JP7390259B2 - How to install building units - Google Patents

Description

The present invention relates to a building unit installation method for installing temporary building units constituting a temporary building at predetermined installation positions.

2. Description of the Related Art Unit-type houses constructed using a plurality of building units have been known. In modular housing, the building units that make up the housing are manufactured in a manufacturing factory, and the manufactured building units are transported by truck to a construction site (for example, see Patent Document 1). The transported building unit is then lifted by a crane from the truck bed at the construction site and installed at a predetermined installation position.

In recent years, building units have been used to construct temporary buildings such as temporary housing. Such temporary buildings are constructed using building units that have been manufactured in advance at a manufacturing factory, and therefore have the advantage that they can be constructed easily in a relatively short period of time.

Japanese Patent Application Publication No. 2013-129954

When constructing a temporary building using a building unit, it is considered that the building unit is transported to the site by truck, and then the building unit is lifted from the truck bed by a crane and installed at a predetermined installation position. However, unlike modular housing, temporary buildings are typically constructed from a small number (eg, one) of building units. Therefore, when installing such a small number of building units, it is considered to be a large-scale installation work using a crane, and improvements are required.

The present invention has been made in view of the above circumstances, and its main purpose is to provide a method for installing a building unit that allows the building unit to be easily installed in a predetermined position without using heavy equipment such as a crane. That is.

In order to solve the above problems, a method for installing a building unit according to a first aspect of the present invention is a method for installing a temporary building unit having columns and beams and constituting a temporary building at a predetermined installation position. , the building unit is provided with a plurality of legs extending downward from the building unit, and the building unit is installed by placing each of the legs on the ground; The length of each of the legs can be adjusted, and when the building unit is placed on the trolley so that each of the legs is located outside the trolley in plan view, a unit moving step of moving the building unit to the predetermined installation position by moving the cart; and after the unit moving step, the leg length of each leg is lengthened so that each leg is placed on the ground. A leg placement step in which the building unit is supported by each leg by placing the cart on top of the building unit; and after the leg placement step, the cart is evacuated from a position below the building unit. and a unit installation step of installing the building unit at the predetermined installation position by adjusting the leg lengths of the respective legs after the cart retraction step.

According to the first invention, a building unit (temporary building unit) constituting a temporary building is provided with a plurality of legs, and the building unit is installed by placing each leg on the ground. It is now possible to do so. Additionally, the length of each leg can be adjusted.

When installing the above-mentioned building unit at a predetermined installation position, first, the building unit is placed on a cart and the cart is moved to move the building unit to the predetermined installation position. Then, by increasing the leg length of each leg and placing each leg on the ground, the building unit is supported by each leg. Thereafter, the trolley is evacuated from the position below the building unit, and after evacuating, the building unit is installed at a predetermined installation position by adjusting the leg length of each leg. According to such a building unit installation method, heavy machinery such as a crane is not required when installing the building unit. Therefore, it becomes possible to easily install the building unit at a predetermined installation position.

A method for installing a building unit according to a second invention is a method for installing a building unit in the first invention when moving and installing the building unit from the current installation position to the predetermined installation position, a unit raising step in which the building unit installed at the installation position is raised by extending the leg length of each of the legs, and a cart placement step in which the cart is placed below the lifted building unit; After the cart placement step, the building unit is placed on the cart by shortening the leg length of each leg, and after the unit placement step, the unit is moved. It is characterized by carrying out a process.

According to the second invention, when moving the building unit from the current installation position to a new installation position (predetermined installation position), first the building unit installed at the current installation position is Increase by lengthening. Thereafter, a cart is placed below the raised building unit, and after placement, the building unit is placed on the cart by shortening the leg length of each leg. Then, the cart is moved to move the building unit to a predetermined installation position, and the building unit is installed at the installation position. According to such an installation method, there is no need to use heavy machinery such as a crane when moving the building unit from the current installation position to a new installation position. Therefore, it becomes possible to easily relocate the building unit.

