Method for installating aerial scaffolding

Abstract

The present invention relates to a method for constructing aerial scaffolding for installing aerial scaffolding under a bridge or structure, characterized by comprising the steps of: drilling holes in a bridge or building structure to install anchors; assembling aerial scaffolding on the ground; installing wires on the assembled aerial scaffolding; sequentially lifting the aerial scaffolding with wires installed from the ground using high-altitude equipment and connecting it to anchors in the air; binding the aerial scaffolding connected to anchors together; installing platforms on the interconnected aerial scaffolding; and installing finishing materials on the aerial scaffolding. Accordingly, the present invention provides the effect of reducing the risk of aerial work by minimizing working time in the air while ensuring safety by assembling the aerial scaffolding on the ground in advance and installing it under a bridge or structure by fixing it to anchors and wires.

Description

Technology Field

[0001] The present invention relates to a method for constructing aerial scaffolding, and more specifically, to a method for constructing aerial scaffolding by installing aerial scaffolding under a bridge, overpass, structure, etc. Background Technology

[0002] A bridge is a structure constructed to cross streams, valleys, rivers, lakes, coastlines, etc., or to pass through without obstruction by objects such as buildings or other roads. Because a large volume of vehicles and means of transport repeatedly cross bridges, there is a high probability of major accidents occurring if they are not thoroughly maintained.

[0003] Recent bridges primarily adopt a method of constructing a main framework using steel structural materials, such as H-beams, and placing plates such as slabs on top. Steel structural materials are widely used in most building structures as well as bridges due to their strength and shock absorption capabilities, but they also have the weakness of being susceptible to corrosion. Corrosion of steel is caused by oxidation by oxygen in the air, and oxidation proceeds when there is about 40% humidity in the air.

[0004] A representative method for preventing corrosion of steel is applying paint. Paint inhibits corrosion by forming a film on the surface of the steel, thereby preventing the penetration of moisture and oxygen.

[0005] However, coating films such as this paint deteriorate over time and may peel or flak. Even if there are fine pores in the film, oxygen and moisture can penetrate and cause corrosion.

[0006] Furthermore, the steel materials used in bridges are connected to one another using fastening means such as bolts and nuts, and these connecting materials can also corrode or break. Moreover, corrosion can occur at the welded joints of the steel materials. Therefore, thorough management and maintenance are essential for bridges, and repairs must be performed very frequently.

[0007] In addition, numerous subways, high-speed railways, bridges for vehicles, and elevated roads are being constructed. These structures require periodic maintenance, which can extend their lifespan and prevent unforeseen accidents.

[0008] However, maintenance work on such elevated structures is highly difficult. First, it requires the use of equipment such as aerial ladder trucks or the installation of temporary structures like scaffolding in the air. Using such equipment causes traffic congestion in urban areas, and there was a problem in that work could not be performed at high altitudes beyond the reach of the ladder trucks.

[0009] For the maintenance and repair of bridges or overpasses, a work platform known as scaffolding is required, and since it is located at a considerable height from the ground, it is very difficult to install the work platform.

[0010] In particular, aerial scaffolding installed on bridges or overpasses has unique characteristics different from other structures because it cannot be supported from the ground and must be fixed to the bridge itself. As a result, until now, large-scale equipment that incurs high costs had to be mobilized.

[0011] For example, commonly used large equipment includes barges, cranes, sky lifts, and articulated trucks; using these not only incurs extremely high costs but also presents the problem of having to control the passage of other means of transportation for extended periods while installation work is in progress.

[0012] Ultimately, until now, there has been a problem in that the total cost, combining the direct costs incurred for the installation of aerial scaffolding with social costs associated with traffic control, was enormous. To overcome these equipment limitations, aerial scaffolding installed to be suspended from the base of elevated facilities has been proposed.

[0013] Aerial scaffolding is a method of sequentially installing frameworks and platforms starting from one end of a bridge. Since aerial scaffolding is installed to be suspended from a structure, it can be applied to any bridge or overpass, and once installed, it allows workers to safely carry out maintenance tasks.

[0014] However, one of the problems with aerial scaffolding is that, because it is installed by being suspended from the building, there is no suitable area to fix the scaffolding to the center bottom surface, unlike slab bridges or rigid frame bridges.

