rear culvert pipe component, and the connection of more than two culvert pipe components outside the culvert pipe is avoided.

The culvert pipe components can be prevented from being connected outside the culvert pipe in the construction process, so that the difficulty caused by the external connection of the culvert pipe is avoided.

The member body 110 has a longitudinal direction (X direction as shown in fig. 1), and a cross section orthogonal to the longitudinal direction is arc-shaped or substantially arc-shaped.

A plurality of ridges 111 and grooves 112 are alternately arranged on an outer surface (outer arc surface) of the member body 110, wherein the outer surface (outer arc surface) described herein means: when forming a circumferentially closed cylindrical stent assembly, another wall surface of the cylindrical stent assembly, such as the wall surface illustrated in fig. 1, is opposite the inner wall surface of the cylindrical stent assembly. The plurality of ridges 111 and grooves 112 are alternately arranged in the longitudinal direction. In fig. 1, not all grooves and ridges are shown with reference numerals for the sake of brevity. The plurality of grooves 112 and the plurality of ridges 111 may extend in the circumferential direction of the member body.

For example, as shown in fig. 2, the cross-sectional shape of the ridge 111 in the longitudinal direction is a semicircle, or a portion of a semicircle, and the cross-sectional shape of the groove 112 in the longitudinal direction is a semicircle, or a portion of a semicircle. Further, the sectional shape of the ridges 111 and the grooves 112 in the longitudinal direction may also be sinusoidal. Such release of the formed stent member 100 from the mold may be facilitated after the stent member 100 has been formed by SMC composite molding.

The front and rear connection mechanisms may be flange-type connection mechanisms, plug-type connection mechanisms, lap-joint connection mechanisms, snap-fit connection mechanisms, etc., and the specific connection form is not limited in this disclosure as long as the connection of the culvert pipe components outside the culvert pipe can be avoided.

The front attachment flange 121 serves as a front attachment mechanism and the rear attachment flange 122 serves as a rear attachment mechanism.

The connection flange described herein is a flange for mounting. When viewed from the left side to the right side of fig. 1 in the longitudinal direction (X direction), the front connecting flange 121 is a connecting flange located on the front side, the rear connecting flange 122 is a connecting flange located on the rear side, the left connecting flange 131 is a connecting flange located on the left side, and the right connecting flange 132 is a connecting flange located on the right side.

The front and

rear connection flanges

121 and 122 are provided at both sides of the longitudinal direction of the member body 110. The front and

rear connection flanges

121 and 122 protrude inward to be formed as connection flanges, the front and

rear connection flanges

121 and 122 extending in the circumferential direction of the member body 110. Wherein the inward projection here is an extending projection in a direction toward an inner wall surface of the cylindrical culvert assembly.

In the present disclosure, the front connection flange 121 and the rear connection flange 122 are formed to protrude inward to form the connection flange, so that when the front and rear culvert members 100 are connected, a constructor can install inside the culvert, and thus the installation difficulty caused by external installation conditions can be avoided, for example, in the process of modifying an old culvert or culvert, after the culvert or culvert with a small diameter is placed in the old culvert or culvert, since the exterior hardly has installation conditions, the connection flange formed by the front connection flange 121 and the rear connection flange 122 is arranged on the inner side of the culvert, and the constructor can install inside the culvert, so that the installation difficulty does not exist.

The stent member 100 of the present disclosure may also include left and right side attachment mechanisms. When more than two culvert members are circumferentially connected to form a culvert, the right connecting mechanism of one culvert member on the left side is connected with the left connecting mechanism of one culvert member on the right side

The left and right connecting mechanisms may be flange type connecting mechanisms, plug type connecting mechanisms, lap type connecting mechanisms, and buckle type connecting mechanisms, and the specific connecting modes are not limited in the present disclosure.

The left and right connecting mechanisms will be described below in the form of left and right connecting

flanges

131 and 132.

The left connecting flange 131 of one stent component and the right connecting flange 132 of another stent component may be connected to assemble a circumferentially closed stent assembly, and the anterior connecting flange 121 of a stent component in one stent unit and the posterior connecting flange 122 of a stent component in another stent unit may be connected to assemble a longitudinally extending stent.

The left and right connecting

flanges

131 and 132 are provided on both sides of the member body 110 in the circumferential direction. The left and

right connection flanges

131 and 132 are formed as connection flanges to protrude outward or inward. Wherein the inward projection is an extending projection in a direction toward an inner wall surface of the cylindrical culvert assembly and the outward projection is an extending projection in a direction away from the inner wall surface of the cylindrical culvert assembly.

As shown in fig. 1, the reinforcing beads 140 are arranged on the outer arc surface of the member body 110, are disposed between the adjacent ridges 111, that is, in the grooves 112, are connected to the adjacent ridges 111, and a plurality of reinforcing beads 140 are disposed in the circumferential direction between the respective ridges.

