JP7038246B1 - Reinforcing bar RC structure regeneration method and regeneration structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a regenerated structure of a reinforced RC structure for reducing man-hours and costs for remodeling without dismantling the main structure of an existing building. SOLUTION: The method for regenerating a reinforced RC structure according to the present invention is a space required to form a plurality of unit rooms having a predetermined external size while maintaining a skeleton including columns and beams of the reinforced RC structure. It has a removal stage in which the structural part of the reinforced RC structure that becomes an obstacle is removed, and a unit room formation stage in which a plurality of unit rooms are formed in the space formed by the removal stage. A unit bathroom that is surrounded by a predetermined doorway and an inner wall and includes at least a bedroom and a toilet, and includes a combination in which the layout and interior of the bedroom and the unit bathroom are uniformly predetermined. [Selection diagram] Fig. 2

Description

The present invention relates to a method for regenerating a reinforced RC structure and a regenerated structure. More specifically, the present invention relates to a method and a regenerated structure for rebar RC structure to be refurbished as if the existing rebar RC structure is refurbished and refurbished as a new rebar RC structure.

Conventionally, in the construction of reinforced RC structures such as hotels, due to the deterioration of equipment and skeletons, the buildings may be dismantled and rebuilt to construct new buildings.
As a method of demolition of a building, a method of reconstructing while preventing dust and noise by securing a demolition work space and performing demolition work has been proposed.
However, the conventional method has a problem that the construction period is lengthened and the cost is high because a new building is constructed after the dismantling of the existing building is completed.

In Patent Document 1, a temporary wall covering the outer periphery of the existing structure is provided without dismantling the existing building, and at least a part of the structure is used as a reuse structure in the reconstruction work space surrounded by the temporary wall. The structure is remodeled, a new construction work space surrounded by a temporary wall is formed on the upper side, and the new construction work process is repeated to build at least a part of the structure of the new construction part in the new construction work space. A method of performing the new construction process and the process in order has been proposed.

Japanese Patent No. 6093665

In the above method, the present invention is made in view of the problem that man-hours and costs increase because a temporary wall is created and remodeling and new construction are repeated while shifting one layer at a time. The present invention is an existing one. It is an object of the present invention to provide a method and a regenerated structure of a reinforced RC structure for reducing man-hours and costs for renovation by utilizing the skeleton of an existing building without dismantling the main structural part of the building.

The method for regenerating a reinforcing bar RC structure according to the present invention made to achieve the above object is a method for regenerating an existing reinforcing bar RC structure, and maintains a skeleton including at least columns and beams of the reinforcing bar RC structure. In order to create the space required to form multiple unit rooms, the entire new room with the specified external size is considered as a unit room, and what should be removed is examined, and the removed part is 50% of the main structural part. At the stage of estimating so as not to exceed
The removal stage of removing a part of the reinforced RC structure that is an obstacle to secure the space required to form the plurality of unit rooms, and
It has a unit room forming step of forming the plurality of unit rooms in the space formed by the removal step.
The plurality of unit rooms are surrounded by a predetermined doorway and an inner wall, include at least a bedroom and a unit bathroom including a toilet, and the arrangement and interior of the bedroom and the unit bathroom are predeterminedly unified. It is characterized by including.

After the unit room formation stage or in parallel with the unit room formation stage, an exterior panel made of aluminum is attached to the outer wall of the reinforced RC structure, and the inside is a material having both fire resistance and heat insulation performance (including rock wool). Paste or spray. Where there is no outer wall of the skeleton, it is preferable to have a step of directly pasting or spraying a material (including rock wool) having both fire resistance and heat insulation performance on the inside of the exterior panel.

The unit room further includes a window frame of a predetermined size that opens to the outer wall of the reinforced RC structure at a predetermined position, and the unit room forming step is when the window frame is installed at the predetermined position. The existing window frame located in the opening area required for the installation of the window frame and the outer wall portion of the reinforced RC structure are removed, and the reinforced RC structure outside the opening area required for the installation of the window frame is removed. It is preferable to include a window frame mounting step for closing the opening of the outer wall.

