JP2007198104A - Structure foundation built by incorporating force absorbing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure foundation which is built by incorporating a force absorbing device that absorbs an applied force, and does not transmit the move of the ground as the force absorbing device absorbs a force that is caused by an earthquake, etc., to move the ground. <P>SOLUTION: A caster 10 in which ball bearings 3, 4, and 5 hold a steel ball 2 in engagement with the steel ball 2 to allow the ball 2 to rotate freely is fitted and fixed to the tip of one end of an absorber 6, and one end of a spring 9 is connected and fixed to the opposite end of the absorber 6. As a result, the caster 10, the absorber 6, and the spring 9 are connected to one another. Since the spring 9 with its free end at the head is inserted into a bearing cylinder 8, a bearing 7 arranged in the bearing cylinder 8 causes a part of the absorber 6 to slide in to send the absorber 6 into the bearing cylinder 8. The absorber 6 is kept sent in until the head of the spring 9 reaches the bottom of the bearing 8, and the free end of the spring 9 is fixed to the bottom to form the force absorbing device 1. This force absorbing device 1 is incorporated into the foundation bottom face 24 and the foundation wall faces 23 of the structure foundation 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a structure foundation in which a force absorbing device that absorbs force when force is applied is built in. The present invention relates to a structure foundation in which the force to move the ground when the ground moves due to an earthquake or the like is absorbed by the force absorbing device and the movement of the ground is not transmitted.

When the ground swings due to an earthquake or the like, it is natural that the ground structure firmly fixed to the ground swings and cannot escape. Although various devices for seismic isolation and earthquake resistance have been accumulated, the fear of earthquakes is not wiped out, and even if damage is reduced, there is nothing.

It is an object of the present invention to absorb a force that shakes the ground or the like and not transmit the force to a building. For that purpose, it is necessary not to fix the structure foundation to the ground, but to separate it from the ground, and to make the structure foundation not to be affected by earthquakes.

In the force absorbing device of the present invention that achieves the above object, a ball bearing fits and holds a steel ball, and a caster portion having a structure in which the steel ball rotates freely is attached and fixed to the tip of one end of the absorber. When the end side of the spring is fixedly connected to the opposite end of the absorber, the caster part, the absorber and the spring are integrally connected.
When the free end of the spring is inserted into the inside of the bearing cylinder, the bearings arranged inside the bearing cylinder slide in a part of the absorber and feed it. The spring is inserted until the top of the bearing tube reaches the bottom of the bearing cylinder, and a force absorbing device configured by fixing the free end of the spring to the bottom is built into the foundation bottom and the foundation wall of the structure foundation.

The force absorber uses a friction hinge and a spring instead of the absorber, bearing cylinder and spring. The ball bearing fits and holds the steel ball, and the steel ball rotates freely. The caster part of the structure to be mounted is fixed to the bottom surface of the lower base, and for the connection between the upper surface of the lower base and the bottom surface of the upper base, friction hinges and springs are respectively fixed to the upper surface of the lower base and the bottom surface of the upper base as shown in the figure. The built-in force absorber is built into the foundation bottom and foundation wall of the structure foundation.

In another embodiment, a hydraulic shock absorber, a pneumatic shock absorber, and other elastic shock absorbers are used instead of the spring. Further, a steel ball or the like is used in place of the bearings arranged inside the bearing cylinder.

As described above, according to the present invention, when the force of the earthquake that shakes the ground or the like presses the steel ball of the caster part that is fixedly attached to the wall surface and the bottom surface of the structure foundation, the force absorbing device contracts and the earthquake Absorb power. When the applied force disappears, the force absorbing device restores and keeps the fixed position when constructing the structure foundation. Even in the horizontal movement of the bottom of the underground space, the steel ball of the caster part on the bottom side of the structure is rotated like a wave ride, and the ground movement is overtaken. For this reason, many advantages are provided by the present invention because the structure foundation does not move and is not subject to earthquake shaking.

