JPH04269216A - Installation engineering method of buried metallic material for installing equipment - Google Patents

Abstract

PURPOSE:To provide an installation engineering method of buried metallic material buried in an installation frame of a turbine and generator in a thermal atomic power plant or the like, which can reduce the works time by performing works of setting buried metallic materials concurrently and separately from formwork works and reinforcement arrangement works and improve working conditions and accomplish labor saving by making assembling works on the ground in a safe place. CONSTITUTION:Buried metallic materials for installing equipment such as a foundation bolt 2, an embedded plate 3, an oil pipe sleeve 4, an anchor block 5 and the like are temporarily set and installed in a beam brace prefabrication 1 which is assembled in a complete prefabrication like a box in an on-ground installation yard outside in a power plant. Subsequently, the beam brake prefabrication 1 is carried to a normal installation place from the off premise yard by a large crane, and installed on a beam side framework prepared by advance works separately. The metallic material are regularly set using a map template.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing buried metal fittings to be buried in installation frames for turbines, generators, etc.

0002

[Prior art] Turbines and nuclear power plants in thermal and nuclear power plants
On the generator installation frame (hereinafter referred to as T/G frame), a large number of various kinds of buried hardware such as foundation bolts, embedded plates, electric conduit pipes, oil pipe sleeves, and anchor blocks are installed. Conventionally, the installation of buried hardware for installing these devices was done using a template (
The construction of the foundation bolts and other buried hardware was carried out using a template (framework), and finally concrete was poured to complete the T/G mount construction.

[0003] As described above, each T/G frame work is carried out in series, so the current construction method is that it is not possible to move on to the next work until the previous work is completed.

0004

However, the conventional buried hardware setting work as described above has the following drawbacks. (1) Since the construction work is carried out in series in the order of the steps, delays in work in the previous steps are reflected in the subsequent steps, making the subsequent construction difficult. Furthermore, with the method of progressing construction by following the steps in the process, shortening the process cannot be expected unless there is a significant need. (2) Installation work for buried hardware must be done at heights with poor working conditions, and buried hardware that is installed through beam reinforcements (
If there is an oil pipe sleeve, etc.), the working conditions will be even worse as it will involve up and down work to set the upper and lower surfaces of the beam reinforcement.

[0005] The present invention provides a new method for installing buried hardware for equipment installation, which eliminates the above-mentioned conventional drawbacks by performing buried hardware setting work independently and in parallel with formwork work and reinforcement work. The purpose is to

[0006]

[Means for Solving the Problems] Therefore, the method for installing buried hardware for equipment installation of the present invention is to assemble the beam reinforcements in a box-like completely prefabricated or semi-prefabricated box shape in advance in an off-site construction yard, and then use the box-shaped beam reinforcements Embedded hardware such as foundation bolts, embedded plates, electrical conduit pipes, oil pipe sleeves, and anchor blocks are temporarily set and installed in advance. The buried hardware temporarily installed on this prefabricated beam reinforcement is restrained using temporary materials such as L-shaped steel and U-shaped steel, and then transported all at once to the designated official installation site and installed. It is characterized by the fact that the hardware is properly set and installed.

[0007]

[Operation] According to the above-mentioned installation method of the present invention, the buried hardware for equipment installation is temporarily set and the integrated beam prefabricated is constructed, so that the buried hardware setting work is different from formwork work and reinforcement work. It can be done separately and in parallel. Moreover, the assembly work is ground assembly work under favorable conditions.

[0008] The beam reinforcement prefabricated with the buried metal fittings temporarily set and integrated is carried all at once to a predetermined installation location using a large lifting machine. The buried hardware temporarily installed on the prefabricated beam reinforcements was secured with temporary L-shaped steel and U-shaped steel to ensure safety during delivery.

[0009] After the prefabricated beams are carried in, they are installed in their proper positions, and then the temporarily set buried hardware is permanently set and installed using a template.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS A method according to an embodiment of the present invention will be explained below with reference to the drawings. FIG. 1 is a perspective view of a beam prefab, FIG. 2 is a perspective view showing the installed state of the beam prefab, and FIG. 3 is a diagram showing an oil pipe sleeve attached to the beam prefab.

In FIG. 1, foundation bolts 2, embedded plates 3, oil pipe sleeves 4, Temporarily set and install buried hardware such as anchor block 5.

Next, the beam prefabricated beams were transported from the off-site construction yard to the official installation site using a large lifting machine, and after being installed on the beam side formwork 6 shown in FIG. 2, they were buried using a template (not shown). The final settings for hardware are made.

FIG. 3 shows a state in which the oil pipe sleeve 4 temporarily set and attached to the prefabricated beam reinforcement 1 is restrained by temporary materials such as L-shaped steel 7 and U-shaped steel 8. installed for.

[0014]

[Effects of the Invention] As described above, according to the method of installing buried hardware for equipment installation of the present invention, the following effects can be obtained. (1) Separately and concurrently with the preliminary work such as form work and reinforcement work, the installation work for buried hardware can be carried out independently, and assembly can be carried out during ground assembly work under favorable conditions, which greatly improves work efficiency. The construction period for T-frame construction can be shortened. (2) The underground hardware setting work is done above ground, eliminating the dangers associated with conventional work at heights. At the same time, the work conditions are improved because there is no need to perform vertical work to set the upper and lower surfaces of the beam bars. (3) Since it can be delivered together with the prefabricated beam reinforcement, on-site work is labor-saving.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a beam prefab according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the beam reinforcement prefabricated in a beam-side formwork.

FIG. 3 is a perspective view showing a state in which an oil pipe sleeve is attached to the prefabricated beam reinforcement.

[Explanation of symbols]

1 Beam reinforcement prefab 2 Foundation bolts 3 Embedded board 4 Oil pipe sleeve 5 Anchor block 6 Beam side formwork 7 L-shaped steel 8　　　　U-shaped steel

Claims (1)

[Claims] [Claim 1] Beam reinforcements are assembled in advance into a box-shaped completely prefabricated or semi-prefabricated box shape at an off-site construction yard, and buried hardware such as foundation bolts, embedded board electrical conduit pipes, oil pipe sleeves, anchor blocks, etc. are placed in the box-shaped prefabricated beam reinforcements. After temporarily setting and installing the items in advance and securing them to the prefabricated beam reinforcements using temporary materials such as L-beams and U-beams, carry them to the official installation site and install them, the buried hardware will be permanently set and installed. An installation method for buried hardware for equipment installation, characterized by: