Floor panel for scaffold supported by suspended material

Abstract

To provide a floor panel for a scaffold which can be safely and easily replaced from inside the scaffold.SOLUTION: A floor panel 1 for scaffolding installed on a beam member 12 supported by a suspending member 11 suspended from a bridge girder on the lower surface of a bridge is provided with a housing 20 whose upper surface as a scaffolding is strong enough for a person to work, wherein the housing 20 is joined to the beam member 12 via a joining member 3 mounted on the beam member 12, and the joining member 3 is bolt-joined to the housing 20 by a fixing member 4 having either a nut or a bolt, and the fixing member 4 is slidable with respect to the joining member 3, so that the bolt-joining position between the housing 20 and the joining member 3 is adjustable from the upper surface 2a of the housing 20.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a scaffolding floor panel supported by hangers. [Background technology]

[0002] In recent years, in order to perform maintenance and inspection of bridge steel girders (bridge girders) and supporting members, permanent scaffolding (permanent scaffolding) has been installed by supporting floor panels on hanging materials attached to the steel girders. This type of scaffolding covers the entire underside of the bridge girders, which is effective in protecting the steel girders from airborne salt, significantly extends the interval between repainting, and is attracting attention because it can significantly reduce lifecycle costs. In addition, permanent scaffolding has an attractive appearance because it can hide drainage pipes and equipment piping, and it is also attracting attention as a fail-safe that can catch concrete pieces or parts in the unlikely event that they fall from the underside of the deck or bridge girders.

[0003] For example, Patent Document 1 discloses a bridge protection plate in which aluminum extrusions with flat upper and lower surfaces and hollow portions are connected by fixing members at connecting portions extending in the width direction, and the upper surfaces of the connected extrusions are formed to be flush with each other (see claim 1 in the claims of Patent Document 1, paragraphs

[0063] to

[0071] in the specification, Figures 1 to 4 in the drawings, etc.).

[0004] The bridge protection plate described in Patent Document 1 has the effect of protecting the underside of the bridge from corrosive components and also being usable as a walking path for inspection workers. However, permanent scaffolding such as the bridge protection plate described in Patent Document 1 covers the underside of the bridge, forming a flat surface (the underside of the back panel) (see Figure 8 of Patent Document 1, etc.), so if there is another road below the bridge, the back panel of the permanent scaffolding acts as a reflective plate that reflects noise, causing the reflected noise to propagate far away, which is a problem.

[0005] In order to solve such problems, Patent Document 2 discloses a sound-absorbing panel that is installed on the underside of an elevated road and that includes a sound-absorbing member and a casing that houses the sound-absorbing member, and in which the front panel member 28 is suspended and supported by the back panel member 30 by overlapping the side panels 34A, 34B, 48A, 48B of the front panel member 28 and the back panel member 30 so that the inner hook portion 52 and the outer hook portion 44 engage with each other (see claim 1 in the claims of Patent Document 2, paragraphs

[0063] to

[0071] of the specification, Figures 1 to 4 of the drawings, etc.).

[0006] Furthermore, Patent Document 3 discloses a sound-absorbing panel on the underside of a girder of an elevated road or the like, in which the hollow portion in the lower stage has a height and width that allows a nut into which a bolt for connecting to the top surface of the sound-absorbing panel can be inserted non-rotatably, and a bolt hole is provided in the bottom wall through which the shank of the connecting bolt passes, and the sound-absorbing panel and mounting rail are bolt-connected by the nut inserted into the hollow portion in the lower stage and the connecting bolt passed through the bolt hole (see claim 1 in the claims, paragraphs

[0033] to

[0040] in the specification, Figures 1 to 8 in the drawings, etc.).

[0007] The sound-absorbing panels described in Patent Document 2 and Patent Document 3 are said to be able to solve the problem of sound reflected from the underside of permanent scaffolding propagating as noise to residential areas along the railway line far from the road. However, bridge scaffolding and the sound-absorbing panels installed there are directly exposed to airborne salt, and are therefore thought to need to be replaced at regular intervals.

[0008] Generally, the sound-absorbing material used in sound-absorbing panels is a resin fiber such as polyester, and is not a permanent material. Furthermore, there is concern that the sound absorption rate of sound-absorbing materials will decrease if they are installed near roads for a long period of time due to chemical degradation of the material caused by exhaust gases and clogging of the perforations in the front panel. Furthermore, sound-absorbing panels can be damaged by natural disasters or accidents, so it is preferable for them to be designed so that they can be inspected and replaced.

