KR102426266B1 - Outer scaffolding system construction method for tank - Google Patents

Abstract

The present invention relates to a construction method of an outer system scaffolding for a spherical tank, in which a system scaffolding module is assembled and installed in multi-stages in an octagonal horizontal ring shape on an outer circumferential surface of a spherical tank installed by using supports, and required materials such as a work platform are optimized to allow quick installation and disassembly. The outer system scaffolding for a spherical tank is horizontally assembled and installed by the system scaffolding module of an octagonal horizontal ring shape, and each of the eight system scaffolding modules is manufactured by combining vertical and horizontal scaffoldings and the optimized working platform with dimensions determined according to a diameter of the spherical tank for each stage.

Description

Construction method of external system scaffolding for spherical tank {OUTER SCAFFOLDING SYSTEM CONSTRUCTION METHOD FOR TANK}

The present invention relates to an external system scaffold for a spherical tank. More specifically, the system scaffolding module is assembled and installed in multiple stages in the form of an octagonal horizontal ring on the outer circumferential surface of the spherical tank installed using a post to optimize the required materials such as a work platform to enable quick installation and dismantling, resulting in a more economical spherical shape. It relates to a method of constructing an external system scaffold for a tank.

Figures 1a and 1b is an exemplary view of the external prefabricated scaffolding system of the conventional spherical tank (10).

The spherical tank 10 is a steel structure for storing oil, etc., in the form of a circular ball with an empty inside, and a pole 20 is installed on the floor to be installed independently on the ground, and a spherical tank inside the pole 20 It can be seen that (10) is installed so that it is fixed.

At this time, referring to FIG. 1A , it can be seen that the working scaffold 30 is installed in multiple stages as an external scaffolding system along the outer circumferential surface of the spherical tank 10, and in order to install the working scaffold 30 horizontally, the pipe-shaped It can be seen that the vertical and scaffolding 40 are used.

At this time, according to FIG. 1b, it can be seen that a method of installing a plurality of brackets 50 on the outer circumferential surface of the spherical tank 10 in order to install the working scaffold 30 on the outer circumferential surface of the spherical tank 10 is also introduced.

Figure 1c shows an example of the installation of the maintenance bogie 61 and the turning device 62 installed along the outer peripheral surface of the conventional spherical tank (10).

That is, after the spherical tank 10 is constructed by the pole 20, the spherical tank 10 external surface painting work, or a maintenance bogie 61 that a worker can work for to perform maintenance work. In the installation, after installing the rail 63 and the turning device 62 on the outer peripheral surface of the spherical tank 10,

It can be seen that the maintenance bogie 61 or the turning device 62 can move or turn along the outer peripheral surface of the spherical tank 10 by using a separate driving system.

Therefore, conventionally, a bogie or a turning device can be used for maintenance of the outer peripheral surface of the spherical tank 10, but since the work range of such a bogie or a turning device is very limited in a way that an operator boards, a plurality of the spherical tank 10 It can be seen that a method of installing a work scaffold by using the scaffold 40 of the spherical tank 10 and working along the outer circumferential surface of the spherical tank 10 is also introduced.

However, referring to Figures 1a and 1b for the method of installing the scaffold 40 and the work scaffold, the installation and dismantling work is complicated and costly, and it is not an economical approach based on the optimal structural analysis. There were limits.

Japanese Patent Application Laid-Open No. 2002-242424 (Title of the invention: Turning and launching device for spherical tank, publication date: August 28, 2002) Japanese Patent Application Laid-Open No. 2001-63797 (Title of the invention: Slewing platform for upper and outer surface of spherical tank, publication date: March 13, 2001) Republic of Korea Registered Utility Model No. 20-0354692 (Title of the invention: Worktable left and right rotation device in prefabricated scaffolding system for external inspection and repair of old tanks, publication date: July 05, 2004)

Therefore, in the present invention, when installing the external system scaffolding for a spherical tank, the space where the operator can work is installed in multiple stages on the outer circumferential surface of the spherical tank in a state where the type and size of the working scaffold and the vertical and horizontal scaffold are optimized, but structural stability and economic feasibility It is a technical task to solve the provision of an external system scaffolding construction method for spherical tanks that can secure

In addition, the present invention provides a faster method of constructing an external system scaffold for a spherical tank by using an external system scaffold for a spherical tank that is modularized to facilitate installation and dismantling of the spherical tank installed on a post in multi-stage installation of an external system scaffold for a spherical tank. It is a technical task to be solved.

