JP2020133301A - Inspection passage - Google Patents

Abstract

To provide an inspection passage that can provide a required length baseboards for preventing an article from falling down to required positions, even when cannot attaching support pillars and handrails due to the state of an installation site of a bridge or the like and when a bridge truss or the like crosses just above the floor surface.SOLUTION: An inspection passage 1 comprises: a pair of left and right beams 2; a plurality of crosspieces 3 coupling opposed surfaces of the left and right beams 2 to each other; a plurality of floor panels 4 parallelly built before and behind on the left and right beams 2 to constitute a floor surface 40; any one of at least left and right plural support pillars 5 vertically upward mounted on at least any one beam 2 among the left and right beams 2; any one of at least left and right handrails 6A, 6B horizontally bridged and fixed between the plural support pillars 5; and left and right baseboards 7 erected and disposed along left and right each marginal part of the floor surface 40. The baseboards 7 are mounted on the upper surface or outside surface of the beams 2 or the left and right each marginal part of the upper surface of the floor panels 4.SELECTED DRAWING: Figure 3

Description

The present invention relates to an inspection path (inspection scaffolding) that is installed in a structure such as a bridge and is used when performing work such as inspection and repair of the structure.

For example, for bridges, regular regular inspections can be used to detect and repair damage caused by aging, etc., and in the event of a disaster such as an earthquake, abnormalities such as damage to bridges can be inspected to confirm safety. In order to do so, inspection paths are installed below the bridge girders and around the piers.
The main structural material of the conventional inspection path is made of steel, but the weight is large, the workability is inferior, and there is a problem in corrosion resistance.
Therefore, as a means for solving such a problem, in the following Patent Document 1, a pair of left and right girders (main beams) and a plurality of crosspieces (secondary beams) connecting the facing surfaces of the left and right girders are provided. , Multiple floor boards (floor materials) that are erected in parallel on the left and right girders to form the floor surface, and multiple left and right columns (handrail columns) that are installed vertically upward on each of the left and right girders. It is equipped with left and right handrails that are horizontally handed over to each of the left and right columns, and a drawstring (toe plate) that is attached to each of the left and right columns so that it rises from each of the left and right edges of the floor. , An inspection path for bridges is disclosed in which all of these structural materials are made of aluminum alloy.

Japanese Unexamined Patent Publication No. 2013-231305

By the way, in the inspection road for bridges, either the left or right side may be installed close to or close to the wall surface of the bridge, and due to space limitations, there may be cases where the columns and handrails on the wall surface side cannot be attached. is there. In addition, a truss or the like of a bridge may cross just above the floor surface of the inspection road, and in that case, a skirting board cannot be installed at the crossing point of the truss or the like.
However, in the case of the inspection path for bridges described in Patent Document 1 described above, since the skirting board is attached to the support column, if the support column cannot be attached, the skirting board cannot be attached either, and the floor surface of the inspection path There was a risk that the article would fall from. In addition, in the above inspection path, the installation location and length of the skirting board are determined by the installation location and pitch of the columns, so in order to let the truss etc. that cross just above the floor surface escape, only the skirting board should be installed at the crossing part. It was difficult to configure it so that it would not be installed.

The present invention has been made in view of the above problems, and when the columns and handrails cannot be attached due to the situation of the installation location of the bridge or the like, or when the truss of the bridge or the like crosses immediately above the floor surface. Even so, it is an object of the present invention to provide an inspection path in which a skirting board for preventing an article from falling can be provided at a necessary place and for a necessary length.

The present invention comprises the following aspects in order to achieve the above object.

1) A pair of left and right digits and
Multiple crosspieces connecting the facing surfaces of the left and right girders,
Multiple floorboards that are erected in parallel on the left and right girders to form the floor surface,
With at least one of the left and right girders attached vertically upward to at least one of the left and right girders,
At least one of the left and right handrails that are horizontally handed over to the plurality of columns,
It is equipped with left and right skirting boards that are provided in a rising shape along the left and right edges of the floor.
An inspection path in which the left and right skirting boards are attached to at least one of the upper and outer surfaces of the left and right girders and the left and right ends of the upper surface of the floor board.

2) Each of the left and right girders is made of a hollow metal profile, and a flat floor plate mounting portion for mounting the left and right ends of the floor plate is formed on the inner portion of the upper wall thereof. On the outer side of the upper wall, a skirting board mounting portion is formed which protrudes upward by a predetermined height in a ridge shape with respect to the floor plate mounting portion.
Each of the left and right skirting boards includes a vertical wall and a horizontal lower wall that extends inward in the left-right direction from the lower end edge of the vertical wall and is attached to the upper surface of the skirting board attachment portion of each of the left and right girders. Inspection path.

