JP3453181B2 - Working steel stand and method of assembling tower-like structure using the working steel stand - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work steel stand and a method for assembling a tower-like structure using the work steel stand.
TECHNICAL FIELD The present invention relates to a work steel stand capable of safely and efficiently assembling a tower-like structure, and a method for assembling a tower-like structure using the work steel stand.

[0002]

2. Description of the Related Art In recent years, towers have been constructed and buildings have been made taller to make effective use of land in urban areas.
One of them is a multi-storey car park where the car park is tower-shaped. The multistory parking lot plays an important role in solving a shortage of parking lots in commercial areas, for example.

The structure of this multi-storey car park will be described below with reference to the drawings. First, with reference to FIG. 14, this multistory parking lot 300 has a steel tower 302 having a three-dimensional frame structure formed by combining a plurality of steel frame members. A drive device 306 is provided above the inside of the steel tower 302, and a lower sprocket wheel 312 is provided below the inside thereof. Drive unit 306 and lower sprocket wheel 3
A main chain 304 for transmitting power from the drive device 306 is hung on the shaft 12.

On the main service chain 304, cages 308 for mounting an automobile are suspended at predetermined intervals. Therefore, the driving force of the drive device 306 is transmitted to the main duty chain 304, so that the main duty chain 304 circulates inside the steel tower 301 and moves the cage 308.
Further, an exterior panel 310 is attached to the entire surface of the steel tower 302.

Next, the structure of the steel tower 302 will be described with reference to the drawings. Referring to FIG. 15, this steel tower 30
2 has a transformer structure having a three-dimensional frame structure. Although the actual steel tower 302 has a rectangular horizontal cross section, the structures viewed from the four side surfaces are almost the same, and therefore, for convenience, only the structure of one side view will be described here.

First, the vertical columns 302A to 302D and the vertical column 30.
4A to 304D. The vertical columns are fixed by bolts or welding, using an eye plate (not shown) or the like. Vertical columns 302A to 302D and vertical columns 304A to 304D
Horizontal beam 306A between the vertical columns
~ 306I are provided. Further, braces 308A to 308I are attached between the lateral beams, respectively.

The steel tower 302 having the above-described structure is composed of the vertical columns 30.
The structure can be divided into blocks 300A to 300D corresponding to the length of 2A to 302D, and in particular, the block 300B and the block 300C can use the same structure.

Next, assembling of the steel tower 300 having the above structure will be described with reference to the drawings. Referring to FIG. 16, first, a block 300A forming the lowermost stage of the steel tower 300 is assembled, and further, the large crane vehicle 3 is mounted on the block 300A.
20 and the like are used to carry in the members and assemble the block 300B. After that, the blocks are sequentially assembled using the same procedure, and the next block is assembled on the completed block, so that the steel tower 300 is finally completed.

[0009]

However, according to the above-described method of assembling the steel tower, the assembly work gradually shifts upward with reference to FIG. 16 again, which causes the following problems. Is occurring.

It is necessary to provide a scaffold 316 for working at height and a safety net 314. It is necessary to perform work in high places, that is, dangerous work.

Since the work is performed at a high place, the work efficiency can be improved only by a skilled worker. Since most of the assembly is done on site, it is difficult to improve quality and shorten the construction period.

[0012] Since a large lift is required, it may interfere with the surrounding traffic, and its use is often restricted, especially in commercial areas and other places where buildings are densely located.

The present invention has been made to solve the above-mentioned problems, and the assembling work of the tower-shaped structure is performed only near the ground, and the assembly is started from the upper portion of the tower-shaped structure on the ground.
It is an object of the present invention to provide a working steel table that can gradually lift the assembled parts thereafter, and further to provide a method for assembling a tower-like structure using this working steel table.

[0014]

In Means for Solving the Problems] working steel platform according to claim 1 based on the present invention, are arranged in a rectangular four corners of which are disposed at least in a horizontal plane, the column shape is fixed to the base A base member of the structure , four pillar members that are fixed to respective positions near the four corners of the rectangle on the outside of the base member, and that are vertically installed;
Along with each of the pillar members of the book, there are provided four lift members which are vertically movable in a state where they are located in substantially the same horizontal plane, and elevating means for elevating and lowering the four lift members. There is.

