A concealed flexible connection system and method for orthogonal laminated veneer lumber walkways

Abstract

The application discloses a concealed flexible connecting system and method of orthogonal laminated wood walkway, which comprises a first connecting structure and a second connecting structure, the first connecting structure is arranged between a panel, a wood keel and a concrete base layer, the panel can be horizontally slid along the wood keel and buckled to form a concealed flexible connecting structure of the base layer-keel-panel through the first connecting structure, the second connecting structure is arranged between adjacent panels and fixed on the wood keel, the second connecting structure is arranged along the joint of the adjacent panels, the bottom of the second connecting structure is connected with the adjacent panels to form a waterproof flexible connecting structure between the joints of the panels. The concealed flexible connection of the base layer-keel-panel along the keel direction and the waterproof flexible connection between the joints of the panels are designed, the concealed waterproof flexible connection of the orthogonal laminated wood panel is realized, and the connecting system has the characteristics of flatness, beauty, concealed connection, water blocking and water guiding.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a structural connection system and construction method suitable for large-area orthogonal laminated plywood panels as wooden walkway panels. Background Technology

[0002] Wooden walkways are popular due to their superior aesthetics and comfort. However, due to the scarcity of timber resources, the commonly used materials for wooden walkways are currently anti-corrosion boards, wood-plastic composite boards, and even wood-grain imitation materials. These materials have problems such as reduced comfort or poor durability.

[0003] Currently, pedestrian boardwalks are typically constructed by sequentially laying narrow wooden planks (approximately 10-15cm wide) fixed to a joist along the road using screws. This method often suffers from low construction efficiency and poor construction quality. Furthermore, these boardwalks generally exhibit poor durability; as the planks age, they warp and deform, and corrosion of the metal connectors causes the connection system to fail, leading to planks detaching or shifting. This severely impacts the safety and usability of the boardwalk and also damages the landscape.

[0004] The most common connection system for wooden boardwalks involves fixing the lower wooden or steel joists to the concrete floor or concrete strip base using angle brackets. The wooden planks are then connected to the joists with screws, leaving small gaps between the planks for drainage and to allow for deformation. This type of connection is prone to failure if the screws rust or the planks warp. Alternatively, for customized wood-plastic composite roofing panels, special connectors (such as Z-shaped ones) can be fixed to the joists, allowing for quick interlocking of the planks. However, this type of connection has poor durability and reliability.

[0005] Therefore, it is proposed to utilize small-diameter timber from thinning operations during the tending of plantations to prepare cross-laminated plywood (CLP) for use as boardwalk panels. CLP panels are larger in size, which improves the flatness of the boardwalk, significantly increases paving efficiency, and offers better comfort and durability compared to wood-plastic composite (WPC) walkways. However, using large-format CLP panels as boardwalk panels also presents new requirements for its connection system and installation methods, such as greater replacement redundancy, concealed connections, and better waterproofing and drainage measures. Currently, the application of large-format CLP boardwalks is limited, and conventional WPC walkway connection systems cannot fully meet the connection requirements of large-format CLP boardwalks; a matching connection system and connectors are not yet available.

[0006] Therefore, considering the performance requirements of large-area orthogonal laminated timber (OLP) boardwalks, there is an urgent need for a concealed flexible connection system and its construction method for OLP boardwalks, which is a problem that needs to be solved in this field. Summary of the Invention

[0007] In view of the above-mentioned technical defects in the existing large-area orthotropic plywood (OPP) plywood walkway connection system, this invention provides a concealed flexible connection system for OPP plywood walkways, which can realize concealed, waterproof, and flexible connection of OPP plywood boards. On this basis, a construction method for the concealed flexible connection system of OPP plywood walkways is also provided, effectively overcoming the problems existing in the prior art.

[0008] To achieve the above objectives, the present invention provides a concealed flexible connection system for orthogonal laminated timber walkways, comprising a first connection structure and a second connection structure. The first connection structure is disposed between the panel, the timber joists, and the concrete base. The panel can be horizontally slid along the timber joists and snapped together to form a concealed flexible connection structure of base-joists-panel. The second connection structure is disposed between adjacent panels and fixed to the timber joists. The second connection structure covers the joints between adjacent panels, and the bottom two sides of the second connection structure are snapped together with the adjacent panels to form a waterproof flexible connection structure between the joints.

[0009] Furthermore, the first connecting structure includes a hook bracket and a flat channel steel. The hook brackets are arranged in pairs at equal intervals along the longitudinal direction of the wooden joists, and the flat channel steel is set at the bottom of the panel, which drives the panel to slide along the wooden joists and is snapped together with the hook brackets.