As shown in fig. 3 (fig. 3 shows the case of the inner side of the stent member), the beads 140 may also be arranged on the inner arc surface of the member body 110, disposed between the adjacent protuberances 111, i.e., in the grooves 112, connected to the adjacent protuberances 111, and a plurality of beads 140 may be disposed in the circumferential direction between the protuberances.

In the case shown in fig. 3, the inner side surface of the member body 110 is formed of a plurality of grooves and a plurality of ridges, which are alternately arranged in the longitudinal direction of the member body. According to an alternative embodiment of the disclosure, the inner side face may be provided planar. In this case, it may not be necessary to provide ribs on the inner side.

In addition, the reinforcing beads 140 may be disposed on both the outer arc surface and the inner arc surface of the member body 110, as shown in fig. 4, for example.

As shown in fig. 1 and 3, each rib 140 is orthogonal to each ridge 111 and is located in a groove 112 between two adjacent ridges 111. The height of the ribs 140 may be less than the height of the ridges 111 or may be equal to the height of the ridges 111. Thus, in fig. 1 and 3, each rib 140 forms a plurality of ribs, and in fig. 1 and 3, each rib is disposed in a groove 112 of an adjacent ridge 111, such that each rib is disposed in series with respect to each groove or ridge.

By arranging the longitudinal connecting ribs, the supporting strength and the stability of the culvert pipe component in the longitudinal direction can be further improved through the function of the reinforcing ribs.

As shown in fig. 3, the culvert member 100 includes front and rear connecting flange stiffeners 170, the front connecting flange stiffeners intersecting the back side of the front connecting flange 121 with the inner arcuate surface of the member body 110, and the rear connecting flange stiffeners intersecting the back side of the rear connecting flange 122 with the inner arcuate surface of the member body 110. The front and rear coupling flange reinforcing beads 170 serve to reinforce the structures of the front and

rear coupling flanges

121 and 122.

The front and rear connecting flange beads 170 are provided in plurality along the circumferential direction of the member body 110, and extend in the longitudinal direction of the member body 110, that is, the length direction of the front and rear connecting flange beads 170 may be located in the longitudinal direction of the member body. The height of the front and rear connecting flange beads 170 is equal to or less than the height of the front and rear connecting

flanges

121 and 122.

The culvert member 100 includes left and right connecting flange stiffeners 180, the left connecting flange stiffener intersecting the inside face of the left connecting flange and the outer or inner arcuate surface of the member body, and the right connecting flange stiffener intersecting the inside face of the right connecting flange and the outer or inner arcuate surface of the member body.

Although the left and right attachment flanges are shown as being disposed to extend outwardly in fig. 1, they may extend inwardly with the left and right attachment flange stiffeners intersecting the outer arcuate surface of the member body and extending inwardly with the left and right attachment flange stiffeners intersecting the inner arcuate surface of the member body.

The left and right connecting flange reinforcing beads 180 are used to reinforce the structure of the left and right connecting

flanges

131 and 132, and the left and right connecting flange reinforcing beads 180 are provided to the left and right connecting

flanges

131 and 132 and the member body 110.

The left and right connecting flange beads 180 are provided in plural in the longitudinal direction of the member body 110 and extend in the circumferential direction of the member body 110, that is, the length direction of the left and right connecting flange beads 180 may be located in the circumferential direction of the member body 110. The left and right connecting flange reinforcing beads 180 may have a height equal to or less than that of the left and right connecting

flanges

131 and 132 for reinforcing the structural strength of the left and right connecting

flanges

131 and 132 of the member body. The left and right coupling flange beads 180 may be engaged with the grooves 112 of the member body 110 and also engaged with the ridges 111 of the member body 110.

The front attachment flange 121 and the rear attachment flange 122 are provided with first mounting means and second mounting means, respectively, which may be in the form of mounting holes 190, wherein the mounting holes 190 are arranged at an intermediate angle in a cross section of the front attachment flange 121 and the rear attachment flange 122 perpendicular to the longitudinal direction, i.e. the mounting holes 190 are arranged at equal intervals in the circumferential direction of the front attachment flange 121 and the rear attachment flange 122.

The stent member 100 shown in figure 5 has an arc of 120 deg., and the angle theta 1 between two adjacent mounting holes 190 may be set to 7.5 deg., but those skilled in the art will appreciate that the angle of the mounting holes may also be set to 15 deg., etc. And the angle theta between the outermost mounting holes 190 of the culvert members 100 and the edges of the culvert members 100₂Is the angle theta between two adjacent mounting holes 190₁1/2, e.g. when theta₁At 7.5 deg., theta₂Is 3.75 DEG when theta₁At 15 deg., theta₂Is 7.5 degrees.

