JPH08240006A - Plumbing system for post and jack for fine adjustment - Google Patents

Abstract

PURPOSE: To provide a plumbing system, in which at the time of plumbing posts such as a steel post, a SPC post, a PC post and so on, plumbing adjustment can be performed efficiently, and the lean adjustment for the post can be performed in a short time. CONSTITUTION: At least three or more fine adjustment jacks 10 respectively connected to a hydraulic booster 18 controlled by a control device 17 are interposed in a joint part 7 of a post 1 concerned with erection. The projecting and sinking amount of a rod of the fine adjustment jack 10 is adjusted by the control device 17 to make level adjustment for a post 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building system, such as a steel system column, an SPC column, a PC column, and the like. Relates to jacks used in the system.

[0002]

2. Description of the Related Art In the conventional method of installing columns, instead of individually adjusting each column, as shown in FIG. 8 (a), the column 1 is carried in by a crane or the like and placed on the legs. Then, temporarily tighten the joint section 7.

Next, as shown in FIG. 8B, the pillars 1, 1
A beam 2 is installed between them. Also in this case, the joint portion 7 with the beam 2 is temporarily tightened.

Then, as shown in FIG. 8C, after the block is built, the straightening wire 3 is installed in an obliquely upward and downward direction.

After that, as shown in FIG. 8D, the indicator rods 5 are set on the upper portions of the transit 4 and the pillar 1, respectively.

Then, the inclination of each pillar 1 is adjusted by the straightening wire and the lever block 6, and after the inclination of the pillar 1 is adjusted, each joint portion 7 is fully tightened.

[0007]

However, in such a conventional column construction system, since the weight of columns and beams such as SPC is heavy, it is difficult to adjust the warping wire 3 and the lever block 6. there were. Further, it takes a lot of time to construct the warping wire 3, and after the adjustment, the wire 3 has to be removed, which requires a large number of people, which is troublesome and costly.

Further, in the work of adjusting the inclination of the pillar, it is necessary for the person who measures and the person who adjusts the indicator rod 5 to have three to four manpower, which is troublesome and requires a long construction period. There was a problem to say.

In addition to this, if the columns are SPC, etc., the construction of the beams must be performed after securing the installation accuracy for each column, so the construction period is prolonged, and further, the installation adjustment of only the columns will result in an outer periphery. Since the wires cannot be stretched outside the site for the pillars of the department, there is a problem that the wires cannot be used and it takes more time to adjust the construction.

As described above, the conventional pillar construction system is
There was a problem to be solved in adjusting the inclination of the pillar. The present invention has been made in view of the above problems, and an object thereof is to provide a construction system capable of adjusting the inclination of a pillar in a short time, and a jack for fine adjustment used therein.

[0011]

SUMMARY OF THE INVENTION The gist of the above-mentioned problems of the column building system according to the present invention is to install fine adjustment jacks each connected to a hydraulic booster controlled by a controller. At least three or more intervening portions are provided at the joints of the columns, and the level of the columns is adjusted by adjusting the protruding / withdrawing amount of the rod of the fine adjustment jack by the control device.

The gist of the fine adjustment jack is that a main hydraulic jack, a sub-hydraulic jack for supplying oil to the hydraulic jack via a hydraulic pipe, drive means for driving the sub-hydraulic jack, and the drive means are provided. A fine adjustment jack comprising a control device for braking, wherein a piston diameter of at least a main hydraulic jack is much larger than a piston diameter of the sub hydraulic jack, and a piston shaft of the sub hydraulic jack is connected to a driving means. That is, the deceleration means is interposed between them.

[0013]

According to the pillar erection system of the present invention, since the hydraulic jack that can be finely adjusted is controlled by the controller to adjust the level of the pillar, the erection of the pillar can be performed in a shorter time.

According to the fine adjustment jack of the present invention, it can be used for installation of SPC columns or the like that require precise level adjustment.

