Assembling structure based on composite bulwark and steel structure and assembling method thereof

Abstract

The invention provides an assembling structure based on a composite bulwark and a steel structure and an assembling method of the assembling structure. The assembly structure based on the composite bulwark and the steel structure comprises a steel base, a steel toggle plate, the composite bulwark and a glass fiber reinforced plastic piece, the steel toggle plate is fixedly connected with the steel base, the composite bulwark is located above the steel base, the steel toggle plate is located on the side face of the composite bulwark, and the glass fiber reinforced plastic piece is fixedly connected with the steel base. A gap between the composite bulwark and the steel base is filled with a plurality of glass fiber reinforced plastic pieces and an adhesive layer, a gap between the composite bulwark and the steel toggle plate is filled with a plurality of glass fiber reinforced plastic pieces and an adhesive layer, and the composite bulwark is fixedly connected with the steel base and the steel toggle plate through fasteners. According to the assembling structure, the problem that bulwark assembling is not smooth is solved on the premise that a steel structure and a composite material structure are not changed; according to the assembling structure, coordination and attractiveness of an installation area can be guaranteed, and the problem of frequent maintenance, disassembly and assembly caused by rubber aging in the prior art can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of hull structure design, and in particular to an assembly structure based on a composite material bulwark and a steel structure and an assembly method thereof. Background Art

[0002] With the continuous development of modern science and technology and the development and application of new materials technology, composite materials are gradually replacing metals with their light weight, high strength, good corrosion resistance, and great design flexibility. They are widely used in lightweight ship structure design, RCS performance improvement and other fields. However, since composite materials are mostly made by compression molding, the composite material structure after molding cannot be repaired and cut. When connected to the steel hull structure with complex precision, problems such as large connection gaps, mismatched interfaces, and obvious height differences are prone to occur. Considering that composite bulwarks are generally arranged in open-air locations on ships, in order to ensure the beauty of the overall appearance of the ship, it is necessary to ensure that the composite bulwarks are assembled flat.

[0003] By pasting fiberglass sheets on the surface of the composite bulwark, the composite bulwark can better meet the assembly requirements such as the outer surface of the bulwark is consistent with the vertical inclination angle of the steel bulwark, the top flange of the bulwark is flat and the transition is smooth, even when the curvature of the steel base and the steel bracket is complex and uncalculated. Summary of the invention

[0004] The main purpose of the present invention is to provide an assembly structure based on a composite material bulwark and a steel structure and an assembly method thereof, aiming to solve the problem of uneven bulwark assembly without changing the steel structure and the composite material structure.

[0005] To achieve the above object, the present invention provides an assembly structure based on a composite material bulwark and a steel structure, comprising a steel base, a steel bracket, a composite material bulwark and a fiberglass sheet, wherein: The steel bracket is fixedly connected to the steel base, the composite material bulwark is located above the steel base, the steel bracket is located on the side of the composite material bulwark, the gap between the composite material bulwark and the steel base is filled with multiple fiberglass sheets and adhesive layers, the gap between the composite material bulwark and the steel bracket is filled with multiple fiberglass sheets and adhesive layers, and the composite material bulwark is fixedly connected to the steel base and the steel bracket by fasteners.

[0006] Preferably, the fiberglass sheet is provided with through holes for fasteners to pass through.

[0007] Preferably, the adhesive layer comprises vinyl resin.

[0008] Preferably, through holes for fasteners to pass through are provided on the flanges around the composite bulwark, and threaded holes corresponding to the through holes on the composite bulwark are provided on the steel base and the steel bracket.

[0009] Preferably, the thickness of the fiberglass sheet is 1 mm to 3 mm.

[0010] The present invention further proposes an assembly structure based on the composite material bulwark and the steel structure, comprising the following steps: Place the composite bulwark on the steel base, and pre-fix the composite bulwark to the steel base and the steel bracket using fastening tools; Fill the gaps between the composite bulwark and the steel base and steel bracket with fiberglass sheets of corresponding size according to the shape of the gaps between the composite bulwark and the steel base and steel bracket to ensure that the composite bulwark and the steel base and steel bracket can fit tightly together; Remove the fastening tools, all FRP sheets and composite bulwarks, and mark the position and shape of the FRP sheets; Drill holes in the FRP sheet and apply an adhesive layer, and bond the FRP sheet to the flange sides of the composite bulwark at the marked positions; The dried composite bulwark bonded with the fiberglass sheet is installed on the steel base, and the composite bulwark is fixedly connected to the steel base and the steel bracket by fasteners.