With the above-described angular arrangement, when two culvert members 100 are circumferentially connected, the angle formed between the outermost mounting holes of one culvert member and the corresponding outermost mounting holes of another culvert member is θ₁. When connecting two stent members 100 in the longitudinal direction, the two stent members 100 may be connected circumferentially offset by a predetermined angle, such as when θ₁At 7.5 deg., the predetermined angle of offset may be 7.5 deg. or a multiple thereof.

As mentioned above, the stent member 100 is molded from an SMC composite material, the SMC composite material molded to form the stent member including at least an upper layer of continuous glass fibers comprised of bundles of long glass fibers oriented in a longitudinal direction and a lower layer of continuous glass fibers comprised of bundles of long glass fibers oriented transverse to the longitudinal direction.

In the present disclosure, the continuous glass fiber may be laid in both the longitudinal direction and the direction intersecting the longitudinal direction, so that an outer surface portion of the culvert member 100 may be formed mainly of long glass fiber bundles laid in the longitudinal direction, and a lower portion of the outer surface may be formed mainly of long glass fiber bundles laid in the longitudinal intersecting direction. In this way, the strength of the stent member may be increased more effectively.

It should be noted that the continuous glass fibers described herein refer to longer glass fibers. Continuous glass fibers are formed by a drawing process and are typically produced by winding in a drawing machine for several tens of minutes. The technical term as opposed to continuous glass fibers is "chopped glass fibers", i.e. continuous glass fibers are used cut into short fibers, for example, several centimeters long. Conventional SMC sheets provide only a layer of chopped glass fibers that flow easily and mix well with the plastic components of the composite to provide uniform reinforcement.

In addition, the continuous glass fiber used in the disclosure is also different from a "glass fiber mesh cloth", the continuous glass fiber can be used for twisting or untwisted weaving of the glass fiber cloth, and the glass fiber mesh cloth has extremely outstanding strength, so that a good special reinforcing effect can be provided for a product part. However, the fibers in the glass fiber mesh cloth are mutually bound, the flowability is poor, the dispersion performance is obviously reduced, and even the fibers cannot be dispersed, so that adverse effects can be caused in a die pressing process, and particularly, in a product with more groove structures in a die, the reinforcement is difficult to be provided for the corresponding structures of the grooves. While the fibers in the continuous glass fibers in this disclosure are not woven, that is, the continuous length of glass fibers are generally independent of each other. Due to the lack of constraint among the continuous glass fibers, the glass fiber mesh cloth has excellent mobility compared with a glass fiber mesh cloth, and simultaneously, the movement of the chopped fibers in the adjacent chopped fiber layers is not easily blocked. Continuous fibers tend to enter the parallel-arranged grooves in the mold during molding and also tend to enter the smaller mold cavities in a curved position relatively easily. By utilizing the added continuous glass fiber layer, the product strength of the culvert pipe member is improved compared with the traditional SMC process. Furthermore, the glass fiber filaments of the continuous glass fiber layer can effectively enter the grooves of the mold cavity, particularly the grooves arranged in parallel with the fibers, so that the protruding wall parts of the molded product are effectively reinforced.

The culvert member 100 includes first support ribs 150 provided at positions of the front and

rear connection flanges

121 and 122, respectively, the first support ribs 150 and the front and

rear connection flanges

121 and 122 are joined with the member body 110, and are integrally formed with the member body 110 with the front and

rear connection flanges

121 and 122.

The first support ribs 150 may be aligned along the circumferential direction of the member body 110 and extend in the longitudinal direction X of the member body 110. That is, the first support rib 150 extends outwardly relative to the member body. The upper surface of the first support rib 150 is a plane.

Figure 6 illustrates a schematic view of two stent members 100 stacked. As shown in figure 6, the first support ribs 150 of the lower stent member 100 may rest against the inner side of the upper stent member 100 when the arc-shaped members are stacked together, thereby effectively maintaining the arc-shape of the upper stent member 100. The above-mentioned height direction refers to a stacking direction of the stent members 100.

The number of first support ribs 150 may be one or more, wherein the first support ribs 150 are disposed at or near the top of the arc, and each first support rib 150 extends vertically upward, i.e., the support rib is perpendicular to the plane of projection of the stent member.

The stent member 100 comprises two or more second struts 160 disposed at the location of the left and right connecting

flanges

131 and 132, respectively, the second struts 160 interfacing the left and right connecting

flanges

131 and 132 with the member body 110, the second struts 160 of the lower stent member serving to support the left and right connecting

flanges

131 and 132 of the upper stent member when the two stent members are stacked. The two or more second support ribs 160 are aligned along the longitudinal direction X of the member body 110, and extend in the circumferential direction of the member body 110.