The regenerated structure of the reinforced RC structure according to the present invention made to achieve the above object is a part of the structure that becomes an obstacle for installing a plurality of unit rooms of a predetermined external size inside the existing reinforced RC structure. Was newly formed in the space formed by removing the removed part so as not to exceed 50% of the main structural part, and newly attached to the outer wall of the existing reinforced RC structure. It has an exterior panel made of aluminum and a material that has both fire resistance and heat insulation inside, and the multiple unit rooms are surrounded by a predetermined doorway and inner wall, and have at least a bedroom and a unit bathroom including a toilet. It is characterized in that the arrangement and interior of the bedroom and the unit bathroom include a predetermined combination.

Since only the parts that are not necessary for installing a unit room with a unified configuration in advance are dismantled and removed, and the unit room is installed in the secured indoor space, dismantling and removal is the minimum necessary, and efficient repairs are carried out. It can be carried out. The finished product will be finished in a unified building with the same interior and exterior as a new construction.
If the rebar RC structure regeneration method of the present invention is used not only for one building but also for a plurality of buildings, the rebar RC structure can be regenerated into a building having the same configuration, so that the generation cost can be reduced as a whole and each building is unified. It will be a feeling.
Further, since the main structural part of the reinforcing bar RC structure and the finishing material such as the tile of the outer wall are not dismantled, excess waste material can be reduced, and the reinforcing bar RC structure can be regenerated at low cost, which is environmentally friendly.

It is a top view which shows the outline of one floor of a building before applying the method of regenerating the reinforcing bar RC structure by embodiment of this invention. It is a figure which shows the flow of the regeneration method of the reinforced RC structure by embodiment of this invention. It is a figure for studying and estimating the range to which the method of regenerating the reinforced RC structure by embodiment of this invention is applied, and the removed object. It is a figure which showed the typical structure of the unit room which applies the method of regenerating the reinforced RC structure by embodiment of this invention. It is a figure after removing unnecessary thing for applying the method of regenerating the reinforced RC structure by embodiment of this invention. It is a figure after the partition of the bathroom necessary for installing the unit room by applying the method of regenerating the reinforced RC structure by embodiment of this invention. It is a schematic plan view after the regeneration is completed by applying the regeneration method of the reinforced RC structure by embodiment of this invention. It is a figure which showed the completed outer wall for one layer after applying the method of regenerating the reinforced RC structure by embodiment of this invention and pasting an exterior panel.

Next, a specific example of the embodiment for carrying out the method for regenerating the reinforced RC structure according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing a schematic plane for one floor of an existing building 1 before applying the method for regenerating a reinforcing bar RC structure according to the embodiment of the present invention. Each room is composed of 6 rooms with partitions 10 to 15, and each room is equipped with a window frame 16 and an entrance / exit door 17.
Here, a case where an existing building having 6 rooms on one floor is regenerated into a new unit room having 3 rooms will be described as a typical example, but the present invention is not limited to this example.
The present invention is an obstacle to securing the space required to form a plurality of unit rooms having a predetermined external size while maintaining the skeleton including at least columns and beams of the existing reinforcing bar RC structure. It is a method of removing a part of the structure and regenerating the plurality of unit rooms in the formed space.
In the present invention, a unit of a room surrounded by a predetermined doorway and an inner wall and having at least a bedroom and a unit bathroom including a toilet is defined as a unit room.
Further, the unit room may include a combination in which the arrangement and interior of the bedroom and the unit bathroom are uniformly determined in advance.

FIG. 3 shows, in applying the method for regenerating a reinforcing bar RC structure according to an embodiment of the present invention, forming a plurality of unit rooms having a predetermined external size while maintaining a skeleton including columns and beams of the reinforcing bar RC structure. It is a diagram for examining and estimating what should be removed in order to create the space necessary for doing so.
The part surrounded by the dotted line represents the area of one unit room. In FIG. 3, it can be seen that it is necessary to remove the partitions 10, 11, 13, 15 and the window frame 16 and the doorway 17 in order to install the three unit rooms 20. If these are removed, the space required for installing the unit room 20 can be secured.
In addition, regarding the water area, the existing part will be removed and newly installed in consideration of the case where the existing part has a problem such as corrosion.
At the estimation stage, in order to quickly estimate what should be removed and speed up the design of the unit room, the design may be advanced using a laser dimension measuring instrument, a 3D laser scanner, or the like for measurement. As a result, necessary materials can be arranged quickly and the construction period can be shortened.
The unit room has basically a common shape, but it may be appropriately changed according to the existing frame such as a beam.
In the method for regenerating a reinforced RC structure according to the embodiment of the present invention, it is estimated that the removed portion does not exceed 50% of the main structural part so that the building confirmation application procedure by regeneration becomes unnecessary.

