JP3379014B2 - Push-up method and its device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-up construction method for constructing a bridge, a building structure or the like by hoisting and suspending it, and an extendable push-up device as a temporary column used for the push-up construction method.

[0002]

2. Description of the Related Art As a push-up device, that is, a vent as a temporary support for constructing a bridge or a building structure, the one shown in FIG. 8 has been generally used.
The conventional type shown in FIG. 8 (A) is most often used, and a pillar member, a connecting member, etc. are formed by using a truck crane or the like to form a vent having a side length of 2 m and a height of about 25 m. The parts are stacked while being assembled. Figure 8
Although the unit block shown in (B) is formed by stacking unit blocks, the unit blocks are inserted from the lowermost part and stacked by hydraulic pressure, a screw jack, a rack and pinion, or a rope operation. FIG. 8 (C)
In the telescope type shown in, unit blocks of different sizes are stacked by hydraulic pressure or rope operation. In the pantograph type shown in FIG. 8D, the shape of the links installed in a quadrangle is deformed by hydraulic operation, and a vent having a predetermined height is obtained by the pantograph function. The stepladder shown in FIG. 8 (E) stands up a literally large stepladder at the work site.

However, in such a vent, in the conventional type shown in FIG. 8 (A), many parts such as a pillar member and a connecting member are assembled on site, so that it takes time to construct and dismantle. In addition to the above (1.0 to 1.5 artificial per t), it is complicated and inferior in the transportability of the parts because it is necessary to prepare several sets of parts. In addition, in FIGS. 8 (A) to 8 (E), a lifting device such as a vent device itself or a jack, a crane or the like for constructing the device in a used state requires a large capacity. 8B and 8C, although the vent is divided for each unit block, the unit block itself is relatively heavy, and a large lifting device was required for stacking it. .

Therefore, the applicant of the present invention has solved the above-mentioned problems in the conventional vent, and has less assembly work by the lifting device at the work site, and can easily increase the height even with a small lifting device. We proposed a telescope type vent that can be assembled while adjusting, is lightweight, has excellent workability, and can shorten the construction period and cost (Japanese Patent Laid-Open No. 10-252285). This telescope type vent will be briefly described with reference to FIG. 9. In the telescope type vent 21 used as a temporary support for a building structure or the like, a large number of pin holes 28 ... A plurality of sets of rectangular steel pipes 21A, 21B, 21C are sequentially slidably inserted into a large-sized outer steel pipe, and height adjusting pins provided on the outer steel pipe are selectively inserted into pin holes 28 of the inner and outer steel pipes. This is characterized in that the inner steel pipe is configured so as to select the length for taking in and out.

[0005]

Thus, since the telescope type vent is required to simply slide a plurality of sets of rectangular steel pipes in sequence on site, the assembly work by the lifting device is remarkably small and parts are lost. Things are almost gone. However, this telescope type vent does not push up the temporary support pillar while the roof, which is a structure, is placed on it, and a plurality of steel pipes incorporated in the telescope type are sequentially extracted from the inside using a crane or the like, and Since it is to be raised to a predetermined height, it is necessary to assemble the structure such as the roof separately from the telescopic type vent which is a temporary support, and both the telescopic type vent and the telescopic type vent are still relatively difficult to assemble. A large lifting device was needed.

Therefore, in the present invention, the telescope type vent by the applicant of the present invention is further improved so that a telescopic support for a structure can be easily and surely constructed even with a smaller and simple lifting member. An object is to provide an up-construction method and an apparatus therefor.