In the case where the left and right connecting

flanges

131 and 132 protrude outward, the height of the second support rib 160 is higher than the height of the left and right connecting

flanges

131 and 132, and the upper surface of the second support rib 160 may be a plane, i.e., the side of the second support rib 160 away from the left and right connecting

flanges

131 and 132 is a plane. Here, the direction of the height of the left and right connecting

flanges

131 and 132 refers to the stacking direction, that is, the height of the second support rib 160 is higher than the height of the left and right connecting

flanges

131 and 132 in the stacking direction.

In the case where the second support ribs 160 are higher than the left and right connecting

flanges

131, 132, the second support ribs 160 of the lower culvert member 100 may abut against the left and right connecting

flanges

131, 132 of the upper culvert member 100 when two culvert members 100 are stacked, thereby supporting the upper culvert member 100 by the lower culvert member 100.

In the above figures and description, the ribs between the ridges are arranged consecutively in the longitudinal direction. Other arrangements may be used in this application.

Fig. 7 to 11 show schematic views of the arrangement direction of the reinforcing beads.

As shown in fig. 6, the reinforcing beads between the ridges are not arranged continuously in the longitudinal direction but are arranged at intervals. By continuous arrangement is meant that there is an arrangement in each groove for each bead. By spaced arrangement is meant that for each bead there is not an arrangement in each groove but one or more grooves, one groove apart being shown in figure 7. The reinforcing ribs 140 are arranged on the outer arc surface of the member body 110, are provided in the grooves 112 between the adjacent ridges 111, are connected to the adjacent ridges 111, and a plurality of reinforcing ribs 140 are provided in the circumferential direction between the respective ridges. Further, the reinforcing ribs provided in fig. 7 are equally separated. The arrangement of the reinforcing ribs shown in fig. 7 is in the longitudinal direction, which may reinforce the strength of the stent member 100 in the longitudinal direction.

Figure 8 shows the orientation of the ribs between the ridges at an angle to the longitudinal direction. The reinforcing beads 140 are disposed on the outer arc surface of the member body 110, are disposed in the grooves 112 between the adjacent ridges 111, and are connected to the adjacent ridges 111. By this arrangement it is possible to at least increase the strength of the stent member in the direction of arrangement of the reinforcing bars. In fig. 8, there is an arrangement in each groove for each bead, but it could be arranged spaced apart by one or more grooves, and the beads could be made end to end.

Figure 9 shows another form of arrangement of reinforcing bars. The arrangement direction of the reinforcing ribs among the bulges forms a certain angle with the longitudinal direction, and each reinforcing rib forms a certain radian. The reinforcing beads 140 are disposed on the outer arc surface of the member body 110, are disposed in the grooves 112 between the adjacent ridges 111, and are connected to the adjacent ridges 111. By this arrangement it is possible to at least increase the strength of the stent member in the direction of arrangement of the reinforcing bars. In fig. 9, there is an arrangement in each groove for each bead, but it may also be arranged spaced apart by one or more grooves. It should be noted that although the shape of the ribs is shown in fig. 9 in the form of circular arcs, the ribs may also be in the form of other arcs.

Figure 10 shows yet another form of arrangement of reinforcing bars. The ribs may include both ribs in the longitudinal direction and ribs at an angle to the longitudinal direction. The reinforcing beads 140 are disposed on the outer arc surface of the member body 110, are disposed in the grooves 112 between the adjacent ridges 111, and are connected to the adjacent ridges 111. By this arrangement it is possible to at least increase the strength of the stent member in the direction of arrangement of the reinforcing bars. In fig. 10 there is an arrangement in each groove for each bead, but it may also be arranged spaced apart by one or more grooves.

Figure 11 shows yet another form of reinforcing bar arrangement. The reinforcing ribs include both reinforcing ribs in the longitudinal direction and reinforcing ribs which are at an angle to the longitudinal direction and are arc-shaped. The reinforcing beads 140 are disposed on the outer arc surface of the member body 110, are disposed in the grooves 112 between the adjacent ridges 111, and are connected to the adjacent ridges 111. By this arrangement it is possible to at least increase the strength of the stent member in the direction of arrangement of the reinforcing bars. In fig. 11 there is an arrangement in each groove for each bead, but it may also be arranged spaced apart by one or more grooves.

The present disclosure also provides a cylindrical stent assembly 300 comprising stent components as described above assembled into a circumferentially closed cylindrical stent assembly by connecting the left connecting flange of one stent component to the right connecting flange of another stent component in more than two stent components.

Figure 12 illustrates an example cross-sectional view of a stent assembly 300 constructed from three stent members.

May include stent members 100 and anchors 200 of the form described above. To construct the stent assembly 300, the fixture 200 is used to connect together the left and right connecting

flanges

131, 132 of the curved stent members 100, wherein the fixture may include a connecting bolt 201, a connecting nut 202, and a connecting washer 203. And the attachment bolts 201 pass through the respective attachment mechanisms, such as the attachment holes, of the left and

right attachment flanges

131 and 132. Finally, the cylindrical culvert pipe assembly with the circumferential closing is assembled.

