JPH0446023Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" The invention relates to a unit for adjusting the erection of steel columns, and more specifically, the invention relates to a unit for adjusting the erection of steel columns. This invention relates to a steel column erection adjustment device that is removably interposed between the legs of the column, and a work floor for welding, etc., and various safety and curing facilities associated with the work are integrally assembled.

``Conventional technology'' Conventionally, in high-rise steel structures, when the column joints of each section are fixed by welding, the majority of the assembly procedures are to build the next section on top of the previously fixed (hardened) framework. We use the layered construction method of piling up steel frames.

The procedure of this construction method is, for example, as shown in Fig. 8, the erected steel column 1a is temporarily held on the already fixed preceding steel column 1b using the erection piece 2, and then the adjacent steel column The beam 4 is temporarily attached between the joint parts 3 of the steel column 1a, and then the wire or chain 5 is attached to the required range of the steel column 1a in order to assemble the head of the steel column 1a in the normal plane position (that is, vertically). Adjustments to the erection of steel columns will be made, also known as straightening the gaps.

Thereafter, the hanging scaffold 6 and welding basket 7, etc. were quickly installed, and the beam 4 and the legs of the steel column 1a were fixed (final tightening, welding), and the temporary erection piece 2 was removed (cut). The removal of wires, wires, and chain 5 is completed, and the steel frame erection work for one section is completed.

``Problem that the invention seeks to solve'' By the way, in the above-mentioned procedure, the work of straightening the distortion and the installation and removal work of the hanging scaffold 6 and the welding cage 7 are work at heights, which is less safe and requires a skilled worker. Not only does it require more workers, but it also costs a considerable amount of money to maintain and manage temporary materials such as the erection piece 2 and wire 5, and it also has the disadvantage of requiring a long construction period for assembling and dismantling the temporary materials and implementing safety measures. It was hot.

Further, since the erection piece 2 becomes an obstacle during welding (fixing) work and reduces workability, there is a risk that welding defects may occur.

Therefore, the object of the present invention is to provide a steel column erecting adjustment unit that can improve construction efficiency, shorten construction period, and ensure safety, labor, and quality.

"Means for Solving the Problems" In order to achieve the above object, the present invention has an L-shaped frame 17 that can be fixed to a solid flat part of a steel frame, as shown in FIGS. 1 to 5. Adjustment mechanism section 20 extending from above with an appropriate number of arms 19 which are extendable and whose tips can be connected to the legs of the built-in steel frame 10b.
A steel frame column erection adjustment device 13 is provided, in which at least two of the adjustment mechanism parts are arranged at right angles in a horizontal plane, and are integrated by connecting means 32a, 32b between the frames of these adjustment mechanism parts. A work floor 14a, 14b with a central opening, consisting of at least two upper and lower stages, is attached to the steel column erection adjustment device via frames 32a, 32b integrally assembled to each of the above-mentioned frames.
and various safety and curing facilities surrounding the work floor 1
5 and 16, and an opening/closing means 35 on one side of the work floor and various safety and curing facilities for allowing the steel column to enter and exit the central opening.
A, 35b, 36... are provided.

"Function" When erecting a steel frame column, for example, first, the steel column erecting adjustment unit 11 is attached on the ground to the leg of the steel frame column 10a to be erected.

At this time, a straight line connecting the lower tip of each frame 17 (see point A in FIG. 2) and the tip of the arm 19 (see point C in FIG. 2) of each adjustment mechanism section 20 in the steel column erection adjustment device 13 is , in advance, so that each arm 19 is perpendicular to the bottom surface of the pedestal 17.
are adjusted by extending or contracting, and then the tips of each arm 19 are connected to the upper leg of the steel column 10a to be erected. At this time, the steel column erection adjustment device 13 is adjusted to the steel column 10 by appropriate means.
If it is rigidly integrated with the frame 17, the steel column 10a will be vertically incorporated into the bottom surface of the pedestal 17, which is preferable.

Next, the steel column 10a is attached to the steel column 1.
The steel column erecting adjustment device 13 is lifted up to near the head of the steel column 10e by a crane or the like, and then the steel column erection adjustment device 13
The lower end of each frame 17 is lowered so as to be pressed against the head side of the steel column 10e, and the lower part of each frame 17 is properly placed on a solid flat part of the steel frame (in the illustrated example, the joint part 12a). After that, the wire that was lifting the steel column 10a is released.

