TWM525972U - FRP template structure - Google Patents

Description

An FRP template structure

This creation is about an FRP template structure, especially a stencil structure made of FRP material.

The invention of cement has been about one hundred years. Since the invention of cement, cement mortar has been used as the adhesive material between bricks to build brick houses instead of clod houses or wooden bamboo houses. However, brick building anti-lateral force The ability is poor, so there is the invention of smooth round section steel; since then, the combination of concrete and round steel has been used to exert the compressive and tensile properties of the two materials, thus changing the height of the building structure and the bridge. The span has only been seven or eighty years old.

As scientists continue to research and invent, promote the development of engineering mechanics theory and application, after the change of bamboo steel bar instead of round steel bar and steel material manufacturing elements, it will improve the grip strength of steel and concrete, and the change of cement and aggregate ratio. The improvement of the mechanical properties of reinforced concrete is the widespread adoption of today's reinforced concrete structures and the emergence of high-rise buildings. Its history is about 30 years.

The stencil refers to a material used to form concrete, including the common stencils of wood molds, steel molds and other materials. The project includes the design, fabrication and installation of stencils, supports, braces, and required fixed objects. , maintenance and dismantling, as well as anchor bolts, support rafts, anchors, embedded objects, etc. embedded in concrete. It must have sufficient strength to support the pressure of the poured concrete and the applied load. The construction should be tight and smooth, without leakage and conform to the design shape, location, slope and ease of removal.

In general, the template is commonly used as a "nail template". This is because the old wooden planks were first nailed to the wooden poles with iron nails, and they became the long-board structural unit of the side. One by one, the wooden poles and the nails are nailed one by one. In this configuration, a single wooden strip is often damaged when the stencil is removed, and must be repaired or replaced with a new material at the next use, although, in terms of materials, 撬It is cheaper to change the wooden slats, but the total cost of maintenance will not be more economical. At the same time, because the surface of such stencils is not flat, it must be repaired with cement, and the total cost is high.

In order to overcome the problem of the wood mold, the manufacturer uses the steel mold to work. Although the surface of the steel mold is relatively flat, the steel mold itself is self-contained, so it will take a lot of manpower and material resources during transportation, transportation and local assembly. The working hours of the template assembly are all known for the project, so if the steel plate is used for work, it will affect the working hours of the entire project. In addition, engineering with steel stencils often requires high-altitude operations and increases the risk of the entire project.

Therefore, if a FRP stencil with lightness, high strength and smooth surface can be designed, its characteristics can overcome the problems of uneven surface, slow assembly speed, troublesome handling, danger of working at height, high cost, etc., so the FRP template will Can replace wood molds and steel molds, so this creation should be an optimal solution.

An FRP template structure includes: a plurality of FRP mode versions, comprising a layer of FRP plates and a layer of FRP grids; and a plurality of connecting members contacting one end of any two adjacent FRP module versions; The locking component passes through the connecting member and is locked on one end of the FRP die to enable the connector to connect to any two adjacent FRP die versions, and surrounds the FRP module by the plurality of FRP modules. The resulting space can be used for pouring concrete.

In a preferred embodiment, the FRP plate of the FRP molded version is an FRP transparent or translucent plate.

In a preferred embodiment, the locking element passes through the connecting member and is locked to one end of the FRP grid of the FRP molded version.

In a preferred embodiment, the locking element passes through the connecting member and is locked to one end of the FRP plate of the FRP molded version.

In a preferred embodiment, the connector is an L-shaped connector.

In a preferred embodiment, the width of the FRP panel is equal to, smaller than, or greater than the width of the FRP grid.

Another implementation structure of the present invention includes: a plurality of FRP modular versions, which are an L-shaped structure, and the FRP modular version system includes an L-shaped FRP plate, and the two outer sides of the L-shaped FRP plate Each has an FRP grid; a plurality of connecting members are in contact with one end of any two adjacent FRP mold versions; a plurality of locking elements are passed through the connecting member and locked to the FRP One end of the mold version is configured to enable the connection member to connect to any two adjacent FRP mold versions, and the space formed by surrounding the plurality of FRP mold versions can be used for pouring concrete.

In a preferred embodiment, the L-shaped FRP plate of the FRP mold version is an L-shaped FRP transparent or translucent plate.

