Waterproof structure of suspended scaffolding

Abstract

To provide a waterproofing structure for suspended scaffolding that enhances the self-supporting ability of the seams of the waterproofing sheet by simple means, thereby maintaining high waterproofing performance even when external forces are applied. [Solution] A watertight structure for a suspended scaffold that prevents water from entering by laying multiple watertight sheets 20 on the upper surfaces of multiple scaffolding boards 11, wherein a covered watertight weir 22 formed on the side edge of one adjacent watertight sheet 20 and a watertight weir 25 formed on the side edge of the other adjacent watertight sheet 20 are interposed with a suspension chain 15, and the intersection of the horizontal belt 40 provided on the covered watertight weir 22 and the suspension chain 15 is connected to prevent the joints of the watertight sheets 20 from tipping over laterally.

Description

Technical Field

[0001] The present invention relates to a water shielding structure for a suspended scaffold, in which the upper surface of scaffold boards is covered with a water shielding sheet.

Background Art

[0002] Suspended scaffolds installed below existing structures such as viaducts are used to inspect the back surface (ceiling surface) of the floor slab of the existing structure, and to perform cleaning, repair, painting, etc. as necessary. Patent Documents 1 to 3 disclose suspended scaffolds that are installed from the lower part of an existing structure via suspension chains such as chains.

[0003] In high-altitude work, wastewater is generated when performing operations such as concrete chipping using a water jet and repainting by a wet blasting method. Simply arranging a plurality of scaffold boards will cause wastewater to fall through the gaps between the scaffold boards and the openings formed in the scaffold boards, thereby contaminating passersby, vehicles, or existing facilities with the wastewater.

[0004] Conventionally, a plurality of water shielding sheets are laid on the upper surfaces of a plurality of scaffold boards to impart water shielding properties to the suspended scaffold, and wastewater accumulated on the water shielding sheets is collected by a pump. In order to impart water shielding properties to the suspended scaffold, the water shielding sheets are bonded and laid while the peripheral edges of adjacent water shielding sheets are joined together by welder welding or the like.

[0005] When laying the water shielding sheet, since the rising portion of the suspension chain is present on the scaffold board, it is important to ensure water stopping performance at the rising portion of the suspension chain. In a structure in which the suspension chain is fixed to the back side of the scaffold board via a suspension fitting as in Patent Document 3, used wastewater accumulated on the water shielding sheet flows down through the mounting hole of the suspension fitting, so the mounting hole of the suspension fitting is closed with curing tape or the like. Patent Document 4 discloses a suspended scaffold in which the side edge portion of a water shielding sheet is bent and raised at a constant width to form a strip-shaped water stop weir, and the water stop weirs of adjacent water shielding sheets are butted against each other to form a water stop wall rising from the scaffold board. To increase the rigidity of the water-stopping weir, a rigid reinforcing material is integrally attached along the vertical section of the waterproof sheet to increase its hardness, thereby enabling wastewater to be dammed up on the upper surface of the scaffolding boards. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2015-81455 [Patent Document 2] Japanese Patent Publication No. 2015-81456 [Patent Document 3] Japanese Patent Publication No. 2017-128876 [Patent Document 4] Japanese Patent Publication No. 2021-75854 [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] Conventional suspended scaffolding, which is constructed by laminating waterproof sheets together, has the following inherent problems. <1> It is difficult to completely seal the edges of the waterproof sheet when bonding it, making it prone to water leakage at the seams. <2> Welding seams in waterproofing sheets using a welding machine requires not only advanced welding techniques but also a significant amount of time and cost for the welding process. <3> It is difficult to completely seal the gap between the suspension chain and the mounting hole with tape, and there is a risk that wastewater may seep in through the gap in the tape and cause leakage.

[0008] The suspended scaffolding described in Patent Document 4 has the following problems. <1> Because the installation locations of the suspension chains differ depending on the existing structure, it is difficult to align the waterproof sheet on-site to accommodate the suspension chains. <2> To enhance the self-supporting nature of the water-stopping weir, a rigid material is integrally attached to the water-stopping sheet along the weir to reinforce it. However, because the water-stopping weir lacks sufficient self-support, if it is crushed by the weight of the water collection hose or stepped on by a worker, the weir will collapse and lose its weir function, causing water to leak through the gaps in the weir. <3> The increased number of components and components associated with the waterproof sheet will result in higher overall waterproofing costs.

[0009] The present invention has been made in view of the above points, and its purpose is to provide a watertight structure for suspended scaffolding that prevents water leakage. <1> To enhance the self-supporting ability of the seams in the waterproof sheet, so that high waterproofing performance can be maintained even when external forces are applied. <2> Even if the attachment position of the suspension chains differs depending on the site, the waterproof sheet can be laid without being affected by the attachment position of the suspension chains. <3> To reduce waterproofing costs by reducing the number of components attached to the waterproof sheet. [Means for solving the problem]

[0010] The present invention provides a waterproofing structure for a suspended scaffold, comprising a plurality of suspension chains hanging from an existing structure, a plurality of scaffolding boards connected to the lower part of the plurality of suspension chains and stretched across the lower part of the existing structure, and a plurality of waterproofing sheets laid on the upper surface of the plurality of scaffolding boards to prevent water from entering, wherein the waterproofing sheet comprises a sheet body laid on the upper surface of the scaffolding board, at least one covered water-stopping weir formed by bending up one of the opposing sides of the sheet body, and at least one uncovered water-stopping weir formed by bending up the other opposing side of the sheet body, and the covered water-stopping weir is at a predetermined height from the sheet body The structure comprises a vertically standing, strip-shaped water-stopping weir body, a water-stopping cover formed to be continuous with the water-stopping weir body, and a horizontal belt integrally provided along the top of the water-stopping weir body. Multiple waterproof sheets are laid on the upper surface of a scaffolding board so that the covered water-stopping weir and the water-stopping weir are adjacent to each other. With a suspension chain interposed between the covered water-stopping weir and the water-stopping weir, the waterproof sheets are raised from the scaffolding board and joined together integrally between the water-stopping weir body and the water-stopping weir using a joining means. The intersection of the suspension chain and the horizontal belt is connected to prevent the joint from tipping over laterally, and the joint is lifted upward. In another embodiment of the present invention, the water-stopping cover of the covered water-stopping weir is placed over the joint between the water-stopping weir body and the water-stopping weir to prevent water from entering. In another embodiment of the present invention, the suspension chain is housed in a slit opened along the transverse direction of the covered water-stopping weir. In another embodiment of the present invention, the horizontal belt has a plurality of suspension holes, and hangers are attached between the suspension chain and any of the suspension holes of the horizontal belt to connect the suspension chain and the horizontal belt. In another embodiment of the present invention, the waterproof sheet is provided with a covered water-stopping weir and a water-stopping weir on a pair of opposing sides of the sheet body. In another embodiment of the present invention, the waterproof sheet is provided with a water-stopping weir with a cover of the same type or a water-stopping weir of the same type on a pair of opposing side edges of the sheet body. In another embodiment of the present invention, the fastening means is one of a hook-and-loop fastener, a snap button, a magnet, or an adhesive tape. In another embodiment of the present invention, the hanger is one or a plurality of connecting bands or connecting ropes. ADVANTAGEOUS EFFECTS OF THE INVENTION