3) The baseboard mounting portion protrudes upward in a ridge shape by a height approximately equal to the thickness of the floor plate with respect to the floor plate mounting portion.
The horizontal lower wall of each of the left and right skirting boards has a width such that the tip side portion thereof overlaps the upper surface of the floor board, and is the inspection path of 2) above.

4) An internal expansion groove opened on the upper surface is formed in the baseboard mounting part.
Multiple bolts that are inserted from above or below into multiple bolt insertion holes drilled in the horizontal lower wall of the skirting board and whose head is located on the upper surface side of the horizontal lower wall or in the internal expansion groove, and internal expansion The inspection path of 2) or 3) above, wherein the skirting board is screwed to the skirting board mounting portion by a plurality of nuts that are arranged in the groove or on the upper surface side of the horizontal lower wall and screwed into the bolt.

5) A fitting concave groove consisting of an internal expansion groove opened on the upper surface is formed in the baseboard mounting portion, and the fitting concave groove is fitted on the lower surface of the horizontal lower wall of the baseboard from either the front or the back. A fitting ridge having a shape that allows it to be inserted is formed, and a skirting board is attached to the skirting board mounting portion by fitting the fitting concave groove and the fitting ridge, 2) or 3) above. Inspection path.

6) Each of the left and right girders is made of a hollow metal profile, and a flat floor plate mounting portion for mounting the left and right ends of the floor plate is formed on the inner portion of the upper wall thereof. On the outer side of the upper wall, there is a baseboard mounting part that protrudes upward by a predetermined height in a ridge shape with respect to the floor board mounting part and the outer surface is flush with the outer surface of the outer wall of each of the left and right girders. Have and
Each of the left and right skirting boards has a vertical plate shape, and the lower part thereof is attached to the outer surface of the skirting board mounting portion, which is the inspection path of 1) above.

7) An internal expansion groove opened on the outer surface is formed in the baseboard mounting portion.
Multiple bolts that are inserted from the outside or inside in the left-right direction into the multiple bolt insertion holes drilled in the lower part of the skirting board, and the bolt head is arranged on the outer surface side of the skirting board or in the internal expansion groove, and internal expansion The inspection path of 6) above, in which the skirting board is screwed to the skirting board mounting portion by a plurality of nuts arranged in the groove or on the outer surface side of the skirting board and screwed into the bolt.

According to the inspection path of 1) above, the left and right skirting boards are attached to at least one of the upper and outer surfaces of the left and right girders and the left and right ends of the upper surface of the floor board. Baseboards can be installed with or without handrails.
Further, according to the inspection path of 1) above, since the skirting board is attached to the girder and / or the floor plate existing over the entire length of the inspection path, the attachment position and length of the skirting board can be arbitrarily adjusted. Therefore, even when a truss of a bridge or the like crosses immediately above the floor surface, for example, the skirting board can be configured not to be installed only at the crossing point of the truss or the like.

According to the inspection path in 2) above, the floor plate mounting portion is formed on the inner side of the upper wall of the girder made of hollow metal profile, and the baseboard mounting portion is formed on the outer side portion. The work and the installation work of the baseboard can be performed easily and efficiently.
Further, according to the inspection path of 2) above, the skirting board has an L-shaped cross section having a vertical wall and a horizontal lower wall, so that the article can be reliably prevented from falling from the floor surface of the inspection path. can do.

According to the inspection path of 3) above, the tip side portion of the horizontal lower wall of the skirting board is overlapped on the upper surface of the floor plate, so that the tip side portion plays a role of pressing the floor plate from above, and the tip end side portion This prevents articles, dust, and the like from entering the gap between the end of the floor plate and the baseboard mounting portion of the girder, and facilitates maintenance.

According to the inspection path in 4) above, a plurality of sets of bolts can be used by utilizing the internal expansion groove formed in the baseboard mounting portion on the upper wall of the girder and the bolt insertion hole formed in the horizontal lower wall of the baseboard. Since the skirting board can be screwed to the skirting board mounting portion by the nut, the skirting board mounting work can be performed easily and quickly, and the skirting board mounting position can be easily adjusted.

According to the inspection path of 5) above, the width is formed by fitting the fitting concave groove formed in the skirting board mounting portion on the upper wall of the girder and the fitting ridge formed on the horizontal lower wall of the skirting board. Since the wood is attached to the baseboard mounting portion, the baseboard mounting work can be performed more easily and quickly, and the baseboard mounting position can be easily adjusted.

