KR20090083054A

KR20090083054A - An earth quake-proof reinforcement structure for new and replacement of an electric panel

Info

Publication number: KR20090083054A
Application number: KR1020080008993A
Authority: KR
Inventors: 이종림
Original assignee: (주)파워엔텍
Priority date: 2008-01-29
Filing date: 2008-01-29
Publication date: 2009-08-03

Abstract

The present invention relates to an earthquake-proof reinforcement structure that is installed to reinforce seismic performance in a power supply or communication panel, such as a distribution board or a relay panel. Particularly, when a new switchboard is newly installed in a new building or a switchboard is installed in an existing building, The present invention relates to a seismic reinforcing structure for the improvement of workability, such as dismantling, reassembly, and the establishment of a switchgear capable of securing sufficient seismic safety.

To this end, the present invention is fixed via the anchor bolt (9) in the building floor slab 100 and the upper horizontal and upper vertical frames (1,2) are fixed to the grid shape connected to the upper vertical pillar frame (3) In the seismic reinforcement structure for the new switchboard, which is provided with a support top plate 101 holding the switchboard 102 on the upper horizontal and upper vertical frames 1 and 2, the upper horizontal frame 1 and the vertical column frame. (3) are fastened to each other with a frame assembly bolt (4) at their meeting point, connected in an oblique direction via a horizontal frame bracing (5), the upper vertical frame (2) meets the vertical column frame (3) At the point, the frame assembly bolt (4) is fastened to each other and connected to the lower end of the vertical column frame (3) and diagonally through the lower vertical frame (6) and the vertical frame bracing (7) disposed on the building floor slab (100) Is connected to the effort is made to the structure.

Description

An earth quake-proof reinforcement structure for new and replacement of an electric panel

In general, switchboards installed in substation monitoring rooms and relay rooms are installed on the top floor in double-floor systems with top panels that are spaced apart from the building floor slabs, and various cables are arranged between the top floor and the floor slabs. Referring to FIG. 7, a double-floor system of a switchboard, which is connected to various protection relays of a switchboard and a relay room, that is, installed in a conventional non-seismic structure, has a height-adjusting vertical rod 104 on a building floor slab 100. ) Is fixedly spaced at an interval through an adhesive or fixing bolt, and the supporters 101 are installed on the vertical rods 104 and stringers 105 are installed in a rigid structure of the lattice, and the stringers are installed. ) Is composed of a double-floor system of a non-seismic structure in which a switchboard 102, a control panel, a monitoring panel, a protection panel, or a computer equipment is installed.

Here, expensive equipment is installed on the upper part of the conventional double-floor system having the non-seismic structure as described above, so that the damage caused by the earthquake is not only a loss of expensive equipment but also an enormous earthquake-induced damage caused by power loss or communication loss. Cause And when the double bottom system is collapsed, it will take a lot of time to re-install the power supply, cooling system, and signal cables as well as simply re-install the double bottom system.

In addition, deformation of the vertical support rod, distortion of the bottom top plate, axial misalignment of the bottom through-holes, variation of the entire bottom surface, and many potential losses such as tilting or inversion of the switchboard supported on the bottom surface are caused.

Switchboards, control panels, monitoring panels, protective panels, or computer equipment installed on a double-floor system of a general non-earthquake resistant structure are vulnerable to earthquake-induced damage because the vertical support rods are inclined during an earthquake. It is not completely settled on the floor and there is no horizontal stiffness in the axial direction between the vertical holding rods.

In order to avoid earthquake-induced damage, the bottom plate of the vertical support rod should be drilled and anchor bolts should be installed to fix the double bottom properly. However, a typical non-seismic double bottom system is a method of adhesive bonding to the bottom of a layer that is loaded with vertical struts. It has been found that the method of using such a vertical support rod cannot sufficiently withstand the axial force.

It was found that the welded area of the bottom plate of the resin support rod and the vertical support rod, which was not reinforced by bracing, was very fragile and could not bear the required shaft load.