In addition, the present invention is a technical task to solve the provision of an external system scaffold for a spherical tank construction method for a spherical tank that can be more structured because it uses an advanced system scaffold unlike the conventional installation method.

The method for constructing an external system scaffold for a spherical tank of the present invention for achieving the above object is, (a) in the form of eight trapezoids in which the installation width becomes narrower toward the center according to the diameter of the outer circumferential surface of the spherical tank, Assembling and installing a system scaffolding module in the form of an octagonal horizontal ring for each stage; (b) the system scaffold module is arranged in an octagonal horizontal ring shape, so as to secure a working space for the operator around the outer circumferential surface of the post and the spherical tank; and (c) installing the horizontal member together with the system scaffolding module so that the system scaffolding modules assembled and installed in the eight trapezoidal shape are horizontally connected to each other so that the damage of the system scaffolding module is not transmitted to other system scaffolding modules. , each of the eight trapezoidal system scaffolding modules can be installed by examining the structural stability in advance using a combination of a working scaffold and a vertical and horizontal scaffold whose dimensions are determined according to the diameter of the spherical tank at each stage. .

According to the present invention, since the diameter of the outer peripheral surface is constantly changed from the bottom to the top of the spherical tank, the external system scaffold for the spherical tank is horizontally assembled and installed as a system scaffold module in the form of an octagonal horizontal ring, but each of 8 system scaffolding modules The spherical tank is more efficient and economical because it can be installed by sufficiently examining the structural stability in advance by using a combination of the optimal working scaffold and vertical and horizontal scaffolding, the dimensions of which are determined according to the diameter of the spherical tank according to each stage. It becomes possible to provide an external system scaffolding construction method.

In addition, since the eight system scaffolding modules of the present invention can individually resist external load by restraining the horizontal member and the inclined member to each other corresponding to the spherical tank and the pole at each stage, more stable external system scaffolding for the spherical tank method can be provided.

In addition, since the eight system scaffolding modules of the present invention are manufactured by combining a working scaffold and a vertical and horizontal scaffold, the material recovery rate is increased because it is easy to assemble and dismantle, and it is possible to provide a quick construction method for an external system scaffold for a spherical tank. .

1A and 1B are exemplary views of an external prefabricated scaffolding system of a conventional spherical tank;
1c is an example of installation of a maintenance bogie and a turning device installed along the outer peripheral surface of a conventional spherical tank;
Figure 2a and Figure 2b is a construction sectional view of the external system scaffolding for a spherical tank of the present invention and an exemplary view of the system scaffold module installation,
3a, 3b and 3c and 3d are an exemplary view of a working scaffold, a vertical horizontal scaffold, a slope member, a horizontal member, and an upper truss of an external system scaffold for a spherical tank of the present invention;
Figure 4a, Figure 4b, Figure 4c, Figure 4d and Figure 4e is a construction flow chart of the external system scaffold for a spherical tank of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

[External system scaffolding for spherical tank of the present invention (100)]

Figures 2a and 2b shows a construction sectional view of the external system scaffold 100 for a spherical tank of the present invention and an exemplary view of the system scaffold module installation.

The external system scaffold 100 for a spherical tank of the present invention is, with reference to FIG. 2a, the outside of the spherical tank 220 is integrally fixed to a plurality of posts 210 so that the lower end 230 is located spaced apart from the ground, It is spaced apart from the outer peripheral surface over 240 and the lower end 230 so that the external system scaffold 100 for the spherical tank is installed in multiple stages (eg, the first stage to the 18th stage).

That is, the external system scaffold 100 for the spherical tank is installed in multiple stages (1 to 18 stages) in a horizontal ring form so that the working scaffold 120 installed by the vertical horizontal scaffold 130 surrounds the outer circumferential surface of the spherical tank 220 . It can be seen that this was done.

