JP3197602U - Building with seismic structure and seismic isolation device - Google Patents

Abstract

A building having a seismic structure that can protect a structure from seismic waves is provided. A foundation 1 on which a structure is mounted and fixed is provided with at least two cuts in a vertical direction and divided. Between the structure and the building, an upper base 2 and a seismic isolation device in which a cushioning material is mounted between the lower tray are interposed. The upper saucer 2 and the lower saucer of the seismic isolation device are conical or hemispherical. Since the seismic isolation device is installed on the upper side of the divisional foundation, the vertical and horizontal shaking is eliminated, so the structure will not collapse. Buildings with earthquake-resistant structures are built in factories, so construction is safe, fast, and inexpensive. The foundation of a high-rise building is also divided and built. [Selection] Figure 1

Description

The present invention relates to a split foundation and a seismic isolation device for protecting a structure from seismic waves (hereinafter, transverse waves are abbreviated as P waves and longitudinal waves are abbreviated as S waves).

The foundation of many structures is a building which is made of cloth foundation, and the main pillar and wall are integrated on top of the foundation of the cloth foundation. In general, seismic isolation rubber is not installed between the foundation and the foundation.

Japanese Utility Model Publication No. 7-12540

The foundation of a conventional structure is a cloth foundation that is made in one piece, and a foundation, main pillars, and walls are built on top of the one piece of cloth foundation, and a roof and two or more floors are built on top of them. Since it is formed like a single box, it has the following defects.
1. When the P wave of an earthquake with the same wavelength as one side of the integrated fabric foundation hits the integrated fabric foundation, the integrated fabric foundation resonates and rolls greatly, so the structure above it also violently rolls, The furniture falls down, people are inserted, and in the worst case, the structure collapses.
2. When an integrated foundation of a high-rise building hits a P wave of an earthquake with the same wavelength as the length of one side of the integrated foundation, the high-rise floor rolls several meters, causing damage caused by indoor furniture running into it. I get out. In severe cases, high-rise buildings may collapse. During the Great Hanshin Earthquake, there are buildings whose first and second floors were crushed by the earthquake.
3. There is an accident that the floating lid of a cylindrical oil tank with a diameter of about 50 meters hits the tank violently with the P wave of the earthquake and burns for two days.
4). In order to build an integral foundation at the construction site, it is necessary to assemble the formwork, pour concrete into the concrete, remove the formwork, and then finish the upper surface (top edge) of the integral cloth foundation with mortar. Therefore, depending on the weather and temperature, it takes a lot of days to build and labor, which increases costs. As a result, the period for constructing the structure becomes longer.
5. In order to bring ready-mixed concrete to a residential area, it is transported with a ready-mixed car, but on a narrow road in a residential area, a large and tall ready-mixed car is difficult to pass. Because it hardens, it must be thrown away and is wasteful. Since it is necessary to wash the inside of the tank of the ready-mixed car after lowering the ready-mixed container, the waste water treatment is required.
6). When an earthquake S wave comes, the structure swings up and down, and when an earthquake P wave comes, the structure swings left and right. However, seismic isolation rubber is usually not installed to prevent them.
7). Recent houses have many solid foundations integrated with the cloth foundation, but when the earthquake P wave hits, the shaking becomes more intense than the cloth foundation alone.
8). The location of the seismic isolation rubber in the concrete building is difficult because it is close to the center, and the concrete structure is supported only in a few places, so it is necessary to make the foundation large and sturdy. Seismic isolation rubber is expensive because it takes time to make.
Seismic isolation rubber cannot be used in warehouses and multilevel parking lots where the center of gravity always changes.
For the above reasons, concrete seismic isolation structures are not popular because of the high construction costs.
9. When a P wave of an earthquake that synchronizes with the width of the foundation of a large structure is hit, the foundation resonates and shakes greatly.

In order to achieve such an object, the present invention is a building in which a foundation on which a structure is mounted and fixed has a seismic structure of a structure in which at least two or more cuts are divided vertically, A seismic isolation device consisting of a cone or hemisphere is interposed between the upper tray and the lower tray between the buildings having the seismic structure of the divided structure. A cushioning material is attached between the saucer and the lower saucer. Specifically, it is a divided foundation obtained by dividing a cloth foundation to be integrally made into several pieces, and the length is also made into a long and short type. The foundation is produced at the factory. A long nut is buried in order to install the cocoon-type seismic isolation device, which arranges the foundation in the same way as an integral cloth foundation. In addition, the circular arc foundations of the cylindrical tank are arranged in a circle. At the construction site, place the divided foundations on the concrete like a cloth foundation, and adjust the top edge of the top surface with jack bolts on the foundation pedestal. The stone is fixed to the bundle so that the bundle does not slip off due to the P wave of the earthquake. Put a thick vinyl sheet on the earth and sand in the center. Instead of seismic isolation rubber, a cap-type seismic isolation device (including hemispherical seismic isolation device) will be installed between the foundation and the base. The cap-type seismic isolation device has a soft rubber adhered between the upper and lower trays, and an absorber such as a coil spring 8 is put on the upper tray. Although not shown, special foundations such as short foundations, entrance foundations, and foundations with ventilation openings are also manufactured at the factory.