Next, in the work steel stand according to claim 2 based on the present invention, in the work steel stand according to claim 1, the elevating means is predetermined for each of the pillar members. The four rod-shaped members, which are arranged closely in parallel with each other with a space between them and have male threads formed on the surface thereof, and through holes having female threads formed on the inner surface, which are screwed into the male threads of the rod-shaped members. The male screw on the surface of the rod-shaped member and the female screw of the through hole relatively rotate, and includes an elevating member movable in the vertical direction along the rod-shaped member.

Next, in the working steel stand according to a third aspect of the present invention, which is the working steel stand according to the first aspect, the four lift members are the pillars facing each other. It has two connecting members to bridge the members.

Next, in a working steel stand according to a fourth aspect of the present invention, which is the working steel stand according to the third aspect, the four pillar members are concave in section. Have
Further, the recesses are arranged so as to face each other so as to guide both ends of the connecting member, and each of the connecting members has two receiving members arranged in parallel. The elevating member is provided between them.

Next, in the method for assembling a tower-like structure according to a fifth aspect of the present invention, there is provided a method according to the first aspect.
A method for assembling a tower-shaped structure, which is capable of being divided into a plurality of structures in the height direction by using any one of the work steel stands of No. 5, and comprises the following steps.

First, the first structure is assembled on the lift member of the working steel table having the lift member capable of moving up and down. Thereafter, the lift member is used to raise the first structure by a predetermined distance.

Next, the first structure is fixed relatively to the base member provided on the working steel base at the position elevated by the predetermined distance. Then, only the lift member is lowered. Next, a second structure is assembled under the first structure to connect the first structure and the second structure.

Next, in the method for assembling a tower structure according to claim 6 of the present invention, the method for assembling a tower structure according to claim 5, wherein the first structure and The second structure has a substantially rectangular planar shape, and column members are provided at each of the four corners of the planar shape. Further, the step of relatively fixing the first structure body to the base member provided on the work steel base includes the following steps.

A member serving as the strut member of the second structure is inserted between the strut member of the first structure and the base member, and is provided near the lower end of the strut member of the first structure. The vicinity of the upper end of the pillar member of the second structure is connected, and the vicinity of the lower end of the pillar member of the second structure is connected to the base member.

[0023]

According to the working steel base according to the present invention, the base member fixed to the base, the four pillar members vertically installed in the vicinity of the base member, and the four pillar members. A lift member movable up and down along the member and an elevating means for elevating the four lift members are provided.

When a tower-shaped structure is assembled by using the working steel stand having this structure, the first structure constituting the tower-shaped structure assembled on the lift member is lifted by using the elevating means. Then, a second structure can be assembled underneath this first structure. By repeating this process sequentially, the tower-like structure can be assembled only in the region inside the working steel stand.

As a result, the work of the tower-shaped structure at a high place, which has been a problem in the past, is unnecessary, and a large lift is not required. Furthermore, even if the first structure or the second structure is assembled in the factory and then carried into the site, it is not necessary to lift it using a large lift, so that the assembly work on the site can be easily performed. You can Therefore,
It is possible to reduce the work on site, which can improve the quality of the tower structure and shorten the construction period.

Further preferably, the elevating means has four rod-shaped members each having a male screw formed on the surface of each of the pillar members, and a through hole having an inner screw formed on the inner surface thereof, the female screw engaging with the male screw of the rod-shaped member being formed. The rod-shaped member has an elevating member that can move in the vertical direction along the rod-shaped member by relatively rotating the male screw on the surface of the rod-shaped member and the female screw of the through hole.

As a result, since the screw engaging direction and the load supporting direction are different, the vertical positioning control of the lift member can be performed with high accuracy while supporting the heavy load applied to the lift member. You can

Still more preferably, the lift member has two connecting members so as to bridge between the column members facing each other. Thereby, the movements of the two lift members bridging the connecting member can be synchronized, and the lifting members can be easily controlled to move up and down.

Next, according to the method for assembling a tower-shaped structure according to the present invention, there is provided a method for assembling a tower-shaped structure which can be divided into a plurality of structures in the height direction. First, the first structure is assembled on the lift, the lift is used to lift the first structure, and then the first structure is relatively fixed to the base member provided on the work steel base. To do. Then, the second structure is formed under the first structure.