In a preferred embodiment, the locking element passes through the connecting member and is locked to one end of the FRP grid of the FRP molded version.

In a preferred embodiment, the locking element passes through the connecting member and is locked to one end of the L-shaped FRP plate of the FRP molded version.

In a preferred embodiment, the connector is an L-shaped connector.

In a preferred embodiment, the width of any of the outer sides of the L-shaped FRP plate is equal to, smaller than, or greater than the width of the FRP grid.

Another implementation structure of the present invention includes: a plurality of FRP modular versions, which are an L-shaped structure, and the FRP modular version system includes an L-shaped FRP plate, and the two outer sides of the L-shaped FRP plate Each of the L-shaped FRP ribs has a plurality of L-shaped FRP ribs, and the two outer sides of the L-shaped FRP ribs respectively extend with a connecting portion, and the L-shaped FRP ribs of any two adjacent FRP molded versions The connecting portions are stacked in contact with each other; a plurality of locking members are passed through and locked to the joints of any two L-shaped FRP ribs stacked on each other for connecting any two adjacent FRP templates The body, and the space formed by surrounding the plurality of FRP mold bodies, can be used for pouring concrete.

In a preferred embodiment, the L-shaped FRP plate of the FRP mold version is an L-shaped FRP transparent or translucent plate.

In a preferred embodiment, the connecting portion on the L-shaped FRP rib of any one of the FRP molded versions is disposed at the upper end of the outer side of the L-shaped FRP rib, and the other adjacent FRP molded version The connection on the L-shaped FRP rib must then be placed at the lower end of the outer side of the L-shaped FRP rib so that the connections on the L-shaped FRP ribs of two adjacent FRP molded versions can be stacked in contact.

In a preferred embodiment, the connecting portion on the L-shaped FRP rib of any one of the FRP molded versions is disposed at the lower end of the outer side of the L-shaped FRP rib, and the other adjacent FRP molded version The joints on the L-shaped FRP ribs must then be placed at the upper end of the outer side of the L-shaped FRP rib so that the joints on the L-shaped FRP ribs of two adjacent FRP molded versions can be stacked in contact.

Another implementation structure of the present invention includes: a plurality of FRP modular versions, which are half-cylindrical, and the FRP modular version system comprises a semi-circular FRP plate, and the two outer sides of the semi-circular FRP plate Each of the upper systems has a plurality of semi-circular FRP ribs, and the two outer sides of the semi-circular FRP ribs respectively extend a connecting portion, and the semi-circular shape of any two adjacent FRP molded versions The connecting portions on the FRP ribs are stacked in contact with each other; a plurality of locking elements are passed through and locked to the joints of any two semi-circular FRP ribs stacked on each other for connecting any two Adjacent FRP mold versions, and the space formed by surrounding the FRP mold versions can be used for pouring concrete.

In a preferred embodiment, the semi-circular FRP plate of the FRP molded version is a semi-circular FRP transparent or translucent plate.

In a preferred embodiment, the connecting portion on the semicircular FRP rib of any of the FRP molded versions is disposed at the upper end of the outer side of the semicircular FRP rib, and the other adjacent FRP template The connection on the semi-circular FRP rib of the body must be placed at the lower end of the outer side of the semi-circular FRP rib so that the joints on the semi-circular FRP ribs of two adjacent FRP molded versions can be stacked contact.

In a preferred embodiment, the connecting portion on the semicircular FRP rib of any of the FRP molded versions is disposed at the lower end of the outer side of the semicircular FRP rib, and the other adjacent FRP template The connection on the semi-circular FRP rib of the body must be placed at the upper end of the outer side of the semi-circular FRP rib so that the joints on the semi-circular FRP ribs of two adjacent FRP molded versions can be stacked contact.

Other technical contents, features, and effects of the present invention will be apparent from the following detailed description of the preferred embodiments.

