Water-resistant structure of suspended scaffolding

Abstract

To provide a waterproof structure of a suspended scaffolding capable of maintaining high waterproof performance even when an external force is applied by improving the self-sustainability of the joints of a waterproof sheet by a simple means. [Solution] A waterproof structure for suspended scaffolding that provides waterproofing by laying multiple waterproof sheets 20 on the upper surface of multiple scaffolding boards 11, in which a suspension chain 15 is interposed between a covered waterproof dam 22 formed on the side edge of one adjacent waterproof sheet 20 and a waterproof dam 25 formed on the side edge of the other adjacent waterproof sheet 20, and a cross belt 40 provided on the covered waterproof dam 22 is connected at the intersection with the suspension chain 15 to prevent the joints of the waterproof sheets 20 from tipping over sideways.

Description

[Technical Field]

[0001] The present invention relates to a waterproof structure for suspended scaffolding in which the upper surface of the scaffolding board is covered with a waterproof sheet. [Background technology]

[0002] Using suspended scaffolding set up below existing structures such as viaducts, the underside (ceiling surface) of the deck of the existing structure can be inspected, and cleaning, repairing, painting, etc. can be carried out as necessary. Patent Documents 1 to 3 disclose suspended scaffolding that is installed from the bottom of an existing structure via a suspending chain or the like.

[0003] When working at height, wastewater is generated when performing tasks such as chipping concrete with a water jet or repainting using the wet blasting method. Simply lining up multiple scaffolding boards allows wastewater to fall through the gaps between the boards and through the holes in the boards, contaminating passersby, vehicles, existing facilities, etc.

[0004] Conventionally, suspended scaffolding is made waterproof by laying multiple waterproof sheets on top of multiple scaffolding boards, and wastewater that accumulates on the waterproof sheets is collected using a pump. To make the suspended scaffolding waterproof, the waterproof sheets are laid down by joining the edges of adjacent sheets together using welding or other methods.

[0005] When laying the waterproof sheet, it is important to ensure that the suspension chains are waterproof at the rising parts of the suspension chains, as they are located on the scaffolding boards. In a structure in which a suspension chain is fixed to the back of a scaffolding board via a suspension fitting, as in Patent Document 3, used wastewater that has accumulated on the waterproof sheet flows down through the mounting holes of the suspension fitting, so the mounting holes of the suspension fitting are sealed with masking tape or the like. Patent Document 4 discloses a suspended scaffolding in which the side edges of a waterproof sheet are bent up at a fixed width to form a strip-shaped water-stopping dam, and the water-stopping dams of adjacent waterproof sheets are butted together to form a water-stopping wall that stands up from the scaffolding boards. In order to allow wastewater to be blocked on the top surface of the scaffolding boards, hard reinforcing material is attached integrally along the rising part of the waterproof sheet to increase hardness, thereby improving the waterstop dam's self-sustaining ability. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-81455 [Patent Document 2] Japanese Patent Application Laid-Open No. 2015-81456 [Patent Document 3] Japanese Patent Application Laid-Open No. 2017-128876 [Patent Document 4] Patent Publication No. 2021-75854 Summary of the Invention [Problem to be solved by the invention]

[0007] Conventional suspended scaffolding, which involves laying waterproof sheets together, has the following problems: <1> It is difficult to completely waterproof the edges of the waterproof sheet when it is attached, and water leakage is likely to occur at the joints. <2> Welding the seams of waterproof sheets using a welder not only requires advanced welding skills, but also takes a lot of time and costs money. <3> It is difficult to completely seal the gap between the hanging chain and the mounting hole with tape, and there is a risk of wastewater seeping in through the gap in the tape and causing leakage.

[0008] The suspended scaffolding described in Patent Document 4 involves the following problems. <1> Because the installation position of the suspension chains varies depending on the existing structure, it is difficult to align the waterproof sheet on-site to correspond to the suspension chains. <2> To enhance the self-sustaining ability of the water-stopping dam, a hard material is attached along the water-stopping dam of the waterproof sheet to reinforce it. However, because the water stop dam is not strong enough to stand on its own, if it is crushed by the weight of the water collection hose or if a worker steps on it, the water stop dam will collapse and lose its function as a dam, which will lead to water leakage through gaps in the water stop dam. <3> The final waterproofing cost is higher because the number of parts required to make the waterproof sheet is greater.

