JPH03151464A - Erecting method for building - Google Patents

Abstract

PURPOSE:To construct a building fully to the boundary by hanging room units for two storeys put together in a single piece, putting it on a foundation formed on the site fully close to the adjacent site, and joining the downstorey room unit fast to the foundation. CONSTITUTION:A concrete foundation 13 is formed closely to the boundary in a site where an existing building 12 is built, and a floor panel 13 is fixed onto this foundation 13. Of those rooms 2, 3 which are to be left situated closely to the boundary the outer surfaces of external wall panels 2b, 3b facing the adjacent site are fabricated at factory to their finish stage. The consolidated room units 1 for two storeys 2, 3 are hung by a crane and put on the foundation 13. By reference to the room unit 2, an external wall panel 25 and a partitioning panel 26 are fastened to foundation bolt 13 upright with the aid of an anchor bolt. Then an overstorey floor panel 27 is laid, and an external wall panel 28 and a partitioning panel 29 are installed, followed by roofing.

Description

[Detailed description of the invention]

"Industrial Application Field" The present invention relates to a method of constructing a building using a room unit having a structure in which wall panels are erected around a floor panel. It concerns how to construct buildings. ``Conventional technology'' Due to the needs of living in recent years, there has been an increasing demand for spacious homes with larger interior spaces in order to enjoy a more comfortable and rich life. However, due to the recent rise in land prices, it is difficult to acquire new land, so for example, when it comes to housing in urban areas, efforts are being made to increase the efficiency of land by building houses with all the frontage possible. In this case, the outer wall of the building requires finishing work (plastering, etc.) on the outer wall of the building, so if there is a building on the adjacent land, there is a minimum space for work between the building and the adjacent land. As a result, we were unable to make effective use of the site. Therefore, in the prior art, in order to eliminate the problem of such a dead space occurring between adjacent sites, a foundation is installed inward from the adjacent boundary of the site, and the unit is placed on this foundation at its final installation position. Discloses a means for effectively utilizing the site by installing the unit at a different location from the original location, performing external work on the unit at the different location, and then moving the unit on the foundation and installing it at its final installation location. (For example, see Japanese Patent Publication No. 1-12889 (Japanese Patent Application No. 58-9185 ``Building Construction Method'')). In the prior art, the unit is temporarily placed on a foundation sufficiently far away from the neighboring building, and exterior work such as painting, draining work, rain gutter work, etc. is done on the outside wall of the unit at this temporarily placed position, and then The unit that has undergone this exterior work is then moved using rails, rollers, etc. to its final installation location, which is located right next to the property line on the side of the adjacent building. [Problems to be Solved by the Invention] The present invention aims to solve the following problems in the prior art described above. First, in the building construction method in the prior art described above, in order to carry out exterior work on the outer wall of the unit, the unit must be temporarily placed on the foundation, and during that time, the temporary position of the unit must be temporarily placed. There was a problem that workability deteriorated because construction was not possible. Second, the building construction method in the prior art requires, for example, installing plastic plates, rails, or rollers with a small coefficient of friction on the foundation in order to move the unit that has undergone exterior work to the final installation position. Therefore, the foundation of the house had to be constructed in such a way that the movement of the units was taken into consideration, and as a result, there was a problem in that construction methods were limited to sites where such a foundation could be constructed. In addition, instead of using plastic plates, rails, rollers, etc., it is possible to use a crane to lift the unit, but in this case, the crane must be kept on standby at the site until the exterior work of the unit is completed, which reduces work efficiency. In addition to this, there are other problems, such as increased crane rental fees and other costs. The present invention has been proposed in view of the above-mentioned circumstances, and its purpose is to construct a building along the boundary line of the adjacent land, even on a site where an existing building stands on all of the adjacent land. To provide a building construction method that can be applied to any site, improve workability, and reduce costs. ``Means for Solving the Problems'' In order to achieve the above object, the present invention constructs a room unit having a wall panel erected around a floor panel in a factory, and then creates a room unit that is connected to the border of adjacent land within the premises. A method of constructing a building in which a foundation is constructed on the ground, then a room unit is lowered onto the foundation, and the foundation and the unit are integrated via anchor bolts, the method comprising: A process of constructing at least the outer surface of the wall panel facing the adjacent land side of the room unit to be installed in the factory to the final finish; (b)