As a result, the tower-like structure can be assembled only by the working steel stand portion. As a result, the work at high places, which has been a problem in the past, is unnecessary and a large lift is not required. Further, since the first structure and the second structure are assembled in the factory in advance and carried in on site, they do not need to be suspended by a large crane on site,
It can be easily carried in, and therefore, it is possible to improve the quality and shorten the construction period.

Further preferably, in the step of relatively fixing the first structure to the base member, the column member used for the second structure is inserted between the first structure and the base member. . Accordingly, the first structure can be reliably fixed to the base member. Further, by using the member used for the first structure, it is possible to improve the work efficiency, and finally it is possible to prevent an increase in the number of parts that are not used for the tower structure.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings. First, with reference to FIG. 1, in this embodiment, a work steel base 100 is used, and the work steel base 1 is used.
00, the structures that form the tower-shaped structure 200 are sequentially assembled, the structure is raised in the direction of arrow A using the working steel base 100, and the next structure is assembled under the structure. It was done like this.

First, referring to FIG. 2, a working steel base 100.
The structure of will be described. Reference pillars 102 are fixed to the ground at positions near the four corners of a rectangle arranged substantially in the horizontal plane. The reference pillar 102 serves as a basis of the tower-shaped structure 200.

A steel base 110 is attached to the reference column 102.
Are mounted so as to bridge the reference column 102. At both ends of the steel base 110, four steel base columns 104 are provided.
Is fixed vertically to the ground. A steel base beam 106 and a steel base connecting beam 108 are attached to the upper end of the steel base column 104 so as to maintain the rigidity of the work steel base 100, and a reinforcing beam 122 and a steel base brace 124 are further attached.

Next, referring to FIG. 3, the steel base 110
A lift beam 112 is arranged above the above so as to bridge the steel beam 104. Both ends of the lift beam 112 are guided in the vertical direction along the recesses provided in the steel pedestal 104.

Steel base columns 104 at both ends of the lift beam 112
A center hole jack 114 for raising and lowering the lift beam 112 is attached in the vicinity of. Also,
The jack rod 116 for guiding the up and down movement of the center hole jack 114 has the center hole jack 114.
It is arranged so as to penetrate through.

The upper end of the jack rod 116 is fixed to the upper jack rod fixing bracket 118 attached to the steel pedestal 104, and the lower end thereof is the lower jack rod fixing bracket 120 attached to the steel pedestal base 110.
It is fixed to.

Next, referring to FIG. 4, the lift beam 11
2, the positional relationship between the center hole jack 114, the jack rod 116, and the steel pedestal 104 will be described. Note that FIG. 4 is a sectional view taken along the line XX in FIG.
First, the lift beam 112 includes the constituent beams 112a and 112b that are arranged in parallel at a predetermined distance, and the joint beam 11 that joins the constituent beams 112a and 112b.
2c and.

The center hole jack 114 is located between the constituent beams 112a and 112b and has a fixing pin 114e.
Are fixed by engaging the component beams 112a and 112b. The center rod jack 114 is arranged so that the jack rod 16 extends therethrough.

Further, both ends of the lift beam 112 are arranged so as to fit in the recess 104 provided in the steel pedestal 104, and are guided by the recess 104 to move up and down. Furthermore, between the constituent beams 112a and 112b,
The vertical column 202A used for the tower-shaped structure 100 is fixed by a bolt.

Next, the ascending / descending operation of the center hole jack 114 will be described with reference to FIGS. First, the structures of the center hole jack 114 and the jack bolt 116 will be described with reference to FIG. The center hole jack 114 has a first jack 114a and a second jack 114b.
Further, the first jack 114a has a first jack nut 114f which is rotated by a hydraulic pump 114c, and the second jack 114b also has a hydraulic pump 114d.
It has the 2nd jack nut 114g rotated by. Female threads are formed on the first jack nut 114f and the second jack nut 114g. Further, the jack rod 116 is formed with a male screw.

