WO2016095653A1

WO2016095653A1 - Base plate member

Info

Publication number: WO2016095653A1
Application number: PCT/CN2015/095082
Authority: WO
Inventors: 何爽; 王富有; 彭稳
Original assignee: 广东中集翌科新材料开发有限公司; 中集集团集装箱控股有限公司; 中国国际海运集装箱(集团)股份有限公司
Priority date: 2014-12-15
Filing date: 2015-11-20
Publication date: 2016-06-23
Also published as: CN105757441B; CN105757441A

Abstract

A base plate member comprises at least two transversely-spliced base plate units (1) and at least one groove fixing member (2, 4). Each base plate unit is of an integrated structure made of fiber reinforced polymer-matrix composite materials, and comprises a base plate unit body (11) and a foot plate (12) extending transversely from the bottom of the base plate unit body. The foot plates of every two adjacent base plate units are abutted against each other, and an accommodating groove (14) is defined by the foot plates of every two adjacent base plate units and the side surfaces of the two base plate unit bodies. The groove fixing member is made of one or more of wood materials, plastic materials, metal materials or thermoplastic composite materials. The groove fixing member is installed in the accommodating groove to fix the adjacent base plate units. The groove fixing member is attached to the inner wall of the accommodating groove, and the upper surface of the groove fixing member is not lower than the upper surface of the base plate unit body. The base plate member can be reliably fixed on a base frame and the overall strength and bearing performance are guaranteed as well.

Description

Floor member

Technical field

The invention relates to a bottom plate, in particular to a composite material floor member, which is suitable for various containers and vehicles. In the fields of shipbuilding, energy and chemical engineering and offshore engineering.

Background technique

Fiber Reinforced Plastics (FRP) can satisfy the modern structure and large span with its better specific strength, specific modulus, designability of material properties, corrosion resistance and durability. FRP materials are also increasingly used in various civil construction, bridge, transportation, marine and other structural fields due to the demand for products under harsh conditions such as high load capacity, light weight and high strength. In the fields of containers, vehicles, ships, energy and chemical engineering, and marine engineering, there are also precedents for preparing fiber reinforced composite materials into high-strength profile structures for use in primary load-bearing members. For example, fiber reinforced composite materials can be prepared into a base plate instead of Traditional wooden plywood, solid wood integrated floor, bamboo composite floor or steel base.

The biggest disadvantage of fiber reinforced composites is their inability to be effectively fixed, especially in floor systems for containers, vehicles, ships, energy, chemicals and offshore industries. In the prior art, the fiber reinforced composite material base is often fixed by screws directly, and generally 20 to 40 screws per square meter are required for fastening. The composite material is continuous fiber reinforced type, and the screw hole directly mechanically cuts the continuous fiber in the composite material plate, which greatly reduces the overall performance of the composite material bottom plate, and the bottom plate often forms stress concentration at the screw hole when carrying the load during use. Phenomenon, and gradually the formation of cracks and cracks, resulting in failure of the bottom plate; at the same time, the nail holding force of the FRP bottom plate is poor, and it is easy to form the nail-off phenomenon under the action of high-frequency fatigue load, which cannot achieve the function of fixing the bottom plate.

In order to solve the above problems of reaming and unpinning, in some structures, the fiber reinforced composite material (FRP) board is mainly used as the bearing bottom board, and the adjacent two main bearing bottom boards are arranged at a certain interval, and the inter-board fixing parts prepared by other materials are fixed. The device is installed at an interval between two adjacent main bearing bottom plates, and all the screws fix the FRP bottom plate and the base frame through the inter-board fixing members. This method effectively avoids the damage of the screw to the FRP bottom plate and the poor nail holding force of the FRP bottom plate, and provides a new idea for the fixing of the FRP bottom plate. The interplate fixing parts are generally prepared from wood materials (including solid wood composite board, wood plywood, bamboo-wood composite plywood, oriented structural board (OSB board) and wood/bamboo veneer composite board, etc.), plastic or composite material. However, the inter-board fixtures are required to withstand high-frequency loads as part of the load-bearing structure, especially as relatively independent inter-board fixtures, the strength requirements of which are equivalent to the strength of the FRP backplane, therefore, the inter-board fixtures The production cost is higher and the density is higher (at least more than 750Kg/m ³ ), and it is difficult to achieve the purpose of weight reduction.

Summary of the invention

It is an object of the present invention to provide a floor member to solve the problem that the existing FRP bottom plate is difficult to be effectively fixed.

In order to solve the above technical problem, the present invention adopts the following technical solution: a bottom plate member comprising at least two bottom plate units and at least one groove fixing member; the bottom plate unit is an integral structure made of a fiber reinforced polymer matrix composite material, each The bottom plate unit is horizontally spliced; the bottom plate unit comprises a bottom plate unit main body and a leg plate extending laterally from the bottom sides of the bottom plate unit main body; the foot plates of the adjacent two bottom plate units are in contact with each other, and are enclosed with the side surfaces of the two bottom plate unit main bodies to form a capacity The groove fixing member is made of one or more of a wood material, a plastic material, a metal material, and a thermoplastic composite material; the groove fixing member is installed in the accommodating groove to fix the adjacent two bottom plates; And a groove fixing member is attached to the inner wall of the accommodating groove, and an upper surface of the groove fixing member is not lower than an upper surface of the bottom plate unit main body.

Preferably, the bottom plate member is carried on a base frame and is fixed to the base frame by screws passing through the groove fixing member and the foot plate; in the direction of splicing along the bottom plate unit, the screws are in each One of the groove fixing members is provided with 1 to 3 rows.