In the method for installing a building unit according to a third aspect of the invention, in the first or second aspect, each of the legs is provided for each of the columns of the building unit, each of the columns is formed in a tubular shape, and The leg is inserted into the column in a state of protruding downward from the lower end of the column, and the length of the leg can be adjusted by sliding along the column in the inserted state. shall be.

According to the third invention, the leg is slidably inserted into the pillar of the building unit, and the length of the leg can be adjusted by sliding. In this case, the legs can be constructed using the pillars of the building unit, allowing the leg length to be adjusted relatively easily.

A fourth aspect of the building unit installation method according to any one of the first to third aspects of the invention, wherein the building unit includes, as the beam, a plurality of floor girders connecting the lower ends of the adjacent columns. , a plurality of floor beams that connect the opposing floor beams and support the floor material, and when the floor beams are placed on the cart, the building unit is placed on the trolley.

According to the fourth invention, the floor beam of the building unit is placed on the cart, so that the building unit is placed on the cart. In this case, the building unit can be placed on the trolley by using the floor beams that support the floor material, so the building unit can be placed on the trolley without significantly changing the configuration of the building unit. becomes possible.

A front view showing a temporary store. A perspective view showing a building unit. The front view which shows the state where the leg part is attached to the pillar of a building unit. FIG. 3 is a diagram showing the electrical configuration of a control system. An explanatory diagram for explaining how to install a building unit. A diagram showing a state in which a building unit is placed on a large truck. An explanatory diagram for explaining the flow when relocating a building unit using a light truck.

An embodiment embodying the present invention will be described below with reference to the drawings. In this embodiment, the method for installing a building unit according to the present invention is embodied as a method for installing a building unit constituting a temporary store. First, the configuration of the temporary store will be explained based on FIGS. 1 and 2. FIG. 1 is a front view of a temporary store, and FIG. 2 is a perspective view of a building unit.

As shown in FIG. 1, the temporary store 10 includes one building unit 11 formed in the shape of a rectangular parallelepiped, and a plurality of (specifically four) legs 12 provided on the building unit 11. There is. Each leg 12 is arranged at the four corners of the building unit 11 and extends below the building unit 11. Each of these legs 12 is placed on the ground G, and in this placed state, the building unit 11 is installed on the ground G via each leg 12. Note that the temporary store 10 corresponds to a "temporary building". The building unit 11 corresponds to a "temporary building unit".

As shown in FIG. 2, the building unit 11 includes a rectangular parallelepiped-shaped frame 15 that constitutes its skeleton. The frame body 15 includes four columns 21 disposed at its four corners, and four ceiling beams 22 and four floor beams 23 that connect the upper and lower ends of each column 21, respectively. The pillars 21, ceiling beams 22, and floor beams 23 form an outer frame of the frame body 15. The pillar 21 is made of rectangular cylindrical square steel. The ceiling beam 22 and the floor beam 23 are made of channel steel having a U-shaped cross section, and are installed so that their openings face each other.

In the ceiling portion of the frame 15, a plurality of ceiling beams 25 are spanned at predetermined intervals (more specifically, at equal intervals) between opposing ceiling beams 22 on the long sides. Further, on the floor portion of the frame body 15, a plurality of floor beams 26 are spanned at predetermined intervals (more specifically, at equal intervals) between the floor beams 23 facing each other on the long sides. The ceiling beam 25 is made of lip channel steel, and the floor beam 26 is made of square steel.

A ceiling material 27 is provided on the ceiling of the building unit 11, and a floor material 28 is provided on the floor. The ceiling material 27 is supported from above by each ceiling beam 25, and the floor material 28 is supported from below by each floor beam 26. Furthermore, a wall material 29 (see FIG. 1) is provided on the side surface of the building unit 11. The wall material 29 is attached across the pillar 21 and each of the girders 22 and 23. Although not shown in FIG. 1, for example, a part of the wall material 29 is provided with an opening such as a window or a doorway.