A process of assembling two floors of room units on site and integrating them; (c) suspending the integrated two floors of room units;
This method includes a step of lowering the unit onto a foundation constructed at the border of the adjacent property and integrating the lower floor room unit with the foundation via anchor bolts. "Function J" In the building construction method according to the present invention, the exterior work of the room unit located on the adjacent land side is completed in a factory, and the room unit with the completed exterior work is assembled for two floors on site, and Since the process of suspending and installing the building on the foundation constructed at the same time as the boundary line is adopted, it is possible to construct the building on the adjacent land at the same time as construction work on other foundation locations, improving work efficiency. This part can be constructed by transporting the room unit, whose exterior walls have been finished at the factory, to the site and setting it in place for final installation. It becomes possible to install it in a certain position. "Embodiment" An embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 4 are process charts showing one embodiment of a building construction method. In these figures, the symbol l is the room unit used in this construction method, and this room unit! In the illustrated example, the room units 2 and 3, which constitute the upper and lower floors, respectively, are integrated on site. The lower room unit 2 located on the lower floor consists of two types of wall panels (outer wall panels) 2b and 2c, large and small, erected around a floor panel 2a so as to cover three sides of the periphery, and
The basic structure is that external works such as waterproof finish A and surface finish B have been completely applied to the outer surface of the large outer wall panel 2b facing the adjacent property. Further, in the lower room unit 2 of the embodiment, a partition panel 2d is erected at the center of the floor panel 2a, and is configured to partition the left and right sides of the partition panel 2d into two rooms Rl and R*, respectively. Room R1 located on the left side of the partition panel 2d (left side in Figure 1) is equipped with water facilities such as a bathroom and a toilet, and a second partition panel 2e is provided to separate the bathroom and toilet. The second partition panel 2e is provided with a hinged door 4, and a staircase 5 is attached to one side of the second partition panel 2e. In addition, in the room R2 located on the right side of the partition panel 2e (right side in Figure 1), there is a gas stove G1 and a kitchen sink S.
A sink 6 is provided, and furthermore, this room R1
A window 7 is attached to the outer wall panel 2c of the room unit 2 facing the room. On the other hand, the upper room unit 3 that is integrally attached to the upper side of the lower room unit 2 basically has a floor panel 3 similar to the lower room unit 2 located on the lower floor described above.
Wall panels (outer wall panels) of two sizes (outer wall panels) 3b and 3c are erected around a, covering the three sides around it, and the outer surface of the large outer wall panel 3b facing the adjacent land is provided with a waterproof finish A and the surface. The basic structure consists of complete exterior work such as Finish B. A window 8 and a sliding door 9 are attached to the small external wall panels 3c located on the left and right sides of the upper room unit 3, respectively, and the upper room unit 3 is installed in the center of the upper room unit 3. A partition panel 3d that divides the room into halves is provided upright. In addition, this partition panel 3d
is equipped with a swinging door 10, and a handrail 11 is provided on the floor panel located on the left side of the partition panel 3d. Next, a method for constructing this building will be explained in order of steps using the room unit 1 consisting of the upper and lower room units 2.3 configured as described above.

[Building the foundation]

First, a foundation 13 is constructed inward from the border of the adjacent land in a site where an existing building 12 is being built on the adjacent land. This foundation 1.3 is constructed by so-called concrete molding at the boundary of the adjacent land within the site, and anchor bolts 30 are inserted and fixed at the position on this foundation 13 where the lower room unit 2 will be installed. Make a hole for it. Note that the anchor bolts 30 may be formed in advance to protrude integrally with the foundation 13, but when connecting the lower room unit 2 that has been lowered and the foundation 13, a hole is drilled in the foundation and the hole is inserted later. It is preferable to insert the anchor bolt 30 into the room unit and integrate it with the room unit because it saves time and effort for positioning.

