JP7491568B2 - Covering the opening around the platform pile - Google Patents

Description

The present invention relates to a curing cover for an opening around a gantry pile to close an opening between the gantry pile made of H-shaped rope and the framework of a building.

A gantry, also called a stage, is a temporary platform installed for a specific purpose at civil engineering or construction sites. At construction sites, temporary gantry are installed to allow trucks to transport materials to enter, and also for excavating underground. The gantry is attached to and supported by gantry piles made of H-shaped steel that are installed vertically. The H-shaped steel used as the gantry pile has a web that extends straight like a belt, and two flanges that are attached integrally to both sides of the web at right angles to the web and are parallel to each other.

When constructing a building made of reinforced concrete, the building framework, such as the floor plates that make up the building, is constructed above and below the gantry, and the concrete and other materials required to construct the building framework are transported by trucks that run on the gantry. Through holes are formed in the building framework through which the gantry piles pass. The gantry is dismantled once the portion below the gantry is completed.

Patent Document 1 discloses a formwork support that is attached to a gantry pile, and the support has a suspension rod that is attached to the gantry pile. An end receiver attached to the lower end of the suspension rod supports the end of the formwork, which is the part close to the flange of the gantry pile, and closes the opening between the through hole of the formwork and the flange.

Patent No. 3227551

However, the space between the opposing flanges on both sides of the web is not closed, and the through-hole in this space is open. In this way, if the inner area between the opposing flanges around the gantry piles in the through-hole portion that makes up the building structure is exposed to the outside, it is expected that objects will fall downward from the opening, making it impossible for workers to work safely on the building structure. For this reason, it is necessary to attach steel plates or the like to the structure at each site by welding or screwing them in, which poses the problem that it is not easy to cover the openings around the gantry piles in the building structure.

The object of the present invention is to provide an opening curing cover that can easily cover an opening formed between a gantry pile and a through hole in a building frame.

The opening curing cover of the present invention is an opening curing cover around a gantry pile that closes an opening between a gantry pile having a web and two parallel flanges and a through hole in a building frame, and has a first cover assembly positioned on one side of the web and placed on the building frame, and a second cover assembly positioned on the other side of the web and placed on the building frame, and the first cover assembly and the second cover assembly are a first cover member having a first outer area that covers the area between the outer side of one of the flanges and the through hole through a first slit into which one of the flanges enters, and a first inner area that covers the inner side of one of the flanges, and a second cover member having a second outer area that covers the area between the outer side of the other flange and the through hole through a second slit into which the other flange enters, and a second inner area that covers the inner side of the other flange and overlaps the first inner area, and has a connecting metal fitting that connects the first cover assembly and the second cover assembly.

The two lid assemblies each have a first lid member and a second lid member, and by placing both lid assemblies on either side of the gantry pile via the web, the opening between the through hole in the building frame and the gantry pile, including the opening between the two flanges of the gantry pile, is covered and closed by the opening curing lid. Both lid members have the same structure, and the opening curing lid can be assembled with a small number of parts. Both lid assemblies are connected by attaching connecting fittings while the first lid member of one lid assembly and the second lid member of the other lid assembly are butted together, so that the opening curing lid can be easily placed on the building frame.

1 is a perspective view showing a portion of a building structure in which an opening curing cover around a gantry pile according to one embodiment is placed. FIG. FIG. 2 is a perspective view showing the opening protection cover shown in FIG. 1 in a separated state. FIG. 2 is a plan view showing the opening protective cover. This is a plan view showing the opening protection cover with the two lid assemblies separated and the two lid members of each lid assembly separated. 4 is a plan view showing a state in which an opening curing cover is attached to a gantry pile larger than the gantry pile shown in FIG. 3. A plan view showing a modified opening protection cover.

The following is a detailed description of an embodiment of the present invention with reference to the drawings. As shown in Figs. 1 to 3, the gantry pile 10 erected on the ground has a straight, band-shaped web 11 and two straight, band-shaped flanges 12, 13 that are integrated with both sides of the web 11, and the flanges 12, 13 are parallel to each other and perpendicular to the web 11. Each of the flanges 12, 13 is integrated with the web 11 on the inner surface at the center of the width direction, and the gantry pile 10 is made of H-shaped steel.

A gantry (not shown) is attached to the top of the gantry pile 10, and materials necessary for construction are delivered to the construction site by trucks or the like running on the gantry supported by the gantry pile 10. The building framework 14, such as floorboards that make up the building, is constructed successively from the lower floors, and a through hole 15 is formed in the building framework 14 to avoid interference between the building framework 14 and the gantry pile 10. The gantry pile 10 passes through the through hole 15 and supports the building framework 14 with a member (not shown). The gantry pile 10 is shown by a two-dot chain line in FIG. 1 and by a solid line in FIGS. 2 and 3. An opening is formed between the through hole 15 and the gantry pile 10.