According to the inspection path of 6) above, a floor plate mounting portion for mounting the end portion of the floor plate is formed on the inner portion of the upper wall of the girder made of a hollow metal profile, and a vertical plate is formed on the outer portion of the floor plate mounting portion. Since the skirting board mounting portion for mounting the lower part of the skirting board is formed, the floor board erection work and the skirting board mounting work can be easily and efficiently performed.

According to the inspection path of 7) above, the internal expansion groove formed so as to open on the outer surface of the skirting board mounting portion on the upper wall of the girder and the bolt insertion hole formed in the lower part of the skirting board are used. Since the baseboard can be screwed to the baseboard mounting part with multiple sets of bolts and nuts, the baseboard mounting work can be performed easily and quickly, and the baseboard mounting position can be easily adjusted. Is.
Further, according to the inspection path of 7) above, it is also possible to make a bolt insertion hole at the bottom of each column and screw the column together with the baseboard to the outer surface of the girder with the bolts and nuts. As a result, the efficiency of the inspection path assembly work can be improved, and the cost can be reduced by standardizing the mounting parts.

It is a perspective view which looked at the inspection path which concerns on 1st Embodiment of this invention from above. It is a perspective view which looked at the inspection path from below. It is a vertical sectional view along the line III-III of FIG. FIG. 3 is an enlarged vertical cross-sectional view showing the lower left portion of FIG. It is a bottom view which shows the front end part of the inspection path. It is a perspective view seen from above which shows the front end part of the inspection path in a state where a part of a floor board is cut out. It is a perspective view which showed the front end part of the inspection path with a part of the floor material removed, and was seen from above. It is a perspective view seen from above which shows the girder of the inspection path and a part of a baseboard separately. The floor plates of the inspection road are shown, in which (a) is a side view of the floor plates connected to each other, and (b) is a side view of the floor plates separated from each other. It shows the inspection path which concerns on 2nd Embodiment of this invention, and is the vertical sectional view corresponding to FIG. It is a perspective view seen from above which shows the girder of the inspection path and a part of a baseboard separately. It shows the inspection path which concerns on 3rd Embodiment of this invention, and is the vertical sectional view corresponding to FIG. It is a perspective view seen from above which shows the girder of the inspection path and a part of a baseboard separately. A modified example of the floor plate used for the inspection path according to the first to third embodiments according to the present invention is shown. FIG. It is a side view of the separated state.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 14.
In the following description, the right side of FIG. 5 is referred to as "front", the left side is referred to as "rear", and "left and right" means the left and right when viewed from the front (each left and right in FIGS. 3, 4, 10 and 12). Shall be. In addition, "inside and outside" is defined as "inside" for the side closer to the virtual line and "outside" for the side far from the virtual line, based on the virtual line passing through the center of the left and right width of the inspection path.

[First Embodiment]
1 to 9 show an inspection path according to the first embodiment of the present invention.
The inspection path (1) shown in the figure consists of a pair of left and right girders (2), a plurality of crosspieces (3) connecting the facing surfaces of the left and right girders (2), and front and rear of the left and right girders (2). A plurality of floor boards (4) erected in parallel to form a floor surface (40), a plurality of left and right columns (5) attached vertically upward to the left and right girders (2), and each of the left and right columns. Left and right handrails (6A) (6B) that are horizontally passed to multiple columns (5), and left and right skirting boards that are provided so as to rise along the left and right edges of the floor (40). It has (7) and. The left and right skirting boards (7) are attached to the upper surfaces of the left and right girders (2).
This inspection path (1) is erected on a support beam (B) made of a plurality of shaped steels or the like provided at predetermined intervals in the front-rear direction so as to project outward from the wall surface of the bridge in the left-right direction. ..
The above structural materials (2) (3) (4) (5) (6A) (6B) (7) constituting the inspection path (1) are formed of a metal profile, more preferably lightweight. It is formed of an extruded aluminum alloy profile that has excellent workability and corrosion resistance.