[0011] The present invention achieves at least one of the following effects. <1> The water stop weirs with covers formed on the side edge portions of adjacent water-shielding sheets are erected from the scaffolding plates, brought face-to-face and joined together, and the intersections between the suspension chains and the transverse belts are connected, whereby the joint portion of the water-shielding sheets erected from the scaffolding plates can be reliably prevented from falling sideways. Therefore, even if a downward external force is applied to the joint portion of the adjacent water-shielding sheets, leakage of waste water through the seam between the adjacent water-shielding sheets can be reliably prevented. <2> Since the adjacent water-shielding sheets are joined with the suspension chain interposed between their joint portions, the water-shielding sheets can be laid without being affected by the mounting position of the suspension chain. <3> Since the transverse belt is provided with a plurality of suspension holes, the transverse belt can be connected to the suspension chain at an arbitrary position for lifting. <4> Since it is not necessary to attach a hard material along the side edge portion of the water-shielding sheet to enhance the self-supporting performance of the water stop weir, the number of components attached to the water-shielding sheet can be reduced, and the waterproofing cost can be lowered. <5> After the side edge portions of adjacent water-shielding sheets are butted and joined together, the adjacent water-shielding sheets can be connected to each other by a simple operation of merely covering the joint portion with a water stop cover. Therefore, compared with the conventional method of welding the seams of water-shielding sheets, the time and cost required for seam treatment can be reduced. <6> By forming slits in the water stop cover on site, interference with the suspension chains is avoided, and the water stop cover can be placed over the joint portion of the water-shielding sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] [Figure 1] Explanatory view of the water-shielding structure for a suspended scaffolding according to the present invention [Figure 2]Cross-sectional view of the rising portion of the suspension chain immediately before the water stop cover is put on [Figure 3] Cross-sectional view of the rising portion of the suspension chain after the water stop cover has been put on [Figure 4] Perspective view of the rising portion of the suspension chain in a state where the horizontal belt is lifted [Figure 5] Explanatory diagram of the lifting structure for the water shielding sheet of the suspended scaffolding [Mode for Carrying Out the Invention]

[0013] Hereinafter, the present invention will be described in detail with reference to the drawings.

[0014] 1. Presupposed Suspended Scaffolding Referring to Fig. 1, the suspended scaffolding 10 presupposed by the present invention is a suspended work floor for high places that is installed to hang directly below existing structures such as bridges and elevated roads. The suspended scaffolding 10 illustrated in this example includes a plurality of scaffolding boards 11, a single-tube suspension frame 12 on which the plurality of scaffolding boards 11 are placed, and suspension chains 15 installed between the existing structure and the single tubes.

[0015] To impart water stopping performance to the plurality of scaffolding boards 11, a water shielding sheet 20 is used as in the conventional art, but in the present invention, as will be described later, the self-supporting structure at the peripheral edge of the water shielding sheet 20 is improved.

[0016] <1> Scaffolding Board The scaffolding board 11 is a known work scaffolding having a rectangular shape. As the scaffolding board 11, strip-shaped panels made of aluminum or steel connected in the width direction are applicable. The plurality of scaffolding boards 11 hang down below the existing structure via the suspension frame 12 and the suspension chains 15.

[0017] <2> Suspension Frame The suspension frame 12 is a single-tube frame body for supporting the scaffolding boards 11, and is connected to the lower end of each suspension chain 15. The suspension frame 12 is assembled by arranging a plurality of single tubes in vertical and horizontal directions so that a plurality of scaffolding boards 11 can be placed thereon.

[0018] <3> suspension chain The suspension chain 15 is a known suspension member such as a chain attached to the underside of an existing structure. The suspension chain 15 is fixed at its upper end to the underside of the existing structure, and its lower end is attached to the suspension frame 12. To attach the lower end of the suspension chain 15 to the suspension frame 12, it may be connected via a separate suspension fitting, or the lower end of the suspension chain 15 may be directly connected to the suspension frame 12. Multiple suspension chains 15 are arranged in a row along the width direction of the scaffolding board 11, and multiple such rows are arranged along the longitudinal direction of the scaffolding board 11. The spacing of the suspension chains 15 can be appropriately selected according to the width dimension of the scaffolding board 11.

[0019] It should be noted that the suspended scaffolding 10 using the suspension frame 12 and suspension chain 15 is just one example, and the suspended scaffolding 10 is not limited to the form shown in this example. It also includes known suspended scaffolding using steel wire or other wires as a substitute for the suspension chain 15.

