JPH062438A - Automatic elevating device for all-weather type temporary roof - Google Patents

Abstract

PURPOSE:To reduce the affection upon a building work for a temporary roof as far as possible, in a body construction of a reinforced concrete building, by eliminating the rearrangement of a temporary roof accompanied with the elevation of the body section of the building. CONSTITUTION:A worm jack 3 having a stroke corresponding to the height of one story is attached to the leg part of each support column 1, roof laying beams 8 bridge between a plurality of support columns, and control devices 7 for the jacks 3 arc provided. The jacks 3 are controlled in synchronization with each other, and the roof is raised while maintaining its horizontal condition. Further, the support columns 1 and the jacks 3 are allowed to self-climb up to a position where a finishing work is not hindered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic all-weather automatic raising device for a temporary roof, which enables construction during skeleton construction of reinforced concrete structures even during snow or rain.

[0002]

2. Description of the Related Art A reinforced concrete structure work is normally carried out outdoors, and therefore, due to safety and quality control problems, the work is suspended during snowfall or rain. In snowy regions such as Hokkaido, Tohoku, and Hokuriku regions, construction is often stalled for a long time in winter, which greatly affects the construction period and cost. In Hokkaido, in order to prevent freezing of cast concrete in winter, it is necessary to cover all working floors with tents and heat them with a heater even in fine weather.

Conventionally, the above-mentioned temporary roof for snowfall and curing has been constructed by using temporary materials such as steel pipe scaffolds and frame scaffolds.

[0004]

When a temporary material is used as in the prior art, the roof needs to be refilled as the skeleton rises, which requires a lifting machine such as a crane, and much manpower and labor. is doing. In addition, it may be difficult to use a crane for construction in urban areas, and improvement of the method of constructing a temporary roof was requested.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and an object of the present invention is to eliminate the need to re-seat the temporary roof due to the rise of the skeleton and to construct the temporary roof. The purpose is to provide an automatic lifting device for an all-weather temporary roof that can minimize the effect of

In order to achieve the above object, an automatic lifting device for an all-weather temporary roof according to the present invention is provided with a leg portion of each pillar.
The roof is supported between the pillar heads of a plurality of columns having a jack having a stroke for the first floor of the building, and a tuning control device for each jack is disposed, and the plurality of jacks are connected via the control device. The roof is lifted in a flat state, and after the roof is lifted, the pillars and jacks are self-climbed to a position that does not hinder the finishing work.

[0007]

Since the present invention is constructed as described above, it is arranged at a plurality of positions on the frame of the building, and each leg has a jack having a stroke corresponding to one floor of the frame of the building attached between the heads of the columns. The roof is supported, the jack is synchronously controlled by the tuning control device of the jack, the roof temporarily installed between the pillar and the head of the pillar is raised in a flat state, and then the pillar and the jack are self-supported. Climb it so that it does not interfere with the finishing work. Further, the pushing amount of the shaft from the jack is monitored for each support, and the pushing amount of the successive shaft is corrected by the control device so that the operation of each jack is synchronized.

[0008]

The present invention will be described below with reference to the illustrated embodiments. 1 and 2 show a first embodiment of the present invention, in which a column base of a column 1 is provided with a worm jack 3 with a gear motor 2 and a movement amount of the worm jack 3. A rotary encoder 4 for monitoring is mounted, and the tip of the screw shaft 5 of the worm jack 3 is fixed to the support 1.

Reference numeral 6 is a load sensor mounted on the top of the pillar 1, 7 is a control device for synchronously controlling the jacks installed on each pillar 1, and 8 is a roof erection beam bridged on each pillar 1. is there. FIG. 2 shows a process of raising the temporary roof by the apparatus of the present invention. The jacks 3 and the pillars 1 are installed in the same number as the pillars according to the scale of the building, and the roof erection beams 8 are laid on the pillars 1. Support the roof through.

Thus, the jack 3 has the screw shaft 5 on the floor 9 where the strength of the skeleton concrete is developed.
A, that is, it is installed on the floor 9A, which is two floors below the working floor 9C on which the frame work is being performed, and further on the floor 9B immediately above and the working floor 9C
In the above, a stay 10 for eccentric roof load, a wind, and a horizontal load caused by an earthquake is arranged on the jack body and the pillar 1. Reference numeral 11 in the drawing denotes a floor opening through which the pillar 5 and the jack 1 provided on the floor 9A pass.

