JP2014201927A - Reconstruction method for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reconstruction method for a building, which can improve amenity of a dwelling space by providing an open ceiling space.SOLUTION: A building 1 has a living room R11 that is provided on a predetermined story, and a first nursery R21 that is provided on an upper story on the predetermined story and above the living room R11 and that faces an outer peripheral part of the building 1. A reconstruction method for the building 1 includes a step of removing a part of a floor 22 of a second story to provide an open ceiling space Z that makes the first nursery R21 communicate with the living room R11.

Description

  The present invention relates to a method for rebuilding a building.

  As a detached house that assumes the residence of a family with a standard structure (generally two couples and two children in total), the entrance, living room, kitchen, canteen, spare room on the first floor (predetermined floor), and There is a two-story house with a water area and three private rooms (the couple's master bedroom and two children's rooms) on the second floor (upper floor). In such a house, after the independence of the two children, the two-story private room (children's room) on the second floor, which is favorable in terms of lighting, is not used much, and living in the living room on the first floor, which is disadvantageous in terms of lighting. Often continue.

  In addition, it is assumed that the private room on the second floor, which has become empty, is used as a study or hobby room. In such a case, one of the couple is confined in a private room on the 2nd floor, which causes problems such as difficulty in communication and increased loneliness. For example, Patent Document 1 describes that an open space is provided above the living room by renovation, thereby enhancing the sense of unity between the first floor and the second floor.

JP 2008-133651 A

  In the building described in Patent Document 1, an open space is provided in the center of the building so that the living room is open. However, even if the open space is provided at such a position, the daylighting of the living room is improved. In addition, the private rooms on the second floor remain shielded from the living room, and the atrium space does not contribute to the improvement of the comfort of the living space.

  Then, an object of this invention is to provide the reconstruction method of the building which can improve the comfort of living space by providing a colonnade space.

  A building renovation method according to one aspect of the present invention includes a living room provided on a predetermined floor, and a first upper-floor private room provided on the upper floor of the predetermined floor and above the living room and facing the outer periphery of the building. A method for renovating a building, including a step of removing a part of the floor on the upper floor and making the first upper-floor private room an atrium space communicating with the living room.

  In this method, the first upper floor private room becomes an atrium space communicating with the living room by removing a part of the upper floor. Since the first upper floor private room faces the outer periphery of the building, the atrium space formed by the process of removing a part of the upper floor also faces the outer periphery of the building. For this reason, the light from the existing daylighting window of the first upper-floor private room or the daylighting window newly provided on the outer peripheral wall of the building can be guided to the living room through the atrium, and the living room is bright and open. It can be. Thereby, the comfort of the living space of a building can be improved.

  The method for renovating the building may further include a step of installing a daylighting window having a larger height than the existing daylighting window provided in the first upper-floor private room in the first upper-floor private room. In this case, daylighting can be more effectively performed by making the daylighting window large in height.

  The building has a second upper-floor private room adjacent to the first upper-floor private room, and the building renovation method removes the partition wall that separates the second upper-floor private room from the first upper-floor private room. The method may further include a step of communicating the second upper-floor private room with the atrium space. In this case, the second upper-floor private room and the living room can be connected appropriately, and the people in the living room and the person in the second upper-floor private room maintain their independence while feeling mutual attention. be able to.

  The building has a spare room on the predetermined floor and a main bedroom on the upper floor.The rebuilding method of the building is to convert the spare room on the predetermined floor to a new master bedroom and to change the main bedroom on the upper floor to a new one. It may further include a step of forming a preliminary chamber. In this case, rooms necessary for daily life are arranged on the predetermined floor, and normal life can be completed on one floor.

  In the step of removing a part of the upper floor, the floor may be removed while leaving a horizontal brace installed on a horizontal plane along the lower surface of the upper floor. In this case, since the existing structural member is not modified, the safety of the building structure can be maintained.

  In the step of removing a part of the upper floor, the floor may be removed while leaving the beam located in the area where the upper floor is removed and at the level of the upper floor. In this case, since the existing structural member is not modified, the safety of the building structure can be maintained.