[0015] In such cases, the usual method involves installing multiple anchor bolts on the bottom surface of the structure and connecting wires to support the frame, including the horizontal bars. However, using these conventional anchor bolts not only significantly slows down the work speed but also cannot be said to provide relatively stable fixation.

[0016] Moreover, since anchor bolts leave marks after removal, they not only damage the facility itself but also require additional work to repair it.

[0017] However, since the connection between each connecting rod and the supporter is made by a clamp in these conventional fixing devices for aerial scaffolding, there was a problem in that not only did the work time for erecting and dismantling the aerial scaffolding take a very long time, but a large number of workers had to be deployed, resulting in enormous costs during the erection and dismantling of the aerial scaffolding.

[0018] In addition, as a number of connecting rods are used, the space available for workers to move becomes narrow, and the multiple connecting rods become obstacles to the workers' movement, so bridge maintenance work cannot be carried out quickly, and as a result, there was a problem of reduced work efficiency. Prior art literature

[0019] Republic of Korea Published Patent No. 10-2021-0045111 (April 26, 2021) Republic of Korea Registered Patent No. 10-1640876 (July 19, 2016) Republic of Korea Registered Patent No. 10-2513266 (March 23, 2023) The problem to be solved

[0020] The present invention has been devised to resolve the aforementioned conventional problems, and aims to provide a construction method for aerial scaffolding that can reduce the risk of aerial work by minimizing working time in the air while ensuring safety by assembling the scaffolding on the ground in advance and installing it by assembling the scaffolding on the ground, lifting it to the lower part of a bridge or structure, and fixing it together with anchors and wires.

[0021] In addition, another objective is to provide a method for constructing an aerial scaffolding that can improve the fixed support strength of the supports of the aerial scaffolding and simultaneously improve the bonding performance between the supports by installing a plurality of second supports spaced apart and connected in the longitudinal direction on the upper part of the first support in the transverse direction of the aerial scaffolding.

[0022] In addition, another objective is to provide a construction method for an aerial scaffold that can secure support strength when installing a hollow aerial scaffold and simultaneously improve the bonding strength between the support and the wire by installing a wire to be connected to the first transverse support of the aerial scaffold.

[0023] In addition, another objective is to provide a construction method for aerial scaffolding that can improve the safety performance of the aerial scaffolding by facilitating the installation of scaffolding platforms and evenly distributing the load when working on the platforms, by additionally installing connecting materials between the aerial scaffolding platforms to bind them together and arranging the supports of the aerial scaffolding on the same extension line.

[0024] In addition, another objective is to provide a construction method for aerial scaffolding that facilitates the connection between the anchor and the wire by installing an eye-type nut on one end of the anchor and a hook on one end of the aerial scaffolding wire to connect them, thereby simplifying the installation work of the aerial scaffolding, shortening the work time, and enabling even unskilled workers to easily perform the construction. means of solving the problem

[0025] The present invention, for achieving the above-mentioned purpose, is a method for constructing aerial scaffolding installed on the lower part of a bridge or structure, comprising the steps of: drilling holes in the bridge or building structure to install anchors; assembling aerial scaffolding on the ground; installing wires on the assembled aerial scaffolding; sequentially lifting the aerial scaffolding with the wires installed from the ground by means of high-altitude equipment and connecting it to anchors in the air; connecting the aerial scaffolding connected to the anchors to each other; installing platforms on the interconnected aerial scaffolding; and installing finishing materials on the aerial scaffolding.

[0026] The step of assembling the aerial scaffolding of the present invention is characterized by installing a plurality of second supports spaced apart and connected in the longitudinal direction on the upper part of a first support in the transverse direction of the aerial scaffolding.

[0027] The step of installing the wire of the present invention is characterized by installing the wire to be connected to the first transverse support of the aerial scaffolding.

[0028] The step of connecting the aerial scaffolding of the present invention is characterized by additionally installing a connecting member between the aerial scaffoldings to connect them, so that the supports of the aerial scaffoldings are arranged on the same extension line.

