JPH08218621A - Scaffold for shaft - Google Patents

Abstract

PURPOSE: To easily move a scaffold by providing a jack on the lift type scaffold for constructing an elevator shaft, making its length and width variable, extending and hooking it on end face members at the time of work, and shrinking it at the time of movement. CONSTITUTION: When a scaffold base 20 is to be suspended in an elevator shaft 5, the scaffold base 20 is lifted or lowered and stopped at the prescribed position, the scaffold base 20 is extended in the vertical direction and horizontal direction into contact with the end faces 2e of slabs 2, and it is supported by support metals 21 and connecting bolts. Linear steel products may be combined into parallel crosses and expanded by the jack to extend the scaffold base 20, or the scaffold base 20 may be driven by screws via a pantograph type jack. When the scaffold base 20 is to be moved upward, the hooking on the slabs 2 is released, and the scaffold base 20 is shrunk not to have a trouble even if there is an obstacle (projection) in the middle. The elevator shaft 5 can be efficiently constructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft scaffold suitable for efficiently constructing a shaft which is a space extending vertically such as an elevator shaft in a building.

[0002]

2. Description of the Related Art Elevator shafts are usually constructed by passing through a slab on each floor of a building. In order to construct such an elevator shaft, first, the slabs on each floor are provided with openings that are vertically communicated with each other and are surrounded by the gable surface for the shaft, and the openings correspond to each other vertically between the slabs on the upper and lower floors. Then, a tubular elevator wall extending vertically is constructed between the vertically adjacent slabs by connecting the openings formed in these slabs. As a result, the elevator shaft is constructed as a space for transportation that extends in the up-down direction while being surrounded by the shaft end faces of these slabs and the elevator wall. When constructing the elevator wall, secure a scaffold for work,
In order to prevent inadvertent falling down inside the elevator shaft, a plate-like member is formed in the elevator shaft surrounded by the existing elevator wall immediately below the elevator wall to be constructed so as to close the elevator shaft. Construction of scaffolds has been proposed and implemented.

[0003]

By the way, when sequentially constructing elevator walls and the like for each floor, it is necessary to sequentially move the plate-like scaffolding to the upper floor within the elevator shaft and re-install it. However, in the elevator shaft, there may be obstacles and the like protruding toward the inside of the elevator shaft (for example, metal fittings for supporting the plate-like scaffolding), and the plate-like scaffolding moves upward. When doing so, it is easy for the scaffold to collide with the obstacles and the like, so it was difficult to move the plate-shaped scaffold upward and re-install it.

In view of the above-mentioned circumstances, the present invention provides a scaffold used for constructing an elevator shaft, which facilitates movement within the elevator shaft.
An object of the present invention is to provide a scaffold for a shaft that can easily construct an elevator shaft.

[0005]

That is, the first aspect of the present invention is to extend vertically by being surrounded by the shaft end surface (2e) of the slab (2) and the shaft wall (6). In a shaft scaffold (19) used when sequentially constructing the formed shaft (5) upwards, the existing shaft (5) is supported by a shaft wall (6) surrounding the shaft (5). A scaffolding body (20) that can be installed in a form that allows the scaffolding body (20) to have a plurality of body pieces (22A, 22B) arranged in parallel in a horizontal direction, and these body pieces (22A, 22B). Constituting body piece driving means (27) connected between these body pieces (22A, 22B) in such a manner that the installation width (W1) of the scaffold body (20) can be changed by approaching and separating in the horizontal direction. To be done.
A second invention of the present invention is, in the shaft scaffolding (19) of the first invention, an inner formwork installation member capable of installing an inner mold (10) for a shaft wall on the scaffold body (20). (26A, 26B, 26C) with the inner surface (6) of the shaft wall (6) to be constructed above the existing shaft (5)
A gable stop member (26) which is provided so as to be able to follow the b), and has gable stop molding surfaces (29a, 33) formed on the scaffold body (20).
A, 26B, 26C, 29) to the gable stop molding surface (29
a, 33) is provided so as to be able to face the shaft end face (2e) of the slab (2) to be constructed above the existing shaft (5). The third invention of the present invention is the shaft scaffold (19) of the second invention, wherein the inner formwork installation member (26A, 26B, 26C) and the end stop member (26A, 26B, 26C) are provided. The scaffold body (20) is provided so as to be movable in the horizontal direction. A fourth aspect of the present invention is the scaffold (19) for a shaft according to the first aspect, wherein the scaffold body (2) is used.
0) a scaffold plate member (36) is provided on the upper end side, and the scaffold plate member (36) is attached to the plurality of main body pieces (22A, 22B).
A plurality of partial scaffold members (37A, 37B) corresponding to
A connecting scaffold member (37C) having a shape capable of connecting between the partial scaffold members (37A, 37B), and the connecting scaffold member (37C) is at least one partial scaffold member (37).
It is characterized in that it can be separated and connected to B). Further, a fifth invention of the present invention is, in the shaft scaffold (19) of the second invention, the inner formwork installation member (26) provided in a direction in which the installation width (W1) is changed.
A) and the end stop members (26A, 29) are replaced by a plurality of installation member pieces (35A, 35B) and a plurality of end stop members (35A, 3B) corresponding to the plurality of body pieces (22A, 22B).
5B, 29A, 29B), and the connecting members (35C, 229C) between the plurality of installation member pieces (35A, 35B) and between the plurality of end stop member pieces (35A, 35B, 29A, 29B). , 41, 42) so that they can be separated and connected freely. The numbers in parentheses are for convenience of showing the corresponding elements in the drawings, and therefore the present description is not limited to the description in the drawings. The same applies to the following “action” column.

