Novel PPP concrete bridge floor floating wharf system

Abstract

The utility model relates to the technical field of floating bridges, and particularly discloses a novel PPP concrete bridge floor floating wharf system which is easy to construct and manufacture and low in cost, the novel PPP concrete bridge floor floating wharf system comprises a foam bottom layer, a steel structure assembly, an annular formwork and a concrete layer, and at least two installation grooves are formed in the upper surface of the foam bottom layer at intervals; the steel structure assembly comprises at least two rows of steel bar frames embedded into the mounting grooves in a one-to-one correspondence mode and a steel bar net located above the foam bottom layer and fixedly connected with the steel bar frames. The annular formwork is arranged on the upper surface of the foam bottom layer and surrounds the mounting grooves, inner cavities of the mounting grooves and the annular space of the annular formwork jointly form a pouring area, a plurality of penetrating holes communicated with the pouring area are formed in the face, back to the pouring area, of the annular formwork at intervals, and the top of the annular formwork is higher than the upper surface of the reinforcing mesh; the concrete layer is contained in the pouring area, the outer contour shape of the concrete layer is matched with the inner contour shape of the pouring area, and the annular formwork is fixed to the concrete layer through penetrating rods which penetrate through the penetrating holes and are inserted into the concrete layer.

Description

Technical Field

[0001] The utility model relates to the technical field of floating bridges, in particular to a novel PPP concrete bridge deck floating dock system. Background Art

[0002] A floating structure is a structure that floats on the water and provides a place for people to carry out activities near the shore. It is mainly used for yacht docks, pontoons, etc. Floating structures include plastic pontoons, steel structures or aluminum alloy frame floating structures, and reinforced concrete floating structures. Among them, the reinforced concrete floating structure used as a pontoon is more environmentally friendly than the materials used for aluminum alloy pontoons and steel structure pontoons, and has a longer durability. With good maintenance, the concrete pontoon can be used for more than 40 to 50 years. Therefore, the concrete pontoon has become the mainstream form of the current pontoon structure. At present, the concrete pontoons in the industry are mainly concrete outer frames, and a foam layer is set inside the frame to provide buoyancy to maintain the concrete outer frame on the water surface. The area of ​​the concrete outer frame in the above-mentioned pontoon structure is large, and the construction difficulty of concrete covering the outer surface of the foam layer is relatively large, which makes the production cost of the pontoon high and it is difficult to improve the market competitiveness of the pontoon structure. Utility Model Content

[0003] Based on this, it is necessary to provide a new PPP concrete bridge deck floating dock system with simple construction and low cost to address the above shortcomings.

[0004] A new type of PPP concrete bridge deck floating dock system, including:

[0005] A foam bottom layer, wherein the upper surface of the foam bottom layer is provided with at least two installation grooves spaced apart from each other;

[0006] A steel structure assembly, the steel structure assembly comprising at least two rows of steel bars embedded in the installation grooves in a one-to-one correspondence, and a steel mesh located above the foam bottom layer and fixedly connected to each steel bar;

[0007] An annular template, the annular template is arranged on the upper surface of the foam bottom layer and surrounds each of the installation grooves, the inner cavity of each installation groove and the inner ring space of the annular template jointly form a casting area, a surface of the annular template facing away from the casting area is provided with a plurality of through holes connected to the casting area at intervals, and the height of the top of the annular template is higher than the height of the upper surface of the steel mesh;

[0008] The concrete layer is contained in the casting area, and the outer contour of the concrete layer is adapted to the inner contour of the casting area, the upper surface of the concrete layer is flush with the upper surface of the annular formwork, the steel frame and the steel mesh are penetrated in the concrete layer, and the annular formwork is fixed to the concrete layer by a plurality of penetration rods which pass through the penetration holes one by one and are inserted into the concrete layer.

[0009] In one embodiment, the outer surface of the annular template is recessed toward the casting area to form an insertion groove located on the outside of the annular template and a convex column located on the inside of the annular template. The cross-section of the annular template is a bow-shaped structure, and the through hole is opened at the bottom of the insertion groove.

[0010] In one of the embodiments, the concrete bridge deck floating dock system further includes a fender adhesive layer, wherein the fender adhesive layer is fixed to the outer ring side of the annular formwork.

