JP2682778B2 - Construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which a roof portion is first completed on a concrete foundation, and the roof portion is lifted by a jacking device for construction. It is related to the erection method of assembling.

[0002]

2. Description of the Related Art As a method of implementing a prefabricated house, for example, 1
A construction method of assembling houses in order from the floor to the roof is known.

[0003]

However, in order to perform construction work using a mobile crane, it is necessary to have a space in which the mobile crane can be carried into a construction site and where the mobile crane can work. And Therefore, when the residential area is dense or the approach road is narrow, the crane vehicle cannot be carried in, and even if the crane vehicle can be carried in, it cannot be used if the site area is small. In addition, since the work is to be piled up in order from the first floor to the roof, work at high places is indispensable, and temporary facilities such as safety nets and scaffolds for work at high places are required. In addition to having to secure the area, the construction cost is required.
The present invention has been made in view of the above problems, and to build a house while ensuring the safety of the worker even in a small land without using a working machine such as a crane truck. It relates to the construction method that can be done.

[0004]

SUMMARY OF THE INVENTION The present invention comprises two hydraulic cylinders in which the tips of piston rods are arranged side by side on a base and connected to each other, and a cross beam connected to the cylinder tubes of these hydraulic cylinders. , The cross-beam is detachably connected to the unloading column via a pin, and a plurality of construction jack devices each having a supporting column erected on the base are installed at predetermined positions. After supporting at least four points of the hut beam placed via the temporary material on the unloading columns connected to each jacking device for construction, the roof part is assembled on the hut beam to be completed, and then, After extending the hydraulic cylinder of the construction jack device to lift the roof and the shed beam through the unloading column, the first additional unloading column is connected between the unloading column and the supporting column, and Release the connection between the column and the unloading column to reduce the hydraulic cylinder to support the roof and shed beam through the unloading column, the first additional unloading column and the supporting column, and then the cross beam and the After connecting the first additional unloading column, the hydraulic cylinder is extended again to lift the roof portion and the shed beam through the unloading column and the first additional unloading column, and the first additional unloading column is supported. Connect the second additional unloading column to the column, connect the additional unloading columns with the above set number, connect the cross beam to the additional unloading column and release it, and expand and contract the hydraulic cylinder. Characteristically, after repeatedly raising the roof and the shed beam to the set height position, the wall shaft assembly, outer wall material, window frame sash, entrance door, etc. are assembled between the shed beam and the concrete foundation. It is a thing.

[0005]

[Operation] After the roof part is completed on the concrete foundation first, the construction jack device is expanded and contracted, and a plurality of extension loading columns are connected to lift the roof part to the set height position. Assemble wall shafts and outer wall materials in the space below the roof.

Therefore, it is not necessary to use a working machine such as a crane truck, and temporary equipment such as a scaffold for working at high places is not required, so that a flat house can be constructed even in a small land. Since the work is performed almost on the ground and in the vicinity thereof, the worker can work safely, and temporary equipment such as a scaffold for working at high places is not required, and the construction cost can be reduced. Moreover,
Since the roof part is completed in advance, the quality of the material will not be deteriorated due to weather and rain, and the construction can be performed regardless of the weather, and the construction period can be shortened.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the construction method according to the present invention.

A second floor floor beam 3 is placed on a concrete foundation 1 via a temporary material 4 serving as a spacer, and the hut beam 2 is further placed on the floor beam 3 via a temporary material 4 serving as a spacer. It is mounted.

The temporary member 4, the shed beam 2 and the floor beam 3 are made of H-shaped steel, and each of them has a height of 100 mm to 200 mm.

Reference numeral 31 denotes a beam connection of the floor beam 3, and reference numeral 21 denotes a beam connection of the hut beam 2.

The hut beam 2 is placed at a position of about 500 mm to 1000 mm above the ground in FIGS. 1, 2 and 10. In this state, the hut beam 2 is connected to the building jack device 100.
It is supported by the unloading column 117 of A. In order to prevent the deflection of the floor beam 3, the support pillar 1 provided in the architectural jack device 100A is used.
It is supported at 70.

