JPH0481021B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a construction method for a temporary framework scaffold for new construction, renovation, etc. of a building.

[Conventional technology]

Figures 14 and 15 show the construction method of conventional framework scaffolding.
The diagram will be explained.

14 and 15, reference numeral 1 is a building frame with a basic configuration in which both ends of a horizontal pipe 3 are welded and fixed between the upper ends of two vertical pipes 2, and a pair of building frames 1 are arranged at a predetermined interval. The opposing vertical pipes 2 of these building frames 1 are connected by braces 4, and two steel cloth plates 5 are engaged and supported on the opposing horizontal pipes 3 to form a large number of rectangular parallelepipeds. A temporary framework scaffolding is constructed by constructing framework bodies 6 having a shape and connecting these framework bodies 6 in the horizontal and vertical directions. Since the distance between the vertical pipes 2 of different building frames 1 constituting the frame body 6 is longer than the distance between the vertical pipes 2 of the same building frame 1, braces 4 are provided at the latter intervals. Additionally, depending on the shape of the building being newly constructed or renovated, it is often necessary to provide corners that bend at right angles to the scaffolding.
As shown in FIG. 15, one of the adjacent framework bodies 6
The end face of the other frame body 5 is brought into contact with the side surface of the frame body 5, thereby connecting and fixing both adjacent frame bodies.

[Problems to be solved by the invention] However, as is clear from Fig. 15, the framework scaffold obtained by the conventional construction method described above has
Place the brace 4 of one frame body 6 on the cloth board 5 at the corner.
Since the braces 4 cross over the cloth board 5, there is a problem in that when a worker passes over the cloth board 5 with a large material or work equipment, the braces 4 get in the way and pose a danger. Therefore, it has been considered to eliminate the braces 4 located on the cloth board 5, but this has the problem that it weakens the strength of the corner portions of the scaffold and cannot be applied to particularly tall scaffolds.

The present invention solves the above-mentioned problems, eliminates members such as braces that get in the way when carrying large materials or work equipment on the cloth board at the corner, and uses different types of members for the corner. The purpose of this study is to provide a method for constructing a framework scaffolding that has fewer corners and can easily construct corner sections.

[Means for solving problems]

In the present invention, a pair of building frames having a basic configuration in which both ends of a horizontal pipe are fixed between the upper ends of two vertical pipes are opposed at a predetermined interval, and the opposing vertical pipes of the building frames are connected by braces. In the construction method of frame scaffolding, which connects and supports cloth boards on opposing horizontal pipes to form a large number of rectangular parallelepiped frameworks, and connects these frameworks horizontally and vertically, the scaffolding The vertical pipes on the inner and outer sides of adjacent frame bodies are positioned and held close to each other by the engagement of the corner connecting fittings at the bent corners, and the vertical pipes on the other inner and outer sides of the adjacent frame bodies are also separated. erect the corner vertical pipe between these vertical pipes, and attach two of the corner cloth plates to the horizontal pipe of the adjacent frame body.
The side portions are engaged and supported, and the corner cloth plate is engaged and supported by a support fitting fixed to the upper end of the corner vertical pipe, the corner frame is assembled, and the corner vertical pipe is connected upwardly. The corner frame assembly is assembled sequentially from the bottom to the top.

[Effect]

The method for constructing a framework scaffold based on this invention uses three types of special parts for corners: corner connecting fittings, corner vertical pipes, and corner cloth boards, and uses corner braces when necessary. Since there are only a few types of members for the corner parts, the vertical pipes at the corner parts are erected, and the vertical pipes on one side of the adjacent frame bodies are positioned close to each other at the corner parts using corner joints. The corner frame assembly can be assembled by standing the corner vertical pipe, engaging and supporting the corner cloth plate with the horizontal pipe of the adjacent frame body, and engaging and supporting the support fitting of the corner vertical pipe. , Since such a corner frame body can be assembled and connected from the bottom to the top in the normal frame body connection work, no special tools or jigs are required to assemble the corner frame body. The corner frame body can be easily assembled by the same work as a normal frame body. In the present invention, the side faces and end faces of adjacent frame bodies are not brought into contact with each other at the corner parts, a square space corresponding to the dimensions of these end faces is created, and the corner part framework is constructed in this space. As a result, there are no striations that cross the cloth board at the corners, and there are no obstructions when carrying large materials or large work equipment through the corners, making it possible to transport large materials. Additionally, since there are no obstacles in the way, danger during work can be reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 9.

As shown in FIGS. 1 to 4, in the corner connecting fitting 7, a fitting tube 9 is welded and fixed to both ends of a fitting main body 8 whose external plane is in the shape of a stadium, and a line connecting these vertical axes is formed. An engaging portion 10 having a U-shaped cross section and opening at the lower surface and having horizontal axes B inclined at 135° with respect to A is fixed by welding.

In addition, the corner cloth plate 11 is a square-shaped one in which an angle member 13 is fixed by welding or the like to the lower surface of the outer peripheral edge of a face plate 12 made of a steel plate with a non-slip surface, as shown in FIGS. 1 and 5. , two engaging metal fittings 14 are fixed to each of two adjacent sides.