[0006]

In the first aspect of the present invention having the above-described structure, in order to construct the shaft wall (6) and the like sequentially for each floor, the shaft scaffold (19) is sequentially arranged in the shaft (5) in the upper floor. When the scaffold main body (20) is moved and re-installed, the plurality of main body pieces (22A, 22B) are driven to approach each other in the horizontal direction by the main body piece drive means (27) to narrow the installation width (W1) of the scaffold main body (20). Then move it. In the second invention of the present invention, the inner formwork installation members (26A, 26B, 2
6C), a shaft wall inner formwork (10) for the shaft wall (6) to be newly formed above the existing shaft wall (6) is attached to the shaft wall (6) via the scaffold body (20). It is installed so that it is supported by the inner surface (6b). Further, the gabled molding surface (29a, 33) of the gabled member (26A, 26B, 26C, 29) is installed on the shaft gabled surface (2e) of the slab (2) to be newly formed. In the third aspect of the present invention, the shaft scaffold (1
When moving 9) in the shaft (5) sequentially to the upper floor and re-installing it, the inner formwork installation members (26A, 26B, 26)
C) and the gable stop members (26A, 26B, 26C) are moved in the horizontal direction with respect to the scaffold body to provide a shaft scaffold (19).
Move it after reducing the overall size. In the fourth aspect of the present invention, first, the connecting scaffold member (37C) is separated from at least one of the partial scaffold members (36A, 36B), and the main body piece driving means (27) separates the plurality of main body pieces ( 22A, 22B) drive them closer to each other in the horizontal direction. Further, in a fifth aspect of the present invention, first, between the installation member pieces (35A, 35B) of the inner formwork installation member (26A) provided in a direction in which the installation width (W1) is narrowed, and the end stop member (26A, 29) Wiring member pieces (35A, 35)
(B, 29A, 29B), the plurality of main body pieces are driven to approach each other in the horizontal direction by the main body piece drive means.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a building to which a shaft scaffold according to the present invention is applied, and FIG. 2 is a schematic view showing an embodiment of an elevator shaft construction method, (a)
[Fig. 6] is a view showing a state in which an inner formwork for a new elevator wall and a formwork for a new slab are installed above the uppermost elevator wall being constructed. (B) is a figure which shows that the new slab was formed above the uppermost elevator wall under construction. (C) is a figure which shows a place where an outer mold for a new elevator wall is installed on the newly formed slab shown in (b). FIG. 3 is a diagram subsequent to FIG. 2, and is a schematic diagram showing an elevator shaft construction process. FIG. 3A shows a state where a new elevator wall is constructed above the uppermost elevator wall being constructed. FIG. (B) is a figure showing a place where an inner formwork for a new elevator wall is installed above the newly constructed elevator wall shown in (a). FIG. 4 is a cross-sectional view showing an inner formwork-installed scaffolding base, which is an example of a shaft scaffold according to the present invention, and FIG. 5 is a plan view of the inner formwork-installed scaffolding base shown in FIG. 4.
6 is a plan view showing the inner formwork installation scaffolding base shown in FIG. 4 with the inner formwork installed, and FIG. 7 is a view of the inner formwork installation scaffolding base shown in FIG. 4 as seen from below. is there.

A building 1 to which a shaft scaffold according to the present invention is applied is being erected on a ground 50 as shown in FIG. 1, and the building 1 includes a slab 2 forming a floor and a ceiling.
Have multiple. The slabs 2 are provided in the building 1 so as to form a plurality of floors, and each of the slabs 2 except the floor-side slab 2 on the first floor has a rectangular opening 2a in the vertical direction of the slab 2. It is provided so as to penetrate in the directions of arrows A and B in FIG. Therefore, each opening 2a is formed so as to be surrounded by the shaft end faces 2e, 2e, 2e, and 2e, and the shaft end faces 2e are formed by vertical planes. In addition, between the vertically adjacent slabs 2 and 2, the openings 2a and 2a provided in these slabs 2 and 2 are provided.
Are arranged corresponding to the directions of arrows A and B. In addition, between the vertically adjacent slabs 2, 2, a rectangular tubular elevator wall 6 extending in the directions of arrows A and B is provided.
2 are provided so as to connect the openings 2a and 2a provided in the slab 2. Inside the openings 2a and 2a of the slabs 2 and 2 and the elevator wall 6, an elevator shaft 5 that is a space for transportation is provided. It is formed so as to extend in the directions of arrows A and B. Further, an opening 6e is formed on one surface of the elevator wall 6 on each floor so as to penetrate the elevator wall 6 in the horizontal direction, and each opening 6e can enter and exit each floor formed by each slab 2. Is provided.