In addition, in many cases, since the transformer of the upper part of the double bottom system is not fixed, proper measures to prevent the device from moving during an earthquake are necessary.

If there are many penetrations in the double bottom system, the switchboard on the top of the double bottom system will roll, slant or jam. This will not only result in intensive excessive celebrations on the double-floor system, but will also cause the top plate to be crushed, causing local destruction.

In addition, in the non-seismic structure of the double-floor system in which the conventional switchboard is installed, due to the steel beams arranged up and down in parallel with the switchboard, the wire cable connection space of the switchboard or the relay is insufficient and it is difficult to work due to the lack of space in the cable connection work. In addition, the existing stringer frame is mostly welded steel structure, and once the assembly installation is completed, the switchboard has a disadvantage in that it is difficult to move or replace the switchboard.

Therefore, the present invention was invented to solve the conventional problems as described above, by installing a bracing in the form of a truss on the horizontal frame (Bracing) to induce stress distribution during the lateral force caused by the earthquake, even without a separate reinforcing member across the bottom Structural dynamic stabilization structure and space for installation of control cable are made easy to connect the control cable and all the members are fastened with bolts. The purpose is to provide a seismic reinforcement structure for the construction of new switchboards with easy and efficient workability.

The present invention for achieving the above object is the upper horizontal and upper vertical frames are arranged in a grid shape on top of the vertical column frames fixed via the anchor bolt in the building floor slab and the switchboard on the upper horizontal and upper vertical frame In the seismic reinforcement structure for the new switchboard, which is provided with a support top plate for holding the upper and lower plates, the upper horizontal frame and the vertical column frames are fastened to each other by frame assembly bolts at their meeting points, and then, through horizontal frame bracing. It is connected in an oblique direction, and the upper vertical frame is connected to the bottom of the vertical pillar frame by being fastened to the frame assembly bolts at the point where it meets the vertical pillar frame and connected to the lower vertical frame and the vertical frame bracing disposed on the building floor slab. Connected diagonally It has a built structure.

Seismic reinforcement structure for the new switchboard according to the present invention as described above, when installing the new switchboard in the building to install the bracing in the form of truss (Truss) in the horizontal frame to induce the stress distribution when the lateral force generated by the earthquake It is possible to do the control cable installation easily by securing the space for control cable installation by making it structurally and stabilizing without the member crossing the lower part, and also the connection period of all members by bolts. This feature can be shortened, and it is easy to dismantle or reassemble during later position change or movement.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a seismic reinforcement structure for the new switchboard according to the present invention, Figure 2 is a cross-sectional view (A) direction of FIG.

The present invention is fixed to the anchor bolt (9) in the building floor slab 100 as shown in the figure and the upper horizontal and upper vertical frames (1, 2) on the vertical column frame (3) in a grid shape In the seismic reinforcement structure for the new switchgear structure, which is connected and fixed, and a support top plate 101 is installed on the upper horizontal and upper vertical frames 1 and 2 to hold the switchboard 102. And the vertical pillar frames 3 are connected to each other in a diagonal direction through the horizontal frame bracing 5 while being fastened to each other with frame assembly bolts 4 at their meeting points, and the upper vertical frame 2 is a vertical pillar frame ( 3, the lower vertical frame (6) and the vertical frame bracing (7) connected to the bottom of the vertical column frame (3) and disposed on the building floor slab (100) while being fastened to each other with frame assembly bolts (4) at the point where they meet. Is connected to the medium in an oblique direction is composed of a structure.

Here, the upper horizontal frame 1, the upper vertical frame 2, the vertical column frame 3 and the lower vertical frame 6 to which the horizontal frame bracing 5 and the vertical frame bracing 7 are connected and fixed, respectively, It is connected and fixed to each other using the bracing assembly bolt (8).

The upper horizontal and vertical frames (1, 2), the vertical column frame (3) and the lower vertical frame (6) are formed in L-shaped cross section, the horizontal frame bracing (5) and vertical frame bracing (7) Is formed of L-shaped steel whose cross section is small.