Accordingly, according to FIG. 2b , the external system scaffolding 100 for a spherical tank of each stage (eg, 1st stage, 2nd stage ... 18 stages) has eight system scaffolding modules 110 of the spherical tank 220 . In response to the diameter of the outer circumferential surface, for example, but assembled in a trapezoidal shape, it can be seen that as a whole, it is horizontally assembled in the form of an octagonal horizontal ring,

It can be seen that each system scaffolding module 110 is connected to and supported by the spherical tank 220 on the post 210 while constrained to each other using the horizontal member 150 and the inclined member 140 .

At this time, when assembling and installing the system scaffolding module 110 in the form of 8 trapezoids at each stage, the working scaffold 120 used for each of the 8 system scaffolding modules 110 can be assembled and installed with a minimum number of work. It is possible to optimize the number of assembly of the scaffold 120 and the vertical and horizontal scaffolding 130,

Since each of the system scaffolding modules 110 is installed separately from each other, there is an advantage in that the damage of a specific system scaffolding module 110 does not affect the other system scaffolding modules 110 .

In addition, each of the system scaffolding modules 110 uses a standardized work scaffold 120 and vertical and horizontal scaffolding 130 to simplify assembly, manufacturing and dismantling, thereby simplifying the structural design to enable effective quality control and construction management. do.

Accordingly, the external system scaffolding 100 for a spherical tank of the present invention is a system scaffolding module 110, a working scaffold 120, a vertical horizontal scaffolding 130, a slope member 140, a horizontal member as shown in FIGS. 2a and 2b ( 150), and the upper truss 160 is included.

The system scaffolding module 110 is assembled and installed in the form of eight trapezoids toward the center according to the diameter of the outer circumferential surface of the spherical tank 220 (the form of which the installation width becomes narrower toward the center), as shown in FIGS. 2a and 2b. As an octagonal horizontal ring for every stage (4, 13, and 18 stages in the case of FIG. 2b), the spherical tank 220 uses a vertical horizontal scaffold 130 on the entire outer peripheral surface of the spherical tank 220 to install the working scaffold 120 into the spherical tank. It is spaced apart from the outer peripheral surface of 220 so that it can be installed and dismantled.

At this time, it can be seen that each of the eight system scaffolding modules 110 are horizontally connected to each other by the horizontal member 150 and are constrained.

That is, although the system scaffolding module 110 installed from the first stage to the 18th stage is installed vertically spaced apart from the spherical tank 220 as shown in FIG. 2A, in FIG. 2B, 4 stages, 13 stages, and 18 stages A cross-sectional view of the system scaffolding module 110 is shown representatively.

For example, in the external system scaffolding 100 for a spherical tank installed in the fourth stage of FIG. 2b, eight system scaffolding modules 110 are horizontally connected to each other and arranged in the form of an octagonal horizontal ring toward the center of the spherical tank. can be found

In response to the total area to be installed, each of the eight system scaffolding modules 110 only needs to be installed by connecting only 1-3 types of work scaffolds 120 to the vertical and horizontal scaffolding 130, so that quick installation and release are possible. do.

Next, as the 13th and 18th stages of FIG. 2b, the external system scaffolding 100 for the spherical tank is also connected to the eight system scaffolding modules 110 to be arranged in the form of an octagonal horizontal ring toward the center of the spherical tank. is the same,

However, since there is a difference in the diameter of the spherical tank 220 corresponding to the 13th and 18th stages, it can be seen that there is a difference only in the number of installations of the working scaffolding 120 using the vertical horizontal scaffolding 130 installed,

In particular, in the case of the 18th stage, it can be seen that the installation number of the working scaffold 120 is the largest because it is installed up to the upper end of the spherical tank 220 .

As a result, the working scaffold 120 and the vertical and horizontal scaffolding 130 constituting the system scaffold module 110 can be designed so that only the number of installations differs according to each stage, making the design simple and structural analysis easy to secure and verify structural safety. This is made possible, and since there is only a partial difference between the size of the same shape and size, it is possible to increase the speed of installation and dismantling, so that more economical construction of the external system scaffold 100 for a spherical tank is possible.