Preferably, the screw has an arrangement density of 16 to 20/m2.

Preferably, a sealing member is protruded from both sides of the groove fixing member, and the sealing member is closely matched with the inner wall of the receiving groove.

Preferably, the sealing member is integrally formed on the groove fixing member, and the sealing member has a pusher cap shape, so that the groove fixing member is in an interference fit with the receiving groove.

Preferably, the sealing member is a sealing strip, and two sides of the groove fixing member are provided with strip-shaped grooves, and the sealing strip is placed in the groove, and the elasticity of the sealing strip is made The groove fixing member is in close cooperation with the inner wall of the accommodating groove.

Preferably, the sealing strip is a vulcanized rubber type sealing strip, a silicone rubber sealing strip, a neoprene sealing strip, a thermoplastic elastomer type sealing strip, a TPV sealing strip or a PVC sealing strip.

Preferably, the sealing member is a sponge strip bonded to both sides of the groove fixing member.

Preferably, the sponge strip comprises an EVA or PE foam substrate and a hot melt pressure sensitive adhesive applied to the substrate.

Preferably, the sealing member is a polyurethane, polyurethane (urea) or polyurea material sprayed on both sides of the groove fixing member, and the groove fixing member and the inner wall of the receiving groove are made by the elasticity of the sealing member work close with.

Preferably, the difference between the height of the upper surface of the groove fixing member and the upper surface of the bottom plate unit main body is 0 to 1 mm.

Preferably, the height of the upper surface of the groove fixing member beyond the upper surface of the bottom plate unit main body is 0.5 mm.

Preferably, the outer side surface of the bottom plate unit body has an inclination angle of 0° to 15° with respect to the vertical surface, and the inclination direction is inclined outward from the top to the bottom; the two sides of the groove fixing member have the same The angle of inclination of the outer side of the bottom plate unit body.

Preferably, the angle of inclination of the outer side surface of the bottom plate unit body with respect to the vertical surface is 0° to 8°.

Preferably, the bottom plate unit body comprises at least one carrying portion, the carrying portion comprises a panel and a plurality of webs extending downward from the bottom of the panel; the bottom plate member further comprises an end filling member, the end portion The filler member is filled in both longitudinal ends of the bottom plate unit main body and is located between adjacent two webs of the carrying portion.

Preferably, the end fillers are spaced apart at both ends of the bottom plate unit along a length direction of the bottom plate unit body.

Preferably, the end filler has a length of 20 mm to 50 mm, and an interval between adjacent end portions of the filler is 100 mm to 400 mm; and the end filler is distributed in a region within 3 m from the end surface of the bottom plate unit main body.

Preferably, the end filler is continuously filled in a region within 3 m from the end surface of the bottom plate unit main body along the longitudinal direction of the bottom plate unit main body.

It can be seen from the above technical solutions that the advantages and positive effects of the present invention are that the present invention adopts a form in which the load-bearing structure is separated from the fixed structure, and the characteristics of each material are fully utilized, thereby satisfying the effective fixing of the composite material base plate and avoiding the screw. The damage to the FRP bottom plate is fixed to ensure the overall strength and load bearing performance of the bottom plate member. In the bottom plate member of the present invention, the groove fixing member only provides support fixing and load transfer, and the load of the bottom plate is received by the bottom plate unit, so the mechanical performance of the groove fixing member is not high, and the performance problem of the fixing member is avoided. The overall bearing capacity of the floor member is affected.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a first embodiment of a floor member of the present invention.

Figure 2 is a partial enlarged view of the portion N of Figure 1 of the present invention.

Figure 3 is a schematic view showing another sealing structure of the groove fixing member in the first embodiment of the floor member of the present invention.

Fig. 4 is a view showing a third sealing structure of the groove fixing member in the first embodiment of the floor member of the present invention.

Figure 5 is a schematic view showing the structure of the bottom plate unit in the first embodiment of the floor member of the present invention.

Figure 6 is a schematic view showing the structure of the back side of the first embodiment of the floor member of the present invention.

Figure 7 is a schematic view showing the structure of a bottom plate unit in a second embodiment of the floor member of the present invention.

Figure 8 is a schematic view showing the structure of a bottom plate unit in a third embodiment of the floor member of the present invention.

Figure 9 is a schematic view showing the structure of a bottom plate unit in a fourth embodiment of the floor member of the present invention.

Figure 10 is a schematic view showing the mating structure of the bottom plate unit and the cavity filling member in the fifth embodiment of the bottom plate member of the present invention.

Figure 11 is a schematic view showing the structure of a bottom plate unit in a sixth embodiment of the floor member of the present invention.

Figure 12 is a schematic view showing the mating structure of the bottom plate unit and the cavity filling member in the seventh embodiment of the bottom plate member of the present invention.

Figure 13 is a schematic view showing the structure of a bottom plate unit in an eighth embodiment of the floor member of the present invention.

Figure 14 is a schematic view showing the structure of a bottom plate unit in a ninth embodiment of the floor member of the present invention.

Figure 15 is a schematic view showing the structure of a ninth embodiment of the floor member of the present invention.

Figure 16 is a partial enlarged view of a portion P in Figure 15 of the present invention.

Figure 17 is a schematic view showing the structure of a bottom plate unit in a tenth embodiment of the floor member of the present invention.