  The upper floor may be constituted by a plurality of lightweight cellular concrete panels placed on a beam installed at the floor height of the upper floor and fixed with joint mortar. In this case, the floor can be easily removed simply by scraping the joint mortar.

  The building remodeling method may further include a step of installing a solar power generation device on the roof of the building. In this case, the increase in the load due to the photovoltaic power generation apparatus is offset by the load on the floor on the upper floor and the decrease in the load loaded on the floor, which makes it easy to ensure the safety of the building structure.

  According to the present invention, the comfort of the living space can be improved by providing the atrium space.

It is a top view which shows the floor plan of the 1st floor before reconstruction of the building which concerns on one Embodiment. It is a top view which shows the floor plan of the 2nd floor before the reconstruction of the building which concerns on one Embodiment. It is sectional drawing along the III-III line of FIG. It is a top view which shows the brace position provided in the 1st floor after the reconstruction of the building which concerns on one Embodiment. It is a top view which shows the brace position provided in the 2nd floor after the reconstruction of the building which concerns on one Embodiment. It is a top view which shows the floor structure of the 2nd floor before reconstruction of the building which concerns on one Embodiment. It is a top view which shows the floor plan of the 1st floor after the reconstruction of the building which concerns on one Embodiment. It is a top view which shows the floor plan of the 2nd floor after the reconstruction of the building which concerns on one Embodiment. It is a top view which shows the floor structure of the 2nd floor after the reconstruction of the building which concerns on one Embodiment. It is a figure which shows a mode that the atrium space was looked up from LDK of the 1st floor after renovation of the building which concerns on one Embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  In this embodiment, the floor plan of a building is changed by renovation. First, the structure of the building before renovation will be described. As shown in FIGS. 1-6, the building 1 is a detached house which consists of a two-story steel frame. The building 1 has a structural frame 2 and a roof supported by the structural frame 2. As shown in FIGS. 3 to 5, the structural frame 2 includes a plurality of through-pillars 11 rising from the foundation 10, and a large beam (a large beam 12 having a floor height of the second floor and a second floor of the second floor) installed between the adjacent through-pillars 11. A large beam with a ceiling height), a small beam 13 (see FIG. 6) spanned between the large beams 12, and a small beam spanned between the large beams with a ceiling height on the second floor.

  The foundation 10 is an RC (steel reinforced concrete) cloth foundation formed in a lattice shape along an orthogonal street. This street is set along two orthogonal directions at an interval that is an integral multiple of a predetermined planar module (reference unit) dimension. The through pillar 11 is erected on the intersection of the foundation 10 formed in a lattice shape. The through column 11 is made of, for example, a square steel pipe, and the large beam 12 and the small beam 13 are made of H-shaped steel.

As shown in FIGS. 4 and 5, the structural housing 2 is provided with a stud 14 used for installing a wall or the like. Further, in each of the first floor and the second floor of the building 1, a plurality of braces (bars) 15 are provided between the studs 14 and between the through pillars 11 and the studs 14.
A plurality of braces 15 are provided along the orthogonal street. As an example, when viewed along a street direction, the total length of the plurality of braces 15 arranged along the street direction can be provided so as to be more than half the length of the building 1. 4 and 5, white square marks indicate the through pillars 11, and white circle marks indicate the spacers 14.

  As shown in FIG. 3, a plurality of ALC (lightweight aerated concrete) panels 21 a are placed side by side on the foundation 10. The joint portion of the ALC panel 21a is filled with joint mortar 21b to form one surface. The first floor 21 is constituted by the plurality of ALC panels 21a.

  As shown in FIGS. 3 and 6, a plurality of ALC (lightweight cellular concrete) panels 22 a are placed side by side on the large beam 12 and the small beam 13. The joint portion of the ALC panel 22a is filled with joint mortar 22b to form one surface. The second floor 22 is constituted by the plurality of ALC panels 22a. In addition, a horizontal brace 24 is provided below the girder 12 in a horizontal plane along the lower surface of the second floor 22. The horizontal brace 24 prevents torsional deformation of the floor surface when horizontal force such as seismic force is applied, and establishes the rigid floor assumption of the second floor 22.

  As shown in FIG. 3, the outer wall 16 is composed of a plurality of ALC panels having a width dimension based on a planar module dimension, and is fixed via a receiving metal by a beam (such as a large beam 12) located on the outer periphery of the building 1. .