[0009] Considering the need for periodic replacement at regular intervals, it is preferable that sound-absorbing materials installed within the floor panels of scaffolding can be replaced from within permanent scaffolding, eliminating the need to install new temporary scaffolding. However, the sound-absorbing panels described in Patent Documents 2 and 3 do not take into consideration the replacement of sound-absorbing panels inserted into floor panels from within the scaffolding. In other words, these prior art technologies require the installation of another scaffolding underneath the scaffolding to replace the panel, and the replacement work involves traffic restrictions, so workability and maintainability are not taken into consideration. Furthermore, the means and methods for replacing floor panels from within the scaffolding have not been fully considered, making it a difficult and dangerous task even if it were carried out.

[0010] In other words, since scaffolding floor panels have sound-absorbing materials and the like inserted therein, it is preferable to inspect and replace the floor panels from within the scaffolding, but the sound-absorbing panels described in Patent Documents 2 and 3 do not have any members that support the sound-absorbing panels from below, so when the mounting bolts to the beams are removed, there is a risk that the sound-absorbing panels will fall under the viaduct and hit a passing passenger car or train. For this reason, if floor panels are inspected and replaced from within the scaffolding, there is also the problem of the effort required to take measures to prevent them from falling, such as lifting each sound-absorbing panel from within the scaffolding. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-205961 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-69824 [Patent Document 3] Japanese Patent Application Laid-Open No. 2003-13413 Summary of the Invention [Problem to be solved by the invention]

[0012] The present invention has been devised in view of the above-mentioned problems, and its object is to provide a floor panel for a scaffold that can be safely and easily replaced from inside the scaffold. [Means for solving the problem]

[0013] The scaffolding floor panel of the first invention is a scaffolding floor panel that is installed on beams that are supported by hanging materials suspended from bridge girders on the underside of a bridge, and is provided with a housing that is strong enough for a person to work on the upper surface that serves as the scaffolding, the housing is joined to the beams via connecting members placed on the beams, the connecting members have fixing members that have either nuts or bolts, the connecting members are bolted to the housing using the fixing members, the fixing members are slidable relative to the connecting members, and the bolt connection position between the housing and the connecting members can be adjusted freely from the top surface of the housing.

[0014] The scaffolding floor panel of the second invention is characterized in that, in the first invention, the housing has a long hole or notch formed at the bolt connection position with the connecting member, and the long hole or notch has an elongated shape in a direction perpendicular to the sliding direction relative to the connecting member.

[0015] The scaffolding floor panel according to a third invention is the scaffolding floor panel according to the first invention, characterized in that the fixing members are nuts.

[0016] The scaffolding floor panel according to the fourth invention is characterized in that, in the third invention, the fixing member is a nut plate in which a flat plate is joined to a nut, and the nut plate is formed with a hook portion for hooking to slide.

[0017] The scaffolding floor panel according to the fifth invention is characterized in that, in the fourth invention, the housing is bolted to the joining member at multiple locations, and the nut-equipped plate has all of the nuts at multiple locations joined to the joining member of one of the housings.

[0018] The scaffolding floor panel of the sixth invention is characterized in that, in the first invention, the beam material is hung by joining an upper flange to the hanging material, the joining member is joined along the side of the upper flange rather than directly below the upper flange in a plan view, and the top surface of the floor panel and the upper flange are installed at approximately the same height.

[0019] The scaffolding floor panel according to a seventh invention is any of the first to sixth inventions, characterized in that a sound absorbing material is inserted into the lower surface of the housing. [Effects of the Invention]

[0020] According to the first to seventh inventions, because the structure is such that the floor panels are placed on and slid, they can be installed from within the scaffolding using an installation method that creates a scaffolding floor in one direction, making it possible to safely and easily replace floor panels from within the scaffolding. Also, according to the first to seventh inventions, special processing of the floor panels, such as adding rails, is not required, which reduces the manufacturing costs of the product.

[0021] In particular, according to the second invention, no special processing such as adding rails to the floor panel side is required, the position of the bolt joints of the floor panel can be easily adjusted, and there is no need to adjust existing hanging materials, beam members, etc. (large-scale work) when installing the floor panel.