Embodiments of the present invention will be described below in detail with reference to the drawings.
FIG. 1 relates to a force absorber according to a first embodiment of the present invention. FIG. 2 is an enlarged partial sectional view of a caster part. FIG. 3 relates to the force absorbing device of the second embodiment. FIG. 4 is a static diagram showing a process in which the force absorbing device of the second embodiment absorbs the force. FIG. 5 is an underground space diagram for housing the structure foundation. FIG. 6 is a side cross-sectional view of the structure foundation in the first embodiment. FIGS. 7-8 is a top view partial sectional view of the structure foundation in the first embodiment. FIG. 9 is a stationary state diagram showing the movement of the underground space wall surface and the space bottom surface. FIG. 10 is a partial cross-sectional side view of a structure foundation in which a force absorbing device according to the second embodiment is built and constructed.

As shown in FIGS. 1 to 2, the ball bearings 3, 4, 5 are fitted and held on the steel balls 2, and the caster part 10 having a structure in which the steel balls 2 can freely rotate is connected to the tip of one end of the absorber 6. When the end of one end of the spring 9 is fixedly connected to the opposite end of the absorber 6, the caster portion 10, the absorber 6 and the spring 9 are integrally connected. When the free end of the spring 9 is inserted into the inside of the bearing cylinder 8 and inserted, the bearing 7 arranged inside the bearing cylinder 8 slides a part of the absorber 6 inward and feeds it. The force absorbing device 1 is constructed by inserting the top of the spring 9 until it reaches the bottom of the bearing cylinder 8 and fixing the free end of the spring 9 to the bottom. Built in.

When a pressing force in the front / rear / right / left and up / down directions is applied to the steel ball 2 serving as a contact sensor, the steel ball 2 rotates to pass the force and simultaneously transmits the pressing force to the caster unit 10. . The absorber 6 connected and fixed to the caster part 10 is pushed by the pressing force and is pushed into the inner side of the bearing cylinder 8 while sliding on the bearings 7 arranged inside the bearing cylinder 8, whereby the spring 9. Is compressed. The absorber 6 is pushed to the limit point where the pressing force reaches, compresses the spring 9, and absorbs the pressing force. When the limit point is exceeded, the pressing force disappears. When the pressing force applied to the steel ball 2 is released, the spring 9 is restored and the force absorbing device 1 is restored.

As shown in FIG. 6, the force absorbing device 1 is built and constructed on the foundation bottom surface 24 and the foundation wall surface 23 of the structure foundation 22 constructed in the underground space 25. The steel ball 2 of the force absorbing device 1 built in and built on the base bottom surface 24 side contacts the space bottom surface 27 vertically. In addition, the force absorbing device 1 is turned sideways on the side of the foundation wall surface 24, and a built-in construction is performed by applying a precompression force to the spring 9 so that it can expand and contract. The steel ball 2 is grounded so as to press the space wall surface 26. The force absorbing device 1 on the foundation bottom surface 24 side serves as a foundation for supporting the structure foundation 22 and the building thereon. The force absorbing device 1 on the side of the foundation wall surface 23 also serves as a support column that maintains a fixed position when the structure foundation 22 is constructed.

The early part of an earthquake may begin with a force thrusting from the basement. Moreover, although it often starts from rolling, a case where pitching and rolling occur simultaneously will be described. The steel ball 2 of the force absorbing device 1 built in and built on the foundation bottom surface 24 of the structure foundation 22 rotates in conjunction with the vertical movement and back and forth movement of the space bottom surface 27. At the same time, the caster part 10 and the absorber 6 receive the thrust force of the space bottom surface 27, compress the spring 9 to the limit point where the thrust force reaches, and absorb the thrust force. When the limit is exceeded, the thrust force disappears. When the earthquake ends and the thrust force is released, the force absorbing device 1 returns. The structure foundation 22 is not affected by the force absorbing device 1 because it absorbs the thrust force.

