JPH05231004A - Assembly of outdoor rack - Google Patents

Abstract

PURPOSE:To easily arrange a column base, to reduce the cost of a scaffold and a safety net required for altitude work by ground work and to realize highly efficient and safe work. CONSTITUTION:A plural number of lengthy column bases 4 are inserted with specified intervals in boxes 1 and each of the pedestals 4 is erected along the axis of the box 1 on a jack 3 provided on the bottom of the box 1. Thereafter, by making various pieces of work to position a joint part of the column base 4 and beams 5, 6 to lay the upper part of the pedestal 4 on a plural number of upper and lower steps on the ground by way of adjusting height with the jack 3, to joint column base 4 and the beams 5, 6 and to mount and set mounted articles such as a piping, a cable tray and others on a rack formed with the beams 5, 6 as ground work, a block is assembled. Additionally, after this assembly, perpendicularity of the column base 4 is adjusted with another jack 2 provided on the upper end of the box 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor rack assembling method suitable for assembling an outdoor rack for installing outdoor piping, cables and the like in a thermal power plant, a nuclear power plant and the like.

[0002]

2. Description of the Related Art A conventional outdoor rack assembly method will be described with reference to FIGS. In one conventional assembling method, first, the rack post 4 is erected on a foundation 13 provided at a predetermined interval on the ground, and then a rack beam 17 is provided above the rack post 4.
Assembling the outdoor racks while sequentially erection. Then, when the outdoor rack is assembled up to a predetermined distance from a certain point to another point, the mounted objects such as pipes and cables are taken in on the rack composed of the rack beams 17 and installed. Usually, in an outdoor rack, the rack is at a height of 5 to 10 m so that a car or a person can pass under the rack. Therefore, conventionally, the work from the assembling of the rack post and the rack beam to the installation of the load is not performed. All work in high places. Therefore, the scaffold 15 is required around the outdoor rack, and the safety net 16 is also required to be installed as a safety measure.
There is also a problem in that work efficiency in aerial work is lower than in ground work.

As another conventional assembling method, an outdoor rack is divided into blocks as shown in FIG. 8 and the blocks are sequentially connected to each other to assemble the blocks. In this method, first, a work place is provided in a certain area on the ground, several rack post bases 4 are set up at a predetermined interval there, and a rack within a range supported by those post bases is assembled, and the mounted items are also taken in on the rack. Make up one block 11. Next, this block 11 is carried to a predetermined place and installed on a predetermined foundation provided there. When one block 11 is installed, another block 11 is created again, and it is carried to the next predetermined place and installed. Then, these blocks are joined and the outdoor racks are sequentially assembled. In the method of assembling in blocks, since the block 11 is assembled in a constant work space, the work efficiency is slightly improved as compared with the method shown in FIG. However, even in the block forming method, since the rack pillar pedestal 4 is erected on the ground and the work from the connection of the rack pillar pedestal and the rack beam to the installation of the mounted object is performed, almost all the work is performed at a high place, and the scaffolding 15 ,
There is a problem that the safety net 16 needs to be laid and high efficiency work cannot be performed.

In any of the above assembling methods, after the outdoor rack is assembled, the verticality of the rack column base is checked. If the verticality is insufficient, the rack beam 17 is hung with a piano wire 19 and There is also a problem that the verticality of the rack pedestal must be corrected by pulling from the ground via the chain block 20.

As another known example, as a technique for reducing work at a high place during construction, for example, Japanese Patent Laid-Open No. 61-2901.
No. 68 and Japanese Patent Laid-Open No. 57-77762. Further, as a technique for improving the efficiency of horizontal and vertical adjustment work at the time of assembling a steel frame, there is one disclosed in Japanese Patent Laid-Open No. 59-96359.

[0006]

In the conventional outdoor rack assembling method, in order to assemble a rack having a height of 5 to 10 m on the ground, the rack column bases and the rack beams are coupled and the load is loaded on the rack. , Installation work becomes work in high places. In such work at high places, it is necessary to lay a high scaffold and a safety net to secure safety. The cost of laying these scaffolds and safety nets is enormous,
In order to keep the installation cost low, it is strongly desired to eliminate work in high places. Further, in terms of work efficiency, work in high places is low in efficiency, and it is desired to eliminate work in high places in order to improve work efficiency. Further, in the conventional method, the verticality of the column base of the rack is checked after assembling, and if it is not vertical, a correction work is required. Therefore, there is also a demand for a method capable of adjusting the verticality at the time of assembly as a part of improving work efficiency.