[0009] The present invention has been made in consideration of the above points, and its object is to provide a water-proof structure for suspended scaffolding that prevents water leakage. <1> By improving the self-sustaining properties of the waterproof sheet joints, high waterproofing performance can be maintained even when external forces are applied. <2> To lay a waterproof sheet without being affected by the installation position of a hanging chain even when the installation position of the hanging chain differs depending on the site. <3> To reduce waterproofing costs by reducing the number of parts attached to a waterproof sheet. [Means for solving the problem]

[0010] The present invention provides a waterproof structure for a suspended scaffold, which comprises a plurality of suspension chains suspended from an existing structure, and a plurality of scaffolding boards connected to the lower portions of the plurality of suspension chains and hung below the existing structure, and which provides waterproofing by laying a plurality of waterproof sheets on the upper surfaces of the plurality of scaffolding boards, wherein the waterproof sheets comprise a sheet body laid on the upper surfaces of the scaffolding boards, at least one water cutoff dam with a cover formed by bending up one of the opposing side edges of the sheet body, and at least one water cutoff dam without a cover formed by bending up the other opposing side edge of the sheet body. and a weir, wherein the covered water cut-off weir comprises a band-shaped water cut-off weir body that can be erected from the sheet body to a predetermined height, a water cut-off cover formed to be continuous with the water cut-off weir body, and a horizontal belt that is integrally provided along the top of the water cut-off weir body, and a plurality of waterproof sheets are laid on the upper surface of the scaffolding board so that the covered water cut-off weir and the water cut-off weir are adjacent to each other, and with a hanging chain interposed between the covered water cut-off weir and the water cut-off weir, the water cut-off weir bodies of each waterproof sheet that is erected from the scaffolding board and placed next to each other are joined together by joining means, By covering the water stop cover on the water stop dam side, the joint formed by joining the water stop dam body and the water stop dam of each waterproof sheet that is erected from the scaffolding board and joined together is sealed with the water stop cover,The joint is lifted upward by connecting the intersection of the suspending chain and the horizontal belt so as to prevent the joint from tipping over. 。 Book In another embodiment of the invention, the hanging chain is housed in a slit opened along the transverse direction of the covered water cut-off dam. In another embodiment of the present invention, the horizontal belt has a plurality of suspension holes, and a hanger is 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 cutoff dam and a water cutoff dam on a pair of opposing side edges of the sheet body, respectively. In another embodiment of the present invention, the waterproof sheet is provided with the same type of covered water cut-off dam or the same type of water cut-off dam on a pair of opposing side edges of the sheet body. In another embodiment of the present invention, the joining means is any one of a hook-and-loop fastener, a snap button, a magnet, and an adhesive tape. In another embodiment of the invention, the hanger is one or more tie bands or tie ropes. [Effects of the Invention]

[0011] The present invention has at least one of the following advantages. <1> The covered water stop dams and water stop dams formed on the side edges of adjacent waterproof sheets are raised from the scaffolding boards and joined together, and the intersections of the suspension chains and cross belts are connected, thereby reliably preventing the joints of the waterproof sheets raised from the scaffolding boards from tipping over sideways. Therefore, even if a downward external force is applied to the joint between adjacent waterproof sheets, leakage of wastewater through the joint between the adjacent waterproof sheets can be reliably prevented. <2> Since the suspension chain is interposed between the joints of adjacent waterproof sheets, the waterproof sheets can be laid without being affected by the attachment position of the suspension chain. <3> Since the horizontal belt has a plurality of suspension holes, the horizontal belt can be connected to the suspension chain at any position and lifted. <4> In order to improve the self-supporting ability of the water-stopping dam, there is no need to attach hard materials along the sides of the waterproof sheet, which reduces the number of parts attached to the waterproof sheet and reduces waterproofing costs. <5> After joining the side edges of adjacent waterproof sheets together, the adjacent waterproof sheets can be joined by a simple operation of covering the joint with a waterproof cover. Therefore, compared to the conventional method of welding the seams of waterproof sheets, the time and cost required to process the seams can be reduced. <6> By forming a slit in the waterproof cover on-site, the waterproof cover can be placed over the joint of the waterproof sheet while avoiding interference with the hanging chain. [Brief explanation of the drawings]

