JP2022039171A - Splash prevention curing system - Google Patents

Abstract

To provide a splash prevention curing system that can reduce a weight of a roof truss and increase a taking-in/out port of a roof portion.SOLUTION: The splash prevention curing system includes: a construction elevator that is installed on both sides of a building to be demolished, consists of a guide rail and an elevating stand, and moves up and down by driving a gear that meshes with teeth provided on the guide rail with a motor; a curing scaffold that surrounds the construction elevator so that it can pass through, is installed on the front, back, left, and right sides of the building, and extends from the ground to a rooftop; soundproof panels that are provided on all sides of the outside of the curing scaffold; a roof portion that consists of eaves-shaped or upright roof trusses bent toward the inside of the building, in which legs of the roof trusses are connected to the construction elevator and move up and down; and a splash prevention net and sheet that cover the roof portion, in which a ceiling portion is a curtain that can be opened and closed.SELECTED DRAWING: Figure 1

Description

The present invention relates to a shatterproof curing system, and more specifically, when a building is dismantled from the rooftop side to the ground side with a heavy machine, a roof portion provided on the rooftop portion of the building and to which a shatterproof net and a sheet are attached. Regarding a shatterproof curing system that can quickly raise and lower.

Patent Document 1 discloses an anti-scattering device that prevents an object from scattering from a building being demolished. This shatterproof device includes a net holding portion that projects upward from the upper end of the building along the side surface of the building and a protective net that covers the net holding portion. The net holding portion is fixed to a braking device provided on the pedestal of the building, and by releasing the braking device, the rail holding portion can be slid in the vertical direction.

The present applicant has proposed a shatterproof curing system capable of supporting the roof portion with a construction elevator and rapidly raising and lowering the roof portion (Patent Document 2). A gable-shaped roof truss is used for the roof, and it is covered with a shatterproof net and a sheet.

Further improvement is required for this shatterproof curing system.
(A) For example, a roof portion made of a gable-shaped roof truss has a large weight, and a load is applied to a construction elevator. If the number of construction elevators installed is increased to support the weight, the space between the roof trusses will become narrower, and the entrance and exit of the roof will not be large. Then, it becomes difficult to move the crane in and out from the rooftop. Therefore, it is desired to reduce the weight of the roof portion.
(B) For construction elevators, the roof is often lowered to the roof for maintenance of the roof. Therefore, the curing scaffolding near the upper end of the construction elevator has been removed for several steps. As a result, the worker cannot pass through the curing scaffold in the left-right direction. Although it is possible to frequently remove and install the curing scaffolding near the upper end of the construction elevator, it is desirable to be able to raise and lower the construction elevator without such an operation.

Japanese Unexamined Patent Publication No. 2011-017230 Japanese Unexamined Patent Publication No. 2019-167913

An object of the present invention is to provide (1) a shatterproof curing system capable of reducing the weight of a roof truss and increasing the entrance / exit of a roof portion. (2) Another object of the present invention is to provide a shatterproof curing system capable of raising and lowering a construction elevator without removing the curing scaffold.

The shatterproof curing system according to the present invention is installed on both sides of the building to be dismantled, and consists of a guide rail and an elevating stand. A curing scaffold extending from the ground to the roof, soundproof panels provided on all outer sides of the curing scaffold, and inside the building, which are provided on the front, rear, left and right sides of the building so as to pass through the construction elevator. It consists of a roof truss that is bent toward the roof, and the legs of the roof truss cover the roof part connected to the construction elevator and the roof part, and the ceiling part can be opened and closed. It is characterized by being provided with a shatterproof net and a sheet.

The other shatterproof curing system according to the present invention is installed on both sides of the building to be dismantled, and consists of two guide rails and an elevating stand that is supported by the two guide rails and elevates and elevates. There are two motors that drive gears that mesh with the teeth of each guide rail, a construction elevator provided with a roof receiving truss, and the construction elevator that is passably surrounded by the front, rear, left, and right sides of the building. It consists of a curing scaffold extending from the ground to the roof, soundproof panels provided on all outer sides of the curing scaffold, and a roof truss, and the legs of the roof truss serve as an elevating stand for the construction elevator. It is characterized by being provided with a roof portion connected to the provided roof receiving truss, and a shatterproof net and a sheet having a curtain structure that covers the roof portion and can open and close the ceiling portion.