Furthermore, the corner vertical pipe 15 is shown in FIGS.
As shown in FIGS. 8 to 8, a support metal fitting 16 is welded and fixed to the outer circumferential surface of the upper end portion, the lower surface of the support metal fitting 16 is fixed to the outer circumferential surface of the corner vertical pipe 15 by a reinforcing piece 17, and the tip portion A folded piece 16a is provided which is bent upward and inwardly from the upper end, and the folded piece 16a is formed into a planar trapezoid with the right-angled apex of a right-angled isosceles triangle cut away. Upper and lower locking fittings 18 for locking the braces 19 are disposed below the support fitting 16, and these locking fittings 18
In this case, locking pieces 18b are welded and fixed to both ends of a mounting piece 18a that is welded and fixed to the outer circumferential surface of the corner vertical pipe 15, and these locking pieces 18b are perpendicular to each other on both sides of the folded piece 16a. It is placed in a flat position.

As shown in FIG. 9, except for the corner parts, the building frame 1 has a basic structure in which both ends of the horizontal pipe 3 are fixed between the upper ends of the two vertical pipes 2, similar to the conventional framework scaffolding. A pair of steel cloth plates 5 are placed facing each other at a predetermined interval, and the opposing vertical pipes 2 of these building frames 1 are connected by braces 4, and two steel cloth plates 5 are placed on the opposing horizontal pipes 3.
By hooking the engaging metal fittings 14 provided on these opposing sides to the horizontal pipe 3, they are engaged and supported, forming a large number of framework bodies 6, and these framework bodies 6 are installed near the outside of the building 20 to be newly constructed or renovated. Connect them horizontally by appropriate means.

At the corner parts of buildings and scaffolding, as shown in FIGS. 9 and 1, the inner vertical pipes 2 of adjacent framework bodies 6 are placed close to each other, and the end surfaces of adjacent framework bodies 6 are arranged in a square plane. A space 21 is left.
The lower half of the fitting tube 9 of the corner connecting fitting 7 is fitted into the upper end portion of the inner vertical tube 2 which is arranged close to each other and protrudes above the horizontal tube 3, and the engaging portion 10 of the connecting fitting 7 is fitted. By engaging and supporting the horizontal pipes 3 fixed to the vertical pipes 2 from above, the vertical pipes 2 inside the adjacent framework bodies 6 are positioned and held close to each other. Further, the corner vertical pipe 15 is erected at the outer corner of the space 21 facing the connecting fitting 7, with the supporting fitting 16 and the upper and lower locking pieces 18b facing inward. The four ends of the corner brace 19 are attached to the upper and lower locking pieces (not shown) provided on the outer vertical pipe 2 of the frame body 6 adjacent to the corner and the upper and lower locking pieces 18b of the corner vertical pipe 15. By engaging the parts, the vertical frame 2 and the corner vertical pipe 15 are connected by the corner brace 19 at the two outer sides of the space part 21. Furthermore, the engaging fittings 14 of the corner cloth plate 11 are connected to the two inner sides of the space 21 of the adjacent frame body 6.
It is hung from above on the horizontal pipes 3 facing the sides, and the corner cloth boards 11 are engaged and supported by these horizontal pipes 3.
The outer corner of the corner cloth board 11 is
The corner frame 22 is constructed by engaging and supporting the angle member 12 with the support fitting 16 of the corner vertical pipe 15. Then, from the bottom to the top, the frame bodies 6 are connected, and the corner frame bodies 22 are also connected. Corner frame 2
2 are connected upwardly, the lower end of the vertical pipe 2 inside the frame body 6 to be connected upward is fitted into the upper half of the fitting tube 9 of the corner connecting fitting 7, and the corner vertical pipe 2 is connected upwardly. The lower end of the corner frame 22 connected upward is fitted into the upper end of the corner frame 15.

Although not shown in the drawings, fitting portions made of small outer diameter tubes or rods are fitted and fixed to the upper ends of the vertical pipes of the frame body and corner frame bodies, and the corner vertical pipes. It is preferable to fit the lower ends of the upper vertical tube and the corner vertical tube into the insertion part, and the lowermost vertical tube and the corner vertical tube are equipped with jacks as necessary.

Moreover, in order to remove the framework scaffold constructed by the construction method of this embodiment, each member may be sequentially removed in the reverse order of the construction described above.

12A and 12B are a perspective view and a partial top view of a modified example of the support fitting 16. In this modification, two support fittings 1 are provided at the upper end of the corner vertical pipe 15.
It is the same as the first embodiment in that the parts 6 and 6 are fixed at a diagonal angle of 90°, but the supporting metal parts 1
6 is pipe-shaped, and has a flange 16b at the tip.
The difference is that it was formed. Therefore, in terms of the operation and effect of the present invention, there is no substantial difference from the above embodiment.