[0020] 2. Waterproof sheet <1> Overview of waterproof sheeting As shown in Figure 1, the waterproof sheet 20 is a sheet-like material that covers the upper surface of the scaffolding board 11 to prevent wastewater from falling through the scaffolding board 11. Referring to Figures 1 and 4, the waterproof sheet 20 comprises a sheet body 21, at least one covered water-stopping weir 22 formed by bending up one of the opposing sides of the sheet body 21, and at least one water-stopping weir 25 formed by bending up the other opposing side of the sheet body 21.

[0021] In this invention, a suspension structure is adopted in which adjacent watertight sheets 20, 20 covered watertight weirs 22 and watertight weirs 25 are erected, a suspension chain 15 is placed between them, and the two erected covered watertight weirs 22 and watertight weirs 25 are joined together with a joining means 26, and then the joint between the covered watertight weirs 22 and watertight weirs 25 is supported by the suspension chain 15 via a hanger 40.

[0022] <2> Combination of a covered water-stopping weir and a water-stopping weir In the present invention, the configuration of the combination of a water-stopping weir 22 with a cover and a water-stopping weir 25 without a cover element is as follows.

[0023] In other words, a waterproof sheet 20 may be used in which a covered water-stopping weir 22 and a water-stopping weir 25 are combined and provided on a pair of opposing sides of the sheet body 21, or two types of waterproof sheets 20 may be used in combination, each having the same type of covered water-stopping weir 22 or the same type of water-stopping weir 25 on a pair of opposing sides of the sheet body 21.

[0024] In all configurations, the common feature is the use of a covered water-stopping weir 22 and a water-stopping weir 25 without a cover element facing each other. The waterproof sheet 20 is described in detail below.

[0025] <3> Seat body The sheet body 21 is a rectangular waterproof sheet and is used by laying it between two adjacent rows of suspension chains 15 in the longitudinal direction of the scaffolding board 11. The sheet thickness of the sheet body 21 can be selected as appropriate. The sheet body 21 is a waterproofed polyvinyl chloride sheet, and in practical terms, tarpaulin fabric is preferable.

[0026] <4> Covered water-stopping weir The covered water-stopping weir 22 is a strip-shaped portion formed by extending at least one side end of the sheet body 21, with the extended portion being foldable in half. As shown in Figure 4, the covered water-stopping weir 22 comprises a strip-shaped water-stopping weir body 23 that can stand up to a predetermined height from the sheet body 21, a water-stopping cover 24 that is continuous with the water-stopping weir body 23 and is formed to be foldable, and a strip-shaped horizontal belt 30 integrally provided along the top of the water-stopping weir body 23.

[0027] The water-stopping weir body 23, the water-stopping cover 24, and the horizontal belt 30 are formed along the longitudinal direction of the sheet body 21 and are parallel to each other.

[0028] <4.1> Water-stopping weir body The water-stopping weir body 23 is a portion of the sheet body 21 that forms a weir section on its side. The height of the water-stopping weir body 23 can be selected as appropriate, but it should be of a size that is sufficient to dam up wastewater.

[0029] <4.2> Water stop cover The water-stopping cover 24 is a cover sheet that covers the joint between the standing water-stopping weir body 23 and the water-stopping weir 25, which are facing each other, in order to prevent wastewater from entering the interior of the joint. The water-stopping cover 24 extends in the expansion direction of the water-stopping weir body 23 and is continuous along the longitudinal direction of the sheet body 21. When using the covered water-stopping weir 22, the suspension chain 15 is housed in a notch (slit 24a) in the water-stopping cover 24, which is made to match the installation position of the suspension chain 15.

[0030] <4.3> Horizontal belt The horizontal belt 30 works in cooperation with the hanger 40 to obtain a reaction force from the suspension chain 15, and functions to prevent the joint between the water-stopping weir body 23 and the water-stopping weir 25 from tilting, thereby maintaining the upright position of the joint. The horizontal belt 30 is a non-stretchable, strip-shaped material continuously provided along the top of the water-stopping weir body 23, and its lower edge is integrally fixed to the surface side of the top of the water-stopping weir body 23 by means of stitching or adhesive.