It will be appreciated by those skilled in the art that two stent members may also be used to construct the stent assembly 300, although in cases where a larger diameter of the stent is desired, more than three stent members may be used to construct the stent assembly 300, such as shown in figures 13-16, where figures 13-16 illustrate the formation of the stent assembly 300 from two, five, six, and ten stent members, respectively.

In the constructed culvert assembly 300, the number of culvert members is N, wherein N is more than or equal to 2, the radian of the arc-shaped cross section of each culvert member is 360 DEG/N, and the left connecting flange of one culvert member and the right connecting flange of another culvert member in the N culvert members are connected to assemble the cylindrical culvert assembly 300 with a closed circumferential direction.

In accordance with the present disclosure, a cylindrical stent 500 is also provided, which is constructed by sequentially connecting the cylindrical stent assemblies 300 described above in the longitudinal direction. Alternatively, one cylindrical stent assembly 300 may be joined to another cylindrical stent assembly 300 circumferentially offset by a predetermined angle to assemble a cylindrical stent 500. When connected in series longitudinally, the front and rear assemblies are connected at a circumferentially offset angle θ, as shown in figure 17, for example, which may enhance the support strength of the stent in the circumferential direction and avoid stress concentration and transmission in the longitudinal direction of the tube, which may have a tearing effect.

Also, in the above description, an angle between two adjacent mounting holes 190 is θ 1, and an angle θ 2 between the outermost mounting hole 190 of the culvert member 100 and the edge of the culvert member 100 is 1/2 of the angle θ 1 between two adjacent mounting holes 190. Thus, when connected longitudinally, the front and rear assemblies may be offset by an angle θ equal to or a multiple of the angle θ 1 between the mounting holes.

The culvert pipe component and the culvert pipe according to the present disclosure are made of high performance SMC composite material into corrugated plate shape, and are used in the fields of culvert channels and the like, and mainly have the following advantages.

The product structure designability is strong, and the product surface has set up fore-and-aft strengthening rib, and the continuous glass fiber sheet that can use directional reinforcing in the molding process, product intensity is high, and stability is good, and engineering antidetonation rank is high, because strengthening rib and ripple structure, can effectively resist engineering compression deformation and differential settlement.

There is also provided, in accordance with another embodiment of the present disclosure, a duct member integrally made of SMC composite material through a molding process, including: a member body having a longitudinal direction, a cross-section orthogonal to the longitudinal direction being selected from an arc, a flat plate, or a combination thereof, the member body having a plurality of ridges and grooves alternately arranged in the longitudinal direction; a front connection flange provided at a longitudinal front end of the member body and protruding outward; a rear connection flange provided at a rear end of the member body in a longitudinal direction and protruding outward; and the reinforcing ribs are arranged on the outer arc surface of the member body, arranged in the grooves between the adjacent bulges and connected with the adjacent bulges, wherein a plurality of reinforcing ribs are arranged between the bulges and in the circumferential direction.

Among the culvert members, those that differ from the above-described culvert members in that, because the culvert needs to be formed, the members that form them include culvert members of the shape necessary for forming the culvert of a predetermined cross-sectional shape, and may include, for example, arc-shaped, flat-plate-shaped, combinations thereof, and the like. In addition, the front connecting flange, the rear connecting flange, the left connecting flange and the right connecting flange can be arranged or not arranged according to actual needs.

In the following, for the sake of brevity, only the differences will be described.

As shown in fig. 18, the stent 600 may be assembled by curved stent members and planar stent members, and the arrangement of each stent member may be the same as that of the stent member described above except for the limitation of the shape, and thus, the description thereof will be omitted. And the circumferential connection and the longitudinal connection may be the same.

The present disclosure also provides a bypass assembly comprising more than two bypass members.

The present disclosure also provides a duct, which is formed by the duct components which are sequentially connected in the longitudinal direction.

In the technical scheme, the SMC composite material process has better fluidity in the mould pressing process, the side groove of the sealing structure can be directly subjected to mould pressing forming, the precision is +0.1mm, and the rubber gasket is used for sealing, so that the effect of no leakage of water can be achieved.

The composite material has unique corrosion resistance, does not need outer layer galvanizing, anticorrosion coating brushing and the like for anticorrosion, and has a qualitative leap in the anticorrosion performance compared with the prior steel corrugated pipe culvert pipe technology.