The steel ball 2 of the force absorbing device 1 built into the foundation wall surface 23 is also rotated in conjunction with the vertical movement or the front / rear / left / right movement of the space wall surface 26. As shown in FIG. 9, the caster part 10 and the absorber 6 receive the pressing force of the space wall surface 26, compress the spring 9 to the limit point where the pressing force reaches, and absorb the pressing force. When the limit point is exceeded, the pressing force disappears. When the earthquake ends and the pressing force is released, the force absorbing device 1 returns. The restored force absorbing device 1 functions as a support column that maintains a fixed position when the structure foundation 22 is constructed. The structure foundation 22 is not affected by the force absorbing device 1 because it absorbs the pressing force.

3 to 4 relate to the second embodiment, in which friction hinges 14 and 15 and springs 16 and 17 are used in place of the absorber 6, the bearing cylinder 8 and the spring 9, and the ball bearing 3, 4 and 5 fit and hold the steel ball 2, and the caster portions 18, 19, 20, and 21 having a structure in which the steel ball 2 can freely rotate are attached and fixed to the bottom surface of the lower base 13, and the upper surface of the lower base 13 A force absorbing device 11 is constructed by connecting the friction hinges 14 and 15 and the springs 16 and 17 to the upper surface of the lower base 13 and the bottom surface of the upper base 12 as shown in the figure. Built into the foundation bottom surface 24 and the foundation wall surface 23 of the object foundation 22.

When a front / rear / left / right pressing force and a vertical thrust force are applied to the steel ball 2 serving as a contact sensor, the steel ball 2 rotates to pass the force and is integrated with the steel ball 2. The pressing force is transmitted to the lower base 13 to which the caster portions 18, 19, 20, 21 are attached and fixed. The lower base 13 bends the friction hinges 14 and 15 and contracts the springs 16 and 17. The friction hinges 14 and 15 are bent to the limit point where the force reaches, and the springs 16 and 17 contract to absorb the force. When the force reaches the limit point, the pressing force and thrust force disappear. When the force applied to the steel ball 2 is released, the force absorbing device 11 returns.

As shown in FIG. 10, the force absorbing device 11 is built into the foundation bottom surface 24 and the foundation wall surface 23 of the structure foundation 22 constructed in the underground space 25. The steel ball 2 of the force absorbing device 11 built in and built on the base bottom surface 24 side contacts the space bottom surface 27 vertically. Further, the force absorbing device 11 is turned sideways on the side of the foundation wall surface 24, and a pre-compressing force is applied to the springs 16 and 17 so as to expand and contract, and the friction hinges 14 and 15 are bent and built. The steel ball 2 is grounded so as to press the space wall surface 26. The force absorbing device 11 on the foundation bottom surface 24 side serves as a foundation for supporting the structure foundation 22 and the building thereon. The force absorbing device 11 on the side of the foundation wall surface 23 also serves as a support column that maintains a fixed position when the structure foundation 22 is constructed.

When the space bottom surface 27 and the space wall surface 26 move in the vertical and horizontal directions, the steel ball 2 rotates when the thrust force from the bottom and the horizontal pressing force are applied to the steel ball 2, and the friction hinges 14, 15 are moved. Further bent, the springs 16 and 17 contract to absorb the thrust force and the pressing force. When the force reaches the limit point, the thrust force and pressing force disappear. When the earthquake ends and the force is released, the friction hinges 14 and 15 and the springs 16 and 17 are restored, and the force absorbing device 11 is restored. The restored force absorbing device 11 functions as a support column that maintains a fixed position when the structure foundation 22 is constructed. The structure foundation 22 is not affected at all because the force absorbing device 11 absorbs the thrust force and the pressing force.

Although the embodiments and examples of the present invention have been described above, the scope of the present invention is not limited thereto. The force absorber can be variously configured. For example, by adopting hydraulic, pneumatic, rubber elasticity, and other methods, the applied force can be absorbed smoothly, and when the force is released, all the structures that are restored Satisfy the constituent requirements of the invention. All are appropriately selected according to the situation.

In the embodiment, the material of the structure is not limited. For heavy loads, steel or steel concrete construction is desirable. The material to be used is appropriately selected for light loads.
The shape and structure of the structure foundation can be selected arbitrarily and is not specified. The size is not limited to the present invention and can be arbitrarily selected.