When the roof portion A1 is formed, the construction jack device 100A is arranged at four positions on the floor beam 3 as illustrated in FIG.

However, when the upper part A2 of the building is finished, it is preferable to newly add a building jack device 100B to a balcony or the like so as to withstand a large load.

According to the construction method according to the present invention, a roof part A1 is assembled on a concrete foundation 1 in order from an upper object, and the assembled parts are assembled into building jack devices 100A and 100A.
The feature is that the building is constructed by gradually ascending in B.

An architectural jack device 100 (100A, 100B) that is sequentially pushed upward from the top of the finished building.
Will be described.

Reference numeral 101 denotes two hydraulic cylinders standing in parallel. The hydraulic cylinder 101 is a cylinder tube 10.
2 and a piston rod 103 protruding downward from the cylinder tube 102. By supplying hydraulic oil from the pump 200 to the cylinder tube 102 via the hydraulic pipe 201, the two piston rods 103 are extended and contracted synchronously. Reference numeral 202 denotes a control device, and reference numeral 203 denotes a control code (see FIG. 19).

The upper portions of the cylinder tubes 102 are connected at predetermined intervals using a cross beam 104. The cross beam 104 is divided into two parts and is detachable from the cylinder tube 102. 10
8, 180 are flanges for locking the cross beam 104.

The lower ends of the piston rods 103 are connected by a base 105 of a flat plate member.

A pedestal 106 is fixed to the base 105 between the piston rods 103, and supports a support column 170 and an extension support column that are erected in parallel with the hydraulic cylinder 101.

The cross beam 104 is connected to the cylinder tube 1
The position of the flange 108 formed in the upper part of the upper part 02 and the position of the flange 180 formed in the central part can be changed.

In the center of the cross beam 104, the loading column 1
17, an additional loading column 107, a supporting column 170, and a through hole 140 that penetrates the extending supporting column upright. Unloading column 117, additional unloading column 107, additional unloading columns 107, support column 170 and additional support column 17
1. The support pillars 171 can be formed of pipes having the same diameter, and can be connected to each other vertically.

The supporting column 170 has exactly the same structure as the unloading column 117, though the length differs. In addition, although the lengths are different, the additional support columns 171 are additional load columns 1
It is the same configuration as 07.

The extension column 107 and the extension column 171 are formed of a pipe-like member slightly shorter than the entire stroke of the piston rod 103, and a tapered portion 130 whose diameter is gradually reduced is provided at the tip, and is provided inside the base end. Is the tapered part 1
A socket 131 having a shape that fits around the outer periphery of 30 is provided so that it can be added.

The lower end of the unloading column 117 is similarly provided with a socket 131 having a shape that fits into the tapered portion 130 of the reloading column 107.

The pedestal 106 fixed on the base 105 also has a tapered portion 161 gradually reduced in diameter as going upward, and the support column 170 and the socket 131 formed at the lower end of the extension column 171 are fitted. In addition, floor beam 3
A pedestal 160 similar to the pedestal 106 is fixed on the upper side, and the socket 131 formed on the unloading column 117 and the reloading unloading column 107 is fitted.

The upper end of the unloading column 117 and the supporting column 17
0, a receiving member (not shown) is provided at the upper end of the extension supporting column 171 to support the hut beam 2 and the floor beam 3.

An engaging hole 150 is formed at a predetermined position on the outer peripheral surface of the unloading column 117, the extended unloading column 107, and the support column 170, and the pin 111 provided on the cross beam 104 is made to protrude. This pin 111 is provided with a through hole 140 of the cross beam 104.
The pin 111 is moved in and out by operating the handle (not shown). The pin 111 can be easily moved in and out of the through hole 140 by a ratchet mechanism operated by operating a handle.