According to the shatterproof curing system according to the present invention
(1) Since the roof part is composed of eaves type or upright type roof trusses, the weight of the roof part can be reduced as compared with the gable type roof trusses. The eaves-type or upright-type roof truss does not span the upper surface of the building, so it is short in length and easy to handle.
(2) Since the roof portion is composed of eaves-shaped or upright roof trusses, a large entrance / exit can be formed in the ceiling portion of the roof portion. The large loading / unloading port is advantageous for loading heavy machinery and loading waste with a crane.

According to other shatterproof curing systems according to the present invention
(1) Since two guide rails with teeth are used for the construction elevator, the load of the roof truss can be dispersed and stable ascent and descent is possible.
(2) The two guide rails of the construction elevator can make the elevating platform elongated in the left-right direction, so although it occupies a part of the depth side of the curing scaffold, it passes so as not to block the left-right direction of the curing scaffold. Can be possible. Therefore, it is possible to save the trouble of removing the plate of the curing scaffold when raising and lowering the elevating stand. In other words, the trouble of removing the plate of the curing scaffold can be saved by raising and lowering the roof.
(3) Since the roof receiving truss is provided on the elevating stand of the construction elevator, the legs of the roof truss can be shortened by the height thereof, and the weight of the roof can be reduced.

It is a structural perspective view of the roof part of the shatterproof curing system by this invention. It is a figure which shows the eaves type roof truss and the upright type roof truss. It is a figure of the shatterproof net and the sheet attached to the eaves-shaped roof truss. It is a front view of the building to which the shatterproof curing system of this invention is applied. It is a right side view of the building of FIG. FIG. 4 is a cross-sectional view taken along the line aa of FIG. It is a perspective view of a curing scaffold and a construction elevator as seen from the building side. It is a perspective view of the curing scaffolding and the construction elevator as seen from the outside of the building. It is a perspective view of the curing scaffolding and the construction elevator as seen from the building side, and is a perspective view when the elevating stand is lowered. It is explanatory drawing of the curtain which opens and closes the entrance of a roof part.

Hereinafter, the shatterproof curing system of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a structural perspective view of the roof portion 8 of the shatterproof curing system according to the present invention. As an example, five eaves-shaped roof trusses 2 are used on the front side of the building to be demolished, and five eaves-shaped roof trusses 2 are used on the rear side. The roof portion 8 is configured by connecting eaves-shaped roof trusses 2 to each other with beams 9 and horizontal joints 31 and providing braces 17 to these. Since the roof truss 2 is connected to the construction elevator, the width of installation is flexible and can be adjusted to the width of the building to be demolished.

FIG. 2 is a diagram showing an eaves-shaped roof truss 2 and an upright roof truss 2'. (A) is an eaves-shaped roof truss 2, which is bent at an obtuse angle toward the inside of the building. (B) is an upright roof truss 2', and such a shape can also be used. The upright roof truss 2'can form a large entrance / exit in the center of the roof portion 8. The length L of the legs of the roof portion 8 is determined in consideration of the height of the heavy machinery and the protruding length from the installation stand of the construction elevator.

FIG. 3 is a diagram of a shatterproof net and a sheet 1 attached to the eaves-shaped roof truss 2. The eaves-shaped roof truss 2 has a shape bent toward the inside of the building, and a plurality of short members are connected by a joint 30. The roof portion 8 has a sheet 1b for preventing dust scattering on the upper side of the eaves-shaped roof truss 2, and a net 1a for preventing debris from popping out on the lower side of the eaves-shaped roof truss 2. The shatterproof net and the sheet 1 are not composed of two sheets, but may be composed of one sheet as long as they are tough and can prevent dust from scattering. The same applies to the shatterproof net and the sheet 1 of the upright roof truss 2', so the illustration is omitted.

FIG. 4 is a front view of a building to which the shatterproof curing system 100 of the present invention is applied. In this example, the building 50 to be demolished is 11 stories high, and the distance from the ground to the roof (RFL) is about 45 m. The front is on the south side, and five construction elevators 3 are erected at intervals of about 10 m. Five construction elevators 3 will also be erected on the north side. The construction elevator 3 includes two guide rails 6 on each side extending from the ground to the rooftop, and an elevating stand 11 mounted on the two guide rails 6 to move up and down. Curing scaffolds 5 extending from the ground toward the roof are provided on the front, rear, left and right sides of the building 50. A rectangular soundproof panel 4 is attached to all the outer side surfaces of the curing scaffold so as to cover the building 50 so that sound does not leak to the outside. The construction elevator 3 is attached to the inside of the soundproof panel 4 and cannot be seen from the outside.