As will be described later, when the main building unit 11 is installed at a predetermined installation position, it is transported to the installation position using a trolley 40. At this time, the building unit 11 is placed on the trolley 40 by placing each floor beam 26 on the trolley 40, and is transported in that state to the installation position. Therefore, in the main building unit 11, each floor beam 26 is used as a mounting section on which the trolley 40 is mounted. Therefore, in the main building unit 11, each floor beam 26 is formed to have relatively high strength in order to suppress deformation such as deflection when placed on the trolley 40. More specifically, in a normal building unit, it is sufficient that each floor beam has enough strength to support the floor material, but in this building unit 11, the strength required to withstand placement on the trolley 40 is required. Therefore, each floor beam 26 is formed with higher strength than the floor beams of a normal building unit.

Next, the leg portion 12 will be explained based on FIG. 3. FIG. 3 is a front view showing the leg portion 12 attached to the pillar 21 of the building unit 11.

As shown in FIG. 3, each pillar 21 of the building unit 11 is provided with a leg portion 12, respectively. These legs 12 extend in the vertical direction and include a base body 12a formed in a rectangular cylindrical shape using a square steel pipe, and a flat lower end plate 12b fixed to the lower end of the base body 12a by welding. ing.

Each leg 12 is attached to the column 21 while being inserted into the column 21. Each leg 12 is inserted into the column 21, and a portion thereof protrudes below the lower end of the column 21. In this case, the length of the protruding portion corresponds to the leg length L of the leg portion 12. Moreover, each leg 12 is slidable in the vertical direction along the column 21 while being inserted into the column 21. The leg length L of the leg portion 12 can be adjusted by the slide.

The building unit 11 is provided with a leg driving section 31 for sliding the leg 12 up and down along the pillar 21 for each leg 12. Each leg drive section 31 is made of, for example, an electric motor, and is provided inside the column 21. The leg portion 12 is slid up and down by driving the leg drive portion 31, and thus the leg length L of the leg portion 12 is adjusted.

Next, the configuration of a control system for adjusting the leg length L of the leg portion 12 will be described using FIG. 4. Note that FIG. 4 is a diagram showing the electrical configuration of such a control system. Further, FIG. 4 also shows a control system for the truck 40, which will be described later.

As shown in FIG. 4, the building unit 11 is provided with a unit control section 35 that controls the drive of each leg drive section 31. The unit control section 35 includes a well-known microcomputer having a CPU, etc., and is connected to a reception section 36 that receives operation signals from a remote control 38. The remote control 38 is a leg operation section that is operated when adjusting the leg length L of the leg section 12, and is carried by the worker. When the remote control 38 is operated by a worker, an operation signal corresponding to the operation is wirelessly transmitted from the remote control 38 to the receiving section 36. When this operation signal is received by the reception section 36, the operation signal is input from the reception section 36 to the unit control section 35.

Each leg drive section 31 is connected to the unit control section 35 . The unit control section 35 drives and controls each leg drive section 31 based on the operation signal received from the remote controller 38, and adjusts the leg length L of each leg section 12. Further, the building unit 11 is provided with a horizontal sensor 37 that detects the levelness of the building unit 11. The horizontal sensor 37 is connected to the unit control section 35 and sequentially outputs detection results to the unit control section 35. The unit control section 35 drives and controls each leg drive section 31 based on the detection result from the horizontal sensor 37. Specifically, the unit control section 35 controls each leg drive section 31 to adjust the leg length L of each leg section 12 so that the building unit 11 maintains a horizontal state.

Next, an installation method for installing the above-mentioned building unit 11 (and eventually the temporary store 10) at a predetermined installation position will be described based on FIG. 5. FIG. 5 is an explanatory diagram for explaining the installation method of the building unit 11. In this embodiment, the building unit 11 is moved to a predetermined installation position using a trolley 40 and installed. Therefore, first, the configuration of the trolley 40 will be briefly explained below.