As detailed in FIGS. 4 and 6-8, each of the left and right girders (2) is a hollow metal having an upper wall (21), an outer wall (22), an inner wall (23) and a lower wall (24). It is made of shaped material and extends in the front-back direction.
The upper wall (21) is formed with a flat floor plate mounting portion (21a) on the inner side thereof, and a predetermined height with respect to the floor plate mounting portion (21a) on the outer side thereof, more specifically. A thick skirting board attachment portion (21b) is formed, which protrudes upward in a ridge shape by a height substantially equal to the thickness of the floor plate (4). The left and right ends of the floor plate (4) are mounted on the floor plate mounting portion (21a). The baseboard mounting portion (21b) is formed with an internal expansion groove (211) opened on the upper surface. The internal expansion groove (211) has an upper portion wide enough to accommodate the nut (9), and its lower portion and opening are narrower than the upper width and slightly smaller than the shaft portion of the bolt (8). It has a large width. The outer surface of the skirting board mounting portion (21b) is a vertical surface flush with the outer surface of the outer wall (22). Further, the baseboard mounting portion (21b) is formed with an internal expansion groove (212) opened on the outer surface.
The lower part of the outer side wall (22) is thickened, and an internal expansion groove (221) opened on the outer surface is formed in the lower part.
The upper and lower portions of the inner side wall (23) are thickened, and internal expansion grooves (231) (232) opened on the inner side surface are formed in the upper and lower portions.
Leg members (10) that are placed and fixed on the upper surface of the support beam (B) are attached to the front and rear ends of the lower wall (24). The leg member (10) has a horizontal wall (101) that is overlapped with the lower wall (24) of the girder (2) and an inner side wall of the girder (2) that extends upward from the center of the horizontal width (101). It is a substantially inverted T-shaped cross section consisting of a rising wall (102) overlaid on the inner surface of (24). Although detailed illustration is omitted, this leg member (2) is a bolt (11) in which a bolt head (11a) is housed in an internal expansion groove (232) under the inner wall surface (24) of the girder (2). It is screwed to the girder (2) by inserting it into a bolt insertion hole (not shown) formed in the rising wall (102) and screwing it into the nut (12).
Within each girder (2), a horizontal connecting wall (25) is formed so as to connect the upper edges of the thick lower part of the outer wall (22) and the inner side wall (23).

The crosspiece (3) has a U-shaped cross section consisting of a horizontal upper wall (31) and a lower wall (32), and a vertical wall (33) connecting one edges of the upper and lower walls (31) (32). The left and right girders (2) are connected to each other at multiple points at equal intervals in the front-rear direction. As shown in FIGS. 1 and 2, in this embodiment, the crosspieces (3) are provided at four locations corresponding to the mounting positions of the left and right columns (5).
The left and right ends of the crosspiece (3) and the left and right girders (2) are connected using an L-shaped bracket (13) having two vertical walls (131) and (132) that are perpendicular to each other when viewed from a plane. Has been done. That is, one vertical wall (131) of the L-shaped bracket (13) is overlapped on the surface opposite to the upper and lower walls (31) (32) at the left and right ends of the vertical wall (33) of the crosspiece (3). , A nut (15) is screwed into the tip of a bolt (14) inserted into a bolt insertion hole (not shown) drilled in both vertical walls (131) (33), and an inner wall surface (23) of the girder (2) is fitted. ) Insert the bolt (11) containing the bolt head (11a) in the internal expansion groove (231) at the top, and insert the bolt insertion hole (132) at the top of the other vertical wall (132) of the L-shaped bracket (13). A nut (12) is screwed into the tip of the bolt (11) by inserting it through an omission (not shown), and further, as will be described later, the maximum of one vertical wall (51) of each column (5) having an L-shaped cross section. Bolt insertion holes (not shown) drilled in the lower part, outer wall (22) lower part and inner side wall (23) of the girder (2) at a plurality of positions in the length direction corresponding to the bolt insertion holes of each column (5). Bolt insertion holes (not shown) drilled in the bottom wall of the lower internal expansion grooves (221) (232), and bolt insertion holes drilled in the lower part of the other vertical wall (132) of the L-shaped bracket (13). By inserting a long bolt (11X) into (not shown) from the outside and screwing a nut (12) into the tip, the left and right ends of the crosspiece (3) and the left and right girders (2) can be connected. It is screwed and connected via an L-shaped bracket (13). The lower long bolt (11X) may be inserted into each of the above bolt insertion holes from the inside, contrary to the drawing.