[0015]

Embodiments of the present invention will now be described in detail with reference to the drawings. In the first embodiment of the present invention, as shown in FIG. 1, the configuration of the fine adjustment jack 10 is such that a main hydraulic jack 11 is connected to a sub hydraulic jack 13 of a screw type hydraulic jack via a hydraulic pipe 12. To do. That is, the jack is set in two stages and used.

Then, the rotation shaft of the speed reducer 15 is coaxially connected to one end of the shaft 14a of the piston 14 of the sub-hydraulic jack 13.

A motor 16 with a brake, which is a driving means for braking the rotation shaft of the speed reducer 15 by a brake, is good.
Connect the rotating shaft of. The drive control of the brake motor 16 is performed by a control device (not shown).

Further, the piston 11a of the hydraulic jack 11
Radius r₁And the piston 14 of the sub hydraulic jack 13
Radius r₂Is r₁>> r₂And, for example, (r₁)²/
(R₂) ²≒ 10, the stroke of the sub hydraulic jack 13
If the brake S0 is S0 = 1.1 mm / s, the hydraulic jack
The stroke S of 11 is S = 0.1 mm / s.

Further, the deceleration mechanism for decelerating the rotation speed of the motor with brake 16 is decelerated to a 1/120 ratio by the speed reducer 15 when the motor with brake 16 is rotated at 1440 rpm, and the output side is 12 rp.
It becomes m. As described above, the fine adjustment jack 10 is operated at a fine speed by the speed reduction mechanism, and the stroke ratio of the two-stage hydraulic jack is set to about 1/10 to finely adjust the stroke S of the hydraulic jack 11.

Next, a method for erection of a column by preparing four hydraulic jacks 11 of the above-described fine adjustment jack 10 will be described. For example, as shown in FIGS.
A pillar 1 such as an SPC pillar is erected and temporarily fixed with an erection piece. The hydraulic jack 11 is placed on the joint portion 7. The pillar 1 is provided with a fall prevention measure.

Then, the indicator rod 5 is attached to the top of the pillar 1. For example, the indicator rod 5 is attached to the steel portion of the pillar 1 using a magnet. On the other hand, the transit 4 and the vertical device 4a are set on the ground.

These are electrically connected to the control device 17, and the reference mark and the alignment mark are displayed on the monitor of the control device 17. Further, the control device 17 includes a joystick 1 for controlling the drive of the motor 16 with a brake.
7a is provided.

Further, the control device 17 and the booster 18
Connected to the motor with brake 16 of the booster 18
The sub hydraulic jack 13 and the main hydraulic jack 11 are connected by a hydraulic pipe 12.

Therefore, the joystick 17a is operated while looking at the monitor so that the alignment mark overlaps with the reference mark.

The way of setting the hydraulic jack 11 is as follows.
As shown in FIGS. 4 to 7, four stabilizing jack holders 19 are installed on the base portion 20 in the circumferential direction. The jack holder 19 is formed by arranging a cylindrical main body on a flat plate-like bottom plate part, and partially providing a notch for inserting a hydraulic pipe in the upper part of the main body.

Then, as shown in FIG. 5, an L-shaped metal (for example, steel) connecting pipe 21 for connecting and supporting the adjacent jack holders 19 and 19 with each other is attached by a pin 22. The length of the arm of the L-shaped connecting pipe 21 is adjustable, and is adjusted in advance according to the size of the column to be set. When these jigs are not used, concrete is preliminarily provided with a dent for preventing jack slipping when the PC pillar is formed.

Next, as shown in FIG. 6, the hydraulic jack 11 is fitted into each of the jack holders 19. The hydraulic pipe 12 is connected to the hydraulic jack 11 through a cutout portion of the main body of the jack holder 19.

Next, as shown in FIG. 7, when the distance between the lower surface of the column 1 and the upper surface of the base portion 20 is large, the head of the hydraulic jack 11 is covered with the cap 23.

The cap 23 is entirely made of metal and comprises a cylindrical main body 23a which covers the head of the hydraulic jack 11, and an attachment 23b which is screwed up and down on the main body 23a. .

