JP2000304090A - Shock absorbing foundation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shock absorbing foundation structure furnished with a shock absorbing structure, at the part to compose the continuous footing of a building, in order to protect the building from the rolling and the immediately lower type pitching of an earthquake. SOLUTION: On a floor surface to be built, recessed bases 9 independent at a specific interval are laid, each recessed base 9 is made in a circular form or a polygonal form, a concave lens plate 7 is set horizontally on the upper surface of the recessed base 9, a box structure 2 burying a specific diameter of ball 1 is provided at the center part of the concave lens plate 7, a coil spring 3 is fixed vertically at the upper part of the box structure 2, the upper part of the coil spring 3 and a column steel 5 to support a foundation 6 are fixed, an oil damper 14 is fixed to the box structure 2 and an iron plate 4, so as to compose a shock absorber device 8, and the shock of a rolling by an earthquake is absorbed by the upper surface of the concave lens plate 7 by rolling the ball freely, while the shock of an immediately lower type pitching is absorbed by the coil spring 3 and the oil damper 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing foundation structure for a building such as a general house, provided with a shock absorbing device as a measure against earthquakes.

[0002]

2. Description of the Related Art Seismic isolation base structures for buildings in preparation for earthquakes have been proposed so far. For example, many laminated rubber bearings are known, but they have little effect on vertical seismic force. There is no shock-absorbing base structure with a full-fledged shock-absorbing device that can simultaneously absorb the unseen, horizontal and vertical shaking of an earthquake.

[0003]

SUMMARY OF THE INVENTION The present invention is directed to a shock absorbing foundation structure for a building such as a general house and the like, which is capable of preventing a strong horizontal swing and a vertical type vertical shake at the same time during an earthquake. The object of the present invention is to provide a shock-absorbing foundation structure that protects a building, is economical and easy to construct.

[0004]

In order to achieve the above object, according to the present invention, independent concave bases 9 are laid at predetermined intervals on a floor to be built, and the concave bases 9 are circular or polygonal. A concave lens plate 7 is horizontally installed on the upper surface of the base 9, a box 2 in which a ball 1 having a predetermined diameter is embedded is arranged at the center of the concave lens plate 7, and a coil spring 3 is vertically fixed on the upper portion of the box 2. The column steel 5 supporting the upper part of the coil spring 3 and the base 6 is fixed, and the oil damper 14 is fixed to the box mold 2 and the iron plate 4 to constitute the shock absorbing device 8. Is a shock absorbing basic structure of a building that absorbs shock by rolling freely and absorbs the shock of vertical pitching by the coil spring 3 and the oil damper 14.

[0005] At present, measures against earthquakes such as pillar thickness, foundation, and crossing are stipulated to some extent by the Building Standards Law for ordinary houses and the like. However, if a strong earthquake of the Great Kanto Earthquake class occurs, tiles may fall. The building will be completely destroyed, and will suffer great financial damage.

According to the present invention, the rolling impact force of the Kanto Great Earthquake class is freely rolled on the upper surface of the concave lens plate 7 by the ball 1 of the shock absorbing device 8 arranged on the upper surface of the concave lens plate 7 installed on the concave base 9. Absorbs the roll, and
With respect to the pitching of a direct-type earthquake, the coil spring 3 absorbs the pitching, the oil damper 14 quickly absorbs the impact, and simultaneously absorbs the horizontal-type pitching of the earthquake. It can surely prevent damage.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to FIG.

For example, bases are provided at intervals of two, and the required area of the base ground 11 is dug down to a predetermined depth.
The concave base plate 9 is constructed by casting concrete, and the concave lens plate 7 is horizontally placed on the upper surface of the concave base 9 before the concrete is completely hardened.

The concave lens plate 7 has a circular or polygonal shape, and has an upward gradient from the center of the circle toward the outer periphery, and this angle is about 5 degrees. The concave lens plate 7 is made of stainless steel or brass. The concave lens plate 7 is formed so as not to have a seam. For this reason, it is desirable to press or machine.

The height of the concave lens plate 7 is perpendicular to the outer periphery of the concave lens plate 7.
A fall prevention wall 12 of about 5 cm is provided.
A rubber plate 13 having a thickness of about 3 cm is adhered to the inside of 2 to prevent the shock absorbing device 8 from falling off from the concave lens plate 7 at the time of an earthquake and to reduce the impact on the shock absorbing device 8 by the rubber plate 13. is there.

It is said that when an earthquake of the Great Kanto Earthquake class occurs, a horizontal movement of about 25 cm occurs. Therefore, in consideration of safety, it is desirable to set the diameter of the concave lens plate 7 to about 70 cm.

The ball 1 is preferably a steel ball or a stainless steel ball, and is preferably a steel ball which is hardly deformed and hardly rusted. The box mold 2 is also strong, and the inner surface of the box mold 2 is preferably hardly rusted. To provide grease and lubricating oil.