[0022] In particular, according to the third invention, the fixing members are nuts, so unlike the bridge protection plate of Patent Document 1 described in the background art, the bolt protrusions do not get in the way when placing the panel, making it easier to place. Therefore, according to the third invention, the position can be adjusted by sliding the nuts, making the bolt joining work of the floor panels more efficient.

[0023] In particular, according to the fourth invention, a nut-attached plate is provided in which a flat plate is joined to a nut, and the nut-attached plate is formed with a hook portion for hooking onto for sliding, so that the nut can be aligned after the floor panel is placed on it, eliminating the need to accurately align the nut before placing it on the floor panel, thereby improving the construction speed of the bolt joining work for floor panels.

[0024] In particular, according to the fifth invention, the nut-equipped plate is used to join all nuts at multiple locations to the joining members of one of the housings of the floor panel, so that simply aligning one nut will align the joining positions of all nuts, further improving the construction speed of the bolt joining work for the floor panel.

[0025] In particular, according to the sixth invention, the upper surface of the floor panel and the upper flange are installed at approximately the same height, so there are no steps on the walking surface within the scaffolding, making it possible to create a scaffolding floor that is easy to walk on.

[0026] In particular, according to the seventh invention, the floor panel is an acoustic panel with sound-absorbing material inserted, so even if there is another road below the bridge, the back panel of the scaffolding acts as a reflective plate that reflects noise, eliminating the problem of reflected noise propagating far away. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a vertical cross-sectional view showing a scaffolding floor panel according to an embodiment of the present invention installed as permanent scaffolding. [Figure 2] FIG. 2 is a perspective view showing the permanent scaffolding as viewed from above. [Figure 3] FIG. 3 is a partially exploded perspective view illustrating the main configuration of the permanent scaffolding. [Figure 4] FIG. 4 is an exploded vertical cross-sectional view of the permanent scaffolding cut perpendicular to the bridge axis to explain the main components of the permanent scaffolding. [Figure 5]FIG. 5 is a perspective view showing the permanent scaffolding in which a floor panel for the scaffolding is installed on the lower flange of a beam. [Figure 6] FIG. 6 is a vertical cross-sectional view showing the scaffolding floor panel installed on the lower flange of a beam, cut perpendicular to the bridge axis. [Figure 7] FIG. 7 is an exploded perspective view showing the configuration of the floor panel body of the floor panel. [Figure 8] FIG. 8 is a perspective view showing a single joining member of the floor panel. [Figure 9] FIG. 9 is a perspective view showing the fixing member 4 alone. [Figure 10] FIG. 10 shows a state in which a fixing member 4 is attached to a joining member 3, where (a) is a perspective view, (b) is a plan view, and (c) is a side view seen from the longitudinal end of the joining member. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, a scaffolding floor panel according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0029] <Permanent scaffolding> First, a permanent scaffolding 10 on which a scaffolding floor panel 1 according to a first embodiment of the present invention (hereinafter simply referred to as the scaffolding floor panel 1) is installed will be briefly described using Figures 1 and 2. Figure 1 is a vertical cross-sectional view showing the scaffolding floor panel 1 according to this embodiment installed as permanent scaffolding 10, and Figure 2 is a perspective view showing the permanent scaffolding 10 viewed from above. Figure 3 is a partially exploded perspective view illustrating the main components of the permanent scaffolding 10, and Figure 4 is an exploded vertical cross-sectional view of the permanent scaffolding 10 cut perpendicular to the bridge axis to illustrate the main components of the permanent scaffolding 10. Figure 5 is a perspective view showing the permanent scaffolding 10 with the scaffolding floor panel 1 installed on beams 12, and Figure 6 is a vertical cross-sectional view of the scaffolding floor panel 1 installed on beams 12 cut perpendicular to the bridge axis.

[0030] As shown in Figures 1 and 2, the permanent scaffolding 10 on which the scaffolding floor panel 1 according to this embodiment is installed is installed around the bridge girder G1 of the bridge B1, which is an elevated bridge having a bridge girder G1 and a deck B2, and is a scaffolding for performing maintenance and inspection of the bridge girder G1, etc. Furthermore, the permanent scaffolding 10 refers to a scaffolding that is permanently installed for maintenance and inspection of the bridge girder G1 and supporting members of the bridge B1, rather than a temporary work scaffolding that is installed each time. Note that the symbol X indicates the bridge axis direction X along the bridge girder G1, the symbol Y indicates the direction perpendicular to the bridge axis Y, and the symbol Z indicates the up and down direction.