The inner formwork-installed scaffolding base 19 to which the shaft scaffolding according to the present invention is applied has a plurality of supporting metal members installed on the surface side of the elevator wall 6 in the existing elevator shaft 5, as shown in FIG. 21. The plurality of supporting metal pieces 21 are all arranged at the same height level, so that the upper surfaces of the plurality of supporting metal pieces 21 form the supporting surface S1 of the same height level. The scaffolding base 20 is placed and supported on the supporting surface S1 on the supporting hardware 21. As shown in FIGS. 5 and 7, the scaffolding base 20 includes two main body pieces 22 formed by assembling straight steel materials in a cross beam shape.
It is composed of A and 22B, and these body pieces 22A,
22B has substantially the same shape and has a horizontal rectangular plate-like outer shape. Further, the main body pieces 22A and 22B are both arranged to extend in the same direction, for example, to extend in the horizontal directions of arrows C and D in FIGS. 5 and 7, and the main body pieces 22A and 22B are They are arranged in parallel in the directions of arrows E and F in FIGS. 5 and 7, which are horizontal directions perpendicular to the directions of arrows C and D. Further, the main body pieces 22A and 22B are connected by a plurality (six in the figure) of expansion / contraction devices 25, as shown in FIGS. 4, 5, and 7, and each expansion / contraction device 25 has an arrow E,
It is composed of a rod 25a extending in the F direction and a cylinder 25b. Therefore, the expansion / contraction device 25 can be expanded / contracted in the directions of arrows E and F, and the main body pieces 22A and 22B are mutually arranged in the directions of arrows E and F.
It can be moved in and out of the F direction. Also, the main body piece 2
Between the 2A and 22B, there is provided a jack device 27 that can be driven to expand and contract in the directions of arrows E and F.
By the expansion and contraction driving of 7, the main body pieces 22A and 22B are driven to approach and separate from each other in the directions of arrows E and F. The width of the scaffolding base 20 in the directions of arrows E and F is the installation width W.
The size of the installation width W1 is changed by driving the main body pieces 22A and 22B toward and away from each other in the directions of arrows E and F. As an example of the jack device 27, FIG. 7 shows a pantograph type jack driven by a screw.
7 may be another type of jack. In addition, the plurality of support hardware 21 is a side portion of the scaffolding 20 on the arrow E side (main body piece 2
2A) and the side of the scaffolding base 20 on the side of arrow F (the side of the main body piece 22B on the side of arrow F) and the side of the scaffolding base 20 on the side of arrow C. It is not arranged at the side part or the position corresponding to the side part of the scaffolding base 20 on the arrow D side.

On the edge side of the scaffolding base 20 on the arrow D side, a gabled molding portion 29 is provided which extends from the end portion of the main body piece 22A on the arrow E side to the end portion of the main body piece 22B on the arrow F side. Thus, the gabled molding portion 29 has a gabled molding surface 29a which is a vertical plane. The gable stop molding surface 29a is in contact with the shaft gable surface 2e adjacent to the arrow D side of the opening 2a formed by the slab 2 in the elevator shaft 5. In addition, the gabled molding part 29 includes a molding part piece 29A corresponding to the edge D side edge of the body piece 22A, a molding part piece 29B corresponding to the arrow D side edge of the body piece 22B, and the body pieces 22A and 22B. The molded part pieces 29A and 29B are connected to each other, and are formed by the molded part pieces 29C and 29C.
B is fixed to the main body pieces 22A and 22B, respectively, but the molding part piece 29C is detachable from the molding part pieces 29A and 29B via bolts 42. In other words, the end stop molding part 29 provided in the direction of changing the installation width W1 is composed of molding part pieces 29A and 29B corresponding to the main body pieces 22A and 22B. The 29B can be separated and connected to each other via the molded member piece 29C and the bolt 42.
In addition, the inner formwork installation scaffolding 19 includes three inner formwork installation materials 26.
A, 26B, and 26C are respectively provided on the edge side of the scaffolding 20 on the arrow C side, the edge side on the arrow E side, and the edge side on the arrow F side. These inner formwork installation materials 26A, 26B,
26C is provided on the scaffolding base 20 in such a manner that it can project and retract in the directions of arrows C and D, arrows E and F, and arrows F and E, respectively.

That is, each inner formwork installation material 26A, 26B, 2
As shown in FIGS. 4 and 5, 6C has a plurality of slide members 30 made of an angle member or the like, and each slide member 30 has elongated adjustment holes 30a, 30a. Each slide member 30 has adjustment holes 30a, 30a.
Is fixed to the upper side of the main body piece 22A or the main body piece 22B by bolts and nuts through the adjustment holes 30a, 30
The horizontal position of the slide member 30 can be adjusted by projecting and retracting in the directions of arrow C, D, arrow E, F, arrow F, E, etc. by the length of a. Further, each of the inner formwork installation materials 26A, 26B, and 26C has a vertical plate-shaped root roll installation girder plate 31 which is fixed to the tips of the plurality of slide members 30. A gable stop molding surface 33, which is a vertical plane, is formed on each end curl installation gable stop plate 31, and these gable stop molding surfaces 33 are located inside the elevator shaft 5 on the arrow C side of the opening 2a formed by the slab 2. And the shaft gable surface 2 adjacent to the arrow E side and the arrow F side
e, 2e, and 2e, respectively. A horizontal neck wrapping surface 31a is formed at the upper end portion of each neck wrapping gable plate 31, and a neck wrapping angle 32 described later is attached to the neck wrapping installation surface 31a through bolts, nuts and the like. A plurality of possible root-wound engaging grooves 31b are provided. In addition,
The inner formwork installation materials 26A, 26B, and 26C project and retreat each slide member 30 in the horizontal direction, so that the inner roll installation surface 31a of the endwound installation end stop plate 31 and the end stop installation surface 3 are formed.
3 can be positioned at any position in the horizontal direction. Further, of the inner formwork installing materials 26A, 26B, and 26C, only the inner formwork installing material 26A is indicated by an arrow C of the main body piece 22A.
Installation material piece 35A corresponding to side edge, installation material piece 35B corresponding to arrow C side edge of body piece 22B, and body piece 22
Corresponding between A and 22B, the installation piece 35A, 35B
The installation material pieces 35A and 35B are connected to each other, and the installation material pieces 35A and 35B are fixed to the main body pieces 22A and 22B, respectively.
It is detachable from 35B via a bolt 41.
In other words, the inner formwork installation material 26A provided in the direction in which the installation width W1 is changed includes the main body pieces 22A and 22B.
The installation material pieces 35A and 35B corresponding to the installation material pieces 35A and 35B are installed between the installation material pieces 3A and 35B.
It is detachable and connectable via 5C and bolts 41.