[0010] Furthermore, the hook bracket includes a transverse surface, a first longitudinal surface, and a second longitudinal surface; the transverse surface is set close to the side wall of the wooden joist, the first longitudinal surface is placed on the concrete base and fixedly connected to the concrete base, and the second longitudinal surface is flush with the top surface of the wooden joist and forms a buckle that cooperates with the flat channel steel.

[0011] Furthermore, the cross-section of the flat channel steel is a non-standard channel shape.

[0012] Furthermore, a vibration damping pad is provided between the flat channel steel and the wooden keel.

[0013] Furthermore, the second connection structure includes a snap-fit ​​connector and a waterproof cover plate. The snap-fit ​​connector is placed between the board seams and set on the wooden keel, and its two sides are respectively snap-fitted to the adjacent panels. One end of the waterproof cover plate covers the top of the adjacent panel, and the other end is placed in the snap-fit ​​connector.

[0014] Furthermore, the cross-section of the snap-fit ​​connector is a Z-shaped opening with a narrowing, and it includes a first transverse surface, a second transverse surface and a third transverse surface. The first transverse surface is disposed on the wooden keel, and the second transverse surface and the third transverse surface are respectively snap-fitted to the adjacent panel.

[0015] Furthermore, the waterproof cover plate has a T-shaped cross-section, with the upper panel covering the top of the adjacent panel, and the other end is provided with a horizontal clamping plate and placed in the cavity formed by the Z-shaped buckle connector.

[0016] Furthermore, the joint between the upper panel of the waterproof cover and the adjacent panel is coated with sealant.

[0017] To achieve the above objectives, the present invention provides a construction method for a concealed flexible connection system of orthogonal laminated timber walkways, the construction method comprising the following steps:

[0018] (1) Lay out the lines on the concrete floor and pour the concrete cushion layer;

[0019] (2) The wooden keel is placed in the center of the concrete squatting pad layer, and the curved corner brackets are set on both sides for limiting. The stainless steel curved corner brackets are fixed to the concrete squatting pad layer.

[0020] (3) Fix the flat channel steel to the back of the panel, and place a fixed rubber vibration damping pad inside the flat channel steel;

[0021] (4) Slide the panel with the flat channel steel on the back into the designated position along the keel direction and the curved corner bracket groove, and place it on the wooden keel;

[0022] (5) At the side seam of the board edge, one side flange of the zig-shaped buckle connector is inserted into the side groove of the panel, and the bottom edge of the zig-shaped buckle connector is fixed to the wooden keel;

[0023] (6) Install the next panel according to steps (3) to (4), and insert the front edge of the panel into the flange of the other side of the Z-shaped buckle connector;

[0024] (7) The T-shaped waterproof cover is inserted into the zig-shaped buckle connector between the board seams and then the waterproof cover and the edge of the wooden board are sealed with sealant and pressed down to fix them.

[0025] (8) Repeat steps (3) to (7) in sequence until the wooden boardwalk is completed.

[0026] The concealed flexible connection system and method for orthogonal laminated timber walkways provided by this invention achieves concealed, waterproof, and flexible connections of orthogonal laminated timber boards by designing a concealed flexible connection between the base, keel, and panel along the keel direction and a waterproof flexible connection between the board joints. This connection system has the characteristics of being flat and beautiful, concealed connection, deformation release, waterproof and water-conducting, stable and durable, and can be widely used in outdoor wooden walkways and indoor wooden floors with large-area wood panels. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the overall structure of the concealed flexible connection system of the orthogonal laminated timber walkway;

[0029] Figure 2 for Figure 1 A three-dimensional schematic diagram of the first connecting structure in the middle;

[0030] Figure 3 for Figure 1 A cross-sectional schematic diagram of the first connecting structure in the middle;

[0031] Figure 4 for Figure 1 A three-dimensional schematic diagram of the second connecting structure in the middle;

[0032] Figure 5 for Figure 1 A cross-sectional schematic diagram of the second connecting structure.