The floor plate (4) is made of a metal profile extending in the left-right direction, and as shown in detail in FIG. 7, extends downward from the top horizontal wall (41) and the front and rear edges of the top horizontal wall (41). It is provided with two front and rear end hanging walls (42) and an intermediate hanging wall (43) extending downward from the front and rear width intermediate position of the top horizontal wall (41).
On the upper surface of the top horizontal wall (41), a plurality of non-slip ridges (411) extending in the left-right direction are formed at equal intervals in the front-rear direction. A drain hole (412) is drilled in the top horizontal wall (41) of some floorboards (4) (see FIG. 5).
An internal expansion groove (421) that opens outward in the front-rear direction is formed on the front and rear end hanging walls (42).
The intermediate hanging wall (43) has the same height as the end hanging wall (42), and a ground contact portion (431) is formed at the lower end portion thereof so as to project shortly on both front and rear sides. The number of intermediate hanging walls is not limited to two as shown in the drawing, and one or three or more may be provided, and may be omitted when the width of the floor board is narrow.
The edges of the floor plates (4) adjacent to each other in the front and rear are connected by a connecting member (16). More specifically, the connecting member (16) is made of a hollow shape member extending in the left-right direction in which the outer contour of the cross section is formed into a vertically long substantially H shape, and the connecting member (16) has two. Both floorboards (4) are connected by being fitted into a substantially H-shaped hole (420) formed by an internal expansion groove (421) of an end hanging wall (42) adjacent to the front and rear of the floorboard (4). It has become so.
Then, in a state where the required plurality of floor boards (4) are connected to each other by the connecting member (16), the left and right ends of the floor boards (4) are placed on the floor board mounting portion (21) of the upper wall (21) of the left and right girders (2). By placing it on 21a), it is erected on both girders (2) in parallel in the front-rear direction, forming a floor surface (40) extending in the front-rear direction.
The plurality of floor plates (4) connected and integrated by the connecting member (16) are connected to the left and right girders (2) via the L-shaped bracket (17) at a plurality of locations in the length direction of the floor surface (40). It is connected. More specifically, bolt insertion holes (not shown) penetrate through the end hanging walls (42) of the two floor plates (4) adjacent to each other in the front-rear direction and the left and right ends of the connecting member (16) connecting them. The tip of the bolt (14) inserted into these bolt insertion holes and the bolt insertion holes (not shown) drilled in one of the vertical walls (171) of the L-shaped bracket (17) is nuts. Along with screwing into (15), the bolt head (11a) is housed in the internal expansion groove (231) above the inner wall surface (23) in each of the left and right girders (2), and the other vertical wall of the L-shaped bracket (17). By screwing the tip of the bolt (14) inserted into the bolt insertion hole (not shown) drilled in (172) into the nut (15), the floor plate (4) becomes an L-shaped bracket on the left and right girders (2). It is screwed and integrated via (17).

Each strut (5) is made of an L-shaped metal profile having two vertical walls (51) (52) that are perpendicular to each other when viewed from a plane.
The columns (5) are bolted at a plurality of locations (4 locations in the figure) where the lower ends of one of these vertical walls (51) are spaced apart in the front-rear direction on the outer surface of each of the left and right girders (2). 11) It is screwed with (11X) and nut (12).
Here, one vertical wall (51) of the column (5) is formed in an internal expansion groove (212) opened on the outer surface of the skirting rod mounting portion (2b) of the upper wall (21) in each of the left and right girders (2). A nut (12) is attached to the tip of the bolt (11) in which the bolt head (11a) is accommodated and inserted into a bolt insertion hole (not shown) formed slightly above the lower end of the vertical wall (51). Along with screw fitting, bolt insertion holes (not shown) drilled at the bottom of the vertical wall (51), and girders (not shown) at multiple positions in the length direction corresponding to the bottom bolt insertion holes of each column (5). 2) Bolt insertion holes (not shown) drilled in the bottom wall of the inner expansion groove (221) (232) below the outer wall (22) and lower inner wall (23), and the other of the L-shaped bracket (13). By inserting a long bolt (11X) from the outside into the bolt insertion hole (not shown) drilled in the lower part of the vertical wall (132) of the above and screwing it into the nut (12) at the tip, left and right. It is screwed to each girder (2).
The other vertical wall (52) of each strut (5) overhangs outward from one side edge of one vertical wall (52).

The handrail consists of an upper handrail (6A) that is attached to the upper ends of each of the left and right columns (5) and an intermediate handrail (6B) that is attached to the middle height of the columns (5). Have.
The upper handrail (6A) is made of a hollow metal material having a substantially D-shaped cross section and an outer portion having a vertical shape and a remaining portion having an arc shape, and extends in the front-rear direction. An internal expansion groove (61) that opens outward is formed on the outer side of the upper handrail (6A). By inserting the bolt whose head is housed in the internal expansion groove (61) into the bolt insertion hole drilled in the upper end of one of the vertical walls (51) of each column (5) and screwing it into the nut. , The upper handrail (6A) is screwed to the upper end of each column (5).
The intermediate handrail (6B) is made of a metal profile having a substantially D-shaped cross section in which the outer side portion of the surface is vertical and the remaining surface portion is arcuate, and extends in the front-rear direction. The outer diameter of the intermediate handrail (6A) is slightly smaller than the outer diameter of the upper handrail (6A). An internal expansion groove (62) that opens outward is formed on the outer side of the intermediate handrail (6B). A bolt whose head is housed in this internal expansion groove (62) is inserted into a bolt insertion hole drilled in the height intermediate portion of one vertical wall (51) of each support column (5) and screwed into a nut. As a result, the intermediate handrail (6B) is screwed to the height intermediate portion of each column (5). In the inspection path (1) shown in the figure, two intermediate handrails (6B) are provided on each side, but the number of intermediate handrails may be appropriately set according to the height of the columns and the like, and one on each side. It may be a book or three or more, and in some cases, the intermediate handrail can be omitted.