  Next, the floor plan of the building 1 before renovation will be described. First, the floor plan of the first floor will be described with reference to FIG. In the following description, in order to facilitate the description of the floor plan, the direction will be described with the upper direction in FIG. 1 being north (the same applies to other plan views showing the floor plan). As shown in FIG. 1, on the first floor of the building 1, there are a kitchen / dining room R10, a living room (living room on the predetermined floor) R11, a Japanese-style room (spare room) R12, an entrance R13, a hall R14, a staircase R15, a toilet R16, and a washbasin. Room R17 and bathroom R18 are provided.

  The kitchen / dining room R10, the living room R11, and the Japanese-style room R12 are provided in order from the east side to the west side on the south side of the building 1. The kitchen / dining room R10 is provided with a wall-mounted kitchen set. The living room R11 is provided with a sofa, a television, and the like. The Japanese-style room R12 is a tatami-mat room.

  The entrance R13 is provided at a position on the north side of the east side surface of the building 1. The hall R14, the staircase R15, the toilet R16, the washroom R17, and the bathroom R18 are provided in order from the east side to the west side at the north side of the building 1. The corridor R19 extends westward from the hall R14 and is connected to the kitchen / dining room R10, the living room R11, the Japanese-style room R12, the hall R14, the staircase R15, the toilet R16, and the washroom R17.

  Next, the floor plan of the second floor will be described with reference to FIG. As shown in FIG. 2, on the second floor of the building 1, there are a main bedroom R20, a first children's room (first upper-floor private room) R21, a second children's room (second upper-floor private room) R22, a toilet. R23, storage room R24, corridor R25, veranda R26, and staircase R15 are provided.

  The main bedroom R20 is provided on the east side of the building 1. The first child room R21 is provided on the west side of the main bedroom R20 on the south side of the building 1. That is, the first child room R21 faces the outer periphery of the building 1. The first child room R21 has a storage R21a at a west position. The second child room R22 is provided on the south side of the building 1 and adjacent to the west side of the first child room R21. The second child room R22 has a storage R22a at the position on the east side. Further, the storage R22a of the first child room R21 and the second child room R22 is located immediately above the living room R11 on the first floor of the building 1.

  The toilet R23 is provided on the west side of the staircase R15 on the north side of the building 1. The storage room R24 is provided on the west side of the toilet R23 at the position on the north side of the building 1. The corridor R25 extends in the east-west direction and is connected to the main bedroom R20, the first child room R21, the second child room R22, the toilet R23, the storage room R24, and the staircase room R15. The veranda R26 is a cantilever type veranda protruding toward the south side from the main bedroom R20, the first child room R21 and the second child room R22.

  Next, the details of the reconstruction for changing the floor plan of the building 1 described with reference to FIGS. 1 to 6 will be described. First, the renovation of the first floor will be described. In addition, about the room and component which do not change before and after reconstruction, the same code | symbol as before reconstruction is attached | subjected, and detailed description is abbreviate | omitted. As shown in FIG. 7, an LDK (living / dining / kitchen) R30 and a main bedroom R31 are provided on the south side of the first floor of the building 1 by renovation.

  The LDK R30 is formed by removing partition walls and joinery that divide the kitchen / dining room R10, the living room R11, and the hallway R19 before the reconstruction. By removing the partition walls and joinery that divide the living room R11 and the corridor R19, the through pillars 11, the pillars 14, and the braces 15 that are exposed are left. The through pillars 11, the intermediate pillars 14, and the braces 15 to be left are subjected to a finish such as coating according to the interior color after the reconstruction, or covering with a board material. The kitchen set R30a provided in the LDK R30 is a peninsula type that does not have a hanging cupboard. In this way, LDK R30 is a large space that also incorporates corridor R19 prior to reconstruction.

  The master bedroom R31 corresponds to the Japanese-style room R12 before renovation. In the main bedroom R31, the Japanese-style room R12, which was tatami-mat, is renovated to a Western-style room with flooring. Also, the drawing-type fitting R12a (see FIG. 1) that partitions the Japanese-style room R12 and the living room R11, which was provided before the renovation, is removed to form a partition wall R31a (the spare room is renovated to a new main bedroom). Process). Thereby, the independence of the main bedroom R31 can be enhanced.