The reference numerals are as follows: 1. bottom plate unit; 11, bottom plate unit main body; 111, bearing portion; 1111, panel; 1112, side web; 1113, intermediate web; 1114, bottom support; 1114a, side foot support; , intermediate support; 1114c, plate support; 1116, cavity; 112, bottom connection plate; 114, groove; 12, foot plate; 14, receiving groove; 2, first groove fixing member; 3, the edge fixing member; 4, the second groove fixing member; 5, the cavity filling member; 51, the filling cylinder; 53, the upper wing; 54, the lower wing; 55, the vertical plate; 6, the end Filler.

detailed description

Exemplary embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of various modifications in the various embodiments and this invention.

The floor member of the invention can be applied to various fields such as containers, vehicles, ships, energy chemicals and offshore industries. The bottom plate member is mainly composed of a plurality of bottom plate units which are laterally joined and a first groove fixing member for fixing adjacent two bottom plate units, and the "lateral direction" is the width direction of the bottom plate unit.

The bottom plate unit is a one-piece structure made of fiber reinforced polymer matrix composite material, which fully utilizes the high strength and low modulus characteristics of the composite material; the surface of the bottom plate unit can be wear-resistant by spraying materials such as polyurethane, polyurethane (urea) or polyurea. , anti-slip, anti-impact, anti-pollution, moisture-proof, acid and alkali resistance. The fiber reinforced polymer matrix composite material of the bottom plate unit is prepared by using a high strength and high modulus fiber as a reinforcement and a resin as a matrix. The reinforcement may be one or more of glass fiber, carbon fiber, aramid fiber, and other natural fibers, and the matrix may be one or more of unsaturated polyester resin, vinyl resin, epoxy resin, and polyurethane. Molecular material.

The first groove fixing member is made of wood material (including solid wood floor, bamboo and wood composite board, OSB (Oriented Strandboard) board and composite forest wood veneer composite board, special plywood, etc.), plastic, metal material, thermoplastic composite One or more of the materials are made, and the surface of the first groove fixing member may be treated with a water-based environmentally-friendly paint or a coated polyurethane, polyurethane (urea) or polyurea.

When the bottom plate member is in use, each bottom plate unit is laid on the base frame, and the first groove fixing member is placed on the bottom plate unit without contacting the base frame, and the first groove fixing member and the bottom plate unit are passed through the screw The frame is fixedly connected, and the advantages of the strong holding force of the first groove fixing member to the screw are fully utilized, so that the bottom plate unit and the base frame are reliably connected and fixed. Both end portions of the bottom plate member (i.e., both ends in the longitudinal direction) have a cavity between the base frame and the base frame, and may be filled by an end filler made of a wood material, a plastic material, a metal material or a composite material. Both side portions of the bottom plate member may also be fixed to the base frame by the side fixing members, and the side fixing members may be prepared by using wood materials, plastics or composite materials.

The base unit may have various structures based on the requirements of the connection manner of the adjacent two bottom plate units and the first groove fixing member, and the comprehensive consideration of the performance and cost of the bottom plate unit. The structural form of the base unit and the connection mode of the base unit are described below in conjunction with specific embodiments.

First embodiment

Referring to FIG. 1 , the bottom plate member of the present embodiment is formed by three horizontally parallel matings of the bottom plate units 1 , and two first groove fixing members 2 are respectively disposed between the three bottom plate units 1 . A second groove fixing member 4 is further disposed in the middle portion of the first member, and side fixing members 3 are provided on both sides of the bottom plate member.

As shown in FIG. 2, each of the bottom plate units 1 includes a bottom plate unit main body 11 and a leg plate 12 extending laterally from both sides of the bottom portion of the bottom plate unit main body 11. The bottom plate 12 is arc-connected with the side surface of the bottom plate unit main body 11, and the bottom plate is connected. The unit 1 as a whole has an integral structure. The leg plates 12 of the adjacent two bottom plate units 1 are in contact with each other and form a receiving groove 14 with the side surfaces of the two bottom plate unit main bodies 11. Preferably, the leg plates 12 of the adjacent two floor units 1 are equal in thickness so that the upper surfaces of the mutually opposing leg plates 12 are flush.

The first groove fixing member 2 is installed in the accommodating groove 14 formed by the two adjacent bottom plate units 1. The continuous groove or seal tape can be coated in the accommodating groove 14 along the length of the bottom plate unit 1 so that The first groove fixing member 2 is fixedly mounted in the accommodating groove 14. In the longitudinal direction of the base unit 1, the first groove fixing member 2 can be designed as a plurality of overlapping or butt joints, or can be designed as a through strip.

The cross-sectional shape of the first groove fixing member 2 is adapted to the shape of the accommodating groove 14. The two corners of the lower end of the first groove fixing member 2 are chamfered to avoid the transition arc in the accommodating groove 14. The size of the chamfer depends on the transition arc size of the foot plate 12 and the bottom plate unit main body 11. The lower surface of the first groove fixing member 2 is in contact with the upper surface of the leg plate 12. The two side surfaces of the first groove fixing member 2 are in contact with the side surfaces of the two bottom plate unit main bodies 11, and the upper surface of the first groove fixing member 2 is not It is lower than the upper surface of the bottom plate unit main body 11; in the present embodiment, the upper surface of the first groove fixing member 2 is beyond the upper surface of the bottom plate unit main body 11. Preferably, the difference between the height of the upper surface of the first groove fixing member 2 and the upper surface of the bottom plate unit main body 11 is 0 to 1 mm. In a preferred embodiment, the difference is 0.5 mm.