Each skirting board (7) on the left and right consists of a metal profile with an L-shaped cross section having a vertical wall (71) and a horizontal lower wall (72) extending inward from the lower edge of the vertical wall (71). , Extends in the front-back direction.
The horizontal lower wall (72) is attached to the upper surface of the baseboard mounting portion (21b) on the upper wall (21) of each of the left and right girders (2). More specifically, the tip of the bolt (8) inserted from above into a plurality of bolt insertion holes (721) spaced in the front-rear direction on the horizontal lower wall (72) of the baseboard (7). , The skirting board (7) by being screwed into the nut (9) housed in the internal expansion groove (211) opened on the upper surface of the skirting board mounting part (21b) on the upper wall (21) of each of the left and right girders (2). ) Is screwed to the left and right girders (2). The bolt head (8a) is located on the upper surface of the horizontal lower wall (72) of the skirting board (7) via a washer (18).
The outer surface of the vertical wall (71) of the baseboard (7) is almost flush with the outer surface of each of the left and right girders (2), and the inside of one vertical wall (51) of each support (5). It is arranged so as to overlap the side surface.
The tip (722) of the horizontal lower wall (72) of the baseboard (7) is overlapped with the left and right ends of the upper surface of the floor plate (4). The tip (722) of the horizontal lower wall (72) is tapered so that its upper surface side inclines downward toward the tip so that there is no step between the horizontal lower wall (72) and the floor (40). It has been done. The left-right width of the tip side portion of the horizontal lower wall (72) that overlaps the upper surface of the floor plate (4) can be adjusted and changed by appropriately setting the entire width of the horizontal lower wall (72).

According to the inspection path (1) of the first embodiment described above, the following effects are achieved.
That is, according to the inspection path (1), since the left and right baseboards (7) are attached to the upper surfaces of the left and right girders (2), for example, on either the left or right side of the inspection path (1). Baseboards (7) can be installed on the same side even if the columns (5) and handrails (6A) (6B) cannot be installed due to installation space.
According to the above inspection path (1), since the skirting board (7) is attached to the upper surface of the girder (2) existing over the entire length of the inspection path (1), the mounting position of the skirting board (7) and The length can be adjusted arbitrarily, so even if a bridge truss or the like crosses just above the floor surface (40), for example, the skirting board (7) is configured not to be installed only at the crossing point such as the truss. It is possible to do.
According to the above inspection path (1), a floor plate mounting portion (21a) is formed on the inner portion of the upper wall (21) of the girder (2), and a baseboard mounting portion (21b) is formed on the outer portion. Therefore, the floor board (4) erection work and the baseboard (7) installation work can be performed efficiently and easily.
According to the inspection path (1), since the skirting board (7) has an L-shaped cross section having a vertical wall (71) and a horizontal lower wall (72), the floor surface of the inspection path (2) ( 40) The fall of the article is surely prevented.
According to the above inspection path (1), the tip (722) of the horizontal lower wall (72) of the baseboard (7) overlaps the upper surface of the floor plate (4), so that the tip (722) Plays the role of pressing the floor plate (4) from above, and the tip (722) allows articles and dust in the gap between the end of the floor plate (4) and the baseboard mounting portion (21b) of the girder (2). Etc. are prevented from entering, and maintenance is easy. In addition, the tip (722) of the horizontal lower wall (72) of the skirting board (7) covers the gap between the end of the floor plate (4) and the skirting board mounting part (21b) of the girder (2). , The gap between the end of the floor board (4) and the baseboard mounting part (21b) of the girder (2), and the left and right ends of the floor board (4) are the floor board mounting parts (21a) of the left and right girders (2). It is also possible to improve workability by setting it to a slightly wider size so that the work when placing it on the floor is easy.
According to the inspection path (1), the internal expansion groove (211) formed in the baseboard mounting portion (21b) of the upper wall (21) of the girder (2) and the horizontal lower wall (72) of the baseboard (7). ), The skirting board (7) can be screwed to the skirting board mounting part (21b) with multiple sets of bolts (8) and nuts (9) using the bolt insertion hole (721) formed in). , The mounting work of the baseboard (7) can be performed easily and quickly, and the mounting position of the baseboard (7) can be easily adjusted. In addition, according to the above inspection path (1), other structural materials are also connected by bolts and nuts, so the entire inspection path (1) can be assembled at the installation site without requiring special technology. It can be done efficiently and easily.