Now, the steel column 10a is installed almost vertically.Next, the steel column erection adjustment device Workers who have boarded the lower tiers of the multi-tiered work floors 14a and 14b, which are integrally assembled with the 1
This is confirmed using a measuring device (such as a laser beam directed toward a target provided at 0a), and fine adjustments are made by extending or contracting each arm 19 as necessary. At this point, the lower work floor 14
Fixing (welding) work will begin on the column joint of each column by the worker above a or an automatic welding machine, but if the beam installation work in the next process is to be carried out in advance, the adjacent steel column 10a will also be erected in the same way. Including, beam 1 between
2, work begins on fixing the joints of the steel column 10a and the beam 12.

After the fixing work is completed, a worker climbs onto the upper work floor 14b and disconnects the arm 19 of the steel column erection adjustment device 13 from the steel column 10a,
Opening/closing means 35a, 36b, 36 for the working floors 14a, 14b and various safety and curing facilities 15, 16...
The steel column erection adjustment unit 11 is removed from the steel column 10a by releasing the connection between the frame 17 of the steel column erection adjustment device 13 and the joint part 12a, etc., and is lowered to the ground for the next step. Preparation for construction begins.

In this way, fine erection adjustment, fixing work, management work, etc. can be performed continuously on the working floors 14a, 14b of the steel column erection adjustment unit 11.

``Example'' An example of the present invention will be described below based on the accompanying drawings.

In FIG. 1, reference numeral 10a denotes a steel column that is to be erected, and a steel column erecting adjustment unit 11 is attached in advance to the leg portion of the steel column 10a. 10b is a steel frame column undergoing erection adjustment, 10c is a steel frame column being temporarily maintained after the above erection adjustment, and 10d
10e is a steel column that is being fixed, and 10e is a preceding steel column that has been fixed.

The above-mentioned steel column 10 is under construction adjustment or fixing work
The lower part of the steel column erection adjustment unit 11 attached to b, 10c, and 10d is connected and fixed to the upper surface of the beam 12 (strictly speaking, the joint part 12a) assembled between the preceding steel columns 10e that have already been fixed. has been done.

Next, the steel column erection adjustment unit 11
As shown in FIGS. 2 to 5, there is a steel column erection adjustment device 13, upper and lower work floors 14a and 14b with a central opening, a wind protection net 15, and a handrail 16.
It consists of various safety and curing facilities.

The above-mentioned steel frame column erection adjustment device 13 moves two adjustment mechanism parts 20, 20 consisting of an L-shaped pedestal 17 and two first and second arms 18, 19 at right angles on the horizontal plane of the steel frame. The bottom surfaces of the horizontal pedestals 21 of the two pedestals 17, 17 are positioned on the same plane, and the pedestals 17, 17 are constructed between the two pedestals 17, 17, so that the construction can be adjusted from the direction (in the illustrated example, the X-Y axis direction). Connecting members (in the illustrated example, frames 32a and 3 described later)
2b is also used).

The pedestal 17 has a support column 22 rigidly erected from the rear of a horizontal platform 21 that is detachably fixed to the upper surface of the joint section 12a. That is, the above-mentioned joint part 12
Two pedestal brackets 23 are fixed in advance on the upper surface of the frame holder 23 via fixing jigs 24, and the horizontal table portion 21 is connected to the pedestal brackets 23 by pins 25.

A sliding mechanism such as a loose hole (not shown) is provided at the top end of the horizontal platform 21 to allow the horizontal platform 21 to
A guide roller 26 that can move forward and backward in the longitudinal direction of the steel frame 1 is attached, and the guide roller 26 is in contact with the side surface of the head of the fixed leading steel column 10e.

A first arm 18 consisting of a hydraulic cylinder extends horizontally and rigidly from the upper part of the support column section 22, and the tip of the piston rod section 27 is attached to a steel column 10b or the like which is erected via stud bolts or the like as appropriate. Connected to the lower side of the leg.

An outer cylinder 28 is rotatably supported at the upper end of the support column 22, and a hydraulic cylinder 29 is connected to the tip of the outer cylinder 28, and the outer cylinder 28 and the hydraulic cylinder 29 form a second arm. It consists of 19.

