JPH10292629A - Method for constructing house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable securing safety for operators who work below a roof part or the like when jacking up the roof part, etc. SOLUTION: After a roof part is completed on a concrete foundation 1 in advance, the hydraulic cylinder 12 of a building jack device 10 is expanded and contracted and a plurality of struts 16 are connected to one another to raise the roof part to a set height position, and the wall framework and exterior wall materials of a house top A2 are assembled together inside a space below the roof part raised. When tie beams and floor beams 3 are raised by the hydraulic cylinder 12, posts 18 supporting vertical loads are placed between the tie beams and the floor beams 3 or between the floor beams 3 and the concrete foundation 1 before the tie beams and the floor beams 3 have been raised by the hydraulic cylinder 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for finishing a roof on a concrete foundation in advance, lifting the roof with a jack device for construction, and then installing a wall frame or an outer wall material in a space below the lifted roof. It is related to the construction method of houses to be assembled.

[0002]

2. Description of the Related Art As a method of building a prefabricated house or the like, for example, a truck crane is used to lift building materials.
A construction method of assembling houses in order from the floor to the roof is known.

[0003] In order to carry out construction work using such a crane truck, a space capable of carrying the crane truck to the construction site and at which the crane truck can work is required. Therefore, a crane truck cannot be carried in a densely populated area or a narrow approach road, and even if a crane truck can be carried in, it cannot be used if the site area is small. Also, 1
Since the work is to be piled up sequentially from the floor to the roof, work at heights is indispensable, and temporary facilities such as safety nets and scaffolds for work at heights are required, and a site area that allows construction of temporary facilities is secured. Other than having to do
The construction cost is required.

[0004] For this reason, a construction method capable of constructing a house even on a small land without using a working machine such as a crane truck and without requiring a worker to work at high places has been filed. This has been proposed by humans (for example, see Japanese Patent Application Laid-Open No. 6-185221).

[0005]

However, in the above-mentioned construction method, the roof portion is first completed on the ground, and then the jack device for construction is expanded and contracted, and a plurality of struts are connected. The roof is raised to a set height position, and a wall frame, an outer wall material, and the like are assembled in a space below the lifted roof. For this reason, a case where the architectural jack device is arranged on the inner side of the concrete foundation is assumed. In this case, it is necessary for an operator to enter the space below the roof and connect the strut. Therefore,
When the worker enters the space below the roof to connect struts and the like, if the support of the roof or the like by the building jack device is removed, there is a risk of causing personal injury.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem. Even if the support of the roof by the building jack device is released, the safety of the house can be ensured for workers. It provides a building method.

[0007]

According to a first aspect of the present invention, there are provided two hydraulic cylinders each having a piston rod connected in parallel to a base, and an upper or substantially upper portion of a cylinder tube of these hydraulic cylinders. A cross-beam that can be selectively attached to the center of the cylinder tube. The first socket is detachably connected to the cross-beam attached to the upper part of the cylinder tube via a stopper, and the second socket is erected on the base. The plurality of architectural jack devices constructed as described above are respectively installed at predetermined positions, and the second floor supports the floor beams on the second floor placed on the concrete foundation via the temporary material, and the floor beams After supporting the hut beam placed on the roof via the temporary material with the first socket,
After assembling the roof part on the hut beam and completing it, the hydraulic cylinder of the building jack device is extended to lift the roof part and the hut beam through the first socket,
While connecting the first strut between the socket and the floor beam, the connection between the cross beam and the first socket is released, and the hydraulic cylinder is reduced so that the roof and the shed beam are connected to the first socket, the first strut and the floor. After supporting the beam via the beam and then connecting the cross beam and the first strut, the hydraulic cylinder is extended again to move the roof and the shed beam to the first position.
Lift through the socket and the first strut,
Connect the second strut between the strut and the floor beam, and repeat the connection work of the set number of struts, the connection and disconnection work of the cross beam and the strut, and the expansion / contraction work of the hydraulic cylinder to repeat the roof section and the shed beam. After raising to the set height position, assemble the wall frame, outer wall material, small roof, balcony, window frame sash, etc. of the upper part of the house between the hut beam and the floor beam, and then support the upper part of the house. After removing the first socket and all struts, the cross beam is released from the upper portion of the cylinder tube, and is attached to the substantially central portion of the cylinder tube below the floor beam, and the cross beam is After connecting the second socket and the hydraulic cylinder of the architectural jack device to extend the top of the house and the floor beam through the second socket, While the first strut is connected between the base and the base, the connection between the cross beam and the second socket is released, and the hydraulic cylinder is reduced to connect the top of the house and the floor beam via the second socket and the first strut. After supporting and then connecting the cross beam and the first strut, the hydraulic cylinder is extended again to lift the top of the house and the floor beam through the second socket and the first strut, and to move between the first strut and the base. Connect the second strut to the strut and repeat the work of connecting the struts of the specified number, the connection and disconnection of the cross beam and the strut, and the work of expanding and contracting the hydraulic cylinder to raise the top of the house and the floor beam to the set height After that, between the floor beam and the concrete foundation, the wall frame at the bottom of the house, outer wall material, window frame sash,
In the construction method of a house in which an entrance door or the like is assembled, when the hut beam or floor beam is lifted by the extension of the hydraulic cylinder, between the hut beam and the floor beam and between the floor beam and the concrete foundation prior to the connection of the strut. And a post for supporting a vertical load is disposed on the first post.