A first object of the present invention is to provide an outdoor rack assembling method which can reduce work at high places.

A second object of the present invention is to provide an outdoor rack assembling method which can reduce work at high places and does not require adjustment of verticality of the rack pedestal after installation.

[0009].

In order to achieve the above-mentioned first object, a first outdoor rack assembly method of the present invention is to set a predetermined number of column bases at predetermined intervals and to form those column bases. An outdoor rack assembly method that assembles unit-length outdoor racks by connecting the beams that pass between the upper parts of the legs, installing the pipes, cable trays, and other mounting items on the racks that are composed of those beams, and The column pedestals are inserted into a box with an upper opening buried in the ground at a predetermined interval between the column pedestals, and the core rod provided at the bottom of the box is fitted with the hole formed at the lower end of the column pedestal, and the axis of the box It is characterized by standing upright so that the upper part of the pedestal is positioned on the ground along the ground.

In order to achieve the above first object, the second outdoor rack assembly method of the present invention is such that a predetermined number of column bases are erected at predetermined intervals and the column bases are placed between the upper parts of the column bases. An outdoor rack assembling method of assembling a unit length outdoor rack, which is assembled by connecting beams, installing pipes, cable trays, etc. on a rack composed of those beams, and constructing a predetermined number of column bases, The box is formed by fitting the core rod provided on the upper part of the elevating means and the hole formed at the lower end of the column base onto the elevating means provided on the bottom surface of the box with the upper opening buried in the ground at predetermined intervals of those column bases. It stands up along the axis of and is arranged so that the upper part of the column base is positioned on the ground by the lifting means.

In order to achieve the above-mentioned second object, a third outdoor rack assembling method according to the present invention comprises standing a predetermined number of column bases at predetermined intervals and passing the column bases between the upper parts of the column bases. Connected by the beams, and piped on the rack composed of those beams,
An outdoor rack assembling method in which a unit such as a cable tray is installed and an outdoor rack of a unit length is assembled, in which a predetermined number of column bases are embedded in the ground at a predetermined interval between the column bases and the bottom of a box with an upper opening. The core rod provided on the upper part of the elevating means and the hole formed at the lower end of the column base are fitted on the elevating means provided on the stand to stand along the axis of the box, and the upper part of the column base is placed on the ground by the elevating means. , The column base and the beam are connected on the ground, the load is set on the ground, and then the side surface of the column base is pressed by the pressing means provided at the upper end of the box. It is characterized by adjusting the verticality of.

[0012]

According to the first method of assembling the outdoor rack of the present invention, the rack is inserted into a box buried at a predetermined interval and is set up along the axis of the box and the joint between the column base and the beam is on the ground. Therefore, the column bases can be arranged at a predetermined interval, and the mounted object can be placed and installed from the ground on the rack portion formed by joining the column bases and the beams and the beam.

In the second outdoor rack assembling method of the present invention, the box is embedded on the bottom of the box buried at a predetermined interval so as to stand along the axis of the box, and the column base is set by the lifting means. Since the joints of the beams are arranged so that they are on the ground, it is possible to arrange the column bases at a prescribed interval, and also to mount the mounts from the ground on the rack part formed by the joints of the column bases and beams and the beams. In addition, even when beams are provided in a plurality of stages to form a plurality of stages of rack portions, the height can be adjusted to a height suitable for ground work at any stage by the elevating means.

Further, in the third outdoor rack assembling method of the present invention, in addition to the second outdoor rack assembling method, the step of pressing the side surface of the column base by using the pressing means provided at the opening end of the box. Since the above is provided, the verticality of the column base can be adjusted at the time of assembling by the pressing means as needed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An outdoor rack assembly method according to an embodiment of the present invention will be described below with reference to the drawings. 1 is a plan view showing an assembling apparatus and a unit length outdoor rack for embodying the outdoor rack assembling method of the present invention, FIGS. 2 and 3 are side views of FIG. 1, and FIG. 4 is a partially enlarged side view of FIG. is there.