In the structure shown in FIG. 2, the two sides of the first groove fixing member 2 are provided with a plurality of protruding structures in the shape of a pin-shaped cap, and the protruding structures are integrally formed as a sealing member 21 on the first groove fixing member. 2, through the convex structure, the first groove fixing member 2 and the accommodating groove 14 are interference fit to better seal the structure, and the convex structure can be generally designed to be 1-3. The protruding structure is directly made in one piece when the first groove fixing member 2 is made, and the production process is convenient.

Referring to FIG. 3, in another structure, strip grooves are formed on both sides of the first groove fixing member 2, and a sealing strip is placed in the strip groove to seal the strip as a sealing member 21, and the sealing is passed through the sealing member. The elasticity of the strip causes the first groove fixing member 2 to closely fit with the inner wall of the accommodating groove 14. The sealing strip can be a vulcanized rubber sealing strip, a silicone rubber sealing strip, a neoprene sealing strip, a thermoplastic elastomer type sealing strip, a TPV sealing strip or a PVC sealing strip.

Referring to FIG. 4, in another structure, the two sides of the first groove fixing member 2 are provided with an elastic body as a sealing member 21, and the elastic body is covered with the side surface of the first groove fixing member 2, and the elastic body and the elastic body are utilized. The inner wall of the groove 14 is elastically contacted, so that the first groove fixing member 2 and the inner wall of the accommodating groove 14 are in close contact with each other. The elastic body may be a sponge strip bonded to the first groove fixing member 2, and the sponge strip may be an EVA or PE foam substrate, and the single-sided or double-door coated hot-melt pressure-sensitive adhesive on the substrate. . In other modes, the elastomer may also be a polyurethane, polyurethane (urea) or polyurea material or the like that is sprayed onto the first groove holder 2.

Through the above three structures, a better sealing effect between the first groove fixing member 2 and the bottom plate unit 1 can be achieved, and the waterproofing and protection of the base frame structure of the bottom plate can be prevented from being eroded.

Referring to FIG. 1 and FIG. 2, after the bottom plate member is laid on the base frame, the screw is passed through the first groove fixing member 2 and the foot plate 12 to be fixed to the base frame, and the first groove fixing member 2 is completely accommodated by the base member. In the accommodating groove 14 formed by the mating of the bottom plate unit 1, the load received by the first groove fixing member 2 during use is transmitted to the leg plate 12 of the bottom plate unit 1 and transmitted to the bottom plate unit main body 11 of the bottom plate unit 1 through the foot plate 12. That is, all loads will eventually be absorbed by the base unit 1, and the first groove holder 2 only provides support fixing and load transfer. Therefore, the connection manner of the bottom plate unit 1 does not require high mechanical properties of the first groove fixing member 2, and the performance problem of the first groove fixing member 2 is circumvented to affect the overall bearing capacity of the bottom plate member. The width of the first groove fixing member 2, that is, the width of the accommodating groove 14 need not be particularly large, and is controlled at 30mm ~ 150mm can be.

In the bottom plate member, 1 to 3 rows of screws are fixed on each of the first groove fixing members 2 in the splicing direction of the bottom plate unit 1. Preferably, at least one row of screws is disposed on the leg plates 12 of the adjacent two bottom plate units 1 to which the first groove fixing member 2 is connected, so that the fixing of the bottom plate unit 1 and the base frame is more secure. The arrangement density of the screws is preferably 16-20 pieces/m2, and the screw arrangement density is 36-46 pieces/m2 compared with the conventional wooden bottom plate, and the screw usage amount can be reduced by 40%-50% in the bottom plate member. Not only saves material and labor costs, but also avoids the initial damage caused by high-density screw holes to the pedestal structure.

The edge fixing member 3 is used for connecting the bottom plate unit 1 located at the outermost side with the base frame side beam, the bottom surface of the edge fixing member 3 is attached to the base frame, and the corresponding side openings of the side fixing member 3 are fixed to fix The foot plate 12 of the base unit 1 and the base frame side beam. Depending on the width dimension of the

side fasteners

3, 1 to 4 rows of screws can be provided thereon to fasten them to the base frame. The material of the edge fixing member 3, the surface treatment method and the sealing structure can all be used in the same manner as the first groove fixing member 2, and will not be described in detail herein.

The number and arrangement position of the second groove fixing members 4 depend on the structure of the bottom plate unit 1, and when the bottom plate unit 1 has a large width, the middle position of the bottom plate unit 1 is fixed to the base frame by the second groove fixing member 4, The bottom plate member can be prevented from arching and the flatness of the bottom plate member can be maintained. The structure of the second groove fixing member 4 can be referred to the first groove fixing member 2.

As shown in FIG. 5, in the embodiment, the bottom plate unit main body 11 of each bottom plate unit 1 includes two laterally arranged carrying portions 111, each of which includes a panel 1111 and extends downward from the bottom of the panel 1111. A plurality of webs are provided, and a bottom support 1114 is disposed at the lower end of the web. The web includes two side webs 1112 on both sides of the panel 1111 and an intermediate web 1113 in the middle; the bottom support 1114 is a foot support, and the foot support includes a plurality of side leg supports 1114a and a plurality of intermediate leg supports 1114b; The number of foot supports 1114a is the same as the number of side webs 1112, and the side leg supports 1114a are formed horizontally inwardly from the bottom of the side webs 1112; the number of intermediate leg supports 1114b is the same as the number of intermediate webs 1113, and the intermediate foot supports 1114b are The bottom edge of the intermediate web 1113 extends horizontally to both sides.