[Second Embodiment]
10 and 11 show a part of the inspection path according to the second embodiment of the present invention.
The inspection path of this embodiment is substantially the same as the inspection path (1) of the first embodiment shown in FIGS. 1 to 9 except for the following points.
That is, in the case of the inspection path (1X) shown in the figure, the skirting boards are attached to the left and right girders (2) and the upper wall (21) on the lower surface of the central portion of the horizontal lower wall (72) on the left and right skirting boards (7X). A fitting ridge (211X) having a substantially inverted T-shaped cross section that can be fitted into the fitting concave groove (211X) consisting of the upper part of the internal expansion groove (211) opened on the upper surface of the portion (21b) from either the front or the back. 723) is formed.
Then, the skirting board (7X) is attached to the skirting board mounting portion (21b) by fitting the fitting groove (211X) and the fitting ridge (723).
Therefore, according to the inspection path (1X), the work of attaching the skirting board (7X) to the upper surface of the girder (7) can be performed more easily and quickly, and the mounting position of the skirting board (7X). It is also easy to adjust.

[Third Embodiment]
12 and 13 show a part of the inspection path according to the third embodiment of the present invention.
The inspection path of this embodiment is substantially the same as the inspection path (1) of the first embodiment shown in FIGS. 1 to 9 except for the following points.
That is, in the illustrated inspection path (1Y), the skirting board mounting portion (21b) formed on the outer side of the upper wall (21) of each of the left and right girders (2Y) has a width as compared with that of the first embodiment. In addition to being narrow, only the internal expansion groove (212) opened on the outer surface is formed in the skirting board mounting portion (21b).
The left and right skirting boards (7Y) are shaped like vertical plates.
The lower part of the baseboard (7Y) is attached to the outer surface of the baseboard attachment portion (21b). More specifically, the bolt (11) in which the bolt head (11a) is housed in the internal expansion groove (212) of the skirting board mounting portion (2b) is attached to one vertical wall (51) of each support (5). A bolt insertion hole (not shown) drilled slightly above the lower end, and a bolt insertion hole (73) drilled at a location corresponding to the bolt insertion hole of each column (5) at the bottom of the baseboard (7Y). The lower part of the skirting board (7Y) is screwed to the outer surface of each of the left and right girders (2) together with the lower end of each column (5) by screwing the nut (12) into the tip. There is.
Here, a baseboard (7Y) is attached to a long bolt (11X) in which the lowermost portion of one vertical wall (51) of each support (5) is screwed to the outer surface of each of the left and right girders (2Y). A spacer ring (19) having a thickness approximately equal to that of the vertical wall (51) is extrapolated so as to be interposed between the vertical wall (51) and the outer surface of the girder (2Y).
According to the above inspection path (1Y), the skirting board (7Y) has a simple vertical plate-like structure, and the structure of the upper wall (21) of the girder (2Y) is also the first and second embodiments. Since it is simplified compared to the one, the manufacturing cost is reduced accordingly.
In addition, according to the above inspection path (1Y), the left and right skirting boards (7Y) are attached to the left and right girders (2Y) by a plurality of sets of bolts (11) and nuts (12) together with the lower part of each support (5). Since it is possible to fasten the screws to the outer surface of the inspection path (1Y), the efficiency of the assembly work of the inspection path (1Y) can be improved, and the cost can be reduced by standardizing the mounting parts.

FIG. 14 shows a modified example of the floor plate.
The floor plate (4X) shown in the figure has a substantially L-shaped cross section in which the front and rear end hanging walls (42X) have an installation portion (422) bent at a right angle inward in the front-rear direction at the lower end thereof. It has been done.
In addition, one intermediate hanging wall (43X) of the floor board (4X) is provided at the center of the front-rear width of the top horizontal wall (41), and a pair of front-rear vertical wall portions (432) and both vertical wall portions (432) are provided. It is a substantially U-shaped cross section having a lower horizontal wall portion (433) connecting the lower ends of 432).
Then, the end hanging walls (42X) of the floor plates (4X) adjacent to the front and rear are screwed together by bolts (14) and nuts (15) to be connected to each other.
The floor plate (4X) described above can also be applied to the inspection paths (1) (1X) (1Y) according to the first to third embodiments, similarly to the floor plate (4) described above.

In the first to third embodiments, the left and right skirting boards are attached to the upper surface or the outer surface of the left and right girders, but the skirting boards may be attached to the left and right ends of the upper surface of the floor board. Good. Further, the skirting board may be attached over two or more portions of the upper surface and the outer surface of the girder and the left and right ends of the upper surface of the floor plate.