As shown in FIG. 5(c) and the like, the trolley 40 includes a platform 41 on which the building unit 11 is placed, and a plurality of wheels 42 provided on the platform 41. The platform 41 is formed in the shape of a flat rectangular parallelepiped, and its upper surface serves as a mounting surface 41a on which the building unit 11 is mounted. Further, each wheel 42 is attached to a side surface of the base portion 41, respectively. The width of the cart 40 (the length in the short direction in plan view) is smaller than the interval between the legs 12 adjacent in the short side direction of the building unit 11, and the length (in the long side direction in plan view) length) is made smaller than the interval between the respective leg parts 12 adjacent to each other in the long side direction of the building unit 11.

The trolley 40 is configured to travel based on an operation from the outside. As shown in FIG. 4, the truck 40 is provided with a travel drive section 49 that drives the travel of the truck 40, and a truck control section 45 that drives and controls the travel drive section 49. The travel drive section 49 is composed of a motor that rotationally drives the wheels 42, and is connected to the truck control section 45. The trolley control section 45 is connected to a receiving section 46 that receives operation signals from a remote controller 48 . The remote control 48 is a trolley operation unit that is operated when the trolley 40 is run (moved), and is carried by the worker. When the remote control 48 is operated by a worker, an operation signal corresponding to the operation is wirelessly transmitted from the remote control 48 to the receiving section 46. When this operation signal is received by the receiving section 46, the operation signal is input from the receiving section 46 to the trolley control section 45. Then, the truck control section 45 drives and controls the travel drive section 49 based on the operation signal received from the remote controller 48, and causes the truck 40 to travel.

Next, a method for installing the building unit 11 (that is, temporary store 10) using the above-mentioned trolley 40 will be explained using FIG. 5. Here, it is assumed that a plurality of temporary stores gather within a predetermined site to form a so-called store group. Each of these temporary stores is constructed using building units, similar to the above-described temporary store 10. These temporary stores are periodically relocated, and in the following, the temporary store 10 (building unit 11) will be moved from the current installation position to a new installation position (corresponding to the predetermined installation position). This section explains the flow when changing locations. Further, the operations described below are performed by an operator operating remote controllers 38 and 48.

FIG. 5(a) shows a state in which the building unit 11 is installed at the current installation position. When moving the building unit 11 from the current installation position to a new installation position, first, as shown in FIG. Perform a unit raising process to move the unit upward. In this step, the building unit 11 is raised until the height position of the lower end of the building unit 11 is located at a higher position than the mounting surface 41a of the platform 41 of the trolley 40.

Next, as shown in FIG. 5(c), a cart placement step is performed in which the cart 40 is placed below the building unit 11 raised in the unit raising step. In this step, the trolley 40 is moved to a position below the building unit 11 through between the adjacent legs 12. Specifically, in this step, the trolley 40 is moved so that the entire trolley 40 is located below (directly below) the building unit 11.

Next, as shown in FIG. 5(d), a unit mounting step is performed in which the building unit 11 is mounted on the trolley 40 by shortening the leg length L of each leg portion 12. In this step, the building unit 11 is placed on the cart 40 by placing each floor beam 26 of the building unit 11 on the mounting surface 41a of the cart 40. In this case, with the building unit 11 placed on the truck 40, each leg 12 is located outside the truck 40 in plan view.

Next, as shown in FIG. 5E, a unit moving process is performed in which the building unit 11 is moved to a new installation position by moving the cart 40. Next, as shown in FIG. 5(f), by increasing the leg length L of each leg 12 and placing each leg 12 on the ground G, the building unit 11 A leg mounting step is performed to ensure that the legs are supported. Through this step, the building unit 11 is spaced upward from the mounting surface 41a of the trolley 40.