Piston rod portion 30 of the hydraulic cylinder 29
A pin 31 is connected to the side surface of the upper part of the leg of the steel column 10b or the like where the tip end is erected.

The work floors 14a, 14b are the horizontal base portions 2 of each frame 17 in the steel column erection adjustment device 13.
1, two vertical frames are provided using a large number of horizontal frames 32a and vertical frames 32b that are integrally assembled into a frame shape.

The lower work floor 14a has a lower horizontal frame 32a.
A checker plate 33 is laid on top of the work floor 14a, and erection adjustment and welding (fixing) work are performed on the work floor 14a. Further, the working floor 14a also serves as a floor for curing sparks during welding work.

The upper work floor 14b has an upper horizontal frame 32b.
A floor plate 34 is laid on top of the working floor 14b, on which the installation and dismantling work of the steel column erection adjustment device 13 is performed. Further, the working floor 14b also serves as a roof for rain protection during welding work.

A wind curing net 15 is installed around the area between the work floors 14a and 14b by using the vertical frame 32b, and above the periphery of the upper work floor 14a.
Handrails 16 are provided around each.

Further, one side of the working floors 14a, 14b, the wind curing net 15 and the handrail 16 are partially opened,
The steel columns 10a and the like are allowed to enter and exit the central openings of the work floors 14a and 14b. At the openings of the working floors 14a, 14b and the wind curing net 15, a single-open upper curing net 36 is attached. Of course, handrail 16
Also provided is an opening/closing means (not shown).

In the figure, numeral 37 is a rain protection sheet that closes the central opening of the upper work floor 14a, and 38a and 38b are doors that open and close the entrance and exit for installing the adjustment device provided in the wind protection net 15. Furthermore, 39a, 39b
40 is a lid for opening and closing the elevator opening provided on the work floors 14a and 14b, and 40 is a fixed leading steel column 10e.
This is a ramp attached to the platform for raising and lowering workers.

Therefore, in this embodiment, the steel column erection adjustment unit 11, that is, the steel column erection adjustment device 13
When installing it on the steel column 10a to be erected, first attach the tip of the guide roller 26 (A in Fig. 2).
(see point) and the tip of the piston rod portion 27 of the hydraulic cylinder (first arm) 18 (see point B in Figure 2) so that the straight line connecting the two points is perpendicular to the bottom surface of the pedestal 17 (horizontal pedestal portion 21). Both members 26, 27 as appropriate
Adjust by moving forward and backward.

After connecting the tip of the piston rod portion 27 of the hydraulic cylinder 18 to the lower leg of the steel column 10a, the tip of the piston rod portion 30 of the hydraulic cylinder 29 constituting the second arm 19 is connected to the steel column 10a.
Connect to the upper leg of 0a.

Next, the hydraulic cylinder 29 is contracted to position the tip of the piston rod 30 (see point C in FIG. 2) on the extension of the straight line connecting the tip of the guide roller 26 and the tip of the piston rod 27 of the hydraulic cylinder 18. do.

When the steel column erecting adjustment device 11 is erected, the guide roller 26 is pressed against the head of the fixed preceding steel column 10e, and the frame support 23 on the upper surface of the joint section 12a is pressed. If the steel column 10a is fixed to the steel column 1 as described above, the steel column 10a
This means that it is installed substantially perpendicular to 0e.
At this time, it is possible for the worker on the lower work floor 14a to correct minute shifts in the column joint using the hydraulic cylinder 18, and to make fine adjustments to the head position of the steel column 10e using the hydraulic cylinder 29. Needless to say.

In the above embodiment, the steel column erecting adjustment unit 11 is initially installed on the steel column 10 to be erected.
Instead of a, it may be set on the floor of the first floor of a steel frame structure, a fixed preceding steel column 10e, etc., and the steel column 10a to be erected later can be received and adjusted in a fixed position. Also, the first and second
The extension and contraction mechanism of the arms 18 and 19 is not limited to hydraulic cylinders, and various mechanical adjustment means such as a rack and pinion may be used. Furthermore, as a device for measuring whether the head of the erected steel column 10b is within an allowable range with respect to the regular plane position, the mount 1 of the steel column erecting adjustment device 13 on the ground or the
It is conceivable that a laser beam is emitted from above 7 toward a target provided at the head of the steel column 10b, but in this case, the target converts the beam into an electrical signal and sends it to the position of the pedestal 17 using a cable. It is also possible to amplify and display the adjustment amount of the adjustment mechanism section 20 by the display means, and adjust the stroke amount of the hydraulic cylinder or the like based on this. At this time, it is more suitable to pulse the light in order to distinguish it from sunlight.