The invention according to claim 3 comprises two hydraulic cylinders each having a piston rod connected to a base in parallel, and a cross beam attached to a cylinder tube of these hydraulic cylinders. A plurality of architectural jack devices constructed by detachably connecting sockets via stoppers are respectively installed at predetermined positions, and the shed beams placed on the concrete foundation via temporary materials are After supporting, assembling the roof on the shed beam to complete it, and then extending the hydraulic cylinder of the building jack device to lift the roof portion and the shed beam through the socket, and then between the socket and the base. The first strut is connected to the roof, and the connection between the cross beam and the socket is released. After supporting through the socket and the first strut, and then connecting the cross beam and the first strut, the hydraulic cylinder is extended again to lift the roof and the shed beam through the socket and the first strut. Connect the second strut between the strut and the base, and connect the strut with the number of struts set above,
After repeating the work of connecting and disconnecting the cross beam and strut, and the work of expanding and contracting the hydraulic cylinder to raise the roof and hut beam to the set height position, the wall frame and outer wall are placed between the hut beam and the concrete foundation. In the construction method of a house in which lumber, window frame sashes, entrance doors, etc. are assembled, when lifting the shed beam by extending the hydraulic cylinder, support the vertical load between the shed beam and the concrete foundation prior to connecting the struts. It is characterized by disposing a post.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a floor beam 3 on the second floor is placed on a concrete foundation 1 via a plurality of temporary members 4, and a plurality of temporary members 4 are placed on the floor beam 3. The hut beam 2 is placed via the. The hut beam 2 and the floor beam 3 are respectively supported by a first socket 14 and a second socket 15 provided in the jack device 10 for construction. In this state, the hut beam 2
It is set to be located at a height of 0 mm to 1000 mm.

Here, the hut beam 2, the floor beam 3, and the temporary material 4
Is formed of an H-section steel having a height of 100 mm to 200 mm, and the hut beam 2 is connected by a beam connection 21 and the floor beam 3 is connected by a beam connection 31.

As shown in FIG. 2, the construction jack device 10 lifts up sequentially from the top of the finished house, and includes two hydraulic cylinders 12 having piston rods 122 connected to a base 11 in parallel. And a cross beam 13 that can be selectively attached to an upper portion and a substantially central portion of a cylinder tube 121 of the hydraulic cylinder 12. The hydraulic cylinder 12 is driven by an electric motor (not shown). P (see FIG. 6).

The cross beam 13 is divided into two parts so that it can be fastened by being sandwiched between flanges 121a and 121b formed in the upper part and substantially central part of the cylinder tube 121 of the hydraulic cylinder 12 from the front and rear directions.
Usually, it is attached to a flange 121a formed on the upper part of the cylinder tube 121, and connects the cylinder tubes 121 of the two hydraulic cylinders 12 integrally. In the center of the cross beam 13, a first socket 14,
A through hole 13a (see FIG. 3) through which the second socket 15 and the strut 16 can be inserted is formed.

As shown in FIG. 3, a stopper 131 is urged on the cross beam 13 so as to project inward through a spring (not shown) toward the through hole 13a. The stopper 131 is made to protrude into the inside of the through-hole 13a by a ratchet mechanism which is operated by operating a handle (not shown).
a.

On the other hand, as shown in FIG. 4, a columnar member 111 is integrally fixed to the base 11 between the piston rods 122 of the hydraulic cylinder 12, and a cross-shaped member is formed on the columnar member 111. A pedestal 112 made of a convex portion is formed. The outer edge of the pedestal 112 is formed in a tapered portion 112a whose diameter is gradually reduced upward. The pedestal 112 is also formed on the floor beam 3.