FIG. 4 is a diagram showing the configuration of the unit room 20. The unit room is surrounded by an entrance door 31 and an inner wall, and a bedroom equipped with a bed 23 and a unit bathroom including a bathtub 21 and a toilet 22 are installed in a bathroom partition 24, and further have a predetermined size. The window frame 30 is provided. The unit room 20 has a width, depth, and height having a predetermined outer shape so that it can be easily mass-produced in a factory. In one embodiment, the unit rooms 20 have the same external size, but the unit rooms 20 are arranged so that the unit bathrooms are adjacent to each other when they are arranged side by side. use.
A plurality of unit rooms 20 are formed in the space formed by the removal stage.

FIG. 5 shows a plan view after removing unnecessary objects in order to install the unit room, and shows partitions 10, 11, 13, 15 of FIG. 3, a window frame 16, an entrance door 17, a floor and an interior. Is removed, and only the concrete skeleton is shown. Further, the portion from which the existing window frame 16 has been removed is in an open state, and an opening 18 having a size required for attaching a new window frame is opened.

In FIG. 6, the bathroom partitions 24 to 26 required for installing the unit room by applying the method for regenerating the reinforced RC structure according to the embodiment of the present invention are additionally installed, and the partitions 12 and 14 are installed as necessary. It is a figure after the opening 18 of the new window frame necessary for the installation of a new window is opened in the wall on the window side which is reinforced.

FIG. 7 is a schematic plan view after the regeneration is completed by applying the regeneration method of the reinforced RC structure according to the embodiment of the present invention. A unit bathroom is installed in a room formed by partitions 24 to 26 of the installed bathroom to form a new bathroom. The new window frame 30 is fitted into the opening 18 of the new window frame, and the gap space 40 created between the opening from which the old window frame 16 has been removed and the new window frame is filled with a fireproof coating. The existing window frame is removed, the opening is closed with an aluminum exterior panel, and the inside is pasted or sprayed with a material (including rock wool) that has both fire resistance and blocking performance. At this time, at the same time, a material (including rock wool) having both fire resistance and blocking performance is attached or sprayed on the wall inside the room. After that, a board is attached on the fireproof coating, and an interior material 19 is attached to finish the unit room, so that an interior appearance similar to that of a new construction can be obtained.

Each of the plurality of unit rooms is surrounded by a predetermined entrance door and an inner wall, and has a predetermined combination of arrangement and interior of the bedroom and the unit bathroom. Therefore, since the entire building has a unified feeling and the composition is unified, it can be mass-produced with predetermined materials, so it is a low cost, but it is a reinforced RC structure that can be reconstructed into a building similar to a new building. It is a method of regenerating things.

FIG. 8 is a diagram showing a completed outer wall for one layer after applying the method for regenerating a reinforced RC structure according to the embodiment of the present invention and attaching an exterior panel. Regarding the regeneration of the outer wall portion, unnecessary protrusions and the like of the existing outer wall portion are removed so that the outer wall becomes a flat surface. An exterior panel 50 made of aluminum is attached onto this, and a material (including rock wool) having both fire resistance and heat insulation is attached or sprayed to the inside of the outer wall of the skeleton. Where there is no outer wall of the skeleton, a material (including rock wool) that has both fire resistance and heat insulation performance is directly attached or sprayed to the inside of the exterior panel. Since the window frame position of the room is determined for the exterior panel, in the example of FIG. 8, the panel for one room is the exterior panel 50-1, the exterior panel 50-2, the exterior panel 50-3, and the exterior panel 50. It is composed of a combination of -4. At this time, by using an exterior panel with the same color and outer shape, a sense of unity appears in the building. Further, when there are a plurality of buildings of similar groups, by using the same exterior panel 50, it is possible to easily recognize that the buildings are of the same group and a sense of unity is generated.