[0011] Preferably, the fastening tool comprises a G-clamp and a bolt.

[0012] Preferably, after the fiberglass sheet is bonded to the flange sides of the composite bulwark, paint is sprayed on the surface of the fiberglass sheet after it is dried; before the fiberglass sheet is bonded, the surface of the composite bulwark is roughened to increase the roughness of the contact surface.

[0013] Preferably, when the composite bulwark is fixedly connected to the steel base and the steel bracket by fasteners, the fasteners are passed through the through holes in the composite bulwark, the steel base and the steel bracket and the fiberglass sheet.

[0014] Preferably, when the glass fiber reinforced plastic sheets of corresponding sizes are filled according to the shape of the gaps between the composite material bulwark and the steel base and the steel bracket, the glass fiber reinforced plastic sheets are selectively polished according to the shape of the gaps.

[0015] The assembly structure based on composite material bulwark and steel structure proposed by the present invention has the following beneficial effects: 1. Solve the problem of uneven bulwark assembly without changing the steel structure and composite material structure; 2. This assembly structure can not only ensure the coordination and beauty of the installation area, but also avoid the frequent maintenance and disassembly problems caused by rubber aging in the prior art; 3. By pasting fiberglass sheets on the surface of the composite bulwark, the composite bulwark can better meet the assembly requirements such as the outer surface of the bulwark is consistent with the vertical inclination angle of the steel bulwark, the top flange of the bulwark is flat and the transition is smooth, even when the curvature of the steel base and the steel bracket is complex and uncalculated; 4. This assembly structure has the advantages of simple structure, easy installation and stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of the assembly structure based on a composite material bulwark and a steel structure of the present invention; Figure 2 The figure is a schematic flow chart of an assembly method of an assembly structure based on a composite material bulwark and a steel structure according to the present invention.

[0017] In the figure, 1-steel base, 11-face plate, 12-web plate, 2-steel bracket, 3-composite bulwark, 4-fiberglass sheet.

[0018] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0020] It should be noted that in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] The invention provides an assembly structure based on a composite material bulwark and a steel structure.

[0022] Reference Figure 1 In this preferred embodiment, an assembly structure based on a composite material bulwark and a steel structure includes a steel base 1 (the steel base 1 includes a panel 11 and a web 12), a steel bracket 2, a composite material bulwark 3 and a fiberglass sheet 4, wherein: The steel bracket 2 is fixedly connected to the steel base 1 (the two are connected by welding), the composite bulwark 3 is located above the steel base 1, the steel bracket 2 is located on the side of the composite bulwark 3, the gap between the composite bulwark 3 and the steel base 1 is filled with multiple glass fiber reinforced plastic sheets 4 and an adhesive layer, the gap between the composite bulwark 3 and the steel bracket 2 is filled with multiple glass fiber reinforced plastic sheets 4 and an adhesive layer, and the composite bulwark 3 is fixedly connected to the steel base 1 and the steel bracket 2 by fasteners.

[0023] Since the steel base 1 panel is a double curvature structure parallel to the hull deck, and the welding deformation and error generated during the welding of the steel structure, the steel base 1 panel and the bulwark bottom flange cannot be completely fitted in some areas. Therefore, it is necessary to use a glass fiber reinforced plastic sheet 4 to fill the gap.

[0024] Furthermore, through holes for fasteners to pass through are provided on the glass fiber reinforced plastic sheet 4. The adhesive layer includes vinyl resin.

[0025] Through holes for fasteners to pass through are provided on the flanges around the composite bulwark 3 , and threaded holes corresponding to the through holes on the composite bulwark 3 are provided on the steel base 1 and the steel bracket 2 .

[0026] In this embodiment, the thickness of the glass fiber reinforced plastic sheet 4 is 1 mm to 3 mm, and the main material of the glass fiber reinforced plastic sheet 4 is glass fiber. The length of the glass fiber reinforced plastic sheet 4 is 1000 mm to 2000 mm, and the width is 80 mm to 150 mm.