The unit-length outdoor rack (hereinafter referred to as a block) taken up here is a total of four rack column bases 4 which are respectively set up at the four corner points of a rectangle, and the rack column bases 4 have a width direction and a length between them. 2 in the vertical direction
It is composed of respective beams 5 and 6 connected in stages and pipes, cable trays and other mounted objects 8 respectively installed on the two-stage rack portion formed by the beams 5 and 6. .. For example, in a power plant, a large number of such blocks are connected to form a long outdoor rack of several kilometers.

The assembly device for manufacturing the block is shown in FIGS.
As shown in FIG. 4, it has four boxes 1 that are buried in the ground, in accordance with the positions of the four rack column bases 4 that form the block. Box 1 is a cylinder with a bottom,
A flange 1a having a brim shape is provided around the upper end opening, and the lower surface of the flange 1a is embedded so as to contact the ground. A hydraulic jack 2 is provided on the bottom surface of the box 1, and an adjusting plate 9 for mounting a rack column base is attached to an upper portion of the hydraulic jack 2. The gap between the adjusting plate 9 and the inner surface of the box 1 is provided so that the adjusting plate 9 moves smoothly up and down and there is no large play. Further, on the adjusting plate 9, there is provided a rod body 9a which fits into the bolt hole 10 formed in the base plate 7 at the lower end of the rack column base 4, and when the rack column base 4 is dropped into the box 1, a rod body 9a is provided. The body 9a and the bolt hole 10 are fitted to each other, and the rack post 4 is positioned. Further, this assembling apparatus is configured to match the vertical position of each rack column base 4 by matching the level of each adjusting plate 9. Further, on the flange 1a of the box 1, jack receivers 3 whose surfaces are oriented in the width direction or the longitudinal direction of the block and in the opening direction are provided at four places around the opening, and the jack receivers 3 are erected on the box 1. The jack 18 is inserted between the rack post 4 and the jack receiver 3, and the jack 18 allows the rack post 4 to move.
Used to adjust the verticality of the.

An assembling method for manufacturing a block using this assembling apparatus will be described with reference to FIGS. First,
The rack post 4 is inserted into the box 1 from above and stands on the adjusting plate 9 of the hydraulic jack 2. At this time, the hydraulic jack 2 is set so that the joint 4a (upper stage) of the rack post 4 is within the reach of a worker on the ground. Next, the upper beam 5 is passed between the rack column bases 4 to join the connection 4a (upper stage) and the end of the beam 5. After that, the mounted objects 8 such as pipes and cables are taken in from the ground in the upper rack portion formed by the upper beams 5, and installed at a predetermined position. Note that FIG. 2 shows a state in which the upper rack is assembled. At this time, if the rack post 4 is not vertical, the jack 18 is placed on the jack receiver 3 and the rack post 4 is pushed horizontally to adjust the verticality.

Next, as shown in FIG. 3, the level of the column base plate 7 is raised by the hydraulic jack 2 so that the lower rack beam 6 and the rack column base 4 have a height suitable for joining them on the ground. Then, the lower rack beam 6 and the rack post 4 are joined,
On the lower rack portion formed by the lower beam 6, the mounted objects 8 such as pipes and cables are taken in from the ground and installed.

Even in a block having a plurality of stages of racks as described above, the level can be adjusted by the hydraulic jack 2 so that any stage can be assembled on the ground to take in and install a load.

In this way, the block 11 of the outdoor rack supported by the four rack column bases 4 on which the loads 8 such as the pipes and cables shown in FIG. By using it, it can be assembled on the ground.

The assembled block 11 is pulled out from the box 1 by a crane or the like, transported to a construction site of an outdoor rack, and installed on a predetermined rack foundation 13 as shown in FIG. When the completed block 11 is pulled out from the box 1, the rack post 4 is newly dropped in the box 1, another block 11 is assembled, and they are sequentially installed on the rack foundation 13.

Although the work of joining the blocks 11 at the construction site is a high place work, the work of the scaffolding 14 for moving is possible because the joints 12 have a limited area, and the work can be performed over a wide area. There is no need for scaffolding or laying safety nets. The outdoor rack is completed by continuously joining the blocks 11 in this manner. INDUSTRIAL APPLICABILITY The present invention can be widely used not only for outdoor racks but also for assembling high-rise structures having column bases at equal intervals.

