JPH03265800A - Method of installing equipment - Google Patents

Abstract

PURPOSE:To simplify installation and improve reliability by constituting the process out of a first process of forming a framework, a second process of forming a spiral pipe assembly, a third process of fixing the spiral pipe assembly with concrete, a fourth process of fixing it with mortar, and a fifth process of fixing equipment. CONSTITUTION:An angle member 15 is cut according to a base dimension of equipment 3, and end faces are combined and welded to form a framework 17. Next, spiral pipes 2 are screwed in the female holes 19 provided at four corners of the framework 17 so as to form a spiral pipe assembly 21. Furthermore, the spiral pipe 2 and the spiral pipe assembly 21 are firmly fixed to the floor 1 through spot welding 9 and stud bolts 16. And a packer plate 10 is inserted into the spiral pipe 2, whereby an anchor bolt is erected at the position of the bolt hole for equipment installation, and after adjustment of each position, mortar 12 is poured into the spiral pipe 2, and it is cured. If mortar hardens and required strength is obtained, the equipment 3 is fixed on the floor 1, whereby the installation is completed. The work can be simplified by forming female holes 19 in the framework 17 in the factory prior to installing the equipment 3 on the floor 1 and installing it as the spiral pipe assembly 21 before arrangement of reinforcing rods in the floor.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a method for installing equipment such as large and heavy objects.

(Prior Art) A conventional method for installing large equipment or heavy equipment on the floor will be described with reference to FIGS. 5 to 8. Fifth
In the figure, ribbed polymeric spiral tubes (hereinafter referred to as spiral tubes) 2 are arranged on the floor 1 as the bolts of the device 3 in the required number of bolt holes of the device 3, and the device 3 is connected to the spiral tube 2. installed at the top. The spiral tube 2 is, for example, a galvanized iron plate rolled into a cylindrical body, a continuous spiral protrusion is formed on the side surface of the cylindrical body, and a rib (flange) is attached to the upper end. As the device 3, the same device or a plurality of similar devices are installed. In FIG. 6, floor upright reinforcements 5 stand up on the sacrificial concrete 4, and horizontal floor reinforcements 6 and vertical floor reinforcements 7 are arranged at regular intervals in a grid pattern. The helical pipe 2 is installed in the space closest to the foundation installation position of the equipment 3, the reinforcing bars 8 are boiled and welded 9 to the side of the helical pipe 2, and the reinforcing bars 8 and floor transverse bars 6 are welded together.
And the contact point with the floor vertical reinforcement 7 is also boiled and welded 9. As shown in FIG. 7, depending on the installation position of the equipment foundation, the spiral pipe 2 may be welded directly to the horizontal floor reinforcements 6 or vertical floor reinforcements 7, or may be welded directly to the floor horizontal reinforcements 6 or vertical floor reinforcements 7 using a plurality of reinforcing reinforcements 8. It may be installed in a space where the lines 7 intersect in a grid pattern.

Next, with reference to FIG. 8, the procedure up to installing the equipment 3 on the floor 1 will be explained.

Before placing the sacrificial concrete 4, the floor chamber raising reinforcements 5 are arranged at regular intervals, and after the sacrificial concrete 4 is placed and the required strength is obtained, the equipment 3 is installed after roughly centering the position. ,
Avoiding the arrangement position of the spiral pipe 2, the horizontal floor reinforcements 6 and the vertical floor reinforcements 7 are arranged in multiple stages at regular intervals in a lattice shape using the floor room raising reinforcements 5.

Next, a large number of helical tubes 2 are discarded in advance and the equipment is temporarily placed at a position centered on the concrete 4. Incidentally, since the top of the concrete concrete 4 is not flat, it is necessary to chisel the surface or the like to obtain the height and horizontal accuracy. Temporarily placed spiral tube 2
After boiling and welding 9 the reinforcing bars 8 to the sides of the frame, install the reinforcing bars 8, floor horizontal bars 6 and floor vertical bars 7 while ensuring the position and level.
The contact points are also boiled and welded 9 to complete the installation. This operation is repeated as many times as necessary (number of devices x basic number) for each spiral tube 2. Thereafter, a formwork 18 is installed on the waste concrete 4, and when concrete is poured and the required strength is obtained, the formwork 18 is removed and the installation floor is completed.

After the floor 1 is completed, the equipment 3 is installed using the packer plays 1 to 10 by inserting the anchor bolts 11 into the helical tube 2 at the bolt holes 13, adjusting each position, and then spiraling the mortar 12. Inject into tube 2 and cure. Once the required strength is obtained, pass the tip of the anchor bolt 11 through the bolt hole 13 of the device 3, and tighten with the nut 14.
The installation of equipment 3 is completed by tightening while finely adjusting the level.