[0007]

Therefore, according to the present invention, the above-mentioned respective tubes of the expansion support, which are formed by fitting a plurality of tube members having different diameters, which are arranged in a tower tower constructed on the ground. With the lifting member installed on the guide tower,
It is characterized in that the structure fixed on the upper part of the expansion support is weighed by sequentially feeding out from the outermost pipe member and lifting it, and fixing each pipe member at the extension position with a pin member. It is a thing. Further, according to the present invention, a guide tower constructed in a turret shape on the ground and a plurality of pipe members arranged in the guide tower and having different diameters are fitted to each other to fix a structure to be stacked on top. A telescopic support, a hoisting member installed on a guide tower for sequentially hoisting and hoisting the pipe members from the outermost one, and a pin connecting these pipe members so as to fix the positions of the pipe members at the extended position. And a member. Further, the present invention is characterized in that the hoisting member is configured to hoist the pipe member via a guide ring that is fixed to the pipe member and guided by the guide tower. Further, the present invention is characterized in that the lifting member comprises a jack and a wire or a rod. Further, the present invention is characterized in that the lifting member comprises a winch, a wire and a plurality of pulleys, and these are means for solving the problems.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a push-up method and a device therefor according to a first embodiment of the present invention.
(A) is a front view of a main part of the elastic supporter before and after expansion and contraction,
FIG. 1 (B) is a front view of a main part of the telescopic supporter before extension, FIG. 2 is a perspective view of a guide tower, FIG. 3 (A) is a cross-sectional view showing a state where a pipe member is fixed by a pin member, and FIG. ) Is its front view, FIG. 4 is a front view before and after push-up of the structure, FIG. 5 is a plan view of the structure, and FIG. 6 is a front view of the push-up process of the structure. INDUSTRIAL APPLICABILITY The push-up method and its apparatus of the present invention are used as a temporary guide tower when constructing building structures such as bridges and roofs, and as shown in FIG. Pipe members 2A, 2B, 2C having different diameters arranged in the guide tower 1
The tube members 2A, 2 of the expansion support 2 formed by fitting
Lifting member 4 in which B and 2C are installed on the guide tower 1.
And 7 in order to lift the structure, and fix the pipe members 2A, 2B and 2C between the pipe members 2A, 2B and 2C at the extended position by the pin member 19 (FIG. 3), so that the structure 3 fixed to the upper portion of the expansion support 2 is suspended. It is characterized by doing so. In the example illustrated in FIG. 1, three types of rectangular steel pipes, that is, a large-sized outer pipe support 2A, a medium-sized middle pipe support 2B, and a small-sized inner pipe support 2C are sequentially slidably inserted as pipe members. Although the expansion support 2 is configured, the number and sectional shape of the pipe members forming the expansion support 2 are appropriately selected.

FIG. 2 is a perspective view of the guide tower, which is constructed in the shape of a four-legged turret constructed on the ground. Inside the guide tower 1, there are a plurality of vertically different diameters in a substantially central portion. An expansion support 2 formed by fitting the pipe members 2A, 2B, 2C is provided, and the expansion support 2 and the guide tower 1 are arranged.
The upper guide ring 6 and the lower part, which are selectively secured to the tube members 2A, 2B, 2C constituting the expansion support 2 and are guided by the guide rollers 12 to the leg portions of the guide tower 1, between the leg portions of The guide ring 8 is arranged so as to be vertically movable. A pair of jacks 4 are symmetrically installed on a guide frame 5 which is a top plate of the guide tower 1, and the jack 4 and the guide ring 6 or the lower guide ring 8 are connected by a wire or a rod 7. A lifting member is configured. In the illustrated example, as shown in FIG. 1 (A), a large-sized outer tube support 2A is first pushed up, and then a medium-sized middle tube support 2A.
B, sequentially feeding in <br/> row rather the inner tube support 2C of the small size.

As shown in FIG. 3, a large number of pin holes 15 are formed on each of the four side surfaces of the rectangular steel pipe which is each of the pipe members 2A, 2B and 2C constituting the expansion support 2. A reinforcing member 18, which is a reinforcing plate, is attached to the periphery. If the strength allows, the pin holes 15 do not necessarily have to be provided on all four side surfaces of each rectangular steel pipe. A gap adjusting metal fitting 17 also serving as a slide metal fitting is arranged between the plurality of sets of pipe members 2A, 2B, 2C, so that the inner pipe member can be slid in and out of the outer pipe member, and the self-supporting expansion and contraction support is provided. It is configured to fill the gap between the pipe members so as not to leave anxiety about the safety and reliability associated with the rolling of the pipe 2. In addition, the gap adjusting hardware 17 that also serves as the slide hardware is the lower portion 2 of the inner pipe member.
Although the number of stages is provided, the number of stages is appropriately selected as necessary. Thus, as shown in FIG. 1 (A), the expansion support 2 is provided by the lifting members 4 and 7 and the guide rings 6 and 8 installed on the guide frame 5 in the guide tower 1.
The respective pipe members 2A, 2B, 2C constituting the above are sequentially drawn out and lifted up (state of 2A ', 2B'), and inserted into the pin holes 15, 15 for aligning the pin members 19 between the pipe members at the extended position. Therefore, the structure 3 fixed and fixed to the upper part of the expansion support 2 can be weighed.