When attempting to raise the roof in this state, the jack 3 re-loads the load as shown in FIG. 2B, and the shaft 5 is pulled up by one floor with this as a fulcrum. Next, the shaft 5 is fixed again, and as shown in FIG. 2C, the main body of the jack 3 and the column 1 connected thereto are pulled up by one floor. At this point, the floor opening 11 of the floor 9A can be closed.

With the above operation, the roof and the pillar 1 are automatically raised by one floor only by jacking. At this time, the amount of extrusion of the screw shaft 5 from each jack 3 is monitored by the rotary encoder 4, and the rotation of the motor 2 is controlled by the control device 7 so that the extrusion of all the worm jacks 3 becomes the same. The load sensor 6 monitors the load of the support column 1, and when an excessive load is applied to the support column 1, the motor control unit of the control device 7 stops all the worm jacks 3.

FIGS. 3 and 4 show a second embodiment of the present invention. When the screw shaft 5 is driven and rotated, the propeller 1 is pushed up by a traveling nut moving on the shaft 5. FIG. 4 shows a process of raising the erected roof according to the above-mentioned embodiment. As shown in FIG. 4 (a), the jack 3 is fixed to the floor 9A of the skeleton to support the roof load, and the roof is placed on the first floor from this state. When moving up by the amount, first, the traveling nut 12 is fixed to the column 1, and the jack 3 and the screw shaft 5 are moved up by one floor as shown in FIG. 4 (b).
Then, as shown in FIG. 4 (c), the jack 3 is connected to the floor 9B.
Fixed to the roof to support the roof load, and the traveling nut 12
The pillar 1 and the roof are pushed up by raising.

In the figure, the same parts as those in the above embodiment are designated by the same reference numerals, and the jack is controlled in the same manner as in the above embodiment. 5 and 6 show a third embodiment of the present invention,
Push up the column 1 with the screw shaft 5. FIG. 6 shows the steps of installing and raising the roof and the supporting device. In this case, as shown in FIG. 6 (a), the worm jack 3 is attached to the floor 9 of the frame.
It is fixed to A, and the jack 3 is raised to the first floor as shown in FIG. 6 (b). Next, the same jack 3 is fixed to support the roof load, and the screw shaft 5 is lifted to support the pillar 1.
Raise. The jack 3 is controlled in the same manner as in the above embodiment.

In the figure, the same parts as those in the above-mentioned embodiments are designated by the same reference numerals.

[0016]

As described above, according to the present invention, it is possible to automatically lift the temporary roof accurately and horizontally without the need to re-install the temporary roof. In this state, it is possible to do the frame work, to save labor, shorten the construction period, and reduce the construction cost.
It is particularly suitable for construction in heavy snowfall areas, snowfall, and rainy seasons.

In addition, safety can be improved by eliminating the use of cranes and work at high places by human power.

[Brief description of drawings]

FIG. 1 is an elevational view showing a first embodiment of an automatic lifting device for an all-weather temporary roof according to the present invention.

2 (a), (b) and (c) are elevation views showing a step of raising a temporary roof by the apparatus of the first embodiment.

FIG. 3 is an elevational view showing a second embodiment of the automatic lifting device for an all-weather temporary roof according to the present invention.

4 (a), (b) and (c) are elevation views showing a step of raising a temporary roof by the apparatus of the second embodiment.

FIG. 5 is an elevational view showing a third embodiment of the automatic lifting device for an all-weather temporary roof according to the present invention.

6 (a), (b) and (c) are elevation views showing a step of raising a temporary roof by the apparatus of the third embodiment.

[Explanation of symbols]

 1 Support 2 Gear Motor 3 Worm Jack 4 Rotary Encoder 5 Screw Shaft 6 Load Sensor 7 Controller 8 Roof Installation Beam 9A, 9B, 9C Floor 10 Stay 11 Floor Opening 12 Traveling Nut

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunihiko Otoguro 4-12-20 Nihonbashi Honcho, Chuo-ku, Tokyo Sato Industry Co., Ltd. (72) Inventor Hajime Demura 4-12-20 Nihonbashi-honcho, Chuo-ku, Tokyo Sato Industry Co., Ltd.

Claims (1)

[Claims] 1. A roof is supported between the pillar heads of a plurality of pillars each having a jack having a stroke of one floor of a building attached to a leg portion of each pillar, and a tuning control device for each jack is arranged. , The same jacks are synchronously controlled via the control device to raise the entire roof in a flat state,
An automatic lifting device for an all-weather temporary roof, characterized in that after the roof is lifted, the pillars and jacks are self-climbed to a position that does not interfere with the finishing work.