Next, as shown in FIG. 5(g), a cart retraction process is performed in which the cart 40 is evacuated from a position below the building unit 11. In this step, the entire truck 40 is evacuated from below the building unit 11 by moving the truck 40.

Next, as shown in FIG. 5H, a unit installation process is performed in which the building unit 11 is installed at a new installation position by adjusting the leg length L of each leg 12. In this step, the building unit 11 is installed at a new installation position by shortening the leg length L of each leg 12. Thereby, the building unit 11 is installed at a new installation position with the level difference between its floor surface and the ground G being reduced.

As described above, the building unit 11 (temporary store 10) is moved and installed from the current installation position to a new installation position using the trolley 40. In this case, since the building unit 11 can be moved from the current installation position to a new installation position without using heavy equipment such as a crane, the building unit 11 can be easily moved.

In addition, in this embodiment, when relocating each temporary store (that is, building unit) constituting the store group to a new installation position, the cart 40 is used to relocate the temporary store 10, as in the case of relocating the temporary store 10 described above. It is now possible to do so. In this case, by reusing the trolley 40, each temporary store can be easily relocated.

According to the configuration of this embodiment described in detail above, the following excellent effects can be obtained.

According to the unit installation method described above in which the building unit 11 is relocated using the trolley 40, in addition to the above-mentioned effect that the building unit 11 can be relocated without using a crane, when the building unit 11 is relocated using a crane. Compared to the above, it is possible to reduce the number of workers involved in relocation work.

By installing the building unit 11 on the ground G via the legs 12, a foundation can be made unnecessary when installing the building unit 11.

Since the leg length L of the leg part 12 is adjustable, the leg length L of the leg part 12 can be shortened and the building unit 11 can be installed with the level difference between the floor surface and the ground G reduced. In this case, the difference in floor level from the ground G can be reduced, making it easier to enter and exit the building unit 11. Moreover, when the ground G is uneven, the building unit 11 can be installed in a horizontal state by adjusting the leg length L of each leg part 12 according to the unevenness.

The leg part 12 is slidably inserted into the inside of the column 21 of the building unit 11, and the leg length L can be adjusted by sliding the leg part 12. In this case, the legs 12 whose leg lengths can be adjusted relatively easily can be constructed using the pillars 21 of the building unit 11.

The floor beam 26 of the building unit 11 is used as a mounting part placed on the trolley 40. In this case, since the building unit 11 can be placed on the trolley 40 using the floor beams 26 that support the floor material 28, the building unit 11 can be placed on the trolley 40 without significantly changing the configuration of the building unit 11. It becomes possible to place the building unit 11 thereon.

When relocating the building unit 11 constituting the temporary store 10, the above installation method using the trolley 40 was applied. It is assumed that the temporary store 10 will be moved periodically. Therefore, it can be said that the advantage of being able to easily relocate such a temporary store 10 using the trolley 40 is especially great.

The present invention is not limited to the above embodiments, and may be implemented, for example, as follows.

(1) The structure of the cart on which the building unit 11 is placed is not necessarily limited to that of the above embodiment. For example, as shown in FIG. 6, the building unit 11 may be placed on the loading platform 51 of a large truck 50 and moved. In this case, the large truck 50 corresponds to a "bogie".

(2) Alternatively, as shown in FIG. 7, the building unit 61 may be placed on the platform 56 of a light truck 55 and moved. In this case, the light truck 55 corresponds to the "bogie". In the case of the light truck 55, the loading platform 56 is small, so if the building unit 61 is placed on the loading platform 56, the building unit 61 will protrude rearward from the loading platform 56. Therefore, in the example of FIG. 7, a plurality of wheels 63 are provided in a portion of the building unit 61 that protrudes rearward from the loading platform 56. As shown in FIG. 7(a), these wheels 63 are each attached to the building unit 11 via wheel supports 64. The wheel support part 64 is attached to the lower part of the building unit 11 and extends below the building unit 11. The wheels 63 are attached to the lower end of this wheel support portion 64, so that the wheels 63 are located below the building unit 11. Each wheel 63 is placed on the ground G with the building unit 61 placed on the loading platform 56. In this case, the building unit 61 is placed on the platform 56 of the light truck 55 and placed on the ground G via the wheels 63.