The first socket 14 and the second socket 1
5 and the strut 16 are both formed of pipes having the same diameter, and a stopper 131 provided on the cross beam 13 described above is engaged with a predetermined position on the outer peripheral surface of the first socket 14, the second socket 15, and the strut 16. Engageable engagement holes 14a, 15a, 16a are respectively formed. Notches 14 are provided at the base ends of the first socket 14, the second socket 15 and the strut 16, respectively.
b, 15b, and 16b are formed, and the pedestal 1 described above is formed.
12 can be engaged. When these notches 14b, 15b, 16b engage with the pedestal 112, the engaging holes 14a, 15a, 16a of the first socket 14, the second socket 15, and the strut 16 are respectively fitted to the stopper 131 of the cross beam 13. Can be opposed.

First socket 14 and second socket 15
Is a socket portion 14 that can be fitted to the base 112 at the base end thereof.
1 and 151 have the same structure.

On the other hand, the strut 16 is
A pipe-like member slightly shorter than the stroke amount of 2,
As shown in FIG. 5, a tapered portion 162 whose diameter is gradually reduced upward is formed at the distal end of the main body 161, and a socket portion 16 that can be fitted to the tapered portion 162 is formed inside the base end thereof.
3 are formed. Therefore, one strut 16
Taper part 162 and socket part 1 of another strut 16
The strut 16 can be sequentially connected by fitting the strut 16 with the strut 16. Also, the socket part 141 of the first socket 14 and the socket part 15 of the second socket 15
1 can also be fitted to the tapered portion 16a of the strut 16.

The upper end of the second socket 15 is provided with a receiving member 152 (see FIG. 24) for supporting the floor beam 3. Although not shown in detail, a receiving member is also provided at the upper end of the first socket 14 for supporting the hut beam 2.

The cross beam 13 has a proximity switch 132 (FIG. 3) located near the stopper 131.
Reference proximity switch 132 is provided.
It is connected to the control device C (see FIG. 6).

As shown in FIGS. 1 and 2, a rotary encoder 17 is provided on the base 11, and the rotary encoder 17 and the cross beam 13 are provided.
Between them, a wire 171 is stretched. This rotary encoder 17 is also connected to the control device C.

Therefore, the proximity switch 132 controls the first socket 14, the second socket 15, and the strut 16
Engagement holes 14a, 15a, 16a and stopper 131
When the wire 171 having one end connected to the cross beam 13 is extended by extending and contracting the hydraulic cylinder 12, the amount of extension is converted into a rotation amount, and the hydraulic cylinder 12 is rotated. 12 can be detected.

As described above, the detection signals of the proximity switch 132 and the rotary encoder 17 provided in each of the building jack devices 10 are input to the control device C, and the control device C is driven based on these input signals. An output signal is supplied to the electric motor to control the discharge amount from the hydraulic pump P, so that the hydraulic cylinder 12 is extended and contracted in synchronism.

Specifically, when the hydraulic cylinder 12 is extended, a rotary encoder 17 which operates in synchronization with the extension of the hydraulic cylinder 12 detects the amount of extension. At this time, the supply of the pressure oil to the hydraulic cylinder 12 that first generated the detection signal of the set pitch is stopped so that the extension amount of each hydraulic cylinder 12 matches the set pitch, and the other hydraulic cylinders 12 Are to supply the pressure oil again after the detection signals of the set pitch are all generated, and to restart the extension of the hydraulic cylinder 12. As a result, all the hydraulic cylinders 12 have the same amount of extension at every set pitch, and such control is repeated until the hydraulic cylinders 12 reach the set height position, whereby the hydraulic cylinders 12 are extended in synchronization.

Therefore, when the building jack device 10 jacks up the roof or the like, even if the load applied to each building jack device 10 is not constant, the amount of extension of the hydraulic cylinder 12 is the same for each set pitch. , The lifting speed of each hydraulic cylinder 12 can be kept uniform, and the whole can be balanced and jacked up without causing inclination or distortion on the roof or the like.

The tuning control of the hydraulic cylinder 12 may use other control means.

Next, such a construction jack device 10 will be described.
The case where a house is constructed by using is described.