[0012] [Figure 1] An explanatory diagram of the waterproof structure of the suspended scaffolding according to the present invention [Figure 2] Cross-sectional view of the rising part of the suspension chain just before the waterproof cover is put on [Figure 3] Cross-sectional view of the rising part of the suspension chain after the waterproof cover has been installed [Figure 4] A perspective view of the rising part of the lifting chain when the horizontal belt is lifted [Figure 5] An explanatory diagram of the lifting structure of the waterproof sheet of the suspended scaffolding DETAILED DESCRIPTION OF THE INVENTION

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

[0014] 1. Prerequisite suspended scaffolding Referring to FIG. 1, the suspended scaffolding 10 on which the present invention is based is a suspended work platform for high places that is suspended and installed directly below an existing structure such as a bridge or an elevated road. The suspended scaffolding 10 illustrated in this example comprises a plurality of scaffolding boards 11, a suspension frame 12 made of a single pipe on which the plurality of scaffolding boards 11 are placed, and a suspension chain 15 installed between the existing structure and the single pipe.

[0015] In order to provide waterproofing to multiple scaffolding boards 11, a waterproof sheet 20 is used as in the conventional method, but in the present invention, improvements have been made to the self-supporting structure of the peripheral edge of the waterproof sheet 20, as will be described later.

[0016] <1> Scaffolding boards The scaffolding plank 11 is a known square work scaffolding. The scaffolding boards 11 may be aluminum or steel strip panels connected in the width direction. A plurality of scaffolding boards 11 hang down below the existing structure via a suspension frame 12 and a suspension chain 15.

[0017] <2> hanging frame The suspension frame 12 is a frame body made of a single pipe for supporting the scaffolding board 11 and is connected to the lower end of each suspension chain 15. A suspension frame 12 is assembled by arranging a plurality of single pipes in the vertical and horizontal directions so that a plurality of scaffolding boards 11 can be placed on them.

[0018] <3> Hanging chain The suspension chain 15 is a suspension member such as a known chain attached to the underside of the existing structure. The upper end of the suspension chain 15 is fixed to the underside of the existing structure, and the lower end is attached to the suspension frame 12. The lower end of the hanging chain 15 can be attached to the hanging frame 12 via a separate hanging fixture, or the lower end of the hanging chain 15 can be directly connected to the hanging frame 12. A plurality of the suspension chains 15 are arranged in a row along the width direction of the scaffolding board 11, and a plurality of these are arranged in a row along the longitudinal direction of the scaffolding board 11. The installation interval of the suspension chains 15 can be selected appropriately according to the width dimension of the scaffolding board 11.

[0019] Note that the suspended scaffolding 10 using the suspension frame 12 and the suspension chain 15 is just one example, and the suspended scaffolding 10 is not limited to the form of this example, but includes known suspended scaffolding that uses steel wire, wire, etc. as an alternative to the suspension chain 15.

[0020] 2.Waterproof sheet <1> Overview of waterproof sheets As shown in FIG. 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 dam 22 formed by bending and raising one of the opposing side edges of the sheet body 21, and at least one water-stopping dam 25 formed by bending and raising the other opposing side edge of the sheet body 21.

[0021] In the present invention, the covered water stop weir 22 and the water stop weir 25 of adjacent waterproof sheets 20, 20 are erected, and a hanging chain 15 is sandwiched between them and the erected covered water stop weir 22 and the water stop weir 25 are joined using a joining means 26, and then a hanging structure is adopted in which the joint between the covered water stop weir 22 and the water stop weir 25 is lifted and supported by the hanging chain 15 via a hanger 40.

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

[0023] In other words, a waterproof sheet 20 can be used in which a covered water stop dam 22 and a covered water stop dam 25 are combined on each of a pair of opposing side edges of the sheet body 21, or two types of waterproof sheets 20 can be used in combination in which the same type of covered water stop dam 22 or the same type of covered water stop dam 25 is combined on each of a pair of opposing side edges of the sheet body 21.

[0024] In either form, they have in common the fact that a water cut-off weir with a cover 22 and a water cut-off weir 25 without a cover element are used in combination. The waterproof sheet 20 will be 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 rows of hanging chains 15 adjacent to each other in the longitudinal direction of the scaffolding board 11. The thickness of the sheet body 21 can be selected appropriately. The sheet body 21 is a waterproof vinyl chloride sheet, and in practice, tarpaulin fabric is preferred.