[0011] In one embodiment, the outer surface of the annular template is recessed to form a threaded hole on each side of the insertion groove, and the fender adhesive layer is fixed to the annular template by screws inserted into the threaded holes; or

[0012] The fender rubber layer is fixed on the annular template by means of a bolt structure inserted into the plug-in groove.

[0013] In one of the embodiments, the concrete bridge deck floating pier system further includes a mooring post located on the upper surface of the concrete layer and adjacent to the annular formwork, wherein the mooring post is fixed to the concrete layer by bolts pre-buried in the concrete layer.

[0014] In one of the embodiments, the bolts embedded in the concrete layer include a limit plate abutting against a side of the protruding column close to the foam bottom layer, a stud passing through the limit plate and extending from the upper surface of the concrete layer to pass through the bottom plate of the mooring post, a first nut fixed to the bottom of the stud and abutting against the limit plate, and a second nut fixed to the top of the stud and abutting against the bottom plate of the mooring post.

[0015] In one embodiment, each row of steel bars includes a plurality of U-shaped frames accommodated in the mounting groove and arranged at intervals, and connecting rods correspondingly connecting the U-shaped frames and extending along the length direction of the mounting groove. The height of the U-shaped frame is greater than the depth of the mounting groove. The U-shaped frame includes two vertical parts arranged opposite to each other and a horizontal part fixedly connected to the bottom of the two vertical parts. The ends of the two vertical parts are bent in the direction away from the mounting groove to form a connecting part connected to the steel mesh.

[0016] In one of the embodiments, the concrete bridge deck floating pier system further includes an anti-corrosion flexible protective layer covering the outer surface of the foam bottom layer.

[0017] In one of the embodiments, the ratio of the thickness of the foam bottom layer to the thickness of the concrete layer is greater than or equal to 3:1.

[0018] In one embodiment, the annular template is made of aluminum alloy.

[0019] The new PPP concrete bridge deck floating dock system of the utility model is implemented by opening a mounting groove on the upper surface of the foam bottom layer and arranging a steel structure component, arranging a ring template and a through rod for penetrating the ring template on the upper surface of the foam bottom layer, and arranging a concrete layer in the casting area surrounded by the ring template and the mounting groove, so that the concrete layer, the ring template and the foam bottom layer are firmly combined together to form a complete floating bridge structure. The surface layer of the floating bridge structure is a concrete structure, and the bottom layer is a foam structure to provide buoyancy support. On the one hand, the ring template is used as a protective structure of the upper part of the floating bridge and improves the strength of the floating bridge. On the other hand, the ring template is also used as a limit template when pouring the concrete layer, which reduces the construction difficulty of the floating bridge structure and reduces the concrete material. At the same time, it also reduces the overall production cost of the floating bridge structure, which is conducive to improving the market competitiveness of the floating bridge structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional structural schematic diagram of a novel PPP concrete bridge deck floating dock system from a first perspective in one embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional structural schematic diagram of a new PPP concrete bridge deck floating dock system from a second viewing angle in one embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of a novel PPP concrete bridge deck floating dock system from a third viewing angle in one embodiment of the utility model;

[0023] Figure 4 for Figure 3 A schematic diagram of a partially enlarged structure of part A in the illustrated embodiment;

[0024] Figure 5 A top view of a foam bottom layer in one embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a foam bottom layer from one perspective in one embodiment of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the foam bottom layer from another perspective in one embodiment of the utility model;

[0027] Figure 8 This is a schematic cross-sectional structure diagram of an annular template in one embodiment of the utility model;

[0028] Fig. 9 This is a schematic diagram of the structure of the connection between the annular template and the fender adhesive layer in one embodiment of the utility model;

[0029] Fig.10This is a schematic structural diagram of the connection between the annular template and the fender adhesive layer in another embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] Please combine Figure 1-8 The utility model discloses a new PPP (Public-Private Partnership) concrete bridge deck floating dock system with simple construction and low cost. The concrete bridge deck floating dock system includes a foam bottom layer 100, a steel structure component 200, an annular formwork 300 and a concrete layer 400. The foam bottom layer 100 is used to provide buoyancy for the entire concrete bridge deck floating dock system to float on the water surface. The steel structure component 200 is penetrated in the concrete layer 400 to improve the structural strength of the concrete layer 400. The annular formwork 300 is used to define the shape of the concrete layer 400 on the one hand, and on the other hand, the annular formwork 300 is also used to protect the edge of the concrete layer 400 to prevent the edge of the concrete layer 400 from being damaged due to bumps or collisions, so as to extend the service life of the concrete layer 400.