As shown in FIG. 3, the platform pile 10 made of H-shaped steel is symmetrical about a horizontal center line O that passes through the center of the thickness direction of the web 11 and extends in the width direction of the web 11.

The opening curing cover 16 around the gantry pile that closes the opening has a first cover assembly 17 and a second cover assembly 18. As shown in FIG. 3, the first cover assembly 17 is positioned on the building structure 14, below the center line O of the gantry pile 10 in FIG. 3, that is, on one side of the web 11. The second cover assembly 18 is positioned on the building structure 14, above the center line O of the gantry pile 10, that is, on the other side of the web 11. Both cover assemblies 17, 18 are assembled from the same parts and are rotationally symmetrical about the vertical center line P of the web 11.

Each of the lid assemblies 17, 18 has a first lid member 21 and a second lid member 31. In FIG. 4, the two lid assemblies 17, 18 are shown separated in the direction indicated by the arrow A, and the first lid member 21 and the second lid member 31 constituting each of the lid assemblies 17, 18 are shown separated in the direction indicated by the arrow B.

The cover member 21 of the first cover assembly 17 is formed of a generally rectangular steel plate with a length L of 480 mm and a width W of 400 mm. When the cover member 21 is placed on the building structure 14, a first slit 22 is formed in the first cover member 21 into which the lower part of one flange 12 is inserted with the web 11 as a boundary in FIG. 3. The cover member 21 has a first outer region 23 that covers the opening between the outer surface side of the flange 12 and the through hole 15 through the slit 22, and a first inner region 24 that covers the opening on the inner surface side of the flange 12, and the other part constitutes a first base 25. When the cover member 21 is placed on the building structure 14, the base 25 comes into contact with the surface of the building structure 14, and the cover member 21 is placed on the building structure 14. The side edge of the lid member 21 facing the opening of the slit 22 has an abutting edge 26 and an opposing edge 27, and the opposing edge 27 is recessed toward the opposite edge from the abutting edge 26.

Like the first lid member 21, the second lid member 31 is formed of a generally rectangular steel plate with a length L of 480 mm and a width W of 400 mm. When the lid member 31 is placed on the building structure 14, a second slit 32 is formed in the second lid member 31 into which the lower part of the other flange 13 enters, with the web 11 as the boundary in FIG. 3. The lid member 31 has a second outer region 33 that covers the opening between the outer surface side of the flange 13 and the through hole 15 through the slit 32, and a second inner region 34 that covers the opening on the inner surface side of the flange 13, and the other part constitutes a base 35. When the lid member 31 is placed on the building structure 14, the base 35 comes into contact with the surface of the building structure 14, and the lid member 31 is placed on the building structure 14. The side edge of the lid member 31 facing the opening of the slit 32 has an abutting edge 36 and an opposing edge 37, and the opposing edge 37 is recessed toward the opposite edge from the abutting edge 36.

In this way, the two lid members 21, 31 are manufactured using steel plates of the same size and have the same basic structure, making it possible to manufacture the two lid assemblies 17, 18 using a small number of parts.

The second lid assembly 18, like the first lid assembly 17, is composed of a first lid member 21 and a second lid member 31. The lid members 21, 31 of the second lid assembly 18 have the same structure as the lid members 21, 31 of the first lid assembly 17, and the first lid member 21 has a first slit 22, a first outer region 23, and a first inner region 24, and the other parts form a first base 25. The second lid member 31 has a second slit 32, a second outer region 33, and a second inner region 34, and the other parts form a second base 35.

In each of the lid assemblies 17, 18, when the slit 22 of the first lid member 21 fits into one of the two flanges 12, 13, the slit 32 of the second lid member 31 fits into the other of the two flanges 12, 13.

In this way, the two lid members 21, 31 that make up the lid assemblies 17, 18 respectively have the same structure, and the two lid assemblies can be manufactured using a small number of parts.

When both lid assemblies 17, 18 are placed over the opening of the building frame 14, as shown in FIG. 3, one flange 12 is inserted into the slit 22 of the lid member 21 of the lid assembly 17, and the other flange 13 is inserted into the slit 32 of the lid member 31. Furthermore, one flange 13 is inserted into the slit 22 of the lid member 21 of the lid assembly 18, and the other flange 12 is inserted into the slit 32 of the lid member 31. The inner regions 24, 34 of the lid members 21, 31 of each lid assembly 17, 18 cover the opening on the inner side of the flanges 12, 13 formed by the web 11 and both flanges 12, 13, and the two inner regions 24, 34 are overlapped with each other. FIG. 3 shows the state in which the second lid member 31 is overlapped on the top of the first lid member 21.

