High-strength prefabricated road deck system

Abstract

The present invention provides a high-strength prefabricated decking system that enables the implementation of the decking system solely through assembly without on-site fabrication, thereby reducing loss and enabling cost reduction and recycling; allows the main beam supports to proceed without difficulty by bolting even when spacing occurs due to the verticality of the piles; enhances stability by increasing the self-supporting ability of the outermost main beam to prevent the decking plate from tipping over; and facilitates the management and maintenance of the decking plate. A high-strength prefabricated decking system according to a suitable embodiment of the present invention comprises: piles driven into the excavated ground in at least two rows with a predetermined spacing between each row; piece brackets fixedly installed by bolting or welding to one or both sides of the upper end of the piles; main beam supports made of H-shaped steel and mounted on the piece brackets and arranged along the arrangement of the piles; and main beams that are placed on the upper surface of the main beam supports, fixed thereto, and interconnected through bracing. The invention is characterized by including a U-bolt for fixing the above-mentioned formwork beam support to a piece bracket; and a deck plate installed with both ends supported by adjacent formwork beams, wherein the U-bolt wraps around the cross-section of the formwork beam support and is inserted into two rows of fastening holes formed in the piece bracket with a length longer than the width of the formwork beam support in a direction perpendicular to the pile, thereby increasing the recycling of the piece bracket and facilitating the installation of the formwork beam support even when a verticality error of the pile occurs, and then the ends of the U-bolts are fastened with nuts to fix the formwork beam support to the piece bracket.

Description

Technology Field

[0001] The present invention relates to a high-strength prefabricated decking system constructed to serve as a floor surface for the passage of vehicles or pedestrians during open-cut excavation work. In particular, the decking system can be implemented by assembly alone without fabrication on-site, thereby reducing loss and enabling cost reduction and recycling. Furthermore, even when a gap occurs due to the verticality of the piles, the main beam supports can be fastened without difficulty by bolting, and stability is enhanced by increasing the self-supporting ability of the outermost main beam to prevent the decking plate from tipping over, and the decking plate is easy to manage and maintain. Background Technology

[0002] The decking system enables the safe passage of vehicles and pedestrians by stably installing decking plates on top during open-cut excavation work. In this decking system, piles are driven into the ground, and as excavation proceeds, brackets are installed at necessary locations on the piles using bolt connections. Then, formwork supports made of H-shaped steel are mounted on the brackets and fixed in place using bolt connections. Next, the formwork is placed on the formwork supports and fixed in place using bolt connections, after which the decking plates are positioned on top of the formwork to complete the construction.

[0003] In conventional decking systems, formwork supports are fixed to brackets using bolt connections. However, in this case, the bolt holes drilled between the bracket and the formwork support may not align depending on the verticality of the piles, making bolt fastening difficult and hindering on-site assembly. Therefore, a solution is needed that eliminates these assembly difficulties associated with bolt fastening and allows for construction through assembly alone without on-site fabrication, thereby increasing recyclability and reducing costs. Additionally, examining conventional decking plates reveals that foreign substances, such as soil, can enter the interior through holes for lifting hooks, making removal difficult; thus, a structural alternative is required to address this issue.

[0004] The technology forming the background of the present invention is Korean Registered Utility Model No. 20-0485178 (Patent Document 1), which proposes a 'deck plate coupling system'. This system is designed to significantly reduce noise by reducing the gap space and simultaneously ensuring sufficient cushioning, even if the heights of opposing formwork beams supporting the deck plate do not perfectly match, and to prevent the connection between the deck plate and the formwork beam from being disassembled due to prolonged impact. However, the above background technology presents a problem in that if the verticality of the piles driven into the ground is not accurate, the positions of the fastening holes do not match, making it difficult to bolt the formwork beam supports.

[0005] Another background technology of the present invention is Korean Published Patent No. 10-2023-0126376 (Patent Document 2), which proposes a 'deck plate'. This is designed to increase structural rigidity and prevent twisting by utilizing H-shaped steel, C-shaped steel, and support posts, while preventing noise from being transmitted to the outside through a structure that covers the top and perimeter of the deck plate. However, the above background technology has a disadvantage in that the hole for the lifting hook is always open, so it cannot prevent foreign substances such as soil from entering the interior of the deck plate, and removing foreign substances is not easy. Prior art literature

[0006] Korean Registered Utility Model No. 20-0485178, Korean Published Patent No. 10-2023-0126376 The problem to be solved