[0033] The following are the component labels in the attached diagram:

[0034] 100. Concrete base 200. Wooden joists 300. Panel 400. First connecting structure 500. Second connecting structure 410. Hook bracket 411. Transverse surface 412. First longitudinal surface 413. Second longitudinal surface 420. Flat channel steel 430. First fastener 440. Vibration damping pad 510. Snap-fit ​​connector 511. First transverse surface 512. Second transverse surface 513. Third transverse surface 520. Waterproof cover plate 521. Horizontal clamping plate 530. Third fastener 540. Sealant. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0036] To address the aforementioned technical deficiencies in existing large-format orthogonal laminated timber (OLP) walkway connection systems, this invention provides a concealed flexible connection system for OLP walkways. This system achieves concealed, waterproof, and flexible connections between OLP boards through structural design of concealed flexible connections along the joist direction (base-joist-panel) and waterproof flexible connections between board seams. This connection system features a smooth and aesthetically pleasing appearance, concealed connection, deformation release, waterproofing and water conduction, and stability and durability. It can be widely applied to outdoor wooden walkways and indoor wooden floors with large-format plywood panels.

[0037] The concealed flexible connection system for orthogonal laminated timber walkways provided by this invention is described in [reference needed]. Figure 1It includes several concrete bases 100, several wooden joists 200, several panels 300, several first connecting structures 400, and several second connecting structures 500.

[0038] Furthermore, several concrete bases 100 are laid out on the concrete floor and poured along the entire wooden walkway. Wooden joists 200 are placed in the center of each concrete base 100 and fixed on both sides by fasteners.

[0039] Here, the concrete base 100 is preferably plain concrete, which is poured on the concrete base layer to achieve the effect of adjusting the height of the wooden walkway panel 300 and preventing the wooden joists 200 from being soaked in water.

[0040] Meanwhile, the wood joists 200 are preferably made of solid wood or cross-laminated plywood, which have good environmental protection and durability. In addition, the cross-sectional width of the wood joists 200 is smaller than the cross-sectional width of the concrete base 100, so that the wood joists 200 can be placed in the middle of the plain concrete base 100.

[0041] Several panels 300 cover the wooden joists 200 and are connected to the wooden joists 200 and the concrete base 100 through the first connecting structure 400 in this scheme, and adjacent panels 300 are connected to each other through the second connecting structure 500.

[0042] The panel 300 here is preferably made of cross-laminated plywood, which has excellent environmental friendliness and durability, and can ensure the strength and stability of the entire walkway.

[0043] The specific structure of the orthogonal laminated timber walkway, which consists of several concrete bases 100, several wooden joists 200, and several panels 300, is well known to those skilled in the art and will not be described in detail here.

[0044] Furthermore, the first connection structure 400 in this solution is a concealed flexible connection structure of base-keel-panel, which is used to connect the concrete base 100, keel 200 and panel 300.

[0045] See Figures 2-3 The first connecting structure 400 includes a hook bracket 410 and a flat channel steel 420.

[0046] Among them, the hook corner brackets 410 are arranged in pairs at equal intervals along the longitudinal direction of the wooden keel 200. The hook corner brackets 410 are U-shaped structures with unequal sides in cross-section. The hook corner brackets 410 include a transverse surface 411, a first longitudinal surface 412, and a second longitudinal surface 413.

[0047] The horizontal surface of the hook bracket 410 is at the same height as the wooden joist 200, and the horizontal surface of the hook bracket 410 is set close to the side wall of the wooden joist 200.

[0048] The first longitudinal surface 412 is placed on the concrete base 100, and the edge of the first longitudinal surface 412 is flush with the edge of the concrete base 100. The second longitudinal surface 413 is flush with the top surface of the wooden joist 200 and is connected to the flat channel steel 420.

[0049] Furthermore, each hook bracket 410 has several first fasteners 430 on its first longitudinal surface 412 to fix the hook bracket 410 to the concrete base 100. These fasteners can set the hook bracket 410 on both sides of the wooden joist 200, clamp the wooden joist 200, and play a limiting role. At the same time, the second longitudinal surface 413 of the hook bracket 410 can form a buckle that cooperates with the flat channel steel 420.

[0050] Furthermore, the cross-section of the flat channel steel 420 is a non-standard channel shape, which is fixed to the back of the panel by the second fastener. The length of the flat channel steel 420 is consistent with the width of the single panel of the panel 300, which can fully connect the panel 300 and the wooden keel 200 through the flat channel steel 420.

[0051] The direction and spacing of the flat channel steel 420 are consistent with those of the wooden joists 200. Therefore, during assembly, the flat channel steel 420 drives the panel 300 to slide horizontally along the direction of the wooden joists 200, so that the flat channel steel 420 and the second longitudinal surface 413 of the hook bracket 410 interlock and lock together, realizing a concealed flexible connection between the base, joists and panel. The concealed connection method eliminates the need for screws on the road surface, improving the aesthetics and safety of the wooden walkway. Secondly, the flexible connection can effectively redundancy the expansion and deformation that the wooden boards may undergo under high temperature and high humidity, release horizontal stress, avoid the warping of the wooden boards caused by deformation and stress concentration leading to connection failure, and improve the durability and safety of the wooden walkway.

