Gauge plate, method for manufacturing the same, and method for installing equipment

Abstract

To provide a gage plate which is light-weight, soft, inexpensive and can be easily disposed, a manufacturing method thereof, and an apparatus installation method using the gage plate.SOLUTION: A gage plate is used for positioning an anchor bolt for fixing an apparatus during an installation work of the apparatus, and is formed of a soft resin sheet. A manufacturing method of the gage plate comprises a step of abutting the soft resin sheet onto a flange of the apparatus, drawing a line along a peripheral edge of the flange on the sheet while marking at a prescribed position corresponding to a bolt insertion hole of the flange. A hole for the anchor bolt is drilled using the gage plate to erect the anchor bolt and install the apparatus.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a gauge plate used when determining (positioning) the installation position of anchor bolts for fixing equipment such as tanks and towers, a method for manufacturing the same, and a method for installing equipment such as tanks and towers using this gauge plate.

Background Art

[0002] When installing equipment such as tanks and towers on a foundation formed of concrete, the equipment is fixed to the foundation by anchor bolts embedded in the foundation. The equipment is provided with a plurality of bolt insertion holes for inserting the anchor bolts. The anchor bolts need to be accurately positioned so as to match the positions of the bolt insertion holes. In order to position the anchor bolts, a member (jig) called a gauge plate is used.

[0003] Patent Document 1 describes a gauge plate formed by assembling straight bar-shaped members into a square grid shape.

[0004] Although the gauge plate of Patent Document 1 is square as described above, an annular gauge plate has also been conventionally used. This annular gauge plate is made of iron.

[0005] The installation work procedures for tanks and iron towers using an iron gauge plate are as follows. (1) It is shipped from the manufacturing factory to the construction site by a 4-ton truck and unloaded at the temporary storage area with a crane when received at the site. (Since it is large and heavy, a truck and a crane are used.) (2) Marking for installing the gauge plate is performed on the foundation. Marking means writing azimuth marks on the foundation (installation location) to indicate the correct position as per the design drawing. (3) The gauge plate is slightly lifted using a crane, and after aligning the marking azimuth mark and the gauge plate azimuth mark, the gauge plate is lowered and installed on the foundation. (4) After installing the gauge plate, trace the positions of the anchor bolts on the foundation and remove the gauge plate with a crane. (5) Using a drill, make holes for the anchor bolts at the positions traced in (4) and install the anchor bolts. (6) Install a tank, a tower, or the like on this foundation and fix it with the anchor bolts.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] Conventional gauge plates are made of iron members and thus have the following demerits. (1) Since they are heavy objects and large in size, a truck or the like is required for transportation. Also, during installation, a crane or the like is required, and safety measures for supervisors and the like are necessary. (2) The material cost and processing cost are high. In the case of an annular gauge plate, cross-shaped support members are required. (3) They are heavy iron objects, and the disposal cost after use is high.

[0008] An object of the present invention is to solve these problems and provide a lightweight, soft, inexpensive, and easily disposable gauge plate and a method for manufacturing the same, as well as a method for installing equipment using this gauge plate.

Means for Solving the Problems

[0009] The gauge plate of the present invention is a gauge plate used for positioning anchor bolts for fixing equipment during equipment installation work, and is characterized by being made of a soft resin sheet.

[0010] In one aspect of the present invention, small holes are provided at positions corresponding to the anchor bolt positions.

[0011] In one aspect of the present invention, a plurality of sheet materials are added to form a sheet of a predetermined size.

[0012] In one aspect of the present invention, the resin is PET, PE, PP, or PVC.

[0013] The method for manufacturing the gauge plate of the present invention is a method for manufacturing the gauge plate of the present invention, which comprises applying a soft resin sheet to the flange portion of the device, drawing a line along the periphery of the flange portion on the sheet, and marking a predetermined position corresponding to the bolt insertion hole of the flange.

[0014] In one aspect of the present invention, small holes are provided as the marks.

[0015] In one aspect of the present invention, information regarding the drawing or orientation of the device is written or pasted.

[0016] The method for installing the device of the present invention is a method for installing the device using the gauge plate of the present invention, which comprises installing the gauge plate at the location where the device is to be installed, providing holes for the anchor bolts and erecting the anchor bolts, and installing the device and fixing it with the anchor bolts.

Effect of the Invention

[0017] The gauge plate of the present invention is lightweight and soft, and the resin sheet can be rolled up for transportation, making transportation easy. For example, it can be transported using mixed cargo flights. Since it can be easily carried by hand, a crane or the like is not required, nor is a safety inspector.

[0018] The gauge plate of the present invention is made of a resin sheet, so both the material cost and the processing cost are low, and it can be easily disposed of as plastic waste. By attaching the drawing to the sheet, the work can be carried out only with the sheet.

[0019] When the resin sheet is made of a sheet such as PET, it has high tensile strength, water resistance, and can be used without problems even in the rain. There is almost no thermal deformation, and it can be left outdoors.

[0020] Sheets such as PET are transparent and can be compared with the base layout.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Modes for Carrying Out the Invention

[0022] Hereinafter, embodiments will be described with reference to the drawings.

[0023] FIG. 1 is a plan view showing a gauge plate according to the first embodiment. This gauge plate 1 is composed of a sheet 2 made of a soft resin. This gauge plate 1 is used when fixing the flange at the bottom of equipment such as a tank or a tower to the foundation. In this embodiment, the flange is in the form of an annular plate, and bolt insertion holes are provided at equally divided positions in the circumferential direction, for example, at the 12 equally divided positions.