Please refer to FIG. 1A to FIG. 1C , which is a schematic exploded view of a first embodiment of the FRP template structure, a schematic view of the first embodiment of the three-dimensional structure, and a first embodiment of the first embodiment. The FRP template structure 1 is known from the figure. The FRP module version 11 and the plurality of locking elements 13 are included in the figure. The FRP mode version 11 is adhered by a layer of FRP board 111 and a layer of FRP grid 112 (depending on The FRP mode version 11 is designed such that the width of the FRP board 111 can be equal to or greater than the width of the FRP grid 112. In order to allow a plurality of FRP mode versions 11 to form a certain space, any two adjacent ones A connecting member 12 is disposed at one end of the FRP molded version 11 respectively, and the connecting member 12 is shaped into a long L shape, and then passes through the connecting member 12 through a plurality of locking members 13 and is locked thereto. On the FRP grid 112, in the present embodiment, four FRP mold versions 11 are fixed by using four connecting members 12, and the formed rectangular space is surrounded by the FRP plates 111 of the plurality of FRP mold versions 11. Can be used to pour concrete ;

In addition, although the four FRP mode versions 11 can constitute a rectangular space, the more the FRP mode version 11 can constitute the more polygonal spaces of different shapes.

The FRP plate 111 is in the form of a flat plate. When the concrete is poured, the concrete can extend down the FRP plate 111. Therefore, after the concrete is hardened, the surface can be kept flat, and the FRP plate 111 is an FRP transparent or translucent plate. Similarly, when pouring concrete, the concrete pouring can be observed through the FRP plate 111.

The width of the FRP board 111 can also be designed to be larger than the width of the FRP grid 112. As shown in FIGS. 2A-2C, when the four FRP mold versions 11 are surrounded by a rectangular space, the connecting member 12 is in contact. On the outer side of the adjoining portion of any two adjacent FRP molded versions 11, and through a plurality of locking elements 13 through the connecting member 12 and locked to the FRP board 111, through the FRP templates The rectangular space formed by the FRP plate 111 of the body 11 can also be used for pouring concrete.

In addition, the FRP mode version of the FRP stencil structure can also be designed as an L-shaped structure. As shown in FIGS. 3A-3C, the FRP modulo version 21 of the FRP stencil structure 2 includes an L-shaped FRP plate 211, and the L-shaped FRP. Each of the two outer side faces of the plate 211 has an FRP grating 212. In order to allow a plurality of FRP mode versions 21 to form a certain space, the two adjacent FRP mode versions 21 are respectively disposed at one end adjacent to each other. There is a connecting member 22, which is formed in the shape of a long L, and then passes through the connecting member 22 through a plurality of locking members 23 and is locked on the FRP grill 212, in this embodiment. In view of the above, the two FRP molded version bodies 21 are fixed by using two connecting members 22, and the rectangular space formed by the FRP plates 211 passing through the plurality of FRP molded version bodies 21 can be used for pouring concrete.

In addition, the FRP stencil structure may not use a grid plate. As shown in FIGS. 4A-4D, the FRP stencil body 31 of the FRP stencil structure 3 is designed as an L-shaped structure, and the FRP modulo version 31 includes an L-shaped FRP plate. 311, the two outer side faces of the L-shaped FRP plate 311 each have a plurality of L-shaped FRP ribs 312, and the two outer side edges of the L-shaped FRP ribs 312 respectively have a connecting portion extending therefrom. 3121, and the connecting portion 3121 on the L-shaped FRP rib 312 of any two adjacent FRP molded version bodies 31 is stacked on top of each other;

In the present embodiment, the rectangular space formed by surrounding the two L-shaped FRP plates 311 can be used for pouring concrete, but a plurality of locking elements 32 must be used, which are passed through and locked to any two stacked on each other. The connecting portion 3121 on the L-shaped FRP rib 312 is used to connect any two adjacent FRP molded versions 31, and the L-shaped FRP rib 312 of any of the FRP molded versions 31 is known from FIG. 4C. The upper connecting portion 3121 is disposed at the upper end of the outer side edge of the L-shaped FRP rib 312 (or is disposed at the lower end), and the other adjacent FRP molded version 31 is formed on the L-shaped FRP rib 312. The connecting portion 3121 must be disposed at the lower end of the outer side edge of the L-shaped FRP rib 312 (or at the upper end) so that the connecting portion 311 on the L-shaped FRP rib 312 of the two adjacent FRP molded versions 31 is provided. Ability to stack contacts.