FIG. 4 is a front view of the structure before and after it is pushed up, and FIG. 5 is a plan view of the structure. As shown in FIG. The outer roof structures 9A and 9B are constructed, and a temporary floor board 10 is installed at a central position by a temporary pillar 11. As shown in FIG. 6 (B), after constructing, for example, the inner roof structure 3 on the temporary floor plate 10, the guide tower 1 in which the expansion support 2 according to the present invention is arranged on both sides of the temporary floor plate 10, 1 is built, and the inner roof structure 3 is fixed to the upper part of the expansion support 2. Next, each pipe member in the expansion support 2 is sequentially drawn out and lifted by a lifting member installed on the guide tower, and each pipe member is fixed by a pin member at the extension position (manually or automatically controlled automatically). Thus, the roof structure is constructed by stacking the inner roof structure 3 which is a structure fixed to the upper portion of the expansion support 2 and connecting the inner roof structure 3 with the outer roof structures 9A and 9B in a aligned state. To be done. The inner roof structure 3 and the outer roof structures 9A and 9B may be constructed simultaneously.

FIG. 7 shows a second embodiment of the push-up method and the apparatus therefor according to the present invention. In this embodiment, the hoisting member installed on the guide frame 5 in the guide tower 1 is a winch 13 and a winch 13. The wire 16 and the plurality of pulleys 14A, 14B, and 14C are featured. The pulley 14B group of the hoisting member is fixed to the lower guide ring 8, and the wire 16 is stretched several times between the pulley 14B group and the 14C group, and the winch 1
3 is rotated by a small pulling force, and each pipe member 2A, 2B, 2 in the expansion support 2 is guided through the guide ring.
C can be sequentially paid out and lifted.

While the respective embodiments of the present invention have been described above, the shape of the pipe member,
Number of built-in steps, cross-sectional shape, pin hole shape, number, spacing, pin member shape and its installation form on pipe member, guide tower type, related configuration of guide tower and expansion support, guide ring shape and its Appropriate adoption can be made for the form of securing or fixing to a wire or rod which is a pipe member or a lifting member, the form of fixing the expansion support and the structure, the form of jacks or winches, the form of arrangement of pulleys, and the like.

[0014]

As described above in detail, according to the present invention, the expansion and contraction of a plurality of pipe members having different diameters arranged in a tower tower constructed on the ground are fitted. The respective pipe members of the support are sequentially extended from the outermost pipe member by a lifting member installed on the guide tower and lifted up, and fixed between the pipe members at the extended position by pin members, whereby the upper portion of the expansion support is expanded. Since the structure fixed to the upper part is weighed, the pipe parts with smaller diameters are housed inside the outer pipe part in sequence, so that it occupies a large volume when transported to the work site. There is no need for efficient transportation, only a simple and lightweight slide work of multiple pipe members with different diameters occupies most of the work process, less assembly work by the lifting device at the work site,
Moreover, even small lifting devices such as jacks and other lifting members installed on the guide tower can be assembled while adjusting the height easily, resulting in excellent workability and a drastic reduction in construction period and cost reduction. The push-up construction method that made it possible was realized.