As shown in FIG. 4, the roof portion 8 of the shatterproof curing system 100 is provided on the rooftop portion of the building 50. In the embodiment of FIG. 4, an eaves-shaped roof truss 2 was used for the roof portion 8. The legs of the eaves-shaped roof truss 2 are connected to the elevating stand 11 of the construction elevator 3. The roof portion 8 is projected upward from the rooftop in order to put the heavy equipment 7 on the rooftop. The shatterproof net and the sheet 1 are attached to the eaves-shaped roof truss 2 and cover the front, rear, left and right side surfaces and the upper surface of the roof portion 8. The shatterproof net and sheet 1 prevent debris and tension bolts from scattering to the outside, have a mesh size of 1 to 3 cm, and have a strong impact-resistant net 1a. It is composed of a sheet 1b having a soundproofing and waterproofing (rain) effect. The roof portion 8 carries the members to the rooftop of the building 50 by a crane and assembles them on the rooftop.

FIG. 5 is a left side view of the building 50 of FIG. The roof portion 8 is covered with a shatterproof net and a sheet 1. Since the eaves-shaped roof truss 2 has a shape bent toward the inside of the building 50, the corner portion of the upper end of the roof portion 8 has an angle.

FIG. 6 is a cross-sectional view taken along the line aa of FIG. The heavy machine 7 is lifted by a crane and thrown onto the rooftop through the shatterproof net and the loading / unloading port 15 of the sheet 1. The roof portion 8 has a height H of about 10 m from the roof. As shown by the dotted line, when the demolition of the building 50 proceeds from the roof to the 8th floor, the upper part of the roof portion 8 descends to the position of the 11th floor. Ten elevators 3 for construction work are centrally controlled and lowered at the same time. Since the shatterproof net and the ceiling portion of the sheet 1 have a curtain structure, they can be opened and closed. That is, the entrance / exit 15 is configured to be openable / closable. After the eaves-shaped roof truss 2 is attached to the construction elevator 3, the construction elevator 3 is lowered to attach the shatterproof net and the sheet 1 on the roof of the building.

FIG. 7 is a perspective view of the curing scaffolding 5 and the construction elevator 3 as viewed from the building side. The curing scaffold 5 composed of the plate 19 and the brace 17 is connected and assembled to the outer wall of the building to be demolished. The width of the place where the construction elevator 3 is provided becomes narrow, but since the plate 19 is hung in the left-right direction, it is possible to pass through and a worker can pass through. The construction elevator 3 is provided with two guide rails 6, and the elevating platform 11 is supported so as to be able to move up and down. The guide rails 6 and 6 are long racks 22 having teeth formed on them, and are driven by motors 21 and 21 to rotate gears (not shown), mesh with the racks 22 and 22, and move up and down. The mounting table 11 is raised and lowered. A roof receiving truss 12 is erected on the elevating stand 11, and the legs of the roof truss 2 of the roof portion 8 of FIG. 1 are connected to the head thereof. The load of the roof truss 2 is distributed to the guide rails 6 and 6.

FIG. 8 is a perspective view of the curing scaffold 5 and the construction elevator 3 as viewed from the outside of the building. In FIG. 8, the soundproof panel 4 provided on the outside is not shown. Even if the construction elevator 3 is raised and lowered, it does not come into contact with the plate 19 of the curing scaffold 5. The legs of the roof trusses 2 and 2'of FIG. 2 are connected to the head of the roof receiving truss 12 provided on the elevating stand 11. The roof trusses 2 and 2'are connected to the building 50 to be demolished for safety so that it will not be hit by strong winds, and the demolishing of the building 50 will proceed. Since the roof receiving truss 12 has a form in which the legs of the roof trusses 2 and 2'are extended, if the elevating platform 11 is raised to the upper ends of the guide rails 6 and 6, the roof portion 8 can be raised from the roof of the building 50. It can be lifted higher than the height of roof trusses 2 and 2'.

FIG. 9 is a perspective view of the curing scaffolding 5 and the construction elevator 3 as viewed from the building side, and is a perspective view when the elevating installation table 11 is lowered. Even if the construction elevator 3 is lowered, it does not come into contact with the plate 19 of the curing scaffold 5. Since the legs of the roof truss 2 have the same depth and width as the roof truss 12, the roof portion 8 can be lowered to the bent portion of the roof truss 2. This is convenient when the shatterproof net of the roof portion 8 and the sheet 1 are maintained on the roof of a building. If the building 50 is demolished, the construction elevator 3 will be lowered as shown in FIG. The upper part of the curing scaffold 5 and the upper parts of the guide rails 6 and 6 are subsequently disassembled. Although the construction elevator 3 is shown in FIG. 9 so as to be attached to the scaffolding 2, it may be connected to the outer wall 16 of the building 50 for safety.