(Problems to be Solved by the Invention) The installation method of the device 3 using the spiral tube 3-2 used for the bolt holes of conventional devices has the following problems. In other words, in such a method, the spiral pipe 2 is
If a large number of devices 3 are installed, the work period becomes long and the number of work steps increases. In addition, we carried out work such as chipping the surface of the waste concrete 4, and
Since the installation level of the floor 1 is certain, the timing of concrete pouring for floor 1 will be extremely delayed, which will be a critical issue in the construction work. Since the spiral pipe 2 is installed as a single item, the anchor bolts are installed at different positions due to the influence of buoyancy and vibration when concrete is poured into the floor. Therefore, if the standing position of the anchor bolt 11 is extremely biased, the pull-out strength of the anchor bolt 11 will be reduced and the reliability will be impaired.

The present invention has been made to solve the above-mentioned problems.4- Therefore, the present invention aims to improve reliability by simplifying the installation work of the spiral pipe, simplifying level adjustment, shortening the construction period and man-hours, and preventing misalignment. The purpose of the installation of equipment that can be provided is to provide a method.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides a first step of forming a framework body of a size commensurate with the foundation board of equipment to be installed on the floor; A second step of forming a helical tube assembly structure by forming a female threaded hole at a position that matches a bolt hole previously provided in the hole and screwing a spiral tube into this female threaded hole, and forming a helical tube assembly structure of this second step. After it is installed and positioned on the concrete that forms part of the floor, it is temporarily fixed to the floor spine erected on the concrete, and poured into concrete 1 to form the helical tube assembly structure in concrete. A third step of fixing, a fourth step of inserting an anchor bolt into the spiral tube fixed in this third step and fixing it with mortar, and inserting a bolt hole of the device into the anchor bolt fixed in this fourth step. The device is characterized by comprising a fifth step of fixing the device by screwing a nut into the anchor bolt after insertion.

(Function) A helical tube is screwed into the female threaded hole of the framework and installed upright. The stud bolts adjust the level of equipment settings in the height direction, and the center point mark and scratch line align the equipment settings. The spiral tube assembly structure is installed on concrete, and the foundation board of the equipment is placed on top of the spiral tube. The threaded portion of the anchor bolt inserted into the helical tube passes through a bolt hole previously provided in the base plate of the device and is loosely tightened with a nut to temporarily secure it. At this time, the level is adjusted using stud bolts, and alignment is performed using the center point mark and the cut line.

Mortar is injected into the spiral tube and the anchor bolt is fixed with mortar. The sides of the spiral tube are temporarily welded to the floor spine. The formwork is assembled and concrete is poured, and the floor spine and spiral pipe are fixed. Once the concrete has hardened, the formwork is removed and the equipment is installed on the floor by tightening loosely tightened nuts on the anchor bolts.

(Embodiment) An embodiment of the method for installing equipment according to the present invention will be described with reference to FIGS. 1 to 4.

FIG. 1 shows a first step in which a framework 17 is formed using angle members 15 such as shaped steel to match the dimensions of the foundation board of the equipment 3 to be installed on the floor 1. That is, after cutting the angle material 15 to match the basic dimensions of the device 3, and combining and welding the end faces to form the framework 17, the device 3 is installed at the position, and the stud bolts 16 are installed at the position and the angle material 15. The inclination of the spiral tube 2, the installation of the spiral tube 2 is confirmed by inspecting the surface, horizontal height, etc. A stud bolt 16 for horizontal positioning is attached to the bottom of the angle member 15. Further, in order to confirm the center point of the device 3, a center point mark C is marked on the surface of the angle member 15 with a punch, and marking lines are drawn in the horizontal and vertical directions. Further, through holes 20 are provided at the four corners of the angle member 15, and the corners of the frame body 17 are
As shown in the enlarged view, the through hole 207 is threaded with a spiral thread to form a female threaded hole I9. This female threaded hole 19 is used for mounting the spiral tube 2, and has a pitch interval sufficient for screwing a spiral protrusion into the outer surface of the threaded spiral tube 2 as a male thread.

As shown in FIG. 3, the helical tube 2 is screwed into the female screw holes 19 provided at the four corners of the framework 17 to form the helical tube assembly structure 21.
form. A mortar injection hole 22 is provided at the bottom of the spiral tube 2 for venting air and for pouring concrete and mortar 12 for the floor 1.

The procedure up to forming the spiral tube assembly structure 21 is referred to as a second step.

As shown in FIG. 4, the spiral tube assembly structure 21 formed in this second step was installed and positioned on the sacrificial concrete 4 constituting a part of the floor 1, and then the sacrificial concrete 4 was erected. The helical tube assembly structure 21 is fixed to the concrete 1 by temporarily fixing it to the reinforcement and pouring concrete. The procedure up to fixing this spiral tube assembly structure 21 with concrete is called the third process 8-.

In addition, in the third step, floor standing reinforcements 5 are placed at regular intervals before pouring the concrete 4, and once the required strength is obtained, the installation of the equipment 3 is done by accurately centering the position. and mark marks etc. on the discarded concrete 4.