On the other hand, a horizontal checker plate 36 is laid on the upper surface side of the scaffolding base 20. However, the checker plate 36 corresponds between the plate piece 37A that is the upper surface side portion of the main body piece 22A, the plate piece 37B that is the upper surface side portion of the main body piece 22B, and the main body pieces 22A and 22B. , 37B between the plate pieces 37C, 37B, and the plate piece 37C is detachable from the plate piece 37A or the plate piece 37B (or both of them). For example, as shown in FIG. 5, the plate piece 37C is hinged to the vicinity of the end of the plate piece 37B, and the plate pieces 37A and 37C are connected / separated by placing / lifting the plate piece 37C. I'm supposed to get it.

Further, as shown in FIG. 6, the outer mold 9 and the inner mold 10 used for constructing the elevator wall 6 are a face plate 11, a vertical end thickness 12, a lateral end thickness 13, and a root winding angle. The inner formwork 10 is formed of a plate shape corresponding to the size of the inner surface 6b of the elevator wall 6. That is, the outer mold 9 and the inner mold 10 have a face plate 11 made of a steel plate or the like,
Formed on the face plate 11 is a smooth molding surface 11a that can form the inner surface 6b of the elevator wall 6. Face plate 11
On the back surface (surface facing the molding surface 11a), a plurality of angle members 15 are provided so as to extend in the horizontal direction so that the face plate 11 does not bend, and these angle members 15 are provided in the horizontal direction. The angle member 15 has a large vertical end 1 extending in the vertical direction.
2 are provided along the face plate 11 in the horizontal direction at predetermined intervals. Further, the horizontal angle thick members 13 provided in the horizontal direction are provided with the horizontal edge thick members 13 extending in the horizontal direction through the angle members 16 extending in the vertical direction. The thick holes 12 are provided at predetermined intervals in the vertical direction. That is, the face plate 11 is reinforced by the angle members 15 and 16, the vertical end thickness 12 and the lateral end thickness 13 so as not to bend. Further, at the lower end of the face plate 11, as shown in FIG. 4, a neck wrap angle 32 made of an angle member is provided in a form of horizontally extending. Is also provided so as to project downward. In addition, holes (not shown) into which bolts and the like can be inserted are formed in the neck winding angle 32 provided on the inner mold 10 in the neck winding engaging groove 31b of the neck winding setting grate plate 31 of the inner frame setting scaffolding base 19. It is provided at the corresponding position.

Building 1, scaffolding 19 with inner formwork, outer formwork 9
Since the inner mold 10 and the like are configured as described above,
When building the elevator shaft 5 of the building 1 using the inner formwork-installed scaffolding base 19 to which the present invention is applied, for example,
As shown in FIGS. 1 and 2, the building 1 has a floor surface 2 of a slab 2 (2C) formed on the uppermost part of the slab 2 being constructed.
It is assumed that the uppermost elevator wall 6 (6C) among the elevator walls 6 being constructed is constructed on b. Therefore, first, as shown in FIG. 2A, a new slab 2 (2X) is provided above the uppermost slab 2 (2C) being constructed.
In order to form (a chain double-dashed line in the figure), a new elevator wall 6 (6X) shown in FIG. 1 is constructed in parallel with the work of installing a mold for a new slab 2 (2X) (not shown). Therefore, as shown in FIG. 2A, an inner formwork-installed scaffolding base 19 is provided on the inner surface 6b of the upper end 6d of the uppermost elevator wall 6 (6C) under construction. Opening 2a of new slab 2 (2X) to be formed above (6C)
(The two-dot chain line in the figure) is substantially closed, that is, the elevator shaft 5 is substantially closed by a crane or the like (not shown).

By the way, of the inner surface 6b of the upper end 6d of the uppermost elevator wall 6 (6C) under construction, the surface on the side where the opening 6e is formed in the elevator wall 6 and the surface on the side of the opening 6e are opposed. Two inner surfaces 6b, 6 that oppose each other
b, for example, as shown in FIG.
1 is fixedly installed in advance so that the upper surface of each supporting metal piece 21 forms a supporting surface S1 having the same height level. Therefore, the scaffolding table 19 for installing the inner formwork is installed by mounting the scaffolding table 20 on the supporting surface S1 of the supporting hardware 21. The inner formwork installation scaffolding 19 is installed via the jack device 27 so that the installation width W1 is the elevator shaft 5
The scaffolding 20 corresponds to the width of the
To be supported by. In addition, the inner formwork installation scaffolding 19
At the time of installation of the scaffolding 20, the gable-stop molding part 29 side of the scaffolding base 20 and the inner surface 6 on the side where the opening 6e is formed in the elevator wall 6
The shaft end face 2e is positioned at a position where the shaft end face 2e can be formed so as to face the shaft end face 2e of the slab 2 to be formed. In addition, the scaffolding base 20 is placed so that the scaffolding base 2
The upper surface of 0 is the floor surface 2b of the slab 2 to be newly formed.
It is supposed to correspond to the level of. In this way, a worker or the like can now board the work on the checker plate 36 of the scaffolding 20. Further, since the elevator shaft 5 is substantially closed by the scaffolding 20, the checker plate 36, etc., it is possible to prevent a worker or the like on the checker plate 36 from falling into the elevator shaft 5. Next, the inner formwork installation material 26A, 26
As shown in FIGS. 4 and 5, the slide members 30 of B and 26C are moved in the directions of arrows E, F and C, and as shown in FIG. 4 and FIG. The inner surface 6 of the elevator wall 6 (6C) as the gable stopper molding surface 33 of
The slab 2 (2X) is positioned so as to be opposed to the side b and to form each shaft corrugated surface 2e. At this time,
As shown in FIG. 4, the lower ends of the gable molding surfaces 33 of the inner formwork installation materials 26A, 26B, and 26C are joined to the inner surface 6b of the elevator wall 6 (6C), and the poured concrete leaks. prevent.