  Next, the renovation of the second floor will be described. As shown in FIG. 8, in place of the main bedroom R20, the first children's room R21, the second children's room R22, and the hallway R25 before renovation, a guest room (spare room) R40 is provided on the second floor of the building 1. The atrium space Z and the second floor small living room R41 are provided. The guest room R40 is a room corresponding to the main bedroom R20 before the reconstruction, and the storage type is changed (step of making the main bedroom a new spare room). This guest room R40 is used, for example, when a child returns home.

  The atrium space Z is a space provided immediately above the LDK R30 on the first floor. The atrium space Z is the ALC panel 22a in the area (floor panel removal area W in FIG. 6) located immediately above the living room R11 on the first floor of the second floor 22 before renovation, the floor finishing material on the second floor, and the first floor It is formed by removing the ceiling finishing material (the process of making the first upper-floor private room an atrium space communicating with the living room). The ALC panel 22a in the floor panel removal region W can be easily removed by scraping the joint mortar 22b (see FIG. 3).

  When removing the ALC panel 22a and the like in the floor panel removal region W, as shown in FIGS. 9 and 10, mainly for supporting the ALC panel 22a among the small beams 13 located in the floor panel removal region W. The small beam 13b (refer to FIG. 6) provided in is removed. In addition, among the small beams 13 located in the floor panel removal region W, the small beams 13a that continue to the base end portion of the beam 13 that supports the overhanging veranda R26 remain. The small beam 13a has a function of preventing “sagging” of the veranda R26 by preventing torsional deformation of the joint portion of the large beam 12 to which the small beam 13 supporting the veranda R26 is connected.

  Further, the horizontal braces 24 located in the floor panel removal region W are left. The horizontal brace 24 and the small beam 13a that are exposed in the floor panel removal region W are subjected to finishing such as coating that matches the interior color after reconstruction or covering with a board material. The sliding-type sweep window (lighting window) R21b and the sliding-type waist-high window (lighting window) R21c provided in the first child room R21 before the renovation are removed, and a plurality of vertically long fitting windows are provided. Replace with Za. As the fitting window Za, one having a height dimension larger than the height dimension of the sweep window R21b and the waist high window R21c provided before the reconstruction is used (a daylighting window having a larger height dimension than the existing daylighting window). Installation step). By providing a vertically long fitting window (lighting window having a large height) Za, more light can be taken into the atrium space Z and guided to the LDK R30.

  The second-floor small living room R41 corresponds to the second child room R22 and the hallway R25 before the reconstruction. A partition wall R21d provided along the boundary between the remaining portion of the second floor 22 and the floor panel removal region W, storage (partition wall partitioning the second upper floor private room and the first upper floor private room) R21a, and After removing R22a and joinery etc., the upper end does not reach the ceiling along the boundary line between the second-floor small living room R41 and the floor panel removal region W as shown in FIGS. A high waist wall R41a is provided (step of communicating the second upper-floor private room with the atrium space). The high waist wall R41a is provided with a plurality of slits R41b at substantially equal intervals. The second-floor small living room R41 is used as, for example, a study or a hobby room. In addition to the main parts described above, each part in the building 1 can be renovated.

  As described above, in the renovation method according to the present embodiment, by removing the floor in the floor panel removal area W from the second floor of the building 1, the first child room R21 before the renovation is reconstructed. Becomes an atrium space Z communicating with the LDK R30. Since the first child room R21 faces the outer periphery of the building 1, the atrium space Z also faces the outer periphery of the building 1. For this reason, the light from the fitting window Za provided in the atrium space Z can be guided to the LDK R30 through the atrium space Z, and the LDK R30 can be made a bright and open space. Thereby, the comfort of the living space of the building 1 can be improved.

  At the time of renovation, a vertical insertion window Za having a larger height than the existing sweep window R21b and waist height window R21c provided in the first child room R21 is provided. In this way, it is possible to perform daylighting more effectively by making the fitting window Za have a large height.