Next, referring to FIG. 5B, first,
The hydraulic pump 114c provided in the jack 114a is operated to rotate the first jack nut 114f. As a result, only the first jack 114a rises in the direction of arrow A. Next, referring to FIG. 5C, the second jack 11
The hydraulic pump 114d provided in 4b is operated to
Rotate the jack nut 114g. This makes the second
The jack 114b rises in the direction of arrow B. With the above operation, the center hole jack 114 is raised by the distance H.

In this way, the center hole jack 114 is moved up and down by screwing the screw between the jack rod 116 and the center hole jack 114. At this time, since the direction of the load applied to the center hole jack 114 and the direction in which the screw is screwed are different, the center hole jack 114
Even if a heavy load is applied to the center hole, the center hole jack 114 can be reliably supported and the position of the center hole jack 114 in the vertical direction can be controlled with high accuracy. In addition, FIG.
Although only the ascending step of the center hole jack is described in (c), the descending step can be easily performed by reversing the steps described above.

Next, the working steel stand 100 having the above-mentioned structure.
6 to 13 for the method of assembling the tower-like structure using
Will be described with reference to. In addition, in this embodiment, as an example of the tower-shaped structure, a method of assembling the multi-storey parking lot described in the related art will be described.

Since the structure of this multi-storey car park has almost the same structure when viewed from the four sides, the structure shown in FIG.
The assembling method will be described using only the side view corresponding to the arrow A in FIG.

First, with reference to FIG. 6, a working steel stand 100.
The vertical column 202A and the vertical column 204A are fixed to the lift beam 112 and the reference column 106 using bolts B ₁ and B ₂ . Then, the horizontal beams 206A to 206C are fixed by bolts or welding so as to bridge the vertical columns 202A and 204A. In addition, after that brace 208A
And brace 208B.

Next, referring to FIG. 7, the vertical columns 202A, 2
The exterior panel 210 is attached to the 04A and the lateral beams 206A to 206C using bolts or the like. As described above, the first structure 200A of the multi-storey parking lot 200 is completed. In addition,
Although not described in this step, the first structure 200
The drive unit located at A, the cage for mounting the vehicle, the chain of responsibility, etc. may be attached in advance.

Next, referring to FIG. 8, the bolt B ₂ fixing the vertical column 202A and the vertical column 204A to the reference column 102 is removed, and the lift beam 112 is raised by using the center hole jack 114.

Next, referring to FIG. 9, the first structure 200
A vertical column 202A, vertical column 204A and reference columns 102, 10
Between the vertical pillar 202B and the vertical pillar 204B of the second structure
Are inserted, and the vicinity of the lower end of the vertical pillar 202A and the vicinity of the upper end of the vertical pillar 202B are connected by bolts and the like, and the vicinity of the lower end of the vertical pillar 202B and the reference pillar 102 are connected by bolts and the like. In the same manner as above, the vertical pillar 204B is also used as the vertical pillar 2.
It is fixed between 04A and the reference column 102.

Next, referring to FIG. 10, the lift beam 1
The bolt B ₁ fixing the column 12 and the vertical columns 202A and 204A is removed, and only the lift beam 112 is lowered using the center hole jack 114. Then, the vertical columns 202A and 204A and the vertical columns 202B and 204B are firmly connected to each other using the reinforcing plate 212.

Here, referring to FIGS. 11 (a) to 11 (d), a method for connecting the vertical columns 202A and 202B will be described.
The details will be described.

First, referring to FIG. 11A, the state shown in this figure shows the state shown in FIG.
Shows the state immediately after raising. Next, FIG.
(B), after the bottom of the vertical columns 202A injects the Tatebashira 202B, and a vertical pillar 202A and Tatebashira 202B fixed using the bolts B ₃ with a reinforcing plate 214. Then, referring to FIG. 11C, the bolt B ₁ fixing the vertical column 202A and the lift beam 112 is removed, and only the lift beam 112 is lowered using the center hole jack 114. Then, referring to FIG. 11D, the vertical columns 202A and 202B are firmly fixed to each other by using the reinforcing plate 212 and the bolts B ₄ . In addition, vertical column 2
04A and the vertical column 204B are similarly fixed.

Next, referring to FIG. 12, similarly to the case shown in FIG. 6, the horizontal beams 206d to 206e are fixed by bolts or welding so as to bridge the vertical columns 202B and 204B. Furthermore, after that, the brace 208c and the brace 208d are attached. Then further exterior panel 21
By attaching 0 to the second structure under the first structure 200A
The structure 200B is completed.