[0029] The step of combining the aerial scaffolding and the anchor of the present invention is characterized by the fact that an eye-shaped nut is installed at one end of the anchor and a hook is installed at one end of the wire of the aerial scaffolding so that they are combined with each other. Effects of the invention

[0030] As described above, the present invention provides the effect of reducing the risk of aerial work by minimizing work time in the air while ensuring safety by assembling the aerial scaffolding on the ground in advance and installing it by assembling the scaffolding on the ground, lifting it to the lower part of a bridge or structure, and fixing it together with anchors and wires.

[0031] In addition, by installing a plurality of second supports spaced apart and connected in the longitudinal direction on the upper part of the first support in the transverse direction of the aerial scaffolding, the effect of improving the fixed support strength by the supports of the aerial scaffolding and simultaneously improving the bonding performance between the supports is provided.

[0032] In addition, by installing a wire to be connected to the first transverse support of the aerial scaffolding, it is possible to secure support strength when installing the aerial scaffolding hollowly, while simultaneously improving the bonding strength between the support and the wire.

[0033] In addition, by installing additional connecting materials between the scaffolding members to bind them together, the supports of the scaffolding are positioned on the same extension line, thereby facilitating the installation of the scaffolding platforms and simultaneously distributing the load evenly when working on the platforms, which provides the effect of improving the safety performance of the scaffolding.

[0034] In addition, by installing an eye-type nut on one end of the anchor and a hook on one end of the scaffolding wire to connect them, the connection between the anchor and the wire is facilitated, while simultaneously simplifying the installation of the scaffolding, thereby reducing work time and providing the effect of enabling even unskilled workers to easily perform the construction. Brief explanation of the drawing

[0035] FIG. 1 is a flowchart illustrating a method for constructing an aerial scaffolding according to one embodiment of the present invention. FIG. 2 is a diagram showing the assembled state of an aerial scaffolding in a construction method of an aerial scaffolding according to one embodiment of the present invention. FIG. 3 is a side view showing the assembled state of an aerial scaffolding according to an embodiment of the present invention. FIGS. 4 and 5 are state diagrams showing the binding state of an aerial scaffolding in a construction method of an aerial scaffolding according to an embodiment of the present invention. FIG. 6 is a state diagram showing the completed state of the construction method of an aerial scaffolding according to one embodiment of the present invention. FIG. 7 is a plan view showing the completed state of a construction method for aerial scaffolding according to one embodiment of the present invention. FIG. 8 is a diagram showing the wire installation state of a construction method for aerial scaffolding according to one embodiment of the present invention. FIG. 9 is a diagram showing the installation state of a scaffolding platform in a construction method of an aerial scaffolding according to one embodiment of the present invention. FIG. 10 is a diagram showing the combined state of an anchor and a wire in a construction method of an aerial scaffolding according to one embodiment of the present invention. FIG. 11 is a detailed drawing showing an anchor of a construction method for aerial scaffolding according to one embodiment of the present invention. FIG. 12 is a detailed drawing showing a support member of an aerial scaffolding in a construction method of an aerial scaffolding according to one embodiment of the present invention. Specific details for implementing the invention

[0036] Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the attached drawings.

[0037] FIG. 1 is a flowchart illustrating a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 2 is a state diagram illustrating the assembled state of aerial scaffolding according to a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 3 is a side view illustrating the assembled state of aerial scaffolding according to a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 4 and FIG. 5 are state diagrams illustrating the binding state of aerial scaffolding according to a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 6 is a state diagram illustrating the completed state of a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 7 is a plan view illustrating the completed state of a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 8 is a state diagram illustrating the wire installation state of a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 9 is a state diagram illustrating the platform installation state of a construction method for aerial scaffolding according to an embodiment of the present invention; FIG. 10 is a state diagram illustrating the combined state of an anchor and a wire of a construction method for aerial scaffolding according to an embodiment of the present invention; and FIG. 11 illustrates an anchor of a construction method for aerial scaffolding according to an embodiment of the present invention. FIG. 12 is a detailed drawing showing a support member of an aerial scaffolding according to an embodiment of the present invention.