The formation position of the engagement hole 150 is determined by the unloading column 117.
And the supporting column 170, at the upper portion of the outer peripheral surface, at the extension column 107, at the lower portion of the outer peripheral surface, and at the extending column 171, slightly above the center of the outer peripheral surface.

When the pin 111 is pushed into and engaged with the engaging hole 150 formed in the unloading column 117 penetrating through the through hole 140, the expansion and contraction force of the hydraulic cylinder 101 is transmitted to the unloading column 117 and the like.

The state of engagement between the pin 111 and the engagement hole 150 is detected by a proximity switch (not shown) provided on the cross beam 104, and a signal is sent from the control code 203 to the control device 202 so that it can be confirmed.

A notch recess 190 is formed in the outer periphery of the base end of the loading column 117, the extension column 107, the support column 170, and the extension column 171, and the convex portion 162 formed in the tapered portion 161 of the pedestals 106 and 160. It can be engaged. This notched concave portion 190 is a convex portion 162
When engaged with the unloading column 117, the reloading unloading column 10
7, the support pillar 170, the engaging hole 150 formed in the extension support pillar 171 and the pin 111 of the cross beam 104 can be opposed to each other.

On one side of the hydraulic cylinder 101, the piston rod 10 extends and contracts in synchronization with the hydraulic cylinder 101.
A stroke sensor 120 for detecting the amount of expansion and contraction of the third sensor is provided in parallel. The stroke sensor 120 includes a guide 121 formed of a cylindrical member fixed to the side of the cylinder tube 102, and a rod 122 having an upper portion slidably in contact with the inside of the guide 121 and a lower end fixed to the base 105. A proximity switch is fixed to the upper end of the rod 122 that slides inside the guide 121 in proximity to the inner circumference of the guide 121. The proximity switch penetrates the side surface of the guide 121 and is provided with detection holes provided at predetermined intervals. A signal is sent from the control code 203 to the control device 202 each time the signal passes through 123.

After the floor beam 3 and the hut beam 2 are supported by the above-mentioned jack device for construction 100A, the roof section A1 is assembled on the hut beam 2. Hut beam 2 is approximately 500mm-10 above ground
Since it is placed at a location of 00 mm, the roof A1 can be safely assembled at a location of about 1000 mm to 2000 mm even at a high place.

The structure of the roof part A1 is, for example, that a bundle 22 is erected on the hut beam 2 and a main house 23 is combined therewith, and a field board 24 and a roof material 25 are roofed thereon. Reference numeral 26 denotes a crosspiece at the eaves, and 27 denotes a gable (see FIG. 1).

After assembling the roof A1 on the concrete foundation 1 in this manner, the building jack device 100A,
The building is constructed by sequentially assembling each part using 100B. The construction procedure will be described with reference to the front view of the appearance shown in FIGS. 2 to 9 and the partial cross-sectional views shown in FIGS. The operation of the construction jack device 100 is shown in FIG.
Description will be made with reference to the front views shown in FIGS.

First, the assembled roof portion A1 is raised to a predetermined height. Hut beam 2 and floor beam 3 are at least 4
The points are supported by the building jack device 100A (see FIG. 19).

The control device 202 engages the pin 111 with the engagement hole 150, and causes the cross beam 104 and the unloading column 11 to engage.
Check that 7 is connected.

Hydraulic oil is supplied to each hydraulic cylinder 101 to synchronously extend and drive the piston rod 103. As the piston rod 103 extends, the lifting column 117 is pushed up, and the hut beam 2 rises together with the roof A1 (FIG. 1).
1, see FIG. 20).

When the piston rod 103 is fully extended in this way, as shown in FIG. 12 and FIG.
Is inserted. At this time, the notch recess 190 formed at the lower end of the first additional loading column 107
Is engaged with the convex portion 162 formed on the pedestal 160, the engaging hole 150 of the reloading pillar 107 is arranged at a position where it can be engaged with the pin 111 of the cross beam 104.