[0007] The purpose of the present invention is to provide a high-strength prefabricated decking system that enables the implementation of the decking system by assembly alone without on-site fabrication, thereby reducing loss and enabling cost reduction and recycling; allows the main beam support to proceed without difficulty by bolt fastening even when a gap occurs due to the verticality of the piles; enhances stability by increasing the self-supporting ability of the outermost main beam to prevent the decking plate from tipping over; and facilitates the management and maintenance of the decking plate. means of solving the problem

[0008] A high-strength prefabricated decking system according to a suitable embodiment of the present invention comprises: piles driven into the excavated ground in at least two rows with a predetermined spacing between each row; a piece bracket fixedly installed by bolting or welding to one or both sides of the upper end of the piles; a formwork beam support made of H-shaped steel and mounted on the piece bracket and arranged along the arrangement of the piles; a formwork beam positioned on the upper surface of the formwork beam support, fixed thereto, and then interconnected through bracing; and a U-bolt for fixing the formwork beam support to the piece bracket. The structure includes a deck plate installed with both ends supported by adjacent formwork beams; and is characterized in that, in order to increase the recycling of the piece bracket and at the same time facilitate the installation of the formwork beam support even when a verticality error of the pile occurs, the U-bolt wraps around the cross-section of the formwork beam support and is inserted into each of two rows of fastening holes formed in the piece bracket with a length longer than the width of the formwork beam support in the direction perpendicular to the pile, and then the end of the U-bolt is fastened with a nut so that the formwork beam support is fixed to the piece bracket.

[0009] In addition, the above piece bracket is characterized by including a connecting plate joined to a pile by bolt connection, an upper flange joined to the top of the connecting plate and having two rows of fastening holes formed with a length longer than the width between the two open ends of a U-bolt, a web joined to the lower surface of the upper flange and the center of the connecting plate, and an end reinforcing plate joined to the upper flange and the web facing the connecting plate.

[0010] In addition, one end of a non-overturning member is hinged to the outermost molding beam installed in the decking installation area, and the other end of the non-overturning member is hinged to an anti-slip piece bolted to the upper surface of the molding beam support, thereby increasing the self-standing stability of the outermost decking plate and preventing the decking plate from overturning.

[0011] In addition, the formwork beam installed at the outermost position in the installation area of ​​the decking plate is supported by a formwork beam support plate that can be moved to the web side of the formwork beam, one end of a member for preventing tipping is connected to the formwork beam support plate side by a hinge, and the other end of the member for preventing tipping is connected to a non-slip piece bolted to the upper surface of the formwork beam support by a hinge, thereby increasing the self-standing stability of the outermost decking plate and preventing tipping of the decking plate.

[0012] In addition, the internal fastening area of ​​the above U-bolt is characterized by further including a pair of stiffener jacks symmetrically installed with a central axis to reinforce the cross-section of the mold beam support.

[0013] In addition, the above-described deck plate is characterized by having a plurality of lifting hook holes formed in the upper plate of the deck plate, wherein a lifting hole cap is additionally installed in each lifting hook hole portion, which is hinged to close when the lifting hook is not used and to open when the lifting hook is inserted, and receives a closing force by spring force.

[0014] In addition, the cleaning opening formed on the side plate of the deck plate is characterized by being formed in connection with the bottom plate of the deck plate, which provides an inner bottom surface to facilitate cleaning.

[0015] In addition, the above-mentioned mold beam is characterized by having an anti-slip member further installed on its upper surface to prevent the deck plate from slipping.

[0016] In addition, the stiffener installed on the mold beam side is characterized by having an elongated slot formed therein to facilitate bolt connection of the bracing to the upper or lower side. Effects of the invention

[0017] According to the high-strength prefabricated decking system of the present invention, even if there is an error in the verticality of the piles, the error is accommodated, and the main beam support can be easily fixed and installed without difficulty using U-bolts on the piece brackets. Accordingly, the high-strength prefabricated decking system enables each component to be implemented by assembly only at the site, thereby reducing loss and enabling cost reduction and recycling.

[0018] In addition, by assembling anti-overturning members and anti-slip pieces without on-site fabrication, the self-supporting ability of the outermost main beam is improved, thereby preventing the decking plate from overturning.