Furthermore, the abutting edge 26 of the lid member 21 of the lid assembly 17 abuts against the abutting edge 36 of the lid member 31 of the lid assembly 18, and the opposing edge 27 of the lid member 21 of the lid assembly 17 faces the opposing edge 37 of the lid member 31 of the lid assembly 18 via the web 11. The web 11 fits between the opposing edges of both lid assemblies 17, 18.

To connect the first lid assembly 17 and the second lid assembly 18, the lid members 21 of the lid assemblies 17 and 18 are provided with metal fitting holes 28 and the lid member 31 is provided with metal fitting holes 38, and the connecting metal fittings 40 are attached to both metal fitting holes 28 and 38 as shown in Figs. 2 and 3. As shown in Fig. 2, the connecting metal fittings 40 have legs 41 that are attached to the metal fitting holes 28 and legs 42 that are attached to the metal fitting holes 38, and the connecting metal fittings 40 connect the lid members 21 and 31 of one lid assembly 17 to the lid members 21 and 31 of the other lid assembly 18. In this way, by inserting the legs 41 and 42 into the metal fitting holes 28 and 38, the two lid assemblies 17 and 18 can be easily connected by the connecting metal fittings 40.

When the cover member 21 and cover member 31 of each cover assembly 17, 18 are connected by the connecting fittings 40, the cover member 21 of cover assembly 17 and the cover member 31 of cover assembly 18 are connected with the inner regions 24, 34 inserted between both flanges 12, 13, and the cover member 31 of cover assembly 17 and the cover member 21 of cover assembly 18 are connected, so that the opening protection cover 16 covers the opening between the platform pile 10 and the through hole 15, and prevents the opening protection cover 16 from coming off the platform pile 10.

To firmly fasten the two lid members 21, 31 of each lid assembly 17, 18, two screw holes 29 are provided in a pair in the inner region 24 of the lid member 21, and three pairs of screw mounting holes 39a-39c are provided in the inner region 34 of the lid member 31. Each pair of screw mounting holes 39a-39c is paired with two mounting holes. The three pairs of screw mounting holes 39a-39c are offset in the direction along the web 11. Note that one screw hole 29 may be provided in the lid member 21, in which case three screw mounting holes 39a-39c are provided in the lid member 31.

The two lid members 21, 31 differ in that lid member 21 has a screw hole 29 while lid member 31 has screw mounting holes 37a-37c, but they have the same external shape and can be manufactured using steel plates of the same size. In this way, lid member 21 and lid member 31 have a structure with the front and back reversed, that is, a rotationally symmetric structure.

The sizes of the gantry pile 10 expected to be used to support the building frame 14 are H-300, H-350, and H-400, and the numbers in each size correspond to the distance between the two flanges 12, 13. The gantry pile 10 shown in FIG. 3 is H-300, and the distance between the two flanges 12, 13 is the narrowest compared to other types. When attaching the opening curing cover 16 to this gantry pile 10, as shown in FIG. 1 to FIG. 3, the screw member 44 as a fastener passes through the mounting hole 39a and is screwed into the screw hole 29. In this way, by providing multiple mounting holes in the cover member 31, a set of opening curing covers 16 can be attached to multiple gantry piles 10, and the cover member 21 and the cover member 31 can be firmly fastened.

Figure 5 is a plan view showing the state in which an opening cover is attached to a gantry pile larger than the gantry pile shown in Figure 3. In this case, the overlapping area of the inner area 24 and the inner area 34 is narrower than that shown in Figure 3, but the opening between both flanges 12, 13 is closed by both inner areas 24, 34. The screw member 44 passes through a pair of mounting holes 39c located farthest from the slit 32 and is screwed into the screw hole 29.

Even when the through hole 15 in the building structure 14 is the largest, the bases 25, 35 of the cover members 21, 31 come into contact with the building structure 14, and the gap, i.e., the opening, between the gantry pile 10 and the building structure 14 is covered by the outer regions 23, 33 and the inner regions 24, 34. This allows workers to approach the gantry pile 10 and work safely on the building structure 14.

The lid members 21, 31 are fitted with handle members 45 for workers to carry the lid members 21, 31. The handle members 45 are rotatably attached to support members 46 fixed to the lid members 21, 31, and when the lid assemblies 17, 18 are placed on the building structure 14, the handle members 45 are in a closed position in contact with the lid members 21, 31. When transporting each of the lid members 21, 31, the respective handle members 45 are operated to the open position.