[0032] Specifically, in this embodiment, at least two installation grooves 110 are spaced apart on the upper surface of the foam bottom layer 100. Preferably, the upper surface of the foam bottom layer 100 is provided with one installation groove 110 each adjacent to the edges of both sides of the foam bottom layer 100. The steel structure assembly 200 includes at least two rows of steel bars 210 correspondingly embedded in the installation grooves 110 and a steel mesh 220 located above the foam bottom layer 100 and fixedly connected to each steel bar 210, so that a mesh steel structure is formed on the upper surface of the foam bottom layer 100 to provide a support skeleton for the concrete layer 400. The annular template 300 is arranged on the upper surface of the foam bottom layer 100 and surrounds each installation groove 110. The inner cavity of each installation groove 110 and the inner ring space of the annular template 300 together form a casting area. A plurality of through holes 310 communicating with the casting area are arranged at intervals on the side of the annular template 300 facing away from the casting area. The height of the top of the annular template 300 is higher than the height of the upper surface of the steel mesh 220. The annular template 300 is made of aluminum alloy material to further improve the strength of the edge of the concrete layer 400. The concrete layer 400 is accommodated in the casting area, and the outer contour shape of the concrete layer 400 is adapted to the inner contour shape of the casting area. The upper surface of the concrete layer 400 is flush with the upper surface of the annular template 300, so that after the concrete is cast in the casting area, the upper surface of the concrete layer 400 is higher than the upper surface of the steel mesh 220, so as to prevent the steel mesh 220 from being exposed. The steel frame 210 and the steel mesh 220 are inserted into the concrete layer 400, and the annular formwork 300 is fixed to the concrete layer 400 through a plurality of penetration rods 500 that pass through the penetration holes 310 and are inserted into the concrete layer 400, thereby achieving the fixing of the annular formwork 300 on the concrete layer 400. It should be noted that, in this embodiment, the outer contour length and width of the annular formwork 300 are respectively smaller than the length and width of the foam bottom layer 100, that is, the outer edge of the annular formwork 300 protrudes from the edge of the foam bottom layer 100 to reduce the impact and scratches on the foam bottom layer 100.

[0033] In the preparation process of the above concrete bridge deck floating dock system, firstly, the installation groove 110 is opened on the upper surface of the foam bottom layer 100, and the steel structure assembly 200 is arranged in the installation groove 110 and above the foam bottom layer 100. After the steel structure assembly 200 is arranged, the ring template 300 is arranged on the upper surface of the foam bottom layer 100, and each penetration rod 500 is correspondingly penetrated into each penetration hole 310 to be inserted into the inner ring space of the ring template 300. Then, the position of the ring template 300 on the foam bottom layer 100 is kept unchanged, and concrete is poured into the pouring area, so that the concrete fills the inner side of the ring template 300, the installation groove 110 and between the steel structure assembly 200, until the concrete surface is flush with the top surface of the ring template 300. After the concrete solidifies, a concrete layer 400 firmly combined with the foam bottom layer 100, the steel structure assembly 200, the penetration rod 500 and the ring template 300 is obtained. Due to the high density of the concrete layer 400, after being poured into the casting area, the concrete quickly flows downward and fills every corner of the casting area. When the concrete bridge deck floating dock system is placed in water, the foam bottom layer 100 is simultaneously subjected to the buoyancy of the water and the pressure of the concrete layer 400, so that the concrete layer 400 is firmly combined with the foam bottom layer 100. The mounting groove 110 on the foam bottom layer 100 provides a concave-convex matching position between the foam bottom layer 100 and the concrete layer 400, which can prevent the concrete layer 400 from shifting relative to the foam bottom layer 100, so as to ensure the stability of the overall structure of the concrete bridge deck floating dock system.

