JP3177735B2 - An erect scaffold used to reinforce the perimeter of existing buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erecting scaffold used for reinforcing an outer peripheral portion of an existing building.

[0002]

2. Description of the Related Art In seismic retrofitting and seismic control retrofitting of existing buildings by the method of reinforcing the perimeter, prior to constructing the reinforcement structure, the outer wall painting must be removed, the outer wall curtain wall must be removed and adjusted, and the outer columns and beams must be removed. Since there is a preparatory work such as preparation for placing an anchor with a floor member, an erecting scaffold is required over the front surface of the reinforcing structure.

[0003] Then, for the steel frame construction of the reinforcement structure,
All scaffolding must be removed. The reason is,
The distance between the building and the erection scaffold is small, and the number of anchor connections between the building and the erection scaffold is large.

[0004] Further, after a steel crane for a new steel frame reinforcement frame of a building is constructed with a construction crane, a new construction scaffold is installed outside the reinforcement frame to cope with the frame and finishing work after the steel frame construction. .

[0005]

As described above, the conventional scaffolds used to reinforce the outer peripheral portion of an existing building often require repeated repetitions of installation and removal, and the frame scaffold requires a lot of time and labor for assembly and removal. In addition, the construction cost will be huge.

In addition, it is conceivable to form a space for installing a new steel frame reinforcing structure in advance between the building and the construction scaffold, and to construct the construction scaffold, but this is difficult in terms of safety and construction efficiency. Or it becomes impossible and does nothing.

[0007] An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and as a scaffold for pre-construction of an external wall of an existing building, as a work scaffold when constructing a steel frame, and furthermore, as a scaffold after constructing a steel frame.
Construction scaffolding that can be used in common as a scaffold for finishing work, and that does not require two steps of scaffolding and paying off, and that can greatly reduce the cost of construction. Is to provide.

[0008]

Since the present invention SUMMARY OF], to attain the aforementioned object, the first, when the outside of the existing buildings provided novel reinforcing Plane such Retrofit Plane or Seismic reinforcement Plane, rack
It is necessary to establish a new reinforcement structure by connecting the pillars to the wall.
Attached along the outside of the existing building with a space between them, a vertical moving stage equipped with an elevating mechanism is provided on this erection column so as to be able to move up and down, and the vertical moving stage has a handrail in the longitudinal direction of the vertical moving stage. Attach a horizontal pipe with a square pipe through a clamp along the, and cross the joist with the square pipe over this horizontal rail, provide bolt holes in the horizontal rail and the joist as appropriate, fasten each other with bolts, The front end protrudes forward of the vertical movement stage, and an auxiliary stage formed by installing a scaffold at the front end of the joists arranged in parallel at appropriate intervals fills the gap between the vertical movement stage and the existing building.
The main point is that it is provided for the existing building.

[0009] Second, the gist of the invention is that the erection column is erected on a trolley.

According to the first aspect of the present invention, the vertically moving stage is moved up and down along the erection column, and a crane prepared separately is used when constructing a steel frame for a heavy-weight reinforcing frame. According to this moving stage, there is no restriction, and safety and construction efficiency are improved.

In particular, an auxiliary stage is provided before the steel frame is built, so that the space between the existing building and the moving stage is filled with the auxiliary stage, the outer wall painting is removed, the outer wall curtain wall is removed and adjusted, and the outer surface of the pillar is removed. The auxiliary stage can be used as a work scaffold for preparatory work such as preparation for anchoring with beams and floor members.

The moving stage can be moved to a predetermined level during steel frame construction and temporary bolting, and functions as a work stage. In addition, the work after the steel frame construction functions as a temporary scaffold, which eliminates the need for two steps of hanging and paying the scaffold, which is advantageous in terms of steps and costs.

[0013] Further, during the construction period, since the entire building does not serve as a scaffold, the working space inside the building does not become dark and does not give a feeling of oppression.

Also, the auxiliary stage can be easily assembled and removed.

Further, the ease of assembling the auxiliary stage is ensured, and the assembly and disassembly can be easily performed by fastening bolts.

According to the second aspect of the present invention, it is possible to easily move to a new place by using the bogie, and to reduce work loss time.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view showing an embodiment of an erecting scaffold used for reinforcing an outer peripheral portion of an existing building of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a side view of the same.

In the figure, reference numeral 1 denotes an erecting pillar, which is constructed by stacking up and down truss-structure units having a height of about 1.25 m as a mast, and providing a wall connection as described below.
A height of 00m can be obtained. The erection column 1 is provided with a rack 2 at one corner of a corner.

The erection column 1 is erected on a trolley 3 having wheels 4a and 4b. A center jack 5 and an outrigger jack 6 are provided for stable installation.
In the figure, 7 is a handle, and 8 is a level meter. The wheel 4a
Is a drive wheel provided with a traveling motor, and wheels 4b are steered wheels.

A vertically movable stage 13 of one layer, which is provided with a horizontal U-shaped handrail 10 removably arranged around the work floor 9 on the erected pillar 1, is provided to be able to move up and down freely.
Reference numeral 13 denotes a lifting motor 12 having an output shaft provided with a pinion 11 that meshes with the rack 2 of the erection column 1.

Although the erection scaffold of the present invention has been described above, as shown in FIGS. 6 and 7, a new reinforcing surface 15 such as a seismic reinforced surface or a seismic reinforced surface is provided outside the existing building 14. The erection column 1 is separated from the existing building 14 along the outside of the existing building 14 by a wall connection 16 as shown in FIG. And attach it.