[0038] As shown in FIG. 1, the construction method of an aerial scaffolding according to the present embodiment comprises an anchor installation step (S10), an aerial scaffolding assembly step (S20), a wire installation step (S30), a scaffolding and anchor connection step (S40), an aerial scaffolding binding step (S50), a platform installation step (S60), and a finishing material installation step (S70), thereby being a construction method of an aerial scaffolding for installing an aerial scaffolding under a bridge or structure.

[0039] The anchor installation step (S10) is a step of installing anchors (20) by drilling holes in a bridge or building structure. In order to install aerial scaffolding (10) on the lower part of the bridge or building structure, multiple anchor holes are drilled in both side walls of the bridge or building structure and anchors (20) are installed in each.

[0040] As shown in FIGS. 10 and 11, such an anchor (20) has a spiral formed at one end of the anchor pin (21) and an eye-shaped nut (22) installed at one end of the anchor (20) via a fastening fixing member, making it possible to easily connect with the wire (30) of the aerial scaffolding (10).

[0041] The aerial scaffolding assembly step (S20) is a step of assembling the aerial scaffolding (10) on the ground, and as shown in FIGS. 2 and 3, a plurality of second supports (12) are installed in the longitudinal direction at equal intervals on the upper part of the first support (11) in the transverse direction of the aerial scaffolding (10) and connected by a connecting member (13) such as a clamp.

[0042] The wire installation step (S30) is a step of installing a wire on the aerial scaffolding assembled on the ground in the aerial scaffolding assembly step (S20), and is installed to connect the wire (30) to both ends of the first transverse support (11) of the aerial scaffolding (10).

[0043] As shown in FIGS. 6 and 7, this wire (30) is composed of a main wire (31) installed at both ends of the first transverse support (11) of the aerial scaffolding (10) and connected to both side walls of a bridge or building structure, and an auxiliary wire (33) installed in the middle of the first transverse support (11) of the aerial scaffolding (10) and connected to the lower part of a bridge or building structure.

[0044] As shown in FIGS. 8 and 10, the main wire (31) is connected by fitting a main hook (32) at the top to the eye-shaped nut (22) of the anchor (20), and it is also possible to have a main fixing piece (31a), such as a wire clip, installed to connect and fix the main wires (31) on both sides to each other.

[0045] The auxiliary wire (33) is connected by fitting an auxiliary hook at the top to the eye-shaped nut (22) of the anchor (20), and it is also possible to install an auxiliary fixing piece, such as a wire clip, to connect and fix the auxiliary wires (33) on both sides to each other.

[0046] In addition, as shown in FIG. 12, it is preferable that a bent-shaped locking groove (11a) is cut and formed at both ends of the first transverse support (11) of the aerial scaffolding (10) so that the wire (30) is inserted and fixedly maintained to maintain a connection with the wire (30).

[0047] The aerial scaffolding and anchor connection step (S40) is a step of sequentially lifting the aerial scaffolding (10) with the wire (30) installed on it from the ground by means of high-altitude equipment and connecting it to the anchor (20) in the air, wherein the eye-shaped nut (32) installed at one end of the anchor (30) and the hook (32) installed at one end of the wire (30) of the aerial scaffolding (10) are connected so as to be detachable from each other, thereby connecting the aerial scaffolding (10) to the anchor (30) so that the scaffolding (10) can be easily installed and dismantled.

[0048] The aerial scaffolding binding step (S50) is a step of binding the aerial scaffolding (10) connected to the anchor (30) together. As shown in FIGS. 4 and 5, it is preferable to additionally install a connecting member (14) between the first support member (11) or the second support member (12) of the aerial scaffolding (10) and bind them together by means of a connecting member (13) so that the supports of the aerial scaffolding (10) are arranged on the same extension line.

[0049] The scaffolding installation step (S60) is a step of installing a scaffolding (41) on the aerial scaffolding (10) that is connected to each other in the air during the aerial scaffolding connection step (S50), and as shown in FIGS. 6 and 9, the scaffolding (41) is installed and fixed to provide a workspace for a worker on the upper surface of the aerial scaffolding (10).

[0050] The finishing material installation step (S70) is a step of installing finishing materials (40) on the aerial scaffolding (10). As shown in FIGS. 6 and 9, a third support (15) is vertically installed on the outer part of the aerial scaffolding (10) and fixed with a connecting member (13). Then, finishing materials (40), such as a flying prevention net (42), a fall prevention net (43), a tent, an entrance, and an entrance staircase, are installed on the third support (15).