  A wall that partitions the second-floor small living room R41 and the atrium space Z is a high waist wall R41a whose upper end does not reach the ceiling. In this case, the second-floor small living room R41 and the LDK R30 can be appropriately connected, and the person in the LDK R30 and the person in the second-floor small living room R41 maintain their independence while feeling the signs of each other. be able to.

  By remodeling the Japanese-style room R12 on the first floor of the building 1 into the main bedroom R31, the rooms necessary for everyday life will be placed on the first floor of the building 1, and the daily life will be completed on the first floor. Can be made.

  Further, when removing the ALC panel 22a and the like in the floor panel removal region W, the small beam 13a and the horizontal brace 24 are left. In this case, since the existing structural member is not modified, the safety of the structure of the building 1 can be maintained.

  When the second floor of the building 1 is formed, a plurality of ALC panels 22a are installed and fixed with joint mortar 22b. With this configuration, when removing a part of the floor of the second-floor floor 22 (removing the ALC panel 22a and the like in the floor panel removal region W), the floor can be easily removed only by scraping the joint mortar 22b. Can be removed.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, a solar power generation device may be installed on the roof surface of the building 1 (a step of installing the solar power generation device) in accordance with the renovation in the building 1 described above. In this case, the increase in the load due to the photovoltaic power generation apparatus is offset by the decrease in the load on the floor in the floor panel removal area W on the second floor and the decrease in the load loaded on the floor. It becomes easy to secure sex.

  In addition, a part of the floor on the second floor was removed, and the room on the second floor was renovated into an atrium space that communicated with the room on the first floor. For example, a part of the floor on the third floor was removed, The room can be renovated into an atrium space that communicates with the room on the second floor. Moreover, the floor plan of the building 1 is not limited to the one described above, and can be changed without departing from the spirit of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Building, 13 ... Small beam (beam installed in the position of the floor height of the upper floor), 22 ... Second floor (upper floor), 22a ... ALC panel (lightweight cellular concrete), 22b ... Joint mortar , 24 ... horizontal braces, R11 ... living room (living room provided on a predetermined floor), R12 ... Japanese-style room (spare room), R20 ... main bedroom, R21 ... first child room (first upper floor private room), R21a, R22a ... Storage (partition wall separating the second upper floor private room and the first upper private room), R21b ... sweep window (existing daylighting window), R21c ... waist high window (existing daylighting window), R22 ... secondary Child room (second upper floor private room), R31 ... master bedroom, R40 ... guest room (spare room), Z ... atrium space, Za ... fitting window (lighting window).

Claims (8)

A renovation method for a building having a living room provided on a predetermined floor, and a first upper-floor private room that is provided above the predetermined floor and above the living room and faces the outer periphery of the building,
A method for renovating a building, including a step of removing a part of the floor on the upper floor to make the first upper-floor private room an open space communicating with the living room.   The renovation of a building according to claim 1, further comprising a step of installing a daylighting window having a height dimension larger than that of an existing daylighting window provided in the first upper-floor private room in the first upper-floor private room. Method. The building has a second upper floor private room adjacent to the first upper floor private room;
A step of removing a partition wall separating the second upper-floor private room and the first upper-floor private room, and further including the step of communicating the second upper-floor private room with the atrium space;
The method of renovating a building according to claim 1 or 2. The building has a spare room on the predetermined floor and a main bedroom on the upper floor,
Refurbishing the spare room on the predetermined floor into a new master bedroom, and further comprising the step of making the master bedroom on the upper floor a new spare room,
The method for renovating a building according to any one of claims 1 to 3.   The step of removing a part of the floor of the upper floor removes the floor leaving a horizontal brace installed on a horizontal plane along the lower surface of the floor of the upper floor. How to renovate the building.   In the step of removing a part of the floor of the upper floor, the floor is removed while leaving a beam installed at a position of the floor height of the upper floor and located in a region where the floor of the upper floor is removed. The method for renovating a building according to any one of claims 1 to 5.   The floor of the upper floor is configured by a plurality of lightweight cellular concrete panels placed on a beam installed at a floor height position of the upper floor and fixed with joint mortar. How to renovate the building according to one item.   The method for renovating a building according to any one of claims 1 to 7, further comprising a step of installing a solar power generation device on the roof of the building.