For the bearing portion 111, the panel 1111 is a pressure-bearing structure, each web provides strong shear strength and compressive strength, and the bottom support 1114 provides strong tensile strength, not only maximizing the mechanical properties of the composite material, but also The overall density and material cost of the base unit 1 can be effectively reduced.

The bottom ends of the one side webs 1112 of the two load-bearing portions 111 are integrally connected by a bottom connecting plate 112, thereby enclosing a groove 114 between the bottom connecting plate 112 and the side webs 1112 of the adjacent carrying portions 111. The second groove fixing member 4 is placed in the groove 114 and can be fixedly connected to the base frame through the second groove fixing member 4 and the bottom connecting plate 112 by screws.

According to the connection between the two bearing portions 111 in the bottom plate unit main body 11, the bottom plate unit main body 11 may further include three or more carrying portions 111, so that the plurality of carrying portions 111 constitute a whole, not only the bottom plate unit 1 is improved. The overall strength also effectively increases production efficiency. The number of the grooves 114 on each of the bottom plate units 1 is controlled to be 1 to 5, that is, the number of the carrying portions 111 on each of the bottom plate units 1 is 2 to 6, and the width of the grooves 114 is between 30 mm and 150 mm. Correspondingly, the width of the second groove fixing member 4 adapted to the groove 114 is 30 mm to 150 mm.

The size of the groove 114 may be the same as the size of the accommodating groove 14 formed by the adjacent two bottom plate units 1, and accordingly, The first groove fixing member 2 and the second groove fixing member 4 are the same in size, and can form a standard member for easy fabrication and installation.

The leg plate 12 of the bottom plate unit 1 is horizontally extended outward from the bottom portions of the outermost side webs 1112 of the bottom plate unit main body 11, and the lower surface of the leg plate 12, the lower surface of the bottom support 1114, and the lower surface of the bottom connecting plate 112 are flush. .

Depending on the application area or load bearing requirements of the floor unit 1, the number of webs, the spacing or the overall thickness of the profile can be adjusted to meet the size and strength requirements. The total number of the webs may be set to 3 to 20 depending on the width of the carrying portion 111, the interval between adjacent webs may be 30 mm to 100 mm, and the total thickness of the profiles may be 10 mm to 70 mm.

According to the finite element analysis of the bottom plate unit 1, under the condition that the overall thickness is constant, the weight reduction can be achieved by reducing the thickness of the panel, and the performance impact is within 3%; by increasing the overall thickness, increasing the width of the foot plate and/or The thickness and the thickness of the web can increase the load carrying capacity. After comprehensive analysis, when the parameters of each part of the base unit 1 are in the following range, the maximum weight reduction effect can be achieved under the condition that the bearing performance is satisfied.

The thickness 11 of the panel 1111 of each of the bearing portions 111 is 3 mm to 8 mm; the thickness B of the side webs 1112 and the intermediate webs 1113 is 4 mm to 7 mm; the width C of the foot supports is 10 mm to 30 mm, and the thickness D of the foot supports is 4 mm. 6 mm; the thickness G of the leg plate 12 is 3 mm to 7 mm, and the width E of the leg plate 12 is 15 mm to 40 mm. Through the special design of these dimensions, each carrier portion 111 can achieve higher load bearing performance at a lower cost. In addition, since the bottom plate unit 1 of the present invention is fixed to the base frame by the first groove fixing member 2 or the second groove fixing member 4 during installation, the bottom plate unit of the present invention is provided to satisfy the effective fixing of the bottom plate unit 1. 1 The width F of the panel 1111 of each of the carrying portions 111 is preferably in the range of 50 mm to 450 mm.

Based on the comprehensive consideration of cost and performance, the optimal dimensions of each part of the bearing portion 111 are: the width F of the panel 1111 of the bearing portion 111 is 200 mm to 300 mm, the thickness A of the panel 1111 is 4 mm to 5 mm, the side web 1112 and the intermediate web. The thickness B of 1113 is 4 mm to 6 mm; the width C of the foot support is 15 mm to 25 mm, the thickness D of the foot support is 4.5 mm to 5 mm; the thickness G of the leg plate 12 is 3 mm to 5 mm, and the width E of the leg plate 12 is 15 mm. 28mm.

According to the preferred parameter range of each part of the above-mentioned bottom plate unit 1, the present invention performs finite element analysis and related structural tests on the structures of several typical parameters, and the parameters of each structure are shown in the following table.

The finite element analysis and test results of the above structure are shown in the following table, wherein the loading conditions in the finite element analysis calculation result are: application load 65KN, support span 310 mm.

The finite element analysis structure of the above structure 1 to structure 6 and the actual test results satisfy the requirements of use, and a good weight reduction effect is obtained under the condition of satisfying the bearing performance. From the first structure to the sixth structure, the trend is gradually getting better.

Referring to FIG. 6, since there is a cavity between the adjacent webs of the bearing portion 111, when the bottom plate member is subjected to multi-frequency fatigue stress near the end position, the bottom plate member is easily damaged. In this embodiment, the end portion is preferably close to the end portion. The cavity location is provided with an end filler 6 to enhance the fatigue resistance of the floor member. The end fillers 6 are filled at both ends in the longitudinal direction of the bottom plate unit main body 11 at intervals along the longitudinal direction of the bottom plate unit main body 11, and the filling range is substantially within 3 m from the end surface of the bottom plate unit main body 11, that is, the end filling members 6 are spaced apart from each other at a distance from the bottom plate. The area inside the end surface of the unit main body 11 is 3 m. The section of the end filler 6 depends on the cavity section in the bottom plate unit body 11. In the present embodiment, the end filler 6 is filled between the adjacent webs of the carrier portion 111. The length of the end filling member 6 is 20 mm to 50 mm, and the position of the end filling member 6 corresponds to the bottom cross member on the base frame, and the interval between the adjacent end portions of the filling members 6 is according to the interval between the upper and lower cross members of the base frame. Fixed, roughly 100mm ~ 400mm. After the bottom plate member is laid on the base frame, the end filling member 6 is located on the bottom cross member of the base frame, thereby increasing the fatigue resistance of the bottom plate member and avoiding the damage caused by the multi-frequency fatigue stress at the end position of the bottom plate member. The end fillers 6 are spaced apart to reduce weight and cost.