FIG. 2 is a diagram showing a flow of a method for regenerating a reinforced RC structure according to an embodiment of the present invention.
In step S1, as shown in FIG. 3, unnecessary materials to be removed are examined and estimated in order to form the unit room 20 which is a unit to be refurbished.
In step S2, as shown in FIG. 5, partitions 10, 11, 13, 15, window frames 16, doorways 17 and interiors unnecessary for forming the unit room 20 are removed, and only the concrete skeleton is in a state. And, in order to install a new window frame, an opening 18 of a size required for the new window frame is provided on the wall.
In step S3, as shown in FIG. 6, the bathroom partitions 24 to 26 and the unit bath necessary for forming the unit room 20 are installed, and the partitions 12 and 14 are reinforced.
In step S4, as shown in FIG. 7, a new unified window frame is installed, and the fireproof coating that fills the gap between the window frame and the wall is sprayed and the fireproof coating in the room is sprayed. After that, the board is pasted and the interior material 19 is pasted to finish.
On the other hand, with respect to the outer wall, in step S10, an estimate is made for attaching a common exterior panel in order to give a sense of unity to the outer wall.
In step S11, the unnecessary things that get in the way are removed from the existing outer wall for attaching the exterior panel.
In step S12, an exterior panel made of a material (including rock wool) having both fire resistance and heat insulation performance and aluminum is attached to the outer wall of concrete.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-described embodiments and is variously modified within the range not departing from the technical scope of the present invention. It is possible to do.

1 Existing building 10-15 Partition 16 Existing window frame 17 Doorway door 18 New window frame opening 19 Interior material 20 Unit room unit 21 Bath 22 Toilet 23 Bed 24-26 Unit room partition 30 New window frame 31 New doorway 30 New window frame 40 Gap space 50-1 to 50-4 Exterior panel

Claims (4)

It is a method of regenerating an existing reinforced RC structure.
At least the entire new room with a predetermined external size while maintaining the skeleton including columns and beams of the reinforced RC structure should be removed in order to create the space required to form multiple unit rooms. At the stage of examining kimono and estimating that the removed part does not exceed 50% for the main structural part,
The removal stage of removing a part of the reinforced RC structure that is an obstacle to secure the space required to form the plurality of unit rooms, and
It has a unit room forming step of forming the plurality of unit rooms in the space formed by the removal step.
The plurality of unit rooms are surrounded by a predetermined doorway and an inner wall, include at least a bedroom and a unit bathroom including a toilet, and the arrangement and interior of the bedroom and the unit bathroom are predeterminedly unified. A method for regenerating a reinforced RC structure, which comprises. After the unit room formation stage or in parallel with the unit room formation stage, an exterior panel made of aluminum is attached to the outer wall of the reinforcing bar RC structure, and a material (rock wool) having both fire resistance and heat insulation performance is attached to the inside of the outer wall of the skeleton. (Including) is pasted or sprayed , and the part without the outer wall of the skeleton is characterized by further having a stage of pasting or spraying a material (including rock wool) having both fire resistance and heat insulation performance directly inside the exterior panel. The method for regenerating a reinforcing bar RC structure according to claim 1. The unit room is further provided with a window frame of a predetermined size that opens into the outer wall of the reinforced RC structure at a predetermined position.
In the unit room forming stage, when the window frame is installed at the predetermined position, the outer wall portion of the reinforcing bar RC structure located in the opening area required for installing the window frame is removed, and the window frame is formed. The method for regenerating a reinforcing bar RC structure according to claim 1, further comprising a window frame mounting step of closing the opening of the outer wall of the reinforcing bar RC structure outside the opening area required for the installation of the reinforcing bar RC structure. Formed by removing a part of the structure that is an obstacle to installing multiple unit rooms of a predetermined external size inside the existing reinforced RC structure so that the removed part does not exceed 50% of the main structural part. With the plurality of unit rooms newly formed in the created space,
It has an exterior panel made of aluminum newly attached to the outer wall of an existing reinforced RC structure and a material that has both fire resistance and heat insulation performance.
The plurality of unit rooms are surrounded by a predetermined doorway and an inner wall, include at least a bedroom and a unit bathroom including a toilet, and the arrangement and interior of the bedroom and the unit bathroom are predeterminedly unified. A regenerated structure of a reinforced RC structure characterized by containing.

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