In addition, the FRP stencil structure can also be designed as a cylindrical structure. As shown in FIGS. 5A-5D, the FRP stencil version 41 of the FRP stencil structure 4 is a semi-cylindrical structure, and the FRP modulo version 41 is semicircular. The FRP plate 411 has two semicircular FRP ribs 412 on each of the two outer sides of the semicircular FRP plate 411, and the outer side edges of the semicircular FRP ribs 412 are respectively A connecting portion 4121 is extended, and the connecting portions 4121 on the semicircular FRP ribs 412 of any two adjacent FRP molded versions 41 are stacked one on top of the other;

In the present embodiment, the cylindrical space formed by the two semi-circular FRP plates 411 can be used for pouring concrete, but it is also necessary to use a plurality of locking elements 42 to pass through and lock in any two. The connecting portion 4121 on the semi-circular FRP ribs 412 stacked on each other is used to connect any two adjacent FRP molded versions 41. Further, as shown in FIG. 5C, the semi-circular shape of any of the FRP molded versions 41 is The connecting portion 4121 on the FRP rib 412 is disposed at the upper end of the outer side edge of the semicircular FRP rib 412 (or is disposed at the lower end), and the other half of the FRP molded version 41 is semicircular FRP. The connecting portion 4121 on the rib 412 must be disposed at the lower end of the outer side edge of the semicircular FRP rib 412 (or at the upper end) so that the semicircular FRP ribs of the two adjacent FRP molded versions 41 are provided. The connecting portion 4121 on the portion 412 can be stacked in contact;

In addition, if the type 3 (4A~4D) and the type 4 (5A~5D), the FRP template is formed by lateral locking, it cannot be provided as an FRP template using the FRP grille. Vertical load carrying capacity. Therefore, the FRP stencil of this type must be configured with a vertical FRP column member as appropriate. The vertical FRP member is set up with a circular FRP template as a stand. Since the FRP stencil structure 4 has no vertical struts, there is a fear that the problem of insufficient vertical strength occurs, and the dumping occurs.

Therefore, for the above situation, the column 5 (FRP column member) must be used to avoid dumping, and as shown in FIGS. 6A and 6B, the three columns 5 are positioned on the outer surface of the FRP die body 41, and the bottom of the column 5 is at the bottom end. Further extending a bracing 51 for resisting the FRP stencil structure 4, and in FIG. 6B, the FRP stencil structure 4 is fixed by using three orientation posts 5 and braces 51; As shown, the FRP stencil structure can be secured using four orientation posts 5 and braces 51.

In addition, in addition to the quadrilateral of FIG. 1B, a hexagonal shape, an octagonal shape or other irregular shape may be formed, as shown in FIG. 8, which is a hexagonal structure;

In addition, as shown in FIG. 9, the FRP grid 112 can also be formed to form an irregular shape, and the irregular shape is disposed at one end of each of the two adjacent FRP mold versions 11 respectively. The connecting member 12 is fixedly locked to the side edge of the FRP die body 11 through the locking component 13 , and if the locking component 13 is a fixed key, the FRP grid can be adjusted. The angle between the grid 112 and the FRP grid 112.

The FRP template structure provided by this creation has the following advantages when compared with other conventional techniques: 1. The components used in the FRP template structure of the creation are made of FRP material, compared with metal materials. Lightweight and high strength. Therefore, it has the convenience of handling, assembly, use and storage than the metal template, and the light weight can also reduce the difficulty in high altitude and improve the safety of the local application. 2. The FRP stencil structure of this creation is used to cast concrete. When the concrete is hardened, the surface can be kept flat, and the inner FRP plate is an FRP transparent or translucent plate body. Therefore, when pouring concrete, it can penetrate FRP. Plate to observe the concrete pouring situation. Therefore, the FRP template developed by the present invention can avoid the occurrence of honeycomb phenomenon when the concrete is poured, and the surface flatness is high after demolding, and the surface flatness and the like can be saved. 3. In addition, the FRP template structure of this creation has the advantages of low manufacturing cost and corrosion resistance, which cannot be achieved by general wood molds or steel molds.

The present invention has been disclosed above in the above embodiments, but it is not intended to limit the present invention. Anyone skilled in the art having ordinary knowledge will understand the foregoing technical features and embodiments of the present invention without departing from the present invention. In the spirit and scope, the scope of patent protection of this creation shall be subject to the definition of the requirements attached to this manual.