In addition, although the system scaffolding module 110 of each stage is horizontally bound by the horizontal member 150, since they are installed separately from each other, even if any one of the system scaffolding modules 110 is damaged, the remaining 7 system scaffolding modules 110 have a large It is in a more stable state without any influence, and even if an unpredictable wind force occurs, each system scaffold module 110 is arranged to face the center of the spherical tank 220, so that it resists stably and the surrounding system scaffold module 110 It is possible not to transmit the effect to

This system scaffold module 110 is a spherical tank 220 in the process of installing the working scaffold 120 to be described later with the vertical horizontal scaffold 130 , the inclined member 140 , the horizontal member 150 , and the upper truss 160 . It is installed in the form of eight trapezoids on the outer circumferential surface and is installed in the form of an octagonal horizontal ring overall.

Next, the work scaffold 120 is, as shown in FIGS. 2a and 2b, each of the system scaffolding modules 110 is arranged in the form of an octagonal horizontal ring, the post 210, the spherical tank 220 around the outer peripheral surface of the work to the operator In order to secure a space, such a work scaffold 120 is installed together when the system scaffolding module 110 is installed.

If there are too many types according to the size of the working scaffold 120 used in the external system scaffolding 100 for a spherical tank, the number of objects of the working scaffold 120 to be connected to the material supply and demand and the worker increases, so the working efficiency is lowered. It becomes inevitable, and the amount of connection work increases. Accordingly, the present invention does not manufacture and procure a plurality of work scaffolds according to the area to be installed in the system scaffolding module 110 of each stage,

Since each of the eight system scaffolding modules 110 is installed by connecting only 1-3 types of working scaffolds 120 to the vertical and horizontal scaffolding 130, the present invention improves the use efficiency of the working scaffolds 120 and installs them. And it is possible to optimize the number of installations of the working scaffold 120 because it is easy to disassemble and use the verified working scaffold 120 that has received performance certification.

For example, the 4th, 13th, and 19th stages of FIG. 2b all work scaffold 120 used for the system scaffolding module 110, as shown in FIG. 3a, only the [B400 * 1829] size products are connected to each other to form an octagonal horizontal ring It can be seen that the assembly is installed in the form.

According to FIG. 3a, the types of the working scaffolds 120 used in the spherical tank 200 of the present invention are disclosed for each size, and the widths are all B400 products, only the extension lengths are different, and each of these works The scaffolding 120 is connected to each other to optimize the type and number of installations of the required working scaffolding 120 so that it can be used for all eight system scaffolding modules 110 .

The vertical horizontal scaffold 130 and the inclined member 140 are temporary materials used to install the working scaffold 120 of the system scaffolding module 110 of each stage with reference to FIGS. 2A and 2B, and the working scaffold 120 is ) is in the form of a horizontal plate, so it is installed in a three-dimensional form according to the height of each stage using the vertical horizontal scaffold 130 and the inclined material 140, and is also installed when the system scaffold module 110 is installed.

Specifically, according to FIGS. 3b and 3c, the vertical horizontal scaffolding 130 in the form of a single pipe pipe is connected by the inclined material 140, and the vertical scaffolding 130 also connects the unit length products to each other. Installation and disassembly are possible.

In the case of the inclined material 140, both ends are formed in the form of hooks, so that they are installed by hanging on the vertical horizontal scaffolding 130 at an angle to restrain the vertically extending vertical scaffolding 130 to each other to ensure stability. It can be seen that, only the type is different depending on the length of the slope.

The horizontal member 150 is for horizontally connecting the system scaffolding module 110 installed in the form of an octagonal horizontal ring in the system scaffolding module 110 of each stage as shown in FIGS. 2A and 2B. It can be done, and it will be installed together when the system scaffolding module 110 is installed.