[0019] In addition, the lifting hole cap installed on the deck plate prevents the internal intrusion of foreign substances, such as soil, into the lifting hole, thereby providing the advantage of easy management and maintenance of the deck plate. Brief explanation of the drawing

[0020] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description thereof; therefore, the present invention should not be interpreted as being limited only to the matters described in the attached drawings. FIG. 1a is a construction state diagram of a high-strength prefabricated decking system according to the present invention. FIG. 1b is a cross-sectional view of one side of FIG. 1a. FIG. 2 is an installation state diagram of a mold beam support in a high-strength prefabricated decking system according to the present invention. FIGS. 3(a) and 3(b) are a state diagram in which a mold beam support according to the present invention is mounted on a piece bracket and an installation state diagram in which a mold beam support is fixed to a piece bracket with a U-bolt. FIG. 4a is a perspective view showing a piece bracket according to the present invention installed on a pile. FIG. 4b is a perspective view of a mold support according to the present invention fixed to a piece bracket with a U-bolt. FIGS. 5A and 5B are diagrams showing the state in which a stiffener jack according to the present invention is installed on a mold beam support. FIG. 6a is a perspective view showing an anti-overturning member and an anti-slip piece installed to increase the self-supporting ability of a mold beam supporting the outermost deck plate according to the present invention. Fig. 6b is a front view of Fig. 6a. FIG. 6c is a perspective view showing a different connection state of the anti-conduction member illustrated in FIG. 6a and FIG. 6b. FIG. 6d is a side view of FIG. 6c. FIG. 7 is a diagram showing the configuration of a deck plate applied to an embodiment of the present invention. FIG. 8 is an enlarged view of the bolt connection portion of the mold-side stiffener and bracing according to the present invention. Specific details for implementing the invention

[0021] The present invention will be described in detail below with reference to embodiments shown in the attached drawings, but the presented embodiments are exemplary for a clear understanding of the present invention and the present invention is not limited thereto.

[0022] As shown in FIGS. 1a to 2, the high-strength prefabricated decking system of the present invention comprises piles (12) driven into the excavated ground in at least two rows with a predetermined spacing between each row, piece brackets (14) fixedly installed by bolting or welding to one or both sides of the upper part of the piles (12), a main beam support (16) made of H-shaped steel and mounted on the piece brackets (14) and arranged along the arrangement of the piles (12), a main beam (20) that is placed on the upper surface of the main beam support (16) and fixed, and then interconnected through bracing (18), a U-bolt (22) for fixing the main beam support (16) to the piece brackets (14), and a decking plate (30) installed with both ends supported by adjacent main beams (20 and 20).

[0023] At this time, as shown in FIGS. 3 and 4, in order to facilitate the installation of the molding beam support (16) even when the piece bracket (14) is recycled and a verticality error of the pile (12) occurs, a U-bolt (22) wraps around the cross-section of the molding beam support (16) and is inserted into each of the two rows of fastening holes (142a, 142a) formed in the piece bracket (14) with a length (B) longer than the width (b) of the molding beam support (16) in a direction perpendicular to the pile (12), and then the end of the U-bolt (22) is fastened with a nut (23) so that the molding beam support (16) is fixed to the piece bracket (14) and installed.

[0024] The piece bracket (14) includes a connecting plate (141) joined to the pile (12) by bolt connection, an upper flange (142) joined to the top of the connecting plate (141) and having a length (B) longer than the width (S) between the two ends of the U-bolt (22) and forming two rows of fastening holes (142a, 142a), a web (143) joined to the lower surface of the upper flange (142) and the center of the connecting plate (141), and an end reinforcing plate (144) joined to the upper flange (142) and the web (142) facing the connecting plate (141).

[0025] Here, the piece bracket (14) may further be configured with a lower flange (145) joined to the lower end of the abdomen (142), the joining plate (141), and the end reinforcing plate (144).

[0026] Therefore, even if the verticality of the pile (12) installed in the ground is not correct, the length (B) of the two rows of fastening holes (142a, 142a) is formed to be longer than the width (b) of the main beam support (16), so that the main beam support (16) is positioned to pass through the length (B) section of the fastening holes (142a, 142a). As a result, the U-bolt (22) wraps around the cross-section of the main beam support (16), and its end is inserted at any position of the fastening holes (142a, 142a) and can be fastened with a nut (23).

[0027] In this way, in the deck plate system of the present invention, even if a separation distance (a distance that moves a certain amount from the set assembly position of the main beam support) occurs due to the verticality of the pile (12), the main beam support (16) can be installed, thereby improving assembly at the site.