1‧‧‧FRP template structure
11‧‧‧FRP model version
111‧‧‧FRP board
112‧‧‧FRP grille
12‧‧‧Connecting parts
13‧‧‧Locking components
2‧‧‧FRP template structure
21‧‧‧FRP model version
211‧‧‧L-shaped FRP board
212‧‧‧FRP grille
22‧‧‧Connecting parts
23‧‧‧Locking components
3‧‧‧FRP template structure
31‧‧‧FRP model version
311‧‧‧L-shaped FRP board
312‧‧‧L-shaped FRP ribs
3121‧‧‧Connecting Department
32‧‧‧Locking components
4‧‧‧FRP template structure
41‧‧‧FRP model version
411‧‧‧Semi-circular FRP board
412‧‧‧Semi-circular FRP ribs
4121‧‧‧Connecting Department
42‧‧‧Locking components
5‧‧‧ column
51‧‧‧ struts

[Fig. 1A] is a schematic exploded view of the first embodiment of the FRP template structure. [Fig. 1B] is a schematic view showing the first embodiment of a three-dimensional structure of an FRP template structure. [FIG. 1C] This is a schematic view of a first implementation of an FRP template structure. [Fig. 2A] is a schematic exploded view of the second embodiment of the FRP template structure. [Fig. 2B] is a schematic view showing a second embodiment of a three-dimensional structure of an FRP template structure. [Fig. 2C] is a schematic view showing the second embodiment of an FRP template structure. [Fig. 3A] is a schematic exploded view of the third embodiment of the FRP template structure. [Fig. 3B] is a schematic view showing the third embodiment of the FRP template structure. [FIG. 3C] This is a schematic view of a third implementation of an FRP template structure. [Fig. 4A] is a schematic exploded view showing the fourth embodiment of an FRP template structure. [Fig. 4B] is a schematic view showing the fourth embodiment of the FRP template structure. [Fig. 4C] is a schematic diagram showing the structural connection of the fourth embodiment of an FRP template structure. [Fig. 4D] is a schematic view showing a fourth embodiment of an FRP template structure. [Fig. 5A] is a schematic exploded view of the fifth embodiment of the FRP template structure. [Fig. 5B] This is a fifth embodiment of a three-dimensional structure of an FRP template structure. [Fig. 5C] is a schematic diagram showing the connection of the fifth embodiment of the FRP template structure. [Fig. 5D] is a schematic view showing a fifth embodiment of an FRP template structure. [Fig. 6A] Fig. 6 is a schematic view showing the arrangement of the column and the struts of the fifth embodiment of the FRP template structure. [Fig. 6B] Fig. 6 is a top view showing the arrangement of the column and the struts of the fifth embodiment of the FRP stencil structure. [Fig. 7] Fig. 7 is a schematic top view showing another configuration of the column and the struts of the fifth embodiment of the FRP stencil structure. [Fig. 8] Fig. 8 is a perspective view showing a sixth embodiment of an FRP template structure. [Fig. 9] is a schematic view showing a seventh embodiment of an FRP template structure.

1‧‧‧FRP template structure

11‧‧‧FRP model version

111‧‧‧FRP board

112‧‧‧FRP grille

12‧‧‧Connecting parts

13‧‧‧Locking components

Claims (20)