Thereafter, the spiral tube assembly structure 21 is temporarily placed on the concrete 4 at a centered position, and adjusted so that the edge line on the surface of the framework body 17 exactly matches the centered position. Furthermore, horizontal positioning is performed using stud poles 1 to 16, and after manually rotating the spiral tube 2 and adjusting it to a required level, the spiral tube 2 is boiled and welded to the frame assembly 17. After that, the nearby floor raising bars 5 and the spiral tube assembly structure 2
1 is secured with tie wires 24 so that it does not shift during floor reinforcement work. This work is performed for the number of devices 3.

Next, use the floor raising muscle 5 to move I41. Whirlpool assembly structure 2
The horizontal floor reinforcements 6 and the vertical floor reinforcements 7 are arranged in multiple stages at regular intervals in a lattice shape so as not to interfere with the spiral pipe 1 and the spiral pipe 3.

This is done by placing reinforcement so that it contacts the spiral pipe 2 and melting it in spots, and once the concrete for floor 1 is poured and the necessary strength is obtained, the formwork 18 is removed and floor 1 is completed. do. As a result, the spiral tube assembly structure 21 and the spiral tube 2 are directly welded 9
and the stud bolts 16 are firmly fixed to the floor 1. After that, move on to the fourth step.

In the fourth step, the packer plate 10 is inserted into the helical tube 2, and the anchor bolts 11 are erected at the positions of the bolt holes 13 for installing the equipment. After adjusting each position, mortar 12 is inserted into the helical tube 2. Inject it inside and cure it. In this case, since the mortar 12 is also injected into the sacrificial concrete 4 from the mortar injection hole 22, no space is left. Next, in the fifth step, once the mortar 12 has hardened and the necessary strength has been obtained, the tip of the anchor bolt 11 is passed through the bolt hole 13 of the device 3, and tightening is performed while adjusting the level of the device 3. The nuts 14 are tightened to fix the equipment 3 to the floor 1, completing the installation.

According to this embodiment, before the equipment 3 is installed on the floor 1, the female threaded hole 19 is formed in the frame body 17 at the factory, and the female threaded hole 1
By screwing the helical tube 2 into the helical tube 9 and installing it as the helical tube assembly structure 21 before floor reinforcement, the work is simplified and the number of man-hours is reduced.

Further, since the level can be adjusted using the stud bolts 16, the work of chiseling the waste concrete 4 can be eliminated, and the level can be easily adjusted.

Furthermore, misalignment is reduced, and even if misalignment occurs, there is regularity in units of three devices, and one anchor bolt
1 can be installed under the same conditions and conditions, improving reliability.

〔Effect of the invention〕

According to the present invention, reliability can be improved by simplifying the installation work of the spiral pipe, simplifying the level adjustment, shortening the construction period and man-hours, and preventing positional shift.

[Brief explanation of drawings]

1 to 4 are for explaining one embodiment of the method for installing equipment according to the present invention, FIG. 1 is a perspective view showing a framework, and FIG. - Figure 3 is a perspective view showing the helical tube assembly structure; Figure 4 is a state in which equipment is temporarily placed in the helical tube assembly structure and mortar is injected into the spiral tube. Figures 5 to 8 are for explaining the conventional example, Figure 5 is a plan view showing an example of equipment arranged on the floor, and Figure 6 is a vertical cross-sectional view showing a partial side view of the A perspective view showing a state in which the spiral tube is temporarily fixed, FIG. 7 is a top view as well, and FIG. 8 is a longitudinal cross-section partially showing a side view of a state in which equipment is temporarily placed on the spiral tube and mortar is injected into the spiral tube. It is a diagram. 1...floor, 2...spiral tube, 3...
Equipment, 4... Discarded concrete, 5.
... Floor room raising reinforcement, 6... Floor horizontal reinforcement, 7... Floor assembly reinforcement, 8... Reinforcement bar, 9.23... Direct welding, 10... Baraka plate. 11... Anchor bolt, 12... Mortar, 1
3... Bolt hole, 14... Tighten with nut, 15... Angle material, 16... Stud bolt,
17...Framework, 18...Formwork, 19.
...Female screw hole, 20...Through hole, 12-21...Spiral tube assembly structure, 22...Mortar injection hole.

Claims (1)

[Claims] A first step of forming a framework body of a size commensurate with the foundation board of the equipment to be installed on the floor, and placing the framework body in this first step in a position that matches the bolt holes previously provided in the foundation board of the equipment. A second step of forming a female threaded hole and screwing a spiral tube into the female threaded hole to form a spiral tube assembly structure, and placing the spiral tube assembly structure of this second step on the concrete that constitutes a part of the floor. After installation and positioning, a third step is to temporarily fix the sacrificial concrete to the erected floor reinforcements, pour concrete, and fix the spiral pipe assembly structure with concrete, and fix it in this third step. The fourth step is to insert an anchor bolt into the spiral pipe and fix it with mortar.
and a fifth step of inserting the bolt hole of the device into the anchor bolt fixed in the fourth step, and then screwing a nut into the anchor bolt to fix the device. Installation method.