Therefore, the vertical moving stage 13 attached to the erection column 1 is also separated from the existing building 14 by the space α, but the auxiliary stage 17 is detachably attached to the vertical moving stage 13 to fill the space α. To be provided.

The auxiliary stage 17 includes a vertically moving stage 13
Along the handrail 10 in the longitudinal direction, a round part of the clamp is fitted to a support of the handrail 10 through a round / square free clamp (not shown), and a corner part is fitted to a square pipe by a square pipe. A horizontal beam 18 is attached, and a joist 19 made of a similar square pipe is laid over the horizontal beam 18 so that its front end protrudes forward of the vertical movement stage, and a scaffold plate 22 is attached to the front end of these parallel joists 19 at appropriate intervals. Was formed.

As shown in FIG. 8, these cross rails 18 and joists 19
The auxiliary stage 17 can be easily assembled by providing bolt holes 20 at appropriate intervals in advance and fastening the bolts 21 to each other.

When the auxiliary stage 17 is provided, one handrail 10 may be removed for the entrance to the auxiliary stage 17, and a handrail or the like may be provided around the auxiliary stage 17 although not shown. It is possible.

In this way, prior to providing a new reinforcing surface 15 such as a seismic strengthening structure or a seismic control reinforcing surface outside the existing building 14, the pre-construction work of the existing building 14 (removal of outer wall painting, outer wall curtain wall, etc.) Removal, adjustment, outer peripheral columns, beams,
Preparation of anchoring with a floor member, etc.) is performed using the auxiliary stage 17. The vertical movement stage 13 is this auxiliary stage
You can move and stand up and down as needed for work while keeping the 17 extended.

After the completion of the preliminary work, the auxiliary stage
17 is removed from the vertical moving stage 13, and the vertical moving stage 13 is used as a work scaffold for the steel frame construction of the new reinforcing surface 15 as shown in FIG. Used as a work scaffold for finishing work.

[0028]

As described above, the erection scaffold used to reinforce the outer peripheral portion of an existing building according to the present invention is used as a scaffold for pre-construction of an outer wall of an existing building and as a work scaffold for steel frame construction.
Furthermore, it can be used in common as a scaffold for steel frame construction and finishing work, and it is efficient. Moreover, there is no need for the two steps of scaffolding and paying, and the cost and work costs are significant. Savings are possible.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an erecting scaffold used for reinforcing an outer peripheral portion of an existing building of the present invention.

FIG. 2 is a front view showing an embodiment of an erecting scaffold used for reinforcing an outer peripheral portion of an existing building according to the present invention.

FIG. 3 is a side view showing an embodiment of a erection scaffold used for reinforcing an outer peripheral portion of an existing building of the present invention.

FIG. 4 is a plan view showing a state where an auxiliary stage is removed.

FIG. 5 is a plan view of wall connection.

FIG. 6 is a front view of an outer peripheral part reinforcement work of an existing building.

FIG. 7 is a side view of an outer peripheral part reinforcement work of an existing building.

FIG. 8 is an explanatory diagram showing a component configuration of an auxiliary stage.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Installation pillar 2 ... Rack 3 ... Truck 4a, 4b ... Wheel 5 ... Center jack 6 ... Outrigger jack 7 ... Handle 8 ... Level gauge 9 ... Work floor 10 ... Handrail 11 ... Pinion 12 ... Elevating motor 13 ... Vertical movement stage 14 ... Existing building 15 ... New reinforcement structure 16 ... Wall connection 17 ... Auxiliary stage 18 ... Side rail 19 ... Joint 20 ... Bolt hole 21 ... Bolt 22 ... Scaffold plate

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshio Tamura 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Mitsuo Sakamoto 1-2-chome Moto-Akasaka, Minato-ku, Tokyo 7 Kashima Construction Co., Ltd. (72) Inventor Tomohiko Arita 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Kazuo Kurihara 1-1-5 Moto-Akasaka, Minato-ku, Tokyo Fuji Ink Building Kajima Mechatro Engineering Co., Ltd. (72) Inventor Toshio Hosoya 1-5-1, Moto-Akasaka, Minato-ku, Tokyo Fuji Ink Building Kajima Mechatro Engineering Co., Ltd. (72) Inventor Keiichi Daimon Minato-ku, Tokyo Former Akasaka 1-chome No. 1-5 Fuji Yin Building Kajima Mechatro Engineering Co., Ltd. (56) References JP-A-6-3368 23 (JP, A) Japanese Utility Model Hei 5-83183 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04G 1/20 E04G 5/06

Claims (2)

(57) [Claims] If the method according to claim 1] to the outside of the existing building providing a new reinforcement Plane, such as seismic reinforcement Plane or vibration control reinforcement Plane, erection post
Required to provide a new reinforcing surface by connecting
The in spaced apart so as lie mounted along the exterior of the existing building, provided with vertical movement stage having a lifting mechanism in the erection column vertically movably, the vertical movement stage, in the longitudinal direction of the handrail vertically moving stage Attach a horizontal crosspiece with a square pipe through a clamp along the crossbar, hang a joist with a square pipe over this horizontal crosspiece, provide appropriate bolt holes in the horizontal crosspiece and the joist, fasten each other with bolts, and Part is projected forward of the vertical movement stage, and an auxiliary stage is formed by installing a scaffold plate at the front end of these joists that are juxtaposed at appropriate intervals.
Fill the gap between the vertical movement stage and the existing building
Erection scaffolding used for the outer peripheral portion reinforcing existing buildings, characterized in that provided toward the existing building side. 2. The construction scaffold according to claim 1, wherein the construction pillar is erected on a trolley.