[0024] On the sheet 2, a large-diameter circular line 3 having substantially the same diameter as the outer peripheral edge of the flange and a small-diameter circular line 4 having substantially the same diameter as the inner peripheral edge of the flange are drawn. The lines 3 and 4 are concentric circles. Also, small circular holes 5 are provided at positions overlapping each bolt insertion hole. Also, a first line 6 in the diameter direction and a second line 7 orthogonal to this are drawn.

[0025] Note that line 3 can be drawn by overlapping the sheet 2 and the flange and moving an oil-based magic marker along the outer circumference of the flange, and line 4 can be drawn by moving the oil-based magic marker along the inner circumference of the flange. The small hole 5 can be formed by drawing a small circle by moving the oil-based magic marker along the inner circumference of the bolt insertion hole of the flange and then cutting it out using a cutter or a punching blade.

[0026] Lines 6 and 7 pass through the centers of the circular lines 3 and 4. These lines 6 and 7 can be drawn using a ruler and an oil-based magic marker.

[0027] In Fig. 1, line 4 corresponding to the inner peripheral edge of the flange is drawn, but when a person cannot enter the inside of a tank or the like, line 4 may be omitted.

[0028] In the present invention, the name of the equipment installed using the gauge plate 1 and the orientation of the gauge plate may be described on the sheet 2. Further, a display such as a piece of paper on which an assembly drawing of the equipment is drawn may be attached to the sheet 2. An example of this is shown in Fig. 2.

[0029] In the gauge plate 1' of Fig. 2, the name of the equipment and the orientation (not shown) are described inside the frame-shaped line 8. Further, a display 9 such as a piece of paper on which the drawing is described is attached. Other configurations of the gauge plate 1' are the same as those of the gauge plate 1.

[0030] As the resin of the sheet 2, PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), or PVC (polyvinyl chloride) etc. (especially PET) is suitable, and especially PET is suitable. 。

[0031] This PET, PE, PP, or PVC sheet of this thickness is transparent and soft enough to be wound by hand.

[0032] The sheet 2 may be a single piece, but when the equipment is large, it may also be made by adhering the edges of two or more sheet materials together with an adhesive or the like.

[0033] Next, the procedure for installing the equipment using this gauge plate 1 or 1' will be described. (1) First, after manufacturing the gauge plate 1 or 1', it is wound into a cylindrical shape and preferably housed in a cylindrical case. (2) It is shipped from the manufacturing factory by consolidated freight to the construction site and unloaded manually at the temporary storage location upon receiving at the site. Since the gauge plate is lightweight and is wound and miniaturized, transportation, unloading, etc. are easy. (3) Markings for installing the gauge plate are made on the foundation. (4) Manually align and install the marking orientation mark and the gauge plate orientation mark. (5) After installing the gauge plate, transfer the anchor bolt positions onto the foundation. For example, make marks on the foundation with oil-based magic through the small holes 5. (6) Remove the gauge plate manually. Since the removed gauge plate becomes unnecessary, it is disposed of as plastic waste. (7) Drill holes for the anchor bolts at the marked locations. (8) Install the equipment and fix it with anchor bolts. That is, for example, drive concrete anchor bolts into the holes, insert each anchor bolt through the bolt insertion holes of the equipment, and tighten nuts onto the anchor bolts via washers.

[0034] In this way, by rolling this gauge plate 1 or 1' into a cylindrical shape, it can be easily transported by consolidated freight or the like. Also, it can be easily carried by hand. Moreover, the installation work of the equipment using the gauge plate can be carried out quickly and safely. By attaching the drawing to the sheet, it becomes possible to work only with the sheet.

[0035] This gauge plate is inexpensive both in terms of material cost and processing cost and can be disposed of as plastic waste.

[0036] When the sheet 2 of this gauge plate 1 or 1' is made of PET, PE, PP, or PVC, it has high tensile strength, water resistance, and is not a problem even when exposed to rain. Also, there is almost no thermal deformation and it can be left outdoors. The sheet 2 such as PET is transparent and can be compared with the base layout.

[0037] The above embodiments are examples of the present invention, and the present invention is not limited to the above embodiments. For example, in the above embodiments, the sheet is square, but it is not limited to this. Also, the lines 3 and 4 are circular, but it is not limited to this.

Explanation of Reference Numerals

[0038] 1, 1' Gauge plate 2 Sheet 3, 4, 6, 7, 8 Lines 5 Small holes 9 Display object

Claims

A method for manufacturing a gauge plate made of a soft resin sheet used for positioning an anchor bolt during installation work of a device such as a tank or a tower, the device having a flange portion with an anchor bolt insertion hole, comprising: Applying the soft resin sheet to the flange portion, drawing a line along the periphery of the flange portion on the soft resin sheet, and making a mark at a predetermined position corresponding to the anchor bolt insertion hole of the flange portion. The method for manufacturing a gauge plate according to claim 1, wherein a small hole is provided as the mark. The method for manufacturing a gauge plate according to claim 1 or 2, wherein the soft resin sheet is formed by adding a plurality of sheet materials to form a soft resin sheet of a predetermined size.

4. The method for manufacturing a gauge plate according to any one of claims 1 to 3, wherein the soft resin is PET, PE, PP, or PVC. The method for manufacturing a gauge plate according to any one of claims 1 to 4, wherein information regarding the drawing or orientation of the device is written or pasted.

6. A method for installing a device such as a tank or a tower using a gauge plate manufactured by the method for manufacturing a gauge plate according to any one of claims 1 to 5, comprising: A step of installing a gauge plate at a planned location for installing the device, a step of providing a hole for an anchor bolt at the position of the mark and erecting the anchor bolt, a step of installing the device, and a step of fixing the device with the anchor bolt.

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