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

[0027] The waterstop weir body 23, the waterstop cover 24 and the bridging belt 30 are formed along the longitudinal direction of the seat body 21 and are parallel to one another.

[0028] <4.1> Water cutoff dam body The water-stopping dam body 23 is a portion for forming a dam portion on the side of the sheet body 21. The height of the water cut-off weir body 23 can be selected as appropriate, as long as it is a size that allows for the damming of wastewater.

[0029] <4.2>Waterproof cover The water stop cover 24 is a cover sheet that covers the joint between the water stop weir main body 23 and the water stop weir 25, which are placed upright and joined together, to prevent wastewater from entering the inside of the joint. The water stop cover 24 extends in the expansion direction of the water stop weir body 23 and is continuous along the longitudinal direction of the sheet body 21. When using the covered water cut-off weir 22, the hanging chain 15 is housed in a cutout (slit 24a) in the water cut-off cover 24 that is opened to match the installation position of the hanging chain 15.

[0030] <4.3> Horizontal belt The cross belt 30 works in cooperation with the hanger 40 to receive a reaction force from the suspension chain 15, and functions to prevent the joint between the water-stopping weir main body 23 and the water-stopping weir 25 from tilting and to keep the joint in an upright position. The cross belt 30 is a non-elastic strip that runs continuously along the top of the water-stopping dam main body 23, and its lower edge is integrally fixed to the surface side of the top of the water-stopping dam main body 23 by sewing or adhesive means, etc.

[0031] The horizontal belt 30 has a plurality of suspension holes 31 formed at intervals. The reason why the suspending holes 31 are provided in the lateral belt 30 is to allow the suspending position of the lateral belt 30 to be freely selected in accordance with the position of the suspending chain 15.

[0032] <4.4> Materials of the water stop dam body, water stop cover and horizontal belt The waterstop weir body 23, waterstop cover 24 and cross belt 30 described above may be formed from the same material that is continuous with the sheet body 21, or may be formed by joining separate materials. To form the bridging belt 30 from the sheet body 21, for example, the sheet body 21 can be folded in half between the waterstop weir body 23 and the waterstop cover 24 to form the bridging belt 30.

[0033] <4.5>Joining means Joining means 26 is provided along the longitudinal direction of the sheet body 21 on the opposing surface (back surface) of the water cut-off weir body 23 and the water cut-off weir 25 of the upright covered water cut-off weir 22 . The joining means 26 is a member that joins the opposing surfaces of the water cut-off dam main body 23 and the water cut-off dam 25 in a separable manner. The joining means 26 may be a hook-and-loop fastener, a snap button, a magnet, an adhesive tape, or the like. In practice, a male-female hook-and-loop fastener is suitable as the joining means 26.

[0034] In this example, a form in which the joining means 26 is continuously installed on the opposing surfaces (back surfaces) of the opposing water cut-off dam main body 23 and water cut-off dam 25 will be described, but the joining means 26 can also be installed intermittently. In the case where the joining means 26 are installed continuously, in addition to the joining function, the hardness of the water cut-off dam main body 23 and the water cut-off dam 25 is increased, thereby improving the shape retention performance.

[0035] <5> hanger The hanger 40 is a connecting member that connects the suspending chain 15 and the horizontal belt 30, and can be made of, for example, one or more connecting bands such as insulation locks or connecting ropes. In the present invention, a cross belt 30 and a hanger 40 are combined to obtain a reaction force from the suspension chain 15, and the joint between the covered water cut-off weir 22 and the water cut-off weir 25 is forcibly lifted and held, thereby maintaining the independence of the joint. Therefore, there is no need to install additional hard reinforcing members on the water cut-off weir main body 23 and the water cut-off weir 25.

[0036] <6> Water stop dam The water cutoff dam 25 is a portion for forming a dam portion on the side of the seat body 21, and does not have a cover element. The water cut-off weir 25 has approximately the same height as the water cut-off weir main body 23 of the covered water cut-off weir 22. A joining means 26 is attached to the back surface of the water cut-off weir 25.