The wheel support part 64 is provided so as to be slidable in the vertical direction with respect to the building unit 61, and the wheel 63 can be displaced in the vertical direction by the sliding of the wheel support part 64. In this case, the wheels 63 have a mounting position located below the building unit 61 and placed on the ground G (see FIG. 7(a)), and a lower end that is retracted upward from the mounting position and is placed on the building unit. 61 and a retracted position (see FIG. 7(b), etc.). Further, although not shown in the drawings, each wheel 63 is configured to be displaced between a mounting position and a retracted position by driving a wheel drive unit including an electric motor or the like.

To explain the flow of moving the building unit 61 using the light truck 55, first, as shown in FIG. A unit moving process is performed in which the building unit 61 is moved to a predetermined installation position by moving the building unit 55. In this case, as described above, since the building unit 61 is placed on the loading platform 56 and on the ground G via the wheels 63, the wheels 63 rotate as the light truck 55 moves. At the same time, the building unit 61 moves.

Next, as shown in FIG. 7(b), by increasing the leg length of each leg 62 of the building unit 61 and placing each leg 62 on the ground G, each leg 62 of the building unit 61 is placed on the ground G. A leg mounting step is performed to bring the building unit 61 into a supporting state. In this step, by extending the leg length of each leg portion 62, the building unit 61 is spaced upward from the loading platform 56 of the light truck 55, and each wheel 63 is spaced upward from the ground G. Further, after the leg placement step, a wheel retraction step is performed in which each wheel 63 is moved to a retracted position.

Next, as shown in FIG. 7C, a truck retraction process is performed in which the light truck 55 is retracted from the position below the building unit 61. This truck evacuation process corresponds to the truck evacuation process. Next, as shown in FIG. 7D, a unit installation process is performed in which the building unit 61 is installed at a predetermined installation position by adjusting the leg length of each leg 62. Here, the building unit 61 is installed at a predetermined installation position by shortening the leg length of each leg portion 62. As described above, the building unit 61 can also be moved to a predetermined installation position using the light truck 55.

(3) In the above embodiment, the building unit 11 is placed on the cart 40 with each floor beam 26 of the building unit 11 placed on the cart 40. The section does not necessarily have to be the floor beam 26. For example, a mounting plate placed on the trolley 40 may be fixed to the lower surface of the floor beam 26. In this case, it is conceivable to arrange the mounting plates at multiple locations. In this configuration, the building unit 11 is placed on the cart 40 by placing each mounting plate on the cart 40.

Additionally, a plurality of horizontal members having higher strength than the floor beams 26 are installed between the pair of opposing floor girders 23, and each of these horizontal members is used as a mounting portion to be placed on the trolley 40. You can do it like this.

(4) In the above embodiment, the leg portion 12 is inserted into the column 21, but the leg portion 12 may be provided outside the column 21. For example, a configuration can be considered in which a rail member is provided on the side surface of the column 21 to allow the leg portion 12 to slide up and down, and the leg portion 12 is slidably attached to the rail member. Also in this case, the leg length can be adjusted by sliding the leg portion 12 up and down. Further, the leg portion 12 may be attached to a member other than the pillar 21, such as the floor girder 23.

(5) In the above embodiment, when moving each temporary store using the trolley 40, the temporary store was moved by the operator's remote control operation. The location may be automatically relocated. For example, a configuration may be considered that includes a control device that has a function of grasping the current installation position of each temporary store and a function of setting a new installation position of each temporary store. In this case, the control device sets the location where the temporary store will be relocated based on event information regarding an event to be held at the store group, and moves the temporary store to the location where the temporary store is set to be relocated at the appropriate time of relocation. Perform the relocation process. This relocation process is performed by, for example, AI.