As such a horizontal member 150, a single pipe pipe having fasteners formed at both ends can be used, and when referring to FIG. 2b, by using the side surfaces of each system scaffold module 110 to connect to each other, stability can be secured by binding them to each other. It is used to maintain the shape of an octagonal horizontal ring while maintaining the

In other words, since each of the system scaffolding modules 110 is installed separately from each other, the role of preventing the damage of a specific system scaffolding module 110 from being transmitted to other system scaffolding modules 110 (even if delivered, it is transmitted limitedly). The horizontal member 150 is in charge.

The upper truss 160 has an opening at the upper end 240 of the spherical tank 220, as shown in FIGS. 2A and 3D, so as not to block the opening, and the system scaffolding module 110 from the upper end 240. In order to stably connect each other, it can be installed in connection with the vertical and horizontal scaffolding 130 , and also installed together when the system scaffolding module 110 is installed.

When the upper truss is manufactured with the truss member in this way, it also serves as a work rail, so that the operator can easily access the opening, which is also advantageous for installation and dismantling.

[External system scaffolding 100 for spherical tank construction method of the present invention]

4a, 4b, 4c, 4d and 4e is a construction flow chart of the external system scaffold 100 for a spherical tank of the present invention.

The construction method of the external system scaffold 100 for a spherical tank is to install the external system scaffold 100 for a spherical tank on the outer circumferential surface of the spherical tank 220 installed to be spaced apart from the floor by a post 210 in an octagonal shape in upper and lower stages. It can be said that it is a method of installing in the form of a horizontal ring.

Accordingly, the required system scaffolding module 110, work scaffold 120, vertical horizontal scaffold 130, inclined member 140, horizontal member 150, upper truss 160 required for the installation of the external system scaffolding 100 for the spherical tank ) to prepare temporary materials such as

For example, although the number of temporary materials of the external system scaffold 100 for a spherical tank required for each of the first to 18 stages is different, assembling and connecting the eight external system scaffolding 100 for the spherical tank for each stage is the same, so quick assembly Installation is possible.

Accordingly, FIG. 4A shows an installation sectional view of the external system scaffold 100 for the spherical tank of the first, second, and third stages in the first to 18 stages of the spherical tank 220 according to FIG. 2A.

That is, the diameter of the spherical tank becomes smaller as it goes downward based on the middle of the spherical tank 220. In the case of the first stage, it is assembled and installed in the form of eight trapezoids connected by the horizontal member 150 to form an octagonal horizontal ring as a whole. It is installed, which only increases the number of installations of the working scaffold 120 as seen above compared to the upper stages, and is simply a work of installing using the vertical and horizontal scaffolding 130 , the inclined member 140 , and the horizontal member 150 . You can see that it can be installed.

Accordingly, the second and third stages have a larger diameter of the spherical tank 220 than the first stage, so it is the same to install in the form of an octagonal horizontal ring connected to the horizontal member 150, and the number of installations of the working platform 120 is It can be seen that less

Next, Figure 4b is a cross-sectional view of the installation of the external system scaffold 100 for the spherical tank of the 4,5,6,7,8,9 stages in the 1st to 18th stages of the spherical tank 220 according to Fig. 2a. it will be shown

Referring to Figure 2a, in the case of stage 4-9, the diameter of the spherical tank 220 is the largest, and since the section also includes the interference of the posts 210, it is in the form of an octagonal horizontal ring connected by a horizontal member 150. It can be seen that the installation is the same, and the number of installations of the working scaffold 120 is relatively reduced.

Next, FIGS. 4c, 4d, and 4e are external systems for spherical tanks of 10, 11, 12, 13, 14, 15, 16, 17, and 18 stages in the first to 18 stages of the spherical tank 220. It shows an installation sectional view of the scaffold 100 .

Referring to Figure 2a, the 10th - 18th stage corresponds to the upper end 240 side in the schematic middle part of the spherical tank 220, so the diameter of the spherical tank 220 is increased again, and the working scaffold 120 is relatively installed. The number of is also increased, and it is the same to install in the form of an octagonal horizontal ring connected to the horizontal member 150, and it can be seen that the spherical tank 220 is converging to the central point (center) when viewed in cross section.