The attachment 23b of the cap 23 is lowered in advance, the cap 23 is put on the head of the hydraulic jack 11 and fixed by a screw, and then the attachment 23b is rotated to be raised, and the upper end surface of the cap 23 is fixed to the pillar 1. Set on the bottom surface. The cap 23 includes the pillar 1 and the foundation 20.
It is used as appropriate depending on the interval.

When the setting of the main hydraulic jack 11 is completed in this manner, the joystick 1 is carefully watched with reference to the reference mark and the alignment mark on the monitor.
7a is operated to tilt forward, backward, leftward and rightward, and the rods and caps 2 of the four hydraulic jacks 11 are controlled via the control device 17.
3. Raise and lower 3 as appropriate.

The main hydraulic jack 11 can be finely adjusted by the sub-hydraulic jack 13 and can be controlled to about 0.01 mm or less. Therefore,
If the height of the pillar 1 is about 15 m, it will be 0.1 at the top of the pillar.
It is possible to adjust the entrance in mm units.

Thus, the level of a heavy column such as an SPC column can be adjusted by one person while looking at the monitor screen.

[0034]

As described above, in the column installation system according to the present invention, the fine adjustment jacks respectively connected to the hydraulic boosters controlled by the control device are connected to the column connection parts related to the erection. Since at least three of them are provided in the column and the level of the pillar is adjusted by adjusting the protruding / retracting amount of the rod of the fine adjustment jack by the control device, manpower is saved and the construction work time is greatly shortened. At the same time, it is possible to perform fine adjustment of the level of the pillar, and it is possible to perform precise construction, which is an excellent effect.

The fine adjustment jack according to the present invention comprises a main hydraulic jack, a sub-hydraulic jack for supplying oil to the hydraulic jack via a hydraulic pipe, drive means for driving the sub-hydraulic jack, and the drive. A fine adjustment jack comprising a control device for braking the means, wherein at least a piston diameter of the main hydraulic jack is much larger than a piston diameter of the sub hydraulic jack, and a piston shaft of the sub hydraulic jack and a driving means are provided. Since the speed reducing means is interposed between the connection of the two, the protruding and retracting of the rod of the hydraulic jack is extremely finely adjusted, and it is possible to use it for erection of heavy SPC columns etc. Play.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a fine adjustment jack according to the present invention.

FIG. 2 is an explanatory diagram of a building system according to the present invention.

FIG. 3 is a plan view of the building system according to the present invention.

4A and 4B are explanatory views (A) and (B) of a mounted state of the fine adjustment jack according to the present invention.

5 (a) and 5 (b) are explanatory views (a) and (b) of a mounted state of the fine adjustment jack according to the present invention.

FIG. 6 is an explanatory view of a mounted state of the fine adjustment jack according to the present invention.

FIG. 7 is an explanatory view (a) of a mounted state of the fine adjustment jack according to the present invention and a front view (b) of the cap.

FIG. 8 is an explanatory diagram (A) to (D) showing a procedure for erection of a column according to a conventional example.

[Explanation of symbols]

 1 pillar, 2 beam, 3 wire, 5 indicator, 7 joint part, 10 fine adjustment jack, 11 hydraulic jack, 12 hydraulic pipe, 13 sub hydraulic jack, 15 speed reducer, 16 brake motor, 17 control device, 18 Booster, 19 jack holder, 20 foundation, 21 connecting pipe, 23 cap.

Claims (2)

[Claims] 1. At least three fine adjustment jacks, each connected to a hydraulic booster controlled by a control device, are interposed in a joint portion of a column related to building, and a rod of the fine adjustment jack appears and disappears. A column building system, wherein the amount of the column is adjusted by the control device to adjust the level of the column. 2. A main hydraulic jack, a sub-hydraulic jack for supplying oil to the hydraulic jack via a hydraulic pipe, drive means for driving the sub-hydraulic jack, and a control device for braking the drive means. And a piston diameter of at least the main hydraulic jack is much larger than a piston diameter of the sub-hydraulic jack, and a reduction means is interposed between the piston shaft of the sub-hydraulic jack and the drive means. Fine adjustment jack characterized by being