The plate piece 37C of the checker plate 36 is kept connected to the plate pieces 37A and 37B. The molding pieces 29A and 29B of the gabled molding 29 are connected to each other via the molding piece 29C and the bolts 42, and the installation material pieces 35A and 35B of the inner formwork installation material 26A.
Are connected to each other via the installation piece 35C and the bolt 41. In addition, the positioned inner formwork installation material 26A,
26B and 26C are scaffolding 20 with bolts, nuts, etc.
Fixed against. Then, the inner formwork installation materials 26A, 26
As shown in FIG. 5, B and 26C are installed on the scaffolding 20 along the inner surface 6b of the elevator wall 6 in a U-shape except for the surface on the side where the opening 6e is formed in the elevator wall 6. At the same time, the gabled molding 29 is installed on the surface of the elevator wall 6 where the opening 6e is formed. Therefore, these inner formwork installation materials 26A, 26B, 26C of the inner formwork installation scaffolding 19
The gabled molding surfaces 33, 33, 33 and the gabled molding surface 29a of the gabled molding portion 29 are newly formed above the uppermost elevator wall 6 (6C) under construction shown in FIGS. 1 and 2. It will play the role of an inner mold for gating that can form the shaft gable surfaces 2e, 2e, 2e, 2e that form the opening 2a of the power slab 2 (2X).

The inner formwork-installing scaffold 19 is thus installed, and the opening 2 of the slab 2 (2X) to be newly formed is formed.
scaffold capable of blocking a and opening 2a of the slab 2 (2X)
After the formation of the formwork for the shaft end faces 2e, 2e, 2e, 2e that form the inner surface of the inner formwork installation scaffold 19, the positioned inner formwork installation materials 26A, 26B, 26 of the inner formwork installation scaffold 19 are formed.
As shown in FIG. 4, the inner molds 10, 10 and 10 are erected on C. That is, each inner roll installation gable plate 31 of these inner formwork installation materials 26A, 26B, and 26C of the inner formwork installation scaffolding 19
As shown in FIG. 4, the respective end-wound angles 32 of the inner molds 10, 10 and 10 are placed on the end-wound installation surface 31a of FIG. Then, the neck-wound engaging groove 31b of each neck-wound installation gable plate 31 and the bolt hole (not shown) of each root-wound angle 32 are aligned with each other, and the neck-wound installation gable plate 31 and the root-wound angle 32 are bolted, Secure with nuts. Then, the inner formwork installation materials 26A, 26 of the inner formwork installation scaffolding 19
The inner formwork 10, 1 is placed on the root winding installation surface 31a of B, 26C.
0 and 10 are erected via the respective neck winding angles 32.

In this way, above the uppermost elevator wall 6 (6C) under construction, as shown in FIG. 2 (a),
Before the slab 2 (2X) to be newly formed is formed,
The inner formwork 10 can be erected for a new elevator wall 6 (6X) to be built above the elevator wall 6 (6C). That is, unlike the conventional case, the slab 2 to be formed is not waited for until the new slab 2 (2X) to be formed is formed until the inner formwork 10 is erected.
The inner formwork 10 can be erected in parallel with the construction work of (2X), and the work efficiency is improved.

Next, in order to form a slab 2 (2X) to be newly formed above the uppermost elevator wall 6 (6C) shown in FIGS. 1 and 2, a formwork (not shown) is formed. When the installation is completed and the concrete KR is placed as shown in FIG. 2 (b), the placed concrete KR is placed.
Is part of the inner formwork installation material 26A, 26B, 26C of the inner formwork installation scaffolding 19 shown in FIGS. 4 and 5,
Since 33, 33 and the grommet molding surface 29a of the grommet molding part 29 are brought into contact with each other, the opening 2a of the new slab 2 (2X) is formed above the elevator wall 6 (6C) without flowing into the elevator shaft 5. Shaft end face 2 to be formed
e, 2e, 2e, 2e will be formed. Next, the poured concrete KR solidifies and the new slab 2
When (2X) is formed, the newly formed slab 2 is formed.
On (2X), as shown in FIG. 2 (c) or 6, the outer mold 9 is erected so as to face the erected inner molds 10, 10, 10. Then, concrete KR is poured into the casting space 39 between the inner mold 10 and the outer mold 9 which is erected so as to face the inner mold 10.

Next, when the cast concrete KR is solidified, as shown in FIG.
(6X) is constructed, and the elevator shaft 5 has the end faces 2e, 2e, 2 for the shafts of the new slab 2 (2X).
In the form surrounded by e, 2e and the elevator wall 6 (6X),
It is constructed so as to extend above the elevator wall 6 (6C). Then, again on the inner surface 6b of the upper end portion 6d of the newly constructed elevator wall 6 (6X), as shown in FIG.
As shown in FIG. 3, the inner formwork-installed scaffolding base 19 has an opening 2a (two-dot chain line in the figure) of the slab 2 (2Y) to be formed above the newly uppermost elevator wall 6 (6X). Is installed so that the elevator shaft 5 is substantially closed, that is, the elevator shaft 5 is lifted and moved, and the new inner frame 10 for the elevator wall 6 is erected by the above-described procedure. Work on building a new elevator wall 6.

That is, above the uppermost elevator wall 6 under construction, the inner formwork-installing scaffold 19 is lifted and moved by one floor and installed, and the inner formwork is installed on the inner formwork-installing scaffold 19. 10 is erected, and when the slab 2 to be formed is formed above the uppermost elevator wall 6, the outer mold 9 is erected on the formed slab 2 and the inner molds 10 and 10 are erected. 10 is erected so as to be opposed to 10 and concrete is poured into the casting space 39 between the inner mold 10 and the outer mold 9 to construct a new elevator wall 6. As a result, the elevator shaft 5 is constructed in the building 1 so as to be surrounded by the new elevator wall 6 and extend above the uppermost elevator wall 6 being constructed, and finally,
In the building 1, the elevator shaft 5
It is constructed as a transportation space extending in the up-down direction (arrow A, B direction) in a form surrounded by the shaft end faces 2e, 2e, 2e, 2e and the elevator wall 6.