[0027] The assembly process of the composite bulwark and steel structure is as follows: 1. Pre-fix and connect the steel base 1 and the steel bracket 2 by fasteners; 2. Place the composite bulwark 3 on the steel base 1, and pre-fix the composite bulwark 3 to the steel base 1 and the steel bracket 2 by means of fastening tools (using a plurality of G-shaped clamps); 3. Fill the glass fiber reinforced plastic sheet 4 of corresponding size according to the shape of the gap between the composite bulwark 3, the steel base 1 and the steel bracket 2, so as to ensure that the composite bulwark 3, the steel base 1 and the steel bracket 2 can fit tightly; 4. Remove the fastening tools, all the fiberglass sheets and the composite bulwark 3, and mark the position and shape of the fiberglass sheets 4; 5. Apply adhesive layers on all the fiberglass sheets 4 and adhere the fiberglass sheets 4 to the flange sides of the composite bulwark 3 according to the marked positions; 6. Install the dried composite bulwark 3 bonded with the fiberglass sheet 4 on the top of the steel base 1, and fix the composite bulwark 3 to the steel base 1 and the steel bracket 2 by fasteners.

[0028] The assembly structure based on the composite material bulwark and the steel structure proposed in this embodiment has the following beneficial effects: 1. Solve the problem of uneven bulwark assembly without changing the steel structure and composite material structure; 2. This assembly structure can not only ensure the coordination and beauty of the installation area, but also avoid the frequent maintenance and disassembly problems caused by rubber aging in the prior art; 3. By pasting the glass fiber reinforced plastic sheet 4 on the surface of the composite bulwark 3, the composite bulwark 3 can better meet the assembly requirements such as the vertical inclination angle of the outer surface of the bulwark is consistent with that of the steel bulwark, the top flange of the bulwark is flat and the transition is smooth, even when the curvature of the steel base 1 and the steel bracket 2 is complex and uncalculated; 4. This assembly structure has the advantages of simple structure, easy installation and stable structure.

[0029] The present invention further proposes an assembly method of an assembly structure based on a composite material bulwark and a steel structure.

[0030] Reference Figure 2 In this preferred embodiment, an assembly structure based on the composite material bulwark and the steel structure comprises the following steps: Step S10, placing the composite bulwark 3 on the steel base 1, and pre-fixing the composite bulwark 3 to the steel base 1 and the steel bracket 2 by means of a fastening tool; Step S20, filling the glass fiber reinforced plastic sheet 4 of corresponding size according to the shape of the gap between the composite material bulwark 3 and the steel base 1 and the steel bracket 2, so as to ensure that the composite material bulwark 3 and the steel base 1 and the steel bracket 2 can be closely fitted; Step S30, disassembling the fastening tools, all the fiberglass sheets and the composite bulwark 3, and marking the position and shape of the fiberglass sheets 4; Step S40, drilling holes in the glass fiber reinforced plastic sheet 4 and applying an adhesive layer (the positions of the holes are set corresponding to the positions of the holes on the flange of the composite bulwark 3), and bonding the glass fiber reinforced plastic sheet 4 to the flange sides of the composite bulwark 3 at the marked positions; Step S50, installing the dried composite bulwark 3 bonded with the fiberglass sheet 4 on the top of the steel base 1, and fixing the composite bulwark 3 to the steel base 1 and the steel bracket 2 by fasteners (stainless steel bolts may be used).

[0031] Specifically, in step S10, the fastening tool includes a G-shaped clamp and a bolt. A plurality of G-shaped clamps can be used to achieve a pre-fixed connection between the composite bulwark 3 and the steel base 1 and the steel bracket 2. The G-shaped clamps are clamped to fix the composite bulwark 3 and the panel or bracket of the steel base 1.

[0032] In step S50, after the fiberglass sheet 4 is bonded to the flange sides of the composite bulwark 3, paint is sprayed on the surface of the fiberglass sheet 4 after it is dried; before the fiberglass sheet 4 is bonded, the surface of the composite bulwark 3 is roughened to increase the roughness of the contact surface and improve the bonding force between the fiberglass sheet 4 and the bulwark.

[0033] When the composite bulwark 3 is fixedly connected to the steel base 1 and the steel bracket 2 by fasteners, the fasteners are passed through the through holes of the composite bulwark 3, the steel base 1, the steel bracket 2 and the glass fiber reinforced plastic sheet.