[Laying floor panels]

After constructing the concrete foundation 13, we laid down the concrete foundation, plus deck architrave, and installed the ventilation hardware 15, etc.
As shown in the figure, floor panels 20 manufactured in a panel shape in a factory or the like are laid on a concrete foundation 13, and each floor panel 20 is joined together. This floor panel 20 is installed leaving a part where the lower room unit 2 can be installed, and after the floor panel 20 is laid, an opening with a shape corresponding to the size of the lower room unit 2 is opened in the adjacent area. It will be formed on the side. In addition, in the embodiment, due to the structure in which the floor heating pipe P is arranged inside the floor panel 20, the floor panel 2 is located near the center of the floor.
0 is formed with an opening 20a through which the heating pipe PI is pulled out.

[Installation of adjacent room unit]

In parallel with the work of laying the floor panels 20, the upper and lower room units 2.degree. 3, whose outer surfaces of the outer wall panels 2b and 3b have been completed to the final finish at the factory, are assembled for two floors on site. These upper and lower room units 2.3 are joined together by the wall panels 2b, which constitute the upper and lower room units 2.3, as shown in FIGS. 5 and 7, for example.
2 c, 3 b, and 3 c each have barrel difference bolts 21
This is done by passing it through and tightening the top and bottom with nuts 22. In addition, at this time (y! A of assembling room unit 2.3)
), it goes without saying that finishing work should be done on the joints between the units. Next, the room unit 1 in which the two room units 2 and 3 are integrated in this manner is lifted up using a crane. For slinging to a crane, use a special lifting jig 23, for example.
This is carried out using a hanging wire W via an eye bolt or the like, and in this case, a dedicated hanging jig 23 having a structure as shown in FIG. 8, for example, is used. That is, this dedicated hanging jig 23 has a main body part 23a that is inserted in a large amount through the upper core material of the wall panel, and a locking part 23b that is vertically rotatably attached to the tip of this main body part 23a. , and an operating lever 23c for rotating the locking part 23b.The main body part 23a is attached to the wall panel 3c of the upper room unit 3 at four locations each, and a shackle 24 is attached to the main body part 23a to hang it. It is connected to the wire W. Once the room unit 1 is lifted up by a crane, it is installed in alignment with the floor panel 20 and in alignment with the position of the anchor bolts 30 so that there are no gaps, twists, or horizontal errors. In the embodiment, after the floor panel 20 is laid, the room unit 1 is installed in accordance with the floor panel 20, so the installation of the room unit 1 can be easily performed. Since the anchor bolts 30 are reliably positioned, the lower room unit 2 located on the lower floor and the foundation 13 can be easily joined. In order to further facilitate the installation of the room unit I, for example, as shown in FIG. It is preferable to provide a protrusion 2f that fits into the base 13 because the room unit l can be easily installed on the foundation 13 by the engagement between the protrusion 2' and the base 1i!!13. 1 is installed, the lower room unit 2 located on the lower floor is finally fixed by filling the hole of the anchor hole with a filling material such as cement.

[Assembling the 1st floor wall panels] Once the room unit l, which is made up of the upper and lower 2nd floor room units 2゜3, is installed on the foundation 13 as described above, the heating pipe P attached to this room unit l is installed. , and the heating pipe P1 attached to the floor panel 20 are connected,
The opening on the top surface of the floor panel 20 left for these connections is covered to finish the floor surface. On the other hand, as shown in FIG.
3 through the anchor bolt.

[Laying the 2nd floor floor panels and assembling the 2nd floor wall panels] After the installation of the 1st floor wall panels 25 and 26 is completed, as shown in Figure 3, lay the 2nd floor floor panels 27, and then 2
Assemble the floor wall panels (outer wall panel 28, partition panel 29). Then, construction works such as each pa-mai will be carried out.

[Roof assembly]