[0034] In this embodiment, a polystyrene foam with a length of 5000 mm, a width of 2000 mm, and a height of 600 mm is selected as the foam bottom layer 100. Two installation grooves 110 with a length of 5000 mm, a width of 200 mm, and a depth of 150 mm are provided on the foam bottom layer 100. The distance between the two installation grooves 110 is 1100 mm. In other embodiments, the size of the foam bottom layer 100 can be adjusted according to the actual application scenario. Accordingly, the depth and width of the installation groove 110 need to be adjusted synchronously according to the size change of the foam bottom layer 100 to prevent the concrete layer 400 from being inserted into the foam bottom layer 100 too shallowly, thereby causing the displacement problem between the concrete layer 400 and the foam bottom layer 100. In order to ensure the reliability of the concrete bridge deck floating pier system floating on the water surface and the stability of its surface structure, in one embodiment, the ratio of the thickness of the foam bottom layer 100 to the thickness of the concrete layer 400 is greater than or equal to 3:1. In this embodiment, the thickness of the concrete layer 400 refers to the distance between the upper surface of the concrete layer 400 and the lowest point on the lower surface of the concrete layer 400. In this way, while ensuring that the concrete bridge deck floating pier system has sufficient buoyancy, the thickness of the concrete layer 400 can meet the needs of daily activities of the floating bridge, reducing the possibility of overload damage to the concrete layer 400.

[0035] Please combine Figure 3 , Figure 4as well as Figure 8 In one embodiment, the outer surface of the ring template 300 is recessed toward the direction close to the pouring area to form a plug-in groove 320 located outside the ring template 300 and a convex column 330 located inside the ring template 300. The cross section of the ring template 300 is a bow-shaped structure, and the width of the upper surface of the ring template 300 is greater than the width of the lower surface of the ring template 300. Since the lower surface of the ring template 300 abuts against the upper surface of the foam bottom layer 100, the contact area between the ring template 300 and the foam bottom layer 100 is increased by increasing the width of the lower surface of the ring template 300, and the stability of the combination between the foam bottom layer 100 and the ring template 300 is improved. The through hole 310 is opened at the bottom of the plug-in groove 320. In this way, by setting the plug-in groove 320, the inner wall of the plug-in groove 320 guides the through rod 500, which reduces the difficulty of inserting the through rod 500 into the pouring area. In addition, in order to prevent the through rod 500 from falling off the annular formwork 300, a rod head is provided on the end of the through rod 500 away from the pouring area, and the aperture of the through hole 310 is smaller than the diameter of the rod head to prevent the connection between the annular formwork 300 and the concrete layer 400 from failing due to the rod head falling into the pouring area.

[0036] In this embodiment, the concrete bridge deck floating dock system further includes a fender rubber layer 600, which is fixed to the outer ring side of the annular formwork 300. It should be noted that the fender rubber layer 600 can be fixedly connected to the annular formwork 300 in a variety of alternative ways. Fig. 9 In one embodiment, the outer surface of the annular template 300 is recessed to form a threaded hole 340 on each side of the insertion groove 320, and the fender adhesive layer 600 is fixed to the annular template 300 by screws (or self-tapping screws) inserted into the threaded holes 340. In this case, the fender adhesive layer 600 can be a sheet structure attached to the outer surface of the annular template 300. Fig.10In another embodiment, the fender rubber layer 600 is fixed to the annular formwork 300 by means of a bolt structure inserted into the plug-in slot 320, wherein the width of the portion of the plug-in slot 320 close to the casting area is greater than the width of the portion of the plug-in slot 320 far from the casting area, thereby forming a step in the plug-in slot 320. The bolt structure includes a T-head screw 610, a gasket 620 and a bolt 630, wherein the screw head of the T-head screw 610 is embedded in the plug-in slot 320 and abuts against the step, the end of the shaft of the T-head screw 610 extends out of the plug-in slot 320 and passes through the fender rubber layer 600, the bolt 630 is located on the side of the fender rubber layer 600 facing away from the annular formwork 300 and is tightened on the end of the shaft of the T-head screw 610, and the side of the fender rubber layer 600 facing away from the annular formwork 300 is in contact with the bolt. A gasket 620 is provided between the two parts to ensure the stability of the installation of the fender rubber layer 600. In this embodiment, the fender rubber layer 600 is a sheet structure attached to the outer surface of the annular template 300. The fender rubber layer 600 can also be a hollow structure with a D-shaped cross section. The end of the rod of the T-head screw 610, the gasket 620 and the bolt 630 are all located in the cavity of the fender rubber layer 600, so as to provide a better shock absorption effect when the floating bridge structure contacts the water surface or other equipment at the water's edge. In the above two embodiments, the fender rubber layer 600 is made of rubber material to buffer the impact of the annular template 300 and reduce the scratches on the annular template 300.