In FIGS. 13A and 13B, the fitting main body 8 is formed of a flat metal piece, and circular through holes 9a are provided at both ends of the fitting body 8 to serve as fitting portions 9. In this example, the engaging member 10 is welded. This configuration has the advantage that it is easier to manufacture than the above embodiment.

In the present invention, when a building has a part that protrudes outward, at the bent part of the scaffold at the base of this part, a space is formed on the inside, that is, on the building side,
A corner frame body may be provided in this space.

In addition, in this project, the corner connecting fittings are
As shown in FIG. 10, a member having a semicircular cross section may be welded and fixed to the metal fitting body 8, and the fitting tube 9 may be constructed using both ends of this body 8, as shown in FIG. The fitting tube may be omitted.

〔Effect of the invention〕

As explained above, the method for constructing a frame scaffold according to the present invention involves positioning the vertical pipes on the inner and outer sides of the adjacent frame bodies at the bending corner of the scaffold by bringing them close to each other by engaging the corner connecting fittings. holding the inner and outer vertical pipes of the adjacent framework bodies apart, and erecting the corner vertical pipe between these vertical pipes,
The two sides of the corner cloth plate are engaged with and supported by the horizontal pipes of the adjacent frame bodies, and the corner cloth plate is engaged with and supported by a support fitting fixed to the upper end of the corner vertical pipe. Since the body can be assembled, the corner framework can be easily incorporated into a normal framework using a small number of main members and can be connected horizontally, and the corner framework can also be connected upward. It's easy to do. The framework scaffold obtained by the construction method of the present invention has no obstructions such as braces that cross the cloth boards at the corners, making it easier to carry large materials or work equipment. This has the effect that it is possible to pass over the top safely, and there is no lack of strength at the corners.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a corner part of a framework scaffold constructed by the construction method of one embodiment of the present invention;
Figures 3 and 4 are enlarged perspective views, top views, and side views of the corner connecting fittings, Figure 5 is a side view of the corner cloth plate, and Figure 6 is the corner vertical pipe. 7 and 8 are an enlarged side view and an enlarged plan view of the upper part of FIG. 6,
9 is a schematic partial perspective view of a framework scaffold in the middle of construction by the method of one embodiment of the present invention; FIGS. 10 and 11 are perspective views showing different modifications of the corner connecting fittings; and FIG. 12. A and B are a perspective view and a partial plan view showing a modification of the support fitting according to the present invention, FIGS. 13A and B are a plan view and a front view showing another modification of the metal fitting main body, and FIG. 14 is a diagram of a conventional example. Partial schematic perspective view of a framework scaffold constructed by the construction method, No. 15
The figure is a perspective view of the corner portion. 1...Building frame, 2...Vertical pipe, 3...Horizontal pipe, 4...
Bracing, 5... Cloth board, 6... Frame body, 7... Corner connection fitting, 8... Fitting main body, 9... Fitting tube,
10... Engaging portion, 11... Corner cloth plate, 12
... Face plate, 13 ... Angle material, 14 ... Engaging metal fitting, 15 ... Corner vertical pipe, 16 ... Supporting metal fitting, 16a ... Turning piece, 17 ... Reinforcement piece, 18
... Locking metal fitting, 18a ... Mounting piece, 18b ... Locking piece, 19 ... Corner brace, 20 ... Building,
21...Space part, 22...Corner part frame body.

Claims (1)

[Scope of Claims] 1. A pair of building frames having a basic configuration in which both ends of a horizontal pipe are fixed between the upper ends of two vertical pipes are opposed at a predetermined interval, and the opposing vertical pipes of the building frames are braced. connected by
A corner where the scaffold bends in a method of constructing a framework scaffold in which fabric boards are engaged and supported on opposing horizontal pipes to form a number of rectangular parallelepiped frameworks and connect these frameworks horizontally and vertically. positioning and holding the vertical pipes on the inner and outer sides of the adjacent frame bodies in close proximity to each other by engaging the corner connecting fittings;
The vertical pipes on the inner and outer sides of the adjacent framework bodies are also spaced apart,
A corner vertical pipe is erected between these vertical pipes, two sides of the corner cloth plate are engaged and supported by the horizontal pipes of the adjacent frame body, and the corner cloth plate is connected to the upper end of the corner vertical pipe. A method for constructing a frame scaffold, characterized in that the corner framework is assembled by engaging and supporting supporting metal fittings fixed to the frame, and the corner vertical pipes are connected upwardly, and the corner framework is sequentially assembled from the bottom to the top. . 2. The method for constructing a frame scaffolding according to claim 1, wherein the corner vertical pipe is connected to a vertical pipe on a spaced side of an adjacent frame body at the corner part by a brace. 3 Adjacent framework bodies at the corner where the scaffold bends are perpendicular to each other in the horizontal plane, the cloth board is configured in a square plane, and the two adjacent sides are engaged and supported by the horizontal pipes of the adjacent framework bodies, 3. The method for constructing a framework scaffold according to claim 1 or 2, wherein the corner portion on the side opposite to the corner connecting fitting is engaged with and supported by the supporting fitting of the corner vertical pipe.