Next, referring to FIG. 13, the steps shown in FIGS. 6 to 12 are sequentially repeated to complete a multi-storey car park 200 including a plurality of structures. After the multi-storey car park 200 is completed, the steel stand for work 10
0 is decomposed and removed.

As described above, according to this embodiment, the lift beam 1
Center hole jack 114
Is used to assemble the next structure under the structure. Therefore, since the assembling work can be performed only with the work steel table 100, it is not necessary to provide a scaffolding or a safety net for aerial work as in the conventional art, and the aerial work is not necessary. The dangerous work involved can also be reduced. Also,
By eliminating the work at high places, it becomes possible for ordinary workers to perform work that only skilled workers could do. In addition, because it does not require a large lift, it does not hinder the surrounding traffic, and it is possible to assemble a multi-storey parking lot without any restrictions, especially in a densely populated area such as a commercial area. Becomes

Further, in the above-mentioned embodiment, the structure is assembled on site, however, the structure is assembled in advance at the factory, the assembled structure is carried to the site, and is put in the working steel stand. Since it can be carried in without using a large lift, it is possible to improve quality and shorten the construction period.

Although a multi-storey parking lot has been described as an example of a tower-like structure in the above-described embodiments, it is not limited to a multi-storey parking lot, and it is not limited to a multi-storey parking lot, and is used for assembling power transmission line towers, lifting equipment experimental towers, office buildings, etc. Can also be used for

[0058]

As described above, according to the working steel stand according to the present invention, the base member fixed to the base, the four pillar members vertically arranged in the vicinity of the base member, A lift member that can move in the vertical direction along the four pillar members, and an elevating means for elevating the four lift members are provided.

When a tower-shaped structure is assembled using the working steel stand having this structure, the first structure constituting the tower-shaped structure assembled on the lift member is lifted using the lifting means. Then, a second structure can be assembled below this first structure. By repeating this process sequentially,
The tower-shaped structure can be assembled only at this work steel stand.

As a result, work at high places, which has been a problem in the past, is unnecessary, and a large lift is not required. In addition, the structure can be assembled in advance in a factory and brought to the site, so that it is possible to improve quality and shorten the construction period.

Preferably, the raising means includes four rod-shaped members each having a male screw formed on the surface of each of the pillar members,
The rod-shaped member has a through hole formed with a female screw to be screwed with the male screw, and the male screw on the surface of the rod-shaped member and the female screw of the through-hole relatively rotate to move vertically along the rod-shaped member. And a possible lifting member.

As a result, since the screwing direction and the load supporting direction are different, the vertical position control of the lift member can be performed with high accuracy while supporting the heavy load applied to the lift member. it can.

Further, more preferably, the four lift members have two connecting members so as to bridge between the column members facing each other. Thereby, the movements of the two lift members bridging the connecting member can be synchronized, and the position control of the lift members can be performed more easily.

Next, according to the method for assembling a tower-shaped structure according to the present invention, there is provided a method for assembling a tower-shaped structure which can be divided into a plurality of structures in the height direction. The first structure is assembled on the lift member of the first structure, lifted by using a lift, and then the first structure is fixed relative to the base member, and the second structure is formed under the first structure. is doing.

As a result, the tower-like structure can be assembled only at the working steel stand.

As a result, the work at high places, which has been a problem in the past, is unnecessary and a large lift is not required. In addition, since the structure can be assembled in advance in the factory and brought into the site, it is possible to improve the quality and shorten the construction period.

Further, preferably, in the step of relatively fixing the first structure to the base member, the support member used for the first structure is inserted between the support member of the first structure and the base member. is doing.

As a result, the first structure can be reliably fixed to the base member. Further, by using the member used for the first structure, it is possible to improve work efficiency and prevent an increase in the number of parts that are not finally used for the tower-shaped structure.

[Brief description of drawings]

1 (a) and 1 (b) are conceptual views showing a work steel base and a method for assembling a tower structure using the work steel base according to the present invention.

FIG. 2 is an overall perspective view of a work steel base based on the present invention.

FIG. 3 is a side view of a work steel base according to the present invention.