[0051] As described above, according to the present invention, by assembling the aerial scaffolding on the ground, lifting it to the lower part of a bridge or structure, and installing the scaffolding by fixing it with anchors and wires, safety is ensured by assembling the scaffolding on the ground in advance, while simultaneously minimizing working time in the air and reducing the risk of aerial work.

[0052] In addition, by installing a plurality of second supports spaced apart and connected in the longitudinal direction on the upper part of the first support in the transverse direction of the aerial scaffolding, the effect of improving the fixed support strength by the supports of the aerial scaffolding and simultaneously improving the bonding performance between the supports is provided.

[0053] In addition, by installing a wire to be connected to the first transverse support of the aerial scaffolding, it is possible to secure support strength when installing the aerial scaffolding hollowly, while simultaneously improving the bonding strength between the support and the wire.

[0054] In addition, by installing additional connecting materials between the scaffolding members to bind them together, the supports of the scaffolding are positioned on the same extension line, thereby facilitating the installation of the scaffolding platforms and simultaneously distributing the load evenly when working on the platforms, which provides the effect of improving the safety performance of the scaffolding.

[0055] In addition, by installing an eye-type nut on one end of the anchor and a hook on one end of the scaffolding wire to connect them, the connection between the anchor and the wire is facilitated, while simultaneously simplifying the installation of the scaffolding, thereby reducing work time and providing the effect of enabling even unskilled workers to easily perform the construction.

[0056] The invention described above may be implemented in various other forms without departing from its technical concept or main features. Accordingly, the above embodiments are merely examples in all respects and should not be interpreted restrictively. Explanation of the symbols

[0057] 10: Aerial scaffolding 20: Anchor 30: Wire 40: Finishing material

Claims

Claim 1 A method for constructing aerial scaffolding for installing aerial scaffolding on the lower part of a bridge or structure, comprising the steps of: drilling holes in the bridge or building structure to install anchors; assembling aerial scaffolding on the ground; installing wires on the assembled aerial scaffolding; sequentially lifting the aerial scaffolding with the installed wires from the ground using high-altitude equipment and connecting them to anchors in the air; connecting the aerial scaffolding connected to the anchors to each other; and installing platforms on the interconnected aerial scaffolding. and the step of installing a finishing material on the above-described scaffolding; wherein the step of installing the wire is to install the wire to be connected to the first transverse support of the above-described scaffolding, and the first support has a bent-shaped locking groove (11a) cut out at both ends to insert and fix the wire in order to maintain a connection state with the wire, and the step of combining the above-described scaffolding and the anchor is to have an eye-shaped nut installed at one end of the anchor and a hook installed at one end of the wire of the above-described scaffolding so that they are combined, and the wire (30) is composed of a main wire (31) installed at both ends of the first transverse support (11) of the above-described scaffolding (10) and connected to both side walls of a bridge or building structure, and an auxiliary wire (33) installed in the middle of the first transverse support (11) of the above-described scaffolding (10) and connected to the lower part of a bridge or building structure, and the main wire (31) has a main hook (32) installed at the top so that the eye-shaped of the anchor (20) A method for constructing an aerial scaffold, characterized in that the main fixing piece (31a) of the wire clip is installed to connect and secure the main wires (31) on both sides by fitting them into a nut (22), and the auxiliary wire (33) has an auxiliary hook installed at the top and is connected by fitting it into an eye-shaped nut (22) of the anchor (20), and the auxiliary fixing piece of the wire clip is installed to connect and secure the auxiliary wires (33) on both sides. Claim 2 A method for constructing an aerial scaffold according to claim 1, wherein the step of assembling the aerial scaffold is characterized by installing a plurality of second supports spaced apart and connected in the longitudinal direction on the upper part of a first support in the transverse direction of the aerial scaffold. Claim 3 delete Claim 4 A method for constructing aerial scaffolding according to claim 1, wherein the step of connecting the aerial scaffoldings to each other is characterized by additionally installing a connecting material between the aerial scaffoldings to connect them, so that the supports of the aerial scaffoldings are arranged on the same extension line. Claim 5 delete

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