[0024]

According to the present invention, the first to third outdoor rack assembling methods of the present invention are performed by arranging the column bases in the ground at predetermined intervals in order to connect the upper part of the long column base and the beam. Since it is designed to be inserted into an embedded box and stand along the axis of the box and the joint between the column base and the beam is located on the ground, the column base can be set up at a predetermined interval, and It is possible to connect the work with the ground work, and it is also possible to directly place and install objects such as pipes and cable trays from the ground on the rack part formed by beams, compared with conventional work in high places where the work environment is poor. Can greatly improve work efficiency.

Further, since the ground work eliminates the need for scaffolding and safety nets required for work at high places, the material cost, work time for assembling them, and labor cost can be greatly reduced.

Furthermore, in the third outdoor rack assembling method of the present invention, the verticality of the column base is adjusted by the pressing means at the time of the assembled outdoor rack of unit length. It is possible to omit the troublesome correction work required at a large number of construction sites to be installed, and it can be expected to reduce the work time required for installation.

In a power plant, the outdoor rack may be several Km in some cases, and the above effect becomes enormous with such a very long rack. In addition to the above economic effects, it is an important effect to be able to protect human safety by ground work.

[Brief description of drawings]

FIG. 1 is a diagram showing blocks constituting an assembling apparatus and an outdoor rack embodying an outdoor rack assembling method according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is another side view of FIG. 1.

FIG. 4 is a partially enlarged view of a box used for assembling blocks.

FIG. 5 is a diagram showing an example of a block.

FIG. 6 is a diagram showing an example of an installation method of blocks of an outdoor rack.

FIG. 7 is a diagram illustrating a conventional outdoor rack assembly method.

FIG. 8 is a diagram illustrating a conventional block assembly method.

[Explanation of symbols]

 1 Box 1a Flange 2 Hydraulic Jack 3 Jack Receiver 4 Rack Pillar 5 Upper Rack 6 Lower Rack 7 Pillar Base Plate 8 Load 9 Adjustment Plate 10 Bolt Hole 11 Block 12 Joint 13 Rack Foundation 14 Moving Scaffold 15 Scaffold 16 Safety Net 17 Rack beam 18 Jack 19 Piano wire 20 Chain block

Claims (3)

[Claims] 1. A predetermined number of column pedestals are erected at predetermined intervals, the column pedestals are connected by a beam extending between the upper portions of the column pedestals, and piping, cable trays, etc. are mounted on a rack formed by the beams. In the outdoor rack assembling method in which an object is installed and an outdoor rack of a unit length is assembled, the predetermined number of column bases are inserted into a box with an upper opening embedded in the ground at a predetermined interval of the column bases, and the bottom of the box is inserted. An outdoor rack assembling method, characterized in that a core rod provided and a hole formed in the lower end of the column base are fitted to each other, and the column bar is erected so as to stand along the axis of the box and the upper part of the column base is located on the ground. .. 2. A predetermined number of column bases are erected at predetermined intervals, the column bases are connected by a beam extending between the upper parts of the column bases, and pipes, cable trays, etc. are mounted on a rack constituted by the beams. In an outdoor rack assembling method for installing an object and assembling an outdoor rack of unit length, the elevating means provided with the predetermined number of column bases on a bottom surface of a box with an upper opening buried in the ground at a predetermined interval of the column bases. The core rod provided on the upper part of the elevating means and the hole formed at the lower end of the column base are fitted together and stand up along the axis of the box, and the upper part of the column base is placed on the ground by the elevating means. A method for assembling an outdoor rack, characterized by arranging so as to position it. 3. A predetermined number of column bases are erected at predetermined intervals, the column bases are connected by a beam extending between the upper portions of the column bases, and pipes, cable trays, etc. are mounted on a rack constituted by the beams. In an outdoor rack assembling method for installing an object and assembling an outdoor rack of unit length, the elevating means provided with the predetermined number of column bases on a bottom surface of a box with an upper opening buried in the ground at a predetermined interval of the column bases. The core rod provided on the upper part of the elevating means and the hole formed at the lower end of the column base are fitted together and stand up along the axis of the box, and the upper part of the column base is placed on the ground by the elevating means. It is arranged so that it is positioned, the pillar base and the beam are coupled on the ground, the mounted object is installed on the ground, and then the side surface of the pillar base is pressed by the pressing means provided at the upper end of the box. And adjusting the verticality of the pedestal Rack assembly method.