[0031] The horizontal belt 30 is provided with multiple suspension holes 31 spaced apart. The horizontal belt 30 is provided with suspension holes 31 in order to allow the suspension position of the horizontal belt 30 to be freely selected in accordance with the position of the suspension chain 15.

[0032] <4.4> Materials for the water-stopping weir body, water-stopping cover, and horizontal belts The water-stopping weir body 23, water-stopping cover 24, and horizontal belt 30 described above may be formed from the same material as the sheet body 21, or they may be formed by joining different materials. To form the horizontal belt 30 using the sheet body 21, for example, the sheet body 21 can be folded in half between the water-stopping weir body 23 and the water-stopping cover 24 to form the horizontal belt 30.

[0033] <4.5>Joining means On the opposing surfaces (back surfaces) of the upright covered water stop weir 22, between the water stop weir body 23 and the water stop weir 25, a joining means 26 is provided along the longitudinal direction of the sheet body 21. The joining means 26 is a member that detachably joins the opposing surfaces of the water-stopping weir body 23 and the water-stopping weir 25. The joining means 26 can include hook-and-loop fasteners, snap buttons, magnets, adhesive tape, etc. In practical terms, a hook-and-loop fastener with a male-female configuration is preferred as the joining means 26.

[0034] In this example, we will describe a configuration in which the joining means 26 are continuously installed on the opposing surfaces (back surfaces) of the opposing water-stopping weir body 23 and water-stopping weir 25, but it is also possible to install the joining means 26 intermittently. In the configuration where the joining means 26 are installed in a continuous manner, in addition to the joining function, the hardness of the water-stopping weir body 23 and the water-stopping weir 25 is increased, improving the shape retention performance.

[0035] <5> hanger The hanger 40 is a connecting member that connects the suspension chain 15 and the horizontal belt 30, and can use one or more connecting bands or ropes such as cable ties. In this invention, a horizontal belt 30 and a hanger 40 are combined to obtain a reaction force from the suspension chain 15, thereby forcibly lifting and holding the joint between the covered water-stopping weir 22 and the water-stopping weir 25, and maintaining the self-supporting nature of the joint. Therefore, it becomes unnecessary to add rigid reinforcing members to the water-stopping weir body 23 and the water-stopping weir 25 during installation.

[0036] <6> Water-stopping weir The water-stopping weir 25 is a part that forms a weir section on the side of the sheet body 21 and does not have a cover element. The water-stopping weir 25 is approximately the same height as the water-stopping weir body 23 of the covered water-stopping weir 22. A connecting means 26 is attached to the back surface of the water-stopping weir 25.

[0037] [Method for laying waterproof sheet] Next, we will explain how to lay the waterproof sheet 20 on the suspended scaffolding 10.

[0038] <1> Installation of waterproof sheet As shown in Figure 1, multiple waterproof sheets 20 are laid out on the upper surfaces of multiple scaffolding boards 11. The waterproof sheet 20 may be laid along the width direction of the scaffolding board 11, or along the longitudinal direction of the scaffolding board 11. It is sufficient if the waterproof sheet 20 is laid so that the covered water-stopping weir 22 and the water-stopping weir 25 are adjacent to each other.

[0039] <2> Standing up at the seams of the waterproof sheet Next, the water-stopping weir bodies 23 and water-stopping weirs 25 formed on the side ends of each water-stopping sheet 20 are bent and raised to stand upright. With the suspension chain 15 sandwiched in between, the water-stopping weir body 23 and the water-stopping weir 25 are brought face to face, and the joint is integrated through the joining means 26. In this case, as shown in Figure 2, the water-stopping cover 24 is either lifted up or folded back so that it is not interposed between the water-stopping weir body 23 and the water-stopping weir 25. Each waterproof sheet 20 is divided into multiple sections by raising the joints along the width or length on the upper surface of the scaffolding board 11.