In order to prevent the cover members 21, 31 from shifting on the building structure 14 when the opening cover 16 is placed on the building structure 14, the cover members 21, 31 are provided with three screw mounting holes 47a-47c, and as shown in Figures 3 and 5, a bolt 48 is attached as a contact rod to one of the mounting holes 47a-47c. When the bolt 48 is attached to one of the mounting holes 47a to 47c on the inside to match the size of the through hole 15 of the building structure 14, the bolt 48 is in a state close to the corner of the through hole 15. As a result, when the cover members 21, 31 shift horizontally, the bolt 48 comes into contact with the corner of the through hole 15, and the bolt 48 prevents the cover members 21, 31 from shifting.

Figure 6 is a plan view showing a modified opening protection cover. In this case, a long hole 49 is formed in the cover member 31, and the long hole 49 corresponds to the length and width including all three screw mounting holes 39a to 39c shown in Figure 4. The rest of the structure is the same as the opening protection cover 16 shown in Figure 4, and the same reference numerals are used for the parts that are common to Figure 4.

As described above, by arranging the two lid assemblies 17, 18, which have the same structure, to surround the gantry pile 10 and connecting them with the connecting fittings 40, the gap between the gantry pile 10 and the through hole 15 of the building structure 14, i.e., the opening, can be covered with the opening cover 16 without creating even the slightest gap. This allows workers to work safely on the building structure 14. The two lid assemblies 17, 18 have the same structure and are composed of lid members 21, 31, each of approximately the same structure, and can be easily manufactured with a small number of different parts.

The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the invention. For example, the opening curing cover 16 shown in the figure is shaped so that it can be attached to any of three different sized gantry piles 10, but if the size of the cover members 21, 31 is made larger, it can be attached to three or more different types of gantry piles 10.

10 gantry pile 11 web 12, 13 flange 14 building frame 15 through hole 16 opening cover 17 first cover assembly 18 second cover assembly 21 first cover member 22 slit 23 outer region 24 inner region 25 base 26 butt edge 27 opposing edge 28 metal fitting mounting hole 29 screw hole 31 second cover member 32 slit 33 outer region 34 inner region 35 base 36 butt edge 37 opposing edge 38 metal fitting mounting holes 39a to 39c screw mounting hole 40 connecting metal fitting 44 screw member 45 handle member 47a to 47c mounting hole 48 bolt 49 long hole

Claims (7)

A cover for closing an opening between a gantry pile having a web and two flanges parallel to each other and a through hole in a building frame, the cover comprising:
a first lid assembly located on one side of the web and placed on the building structure; and a second lid assembly located on the other side of the web and placed on the building structure,
The first lid assembly and the second lid assembly are
a first cover member including a first outer region that covers a portion between an outer surface side of the one flange and the through hole via a first slit into which the one flange is inserted, and a first inner region that covers an inner surface side of the one flange;
a second cover member including a second outer region that covers a portion between an outer surface side of the other flange and the through hole via a second slit into which the other flange is inserted, and a second inner region that covers an inner surface side of the other flange and overlaps with the first inner region;
A cover for an opening around a gantry pile, the cover having a connecting fitting connecting the first cover assembly and the second cover assembly. In the curing cover for the opening around the platform pile according to claim 1,
A cover for an opening around a platform pile, the cover having a fastener for fastening the first cover member and the second cover member. In the curing cover for the opening around the platform pile according to claim 2,
The fastener is a screw member that penetrates one of a plurality of screw mounting holes provided in either the first cover member or the second cover member in a direction along the web, and is screwed into a screw hole provided in the other of the first cover member or the second cover member, in a cover for an opening around a gantry pile. In the curing cover for the opening around the gantry pile according to claim 3,
An opening protection cover around a gantry pile, in which a plurality of screw mounting holes are provided in a direction along the web , and a plurality of screw holes into which the screw members are screwed are provided in a direction perpendicular to the direction along the web . In the curing cover for the opening around the gantry pile according to claim 3,
A cover for covering an opening around a gantry pile , in which long holes corresponding to all of the plurality of screw mounting holes are provided in either the first cover member or the second cover member, and the screw members are threadedly connected to the screw holes by passing through the long holes. In the curing cover for the opening around the gantry pile according to any one of claims 1 to 5,
A curing cover for an opening around a platform pile, with a handle member on each cover member for easy carrying. In the curing cover for the opening around the gantry pile according to any one of claims 1 to 6,
An opening curing cover around a gantry pile has multiple mounting holes in each cover member, into which contact rods that contact the corners of the through holes are attached, according to the size of the through holes.

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