The composite culvert pipe is integrally formed by adopting a die pressing process, the mirror surface effect can be achieved during the manufacturing of the die, and the surface of a product after die pressing can also achieve the mirror surface effect, so that the friction force is reduced. The surface hardness of the SMC composite material pipeline is generally 45-55 Babbitt hardness, which is lower than that of a steel pipe and a cement pipeline, but the steel pipe is generally required to be provided with an anticorrosive coating inside the pipeline when a liquid medium is conveyed, and the surface hardness of the SMC composite material pipeline is lower than that of the SMC composite material pipeline no matter the steel pipe is coated with tar or epoxy resin or asphalt. For the SMC composite material culvert, the inner surface of the pipeline is very smooth, meanwhile, the SMC composite material is extremely corrosion-resistant, the surface is not scaled after long-term use, and the surface roughness is unchanged after long-term use, so that the friction coefficient of the inner wall of the pipeline is relatively small. Compared with the friction resistance test of a cement mortar lining steel pipe, an epoxy resin and asphalt coating steel pipe and a coal tar enamel coating steel pipe, the wear thickness of the SMC composite culvert pipe is obviously smaller than that of other pipelines.

The SMC composite culvert pipe has low construction cost and transportation cost, the construction cost of the SMC composite culvert pipe is far lower than the cost of reinforced concrete, and the construction cost of the SMC composite culvert pipe is lower than the cost of a corrugated steel plate structure by more than 20 percent.

Compared with a steel culvert pipe, the SMC composite culvert pipe has low production energy consumption, does not need anti-corrosion procedures such as zinc plating and the like, and belongs to energy-saving and environment-friendly materials.

The SMC composite culvert pipe has light weight and the density of 1.9g/cm³And the steel 1/4 is only used, so that the container can be stacked in the transportation process and the transportation cost is low.

The SMC composite culvert pipe has light weight, high precision of products after mould pressing, difficult deformation in the transportation and storage process, and convenient construction and installation relative to the steel culvert pipe.

The SMC composite culvert pipe product is high in size precision and not prone to deformation, the size of the assembled culvert pipe is better consistent with the design size, and engineering safety hidden dangers cannot be caused by size deformation.

The culvert pipe component in the disclosure can be integrally formed, adopts a special steel mould by a special hydraulic press, adopts the steel mould and the special hydraulic press through high-temperature high-pressure one-time compression molding, is produced in a modular mode, has high product size accuracy, can reach +/-0.1 mm, is easy to guarantee the production quality, is high in production speed, does not need to bind reinforcing steel bars, and does not need a maintenance period.

Further, the stent members in the present disclosure may have a width greater than 1 meter, a length greater than 2 meters, a thickness greater than 6 millimeters, a height of the protuberances greater than 20 millimeters, a protuberance spacing greater than 100 millimeters, and so forth.

SMC composite stents according to the present disclosure may provide sufficient strength, as will be verified in the following manner.

Stress analysis of SMC composite culvert

Calculating parameters:

the automobile load grade: highway grade I

Environment category: class I environment

Inner diameter D of SMC composite culvert pipe is 2000mm

Wall thickness delta of SMC composite culvert pipe is 8mm

The wavelength q of the ridges and grooves is 150mm

Height (wave height) h of the groove is 50mm

The depth H of the filled soil is 500mm

The length L of the culvert pipe made of SMC composite material is 20m

Fill volume weight gamma₁＝20kN/m³

SMC composite culvert pipe volume weight gamma₂＝20kN/m³

SMC composite material culvert pipe elastic modulus E is 16GPa

(II) load calculation

1. Dead load calculation

Vertical pressure of fill (soil pressure):

P₁＝γ₁×H＝20×500/1000＝10kPa。

self-weight pressure of SMC composite culvert pipe:

P₂＝γ₂×t＝20×5.0/1000＝0.1kPa

therefore load P_H＝P₁+P₂＝10+0.1＝10.1kPa

2. Live load computing

Calculating the load of the vehicle according to the regulations of item 4.3.1 and item 4.3.2 of the general Specification for designing bridges and culverts of highways; when the thickness of the filling is greater than or equal to 0.5m, the culvert does not consider the impact force.

According to the general Specification for designing bridges and culverts on roads, No. 4.3.4:

when the vertical soil pressure caused by the vehicle load on the top of the culvert is calculated, the wheels are distributed downwards at an angle of 30 degrees according to the edge of the landing area.

Referring to the design example of the small bridges and culverts of the highway,

the width a of the load distribution is 2.055+2 × 0.5 × tan30 ° -2.632 m

The calculated load distribution length b is 12.8+2 × 0.5 × tan30 ° -13.377 m

The vehicle load is 550kN multiplied by 2 which is 1100kN

The live load is therefore calculated as:

P_Q＝(2×550)/(a×b)＝1100/(2.632x13.377)＝31.243kPa

3. load combination

The combination of action and effect is carried out according to the general Specification for designing bridges and culverts on roads, 4.1.6

Carrying capacity state combination:

P_ud＝2×P_H+2×P_Q＝2×10.1+2×31.243＝82.686kPa

combination of the bearing capacity limit states:

P_ud＝1.2×P_H+1.2×P_G＝1.2×10.1+1.2×31.243＝49.612kPa

normal use limit state combinations:

short term combination P_sd＝P_H+0.7P_G＝10.1+0.7×31.243＝31.97kPa

Long term combination P_ld＝P_H+0.4P_G＝10.1+0.4×31.243＝22.597kPa

(III) checking calculation of culvert pipe strength of SMC composite material

1. Corrugated board allowable stress [ sigma ]

The minimum bending strength of the SMC composite material is 300MPa, the SMC composite material has no yield strength, the safety coefficient is calculated according to 4.0, and the allowable stress [ sigma ] is as follows:

[σ]＝300/4＝75MPa。

2. result of checking calculation

According to the specification in appendix A.2 of the State technical Standard "general technical Condition for expansion joints for Metal bellows" (GBT 12777-2008):

in formula 1: p is the load effect (MPa); d2000 (mm); δ -8 (mm); n is the number of material layers of 1; l20000 (mm); e16000 (MPa); cwb is effective coefficient, which is 1.0; the relevant parameters such as Lc, Dc, etc., which are indexed by C, are relevant parameters for strengthening the collar and are not involved in this calculation.

Calculating the bearing capacity limit state required by the culvert pipe:

the SMC composite culvert had a strength [ σ ] of 75MPa with a safety factor of 4.0.

The 10.37MPa is less than 75MPa, and the SMC composite culvert meets the requirements through strength checking.

In formula 2: kr is the circumferential stress coefficient, and is taken as 1.02; q is the wave pitch (mm); dm is the average diameter Dm of the culvert pipe of the SMC composite material, which is D + h + delta (mm); h is the wave height (mm); acu is the numerical value of the metal cross-sectional area (mm) of a single corrugation²)，Acu＝δ(0.571q+2h)。

The calculation shows that 8.76MPa is less than 75MPa, and the SMC composite material culvert meets the requirements through strength checking.

3. Conclusion of intensity checking

From the above calculations, the strength of the SMC composite culvert of the present disclosure meets the requirements by checking the strength in both the load-bearing capacity limit state and the normal use limit state.

In summary, the present disclosure includes at least the following concepts.

Concept 1. a culvert member integrally formed from SMC composite material via a molding process, comprising:

the structural member comprises a structural member body, a connecting piece and a connecting piece, wherein the structural member body is provided with a longitudinal direction, and the cross section orthogonal to the longitudinal direction is in an arc shape;

a front connection mechanism disposed at a longitudinal front end of the member body; and

a rear connection mechanism disposed at a rear end in a longitudinal direction of the member body,

the front connecting mechanism and the rear connecting mechanism are smaller than or equal to the overall dimension of the component body, and when more than two culvert components are connected in front and at the back to form a culvert pipe, the rear connecting mechanism of the previous culvert component is connected with the front connecting mechanism of the next culvert component.

Concept 2. the front attachment mechanism is a front attachment flange and the rear attachment mechanism is a rear attachment flange that project inwardly relative to the member body to attach the front and rear culvert members within the interior of the culvert.

Concept 3. the front connecting flange is provided with a front mounting mechanism and the rear connecting flange is provided with a rear mounting mechanism, and the connection of the front culvert pipe component and the rear culvert pipe component is realized through the front connecting mechanism and the rear connecting mechanism.

Concept 4. the front mounting mechanism and the rear mounting mechanism are respectively provided with mounting holes which are arranged on the front connecting flange and the rear connecting flange.

And 5, mounting holes of the front connecting flange and the rear connecting flange are distributed at equal intervals.

Concept 6 further comprises a left side connection mechanism and a right side connection mechanism, wherein when more than two culvert members are circumferentially connected into a culvert, the right side connection mechanism of one culvert member on the left side is connected with the left side connection mechanism of one culvert member on the right side.

Concept 7, the left connecting mechanism is a left connecting flange, the right connecting mechanism is a right connecting flange, the left connecting flange and the right connecting flange protrude outwards or inwards relative to the component body, and connecting holes are formed in the left connecting flange and the right connecting flange.

Concept 8 the culvert member further includes reinforcing ribs disposed on the outer and/or inner surface of the member body, disposed between and connected to adjacent protuberances, and a plurality of reinforcing ribs disposed circumferentially between each protuberance.

Concept 9. each of the reinforcing ribs is orthogonal to each of the ridges.

Concept 10. the ribs between the ridges are arranged either continuously in the longitudinal direction or spaced apart.

Concept 11. the cross-sectional shape of the ridge in the longitudinal direction is a semicircle, or a portion of a semicircle, and the cross-sectional shape of the groove in the longitudinal direction is a semicircle, or a portion of a semicircle; or the cross-sectional shape of the ridges and grooves in the longitudinal direction is sinusoidal.

Concept 12 the culvert members further include support ribs that support an upper culvert member by support ribs of a lower culvert member when two culvert members are stacked one on top of the other, the support ribs being disposed at the longitudinal forward and rearward ends of the member bodies and projecting outwardly, wherein at least one of the support ribs is circumferentially disposed along the longitudinal forward and rearward ends.

