JP2003082880A - Base isolation device in general house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a base isolation device capable of being installed to both existing and new general houses. SOLUTION: Sliding-bearing receiving members 4 are fixed onto each underside of sills 2 at sites where posts 3 are disposed upright at least at upper sections respectively while sliding bearing members 5 are fixed onto a concrete continuous footing 1 in the lower sections of the receiving members 4, and the receiving members 4 are disposed on the sliding bearing members 5.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation device for a general house made of wood, light board, steel frame or the like to impart seismic isolation. It is. 2. Description of the Related Art Conventionally, there has been no means for imparting seismic isolation to ordinary houses other than simply reinforcing columns and openings. [0003] As described above, conventionally, there is no other means for imparting seismic isolation to a general house except for reinforcing columns and openings. There was a problem that only seismic isolation was obtained, and it was insufficient as a seismic isolation device for ordinary houses. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a seismic isolation device for an ordinary house which can impart seismic isolation to an entire existing or newly constructed ordinary house. Things. [0005] The present invention relates to a seismic isolation device to be installed between a concrete cloth foundation and a base of a general house, and at least a base at a portion where columns are erected upward. A sliding support receiving member is fixed to each lower surface of the sliding support member, and the sliding supporting member is fixed to a concrete cloth foundation below the sliding supporting receiving member, and the sliding bearing receiving member is mounted on the sliding supporting member. The above problem has been solved by adopting the means. DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. The apparatus of the present invention comprises a concrete cloth foundation 1 and a base 2 of an existing or newly built general house H constructed of wood or lightweight boards or the like.
Installed in between. When installing the apparatus of the present invention in an existing general house H, the general house H is jacked up together with the base and the apparatus of the present invention is installed, or the concrete cloth foundation 1 is installed.
Is cut out at a predetermined position, and the apparatus of the present invention is installed.
On the other hand, in the case of a newly built general house H, a house is constructed after installing the device of the present invention on the concrete cloth foundation 1 and the base 2. The difference between the case where the apparatus of the present invention is installed in the newly constructed general house H and the case where the apparatus of the present invention is installed by jacking up is the case where the apparatus of the present invention is newly constructed. The only difference is that they are installed from the beginning, and the condition after installation is exactly the same.
A detailed description of is omitted. [0008] The device of the present invention is used to mount an existing general house H on a base 2.
A case in which each jack is set up will be described. First, the existing general house H is jacked up together with the base 2 to form a gap G, and a slip bearing member 4 is provided on each lower surface of the base 2 where the pillar 3 is erected upward.
Is fixed, and the slide bearing member 5 is fixed to the concrete cloth foundation 1 below the slide bearing member 4,
Thereafter, the house is jacked down, and the slide bearing member 4 is placed on the slide bearing member 5 to install the apparatus of the present invention. A slide bearing member 5 fixed to the concrete cloth foundation 1 includes a mounting piece 6 which is fixed by contacting the outer wall surface of the concrete cloth foundation 1, and a concrete cloth foundation on the inside of the upper edge of the mounting piece 6. A high-strength structure in which a mounting piece 7 to be mounted on the mounting piece 1 is projected at a right angle to form an inverted L-shaped fixing plate 8 and a curved protruding sliding surface 9 is provided on the upper surface of the mounting piece 7. -The slide bearing 10 made of high-hardness steel is integrally formed to protrude. In addition, the sliding bearing 1 in FIG.
Although 0 is formed in a hemispherical shape, it may be formed in a conical shape or a polygonal pyramid shape in which an upper surface (not shown) is curved and projected. The slide bearing member 5 is used to move the mounting piece 7 of the fixing plate 8 onto the concrete cloth foundation 1 by using a hard elastic material such as hard rubber or leaf spring having an action of absorbing an impact due to a load from above. The mounting piece 6 of the fixing plate 8 is positioned so that the center line of the rear pillar 3 and the center axis of the sliding bearing 10 coincide with each other. , A washer 13 is inserted into a long hole 12 provided in the mounting piece 6, and an anchor bolt 14 is inserted through the slot 12.
Fixed to. By inserting the anchor bolts 14 into the elongated holes 12, even if the hard elastic body 11 is compressed by receiving a load from above, the fixing plate 8 can be used as the elongated holes 12 as a guide.
Can be moved downward. On the other hand, the slide bearing member 4 fixed to the base 2 on the upper surface of the slide bearing member 5 fixed to the concrete cloth foundation 1 is provided in the recess of the inverted concave holding plate 15. High strength with a bowl-shaped sliding contact surface 16 against which the sliding bearing 10 can contact and slide.
A sliding plate 17 made of a high-hardness steel material, preferably a leaf spring, is fixed, and an inner edge of a fixing piece 18 that is fixed to the outer upper surface of the holding plate 15 is attached to a mounting piece 19 that contacts the outer wall surface of the base 2. Are formed at right angles to provide an L-shaped connecting plate 20, and a fixing piece 18 of the connecting plate 20 is fixed to the outer upper surface of the holding plate 15. The sliding bearing receiving member 4 is adjusted so that the center of the upper surface of the sliding bearing 10 is located at the center of the sliding contact surface 16, and the fixing piece 18 abuts on the outer wall surface of the base 2, and is mounted. It is integrally fixed to the base 2 by a fixing metal 21 such as a bolt. When there is an interval between each of the slide support members 5 and the slide support receiving members 4 disposed between the concrete cloth foundation 1 and the base 2, the columns 3 are located above the base 2.