First, the floor beam 3 on the second floor is placed on the concrete foundation 1 via the plurality of temporary members 4, and further, the hut beam is placed on the floor beam 3 via the plurality of temporary members 4. 2 is placed. Here, in the construction jack device 10, the cross beam 13 is connected to the cylinder tube 12 of the hydraulic cylinder 12.
1, a first socket 14 is connected to the cross beam 13 via a stopper 131, and a second socket 15 is mounted on a pedestal 112 on a columnar member 111 integrated with the base 11. Mated. Then, such a plurality of architectural jack devices 10 are installed at set locations, and each of the architectural jack devices 1
The hut beam 2 and the floor beam 3 are supported by the first socket 14 and the second socket 15 provided at 0, respectively. In this case, as illustrated in FIG. 6, at least four or more portions of the floor beam 3 are supported by the building jack device 10, and a necessary position, for example, a balcony portion is supported in accordance with an increase in load thereafter. The construction jack device 10 may be added.

After the hut beam 2 and the floor beam 3 are supported by the building jack device 10, the roof A1 is assembled on the hut beam 2 and completed (FIGS. 7, 8 and 1).
5). For example, as shown in FIG. 1, the roof A <b> 1 is formed by stacking a bundle 22 on a hut beam 2, combining a main house 23, and the like, and then covering a field board 24 and a roof material 25 thereon. At this time, the hut beam 2 is about 500 mm to 100
Since it is placed at a height of 0 mm, the roof A1 can be safely assembled at a height of about 1,000 mm to 2,000 mm even at a high place, and thus a scaffold for working at a high place is constructed. No need.

Next, the completed roof part A1 is raised to the set height position. That is, first, the cross beam 13
Stopper 131 is engaged with engagement hole 14a of first socket 14.
And the control device C confirms that the cross beam 13 and the first socket 14 are connected. Then, by supplying pressure oil to each hydraulic cylinder 12,
Extend in synchrony. As the hydraulic cylinder 12 extends, the first socket 14 is pushed up, and as a result, as shown in FIG.
As shown in (1), the hut beam 2 supported by the first socket 14 is lifted together with the roof portion A1.

When the hydraulic cylinder 12 is fully extended in this way, a plurality of posts 18 (see FIG. 16) are arranged at intervals between the hut beam 2 and the floor beam 3, and then the raised first socket 14 Between the pedestal 112 on the floor beam 3
The struts 16 are connected (see FIG. 17). Thus, by disposing the post 18 prior to the connection of the strut 16, the first jack 10 of the building jack device 10 should be used.
Even when the socket 14 comes off the hut beam 2, the roof unit A1 and the hut beam 2 can be supported, and the roof unit A
1 can ensure the safety of workers working below.

In this case, since the strut 16 is slightly shorter than the total stroke of the hydraulic cylinder 12, the tapered portion 162 at the distal end is fitted to the socket portion 141 of the first socket 14, and the socket portion 163 at the base end is connected to the floor beam. 3 can be easily carried out by fitting it to the upper pedestal 112. By engaging the notch 16b of the first strut 16 with the pedestal 112, the engaging hole 16a of the strut 16 can be opposed to a position where the stopper 16 of the cross beam 13 can be engaged.

The floor beam 3 supporting the strut 16
Is supported via the columnar member 111 and the second socket 15 integrated with the base 11, so that no bending occurs.

Next, the stopper 13 of the cross beam 13
After pulling out 1 from the engagement hole 14a of the first socket 14, each hydraulic cylinder 12 is contracted at a time. Along with this, the roof A supported by the hydraulic cylinder 12
1 is supported by the floor beam 3 via the first socket 14 and the first strut 16.

When the hydraulic cylinder 12 is reduced to the position shown in FIG. 18, the stopper 131 of the cross beam 13 is engaged with the engagement hole 16a of the first strut 16, and the cross beam 13 and the first strut 16 are connected. The hydraulic cylinder 12 is extended again to lift the roof A1 and the hut beam 2.

As a result, the roof A1 and the hut beam 2 are further raised by an amount corresponding to the stroke of the hydraulic cylinder 12, so that the raised first strut 16 and the pedestal 1 of the floor beam 3 are raised.
The second strut 16 is connected to the second strut 16. Also in this case, prior to the connection of the second strut 16, a plurality of posts 18 are provided with a space between the hut beam 2 and the floor beam 3.
In this case, the roof A1 and the hut beam 2 are supported and the safety of the worker working below the roof A1 is ensured in case of emergency.

When the first strut 16 is raised by the hydraulic cylinder 12, the control device C checks the engagement between the stopper 131 and the engagement hole 16 a before supplying the hydraulic oil to the hydraulic cylinder 12. .