In another aspect, the end filler 6 may be continuously filled along the length direction of the bottom plate unit main body 11, and the filling range of the end filler 6 is within a range of 3 m from the end surface of the bottom plate unit main body 11.

Second embodiment

The difference between this embodiment and the first embodiment is that the structure of the base unit 1 is different. Referring to FIG. 7, the bottom plate unit body of the bottom plate unit 1 of the present embodiment has only one carrying portion 111. The structure of the carrying portion 111 is the same as that of the carrying portion 111 in the first embodiment, and still has a panel 1111 and a side web 1112. Intermediate web 1113 and bottom support 1114. The groove is not formed on the bottom plate unit main body of the bottom plate unit 1, and the second groove fixing member in the first embodiment is omitted accordingly.

The leg plates 12 of the base unit 1 extend outward from the bottoms of the webs 1112 on both sides of the carrier portion 111. When the bottom plate unit 1 is spliced into the bottom plate member, as in the first embodiment, the foot plate 12 of the adjacent two bottom plate units 1 encloses a receiving groove, and the first groove fixing member is installed in the receiving groove, and then the screw is passed through the screw. Fasten. Compared to the first embodiment, the stitching is the same width In the case of the floor member of the degree, the use of the floor unit 1 of the present embodiment will require a greater number.

Other structures of the bottom plate member of this embodiment can be referred to the first embodiment and will not be specifically described.

Third embodiment

The difference between this embodiment and the first embodiment is also that the structure of the base unit 1 is different. Fig. 8 shows the structure of the base unit 1 in the present embodiment, the base unit main body 11 of the base unit 1 has two carrying portions 111, each of which includes a panel 1111, a side web 1112, an intermediate web 1113 and a bottom. Supported, the one side webs 1112 of the two load-bearing portions 111 are connected by the bottom connecting plate 112 to form the grooves 114. The foot plates 12 of the bottom plate unit 1 extend outward from the bottom of the other side web 1112 of the two load-bearing portions 111.

Different from the first embodiment, in the embodiment, the bottom support of the carrying portion 111 is a flat plate support 1114c, and the flat plate support 1114c, the bottom connecting plate 112 and the two leg plates 12 are connected in a unitary structure. The lower end of each intermediate web 1113 is connected to the flat plate support 1114c. Compared with the first embodiment, the

foot support

1114a, 1114b is used as the bottom support 1114. In this embodiment, the bearing portion 111 has better bearing performance.

The thickness of the flat plate support 1114c is preferably 4 mm to 6 mm, and the optimum size is 4.5 mm to 5 mm. Other dimensional parameters of the carrying portion 111 can be referred to the first embodiment.

Fourth embodiment

Referring to FIG. 9, the difference between the present embodiment and the third embodiment is that the bottom plate unit body of the bottom plate unit 1 of the present embodiment has only one carrying portion 111, and the structure of the carrying portion 111 is the same as that of the third embodiment.

In this embodiment, the connection relationship between the leg plate 12 of the bottom plate unit 1 and the bottom plate unit main body is the same as that of the second embodiment; accordingly, the combination of the plurality of bottom plate units and the first groove fixing member to form the bottom plate member is also the second The examples are the same.

Fifth embodiment

Referring to FIG. 10, the difference between this embodiment and the fourth embodiment is that the carrying portion 111 of the bottom plate unit 1 in this embodiment is not provided with an intermediate web, the panel 1111 of the carrying portion 111, the two side webs 1112, and the flat plate support 1114c. The cavity is formed into a cavity 1116 having a cross-sectional shape, and the leg plate 12 extends outward from the bottom of the two side webs 1112 and is connected to the flat plate support 1114c as a unitary structure. The height of the cavity 1116 may be 5 mm to 60 mm, and the width of the cavity 1116 may be 50 mm to 450 mm.

The bottom plate member of the present embodiment further includes a cavity filler 5 that is adaptively mounted in the cavity 1116 of the carrier portion 111 to provide strong support and shear strength to enhance the compressive strength of the floor member And fatigue resistance, improve the bearing capacity of the floor member. The cavity filling member 5 may be prepared by one or more of wood material, plastic, metal material or composite material, wherein the wood material comprises wood plywood, solid wood composite material composite board, bamboo wood composite floor, oriented structural board (OSB board, Oriented Strandboard) and composite board of wood/bamboo veneer. The length dimension of the cavity filler 5 is designed to be 1 m to 10 m depending on the material used and the ease of processing, and is adapted to the length of the bottom plate member. The cross section of the cavity filler 5 can be designed according to the strength requirements, and the cavity filler 5 can be a hollow member or a solid member.