Accordingly, as shown in FIG. 2a, the upper end 240 of the spherical tank 220 uses the upper truss 160 to complete the external system scaffold 100 for the spherical tank.

Accordingly, the operator performs repair and reinforcement of the outer peripheral surface of the spherical tank 220 by using the working scaffold 120 of the external system scaffold 100 for the spherical tank installed in the form of an octagonal horizontal ring installed at each stage, and when completed, the normal Since the external system scaffold 100 for the spherical tank is installed from the first stage at the bottom, the external system scaffold 100 for the spherical tank is dismantled from the top 240 in reverse.

That is, the work scaffold 120 and the vertical horizontal scaffold 130 are assembled and installed so that they can be separated by a fastening type, a socket type, etc. disassembly is possible.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention. do.

100: External system scaffolding for a spherical tank
110: system scaffold module 120: work scaffold
130: vertical and horizontal scaffolding 140: inclined material
150: horizontal member 160: upper truss
210: post 220: spherical tank
230: the bottom of the spherical tank 240: the top of the spherical tank

Claims (10)

delete delete delete delete delete delete (a) The system scaffolding module in the form of eight trapezoids in which the installation width becomes narrower toward the center according to the diameter of the outer circumferential surface of the spherical tank 220, and in the form of an octagonal horizontal ring at each stage of the spherical tank 220 Assembling and installing (110);
(b) the system scaffolding module 110 is arranged in the form of an octagonal horizontal ring so as to secure a working space for the operator around the outer peripheral surface of the post 210 and the spherical tank 220 and the system scaffolding module 110 and Assembling and installing the work platform 120 together; and
(c) the system scaffolding module 110 so that the damage of the system scaffolding module 110 is not transmitted to other system scaffolding modules 110 by horizontally connecting the system scaffolding modules 110 assembled and installed in the eight trapezoidal shape Including; installing the horizontal member 150 together with
Each of the eight trapezoidal system scaffolding modules 110 uses a combination of the working scaffold 120 and the vertical and horizontal scaffold 130 whose dimensions are determined according to the diameter of the spherical tank according to each stage to predict structural stability in advance. A method of constructing an external system scaffold for a spherical tank that can be reviewed and installed. 8. The method of claim 7,
In the step (a), according to the diameter of the outer peripheral surface of the spherical tank 220, in the form of eight trapezoids whose installation width becomes narrower toward the center according to the diameter of the outer circumferential surface of the spherical tank 220, in the form of an octagonal horizontal ring at each end of the spherical tank 220 The system scaffolding module 110 to be installed is,
From the middle of the spherical tank 220 to the upper end 240 and the lower end 230, the number of the working scaffolds 120 installed increases while the working scaffold 120 converges to the center of the spherical tank 220. How to construct an external system scaffold for a spherical tank. 8. The method of claim 7,
After step (c),
Using the upper truss 160 on the upper end 240 of the spherical tank 220, the external system scaffold 100 for the spherical tank is completed, and the operator is installed in the form of an octagonal horizontal ring installed at each stage. For spherical tanks that repair and reinforce the outer peripheral surface of the spherical tank 220 using the working scaffold 120 of the system scaffold 100, and dismantle the external system scaffold 100 for the spherical tank from the upper end 240 when completed External system scaffold construction method. 8. The method of claim 7,
The horizontal member 150 of step (a) is,
A single pipe pipe having fasteners formed at both ends can be used, and the side surfaces of each system scaffold module 110 are connected to each other and bound to maintain an octagonal horizontal ring shape,
The working scaffold 120 of step (b) is installed using a vertical horizontal scaffold 130,
The vertical and horizontal scaffolding 130 is a temporary material used to install the working scaffold 120 of the system scaffolding module 110 of each stage, and is formed in a three-dimensional form according to the height of each stage by using the inclined material 140 . Both ends are formed in the form of hooks so as to secure stability by restraining the vertically extending vertical scaffolding 130 by hanging on the vertical horizontal scaffolding 130 obliquely and installing the inclined member 140 to each other. A method of constructing an external system scaffold for a spherical tank using

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