Even if is not erected, one or a plurality of slip bearing members 5 and slip bearing receiving members 4 are appropriately installed between them. After arranging the slide bearing members 5 and the slide bearing receiving members 4 at predetermined positions, the general house H is jacked down, and each of the sliding bearing receiving members 4 on the lower surface of the base 2 is connected to a concrete cloth foundation. The device of the present invention is placed on the slide bearing member 5 on the first device 1 so as to be in the state shown in FIG. The connecting plate 20 fixed on the fixing plate 8 and the holding plate 15 is installed in a small gap between the concrete cloth foundation 1 and the base 2 of the existing ordinary house H which has been jacked up. Since it is almost impossible to fix the inner side, both the fixing plate 8 and the connecting plate 20
Are formed in inverted L-shape and L-shape so that they can be fixed to the outer wall surfaces of the concrete cloth foundation 1 and the base 2 only by installation work from the outside of the general house H. However, in the case of a newly built general house H,
Alternatively, when the gap between the concrete cloth foundation 1 and the base 2 of the existing general house H that has been jacked up is large, as shown in FIG. 4, an inverted concave fixing plate provided with mounting pieces 6 and long holes 12 on both sides. 8, the anchor bolts 14 are fixed to both side wall surfaces of the concrete cloth foundation 1, and the mounting pieces 19 are respectively abutted on both side wall surfaces of the base 2 so that the mounting pieces 19 can be fixed by the fixing brackets 21. The connecting plates 20 may be opposed to each other with a width of 2 and fixed to both side walls of the base 2. In the case where the existing general house H is entirely jacked up and the apparatus of the present invention is installed, if there is any delay, after the installation of the apparatus of the present invention, the center rises and acts as a center. Therefore, it is necessary to provide a reinforcing bar (not shown) between the opposed bases 2 in advance to reinforce. Next, instead of jacking up the existing general house H together with the base 2 as described above and installing the device of the present invention, the concrete cloth foundation 1 is cut out at a predetermined location, and the book is inserted into the cutout. The case where the invention apparatus is installed will be described. That is, as shown in FIG. 5, a concave notch 22 is formed in the cloth base 1 located on each lower surface of the base 2 at a position where the column 3 is erected upward, and the respective notch is formed. In the case where the space between the bases 22 is wide, the concave cutouts 22 are also provided in the lower fabric base 1 without the columns 3 respectively. In addition, the length of the notch 22 is slightly longer than the slip bearing member 4 and the slip bearing member 5. Then, the slip bearing members 5 and the slip bearing receiving members 4 having the same structure as those shown in FIG. 1 are respectively superimposed, and as shown in FIG. Press into. Then, as shown in FIG. 7, the mounting piece 6 of the fixing plate 8 abuts on the outer surface of the cloth foundation 1, and the connecting plate 20 abuts on the base 2, and is fixed by the anchor bolt 14 and the fixing metal 21, respectively. The device of the present invention is installed. When the apparatus of the present invention is installed in the cutout 22, the general house H is not jacked up.
Since it does not float even if there is a stagnation, it is not necessary to provide a reinforcing bar between the bases 2 to reinforce it. Further, when the apparatus of the present invention is installed in the cutout portion 22, since the installation operation can be performed only from the outside of the cloth foundation 1, the members shown in FIG. 4 cannot be used. Next, the operation of the seismic isolation device of the present invention will be described. When the general house H moves relative to each other due to the rolling, pitching, or the combined rolling and pitching of the general house H due to the occurrence of the earthquake, the sliding surface 9 of each of the sliding bearing members 4 causes the sliding surface 9 to move. In accordance with the relative displacement movement, the sliding movement is performed along the bowl-shaped sliding contact surface 16 of the support member 5 to alleviate the relative displacement movement, absorb the vibration, and reduce the seismic force on the entire general house H, thereby reducing the seismic effect. Can be obtained. Since the present invention is as described above, the structure can be simplified and installed in any existing or newly built general house, and the earthquake can be rolled, pitched or both. It has an excellent effect that a seismic isolation effect can be obtained in response to the combined swing of the above.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing a state in which a seismic isolation device in a general house of the present invention is jacked up to an existing general house or installed in a new general house. FIG. 2 is a plan view of the same. FIG. 3 is a side view as seen from the outside of the house. FIG. 4 is a vertical cross-sectional view showing a state of being installed by other members. FIG. 5 is a side view of a cutout portion used when installing a seismic isolation device in a general house of the present invention on a cloth foundation of an existing general house in another embodiment, as viewed from the outside of the house. FIG. 6 is a longitudinal sectional view showing a state where the seismic isolation device in the general house of the present invention is to be installed in the cutout portion. FIG. 7 is a vertical cross-sectional view showing the installed state. FIG. 8 is a side view as seen from the outside of the house. [Description of Signs] G Gap, H General house, 1 Concrete cloth foundation, 2 Base, 3 pillars, 4 Sliding bearing member, 5 Sliding bearing member, 22 Notch.

Continuation of front page    (72) Inventor Yuji Miura             6-18-7 Shimochiai, Yono City, Saitama Prefecture Tsujimura             Mansion 403 F term (reference) 2D046 DA12                 3J048 AA04 AC01 EA38

Claims (1)

Claims: 1. A seismic isolation device to be installed between a concrete cloth foundation and a base of a general house, at least on each lower surface of the base where a column is erected upward. A general bearing characterized in that a slide bearing receiving member is fixed, a sliding bearing member is fixed to a concrete cloth foundation below the sliding bearing receiving member, and the sliding bearing receiving member is mounted on the sliding bearing member. Seismic isolation devices in houses.