JPS624314B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for connecting an earthquake-resistant panel assembly type water tank to a pedestal.

[Conventional technology]

When an earthquake force acts on a panel-assembled aquarium, a horizontal force acts on the aquarium. In order to prevent the aquarium from moving out of its normal position or falling over due to this horizontal force, the mounting bracket 4, which has an L-shaped cross section, is attached to the mount using the mount fixing bolts 5, as shown in FIGS. 7 to 9. 2, and further fixing the vertical joining edge 8 of the mounting bracket 4 and the bottom wall with bottom wall fixing bolts 6 is widely used.

For example, when an earthquake force acts on an aquarium that is narrow in width and high in height as shown in Figure 7, the overturning moment becomes extremely large because the height of the center of action of the horizontal force is high. At the same time, a force that causes the pedestal 2 and the bottom wall of the water tank 1 to be separated by a horizontal force, ie, a vertical force, is applied to the fixed portion of the pedestal 2. Of these two forces, focusing on the vertical force and considering the stress generated around the bottom wall fixing bolt 6 according to Fig. 9, shear stress is generated in the bottom wall fixing bolt 6 due to the vertical force, On the other hand, surface pressure is generated in the portion of the bolt through hole 14 in the bottom wall of the water tank that is in contact with the bottom wall fixing bolt 6. At this time, for example, if the aquarium is made of synthetic resin, the permissible surface pressure of the synthetic resin is generally lower than that of bolts, so if a large vertical force is applied due to an earthquake, etc., the synthetic resin aquarium bottom wall will be damaged. The provided bolt through hole 14 may be damaged and the water tank may fall over.

Conventionally, in order to prevent such falls, the number of bottom wall fixing bolts 6 is increased or the thickness of the vertical joint edge 8 of the bottom wall of the aquarium is increased to prevent vertical forces from occurring in the bolt through holes 14. It was reducing surface pressure.

[Problems to be Solved by the Invention] However, in the method of increasing the number of bottom wall fixing bolts 6, it is necessary to provide a large number of bolt through holes 14 in the bottom wall of the aquarium, and the cross section of the bolt through holes 14 is damaged. There was a problem in that the strength of the vertical joint edge 8 was reduced.

However, the method of increasing the thickness of the vertical joint edge has the drawbacks of increased weight and cost.

The present invention was made in view of these drawbacks, and an object of the present invention is to improve the seismic performance of an aquarium by improving the method of connecting a narrow, high aquarium to a pedestal.

[Means for solving problems]

The structure of the present invention aimed at achieving the above object will be explained using FIGS. 1 to 6 corresponding to the embodiments.
A plurality of unit panels 17 each having an inclined joining edge 18 forming an angle of 135° and vertical joining edges 7 and 8 forming an angle of 90° with the pressure receiving surface at the tip of the edge 18 are provided. In a panel assembly type aquarium 1 in which the vertical joint edge 8 of the assembled bottom wall is placed on a pedestal 2 so as to be located on the outside, the pedestal 2 at the lower end of the outer peripheral wall of the aquarium 1 and the bottom perpendicular to the pedestal 2 A mounting bracket 4 having an L-shaped cross section is brought into contact with the outside of the vertical joint edge 8 of the wall, and the vertical joint edge 8 and the installation bracket 4 are fastened with bolts and nuts 6, and the lower end of the side wall parallel to the mount 2 and the mount 2 are connected. A technical measure is taken in which the vertical joint edges 7 of the parts are fastened with bolts and nuts via the installation fittings 4.

〔Example〕

Embodiments of the present invention will be described based on FIGS. 1 to 6. FIG. 1 is an overall perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged view of section B in FIG. 1, FIG. 3 is a partial sectional view showing an embodiment of the present invention, and FIGS. 4 to 6 FIG. 3 is a partial cross-sectional view showing another embodiment of the present invention.

17 has an inclined joint edge 18 on the periphery of the rectangular pressure receiving surface making an angle of 135° with the pressure receiving surface, and further has a vertical joining edge 7 with its tip facing inward making an angle of 90° with the pressure receiving surface.
It is a unit panel made of synthetic resin such as FRP. 1 is a panel assembly type aquarium constructed by assembling a plurality of unit panels at least on the side walls and the bottom wall with the vertical joint edges 7 or 8 facing outward through bolts and nuts via gaskets (not shown); The corner between the lower end of the side wall and the periphery of the bottom wall and the corner between the side walls are inclined joint edges 18, 18, and the flat parts of the side wall and the bottom wall are vertical joint edges 7,
7 or 8, 8 comrades are fastened together with bolts and nuts.