[0040] Furthermore, for the side edges of the waterproof sheet 20 where the waterproof weir body 23 or waterproof weir 25 is not provided, waterproofing measures can be taken by laying down a rag to block the water flow or by bending the side edges of the waterproof sheet 20 upwards.

[0041] <3> Covering the joint with a watertight cover Simply joining the water-stopping weir body 23 and the water-stopping weir 25 by pressing them together may allow wastewater to seep in through the gap in the joint. Therefore, as shown in Figure 3, the water-stopping cover 24 of the covered water-stopping weir 22 is placed over the water-stopping weir 25 side to seal the joint between the water-stopping weir body 23 and the water-stopping weir 25 and stop the water from entering the joint.

[0042] When attempting to place the water-stopping cover 24 over the joint between the water-stopping weir body 23 and the water-stopping weir 25 with the suspension chain 15 interposed, the water-stopping cover 24 interferes with the suspension chain 15. Therefore, as shown in Figure 4, a slit 24a is formed in the transverse direction of the water-stopping cover 24 at the site, and the suspension chain 15 is housed in the slit 24a, thereby avoiding interference between the suspension chain 15 and the water-stopping cover 24. Since the water-stopping cover 24 is made of resin sheet, a slit 24a can be easily formed by making a cut at any desired position to match the installation location of the suspension chain 15.

[0043] <4> Lifting the joint of the water-stopping weir Simply joining the covered water-stopping weir 22 and the water-stopping weir 25 makes the joint prone to collapsing. Therefore, as shown in Figure 5, a hanger 40 is connected between the suspension chain 15 and the horizontal belt 30 to lift the joint upwards. In other words, hangers 40 are attached to the intersections of the suspension chains 15 and the horizontal belts 30, and multiple points on each horizontal belt 30 are lifted by the suspension chains 15 to prevent the joints from tipping over laterally. Since the horizontal belt 30 is provided with multiple suspension holes 31, the horizontal belt 30 and the suspension chain 15 can be connected without being affected by the installation position of the suspension chain 15.

[0044] [Waterproofing and self-supporting properties of seams in waterproof sheets] Referring to Figure 5, the watertightness and self-supporting properties of the seams of the waterproof sheet 20 will be explained in detail.

[0045] <1> Water-sealing properties of the joints of the water-sealing weir In this invention, by simply covering the waterproof cover 24, it becomes possible to seal the joint between the waterproof weir body 23 and the waterproof weir 25, which is the seam of the waterproof sheet 20, along its entire length. Therefore, wastewater that drips onto the waterproof sheet 20 is blocked at the joint between the water-stopping weir body 23 and the water-stopping weir 25. Furthermore, wastewater dripping onto the joint between the water-stopping weir body 23 and the water-stopping weir 25 is guided along the water-stopping cover 24, thereby preventing water from entering the joint. By collecting and recovering the wastewater accumulated on the multiple waterproof sheets 20 using a pump as needed, leakage of wastewater from the seams of the waterproof sheets 20 can be reliably prevented.

[0046] Furthermore, if waterproof tape (not shown) is wrapped around the base of the slit 24a housing the suspension chain 15 shown in Figure 4 to seal it, or if the area around the suspension chain 15 is sealed with existing waterproofing means, the watertightness of the rising portion of the suspension chain 15 will be further enhanced.

[0047] <2> Self-supporting nature of the joints of the water-stopping weir On the upper surface of the scaffolding planks, the joint between the covered water-stopping weir 22 and the water-stopping weir 25, which are the seams of the waterproof sheet 20, is upright. Therefore, it is anticipated that water collection hoses may cross the joints of the waterproof sheet 20, or that workers may accidentally step on the joints of the waterproof sheet 20.