In FIG. 7, the roof receiving truss 12 is provided on the elevating stand 11, but the legs of the roof truss 2 may be directly connected to the upper surface of the elevating stand 11 without providing the roof receiving truss 12. In that case, the legs of the roof truss 2 have a height that protrudes from the roof of the building. In FIG. 7, the construction elevator 3 supports the elevating installation table 11 with two guide rails 6 so as to be able to move up and down. It may be supported so as to be able to move up and down. Although it depends on the load of the roof portion 8, one guide rail 6 can support the elevating installation base 11.

FIG. 10 is an explanatory view of a curtain that opens and closes the entrance / exit 15 of the roof portion 8. FIG. 10 is a view corresponding to a plan view of the building 50. On the left side of FIG. 10, a wire 28 for moving the curtain 23 is provided. Since the entrance / exit 15 is opened / closed by the curtain 23, the roof portion 8 is opened so that the ceiling portion becomes the entrance / exit 15. A shatterproof net and a sheet 1 are also attached around the take-in / out port 15. It is assumed that eaves-shaped roof truss 2 is installed in the surrounding area. In this embodiment, the curtain 23 is the same as the shatterproof net and the sheet 1, and is composed of the net 1a and the sheet 1b. Slide rails 24 and 24 are provided on both the left and right sides of the entrance / exit 15, and a plurality of runners 25 are slidably mounted. The runner 25 moves the curtain 23 composed of the shatterproof net and the sheet 1, and opens and closes the entrance / exit 15 by opening and closing the curtain 23.

As shown in FIG. 10, for opening and closing, the left and right pulleys 27 and 27 on the front side are rotated by the net opening and closing motor 26, and the left and right pulleys 27 and 27 on the rear side are also rotated via the wire 28. The piece 29 of the wire 28 slides the leading runner 25. As shown in the figure on the left side of FIG. 10, when the net opening / closing motor 26 is rotated to one side, the wire 28 is rotated, one curtain 23 (1b) is contracted rearward, and the other curtain 23 (1a) is moved. It is shrunk forward and the entrance / exit 15 opens. When the motor 26 is rotated to the other side, one curtain 23 (1b) is pulled out forward, the other curtain 23 (1a) is pulled out backward, and the entrance / exit 15 is closed.

According to the present invention, since the roof portion is composed of the eaves-shaped roof truss, the weight of the roof portion can be reduced, and a wide entrance / exit can be formed in the roof portion, which is suitable as an easy-to-use anti-scattering curing system. Is.

1 Anti-scattering net and sheet 1a Net 1b Sheet 2 (Eaves type) roof truss 2'(Upright type) roof truss 3 Construction elevator 4 Soundproof panel 5 Curing scaffolding 6 Guide rail 7 Heavy machine 8 Roof part 9 Beam 11 Lifting Stand 12 Roof receiving truss 15 Entrance / exit 17 Streaks 19 Plate 21 Motor 22 Rack 23 Curtain 24 Slide rail 25 Runner 26 Net opening / closing motor 27 Pulley 28 Wire 29 Piece 30 Joint 31 Horizontal connection 50 Building 100 Scaffolding prevention training system

Claims (2)

A construction elevator that is installed on both sides of the building to be demolished and consists of a guide rail and an elevating stand.
A curing scaffold that surrounds the construction elevator so that it can pass through, is provided on the front, back, left, and right sides of the building, and extends from the ground to the rooftop.
Soundproof panels provided on all outer sides of the curing scaffold,
It consists of an eaves-shaped or upright roof truss that bends toward the inside of the building, and the legs of the roof truss are connected to the construction elevator.
A shatterproof curing system characterized in that a shatterproof net and a sheet covering the roof portion and having a ceiling portion that can be opened and closed are provided. It consists of two guide rails installed on both sides of the building to be dismantled, and an elevating platform that is supported by the two guide rails and moves up and down. Two motors to drive the gears, a construction elevator equipped with a roof receiving truss,
A curing scaffold that surrounds the construction elevator so that it can pass through, is provided on the front, back, left, and right sides of the building, and extends from the ground to the rooftop.
Soundproof panels provided on all outer sides of the curing scaffold,
The roof truss is composed of a roof truss, and the legs of the roof truss are connected to the roof receiving truss provided on the elevating stand of the construction elevator.
A shatterproof curing system characterized in that a shatterproof net and a sheet covering the roof portion and having a ceiling portion that can be opened and closed are provided.

Images