Further, a guide tower constructed in a turret shape on the ground and a plurality of pipe members arranged in the guide tower and having different diameters are fitted to each other to fix a structure to be stacked on top. A telescopic support, a hoisting member installed on a guide tower for sequentially hoisting and hoisting the pipe members from the outermost one, and a pin connecting these pipe members so as to fix the positions of the pipe members at the extended position. Since it is made up of members, it is not necessary to add equipment such as blocks by using a trolley, etc., and each pipe member in the expansion support arranged in the guide tower is simply extended by the lifting member and lifted in order. Since the structure can be constructed by stacking with, the work efficiency is significantly improved, the structure is simple and the equipment cost is low, and the number of items is increased even when preparing as temporary material. You do not need good push-up device can be realized. Further, since the lifting member is configured to lift the pipe member through the guide ring that is fixed to the pipe member and guided by the guide tower, the pipe members in the expansion support can be smoothly moved without rattling. It has become possible.

Furthermore, when the hoisting member is composed of a jack and a wire or a rod, it is common to use a small and inexpensive jack and wire or rod without using a large crane as in the conventional one. Since the hoisting member can be configured by, the device becomes less expensive. Further, when the hoisting member is composed of a winch, a wire and a plurality of pulleys, each tube member in the expansion support can be sequentially paid out and hoisted only by rotating the winch with a small pulling force. Thus, there is provided a push-up construction method and a device therefor capable of easily and reliably constructing a stretchable support together with a structure even with a smaller and simpler lifting member.

[Brief description of drawings]

1A and 1B show a first embodiment of a push-up method and a device therefor according to the present invention. FIG. 1A is a front view of a main part before and after expansion / contraction of an expansion / contraction supporter, and FIG. 1B is expansion / contraction. It is a front view of the principal part before extension of a supporter.

FIG. 2 is a perspective view of the guide tower of the same.

FIG. 3 (A) is a sectional view showing a fixed state of a pipe member by a pin member, and FIG. 3 (B) is a front view thereof.

FIG. 4 is a front view of the structure before and after push-up.

FIG. 5 is a plan view of the structure.

FIG. 6 is a front view of a process of the structure according to the push-up method.

FIG. 7 is a perspective view of a guide tower showing a second embodiment of the push-up method and the apparatus therefor according to the present invention.

FIG. 8 is a diagram illustrating various conventional vents.

FIG. 9 is a diagram showing a proposal example of a telescope type vent by the applicant of the present application.

[Explanation of symbols]

1 ... Guide tower 2 ... Telescopic support 2A: Outer pipe support (pipe member) 2B: Middle pipe support (pipe member) 2C: Inner pipe support (pipe member) 3 ... Inner roof structure (structure) 4 jack (lifting member) 5: Guide frame 6 ... Upper guide ring 7: Wire, rod (lifting member) 8 ... Lower guide ring 9 ... Outer roof structure 10 ... Temporary floorboard 11 ... Temporary columns 12 ... Guide roller 13 ... winch 14 ... Pulley 15-pin hole 16 ... Wire 17 ... Gap adjustment hardware 18 ... Reinforcing member 19: Pin member

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Claims (5)

(57) [Claims] 1. A hoisting system in which each pipe member of an expansion and contraction support, which is formed by fitting a plurality of pipe members having different diameters and arranged in a tower tower constructed on the ground, is installed on the guide tower. It is characterized in that the structure fixed to the upper part of the expansion support is weighed by sequentially feeding out from the outermost pipe member by means of a member and lifting it, and fixing each pipe member at the extended position with a pin member. And push-up construction method. 2. A structure, which is formed by fitting a guide tower constructed in the shape of a turret on the ground and a plurality of pipe members arranged in the guide tower and having different diameters, is fixed to the upper part. A telescopic support, a hoisting member installed on a guide tower for sequentially hoisting and hoisting the pipe members from the outermost one, and a pin connecting these pipe members so as to fix the positions of the pipe members at the extended position. A push-up device comprising: a member. 3. The push-up device according to claim 2, wherein the lifting member is configured to lift the pipe member via a guide ring that is fixed to the pipe member and guided by the guide tower. . 4. The lifting member comprises a jack and a wire or a rod.
Or the push-up device described in 3. 5. The push-up device according to claim 2, wherein the lifting member includes a winch, a wire, and a plurality of pulleys.