In the present embodiment, the cavity filler 5 has three longitudinal beams 51 and a transverse beam (not shown) laterally connected between the longitudinal beams 51. The longitudinal beams 51 are along the width of the bearing portion 111 in the cavity 1116. Direction interval setting. Both the longitudinal beam 51 and the beam can be hollow beams or solid beams. In the present embodiment, the longitudinal beam 51 is a solid beam having a rectangular cross section, and the upper and lower surfaces are in contact with the panel 1111 and the plate support 1114c, respectively. Each of the stringers 51 is joined together by a beam to facilitate installation of the cavity filler 5 into the cavity 1116. Preferably, the beams are respectively connected to both end portions of each of the longitudinal beams 51, and both ends of the beam interfere with the webs on both sides of the bearing portion 111 to facilitate positioning of the cavity filler 5 in the cavity 1116. The cavity filling member 5 of the embodiment is preferably made of a wooden material, has convenient processing, low cost, and can also have better performance.

Compared with the structures of the first embodiment to the fourth embodiment, the bottom plate unit 1 of the present embodiment has a simpler structure and is convenient for processing and forming; and the intermediate filler plate is replaced by the cavity filling member 5, and a better supporting effect can also be obtained. And shear strength. The cavity filler 5 can be made of a corner material or an inexpensive material at a lower cost.

Sixth embodiment

Referring to FIG. 11, the difference between this embodiment and the fifth embodiment is that, in this embodiment, the bottom plate unit main body 11 of the bottom plate unit 1 has two carrying portions 111, a panel 1111 of each carrying portion 111, a side web 1112, and The plate supports 1114c are each enclosed to form a cavity 1116 having a cross-sectional shape.

When the bottom plate unit 1 is composed of the bottom plate member, a cavity filler (not shown in FIG. 11) is disposed in the cavity 1116 of the two bearing portions 111. The structure and arrangement of the cavity filler can be referred to the fifth. Example.

For the connection between the two supporting portions 111 and the manner of connecting the leg plate 12 and the supporting portion 111, refer to the third embodiment. Accordingly, the combination of the plurality of the bottom plate units 1 and the first groove fixing member may also be combined. Reference is made to the third embodiment.

Seventh embodiment

Referring to FIG. 12, the difference between this embodiment and the fifth embodiment is that, in this embodiment, the carrying portion 111 of the bottom plate unit 1 is not provided with a flat plate support, but extends horizontally inward from the bottom of the two side webs 1112 to form two One side foot support 1114a has a space between the two side foot supports 1114a. The panel 1111 of the carrying portion 111, the two side webs 1112 and the two side leg supports 1114a enclose a cavity 1116 that is open at the bottom, and the foot plate 12 extends outwardly from the bottom of the two side webs 1112.

A cavity filler 5 is also provided in the cavity 1116 in this embodiment to provide support and shear strength. The cavity filling member 5 is supported on the lower surface of the panel 1111, and the lower surface of the cavity filling member 5 is flush with the lower surface of the leg plate 12.

The cavity filler 5 of the present embodiment is an I-shaped support beam, and includes an upper wing plate 53, a lower wing plate 54, and a vertical plate 55 connected between the upper and lower wing plates 53, 54, and the upper wing plate 53 supports The lower surface of the panel 1111, the extension of the upper blade 53, that is, the width of the upper blade 53, is preferably 15 mm to 150 mm to uniformly transmit the load of the panel 1111. In order to avoid the hard contact between the upper wing plate 53 and the lower surface of the panel 1111, the top surface of the upper wing plate 53 is preferably bonded with a layer of foam cotton or a layer of elastomer. The I-shaped support beam is preferably made of metal or composite material, preferably made of metal material, and has better bearing strength. The I-shaped support beam can be pre-set on the base frame structure by welding or bonding.

The structure of the cavity filling member 5 of this embodiment can also be applied to the fifth embodiment and the sixth embodiment. Similarly, the fifth embodiment The structure of the cavity filler 5 in the embodiment can also be applied to this embodiment.

Eighth embodiment

Referring to FIG. 13, the difference between the present embodiment and the seventh embodiment is that, in the embodiment, the bottom plate unit body 11 of the bottom plate unit 1 has two carrying portions 111, and the two carrying portions 111 are connected by a bottom connecting plate 112 to form a concave portion. Slot 114. Each of the carrying portions 111 defines a cavity 1116 having a bottom opening. Correspondingly, a cavity filling member (not shown in FIG. 13) is disposed in each of the cavities 1116. For the specific arrangement, refer to the seventh embodiment.

Ninth embodiment

Referring to FIG. 14, the difference between the present embodiment and the first embodiment is that, in this embodiment, the outer surfaces of the webs 1112 of the bearing portion 111 of the bottom plate unit main body 11 are inclined surfaces, and the oblique direction is from top to bottom. The inclination is such that the outer shape of the bearing portion 111 forms a trapezoidal shape with a narrow width and a narrow width, and the groove 114 between the two bearing portions 111 is a wide-necked upper and lower narrow trapezoidal shape. Correspondingly, the second groove fixing member 4 (not shown) adapted to the groove 114 is also a trapezoidal shape having an upper width and a lower width.

Referring to FIG. 15 and FIG. 16, in the bottom plate member of the embodiment, the accommodating grooves 14 formed by the adjacent two bottom plate units 1 have a trapezoidal shape with an upper width and a lower width. In accordance with this, the shape of the first groove fixing member 2 is also trapezoidal.

The inclined design of the outer surface of the upper web of the bottom plate unit not only facilitates the installation of the groove fixing member, but also forms a self-tight fit between the groove fixing member and the bottom plate unit, thereby increasing the sealing performance of the bottom plate system.