[0052] Furthermore, to prevent the top panel 300 from vibrating against the wooden joists 200 due to external factors, a vibration damping pad 440 is provided between the flat channel steel 420 and the wooden joists 200. The vibration damping pad 440 is laid in the inner end face of the flat channel steel 420 and fixed to the inner end face of the flat channel steel 420. During assembly, it slides horizontally along the wooden joists 200 along with the flat channel steel 420, and the vibration damping pad 440 absorbs a certain amount of the walking vibration of the top panel 300.

[0053] It should be noted that, in order to ensure the strength and durability of the overall connection, the hook bracket 410 and the flat channel steel 420 are preferably made of stainless steel; at the same time, the surfaces of the first fastener 430 and the second fastener are preferably treated with anti-corrosion to provide corrosion resistance to the components; secondly, the vibration damping pad 440 is preferably made of neoprene rubber and its composite rubber with natural rubber, which has good environmental protection and vibration damping performance.

[0054] Furthermore, the second connection structure 500 in this solution is a waterproof flexible connection structure between the panel seams, which is used for the mating connection structure between the panels 300 and the panels 300.

[0055] See Figures 4-5 The second connection structure 500 includes a snap-fit ​​connector 510 and a waterproof cover plate 520, which cooperate with the snap-fit ​​connector 510 and the waterproof cover plate 520 to form a connection structure between the plate seams.

[0056] The snap-fit ​​connector 510 has a cross-section that narrows into a zigzag shape, and includes a first transverse surface 511, a second transverse surface 512, and a third transverse surface 513.

[0057] The first transverse surface 511 of the snap fastener 510 is narrower than the gap between the panels 300 and 300. The snap fastener 510 can be placed between the panel gaps and set on the wooden joists 200. It can also be connected to the wooden joists 200 with the third fastener 530.

[0058] The width of the second transverse surface 512 and the third transverse surface 513 of the snap-fit ​​connector 510 is greater than the width between the board seams. A groove is provided on the side of the panel 300 at the same horizontal height as the second transverse surface 512 and the third transverse surface 513 of the snap-fit ​​connector 510. The second transverse surface 512 and the third transverse surface 513 of the snap-fit ​​connector 510 can be placed in the groove of the two side panels 300 to achieve a flexible connection between the panels 300. The flexible connection can effectively redundancy the expansion and deformation of the wooden board under high temperature and high humidity, release horizontal stress, avoid the warping of the wooden board caused by the deformation of the wooden board and the stress concentration that leads to connection failure, and improve the durability and safety of the wooden boardwalk.

[0059] The waterproof cover 520 has a T-shaped cross-section and its length is arranged along the entire length of the board joint. The waterproof cover 520 covers the board joint and can isolate water between the board joints to prevent water from falling into the walkway.

[0060] The edge of the waterproof cover 520 can preferably be thinned by beveling or milling grooves on the edge of the panel, with the thickness being the same as that of the T-shaped waterproof cover 520. This ensures that the top surface of the T-shaped waterproof cover 520 is flush with the top surface of the panel 300 after installation. This allows rainwater to be dispersed and flowed in an orderly manner on the surface of the panel 300, preventing rainwater from accumulating on the panel surface and preventing rainwater from carrying mud and sand to seep through the gaps in the panels and accumulate under the panels, causing corrosion of the keel and connectors. This improves the usability and durability of the wooden walkway.

[0061] In addition, it is preferable to apply waterproof sealant 540 to the joint between the waterproof cover plate 520 and the panel 300 and press it down firmly to fix the top edge of the wooden board at the joint, thereby further improving the waterproofness of the waterproof cover plate 520.

[0062] Its bottom has a horizontal retaining plate 521, the width of which is between the narrow opening spacing of the Z-shaped buckle connector 510 and the bottom edge width, which can restrict the T-shaped waterproof cover 520 from being pulled out.

[0063] It should be noted that, to ensure the overall durability of the connection, both the snap-fit ​​connectors and the waterproof cover are made of stainless steel.

[0064] The concealed flexible connection system of the orthogonal plywood glulam walkway constructed by the above scheme is illustrated below with examples of its construction methods in specific applications. These construction methods are merely illustrative and do not constitute a limitation on the scheme itself.