[0037] [Waterproof sheet installation method] Next, a method for laying the waterproof sheet 20 on the suspended scaffolding 10 will be described.

[0038] <1> Laying waterproof sheets As shown in FIG. 1, a plurality of waterproof sheets 20 are laid out on the upper surfaces of a plurality of 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. The waterproof sheet 20 may be laid so that the covered water cut-off weir 22 and the water cut-off weir 25 are adjacent to each other.

[0039] <2> Standing up of the joints of the waterproof sheet Next, the water cut-off weir main body 23 and the water cut-off weir 25 formed at the side end of each waterproof sheet 20 are bent and erected. The water cut-off weir body 23 and the water cut-off weir 25 are placed face to face with the suspension chain 15 sandwiched therebetween, and the joint is integrated through a joint means 26. At this time, as shown in FIG. 2, the water stop cover 24 is lifted up or folded back so that the water stop cover 24 is not interposed between the water stop weir main body 23 and the water stop weir 25. Each waterproof sheet 20 is divided into multiple sections by raising joints along the width or length direction on the upper surface of the scaffolding board 11.

[0040] In addition, the side edges of the waterproof sheet 20 where the waterproof weir main body 23 or the waterproof weir 25 is not installed can be blocked by laying a rag or by bending and raising the side end of the waterproof sheet 20, or other water-stopping measures can be taken.

[0041] <3> Covering the joint with a waterproof cover If the water cut-off weir main body 23 and the water cut-off weir 25 are simply joined together, there is a risk that wastewater will enter through the gap at the joint. Therefore, as shown in FIG. 3, the water cut-off cover 24 of the covered water cut-off weir 22 is placed over the water cut-off weir 25 side to seal the joint between the water cut-off weir main body 23 and the water cut-off weir 25, thereby stopping water from entering the joint.

[0042] When a suspension chain 15 is interposed between the joint between the water cut-off weir body 23 and the water cut-off weir 25 and an attempt is made to cover the water cut-off cover 24, the water cut-off cover 24 interferes with the suspension chain 15. Therefore, as shown in Figure 4, a slit 24a is formed in the water stop cover 24 in the transverse direction at the site, and the suspension chain 15 is accommodated in the slit 24a, thereby avoiding interference between the suspension chain 15 and the water stop cover 24. Since the waterproof cover 24 is a resin sheet, the slits 24a can be easily formed by cutting at any position to match the installation position of the hanging chain 15.

[0043] <4> Lifting the joints of the water cutoff dam If the covered water cut-off weir 22 and the water cut-off weir 25 are simply joined together, the joint is likely to collapse. Therefore, as shown in FIG. 5, a hanger 40 is connected between the suspending chain 15 and the horizontal belt 30 to lift the joint portion upward. In other words, hangers 40 are attached to the intersections of the suspending chains 15 and the horizontal belts 30, and multiple points of each horizontal belt 30 are lifted by each suspending chain 15 to prevent the joints from tipping over. Since the horizontal belt 30 is provided with a plurality of hanging holes 31, the horizontal belt 30 and the hanging chain 15 can be connected together without being affected by the installation position of the hanging chain 15.

[0044] [Watertightness and self-supporting properties of the joints of the waterproof sheet] The watertightness and self-supporting properties of the seams of the waterproof sheet 20 will be described in detail with reference to FIG.

[0045] <1> Watertightness of the joints of the watertight weir In the present invention, by simply covering the waterproof cover 24, it is possible to make the joint between the waterproof weir main body 23 and the waterproof weir 25, which is the seam of the waterproof sheet 20, waterproof over its entire length. Therefore, wastewater dripping onto the waterproof sheet 20 is blocked at the joint between the water cut-off weir main body 23 and the water cut-off weir 25. Furthermore, wastewater dripping onto the joint between the water cut-off weir main body 23 and the water cut-off weir 25 is guided along the water cut-off cover 24, preventing water from entering the joint. By appropriately collecting and recovering the wastewater that has accumulated on multiple waterproof sheets 20 using a pump, it is possible to reliably prevent the wastewater from leaking from the joints of the waterproof sheets 20.

[0046] Furthermore, if waterproof tape (not shown) is wrapped around the base of the slit 24a that accommodates the suspension chain 15 shown in Figure 4 to seal it, or if the area around the suspension chain 15 is sealed using existing waterproofing means, the waterproofing of the rising part of the suspension chain 15 can be further improved.