Next, FIGS. 6 and 7 show another embodiment of the present invention, in which a steel column erection adjustment unit 1 is shown.
An automatic welding machine (multi-axis welding robot) 41 installed on the lower work floor 14a performs the welding work in 1.
This is an example in which continuous automatic welding is performed to improve quality by performing continuous automatic welding.

"Effects of the invention" As explained below, according to the invention, the L-shaped pedestal can be freely extended and contracted from the top of the L-shaped frame, which can be fixed to a solid flat surface of the steel frame, and the tip is connected to the leg of the built-in steel column. Adjustment mechanism part with the appropriate number of arms extended as possible,
A steel column erection adjustment device is provided, which is arranged at least in two directions at right angles in a horizontal plane, and is integrated by connecting means between the frames of these adjustment mechanism parts, and the steel column erection adjustment device is provided. Attach a centrally opened work floor consisting of at least two upper and lower stages and various safety and curing facilities surrounding the work floor via a frame integrally assembled to each of the above-mentioned mounts,
In addition, an opening/closing means is provided on one side of the work floor and various safety and curing facilities to allow the steel columns to enter and exit the central opening. The frame of each of the above-mentioned adjustment mechanisms in the adjustment device is attached to the leg of the steel column in advance and erected, and then the frame is fixed to a solid flat part of the steel frame, so that the steel column can be fixed to the steel frame. A work floor that can be erected vertically with reference to the column erection adjustment device, and for the work, a working floor consisting of at least two upper and lower stages attached to the steel column erection adjustment device, and various safety and curing facilities surrounding the working floor. With the above configuration, 1. Since vertical accuracy is ensured at the same time as the steel columns are erected, re-erecting requires only minor adjustments, increasing construction efficiency. In other words, eliminating the conventional distortion correction process leads to shorter construction times.

2. Work safety is further improved as there is no need to erect pillars at high places, remove scaffolding for welding, or install various safety and curing facilities.

3. Various safety and curing facilities will be completed at the same time as the pillar erection, improving work efficiency, reducing costs, and shortening the construction period.

4. Since there is no need for an erection piece that obstructs welding work, welding work becomes easier and quality is improved.

Effects such as this can be obtained.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of the construction of the present invention, Fig. 2 is a longitudinal cross-sectional side view of a unit for adjusting steel column erection, Fig. 3 is a cross-sectional plan view of Fig. 2, and Fig. 4 is Fig. 3. The A arrow view, Figure 5 is the same as the B arrow view, Figure 6 in Figure 3.
7 and 7 are a longitudinal sectional side view and a lateral plan view of a steel column erection adjustment unit showing another embodiment of the present invention, and FIG. 8 is a schematic diagram of a conventional example. 10a to 10e... Steel column, 11... Steel column erection adjustment unit, 12... Beam, 13... Steel column erection adjustment device, 14a, 14b... Working floor,
15... Wind curing net, 16... Handrail, 17...
Frame, 19...second arm, 20...adjustment mechanism section.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An L-shaped pedestal that can be fixed to a solid flat surface of a steel frame, and that can be extended and contracted and whose tip can be connected to the legs of a steel column to be erected. A steel frame column erected in which at least two adjustment mechanism sections each having at least one arm extending therefrom are disposed in at least a right angle direction, and these adjustment mechanism sections are integrated via a connecting means installed between the frames. In the adjustment device,
A work floor with a central opening consisting of at least two upper and lower stages and various safety and curing facilities surrounding the work floor are attached via a frame integrally assembled to each of the above-mentioned mounts. A unit for adjusting the erection of a steel frame column, characterized in that an opening/closing means is provided on one side of the curing facility to allow the steel column to enter and leave the central opening. (2) The steel column erecting adjustment unit as set forth in claim 1 of the utility model registration claim, characterized in that an automatic welding machine is installed on the lower work floor.