[0034] When the glass fiber reinforced plastic sheet 4 of corresponding size is filled according to the shape of the gap between the composite bulwark 3 and the steel base 1 and the steel bracket 2, the glass fiber reinforced plastic sheet 4 is selectively polished according to the shape of the gap. During polishing, the pre-assembly process can be repeated multiple times until the composite bulwark 3 can fit tightly with the steel structure.

[0035] In the process of filling the glass fiber reinforced plastic sheet, the glass fiber reinforced plastic sheet 4 is pasted on the surface of the composite material bulwark 3 according to the approximate size and curvature of the gap.

[0036] The assembly method proposed by the present invention can ensure the coordination and beauty of the installation area and avoid the frequent maintenance and disassembly caused by rubber aging. The assembly method fully considers various problems that may be encountered in the actual assembly process, and has been proven to be effective through engineering practice, greatly improving the adaptability between the composite bulwark 3 and the steel hull structure.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An assembly structure based on composite bulwarks and steel structures, characterized in that: It includes steel base, steel bracket, composite bulwark and fiberglass sheet, among which: The steel bracket is fixedly connected to the steel base, the composite material bulwark is located above the steel base, the steel bracket is located on the side of the composite material bulwark, the gap between the composite material bulwark and the steel base is filled with multiple fiberglass sheets and adhesive layers, the gap between the composite material bulwark and the steel bracket is filled with multiple fiberglass sheets and adhesive layers, and the composite material bulwark is fixedly connected to the steel base and the steel bracket by fasteners.

2. The assembled structure based on composite material bulwark and steel structure as claimed in claim 1, characterized in that: The glass fiber reinforced plastic sheet is provided with through holes for fasteners to pass through.

3. The assembled structure based on composite material bulwark and steel structure as claimed in claim 1, characterized in that: The adhesive layer includes vinyl resin.

4. The assembled structure based on composite material bulwark and steel structure as claimed in claim 1, characterized in that: Through holes for fasteners to pass through are provided on the flanges around the composite bulwark, and threaded holes corresponding to the through holes on the composite bulwark are provided on the steel base and the steel bracket.

5. The assembled structure based on composite material bulwark and steel structure according to any one of claims 1 to 4, characterized in that: The thickness of the glass fiber reinforced plastic sheet is 1 mm to 3 mm.

6. An assembled structure based on a composite material bulwark and a steel structure according to any one of claims 1 to 5, characterized in that: The following steps are involved: Place the composite bulwark on the steel base, and pre-fix the composite bulwark to the steel base and the steel bracket using fastening tools; Fill the gaps between the composite bulwark and the steel base and steel bracket with fiberglass sheets of corresponding size according to the shape of the gaps between the composite bulwark and the steel base and steel bracket to ensure that the composite bulwark fits closely with the steel base and steel bracket; Remove the fastening tools, all FRP sheets and composite bulwarks, and mark the position and shape of the FRP sheets; Drill holes in the FRP sheet and apply an adhesive layer, and bond the FRP sheet to the flange sides of the composite bulwark at the marked positions; The dried composite bulwark bonded with the fiberglass sheet is installed on the steel base, and the composite bulwark is fixedly connected to the steel base and the steel bracket by fasteners.

7. The assembled structure based on composite material bulwark and steel structure as claimed in claim 6, characterized in that: The fastening tool includes a G-shaped clamp and a bolt.

8. The assembled structure based on composite material bulwark and steel structure as claimed in claim 6, characterized in that: After the FRP sheet is bonded to the flange sides of the composite bulwark, paint is sprayed on the surface of the FRP sheet after it dries; before the FRP sheet is bonded, the surface of the composite bulwark is roughened to increase the roughness of the contact surface.

9. The assembled structure based on composite material bulwark and steel structure as claimed in claim 6, characterized in that: When the composite material bulwark is fixedly connected with the steel base and the steel bracket by the fastener, the fastener is passed through the through holes on the composite material bulwark, the steel base, the steel bracket and the glass fiber reinforced plastic sheet.

10. The assembled structure based on composite material bulwark and steel structure as claimed in claim 6, characterized in that: When the glass fiber reinforced plastic sheets of corresponding sizes are filled according to the shape of the gaps between the composite material bulwark and the steel base and the steel bracket, the glass fiber reinforced plastic sheets are selectively polished according to the shape of the gaps.

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