[0037] In addition, the concrete bridge deck floating dock system further includes a mooring bollard 700 located on the upper surface of the concrete layer 400 and adjacent to the annular formwork 300. The mooring bollard 700 is used to provide a location for tying a ship's cable, so that the ship can dock at the concrete bridge deck floating dock system. In this embodiment, a plurality of mooring bollards 700 are arranged on the concrete layer 400 so as to moor a plurality of ships at the same time. The mooring bollard 700 is fixed to the concrete layer 400 by bolts 800 pre-embedded in the concrete layer 400, that is, the bolts 800 are first arranged in the pouring area, and then concrete is poured into the pouring area, so that the concrete layer 400 and the bolts 800 are firmly combined together.

[0038] Furthermore, the bolt 800 embedded in the concrete layer 400 includes a stop plate 810 abutting against a side of the boss 330 close to the foam bottom layer 100, a stud 820 penetrating the stop plate 810 and extending from the upper surface of the concrete layer 400 to pass through the bottom plate of the bollard 700, a first nut 830 fixed at the bottom of the stud 820 and abutting against the stop plate 810, and a second nut 840 fixed at the top of the stud 820 and abutting against the bottom plate of the bollard 700. Through the abutment of the stop plate 810 with the lower side of the boss 330, when the concrete is poured and solidified, the bolt 800 is firmly combined with the concrete layer 400 and fixed with the annular template 300, thereby improving the stability of the installation of the bollard 700 and preventing the bolt 800 from falling off the concrete layer 400 when the bollard 700 is pulled hard. In addition, the mooring post 700 can be fixed together with the bolt 800 and then concrete is poured in the pouring area, or the bolt 800 can be pre-buried in the concrete layer 400 and then the mooring post 700 is fixed to the solidified concrete layer 400 by the second nut 840. The order of these two methods is not limited.

[0039] In one embodiment, each row of steel bars 210 includes a plurality of U-shaped frames 211 accommodated in the installation groove 110 and arranged at intervals, and a connecting rod 212 correspondingly connecting each U-shaped frame 211 and extending along the length direction of the installation groove 110. The height of the U-shaped frame 211 is greater than the depth of the installation groove 110, so that the space between the steel mesh 220 and the upper surface of the foam bottom layer 100 can also be filled with concrete to improve the structural strength of the concrete layer 400. The U-shaped frame 211 includes two vertical parts arranged opposite to each other and a horizontal part fixedly connected to the bottom of the two vertical parts. The ends of the two vertical parts are bent in the direction away from the installation groove 110 to form a connecting part connected to the steel mesh 220. The connecting part can be fixed to the steel mesh 220 by welding, or the two can be tied together by wire, and the two can also be welded while being tied by wire, so as to improve the stability of the connection between the steel bars 210 and the steel mesh 220.

[0040] It should be noted that, in one embodiment, the concrete bridge deck floating dock system also includes an anti-corrosion flexible protective layer 900 covering the outer surface of the foam bottom layer 100, and the thickness of the anti-corrosion flexible protective layer 900 is 2.5 mm. Preferably, the anti-corrosion flexible protective layer 900 is made of polytetrafluoroethylene material. By coating the outer surface of the foam bottom layer 100 with a 2.5 mm thick anti-corrosion flexible protective layer 900 made of polytetrafluoroethylene material, the foam bottom layer 100 can be separated from the water area to prevent the foam particles from dispersing due to the long-term immersion of the foam bottom layer 100 in water, thereby extending the service life of the foam bottom layer 100. Of course, other anti-corrosion flexible materials can also be used to make the anti-corrosion flexible protective layer 900, which will not be repeated here.