The additional loading column 107 is the piston rod 1
Since this is slightly shorter than the total stroke of 03, this operation can be easily performed by fitting the tapered portion 130 at the distal end into the socket 131 of the loading column 117 and placing the base end on the pedestal 160 on the floor beam 3.

The floor beam 3 supporting the additional loading column 107 has a supporting column 170 interposed between the floor beam 3 and the base 105 to prevent bending.

Next, after the pin 111 of the cross beam 104 is pulled out from the engagement hole 150 of the unloading column 117, the hydraulic cylinders 101 are contracted at the same time. Along with this, the load of the roof A1 supported by the hydraulic cylinder 101 is applied to the first additional loading column 107. The lower end of the first additional loading column 107 is engaged with a pedestal 160 fixed on the floor beam 3.

When the hydraulic cylinder 101 is contracted to the position shown in FIG. 22 in this manner, the pin 111 of the cross beam 104 is pushed into the engaging hole 150 of the first extension column 107 and locked again. To elevate the hut beam 2 and the roof A1.

As a result, the hut beam 2 and the roof A1 are further raised by an amount corresponding to the stroke distance of the hydraulic cylinder 101, so that the first ladder loading column 107 and the pedestal 160 of the floor beam 3 are raised. 2 additional loading columns 10
Add 7

When raising the first additional loading column 107 from the most contracted position of the piston rod 103,
After the control device 202 confirms the engagement state between the pin 111 and the engagement hole 150, the hydraulic oil is supplied to the hydraulic cylinder 101.

By repeating the above operation until a predetermined number of extension columns 107 are added, the hut beam 2 and the roof A1 are raised to a predetermined height (FIGS. 4 and 1).
5, see FIG. 26).

In this state, the wall frame 50, the outer wall material 51, the small roof 52, the balcony 53, the window frame sash 54 and the like of the upper part A2 of the building (the second floor) are assembled between the hut beam 2 and the floor beam 3. I do.

When the construction of the upper part A2 of the building is completed, all the additional loading columns 107 and 117 which support the hut beam 2 are once removed, and then the floor beam 3 and the upper part A2 of the building are raised to a predetermined height. lift.

An additional loading column 1 supporting the hut beam 2
In order to remove 07, contrary to the jack-up operation, the work of removing the lowermost reloading column 107 while the upper reloading column 107 is supported by the hydraulic cylinder 101 is repeated. In this case, since each additional unloading column 107 is connected by the tapered portion 130 and the socket 131, the shed 2
Is supported, and when the load on the lower extension landing column 107 is removed, the lower extension landing column 107 can be easily separated from the upper extension landing column 107.

That is, first, the hydraulic cylinder 101 is raised to the most extended position, and the lowermost loading column 107 is extended.
After removing the load on the lowermost loading column 10
Remove 7. Next, the hydraulic cylinder 101 is contracted to add the second-stage additional unloading column 107 from the bottom to the pedestal 1 on the floor beam 3.
60.

The hydraulic cylinder 101 is extended to
1 is engaged with the engaging hole 150 of the additional loading column 107 thereon. At this time, in order to extend the hydraulic cylinder 101, it is necessary to pull out the pin 111 from the engagement hole 150 of the reloading pillar 107 abutting on the pedestal 160.

After the pin 111 is pulled out from the engagement hole 150, the control device 202 confirms that all the proximity switches are not supported, and then extends the hydraulic cylinder 101.

When the hydraulic cylinder 101 is raised to a predetermined position, the pin 111 is engaged with the engaging hole 150 of the upper reloading column 107. Thus, the hydraulic cylinder 10
While expanding and contracting 1, the additional unloading columns 107 are sequentially removed from the lowermost stage.

Next, in order to lift the floor beam 3, the cross beam 104 is moved below the floor beam 3, as shown in FIGS. In other words, the half cross beam 1
04 and loosen the cylinder tubes 102, 10
2, the cross beam 104 is fastened again at the flange 180 provided at a predetermined position in the center of the cylinder tubes 102, 102, and the cylinder tubes 102 are connected to each other.