4 is a cross-sectional view taken along line XX in FIG.

5A to 5C are process diagrams showing the operating principle of the center hole jack used in the present invention.

FIG. 6 is a first diagram showing a method of assembling a tower-shaped structure according to the present invention.

FIG. 7 is a second diagram showing a method for assembling a tower-shaped structure according to the present invention.

FIG. 8 is a third view showing the method for assembling the tower-shaped structure according to the present invention.

FIG. 9 is a fourth view showing the method of assembling the tower-shaped structure according to the present invention.

FIG. 10 is a fifth view showing the method of assembling the tower-shaped structure according to the present invention.

11A to 11D are process diagrams showing a method of fixing the first structure.

FIG. 12 is a sixth diagram showing a method for assembling a tower-shaped structure according to the present invention.

FIG. 13 is a seventh diagram showing a method of assembling a tower-shaped structure according to the present invention.

FIG. 14 is an overall perspective view showing the structure of a multilevel parking lot.

FIG. 15 is a side view showing a frame structure of a multi-storey parking lot.

FIG. 16 is a schematic view showing an assembling method of a multi-storey parking lot in the related art.

[Explanation of symbols]

100 Working Steel Base 102 Standard Column 104 Steel Base Column 106 Steel Base Beam 108 Steel Base Connecting Beam 110 Steel Base Base 112 Lift Beam 114 Center Hole Jack 116 Jack Rod 118 Upper Jack Rod Fixing Bracket 120 Lower Jack Rod Fixing Bracket 122 Reinforcing Beam 124 Steel stand brace 202A, 202B, 204A, 204B Vertical column 206A, 206B, 206C, 206D, 206E
Lateral beams 208A, 208B, 208C, 208D Brace 212, 214 Reinforcing plate The same reference numerals in the drawings indicate the same or corresponding portions.

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Claims (6)

(57) [Claims] 1. A base member of a tower-shaped structure, which is arranged at least near four corners of a rectangle arranged in a horizontal plane and fixed to a base, and outside the base member, the four corners of the rectangle. Vertically mounted four pillar members that are fixed to each of the neighboring positions, and can move vertically along each of the four pillar members while being located in substantially the same horizontal plane Steel stand for work, comprising: four lifting members; and lifting means for lifting the four lifting members. 2. The elevating means is arranged in parallel with each of the pillar members at a predetermined distance in close proximity to each other, and has four rod-shaped members each having a male screw formed on a surface thereof, and the rod-shaped members on an inner surface thereof. Having a through hole in which a female screw to be screwed with the male screw of the member is formed, by rotating the male screw on the surface of the rod-shaped member and the female screw of the through hole relatively,
The steel stand for work according to claim 1, further comprising an elevating member that is vertically movable along the rod-shaped member. 3. The working steel stand according to claim 1, wherein each of the four lift members has two connecting members so as to bridge between the column members facing each other. 4. The four pillar members each have a concave cross section, and are arranged so that the recesses face each other so as to guide both ends of the connecting member. The working steel stand according to claim 3, further comprising two receiving members arranged in parallel, and the elevating member is provided between the two receiving members. 5. The work according to any one of claims 1 to 4.
A method for assembling a tower-shaped structure, which is capable of being divided into a plurality of structures in a height direction by using a steel table, wherein a work steel table having a lift member that can be raised and lowered is provided on the lift member. 1 step of assembling a structure; step of raising the first structure by a predetermined distance using the lift member; and providing the first structure on the working steel base at a position raised by the predetermined distance. Fixing the base member to the fixed base member, lowering only the lift member, and assembling a second structure under the first structure to form the first structure.
A method of assembling a tower-shaped structure, comprising: connecting a structure and the second structure. 6. The first structure and the second structure are
The step of fixing the first structure to a base member provided on the working steel base relatively has a substantially rectangular planar shape, and column members are provided at each of the four corners of the planar shape. A member serving as the strut member of the second structure is inserted between the strut member of one structure and the base member, and the lower end of the strut member of the first structure and the second structure are inserted. 6. The method for assembling a tower-like structure according to claim 5, further comprising the step of connecting the vicinity of the upper end of the support column member to the vicinity of the lower end of the support member of the second structure and the base member. .