The inclination angle θ of the outer surface of the side web 1112 with respect to the vertical plane is ≤ 15°, preferably θ ≤ 8°. The inclination angles of the both side faces of the first groove fixing member 2 and the second groove fixing member 4 with respect to the vertical surface are also θ.

Tenth embodiment

Referring to Fig. 17, the difference between the present embodiment and the ninth embodiment is that in the present embodiment, the bottom plate unit main body 11 has only one carrying portion 111, and the structure of the carrying portion 111 is the same as that of the ninth embodiment.

The connection manner in which the bottom plate unit 1 of this embodiment is spliced into the bottom plate member can be referred to the second embodiment.

In the ninth embodiment and the tenth embodiment, the structure in which the outer surfaces of the webs 1112 on both sides of the carrier portion 111 are inclined is also applicable to the third to eighth embodiments, and the tilting design is used to raise the bottom plate. Self-sealing performance.

While the invention has been described with respect to the preferred embodiments the embodiments The present invention may be embodied in a variety of forms without departing from the spirit or scope of the invention. It is to be understood that the invention is not limited to the details of the invention. All changes and modifications that come within the scope of the claims or the equivalents thereof are intended to be covered by the appended claims.

Claims

A bottom plate member, comprising:

At least two bottom plate units, which are an integral structure made of a fiber reinforced polymer matrix composite material, each bottom plate unit is laterally spliced; the bottom plate unit comprises a bottom plate unit main body and a leg plate extending laterally from both sides of the bottom portion of the bottom plate unit main body; The foot plates of the two bottom plate units are in contact with each other, and are enclosed with the side surfaces of the two bottom plate unit bodies to form a receiving groove;

At least one groove fixing member for fixing adjacent two bottom plate units, the groove fixing member being made of one or more kinds of wood material, plastic, metal material, thermoplastic composite material; In the accommodating groove, the groove fixing member is engaged with the inner wall of the accommodating groove, and the upper surface of the groove fixing member is not lower than the upper surface of the bottom plate unit main body.
The floor member according to claim 1, wherein the bottom plate member is carried on a base frame and is fixed to the base frame by screws passing through the groove fixing member and the foot plate; In the splicing direction of the bottom plate unit, the screws are provided with 1 to 3 rows on each of the groove fixing members.
The floor member according to claim 2, wherein the screw has an arrangement density of 16 to 20 pieces/m2.
The bottom plate member according to claim 1, wherein a sealing member is protruded from both sides of the groove fixing member, and the sealing member is closely fitted with the inner wall of the receiving groove.
The bottom plate member according to claim 4, wherein the sealing member is integrally formed on the groove fixing member, and the sealing member has a pusher cap shape, so that the groove fixing member and the receiving member are The groove is interference fit.
The bottom plate member according to claim 4, wherein the sealing member is a sealing strip, and two sides of the groove fixing member are provided with strip-shaped grooves, and the sealing strip is placed in the groove And the tightness of the sealing strip cooperates with the inner wall of the receiving groove by the elasticity of the sealing strip.
The bottom plate member according to claim 6, wherein the sealant strip is a vulcanized rubber type sealant strip, a silicone rubber sealant strip, a neoprene sealant strip, a thermoplastic elastomer type sealant strip, and a TPV sealant. Strip or PVC sealant strip.
The bottom plate member according to claim 4, wherein the sealing member is a sponge strip bonded to both sides of the groove fixing member.
The base member according to claim 8, wherein the sponge strip comprises an EVA or PE foam substrate and a hot melt pressure sensitive adhesive coated on the substrate.
The bottom plate member according to claim 4, wherein the sealing member is a polyurethane, polyurethane (urea) or polyurea material, sprayed on both sides of the groove fixing member, and the elasticity of the sealing member is made Groove solid The fixing member closely matches the inner wall of the receiving groove.
The bottom plate member according to claim 1, wherein a difference between a height of an upper surface of the groove fixing member and an upper surface of the bottom plate unit main body is 0 to 1 mm.
The bottom plate member according to claim 11, wherein a height of an upper surface of the groove fixing member beyond an upper surface of the bottom plate unit main body is 0.5 mm.
The bottom plate member according to claim 1, wherein an inclination angle of an outer side surface of the bottom plate unit main body with respect to a vertical surface is 0° to 15°, and an inclination direction is inclined outward from the top to the bottom; Both sides of the groove fixing member have an inclination angle adapted to the outer side surface of the bottom plate unit main body.
The bottom plate member according to claim 13, wherein an inclination angle of an outer side surface of the bottom plate unit main body with respect to the vertical surface is 0 to 8 .
The floor member according to claim 1, wherein the bottom plate unit body comprises at least one carrying portion, the carrying portion comprising a panel and a plurality of webs extending downward from a bottom of the panel;

The bottom plate member further includes an end filling member that is filled at both end portions of the longitudinal direction of the bottom plate unit main body and located between adjacent two webs of the carrying portion.
The bottom plate member according to claim 15, wherein the end fillers are spaced apart from each other at both end portions of the bottom plate unit along a longitudinal direction of the bottom plate unit main body.
The bottom plate member according to claim 16, wherein the end filler has a length of 20 mm to 50 mm, and the interval between the adjacent end portions is 100 mm to 400 mm; the end filler is distributed at a distance. The area of the bottom surface of the bottom plate unit body within 3 m.
The bottom plate member according to claim 15, wherein the end filler is continuously filled in a region within 3 m from the end surface of the bottom plate unit main body in the longitudinal direction of the bottom plate unit main body.