[0048] In this invention, the joints of the waterproof sheet 20 are lifted between adjacent suspension chains 15 via hangers 40 and horizontal belts 30, preventing the joints from tipping over laterally. Therefore, even if a downward load (suspension load) is applied to the joint of the waterproof sheet 20 between adjacent suspension chains 15, the joint will not tip over sideways. The downward load acting on the joint of the waterproof sheet 20 is transmitted to the suspension chain 15 through the hanger 40 and the horizontal belt 30, and is ultimately supported by the existing structure. When a load is applied to the joint of the waterproof sheet 20, some deflection deformation occurs at the joint of the waterproof sheet 20, but the tensile strength of the horizontal belt 30 maintains the upright position of the joint. In this way, even if a large load is applied to the joint between the water-stopping weir body 23 and the water-stopping weir 25, the joint of the waterproof sheet 20 can be prevented from tipping over laterally, thereby maintaining the good water-stopping function of the joint. [Explanation of Symbols]

[0049] 10. Suspended scaffolding 11. Scaffolding boards 12... Hanging frame 15. Lifting chain 20..Waterproof sheet 21.....Seat body 22. Covered water-stopping weir 23. Water-stopping weir body 24..Water stop cover 24a...Slit 25..Water-stopping weir 26...Joining means 30... Horizontal belt 31..Hanging holes 40 hangers

Claims

1. A watertight structure for a suspended scaffold, comprising a plurality of suspension chains hanging from an existing structure, a plurality of scaffolding boards connected to the lower part of the plurality of suspension chains and stretched across the lower part of the existing structure, and a plurality of watertight sheets laid on the upper surface of the plurality of scaffolding boards to prevent water from entering, The aforementioned waterproof sheet comprises a sheet body laid on the upper surface of the scaffolding board, A water-stopping weir with a cover is formed by bending up one of the opposing sides of the sheet body, The sheet body comprises at least one water-stopping weir without a cover, formed by bending and raising the other opposing side of the sheet body, The aforementioned covered water-stopping weir comprises a strip-shaped water-stopping weir body that can be erected at a predetermined height from the sheet body, A water-stopping cover formed in a manner continuous with the water-stopping weir body, It comprises a horizontal belt integrally provided along the top of the main body of the water-stopping weir, Multiple waterproof sheets are laid on the upper surface of the scaffolding board so that the covered water-stopping weir and the water-stopping weir are adjacent to each other. With the aforementioned covered water-stopping weir and water-stopping weir interposed with a suspension chain, the water-stopping sheets of each water-stopping sheet, which are raised from the scaffolding board and facing each other, are integrally joined to the water-stopping weir body and water-stopping weir using a joining means. The joint is characterized by being lifted upward by connecting the intersection of the suspension chain and the horizontal belt in order to prevent the joint from tipping over laterally. Waterproofing structure for suspended scaffolding.

2. The watertight structure for a suspended scaffolding according to claim 1, characterized in that the watertight cover of the covered watertight weir is placed over the joint between the watertight weir body and the watertight weir to prevent water from entering.

3. The watertight structure for a suspended scaffolding according to claim 2, characterized in that the suspension chain is housed in a slit opened along the transverse direction of the covered watertight weir.

4. The watertight structure for a suspended scaffolding according to claim 1, characterized in that the horizontal belt has a plurality of suspension holes, and a hanger is attached between the suspension chain and any suspension hole of the horizontal belt to connect the suspension chain and the horizontal belt.

5. The waterproofing structure for a suspended scaffolding according to claim 1, characterized in that the waterproofing sheet is provided with a covered water-stopping weir and a water-stopping weir on a pair of opposing side edges of the sheet body.

6. The waterproofing structure for a suspended scaffolding according to claim 1, characterized in that the waterproofing sheet is provided with a waterproof weir with a cover of the same type or a waterproof weir of the same type on a pair of opposing side edges of the sheet body.

7. The waterproof structure for a suspended scaffolding according to claim 1, characterized in that the fastening means is one of a hook-and-loop fastener, a snap button, a magnet, or adhesive tape.

8. The watertight structure for a suspended scaffolding according to claim 4, characterized in that the hanger is one or more connecting bands or connecting ropes.

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