[0031] This permanent scaffolding 10 comprises a plurality of hanging members 11 suspended from a bridge girder G1 on the underside of the bridge B1, a plurality of beam members 12 supported by these hanging members 11 and having their longitudinal direction in the bridge axis direction X, and floor panels 1 installed across the beam members 12.

[0032] The illustrated beam 12 is a hat-shaped beam with bottom flanges 12a formed on the left and right sides. Of course, the beam according to the present invention may be any steel beam having a predetermined strength, such as an H-shaped beam or a pair of channel steel beams.

[0033] <Floor panel> As shown in Figures 3 to 6, this floor panel 1 is a panel based on a floor panel main body 2 having a housing 20 made of a highly corrosion-resistant material whose upper surface 2a forms the floor panel of the permanent scaffolding 10, and this floor panel main body 2 is bolted to a beam material 12 via connecting members 3.

[0034] Here, "highly corrosion-resistant materials" refers to highly corrosion-resistant materials that are resistant to rust, such as aluminum alloys, stainless steel, highly corrosion-resistant plated steel sheets, titanium alloys, or laminated steel sheets. Furthermore, "highly corrosion-resistant plated steel sheets" refers to steel sheets that have significantly higher corrosion resistance than ordinary steel sheets, such as steel sheets containing aluminum, magnesium, or trace amounts of silicon, or hot-dip zinc, aluminum, or magnesium alloy-plated steel sheets. Furthermore, "laminated steel sheets" refers to highly corrosion-resistant steel sheets whose surfaces are coated with a resin film, such as a polyester film.

[0035] The connecting member 3 is bolted to the housing 20 of the floor panel main body 2 with the fixing member 4, and the connecting member 3 is bolted to the lower flange 12a of the beam material 12. Furthermore, the floor panel main body 2 is a sound-absorbing panel with sound-absorbing material 21 inserted into the housing 20. Therefore, even if there is another road below the bridge as mentioned in the background art, the back panel of the scaffolding acts as a reflector that reflects noise, eliminating the problem of reflected noise propagating far away.

[0036] 1 and 2, the beam 12 is suspended by joining its upper flange 12b to the hanging member 11, and the joining member 3 is joined along the flange 12a at the side of the upper flange, not directly below the upper flange of the beam 12 in plan view, so that the upper surface 2a of the floor panel main body 2 and the upper flange 12b of the beam 12 are installed at approximately the same height. This eliminates steps on the walking surface within the permanent scaffolding 10, making it possible to create a scaffolding floor that is easy to walk on.

[0037] (Floor panel body) Next, the floor panel main body 2 will be described using Figure 7. Figure 7 is an exploded perspective view showing the configuration of the floor panel main body 2. As shown in Figure 7, the housing 20 of the floor panel main body 2 is made up of a back panel 22 which serves as the walking board for the permanent scaffolding 10, a top panel 23 on which sound-absorbing material 21 is placed to prevent it from falling, and a pair of end panels 24, 24 which close the end faces.

[0038] (Back panel: chassis) The back panel 22 is formed by bending a metal plate and is made of a plate material of a predetermined thickness that is strong enough for people to walk and work on, and as shown in Fig. 7, near the longitudinal end portion, two pairs of elongated notches 22a are formed in a total of four locations for inserting bolts. Note that these notches 22a are formed so that the fixing position of the bolts can be adjusted in direction B, which is perpendicular to the sliding direction A of fixing members 4 (described below) that is the longitudinal direction of the beam 12. However, the notches 22a may also be elongated holes 22a, as shown in Figs. 3 and 5. This is because either way makes it possible to adjust the position of the bolt joint position of the housing 20 and does not require special processing such as adding rails to the floor panel side.

[0039] Furthermore, by providing notches 22a that allow the bolt fixing position to be adjusted in direction B perpendicular to sliding direction A, special processing such as adding a rail to the floor panel 1 side is not required, and it becomes easy to adjust the position of the bolt joint of the floor panel 1. Therefore, there is no need to make major adjustments to the existing hanging materials 11 and beam materials 12 in advance before installing the floor panel 1.

[0040] 7, the underside of the back panel 22 is reinforced by inserting a reinforcing member 25 bent into an inverted hat-shaped cross section. This allows a thin steel plate to achieve the strength required for people to walk on. The bottom surface of the reinforcing member 25 near both longitudinal ends is formed with elongated holes 25a that communicate with the aforementioned notches 22a and allow the bolt fixing positions to be adjusted.