Finally, after constructing the roof frame on the top of the second floor wall panels, assembling the roof panels and roofing the top of the roof, roofing is done and the roof 35 is constructed, and the building is completed (Fig. 4). reference). Note that the roof 35 may be made into a unit in advance, and in this case, it is preferable because the efficiency of on-site work increases. As described above, according to the building construction method of the embodiment, the exterior work of the upper and lower room units 2 and 3 located on the adjacent land side is completed in the factory, and the upper and lower room units 2 and 3 with the exterior work completed are 3 is assembled into two floors on-site and suspended from the foundation 13, which is constructed at the boundary line of the adjacent land, so construction work on the adjacent land can be carried out at the same time as building construction work at other foundation locations. can be carried out, and the workability can be improved. Furthermore, in the embodiment, since the room unit l is installed in line with the floor panel 20 laid on the foundation 13, the room unit l can be installed easily. It has the effect of being possible. Also, the room unit 2 whose exterior walls were finished at the factory.
3 to the site, hoisting them up, and installing them in their final locations, construction work on the adjacent land can be carried out, so the room units can be installed in their final locations without depending on the shape of the foundation. As a result, this horizontal construction method can be applied to any site shape. Note that the shapes and dimensions of each component shown in the above embodiments are just examples, and can be changed in various ways based on the design requirements of the building to be constructed. It goes without saying that it is not limited to the form of the embodiment, and may be a steel frame unit. "Effects of the Invention" As explained above, the present invention is based on a method in which a room unit with a wall panel erected around a floor panel is constructed in a factory, and a foundation is constructed at the boundary of the adjacent property within the premises. This is a building construction method in which room units are then lowered onto the foundation and the foundation and units are integrated via anchor bolts, and (a) among the room units that should be placed at the boundary of adjacent land, A process of constructing at least the outer surface of the wall panel facing the adjacent property to the final finish in a factory, (b) a process of assembling two floors of room units on site and integrating them, and (c) this integration. Hang the two-story room unit that has become
The process of lowering the unit onto the foundation constructed at the boundary line of the neighboring property and integrating the lower floor room unit with the foundation via anchor bolts provides the following excellent features: be effective. (a) The exterior work of the room unit located on the adjacent land side has been completed at the factory, and the completion of this exterior work
h * @ 1- j -r kru Kande A9 Majesty → The process of raising the button and suspending it from the foundation constructed at the boundary line of the neighboring property is adopted, so it is easy to use the border of the neighboring property. Even on a site where an existing building is already standing, it is possible to construct the building at the same time as the boundary line of the neighboring land, and the installation work of this unit can be done at the same time as the construction work of the building at other foundation locations. Since construction can be carried out on the adjacent land side, the work efficiency can be improved. Moreover, since the work of suspending the room unit by the crane only takes -100 degrees, there is no need for the crane to be on standby to hang the room unit at the site, and costs can be reduced. (b) In addition, this part can be constructed by transporting the room unit, whose exterior walls have been finished at the factory, to the site and setting it in place for final installation. It has the advantage of being able to be installed in any location, and this construction method can be applied to any site shape. This has the effect of increasing the effective use of the site.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the building construction method according to the present invention. Figure 1 is a perspective view showing a room unit being lifted up and installed on a foundation, and Figure 2 is a first floor wall. A perspective view showing the state in which the panels are installed; FIG. 3 is a perspective view showing the state in which the second floor panel and the second floor wall panel are installed;
Figure 4 is a perspective view showing the completed building with the roof constructed, Figure 5 is a sectional view showing the room unit installed on the foundation, and Figure 6 shows how the wall panels are attached to the foundation. FIG. 7 is a cross-sectional view showing the state in which the first floor wall panel and the second floor wall panel are joined, and FIG. 8 is a perspective view of the dedicated hanging jig. 3...Lower room unit, 3a...Floor panel, 3b...Wall panel, 12...Adjacent building, 13...Foundation, 20 ...Floor panel, 21...Body difference bolt, 22...
Nut, 23...Special jig, 27...2
Floor panel, 30... Anchor bolt, 35.
...Roof, A...Waterproof finish, B...
Surface finish.

Claims (1)

[Claims] A room unit with a wall panel erected around a floor panel is constructed in a factory, a foundation is constructed across the border of the adjacent land within the site, and then the room unit is built on this foundation. A method of constructing a building in which the foundation and unit are integrated via anchor bolts by being lowered, the method comprising: (a) At least the outer surface of the wall panel facing the adjacent land among the room units that are to be installed across the border of the adjacent land; (b) a process of assembling two floors of room units on-site and integrating them; and (c) a process of suspending the integrated two-floor room units. Hold,
A method of constructing a building comprising the steps of: lowering the building onto a foundation constructed to fill the boundary line of neighboring land and integrating the lower floor room unit with the foundation via anchor bolts;