[0047] <2> Insustainability of the joints of the water cut-off dam The joint between the covered water cut-off weir 22 and the water cut-off weir 25, which is the seam of the waterproof sheet 20, stands up on the upper surface of the scaffolding board. Therefore, it is expected that the water collection hose may cross the joint of the waterproof sheet 20, or that a worker may accidentally step on the joint of the waterproof sheet 20.

[0048] In the present invention, the joints of the waterproof sheet 20 are lifted between adjacent hanging chains 15 via the hangers 40 and the horizontal belts 30, thereby preventing the joints from tipping over sideways. Therefore, even if a downward load (hanging load) is applied to the joint of the waterproof sheet 20 between adjacent hanging chains 15, the joint will not fall 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 cross belt 30, and is ultimately supported by the existing structure. When a load is applied to the joint of the waterproof sheet 20, some bending deformation occurs at the joint of the waterproof sheet 20, but the tensile strength of the cross belt 30 keeps the joint in an upright position. In this way, even if a large load is applied to the joint between the water-stopping weir main body 23 and the water-stopping weir 25, the joint of the water-shielding sheet 20 can be prevented from falling sideways, and good water-stopping function of the joint can be maintained. [Explanation of symbols]

[0049] 10. Hanging scaffolding 11. Scaffolding board 12... Hanging frame 15. Hanging chain 20. Water-resistant sheet 21 Seat body 22. Covered water cutoff dam 23. Water cut-off dam body 24...Waterproof cover 24a···Slit 25. Water stop dam 26...Joining means 30. Horizontal belt 31 Hanging hole 40····Hanger

Claims

1. A waterproof structure for a suspended scaffolding comprising a plurality of suspension chains hanging down from an existing structure and a plurality of scaffolding boards connected to the lower parts of the plurality of suspension chains and hung below the existing structure, and a plurality of waterproof sheets laid on the upper surfaces of the plurality of scaffolding boards to provide waterproofing, The waterproof sheet comprises a sheet body laid on the upper surface of the scaffolding board; at least one covered water cutoff dam formed by bending and raising one of the opposing side edges of the sheet body; and at least one water cutoff dam having no cover, formed by bending and raising the other opposing side edge portion of the sheet body, The covered water cut-off dam comprises a belt-shaped water cut-off dam body that can stand up to a predetermined height from a sheet body; a water stop cover formed to be continuous with the water stop dam body; a horizontal belt provided integrally along the top of the water cut-off weir body, A plurality of waterproof sheets are laid on the upper surface of the scaffolding board so that the covered water cut-off dam and the water cut-off dam are adjacent to each other, With a hanging chain interposed between the covered water cut-off dam and the water cut-off dam, the water cut-off dam bodies of the waterproof sheets that are raised from the scaffolding board and placed together are joined together using joining means, By covering the water stop cover on the water stop dam side, the joint formed by joining the water stop dam body and the water stop dam of each waterproof sheet that is erected from the scaffolding board and joined together is sealed with the water stop cover, The joint is lifted upward by connecting the intersection of the suspending chain and the horizontal belt so as to prevent the joint from tipping over. Water-resistant structure of suspended scaffolding.

2. 2. A waterproof structure for suspended scaffolding as described in claim 1, characterized in that the suspension chain is housed in a slit opened along the transverse direction of the covered water cut-off dam.

3. The watertight structure of the suspended scaffolding described in 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 of the suspension holes of the horizontal belt to connect the suspension chain and the horizontal belt.

4. 2. A waterproof structure for suspended scaffolding as described in claim 1, characterized in that the waterproof sheet is provided with a covered water stop dam and a water stop dam on a pair of opposing side edges of the sheet body, respectively.

5. A waterproof structure for suspended scaffolding as described in claim 1, characterized in that the waterproof sheet is provided with the same type of covered waterproof weir or the same type of waterproof weir on a pair of opposing side edges of the sheet body.

6. The waterproof structure for suspended scaffolding according to claim 1, characterized in that the joining means is any one of hook-and-loop fasteners, snap buttons, magnets, and adhesive tape.

7. The waterproof structure of a suspended scaffolding according to claim 3, characterized in that the hanger is one or more connecting bands or connecting ropes.

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