The present invention can be used throughout the country.

It is a fragmentary sectional view block diagram of the force absorber in 1st embodiment of this invention. It is a fragmentary sectional view enlarged view of the caster part of the force absorption apparatus of FIG. It is a fragmentary sectional view block diagram of the force absorber in 2nd embodiment of this invention. FIG. 4 is a static diagram illustrating a process in which a loaded force is absorbed in the force absorbing device of FIG. 3. It is an underground space figure which accommodates the structure foundation regarding embodiment of this invention. It is a side view partial sectional view of the structure foundation which built and constructed the power absorption device concerning a first embodiment of the present invention. It is a top view fragmentary sectional view of the structure foundation which built and constructed the power absorption device concerning a first embodiment of the present invention. It is a top view fragmentary sectional view of the structure circular foundation which built and constructed | assembled the force absorption apparatus regarding 1st embodiment of this invention. It is a static state figure which shows the motion of the underground space wall surface and space bottom with respect to the structure foundation which built and constructed | assembled the force absorption apparatus regarding 1st embodiment of this invention. It is a side view fragmentary sectional view of the structure foundation which built and constructed | assembled the force absorption apparatus regarding 2nd embodiment of this invention.

Explanation of symbols

1, 11 Force absorbing device 2 Steel ball 3, 4, 5 Ball bearing 6 Absorber 7 Bearing 8 Bearing cylinder 9, 16, 17 Spring 10, 18, 19, 20, 21 Caster part 12 Upper base 13 Lower base 14, 15 Friction Hinge 22 Structure foundation 23 Structure foundation wall surface 24 Structure foundation bottom surface 25 Underground space 26 Space wall surface 27 Space bottom surface

Claims (6)

The ball bearings 3, 4, and 5 fit and hold the steel ball 2, and the caster portion 10 having a structure in which the steel ball 2 can freely rotate is attached and fixed to the tip of one end of the absorber 6. When the one end side of the spring 9 is fixedly connected to the opposite end, the caster portion 10, the absorber 6 and the spring 9 are integrally connected. When the free end of the spring 9 is inserted into the inside of the bearing cylinder 8 and inserted, the bearing 7 arranged inside the bearing cylinder 8 slides a part of the absorber 6 inward and feeds it. The spring 9 is inserted until the top of the bearing tube 8 reaches the bottom, and the free end of the spring 9 is fixed to the bottom. Structure foundation 22 built in and built in. In the above claim 1, instead of the absorber 6, the bearing cylinder 8 and the spring 9, friction hinges 14, 15 and springs 16, 17 are used. The casters 18, 19, 20, 21 having a structure in which the steel balls 2 are freely rotated are attached and fixed to the bottom surface of the lower base 13, and between the upper surface of the lower base 13 and the bottom surface of the upper base 12. For the connection, the force absorbing device 11 is configured by attaching and fixing the friction hinges 14 and 15 and the springs 16 and 17 to the upper surface of the lower base 13 and the bottom surface of the upper base 12 as shown in the figure. A structure foundation 22 built into the foundation wall 23. In the first claim, the structure foundation 22 is constructed by incorporating the force absorbing device 1 using a hydraulic shock absorber in place of the spring 9 into the foundation bottom surface 24 and the foundation wall surface 23 of the structure foundation 22. In the first claim, the structure foundation 22 is constructed by incorporating the force absorbing device 1 using a pneumatic shock absorber in place of the spring 9 into the foundation bottom surface 24 and the foundation wall surface 23 of the structure foundation 22. In the second claim, instead of the friction hinges 14, 15 and the springs 16, 17, the force absorbing device 11 using a hydraulic shock absorber is incorporated in the foundation bottom surface 24 and the foundation wall surface 23 of the structure foundation 22. The constructed structure foundation 22. In the second claim, instead of the friction hinges 14, 15 and the springs 16, 17, the force absorbing device 11 using a pneumatic shock absorber is incorporated in the foundation bottom surface 24 and the foundation wall surface 23 of the structure foundation 22. The constructed structure foundation 22.

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