In this way, the cross beam 104 is moved below the floor beam 3, and the support column 170 supporting the floor beam 3 is penetrated through the through hole 140 of the cross beam 104.

After the pins 111 of the cross beam 104 are pushed into and engaged with the engagement holes 150 formed in the support columns 170, the hydraulic cylinder 101 is extended similarly to the lifting of the hut beam 2 and the roof A1, and the support columns 170 are extended. To rise. The supporting column 171 is inserted between the raised supporting column 170 and the pedestal 106 on the base 105, and the hydraulic cylinder 101 is inserted.
Is contracted, the pin 111 is engaged with the engagement hole 150 of the extension support pillar 171 extended downward, and the step of extending the hydraulic cylinder 101 again is repeated to lift the floor beam 3 and the building upper part A2 to a predetermined height.

When the upper part A2 of the building is lifted to a predetermined height, the building jack device 10 is mounted on a balcony or the like.
It is preferable to add 0B so as to be able to withstand a large load.

By the way, the load applied to each of the architectural jack devices 100A and 100B at the time of jacking up may not be constant. Also, the architectural jack device 100A,
The ascending speed is different for each 100B, and the building may be tilted or distorted. Therefore, each jack device 1 for construction
Each hydraulic cylinder 1 is controlled by a stroke sensor 120 provided in the
01 is maintained at a uniform rate, and the entire building is balanced and jacked up without causing tilting or distortion in the building.

That is, the proximity switch of the stroke sensor 120 which expands and contracts in synchronism with the hydraulic cylinder 101 operates when the hydraulic cylinder 101 rises from the most contracted position.
The detection holes 123 provided at a predetermined pitch in the detection holes 21 are sequentially detected from the upper end to the lower end. At this time, the supply of the hydraulic oil of the hydraulic cylinder 101 that first generates the detection signal of the proximity switch is stopped to stop the increase so that the rising speed of each hydraulic cylinder 101 matches each pitch. After all the proximity switches of the cylinder 101 have generated the detection signals, the hydraulic oil is supplied again to restart the lifting of the hydraulic cylinder 101.

As described above, at the position where the detection signal is generated, the preceding hydraulic cylinder 101 temporarily stops and all the hydraulic cylinders 101 have the same amount of extension. By repeating this operation up to a predetermined height, the parallelism of the entire building is maintained. And lift.

Note that the hydraulic cylinder 10
1 may cause a difference in the ascending speed of the detection hole 123.
The influence of the speed difference can be neglected by setting the arrangement pitch in a range that does not affect the inclination or distortion of the building. The synchronous control of the hydraulic cylinder 101 may be performed using other control means.

After the upper part A2 of the building is raised to a predetermined height as shown in FIGS. 7 and 17, the wall frame 7 of the lower part A3 of the building (the first floor portion) is placed between the floor beam 3 and the concrete foundation 1.
0, the outer wall material 71, the window frame sash 72, the entrance door 73 and the like are assembled and constructed to complete the building A4.

In the above-described embodiment of the construction method for a building with two floors, the landing column of the jack device for building supports only the hut beam, and supports the hut beam when the floor beam 3 is lifted. You may make it jack-up using the unloading pillar. The construction method of the present invention can be applied to a one-story building.

That is, the cabin beam 2 is placed on the concrete foundation 1 through the temporary material 4 which is a spacer, and at least four places of the cabin beam 2 are lifted in advance in each jacking apparatus 100A for construction. It is supported by the load post 117. After supporting the shed beam 2 with the construction jack device 100A, the roof portion A1 is assembled on the shed beam 2 and completed, and the hydraulic cylinder 101 of the construction jack device 100A is extended to remove the roof portion A1 and the shed beam 2. It is lifted via the unloading column 117 connected to the cross beam 104. When the hydraulic cylinder 101 extends, the first additional loading column 107, which is slightly shorter than the total stroke of the hydraulic cylinder 101, is provided between the unloading column 117 and the supporting column 170 erected on the base 105 of the jack device 100A for construction. Connecting.