In this manner, the set number of struts 16
Is repeated, the roof A1 and the hut beam 2 are raised to the set height position. In this case, when the roof A1 and the hut beam 2 are lifted by the extension of the hydraulic cylinder 12, the gap between the raised hut beam 2 and the floor beam 3 corresponds to the stage before the strut 16 is connected each time. By disposing the post 18 having a length corresponding to that, the roof A1 and the hut beam 2 are supported (see FIGS. 9 and 19).

In this state, a wall shaft set 50, an outer wall material 51, a small roof 52, a balcony 53, a window frame sash 54, and the like of the house upper part A2 (the second floor portion) are assembled between the hut beam 2 and the floor beam 3, Complete the exterior work (FIGS. 10, 11 and 2)
0).

The post 18 is sequentially removed from the vicinity thereof by attaching the wall frame 50 during exterior work.

When the construction of the upper part A2 of the house is completed, the operation of removing the lower strut 16 while the upper strut 16 is supported by the hydraulic cylinder 12 is repeated, contrary to the case of jacking up, so that the upper part A2 of the house and the shed are repeated. All the struts 16 and the first sockets 14 supporting the beam 2 are removed. That is, by reducing the hydraulic cylinder 12, the lowermost strut 16
Is fitted to the pedestal 112 of the floor beam 3, and then the stopper 131 is pulled out from the engaging hole 16a of the lowermost strut 16. Next, the hydraulic cylinder 12 is extended, and the stopper 131 is engaged with the engaging hole 16a of the strut 16 thereon. Then, the hydraulic cylinder 12 is extended to remove the load on the lowermost strut 16, and then the lowermost strut 16 is removed. Next, the hydraulic cylinder 12 is contracted to fit the second strut 16 from the bottom to the pedestal 112 on the floor beam 3.
From the engaging hole 16a of the lower strut 16,
The strut 16 is sequentially removed by repeating the extension of the hydraulic cylinder 12 and the engagement of the upper strut 16 of the stopper 131 with the engagement hole 16a.

In this case, each strut 16 has a tapered portion 162 having a socket portion 163 of the upper strut 16.
Alternatively, since it is only fitted into the socket portion 141 of the first socket 14, if the load on the lower strut 16 is removed, the lower strut 16 can be easily connected to the upper strut 16 or the first socket 14. Can be removed. And strut 1
6 and the stopper 131 and the engagement hole 1
6a is in the proximity switch 1
32, and the detection result is confirmed by the control device C.

At the time of removing the strut 16 and the first socket 14, the upper part A 2 of the house is supported by the floor beam 3.

Next, the upper part A2 of the house and the floor beam 3 are lifted to a predetermined height. That is, in order to lift the floor beam 3, the fastening of the half cross beam 13 is released, and after removing from the upper flange 121a of the cylinder tube 121, as shown in FIG. The cross beam 13 is attached to a lower flange 121b provided substantially at the center of the cylinder tube 121. At this time, as the cross beam 13 moves below the floor beam 3, the second socket 15 supporting the floor beam 3 is inserted into the through hole 13a of the cross beam 13.

Next, the stopper 1 of the cross beam 13
After engaging the engaging portion 31 with the engaging hole 15a of the second socket 15, the hydraulic cylinder 12 is extended to raise the second socket 15 in the same manner as when the roof portion A1 and the hut beam 2 are lifted as described above. Let it. Raised second socket 15
The first strut 16 is inserted between the base 11 and the pedestal 112 on the columnar member 111 integrated with the base 11, and the hydraulic cylinder 12
And the stopper 131 is engaged with the engagement hole 16a of the first strut 16 connected to the second socket 15,
The step of extending the hydraulic cylinder 12 is repeated again to raise the house upper part A2 and the floor beam 3 to the set height position (see FIGS. 12 and 22).

When connecting such struts 16, prior to the connection, a post 18 having a length corresponding to the distance between the floor beam 3 and the concrete foundation 1 lifted by the extension of the hydraulic cylinder 12 is provided. Even if the second socket 15 of the jack device 10 for a building is displaced from the floor beam 3, the point that the upper part A 2 of the house and the floor beam 3 are supported so as not to fall is when the roof part A 1 is lifted. Is the same.

When the house upper part A2 is lifted to the set height position, it is necessary to replenish the building jack device 10 for a new increase in load such as a balcony portion.

When the upper part A2 of the house is lifted to the set height position, as shown in FIGS. 13, 14 and 23,
Between the floor beam 3 and the concrete foundation 1, the lower part of the house A3 (1
Floor section) wall frame set 70, outer wall material 71, window frame sash 72,
The house A4 is completed by assembling the entrance door 73 and the like and performing exterior work.