Concept 13. the support ribs are perpendicular to the plane of projection of the culvert members.

Concept 14 the SMC composite that is press-molded to form the stent member comprises at least an upper layer of continuous glass fibers consisting of bundles of long glass fibers oriented in the longitudinal direction and a lower layer of continuous glass fibers consisting of bundles of long glass fibers intersecting the longitudinal direction.

Concept 15. a stent assembly comprising the stent components described above, assembled into a circumferentially closed stent assembly by connecting the left side connection of one stent component to the right side connection of another stent component in two or more stent components.

Concept 16. the number of the culvert members is N, wherein N is more than or equal to 2, the radian of the arc-shaped cross section of each culvert member is 360 DEG/N, and the left connecting mechanism of one culvert member and the right connecting mechanism of another culvert member in the N culvert members are connected to assemble the circumferentially closed culvert assembly.

Concept 17. a stent is formed by connecting stent components as described above in series in the longitudinal direction.

Concept 18. one stent assembly is joined to another stent assembly circumferentially offset by a predetermined angle for assembly into a stent.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A culvert member, wherein the culvert member is integrally formed from SMC composite material via a molding process, comprising:

2. The culvert member of claim 1, wherein the front connection means is a front connection flange and the rear connection means is a rear connection flange, the front and rear connection flanges projecting inwardly relative to the member body to connect the front and rear culvert members inside the culvert.

3. The stent component of claim 2, wherein the front attachment flange is provided with front attachment means and the rear attachment flange is provided with rear attachment means, the connection of the front and rear stent components being achieved by the front attachment means and the rear attachment means.

4. The culvert member of claim 3, wherein the front mounting means and the rear mounting means are provided with mounting holes opened on the front connection flange and the rear connection flange, respectively.

5. The culvert member of claim 4, wherein the mounting holes of the front and rear connection flanges are equally spaced.

6. The culvert member of any one of claims 1 through 5, further comprising a left side connection means and a right side connection means, wherein when more than two culvert members are circumferentially connected into a culvert, the right side connection means of one culvert member on the left side connects with the left side connection means of one culvert member on the right side.

7. The culvert member of claim 6, wherein the left side connection means is a left side connection flange, the right side connection means is a right side connection flange, and the left and right side connection flanges protrude outward or inward with respect to the member body, and the left and right side connection flanges have connection holes opened thereon.

8. The stent component of any of claims 1 to 5, further comprising reinforcing ribs disposed on the outer and/or inner surface of the component body, disposed between and connected to adjacent protuberances, and a plurality of reinforcing ribs disposed circumferentially between each protuberance.

9. The stent member of claim 8, wherein each of the reinforcing ribs is orthogonal to each of the protuberances.

10. The stent member of claim 8, wherein the ribs between the protuberances are disposed either continuously in the longitudinal direction or in spaced apart relation.

11. The stent member of any of claims 1 to 5,

the cross-sectional shape of the ridge in the longitudinal direction is a semicircle or a part of a semicircle, and the cross-sectional shape of the groove in the longitudinal direction is a semicircle or a part of a semicircle; or

The ridges and grooves have a sinusoidal cross-sectional shape in the longitudinal direction.

12. The stent component of any of claims 1 through 5, further comprising support ribs that support an upper stent component by support ribs of a lower stent component when two stent components are stacked one on top of the other, the support ribs being disposed at a longitudinal forward end and a longitudinal rearward end of the component body and protruding outward, wherein at least one of the support ribs is circumferentially disposed along the longitudinal forward end and the longitudinal rearward end.

13. The stent component of claim 12, wherein the support ribs are perpendicular to a plane of projection of the stent component.

14. The stent member of any of claims 1 to 3, wherein the SMC composite material that is press-molded to form the stent member comprises at least an upper layer of continuous glass fibers consisting of bundles of long glass fibers oriented in the longitudinal direction and a lower layer of continuous glass fibers consisting of bundles of long glass fibers intersecting the longitudinal direction.

15. A stent assembly comprising the stent component of claim 6 or 7, wherein the circumferentially closed stent assembly is assembled by connecting the left connecting means of one stent component to the right connecting means of another stent component in more than two stent components.

16. The stent assembly of claim 15, wherein the number of stent members is N, where N ≧ 2, the arc of the arcuate cross-section of each stent member is 360 °/N, the left connecting mechanism of one of the N stent members being joined to the right connecting mechanism of another stent member to assemble the circumferentially closed stent assembly.

17. A stent formed from stent assemblies as defined in claim 15 or 16 joined in series in the longitudinal direction.

18. The stent of claim 17, wherein one stent assembly is joined to another stent assembly circumferentially offset by a predetermined angle for assembly into the stent.