By the way, when the above-mentioned inner formwork installation scaffold 19 is hoisted and moved by one floor above the uppermost elevator wall 6 being constructed, the following procedure is carried out. That is, first, the plate piece 37C of the checker plate 36 is replaced with the plate piece 37C.
In a state of being separated from A, the bolt 42 is removed from the molding piece 29C of the gable molding 29, and the molding pieces 29A, 29
B to remove the molded part pieces 29A and 29B, remove the installation material piece 35C of the inner formwork installation material 26A from the installation material pieces 35A and 35B by removing the bolt 41, and install the installation material piece 35A,
35B is kept separated. Next, the inner formwork-installed scaffolding base 19 is lifted by a crane or the like (not shown), and the main body pieces 22A and 22B are brought close to each other via the jack device 27 to reduce the distance between the main body pieces 22A and 22B as much as possible.
As shown in FIG. 3A, the arrows E and F of the scaffolding platform 20 as a whole are provided.
The installation width W1 in the direction is made as narrow as possible. Plate piece 37C,
Since the molding portion piece 29C and the installation material piece 35C are removed, the operation of bringing the main body pieces 22A and 22B close to each other is smoothly performed. Further, inner formwork installation materials 26A, 26B, 26C
Is set in a retracted state as much as possible, and the width of the entire inner scaffold 19 for installing the inner frame in the directions C, D and the directions E, F is narrowed as much as possible. After that, the hoisting inner formwork-installed scaffold 19 is hoisted and moved by one floor. At the time of this movement, the width of the inner formwork setting scaffold 19 in the directions C, D and E, F, etc., especially the installation width W1 in the directions E, F is as narrow as possible, so the uppermost part under construction. Even if there are a plurality of supporting metal members 21 fixedly installed on the inner surface 6b of the upper end portion 6d of the elevator wall 6 and other obstacles, they do not interfere with the movement.

Then, the scaffolding base 20 is once moved over a plurality of metal supports 21 fixedly installed on the inner surface 6b of the upper end 6d of the uppermost elevator wall 6 being constructed. After passing, the movement is temporarily stopped and the jack device 27
The main body pieces 22A and 22B are retracted from each other through the space to adjust the space between the main body pieces 22A and 22B, and the installation width W1 of the scaffolding base 20 in the directions of arrows E and F is set to the elevator shaft 5
And the scaffolding 20 can be supported by a plurality of support hardware 21 fixedly installed on the inner surface 6b of the upper end 6d of the uppermost elevator wall 6 being constructed.
In addition, the plate piece 37C of the checker plate 36 is connected to the plate pieces 37A and 37B, and the molding part pieces 29A and 29B of the end stop molding part 29 are connected to each other through the molding part piece 29C and the bolt 42, and the inner mold is formed. Frame installation material 26A
The installation material pieces 35A and 35B are connected to each other via the installation material piece 35C and the bolt 41. Next, the supporting hardware 21 that has just passed by descending the platform 20 that is being lifted
The inner formwork-installed scaffold 19 is hoisted and moved by one floor so that the inner formwork-installed scaffolding 19 is installed on the support surface S1 on the upper surface side.

In the above-mentioned embodiment, the gable molding part 29 is provided so as to be fixed to the scaffolding 20, but the grommet molding surface 29a of the gable molding part 29 should be newly formed.
It is only necessary that the inner frame can be an inner frame for the gable stop of the shaft gable surface 2e that forms the opening 2a of the scaffold 20.
It may be movably provided with respect to. In addition, in the above-described embodiment, the neck wrapping installation grate plate 31 is attached to the neck wrapping installation surface 31.
Although the a and the gabled molding surface 33 are formed, the inner formwork 10 can be supported with respect to the scaffolding base 20 at any position, so that the root winding installation surface 31a and the gabled molding surface 33 are installed at different positions from each other. May be used by forming the root winding installation surface 31a and gable molding surface 33 on separate members,
The member on which the neck winding installation surface 31a and the gabled molding surface 33 are formed may be separated. Further, the inner formwork installation material 26
By providing A, 26B, and 26C so as to be movable in the horizontal direction with respect to the scaffolding 20, the inner formwork installation materials 26A and 26
B, 26C neck wrap installation gable stop plate 31 root wrap installation surface 31
Although a and the gabled molding surface 33 can be positioned at arbitrary positions, the root winding installation surface 31a and the gabled molding surface 33 are formed in correspondence with the shape of the shaft wall or the gable surface for the shaft to be constructed. If fixedly installed, the inner formwork installation material 26
It is not necessary to provide A, 26B, and 26C to the scaffolding base 20 so as to be movable in the horizontal direction.

[0025]

As described above, according to the first aspect of the present invention, the slab 2 and the like are surrounded by shaft end faces such as the shaft end face 2e of the slab and the shaft wall such as the elevator wall 6, In a scaffolding for a shaft used when sequentially constructing shafts such as an elevator shaft 5 formed by extending in the vertical direction upward, in a form in which a shaft wall surrounding the shaft is supported in an existing shaft. A scaffolding body 20 such as a scaffolding base 20 that can be installed, and the scaffolding body has a plurality of main body pieces 22A horizontally arranged in parallel;
22B and the like, and a jack device 27 connected between these body pieces in such a manner that the installation widths such as the installation width W1 of the scaffolding body can be changed by driving the main body pieces toward and away from each other in the horizontal direction. The shaft scaffold according to the present invention is used as a scaffold for shaft construction work in which the shaft is closed by appropriately setting the installation width of the scaffold body through the body piece driving means. Can be used. Further, in order to sequentially construct the shaft wall and the like for each floor, when the shaft scaffold according to the present invention is sequentially moved to the upper floor and re-installed in the shaft, a plurality of main body pieces are driven by the main body piece drive means. Since the scaffold body is moved close to the horizontal direction by driving the scaffold body in the horizontal direction to move the obstacle, an obstacle or the like protruding toward the inside of the shaft (for example, a supporting metal member 21 for supporting the scaffolding base 20). In the case where there is an obstacle, the scaffold body having a narrow installation width is less likely to hit the obstacle or the like. Therefore, it is easy to move the shaft scaffold upward and re-install it, and thus the shaft can be easily constructed.