As shown in FIG. 24, between the floor beam 3 and the concrete foundation 1, and although not shown,
A plurality of punter frames 19 each having a pair of frame members 191 connected in a bendable manner are attached at a predetermined interval between the floor member 3 and the floor beam 3.
At the time of jacking up the roof 1 and the upper part A2 of the house, even if a horizontal force (lateral load) is generated due to an earthquake, wind, or the like, the roof part is supported so as not to collapse.

After the roof A1 has been completed on the concrete foundation 1 in advance, the jack device 1 for building
The hydraulic cylinder 12 is expanded and contracted, and the plurality of struts 16 are connected to lift the roof A1 to a set height position. In the space below the lifted roof A1, the wall frame 50 of the house upper part A2, the outer wall material 51, etc., then change the attachment position of the cross beam 13, expand and contract the hydraulic cylinder 12 again, and connect a plurality of struts 16 to raise the upper part A2 of the house to the set height position. The lower part of the house A3 in the space below the upper part A2
By assembling the wall frame assembly 70 and the outer wall material 71, there is no need to use a working machine such as a crane truck,
In addition, temporary facilities such as scaffolds for working at heights are not required, and a two-story house can be built even on a small land. It is possible to work without performing high-altitude work.

In addition, since the roof A1 is completed in advance, the material can be installed without being affected by the weather, without the material being wetted by the weather and the like, thereby deteriorating the quality. Can be.

Moreover, even if the first socket 14 comes off the hut beam 2 or the second socket 15 comes off the floor beam 3 at the time of jacking-up by the construction jack device 10, the post 18 will remain Because it supports the load of A1 and the upper part of the house A2, the roof part A1 and the upper part A of the house
2 can ensure the safety of workers working in the lower space.

Incidentally, in the above-described embodiment,
Although the construction method of the two-story house has been described, the invention can be applied to the construction of a one-story house.

Hereinafter, a method of building a one-story house will be described.

First, the cross beam 13 of the building jack device 10 is moved to the lower flange 1 of the cylinder tube 121.
21b, and the cross beam 13 is connected to the socket 15 fitted to the pedestal 112 on the columnar member 111 by engaging a stopper 131. Thereafter, as shown in FIG. 25, the hut beam 2 is placed on the concrete foundation 1 via the temporary material 4, and the required number of hut beams 2 are set around the concrete foundation 1 to provide a jack device 10 for building. In the socket 15. Then, after supporting the hut beam 2 with the building jack device 10, the roof portion A1 is assembled and completed on the hut beam 2, and the hydraulic cylinder 12 of the building jack device 10 is extended to extend the roof portion A1 and the hut beam. 2 is lifted via a socket 15 connected to the cross beam 13. When the hydraulic cylinder 12 is extended, the first strut 16 slightly shorter than the entire stroke of the hydraulic cylinder 12 is inserted between the raised socket 15 and the pedestal 112 on the columnar member 111 integrated with the base 11.

The stopper 131 of the cross beam 13 is pulled out from the engagement hole 15a of the socket 15, and the hydraulic cylinders 12 are reduced at the same time to support the load on the roof A1 via the socket 15, the first strut 16, and the columnar member 111. I do. Next, after the stopper 131 of the cross beam 13 is engaged with the engagement hole 16a of the first strut 16, the hydraulic cylinder 12 is extended again,
Then, the roof A1 is lifted through the socket 15 and the first strut 16, and the second strut 16 is connected between the first strut 16 and the pedestal 112 on the columnar member 111.

Hereinafter, the connecting work of the strut 16 and the engaging hole 16a between the cross beam 13 and the strut 16 will be described.
The connection operation by the stopper 131 and the release operation thereof, and the expansion / contraction operation of the hydraulic cylinder 12 are repeated to repeat the roof A
After raising the hut beam 2 and the hut beam 2 to the set height position, assembling the wall frame assembly 70, the outer wall material 71, the window frame sash 72, the entrance door 73, etc. between the hut beam 2 and the concrete foundation 1 is performed. The exterior work should be completed.

In the construction of such a one-story house, when connecting the struts 16, prior to the connection of the struts 16, the space between the hut beam 2 lifted by the extension of the hydraulic cylinder 12 and the concrete foundation 1 is provided. Is provided, and even if the socket 15 of the jack device 10 for building is detached from the hut beam 3, it is necessary to support the roof A1 and the hut beam 2 so as not to fall. This is the same as in the case of a multi-storey house.