The shock absorbing device 8 covers a ball of about 15 cm with a square iron box 2 whose inner length and width are about 1 mm wider than the ball and whose lower portion is about 3 cm shorter than the ground surface of the ball 1. The ball 1 is not disengaged from the iron box 2, the coil spring 3 is vertically welded to the upper surface of the iron box 2, the iron plate 4 is welded to one side of the coil spring 3, and the iron plate 4 is Secured by bolts or welding, shock absorber 8
Is configured.

Shock absorbing device 8 constituting fabric base of building
Consists of a ball 1 and a box 2, a coil spring 3 and an iron plate 4, and a column is welded vertically to the upper surface of the box 2, and a column for reinforcing against external force from the side of the coil spring 3 may be erected. It is conceivable that, at this time, a through-hole is formed in the upper iron plate 4 and the column steel 5, and a coil spring 3 erected vertically on the upper part of the box mold 2 is fixed by welding, and one surface of the coil spring 3 is fixed. To the iron plate 4
And the column steel 5 are fixed by bolts or nuts or by welding, and the base 6 is placed on this.

In this case, it is conceivable to use a flexible joint or a flexible rubber hose for a piping system such as water supply and sewerage connected to the building. Separated by a rubber hose.
In both cases, the construction is performed so as to cope with the vertical and horizontal movement of about 5 to 60 cm.

Further, according to the method of the present invention, the building is rolled by an external force due to a strong wind other than the earthquake, and therefore, for example, usually, the concave base 9 and the roll of the wind, etc., which support the building by ropes, are used. In order to prevent this, an anti-roll device 15 using an electromagnet is provided. This anti-roll device 15 is connected to the building with a concave base 9 and a rope 17 as shown in FIG. 2 and supports an iron pin 16 on the concave base 9. An anti-roll device 15 is provided, and an attractable electromagnet is fixed inside the anti-roll device 15 to form an iron ring 18 for connecting a rope.
And an iron pin 16 for connecting the same, and a rod serving as a switch is provided under the floor or the like, which falls down due to the shaking of the earthquake, and is energized by the load of the rod. When the rod falls down in the event of an earthquake, the power of the switch is turned off, the pin 16 which has been stopped by the electromagnet falls, and the rope 17 separates from the concave base 9 to exert a shock absorbing effect.

If the building is made of, for example, a steel frame or a steel frame-based prefabricated system, bolt connection is possible and the construction can be easily performed. Steel is not subject to any restrictions. If the base 6 to be mounted on the column steel 5 is made of wood, it can be constructed with two-by-four houses, wooden prefabricated houses, and the conventional construction method. You can design freely.

[0018]

Since the present invention is configured as described above, when an earthquake rolls, the concave lens plate 7 violently rolls together with the ground, but the concave lens plate 7 and the shock absorbing device are used. 8 is completely separated, and the ball 1 below the shock absorbing device 8 freely rolls on the upper surface of the concave lens plate 7 in accordance with the roll, so that the roll 1
Is absorbed by the upper surface of the concave lens plate 7.

Further, since the concave lens plate 7 has an upward gradient from the center to the outer peripheral direction, a force acts in the opposite direction due to a building load with respect to a force in one direction, and the building always returns to the original position. Have.

Next, when a vertical type pitching occurs due to the earthquake, the coil spring 3 expands and contracts to absorb the vertical impact force, and the vertical force impact is absorbed by the oil damper 14. This has the effect of quickly absorbing the shaking.

As described above, the roll caused by the earthquake and the vertical pitch can be simultaneously absorbed to prevent the building from being damaged by the earthquake.

[Brief description of the drawings]

FIG. 1 is a sectional view and a partial side view showing an embodiment of the present invention.

FIG. 2 is a side view and a partial sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ball 2 Box type 3 Coil spring 4 Iron plate 5 Column steel 6 Base 7 Concave lens plate 8 Shock absorbing device 9 Recessed base 10 Reinforcing bar 11 Ground 12 Fall prevention wall 13 Shock absorbing rubber plate 14 Oil damper 15 Roll prevention device 16 Iron pin 17 Rope 18 Iron ring

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F16F 15/067 F16F 15/06 B

Claims (2)

[Claims] An independent concave base is laid at predetermined intervals on a floor surface to be constructed. The concave base is circular or polygonal, and a concave lens plate is horizontally installed on the upper surface of the concave base. A box type with a ball of a predetermined diameter embedded is arranged, a coil spring is fixed vertically to the upper part of the box type, and a column steel supporting the coil spring upper part and the base is fixed.
In addition, an oil damper is fixed to the box type and the iron plate, and a shock absorbing device is configured. The ball is rolled freely on the upper surface of the concave lens plate to absorb the shock caused by the earthquake and the shock is absorbed. Shock absorbing basic structure that absorbs the impact of pitching. 2. The foundation structure according to claim 1, wherein a column steel on which the base is placed and a shock absorbing device are fixedly connected to each other to form a floor bundle portion and a fabric base portion of the building by connecting them. A shock absorbing basic structure characterized in that the absorbing device is insulated.