On the other hand, the present invention describes the seismic reinforcement structure of the double-floor system to install the switchboard 102 is newly established as an example, but in addition to the switchboard, communication and control lines, computer equipment, etc. of the relay panel, control panel, monitoring panel, situation room or control room Naturally, it can be applied to both equipment and equipment.

Next, application examples of the present invention will be described.

First, the size of the upper horizontal frame 1 and the upper vertical frame 2 and the size of the lower vertical frame 6 are determined according to the size of the new switchboard 101 which is newly established. The vertical column frames 3 and the frame assembly bolts 4 are pre-assembled and transported to the site, and then the upper and lower horizontal and vertical frames 1 and 2 are installed using the remaining frame assembly bolts 4. And vertical column frames (3), the vertical frame bracing (7) is arranged diagonally connected between the upper vertical frame (2) and the lower vertical frame (6) and using the anchor bolt (9) Fix it to the building floor slab (100).

The structure secured in this way is connected to the horizontal frame bracing (5) using the bracing assembly bolt (8) in the oblique direction between the upper horizontal frame (1) and the vertical column frame (5), this horizontal frame bracing (5) Since the separation occurs due to the height difference between the upper horizontal frame (1) and the vertical column frame (3) when assembling the gap washer 10 is fitted tightly fixed (see Figure 5).

The position of the upper end of the horizontal frame bracing (5) and the position of the frame assembly bolt (4) of the upper horizontal frame (1) should be located at the lower end of the thickness of the support upper plate 101 made of a conventional non-seismic structure. When assembling the assembly can be arranged so that no gap occurs.

Finally, a switchboard newly formed by connecting the bolt holes formed in the upper horizontal frame 1 and the upper vertical frame 2 and the holes of the bottom support plate 102a of the switchboard 102 and fastening with the connecting bolts 11 ( The installation of 102 is completed.

Figure 1 is a cross-sectional configuration showing a seismic reinforcement structure for the new switchboard in the present invention,

Figure 2 is a cross-sectional view of the A direction of Figure 1,

3 is a partially enlarged cross-sectional configuration of FIG.

4 is a partially enlarged cross-sectional configuration of FIG.

5 is a cross-sectional view taken along line II of FIG. 4;

6 is a plan view of the upper horizontal and vertical frame structure in the seismic reinforcement structure according to the present invention, (b) is a plan view of the lower vertical frame structure,

7 is a configuration diagram of a double bottom system showing a non-seismic structure installed in a conventional switchboard.

Explanation of symbols on the main parts of the drawing

1: upper horizontal frame, 2: upper vertical frame,

3: vertical post frame, 4: frame assembly bolt,

5: horizontal frame bracing, 6: lower vertical frame,

7: vertical frame bracing, 8: bracing bolts,

9: anchor bolt, 10: spacing washer,

11: Connecting bolt.

Claims

In the building slab 100, the anchor bolt 9 is fixed as a medium, and the upper horizontal and upper vertical frames 1 and 2 are connected to the grid by fixing the upper vertical and vertical frames 3, In the seismic reinforcement structure for the new switchgear structure, which is provided with a support top plate 101 for holding the switchboard 102 on the frame (1, 2),

The upper horizontal frame 1 and the vertical column frame 3 are connected to each other in a diagonal direction through the horizontal frame bracing 5 while being fastened to each other with frame assembly bolts 4 at their meeting points, and the upper vertical frame ( 2) is connected to the bottom of the vertical pillar frame (3) and fastened to the frame assembly bolt (4) at the point where it meets the vertical pillar frame (3) the lower vertical frame (6) disposed on the building floor slab (100) Seismic reinforcement structure for the new switchgear, characterized in that made in a diagonal direction connected via a vertical frame bracing (7).

The method of claim 1,

The upper horizontal and vertical frames (1, 2), the vertical column frame (3) and the lower vertical frame (6) are formed in L-section cross section, the horizontal frame bracing (5) and vertical frame bracing (7) Seismic reinforcing structure for the new switchgear, characterized in that the cross section is formed of a small L-shaped steel.