Specifically, during the relocation process, the control device transmits command signals to the unit control section 35 and the trolley control section 45, respectively, so that the control sections 35 and 45 adjust the leg length of the leg section 12 and control the trolley. Make 40 moves. In this case, each control unit 35, 45 controls the control units 35, 45 so that the above-mentioned unit raising process → trolley arrangement process → unit mounting process → unit moving process → leg mounting process → trolley retracting process → unit installation step is performed in this order. control. With such a configuration, each temporary store can be automatically relocated in accordance with daily events and the like. Therefore, it becomes possible to automatically move the temporary store to an optimal installation position during times when there are no people, such as at night.

(6) In the above embodiment, the installation method of the present invention is applied to the building unit 11 that constitutes the temporary store 10 (corresponding to a temporary building), but for example, buildings that constitute other temporary buildings such as temporary housing and temporary toilets The present invention may be applied to the unit.

In addition, temporary housing may consist of a plurality of building units, and in this case, each of these building units may be moved to a predetermined installation position using a trolley 40 and installed. Bye.

(7) For example, in a temporary housing, if a flood occurs, the floor height can be increased by increasing the leg length L of the leg portions 12, thereby making it possible to avoid flooding above the floor. In the case of temporary housing, it is assumed that after the building unit is installed, uneven settlement will occur and the levelness of the housing will not be maintained. It becomes possible to maintain the horizontal level again.

DESCRIPTION OF SYMBOLS 10... Temporary store as a temporary building, 11... Building unit, 12... Leg, 21... Column, 23... Floor beam as a beam, 26... Floor beam as a beam, 40... Dolly.

Claims (4)

A method for installing a building unit in which a temporary building unit having columns and beams and constituting a temporary building is moved and installed at a predetermined installation position using a trolley, the method comprising:
The building unit is provided with a plurality of legs extending downward from the building unit, and the building unit is installed by placing each of the legs on the ground,
The leg length of each of the legs can be adjusted,
The trolley includes a platform formed in a flat rectangular parallelepiped shape on which the building unit is placed, and a plurality of wheels provided on the platform,
The building unit is placed on the cart so that each of the legs is located outside the cart in plan view, and the cart , which is entirely located below the building unit, is moved. a unit moving step of moving the building unit to the predetermined installation position;
After the unit moving step, the legs are placed on the ground by lengthening the leg lengths of the legs so that the building unit is supported by the legs. a mounting process;
After the leg placement step, a cart retracting step of retracting the entire cart from a position below the building unit;
After the cart retraction step, a unit installation step of installing the building unit at the predetermined installation position by adjusting the leg length of each leg;
A method for installing a building unit, characterized by comprising: A method for installing a building unit when moving and installing the building unit from the current installation position to the predetermined installation position, the method comprising:
a unit raising step of raising the building unit installed at the current installation position by extending the leg length of each leg;
a cart arranging step of arranging the cart so that the entire cart is located below the elevated building unit;
After the cart placement step, a unit mounting step of placing the building unit on the cart by shortening the leg length of each leg,
2. The building unit installation method according to claim 1, wherein the unit moving step is performed after the unit mounting step. Each of the leg portions is provided for each of the pillars of the building unit,
Each of the pillars is formed into a tubular shape,
The leg is inserted into the column in a state of protruding downward from the lower end of the column, and the length of the leg can be adjusted by sliding along the column in the inserted state. The method for installing a building unit according to claim 1 or 2. The building unit includes, as the beams, a plurality of floor girders that connect the lower end portions of the adjacent columns, and a plurality of floor beams that connect between the opposing floor girders and support floor materials. has,
The building according to any one of claims 1 to 3, wherein each of the floor beams is placed on the truck, so that the building unit is placed on the truck. How to install the unit.

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