A second aspect of the present invention is, in the shaft scaffold of the first aspect, an inner formwork installation material capable of installing an inner formwork for a shaft wall such as the inner formwork 10 on the scaffold body. Inner formwork installation members such as 26A, 26B, and 26C are to be constructed above the existing shaft, and the inner surface 6b of the shaft wall.
Such as inner mold installation materials 26A, 26B, 26C, and gable molding parts 29, which have gable molding surfaces 29a, 33, etc. formed on the scaffold body. In addition to the effect of the first invention, since the gabled member is provided in such a shape that the gabled surface can be opposed to the shaft gabled surface of the slab to be constructed above the existing shaft. , The scaffolding body provided so as to close the shaft on the existing shaft wall can be used as a scaffolding for preventing the shaft from falling, and the scaffolding body is newly added to the inner formwork installation member above the existing shaft wall. Since the shaft wall inner mold for the shaft wall to be formed can be installed in a form of being supported on the inner surface of the shaft wall via the scaffold body, in order to install the shaft wall inner mold, the shaft wall must be It just needs to be built, as in the past Without requiring slab for supporting the formwork, the work of installing the shaft wall in the mold,
It is possible to perform the slab construction work in parallel without waiting for the concrete cast in the slab formwork to solidify, thus improving work efficiency. Further, since the grommet molding surface of the grommet member serves as an inner mold for grommet of the shaft grommet of the slab to be newly formed, the inner mold for the shaft wall and the shaft of the slab. It is possible to simultaneously install an inner formwork for the gable stop on the gable face, and, as in the conventional case, an inner formwork for the gable stop for forming the shaft gable face of the slab formwork to be formed. The work efficiency is further improved because it is not necessary to install the inner formwork for the shaft wall after the removal. Further, in order to install the inner formwork for the shaft wall and the installation of the slab of the gabled molding surface of the gabled member to the gable surface for the shaft of the slab to be newly formed for each floor in order, the shaft scaffold according to the present invention is When sequentially moving to the upper floor in the shaft and re-installing it, move the main body piece driving means to move the plurality of main body pieces close to each other in the horizontal direction to narrow the installation width of the scaffold main body and move it. It can be easily re-installed. In other words, the work of sequentially constructing the shaft walls of the floors and the shaft end faces of the slabs of the floors for each floor and constructing the shafts sequentially upward can be efficiently and easily performed by using the shaft scaffold according to the present invention. .

A third aspect of the present invention is the shaft scaffold of the second aspect, wherein the inner formwork setting member and the girder stop member are provided movably in a horizontal direction with respect to the scaffold body. In addition to the effect of the second invention, even if the shape of the inner surface of the constructed shaft wall varies to some extent relative to the scaffold body, these inner formwork installation member and girder stop member are provided. By horizontally moving the scaffolding body with respect to the scaffold body, the inner formwork installation portion for the shaft of these inner formwork installation members and the end stop molding surface of the end stop member can be moved to any position in the horizontal direction. The inner formwork installation part for the shaft and the gabled molding surface can be easily positioned and installed by flexibly responding to variations in the shape of the constructed shaft wall. No hassle to install the parts. Further, in order to sequentially construct the shaft wall and the like for each floor, when the shaft scaffold according to the present invention is sequentially moved to the upper floor in the shaft and re-installed, the inner formwork setting member and the girder member are scaffolded. Since the size of the entire scaffolding for the shaft can be reduced by moving the shaft horizontally relative to the main body, the shaft scaffold can be moved even if there is an obstacle or the like protruding toward the inside of the shaft. It's getting harder. Therefore, it becomes easier to move the shaft scaffold upward and re-install it.

A fourth aspect of the present invention is the shaft scaffold of the first aspect, wherein a scaffold plate member such as a checker plate 36 is provided on the upper end side of the scaffold body, and the scaffold plate members are the plurality of scaffold plate members. Plate piece 3 corresponding to the main body piece
7A, 37B, and the like, and a plurality of partial scaffold members, and a connecting scaffold member such as a plate piece 37C having a shape capable of connecting between the partial scaffold members, the connecting scaffold member with respect to at least one partial scaffold member In addition to the effect of the first invention, the scaffolding for shafts according to the present invention makes the scaffolding even safer because it is detachable and connectable. When the scaffolding for a shaft according to the present invention is sequentially moved to the upper floor in the shaft and re-installed, when the installation width of the scaffold body is narrowed, first, the connecting scaffold member is separated from at least one partial scaffold member. In this case, since the plurality of main body pieces are driven to approach each other in the horizontal direction by the main body piece drive means, the connecting scaffolding member prevents the plurality of scaffolding members from moving toward each other as the plurality of main body pieces approach each other. Never. That is, in addition to the effect of the first invention, the operation of narrowing the installation width of the scaffold body can be smoothly performed, which is convenient.