INDUSTRIAL APPLICABILITY The present invention is suitably used as an inspection path (inspection scaffolding) used when installing on a structure such as a bridge and performing work such as inspection and repair of the structure.

(1) (1X) (1Y): Inspection path
(2) (2Y): Digits
(21): Upper wall
(21a): Floor board mounting part
(21b): Baseboard mounting part
(211): Internal expansion groove opened on the upper surface
(211X): Fitting concave groove
(212): Internal expansion groove opened on the outer surface
(3): Crosspiece
(4) (4X): Floor board
(40): Floor
(5): Support
(6A): Upper handrail (handrail)
(6B): Intermediate handrail (handrail)
(7) (7X) (7Y): Baseboard
(71): Vertical wall
(72): Horizontal lower wall
(721): Bolt insertion hole
(722): Tip of horizontal lower wall
(723): Fitting ridge
(8): Bolt
(8a): Bolt head
(9): Nut
(11): Bolt
(11a): Bolt head
(12): Nut

Claims (7)

A pair of left and right digits and
Multiple crosspieces connecting the facing surfaces of the left and right girders,
Multiple floorboards that are erected in parallel on the left and right girders to form the floor surface,
With at least one of the left and right girders attached vertically upward to at least one of the left and right girders,
At least one of the left and right handrails that are horizontally handed over to the plurality of columns,
It is equipped with left and right skirting boards that are provided in a rising shape along the left and right edges of the floor.
An inspection path in which the left and right skirting boards are attached to at least one of the upper and outer surfaces of the left and right girders and the left and right ends of the upper surface of the floor board. Each of the left and right girders is made of a hollow metal profile, and a flat floor plate mounting portion for mounting the left and right ends of the floor plate is formed on the inner portion of the upper wall thereof, and the floor plate mounting portion is formed. On the outer side of the upper wall, a skirting board mounting portion is formed so as to project upward by a predetermined height in a ridge shape with respect to the floor plate mounting portion.
The left and right skirting boards include a vertical wall and a horizontal lower wall extending inward in the left-right direction from the lower end edge of the vertical wall and attached to the upper surface of the skirting board mounting portion of each of the left and right girders. The inspection path described. The skirting board mounting portion protrudes upward in a ridge shape by a height substantially equal to the thickness of the floor plate with respect to the floor plate mounting portion.
The inspection path according to claim 2, wherein the horizontal lower wall of each of the left and right skirting boards has a width such that the tip side portion thereof overlaps the upper surface of the floor plate. An internal expansion groove opened on the upper surface is formed in the baseboard mounting part,
Multiple bolts that are inserted from above or below into multiple bolt insertion holes drilled in the horizontal lower wall of the skirting board and whose head is located on the upper surface side of the horizontal lower wall or in the internal expansion groove, and internal expansion The inspection path according to claim 2 or 3, wherein the skirting board is screwed to the skirting board mounting portion by a plurality of nuts arranged in a groove or on the upper surface side of a horizontal lower wall and screwed into a bolt. A fitting concave groove consisting of an internal expansion groove opened on the upper surface is formed in the baseboard mounting portion, and the fitting concave groove can be fitted into the fitting concave groove from either the front or the back on the lower surface of the horizontal lower wall of the baseboard. The inspection path according to claim 2 or 3, wherein a fitting ridge having a different shape is formed, and a skirting board is attached to the skirting board attachment portion by fitting the fitting concave groove and the fitting ridge. .. Each of the left and right girders is made of a hollow metal profile, and a flat floor plate mounting portion for mounting the left and right ends of the floor plate is formed on the inner portion of the upper wall thereof, and the floor plate mounting portion is formed. The outer part of the upper wall has a skirting board mounting part that protrudes upward by a predetermined height in a ridge shape with respect to the floor plate mounting part and the outer surface is flush with the outer surface of the outer wall of each of the left and right girders. And
The inspection path according to claim 1, wherein each of the left and right skirting boards has a vertical plate shape, and the lower portion thereof is attached to the outer surface of the skirting board mounting portion. An internal expansion groove opened on the outer surface is formed in the baseboard mounting part,
Multiple bolts that are inserted from the outside or inside in the left-right direction into the multiple bolt insertion holes drilled in the lower part of the skirting board, and the bolt head is arranged on the outer surface side of the skirting board or in the internal expansion groove, and internal expansion The inspection path according to claim 6, wherein the skirting board is screwed to the skirting board mounting portion by a plurality of nuts arranged in a groove or on the outer surface side of the skirting board and screwed into a bolt.

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