Buildings with an earthquake-resistant structure according to the present invention are divided into an integral fabric foundation, and the lengths are made short and several types, and the foundations manufactured at the factory are thrown away at the construction site and placed on the concrete. Because it is adjusted, there is no need to lay the formwork, pour concrete, and finish the top with mortar horizontally at the construction site. When it is cold, the concrete panel can be warmed with a steam pipe and dried quickly. Cylindrical foundations are arranged in a circle. In addition, there is no need to carry a large amount of ready-mixed concrete for a large ready-mixed car, and there is no waste of throwing away the ready-made concrete. It is not necessary to treat the waste water that has been washed in the tank of the ready-mixed vehicle after the ready-mixed product is lowered. The period for building the foundation is shortened and is not affected by temperature, climate, etc. By placing a vinyl sheet on the earth and sand, the foundations are not integrated even if a P wave of the earthquake hits, so the timing is shifted little by little, so the first and second floors of the building will not collapse. In addition, the moisture does not rise below the floor, so the floorboard does not rot. Moreover, as shown in FIG. 5, even if the wave which synchronizes with the width | variety of a structure hits a foundation with the P wave of an earthquake, a foundation will not shake. As a result, the divisional foundation is less swayed than the conventional monolithic cloth foundation. Since the cap-type seismic isolation device is installed between the foundation and the foundation on the outer periphery of the structure, the cap-type seismic isolation rubber is installed on the foundation, which can absorb up and down, left and right shaking, so the installation place is exempted. Easier than seismic rubber, the base may be smaller and lighter than the base of seismic isolation rubber. By dividing the foundation of the high-rise building, it does not receive the long-period wave of the P wave of the earthquake, so it prevents the high-rise floor of the high-rise building from rolling several meters.
The cylindrical tank is not damaged by the earthquake P wave.

It is the inclination figure of the foundation which made the foundation of the structure concerning this invention split-independent. It is a perspective view which shows the shade type seismic isolation apparatus which concerns on this invention. It is a perspective view of a cone type seismic isolation system according to the present invention. 1 is a perspective view of a hemispherical seismic isolation device according to the present invention. It is explanatory drawing where the building of an earthquake-resistant structure using the division | segmentation foundation which concerns on this invention hits P wave of an earthquake. It is state explanatory drawing where the conventional monolithic fabric foundation rolls in resonance with the P wave of an earthquake.

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

In the present embodiment, as shown in FIG. 1, the cloth foundation 6 to be integrally manufactured is divided, and the length of the foundation 1 is manufactured in various kinds of factories, and is separated and independent as shown in FIG. It is a building with a seismic structure. A shade-type seismic isolation device 10 is installed on the upper surface of the divided foundation 1, and a solid base is attached on the upper side, and a normal structure is built thereon.
FIG. 2 shows a shade type seismic isolation device 10 according to the present invention.
FIG. 3 is an enlarged view of the cap-type seismic isolation device 10 of FIG. 2, and shows the cap-type seismic isolation device 10 in which a cushioning material 3 such as rubber is mounted between the upper tray 2 and the lower tray 4. . FIG. 4 shows a hemispherical seismic isolation device 9 in which the cushioning material 3 is mounted between the upper tray 2 and the lower tray 4.
Specifically, the foundation 1 shown in FIG. 1 is similar to the conventional cloth foundation 6 in that the ground is rooted and crushed stone is laid on the soil hardened with rammer, and then discarded concrete is laid on the ground. On top of that, the foundation 1 of the building having an earthquake-resistant structure manufactured at the factory is arranged on the discarded concrete and backfilled with earth and sand. In addition, when it is necessary to connect the foundations 1 adjacent to each other, reinforcing bars are connected and the gap 1a is filled with mortar. A shade-type seismic isolation device 10 is installed on the foundation 1, and a structure is built on the upper side as described above. A cylindrical hole (not shown) is formed in the foundation 1 of the high-rise structure shown in FIG. 2, and fixed to the hole with a mortar through a foundation pile. FIG. 5 is an explanatory diagram in which a seismic wave hit by a P wave 5 of an earthquake is not resonated in a building having an earthquake resistant structure using a split foundation according to the present invention, and reference numeral 7 in FIGS. 5 and 6 indicates a direction of shaking. FIG. 6 is an explanatory diagram of a situation in which the conventional monolithic fabric foundation 6 rolls in resonance with the P wave 5 of the earthquake.

The split base and the shade-type seismic isolation device strong against the P wave and the S wave of the earthquake according to the present invention can eliminate the shaking of the structure and prevent the structure from collapsing. In addition, since the division base can be mass-produced at the factory, the work on the construction site is reduced, and it is not affected by the weather, temperature, safety, short period of time. In addition, the cap-type seismic isolation device eliminates earthquake damage due to earthquakes, which eliminates rolls caused by earthquake P waves and pitches caused by earthquake S waves. The structure can be built quickly for the above reasons. Even if a P wave of a resonating earthquake comes, there will be no large rolls on the high floors of the high-rise buildings, so there will be no collapse of the high-rise buildings. The shade-type seismic isolation device can also be used for machinery and furniture.

1 Foundation 1a Clearance between foundations (two or more notches in the vertical direction)
2 Upper shade tray (upper hemispherical tray)
3 Anti-vibration rubber (buffer material)
4 Lower shade tray (lower hemispherical tray)
5 P wave of earthquake 6 Fabric foundation 7 Shaking direction 8 Coil spring 9 Hemispherical seismic isolation device 10 Shade type seismic isolation device

Claims (3)

A building having a seismic structure for a structure, characterized in that at least two or more cuts are provided in a vertical direction on a foundation portion on which the structure is mounted and fixed. A seismic isolation device in which a shock absorber is mounted between the upper tray and the lower tray is interposed between the structure and the building having the seismic structure of the divided structure. A building having the earthquake-proof structure of the structure according to Item 1. The building having an earthquake-resistant structure for a structure according to claim 2, wherein the upper tray and the lower tray of the seismic isolation device are conical or hemispherical.

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