[0028] In addition, the piece bracket (14) is not only detachably installed on the pile (12) through bolt connection, but also allows the assembly and installation of the mold beam support (16) with a gap, thereby having the advantage of being recyclable without loss.

[0029] Meanwhile, as shown in FIGS. 6a and 6b, it is preferable that one end of a non-overturning member (21) is connected to a main beam (20) installed at the outermost side of the deck plate (30) by a hinge (h1), and the other end of the non-overturning member (21) is connected to a non-slip piece (17) bolted to the upper surface of the main beam support (16) by a hinge (h2) to increase the self-standing stability of the outermost deck plate (30) and prevent the deck plate (30) from overturning. Here, the hinges (h1) and (h2) are used to refer to bolts connected to nuts, but in the present invention, a shaft-shaped pin may be used instead of a bolt. The non-overturning member (21) can be, for example, an L-shaped steel section, a C-shaped steel section, an H-shaped steel section, etc. Here, a slip prevention member (25) may be further installed on the upper surface of the main beam (20) to prevent the deck plate (30) from slipping. The slip prevention member (25) may be installed by fixing it to the upper flange of the main beam (20) through bolt connection. In this embodiment, an L-shaped steel was used for the slip prevention member (25), but other steels such as C-shaped steel and H-shaped steel may also be used.

[0030] Meanwhile, considering the case where the anti-overturning member (21) cannot be connected to the stiffener (201) on the side of the mold beam (20), as shown in FIGS. 6c and 6d, the mold beam support plate (27) is supported so as to be movable on the web side of the mold beam (20) on the outermost mold beam (20) in the installation area of ​​the deck plate (30), and one end of the anti-overturning member (21) is connected to the side of the mold beam support plate (27) by a hinge (h1), and the other end of the anti-overturning member (21) is connected by a hinge (h2) to an anti-slip piece (17) bolted to the upper surface of the mold beam support (16), thereby increasing the self-standing stability of the outermost deck plate (30) and preventing the deck plate (30) from overturning.

[0031] In this way, the molding beam (20) installed at the outermost side of the installation area of ​​the decking plate (30) is connected to the anti-slip piece (17) through the anti-overturning member (21) to provide structural stability, and the construction efficiency is improved because the anti-overturning member (21) and the anti-slip piece (17) are assembled on-site by bolt fastening.

[0032] Meanwhile, as shown in FIG. 8, a circular hole for bolt connection of the bracing (18) may be formed in the upper and lower parts of the stiffener (201) installed on the side of the mold beam (20), but preferably, a slotted hole (201a) is formed in the upper or lower part, taking into account the distance difference between the bolt connection holes formed at both ends of the bracing (18). In this case, the slotted hole (201a) accommodates the distance difference between the bolt connection holes drilled at both ends of the bracing (18), making assembly easier.

[0033] Additionally, as shown in FIG. 5a, when installing the mold beam support (16), a pair of stiffener jacks (24) may be installed symmetrically with respect to the web-side central axis (Y) in the internal fastening area of ​​the U-bolt (22) to reinforce the cross-section of the mold beam support (16). In this case, the fastening force of the U-bolt (22) can be increased to further increase the fixing force of the mold beam support (16), thereby improving structural stability.

[0034] On the other hand, as shown in FIG. 7, a plurality of lifting hook holes (302a) are formed in the upper plate (302) of the deck plate (30), and it is preferable to further install a lifting hole cap (32) that is connected to a hinge pin (31) and receives a closing force by a spring (33) so that it closes when the lifting hook (100) is not used and opens when the lifting hook (100) is inserted in each lifting hook hole (302a).

[0035] Therefore, when the lifting hook (100) is not used, the lifting hole cap (32) is closed by the force of the spring (33). By closing the lifting hole cap (32) in this way, foreign matter is prevented from entering the interior of the deck plate (30), so that separate cleaning is not required, and accidents caused by the lifting of the lifting hook (100) can be prevented.

[0036] Additionally, it is preferable that the cleaning opening (304) formed on the side plate of the deck plate (30) is formed in connection with the bottom plate (306) of the deck plate, which provides an inner bottom surface for easy cleaning. In this case, the cleaning opening (304) is eliminated, making cleaning very easy.

[0037] As such, the decking system of the present invention is constructed by fastening the members with bolts, thereby eliminating on-site fabrication and preventing loss or damage. Furthermore, it offers excellent assembly capabilities and is recyclable, which can reduce construction costs.