Reference numeral 2 denotes a frame that is fixed on the foundation 3 and is made up of H-shaped steel for fixing the panel assembly type water tank 1. As shown in FIG. 3, the lower end of the outer periphery of the panel assembly type aquarium 1 is connected to the inclined edge 18 of the bottom wall and the inclined edge 18 of the side wall through a packing (not shown). The vertical joint edge 8 of the frame 2
It is placed perpendicular to the

Reference numeral 4 denotes an installation fitting having an L-shaped cross section and having an appropriate length, which is in contact with the outside of the vertical joint edge 8 on the outer periphery of the bottom wall perpendicular to the pedestal 2 and along the pedestal 2;
One upright side is fastened to the vertical joint edge 8 of the bottom wall by the bottom wall fixing bolt 6, and one horizontal side of the mounting bracket 4 is connected to the vertical joint edge 7 of the lower end of the side wall parallel to the frame 2. It is fastened with a long communicating fixing bolt 9 and a nut 13. In the present invention, as shown in FIG. 3, two nuts 13 are used for the communicating fixing bolt 9 when fastening the pedestal 2, the mounting bracket 4, and the vertical joint edge 7 at the lower end of the side wall. By using three pieces as shown in FIG. 5, it can be firmly fixed.

FIG. 4 has two planes along an inclined joint edge that makes an angle of 135° with the pressure receiving surface of the unit panel 17 and a vertical joint edge that makes an angle of 90° with the pressure receiving surface, and each plane has at least one bolt through hole. One side of the provided steel bending plate 10 is connected to the inclined line 18 of the bottom wall of the aquarium and the inclined edge 18 of the side wall of the aquarium.
This is an example in which one side is inserted and fastened to a fixing bolt 15 and the other side is fixed to a communicating fixing bolt 9.

FIG. 6 shows one side of a steel bending plate 11 having two L-shaped planes that are angled at 90 degrees from each other and each plane having at least one bolt through hole. In this example, they are fastened at the same time, and the other side is fastened with a communicating fixing bolt 9 along the back surface of the vertical joint edge 7 at the lower end of the side wall.

Incidentally, if the steel bending plate 11 shown in FIG. 4 is used in conjunction with the fixing method shown in FIG. 6, the seismic performance of the panel assembly type aquarium will be further improved.

〔effect〕

The present invention directly connects the vertical joint edge 7 on the lower surface of the peripheral side wall and the pedestal 2 using the communicating fixing bolts 9, so that most of the vertical force due to the overturning moment is directly transmitted without going through the bottom wall fixing bolts 6. I was able to transmit it to the pedestal. As a result, damage to the bolt through holes 14 in the bottom wall of the water tank can be eliminated, making it possible to manufacture a water tank with a high level of earthquake resistance. Since there is no need for an increase in the amount of , etc., it can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged view of section B in FIG. 1, FIG. 3 is a partial sectional view showing an embodiment of the present invention, and FIGS. 4 to 6 7 is a partial sectional view showing another embodiment of the present invention, FIG. 7 is an overall perspective view showing a conventional embodiment, and FIG. 8 is B of FIG. 7.
FIG. 9 is a partial cross-sectional view showing a conventional embodiment. Explanation of symbols, 1...Panel assembly type aquarium, 2...
Frame, 3... Foundation, 4... Installation bracket, 5... Frame fixing bolt, 6... Bottom wall fixing bolt, 7... Vertical joint edge, 8... Vertical joint edge, 9... Communication fixing bolt, 10 ...Steel bending plate, 11...Steel bending plate,
13...Nut, 14...Bottom wall bolt through hole, 1
5... Fixing bolt, 16... Bolt through hole, 1
7...unit body panel, 18...slanted joint edge.

Claims (1)

[Claims] 1 A plurality of unit panels each having a rectangular pressure-receiving surface with an inclined joint edge forming an angle of 135° with the pressure-receiving surface on the periphery, and a vertical joining edge forming a 90° angle with the pressure-receiving surface at the tip of the edge. In a panel-assembled aquarium in which the vertical joint edge of the assembled bottom wall is placed on a stand so as to be located on the outside of the bottom wall, the vertical joint between the stand at the lower end of the outer peripheral wall of the tank and the bottom wall orthogonal to the stand. A mounting bracket having an L-shaped cross section is brought into contact with the outside of the edge, and the vertical joint edge and the mounting bracket are fastened with bolts and nuts, and the mounting bracket is connected to the vertical joint edge at the lower end of the side wall parallel to the frame via the installation bracket. A reinforced structure for the installation part of a panel assembly type aquarium, characterized in that it is fastened with bolts and nuts.