[0065] (1) Lay out the lines on the concrete floor and pour a 100mm concrete cushion layer;

[0066] In step (1), the concrete squatting layer 100 is made of plain concrete. Its width is equal to the sum of the width of the wooden keel 200 and the length of twice the length of the stainless steel curved corner bracket 412. The height can be designed according to the height difference between the concrete floor and the wooden walkway plane.

[0067] (2) The wooden keel 200 is placed in the center of the concrete squatting pad 100, and the two sides are limited by stainless steel bent corner brackets 410. The stainless steel bent corner brackets 410 are fixed to the concrete squatting pad 100 by expansion bolts 430.

[0068] In step (2), after the stainless steel curved corner bracket 410 is installed, the curved corner bracket 410 is at the same height as the wooden keel 200, the long limb 412 is placed on the concrete base 100, and the length reaches the edge of the concrete base 100 layer. The short limb 413 is flush with the plane of the wooden keel 200 and forms hooks on both sides of the wooden keel 200.

[0069] (3) Lay out lines on the back of the orthogonal laminated wood panel 300, and use short screws to fix the channel stainless steel 420 to the back of the panel 300. Place a fixed rubber vibration damping pad 440 inside the channel stainless steel 420.

[0070] In step (3), the channel stainless steel 420 is fixed to the back of the panel 300 with short screws. The length of the screw is less than the thickness of the wooden board, that is, the screw does not penetrate the wooden board. The rubber damping pad 440 is fixed to the top surface of the inner cavity of the channel stainless steel 420 after applying structural adhesive.

[0071] Here, the fact that wood screws do not penetrate the wood planks, the deformation of the wood planks is effectively released, and the effective waterproofing prevents long-term dampness can all effectively improve the durability of small-diameter cross-laminated plywood boardwalks, avoid material performance deterioration and component damage, reduce maintenance costs, and extend the service life of the boardwalks.

[0072] (4) Slide the orthogonal laminated wood panel 300 with grooved stainless steel keel on the back into the designated position along the keel 200 along the stainless steel curved corner bracket 410 groove and place it on the wood keel 200.

[0073] (5) At the side seam of the board edge, one side flange of the Z-shaped buckle connector 510 is inserted into the side groove of the panel 300, and the bottom edge of the Z-shaped buckle connector 510 is fixed to the wooden keel 200 with screws.

[0074] In step (5), the installation of the Z-shaped buckle connector 510 involves first inserting one side flange of the buckle connector 510 into the side groove of the previous laid wooden board 300, and then fixing the bottom edge of the Z-shape to the wooden joist with screws.

[0075] (6) Install the next orthogonal laminated wood panel 300 according to steps (3)~(4). The front edge of the panel 300 is inserted into the flange of the other side of the Z-shaped buckle connector 510.

[0076] In step (6), when the next wooden board 300 is slidably laid, the side groove of the subsequent wooden board is embedded in the buckle connector 510, and the other side flange is the mark of sliding into place.

[0077] (7) The T-shaped waterproof cover 520 is inserted into the inner limit of the zig-shaped buckle connector 510 between the board seams. After the waterproof cover 520 and the edge of the wooden board are coated with sealant 540, they are pressed down to fix them.

[0078] In step (7), the vertical plate and the lower horizontal plate 521 of the T-shaped waterproof cover 520 are inserted into the cavity formed by the zig-shaped buckle connector 510 along the plate seam direction. The width of the lower horizontal plate 521 is greater than the width of the inward opening of the zig-shaped buckle connector 510, thereby realizing the limiting function of the T-shaped waterproof cover 520.

[0079] (8) Repeat steps (3) to (7) in sequence until the wooden boardwalk is completed.

[0080] In summary, the concealed flexible connection system and construction method of the orthogonal laminated timber walkway are suitable for connecting walkways with large-area wooden planks as panels through a concealed flexible connection system. It features flatness and aesthetics, concealed connection, deformation release, water isolation and drainage, and stability and durability, effectively improving the aesthetics, comfort, safety and durability of outdoor landscape wooden walkways.