[0059]

As described above, according to the first aspect of the present invention, after the roof portion is completed in advance on the concrete foundation, the hydraulic cylinder of the jack device for construction is expanded and contracted, and a plurality of struts are provided. , Lift the roof to the set height position, assemble the wall frame at the top of the house, outer wall material, etc. in the space below the lifted roof, then change the mounting position of the cross beam, and again The upper part of the house is connected to multiple struts, and the upper part of the house is lifted up to the set height position. Posts that support vertical loads between the shed beam and the floor beam and between the floor beam and the concrete foundation prior to connecting the struts when lifting the shed beam or floor beam. With this arrangement, even if the jack device for a building comes off the hut beam or floor beam, it can be supported without dropping the roof, etc., and workers who work in the space below the roof Safety can be ensured.

According to the third aspect of the present invention, the hydraulic cylinder of the building jack device is expanded and contracted after the roof is completed on the concrete foundation in advance.
Connect multiple struts and lift the roof to the set height position.When assembling the wall frame, outer wall material, etc. in the space below the lifted roof, when lifting the shed beam by extending the hydraulic cylinder, By arranging a post supporting the vertical load between the hut beam and the concrete foundation prior to the connection, even if the building jack device comes off the hut beam, the roof part will not be dropped. It can be supported, and the safety of workers working in the space below the roof can be ensured.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a first step of a method for building a two-story house according to the present invention with a part of the steps omitted.

FIG. 2 is a front view showing the construction jack device in a state where a hydraulic cylinder is extended and a first socket is lifted.

FIG. 3 is a partial cross-sectional view showing a relationship between a cross beam and a first socket (second socket) of the architectural jack device, partially omitted.

FIG. 4 is a front view showing a relationship between a base, a second socket, and a floor beam of the building jack device.

FIG. 5 is a half sectional view of a strut.

FIG. 6 is a schematic diagram showing a relationship between a building jack device and a control device.

FIG. 7 is a front view of a roof portion implemented on a concrete foundation.

FIG. 8 is a front view of a roof completed on a concrete foundation.

FIG. 9 is a front view showing a state in which the completed roof is jacked up to a set height position.

FIG. 10 is a front view showing a state in which a wall shaft assembly on the second floor is assembled between a hut beam and a floor beam.

FIG. 11 is a front view of a state where a second-floor exterior is completed on a concrete foundation.

FIG. 12 is a front view of a state where the upper part of the house is jacked up to a set height position.

FIG. 13 is a front view showing a state in which a wall shaft assembly of the first floor is assembled between a floor beam and a concrete foundation.

FIG. 14 is a front view of a house in which the exterior of the first floor is completed.

FIG. 15 is an explanatory view showing a step of implementing a roof on a concrete foundation.

FIG. 16 is an explanatory view showing a step of jacking up a completed roof using a building jack device.

FIG. 17 is an explanatory view showing a step of connecting a first strut under a first socket.

FIG. 18 is an explanatory view showing a step of connecting the first strut and the cross beam.

FIG. 19 is an explanatory view showing a step of connecting a plurality of struts and jacking up a roof portion to a set height position.

FIG. 20 is an explanatory diagram showing a step of assembling a wall shaft assembly between a hut beam and a floor beam.

FIG. 21 is an explanatory view showing a step of attaching a cross beam to a central portion of a cylinder tube and connecting the cross beam to a second socket.

FIG. 22 is an explanatory view showing a step of jacking up the upper part of the house to a set height position.

FIG. 23 is an explanatory view showing a step of assembling the first-floor wall frame assembly between the floor beam and the concrete foundation.

FIG. 24 is a perspective view showing a post disposed between a floor beam and a concrete foundation together with a panta frame when jacking up a house upper part and a floor beam to a set height position.