[0038] Although the present invention has been described in detail with reference to the presented embodiments, those skilled in the art may make various modifications and variations without departing from the technical spirit of the present invention by referring to the presented embodiments. The present invention is not limited by such modifications and variations, but is limited only by the claims appended below. Explanation of the symbols

[0039] 12: Stake 14: Screw bracket 141: Bonding plate 142: Upper flange 142a: Fastening slot 144: End reinforcement plate 16: Mold beam support 17: Anti-slip screw 20: Ju Hyeong-bo 21: Anti-tipping component 22: U-bolt 24: Stiffener Jack 25: Anti-slip member 30: Tempered steel plate 32: Lifting hole cap

Claims

Claim 1 Piles (12) driven into the excavated ground in at least two rows with a predetermined spacing between each row; piece brackets (14) fixedly installed by bolting or welding to one or both sides of the upper end of the piles (12); a main beam support (16) made of H-shaped steel and mounted on the piece brackets (14) and arranged along the arrangement of the piles (12); a main beam (20) placed on the upper surface of the main beam support (16), fixed thereon, and then interconnected through bracing (18); and a U-bolt (22) for fixing the main beam support (16) to the piece brackets (14); A deck plate (30) is installed with both ends supported by adjacent main beams (20 and 20); wherein, in order to increase the recycling of the piece bracket (14) and at the same time facilitate the installation of the main beam support (16) even when a verticality error of the pile (12) occurs, the U-bolt (22) wraps around the cross-section of the main beam support (16) and is inserted into each of two rows of fastening holes (142a, 142a) formed in the piece bracket (14) with a length (B) longer than the width (b) of the main beam support (16) in a direction perpendicular to the pile (12), and then the end of the U-bolt (22) is fastened with a nut (23) so that the main beam support (16) is fixed to the piece bracket (14); and on the main beam (20) installed at the outermost side of the installation area of ​​the deck plate (30), an anti-overturning member (21) A high-strength prefabricated decking system characterized by having one end connected by a hinge (h1), and the other end of the anti-overturning member (21) connected by a hinge (h2) to a slip-prevention piece (17) bolted to the upper surface of the molding beam support (16), or having the molding beam support plate (27) supported so as to be movable on the web side of the molding beam (20), and having one end of the anti-overturning member (21) connected to the molding beam support plate (27) side by a hinge (h1), and the other end of the anti-overturning member (21) connected by a hinge (h2) to a slip-prevention piece (17) bolted to the upper surface of the molding beam support (16), thereby increasing the self-standing stability of the outermost decking plate (30) and preventing the decking plate (30) from tipping over. Claim 2 In claim 1, the piece bracket (14) comprises a connecting plate (141) joined to a pile (12) by bolt connection, an upper flange (142) joined to the top of the connecting plate (141) and having two rows of fastening holes (142a, 142a) formed with a length (B) longer than the width (S) between the two ends of the U-bolt (22), a web (143) joined to the lower surface of the upper flange (142) and the center of the connecting plate (141), and an end reinforcing plate (144) joined to the upper flange (142) and the web (142) facing the connecting plate (141). Claim 3 delete Claim 4 delete Claim 5 A high-strength prefabricated decking system characterized in that, in the first paragraph, a pair of stiffener jacks (24) are symmetrically installed with a central axis (Y) in the internal fastening area of ​​the U-bolt (22) to reinforce the cross-section of the molding beam support (16). Claim 6 A high-strength prefabricated decking system according to claim 1, wherein a plurality of lifting hook holes (302a) are formed in the upper plate (302) of the decking plate (30), and a lifting hole cap (32) is further installed in each lifting hook hole (302a) so as to be closed when the lifting hook (100) is not used and open when the lifting hook (100) is inserted, and receive a closing force by spring force. Claim 7 A high-strength prefabricated decking system characterized in that, in the first paragraph, the cleaning opening (304) formed on the side plate of the decking plate (30) is formed in connection with the bottom plate (306) of the decking plate, which provides an inner bottom surface for easy cleaning. Claim 8 A high-strength prefabricated decking system characterized in that, in the first paragraph, a slip-prevention member (25) is further installed on the upper surface of the mold beam (20) to prevent slippage of the decking plate (30). Claim 9 A high-strength prefabricated decking system according to claim 1, characterized in that a slot elongated hole (201a) is formed in the stiffener (201) installed on the side of the mold beam (20) to facilitate bolt connection of the bracing (18) to the upper or lower side.

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