[0041] (Surface: Housing) The front panel 23 is a box-shaped member that is formed by bending a metal plate and has an open top, and is the portion on which the sound-absorbing material 21 is placed, as shown in Fig. 7. The bottom surface of the front panel 23, which faces the noise source, is provided with a large number of through-holes 23a, 23a for transmitting noise (see also Fig. 1).

[0042] Also formed is an elongated hole 23b that communicates with the aforementioned notch 22a and allows the fixing position of the bolt to be adjusted.

[0043] (End plate: housing) 7, two notches 24a are formed in each of the end plates 24 for inserting the reinforcing members 25. Further, long holes 24b are formed in the lower surfaces of the end plates 24 at positions corresponding to the notches 22a in the back plate 22.

[0044] (sound absorbing material) The sound-absorbing material 21 according to this embodiment is made of polyester fiber with a water-repellent and flame-retardant surface. Of course, the sound-absorbing material according to the present invention is not limited to polyester fiber, and other sound-absorbing materials such as fiberglass or foamed resins such as polyurethane foam, or sound-absorbing mechanisms using resonance mechanisms or membrane vibrations, or perforated sound-absorbing panels can also be used.

[0045] (jointing material) Next, the joining member 3 and fixing member 4 will be described in more detail with reference to Figures 8 to 10. Figure 8 is a perspective view showing the joining member 3 alone, and Figure 9 is a perspective view showing the fixing member 4 alone. Figure 10(a) is a diagram showing the fixing member 4 attached to the joining member 3, where (a) is a perspective view, (b) is a plan view, and (c) is a side view seen from the longitudinal end of the joining member.

[0046] As shown in FIG. 8, the joining member 3 is a steel material having a generally U-shaped cross section, and has a surrounding portion 31 that surrounds the fixing member 4 (described later) so that the fixing member 4 can slide freely along the sliding direction A, and a lower flange 32.

[0047] Furthermore, a long slot 33 is formed on the upper surface 3a of this surrounding portion 31 along the sliding direction A for sliding the fixing member 4 to adjust its position, and a circular bolt hole 34 is formed on the lower flange 32 for bolting the connecting member 3 to the beam 12. The direction indicated by the symbol B is the direction B perpendicular to the sliding direction A of the fixing member 4 along the direction Y perpendicular to the bridge axis described above.

[0048] Furthermore, as described above, the housing 20 has a long hole formed at the bolt joint position with the joining member 3, and the long hole is long in a direction perpendicular to the sliding direction of the fixing member relative to the joining member.

[0049] (fixing member) As shown in Figure 8, the fixing member 4 is made of a nut plate 40 having a plurality of nut portions 42 formed by nuts being welded to a flat steel strip plate 41. Bolt holes 43 are formed in the nut plate 40, and bolts 44 (see Figure 4) can be screwed into them. However, the fixing member according to the present invention may be installed with the bolts 44 and nut portions 42 upside down. However, as in the illustrated embodiment, by configuring the nut portions 42 to slide freely within the surrounding portion 31, this is preferable because the bolt protrusions do not get in the way when placing the floor panel 1 on the lower flange 12a of the beam 12, making it easier to place the floor panel 1 on the lower flange 12a of the beam 12.

[0050] Furthermore, the nut-equipped plate 40, which is the fixing member 4 in this embodiment, has all of the nuts attached to one of the housings 20 of the floor panel 1 at multiple locations, so that simply aligning one nut aligns the joining positions of all of the nuts, significantly improving the construction speed of the bolt joining work for the floor panel 1.

[0051] 8 to 10, the steel strip 41 is provided with a plurality of through holes 45 into which the sharp tip of a tool such as a ratchet is inserted to slide the nut plate 40 and pull the bolt holes 43 to a predetermined position. However, the through holes 45 are not limited to through holes, and may be any hooking portion, such as a recess or a protrusion, that can hook the sharp tip of a tool such as a ratchet.

[0052] According to the scaffolding floor panel 1 of this embodiment described above, after the floor panel 1 is placed, the nut-equipped plate 40 inside the surrounding portion 31 of the connecting member 3 is slid to adjust the position and then bolted, so the floor panel 1 can be installed from inside the scaffolding using an installation method that creates a scaffolding floor in one direction, making it safe and easy to replace the floor panel 1 from inside the scaffolding. Furthermore, with the scaffolding floor panel 1, no special processing is required on the floor panel, such as adding rails, which reduces the manufacturing costs of the product.