FIG. 25 is an explanatory view showing a first step of a method of building a one-story house according to the present invention, with a part thereof being omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete foundation 2 Hut beam 3 Floor beam 4 Temporary material 10 Construction jack device 11 Base 112 Pedestal 12 Hydraulic cylinder 121 Cylinder tube 121a, 121b Flange 122 Piston rod 13 Cross beam 131 Stopper 132 Proximity switch 14 1st socket 15 2nd socket 14a, 15a Engagement hole 14b, 15b Notch 141, 151 Socket 16 Strut 16a Engagement hole 16b Notch 162 Taper 163 Socket 17 Rotary encoder 18 Post 19 Panta frame P Pump C Controller A1 Roof A2 A3 Lower house A4 House

Claims (4)

[Claims] 1. A hydraulic machine comprising: two hydraulic cylinders each having a piston rod connected in parallel to a base; and a cross beam that can be selectively attached to an upper portion or a substantially central portion of a cylinder tube of the hydraulic cylinders. The first socket is detachably connected to the cross beam attached to the upper part of the cylinder tube via a stopper,
A plurality of architectural jack devices constructed by erecting a second socket on a base are respectively installed at predetermined positions, and a second-floor floor beam placed on a concrete foundation via a temporary material is placed in a second position. After supporting the hut beam placed on the floor beam via the temporary material with the first socket while supporting with the socket, and assembling the roof part on the hut beam to complete it, After the hydraulic cylinder is extended to lift the roof and the hut beam through the first socket, the first strut is connected between the first socket and the floor beam, while the cross beam is connected to the first socket. Is released, the hydraulic cylinder is reduced to support the roof and the shed beam via the first socket, the first strut, and the floor beam, and then, after connecting the cross beam and the first strut, the hydraulic cylinder is re-engaged. Raise the roof and hut beam via the first socket and the first strut, connect the second strut between the first strut and the floor beam, and connect the strut with the above set number of struts, cross beam and After repeating the connection and release of struts and the work of expanding and contracting the hydraulic cylinder to raise the roof and hut beam to the set height position, the wall frame at the top of the house, the outer wall between the hut beam and the floor beam After assembling the timber, small roof, balcony, window frame sash, etc., remove the first socket and all struts that supported the top of the house, and then release the cross beam from the top of the cylinder tube. To the substantially central portion of the cylinder tube below the floor beam, and connect the cross beam and the second socket. After the hydraulic cylinder is extended to lift the top of the house and the floor beam through the second socket, the first strut is connected between the second socket and the base, while the connection between the cross beam and the second socket is released. Then, the hydraulic cylinder is contracted to support the upper part of the house and the floor beam via the second socket and the first strut. Then, after connecting the cross beam and the first strut, the hydraulic cylinder is extended again to increase the upper part of the house. And lifting the floor beam through the second socket and the first strut, connecting the second strut between the first strut and the base, connecting the strut with the set number, connecting the cross beam and the strut, After repeating the release operation and the hydraulic cylinder expansion and contraction operation to raise the top of the house and the floor beam to the set height, the floor beam and concrete In the construction method of a house where the lower part of the house is assembled with the wall frame, outer wall material, window frame sash, entrance door, etc. between the foundation and the floor, the strut is connected when the shed beam or floor beam is lifted by the extension of the hydraulic cylinder. A method for constructing a house, comprising arranging posts for supporting a vertical load between a shed beam and a floor beam and between a floor beam and a concrete foundation in advance. 2. A pant frame for supporting a lateral load in advance between the hut beam and the floor beam and between the floor beam and the concrete foundation.
The construction method of the house described. 3. A hydraulic cylinder comprising: two hydraulic cylinders each having a piston rod connected in parallel to a base; and a cross beam attached to a cylinder tube of the hydraulic cylinder. A socket is attached to and detached from the cross beam via a stopper. A plurality of construction jack devices, which are freely connected, are installed at predetermined positions, and a hut beam placed on a concrete foundation via a temporary material is supported by a socket. After the roof portion is assembled and completed, the hydraulic cylinder of the building jack device is extended to lift the roof portion and the hut beam through the socket, and then the first strut is connected between the socket and the base. , Disconnect the cross beam from the socket,
The hydraulic cylinder is contracted to support the roof and the shed beam via the socket and the first strut, and then, after connecting the cross beam and the first strut, the hydraulic cylinder is extended again to connect the roof and the shed beam. Lifting up through the socket and the first strut, connecting the second strut between the first strut and the base, connecting the strut of the above set number, connecting and releasing the cross beam and the strut, and hydraulic cylinder A house that assembles wall frames, outer wall materials, window frame sashes, entrance doors, etc. between the hut beam and the concrete foundation after raising and lowering the roof part and hut beam to the set height position by repeating the expansion and contraction work of In the method of construction, when the hut beam is lifted by the extension of the hydraulic cylinder, the hut beam and the concrete base are connected before the struts are connected. The method of building a house, characterized by disposing the posts for supporting the vertical load between. 4. The method of building a house according to claim 3, wherein a panta frame for supporting a lateral load is disposed between the hut beam and the concrete foundation in advance.