The pin 111 of the cross beam 104 is pulled out from the engagement hole 150 of the unloading column 117, and each hydraulic cylinder 1
01 together to reduce the roof part A1 and the shed beam 2
Of the load is supported via the unloading column 117, the first additional unloading column 107 and the supporting column 170. Then, the pin 111 of the cross beam 104 is added to the first extension unloading column 107.
After engaging with the engagement hole 150 of the hydraulic cylinder 10 again.
1 to extend the roof portion A1 and the hut beam 2 to the unloading column 1
17 and the first additional unloading column 107 are lifted, and the second additional unloading column 107 is connected between the first additional unloading column 107 and the support column 170. Such connecting work of the additional loading column 107, the cross beam 1
04 and the additional unloading column 107 are repeatedly connected and released by the pin 111 and the expansion and contraction work of the hydraulic cylinder 101 to raise the roof portion A1 and the shed beam 2 to the set height position, and then the shed beam 2 and the concrete. The wall shaft assembly 70, the outer wall material 71, the window frame sash, the entrance door, etc. are assembled with the foundation 1.

[0066]

[0067]

As described above, according to the present invention, after the roof portion is completed on the concrete foundation in advance, the construction jack device is expanded and contracted, and a plurality of additional loading columns are connected. By lifting the roof to the set height position and assembling the wall frame and outer wall materials in the space below the lifted roof, it is not necessary to use work machines such as crane trucks, and safety nets and high places. Temporary equipment such as scaffolding for work is not required, and it is possible to build a one-story house even in a small land.

Further, since the work is carried out almost on the ground and in the vicinity thereof, the worker can work safely, and temporary equipment such as scaffolding for working at high places becomes unnecessary, and the construction cost can be reduced. it can.

Moreover, since the roof is completed first, the material does not get wet due to wind and rain and the quality is not deteriorated. It can be carried out regardless of the weather, and the construction period can be shortened. it can.

[0070]

[0071]

[0072]

[0073]

[Brief description of the drawings]

FIG. 1 is a partially enlarged sectional view showing the first step of the construction method according to the present invention.

FIG. 2 is a cross-sectional view showing the formation of a roof portion from the front according to the construction method of the present invention.

FIG. 3 is a front view showing a finished roof part on a concrete foundation.

FIG. 4 is a front view in which the finished roof is jacked up to a predetermined position using a building jack device.

FIG. 5 is a front view in which a second-story wall shaft assembly is assembled between a hut beam raised to a predetermined position and a floor beam placed on a concrete foundation.

FIG. 6 is a front view in which a second-floor exterior material is assembled on a concrete foundation.

FIG. 7 is a front view in which the roof and the upper part of the building are jacked up to a predetermined position using a jacking device for construction.

FIG. 8 is a front view in which a wall shaft assembly on the first floor is assembled between a floor beam raised to a predetermined position and a concrete foundation.

FIG. 9 is a front view of a building completed by assembling exterior materials on the first floor.

FIG. 10 is a partial sectional view in which a roof portion is formed on a concrete foundation.

FIG. 11 is a partial cross-sectional view in which the finished roof is jacked up using a building jack device.

FIG. 12 is a partial sectional view in which a first additional loading column is inserted below the discharging column.

FIG. 13 is a partial cross-sectional view in which a first extension landing column is engaged with a cross beam.

FIG. 14 is a partial cross-sectional view in which a plurality of extension columns are added to jack up the roof to a predetermined position.

FIG. 15 is a partial cross-sectional view in which a wall axle is assembled between a hut beam and a floor beam.

FIG. 16 is a partial cross-sectional view in which a cross beam is replaced with a central portion of a cylinder tube, and the cross beam is engaged with a support column.