[0081] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A concealed flexible connection system for orthogonal laminated timber walkways, characterized in that, It includes a first connection structure and a second connection structure. The first connection structure is disposed between the panel, the wooden keel and the concrete base. The panel can be horizontally slid along the wooden keel to be snapped together through the first connection structure, forming a concealed flexible connection structure of base-keel-panel. The first connecting structure includes hook brackets and flat channel steel. The hook brackets are arranged in pairs at equal intervals along the longitudinal direction of the wooden joists. The hook brackets are U-shaped structures with an unequal cross-section, including a transverse surface, a first longitudinal surface, and a second longitudinal surface. The height of the transverse surface of the hook bracket is the same as the height of the wooden joists, and the transverse surface of the hook bracket is set close to the side wall of the wooden joists. The first longitudinal surface is placed on a concrete base, and the edge of the first longitudinal surface is flush with the edge of the concrete base. The second longitudinal surface is flush with the top surface of the wooden joists and is connected to the flat channel steel. Several fasteners are used on the first longitudinal surface of each hook bracket to fix the hook bracket to the concrete base, which allows the hook brackets to be set on both sides of the wooden joists. The wooden keel is clamped to form a limit; at the same time, the second longitudinal surface of the hook bracket can form a buckle that cooperates with the flat channel steel; the cross-section of the flat channel steel is a non-standard channel shape, which is fixed to the back of the panel by fasteners. The length of the flat channel steel is consistent with the width of the single panel, which can fully connect the panel and the wooden keel through the flat channel steel. The direction and spacing of the flat channel steel are consistent with the wooden keel. During assembly, the flat channel steel drives the panel to slide horizontally along the direction of the wooden keel, so that the flat channel steel and the second longitudinal surface of the hook bracket interlock and lock together, realizing a concealed flexible connection between the base-keel-panel, and eliminating the need for screws on the road surface. It can also effectively redundancy the expansion and deformation of the wooden board under high temperature and high humidity, and release horizontal stress. The second connecting structure is disposed between adjacent panels and fixed to the wooden keel. The second connecting structure covers the joint between adjacent panels. The bottom two sides of the second connecting structure are engaged with the adjacent panels to form a waterproof flexible connecting structure between the joints.

2. The concealed flexible connection system for an orthogonal laminated timber walkway according to claim 1, characterized in that, A vibration damping pad is provided between the flat channel steel and the wooden keel.

3. The concealed flexible connection system for an orthogonal laminated timber walkway according to claim 1, characterized in that, The second connection structure includes a snap-fit ​​connector and a waterproof cover plate. The snap-fit ​​connector is placed between the board seams and set on the wooden keel. Both sides are snap-fitted to the adjacent panels. One end of the waterproof cover plate covers the top of the adjacent panel, and the other end is placed in the snap-fit ​​connector.

4. The concealed flexible connection system for an orthogonal laminated timber walkway according to claim 3, characterized in that, The cross-section of the snap-fit ​​connector is a Z-shaped opening with a narrowing, and it includes a first horizontal surface, a second horizontal surface and a third horizontal surface. The first horizontal surface is set on the wooden keel, and the second horizontal surface and the third horizontal surface are respectively snap-fitted to the adjacent panel.

5. The concealed flexible connection system for an orthogonal laminated timber walkway according to claim 4, characterized in that, The waterproof cover plate has a T-shaped cross-section, with the upper panel covering the top of the adjacent panel, and the other end is provided with a horizontal clamping plate and placed in the cavity formed by the Z-shaped buckle connector.

6. The concealed flexible connection system for an orthogonal laminated timber walkway according to claim 5, characterized in that, The joint between the upper panel of the waterproof cover and the adjacent panel is coated with sealant.

7. A construction method for a concealed flexible connection system of orthogonal plywood glued laminated timber walkways, characterized in that, The construction method includes the following steps: (1) Lay out the lines on the concrete floor and pour the concrete cushion layer; (2) The wooden keel is placed in the center of the concrete squatting pad layer, and the curved corner brackets are set on both sides for limiting. The stainless steel curved corner brackets are fixed to the concrete squatting pad layer. (3) Fix the flat channel steel to the back of the panel, and place a fixed rubber vibration damping pad inside the flat channel steel; (4) Slide the panel with the flat channel steel on the back into the designated position along the keel direction and the curved corner bracket groove, and place it on the wooden keel; (5) At the side seam of the board, one side flange of the zig-shaped buckle connector is inserted into the side groove of the panel, and the bottom edge of the zig-shaped buckle connector is fixed to the wooden keel. (6) Install the next panel according to steps (3) to (4), and insert the front edge of the panel into the flange of the other side of the Z-shaped buckle connector; (7) The T-shaped waterproof cover is inserted into the zig-shaped buckle connector between the board seams and then the waterproof cover and the edge of the wooden board are sealed with sealant and pressed down to fix them. (8) Repeat steps (3) to (7) in sequence until the wooden boardwalk is completed.

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