An FRP template structure includes: a plurality of FRP mode versions, comprising a layer of FRP plates and a layer of FRP grids; and a plurality of connecting members contacting one end of any two adjacent FRP module versions; The locking component passes through the connecting member and is locked on one end of the FRP die to enable the connector to connect to any two adjacent FRP die versions, and surrounds the FRP module by the plurality of FRP modules. The resulting space can be used for pouring concrete. An FRP template structure according to claim 1, wherein the FRP plate of the FRP mode version is an FRP transparent or translucent plate. An FRP stencil structure according to claim 1, wherein the locking member passes through the connecting member and is locked to one end of the FRP grid of the FRP molded version. An FRP stencil structure according to claim 1, wherein the locking member passes through the connecting member and is locked to one end of the FRP plate of the FRP molded version. An FRP stencil structure according to claim 1, wherein the connecting member is an L-shaped connecting member. An FRP stencil structure according to claim 1, wherein the width of the FRP plate is equal to, smaller than, or greater than the width of the FRP grid. An FRP stencil structure includes: a plurality of FRP mode versions, which is an L-shaped structure, and the FRP mode version system includes an L-shaped FRP plate, and the two outer side faces of the L-shaped FRP plate respectively have An FRP grid; a plurality of connecting members contacting one end of each of two adjacent FRP mold versions; a plurality of locking elements passing through the connecting member and locked to one end of the FRP mode version In order to enable the connector to connect to any two adjacent FRP mold versions, the space formed by surrounding the plurality of FRP mold bodies can be used for pouring concrete. An FRP stencil structure according to claim 7, wherein the L-shaped FRP plate of the FRP molded version is an L-shaped FRP transparent or translucent plate. An FRP stencil structure according to claim 7, wherein the locking member passes through the connecting member and is locked to one end of the FRP grid of the FRP molded version. An FRP stencil structure according to claim 7, wherein the locking member passes through the connecting member and is locked to one end of the L-shaped FRP plate of the FRP molded version. An FRP stencil structure according to claim 7, wherein the connecting member is an L-shaped connecting member. An FRP stencil structure according to claim 7, wherein the width of any one of the outer sides of the L-shaped FRP plate is equal to, smaller than, or greater than the width of the FRP grid. An FRP stencil structure includes: a plurality of FRP mode versions, which is an L-shaped structure, and the FRP mode version system includes an L-shaped FRP plate, and the two outer side faces of the L-shaped FRP plate respectively have a plurality of L-shaped FRP ribs, and the two outer sides of the L-shaped FRP ribs respectively extend with a connecting portion, and the connecting portions on the L-shaped FRP ribs of any two adjacent FRP molded versions Will be stacked on each other; a plurality of locking elements are passed through and locked to the joints of any two L-shaped FRP ribs stacked on each other for connecting any two adjacent FRP mode versions, via The space formed by the plurality of FRP mold versions can be used for pouring concrete. An FRP stencil structure according to claim 13, wherein the L-shaped FRP plate of the FRP mode version is an L-shaped FRP transparent or translucent plate. An FRP stencil structure according to claim 13, wherein the connecting portion on the L-shaped FRP rib of any FRP molded version is disposed at an upper end of the outer side of the L-shaped FRP rib, and the other is adjacent thereto. The connecting portion on the L-shaped FRP rib of the FRP molded version body must be disposed at the lower end of the outer side of the L-shaped FRP rib so that the connecting portions on the L-shaped FRP ribs of two adjacent FRP molded versions can be stacked and contacted. . An FRP stencil structure according to claim 13, wherein the connecting portion on the L-shaped FRP rib of any FRP molded version is disposed at a lower end of the outer side of the L-shaped FRP rib, and the other is adjacent thereto. The connecting portion on the L-shaped FRP rib of the FRP molded version body must be disposed at the upper end of the outer side of the L-shaped FRP rib so that the connecting portions on the L-shaped FRP ribs of two adjacent FRP molded versions can be stacked and contacted. . An FRP stencil structure includes: a plurality of FRP mode versions, which are half-cylindrical structures, and the FRP mode version system comprises a semi-circular FRP plate, and the two outer sides of the semi-circular FRP plate are respectively Having a plurality of semi-circular FRP ribs, and the two outer sides of the semi-circular FRP ribs respectively extend from a semi-circular FRP rib on either two adjacent FRP molded versions. The connecting portions are stacked in contact with each other; a plurality of locking elements are passed through and locked to the joints of any two semi-circular FRP ribs stacked on each other for connecting any two adjacent FRPs The molded version body, and the space formed by surrounding the plurality of FRP mold versions can be used for pouring concrete. An FRP stencil structure according to claim 17, wherein the semi-circular FRP plate of the FRP molded version is a semi-circular FRP transparent or translucent plate. An FRP stencil structure according to claim 17, wherein the connecting portion on the semicircular FRP rib of any FRP molded version is disposed at the upper end of the outer side of the semicircular FRP rib, and the other is The connecting portion of the semi-circular FRP rib of the adjacent FRP molded version body must be disposed at the lower end of the outer side of the semi-circular FRP rib so as to be on the semi-circular FRP rib of two adjacent FRP molded versions. The connections can be stacked in contact. An FRP stencil structure according to claim 17, wherein the connecting portion on the semicircular FRP rib of any FRP molded version is disposed at the lower end of the outer side of the semicircular FRP rib, and the other is The connecting portion of the semi-circular FRP rib of the adjacent FRP molded version body must be disposed at the upper end of the outer side of the semi-circular FRP rib so as to be on the semi-circular FRP rib of two adjacent FRP molded versions. The connections can be stacked in contact.