[0053] Furthermore, a notch 22a is formed in the housing 20 of the floor panel 1 at the bolt joint position with the connecting member 3, and this notch 22a has a shape that is long in a direction B perpendicular to the sliding direction A of the nut plate 40, which is the fixing member 4, relative to the connecting member 3. Therefore, the position of the one-bolt joint of the floor panel 1 can be easily adjusted, and no large-scale adjustment work is required for existing hanging materials, beam members, etc. when installing the floor panel 1.

[0054] In addition, the nut-equipped plate 40 of the fixing member 4 has all nuts at multiple locations for the connecting member 3 of the housing 20 of one floor panel 1 welded to the strip steel plate 41 and integrated, so simply aligning one nut with the bolt connecting position will align the connecting positions of all the nuts, significantly improving the construction speed of the bolt connecting work for the floor panel 1.

[0055] Furthermore, in the permanent scaffolding 10, the beam 12 is suspended by joining its upper flange 12b to the hanging member 11, and the joining member 3 is joined along the flange 12a at the side of the upper flange 12b, rather than directly below the upper flange of the beam 12 in a plan view, so that the upper surface 2a of the floor panel main body 2 and the upper flange 12b of the beam 12 are installed at approximately the same height. As a result, there are no steps on the walking surface within the permanent scaffolding 10, making it possible to create a scaffolding floor that is easy to walk on.

[0056] The scaffolding floor panel 1 according to the embodiment of the present invention has been described in detail above, but the above-described and illustrated embodiments are merely specific embodiments for carrying out the present invention. Therefore, the technical scope of the present invention should not be interpreted as being limited by these embodiments. In particular, hat-shaped steel beams have been described as examples, but it goes without saying that other shaped steel beams, such as angle steel beams, that are strong enough to support the scaffolding, may also be used. [Explanation of symbols]

[0057] 1: (Scaffolding) Floor panel 10: Permanent scaffolding 11: Hanging material 12: Beam material 12a: Lower flange 12b: Upper flange 2: Floor panel body 2a:Top surface 20: Cabinet 21: Sound absorbing material 22: Rear panel (chassis) 22a: Notch (long hole) 23: Surface panel (casing) 23a: Through hole 23b: Long hole 24: End plate (housing) 24a: Missing 24b: Long hole 25: Reinforcement material 25a: long hole 3: Joint material 3a:Top surface 31: Surrounding area 32: Lower flange 33: Long hole 34: Bolt hole 40: Plate with nuts 41: Steel strip 42: Nut part 43: Bolt hole 44: Bolt 45:Through hole B1: Bridge B2: Floor slab G1: Bridge girder

Claims

1. A scaffolding floor panel installed on a beam supported by a hanging member suspended from a bridge girder on the underside of a bridge, The scaffolding has a housing strong enough for people to work on its top surface, the housing is joined to the beam member via a joining member placed on the beam member, the joining member has a fixing member having either a nut or a bolt, and the joining member is bolted to the housing using the fixing member; The fixing member is slidable relative to the joining member, and the bolt joining position between the housing and the joining member is adjustable from the top surface of the housing. A scaffolding floor panel characterized by:

2. The housing has a slot or a notch formed at a bolt joint position with the joining member, and the slot or the notch has a shape that is long in a direction perpendicular to the sliding direction with respect to the joining member. The scaffolding floor panel according to claim 1,

3. The fixing member is a nut. The scaffolding floor panel according to claim 1,

4. The fixing member is a nut plate in which a flat plate is joined to a nut, and the nut plate is formed with a hook portion for hooking to slide. The scaffolding floor panel according to claim 3,

5. the housing is joined to the joining member by bolts at a plurality of locations, The nut-equipped plate has all of the nuts at the plurality of locations connected to the connecting members of one of the housings. The scaffolding floor panel according to claim 4,

6. The beam member is suspended by joining an upper flange to the suspension member, The joining member is joined along the side of the upper flange, not directly below the upper flange in a plan view, and the upper surface of the floor panel and the upper flange are installed at approximately the same height. The scaffolding floor panel according to claim 1,

7. A sound-absorbing material is inserted on the underside of the housing. The scaffolding floor panel according to any one of claims 1 to 6, characterized in that:

Images