A fifth aspect of the present invention is the shaft scaffold of the second aspect, wherein the inner formwork installation member and the end stop member are provided in the direction in which the installation width is changed. Installation material pieces 35A, 35 corresponding to the body piece
A plurality of installation member pieces such as B and installation material pieces 35A, 35B,
It is composed of a plurality of end stop member pieces such as the molding part pieces 29A and 29B, and the installation material piece 35C, the bolt 41, and the molding part piece 2 are provided between the plurality of installation member pieces and between the plurality of end stop member pieces.
In addition to the effect of the second aspect of the invention, the shaft scaffold according to the present invention is sequentially placed on the upper floor in the shaft in addition to the effect of the second aspect of the invention. When narrowing the installation width of the scaffold main body when moving and re-installing, etc., first, between the installation member pieces of the inner formwork installation member provided in the direction of narrowing the installation width and between the end members of the girder stop member. After the pieces are separated from each other, the plurality of body pieces are driven to approach each other in the horizontal direction by the body piece driving means. There is no obstruction to the other's operation. That is, the operation of narrowing the installation width of the scaffold body can be smoothly performed, which is convenient.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a building to which a shaft scaffold according to the present invention is applied.

FIG. 2 is a schematic view showing a process of constructing an elevator shaft, and (a) shows a new inner mold for an elevator wall and a new slab above the uppermost elevator wall under construction. It is a figure which shows the place which installed the formwork for.
(B) is a figure which shows that the new slab was formed above the uppermost elevator wall under construction. (C)
[Fig. 6] is a diagram showing a new outer wall form for an elevator wall installed on the newly formed slab shown in (b).

FIG. 3 is a view following FIG. 2 and is a schematic diagram showing a process of constructing an elevator shaft, and (a) shows a new elevator wall above the uppermost elevator wall being constructed. It is a figure which shows a place where it was constructed. (B) is (a)
It is a figure which shows the place which installed the inner formwork for new elevator walls above the newly constructed elevator wall shown in FIG.

FIG. 4 is a cross-sectional view showing an inner formwork-installed scaffolding base, which is an example of a shaft scaffolding according to the present invention.

FIG. 5 is a plan view of the scaffolding base with the inner formwork shown in FIG. 4.

6 is a plan view showing the inner formwork installed on the inner formwork installation scaffolding base shown in FIG. 4; FIG.

FIG. 7 is a view of the inner formwork-installed scaffolding base shown in FIG. 4 seen from below.

[Explanation of symbols]

 2 ... Slab 2e ... Shaft end face 5 ... Shaft (elevator shaft) 6 ... Shaft wall (elevator wall) 6b ... Inner surface 10 ... Shaft wall inner form (inner form) 19 ... Shaft Scaffolding (scaffolding table with internal formwork) 20 ... Scaffolding main body (scaffolding table) 22A ... Main body piece 22B ... Main body piece 26A .... ... Inner formwork installation member, gable stop member (inner formwork installation material) 26C ... Inner formwork installation member, gable stop member (inner formwork installation material) 27 ... Main body piece drive means (jack device) 29 ... Tsumame member (Tsumame molding part) 29a …… Tsumame molding surface 29A …… Tsumame member piece (molding piece) 29B …… Tsumame member piece (molding piece) 29C …… Connecting member (molding piece) 33 ...... Tsumame molding surface 35A ... Installation member piece, gabled member piece (installation material piece) 35B ... Installation member piece, end stop member piece (installation material piece) 35C ... Connection member (installation material piece) 36 ... Scaffolding plate member (checker plate) 37A ... Partial scaffolding member (plate piece) 37B ... Partial scaffolding member ( Plate piece) 37C ... Connection scaffold member (plate piece) 41 ... Connection member (bolt) 42 ... Connection member (bolt) W1 ... Installation width

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hidetaka Sugino 4-2, Kita 2jo Nishi, Chuo-ku, Sapporo, Hokkaido Sapporo Mitsui Building Annex Mitsui Construction Co., Ltd. Satsuhoro Branch

Claims (5)

[Claims] 1. An existing shaft in a scaffold for a shaft, which is used when sequentially constructing a shaft, which is surrounded by the end surface of the shaft of the slab for the shaft and the shaft wall and extends vertically, in the upward direction. Has a scaffolding body that can be installed in a manner to be supported by a shaft wall that surrounds the shaft, wherein the scaffolding body is a plurality of body pieces that are horizontally arranged in parallel, and these body pieces approach each other in the horizontal direction. A scaffold for a shaft composed of main body piece driving means connected between the main body pieces in such a manner that the installation width of the scaffold main body can be changed by driving them apart. 2. The scaffolding body is provided with an inner formwork installation member capable of installing an inner formwork for a shaft wall in such a manner as to be able to follow an inner surface of a shaft wall to be constructed above the existing shaft. A gable stop member with a gable stop molding surface formed on the main body,
The scaffold for shafts according to claim 1, wherein the gabled molding surface is provided so as to face the shaft gutter surface of the slab to be constructed above the existing shaft. 3. The scaffold for a shaft according to claim 2, wherein the inner formwork setting member and the gable stop member are provided so as to be movable in the horizontal direction with respect to the scaffold body. 4. A scaffolding plate member is provided on an upper end side of the scaffolding main body, and the scaffolding plate member has a shape capable of connecting a plurality of partial scaffolding members corresponding to the plurality of main body pieces and between the partial scaffolding members. The scaffold for shafts according to claim 1, wherein the scaffold is formed of a connecting scaffold member, and the connecting scaffold member is separable and connectable to at least one of the partial scaffold members. 5. The inner formwork installation member and the end stop member provided in the direction in which the installation width is changed are composed of a plurality of installation member pieces and a plurality of end stop member pieces corresponding to the plurality of main body pieces. The shaft scaffolding according to claim 2, wherein the plurality of installation member pieces and the plurality of end stop member pieces are separable and connectable via a connecting member.