[0041] The new PPP concrete bridge deck floating dock system of the utility model is implemented by opening a mounting groove 110 on the upper surface of the foam bottom layer 100 and arranging a steel structure assembly 200, arranging an annular formwork 300 and a penetration rod 500 penetrating the annular formwork 300 on the upper surface of the foam bottom layer 100, and arranging a concrete layer 400 in the casting area surrounded by the annular formwork 300 and the mounting groove 110, so that the concrete layer 400, the annular formwork 300 and the foam bottom layer 100 are firmly combined together to form a complete floating bridge structure. The surface layer of the floating bridge structure is a concrete structure, and the bottom layer is a foam structure to provide buoyancy support. On the one hand, the annular formwork 300 is used as a protective structure of the upper part of the floating bridge and improves the strength of the floating bridge. On the other hand, the annular formwork 300 is also used as a limiting formwork when pouring the concrete layer 400, which reduces the construction difficulty of the floating bridge structure and the reduction of concrete materials. At the same time, it also reduces the overall production cost of the floating bridge structure, which is conducive to improving the market competitiveness of the floating bridge structure.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A new type of PPP concrete bridge deck floating dock system, characterized in that: include: A foam bottom layer, wherein the upper surface of the foam bottom layer is provided with at least two installation grooves spaced apart from each other; A steel structure assembly, the steel structure assembly comprising at least two rows of steel bars embedded in the installation grooves in a one-to-one correspondence, and a steel mesh located above the foam bottom layer and fixedly connected to each steel bar; An annular template, the annular template is arranged on the upper surface of the foam bottom layer and surrounds each of the installation grooves, the inner cavity of each installation groove and the inner ring space of the annular template jointly form a casting area, a surface of the annular template facing away from the casting area is provided with a plurality of through holes connected to the casting area at intervals, and the height of the top of the annular template is higher than the height of the upper surface of the steel mesh; The concrete layer is contained in the casting area, and the outer contour of the concrete layer is adapted to the inner contour of the casting area, the upper surface of the concrete layer is flush with the upper surface of the annular formwork, the steel frame and the steel mesh are penetrated in the concrete layer, and the annular formwork is fixed to the concrete layer by a plurality of penetration rods which pass through the penetration holes one by one and are inserted into the concrete layer.

2. The new PPP concrete bridge deck floating dock system according to claim 1 is characterized in that: The outer surface of the annular template is recessed toward the casting area to form a plug-in groove located outside the annular template and a convex column located inside the annular template. The cross-section of the annular template is a bow-shaped structure, and the through hole is opened at the bottom of the plug-in groove.

3. The new PPP concrete bridge deck floating dock system according to claim 2 is characterized in that: It also includes a fender rubber layer, which is fixed on the outer ring side of the annular template.

4. The new PPP concrete bridge deck floating dock system according to claim 3 is characterized in that: The outer surface of the annular template is recessed to form a threaded hole on each side of the insertion groove, and the fender adhesive layer is fixed to the annular template by screws inserted into the threaded holes; or The fender rubber layer is fixed on the annular template by means of a bolt structure inserted into the plug-in groove.

5. The new PPP concrete bridge deck floating dock system according to claim 2 is characterized in that: The utility model also comprises a mooring post which is located on the upper surface of the concrete layer and adjacent to the annular formwork, and the mooring post is fixed on the concrete layer by bolts which are pre-buried in the concrete layer.

6. The new PPP concrete bridge deck floating dock system according to claim 5 is characterized in that: The bolt embedded in the concrete layer includes a limit plate abutting against a side of the protruding column close to the foam bottom layer, a stud penetrating the limit plate and extending from the upper surface of the concrete layer to pass through the bottom plate of the mooring post, a first nut fixed to the bottom of the stud and abutting against the limit plate, and a second nut fixed to the top of the stud and abutting against the bottom plate of the mooring post.

7. The new PPP concrete bridge deck floating dock system according to claim 1 is characterized in that: Each row of steel bar frames includes a plurality of U-shaped frames accommodated in the installation groove and arranged at intervals, and a connecting rod that connects the U-shaped frames one by one and extends along the length direction of the installation groove. The height of the U-shaped frame is greater than the depth of the installation groove. The U-shaped frame includes two vertical parts arranged opposite to each other and a horizontal part fixedly connected to the bottom of the two vertical parts. The ends of the two vertical parts are bent in the direction away from the installation groove to form a connecting part connected to the steel mesh.

8. The novel PPP concrete bridge deck floating dock system according to claim 1 is characterized in that: The utility model also comprises an anti-corrosion flexible protective layer covering the outer surface of the foam bottom layer.

9. The novel PPP concrete bridge deck floating dock system according to claim 1 is characterized in that: The ratio of the thickness of the foam bottom layer to the thickness of the concrete layer is greater than or equal to 3:

1.

10. The novel PPP concrete bridge deck floating dock system according to claim 1 is characterized in that: The annular template is made of aluminum alloy material.

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