FIG. 17 is a partial sectional view in which a roof and an upper part of a building are jacked up at predetermined positions.

FIG. 18 is a partial cross-sectional view in which the wall shaft assembly on the first floor is assembled between the floor beam lifted to a predetermined position and the concrete foundation.

FIG. 19 is a schematic perspective view showing the operation and control of the building jack device.

FIG. 20 is a front view of the unloading column of the architectural jack device raised to the full stroke of the piston rod.

FIG. 21 is a front view in which the first additional loading column is inserted between the loading column and the pedestal on the floor beam.

FIG. 22 is a front view in which the piston rod is contracted so that the cross beam pin is engaged with the engagement hole formed in the unloading column by the first addition.

FIG. 23 is a front view in which the first additional loading column is raised to the full stroke of the piston rod.

FIG. 24 is a front view in which a second additional discharge column is inserted between the first additional discharge column and the pedestal on the floor beam.

FIG. 25 is a front view in which a piston rod is contracted so that a pin of a cross beam is engaged with an engagement hole formed in a second reloading column.

FIG. 26 is a front view of the architectural jack device in which a hut beam is jacked up to a predetermined position.

FIG. 27 is a front view in which a wall shaft assembly on the second floor is assembled between a hut beam and a floor beam, a cross beam is replaced with a central portion of a cylinder tube, and pins of the cross beam are engaged with support columns. .

FIG. 28 is a front view in which a support column supporting a floor beam is raised to the full stroke of a piston rod.

FIG. 29 is a front view in which a first extension support column is inserted between a base on the base and the support column.

FIG. 30 is a front view in which the hydraulic cylinder is contracted and the pin of the cross beam is engaged with the first extension support column.

FIG. 31 is an enlarged front view showing a pedestal on a floor beam and a pedestal on a base.

FIG. 32 is a cross-sectional view of a reinforced strut and a reinforced support column.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete foundation 2 Hut beam 3 Floor beam 4 Temporary material 50, 70 Wall frame 51, 71 Exterior wall material 52 Roof 53 Balcony 54, 72 Window frame sash 73 Entrance door 100 Building jack device 101 Hydraulic cylinder 102 Cylinder tube 103 Piston Rod 104 cross beam 105 base 106,160 pedestal 107 extension landing column 108,180 flange 111 pin 117 lifting column 120 stroke sensor 130 taper portion 131 socket 150 engagement hole 170 support column 171 extension extension column 200 pump 202 control device 203 Control code A1 Roof A2 Upper building A3 Lower building A4 Building

Claims (1)

(57) [Claims] 1. The base of each of the piston rod tips
And two hydraulic cylinders connected in parallel to each other and these oils.
Crossbee connected to cylinder tube of pressure cylinder
And a unloading column consisting of pins on this cross beam
While detachably connecting, support pillars are erected on the base.
Each of a plurality of construction jack devices configured by
Place it in place and put a temporary material on the concrete foundation.
The huts placed on the floor are installed in each of the 4
After supporting it by the unloading column connected to the jack device,
Completed by assembling the roof part on top, and then the building jar
The hydraulic cylinder of the kick device is extended to extend the roof and the hut.
After lifting the beam through the unloading column,
Connect the first additional unloading column between the
The roof is released by disconnecting the hydraulic cylinder from the load column.
Section and hut beam to the unloading column, the first extension unloading column and
Support through the support column, then cross beam and first
Extend the hydraulic cylinder again after connecting the additional loading column.
Lengthen roof part and shack beam to unloading column and first splice
Lifted via the additional unloading column and the first additional unloading column
Connect the second extension unloading column between the supporting column and
Connection work of additional unloading columns of set number, cross beam and
Connection with additional loading column and its release work and hydraulic series
Repeat roof expansion and contraction work to set roof and hut beams
After raising to the height position, the hut beam and concrete foundation
Between wall frame, outer wall material, window frame sash, entrance door, etc.
The erection method that is characterized by assembling .