JP5649182B2 - Building support equipment - Google Patents

Description

  The present invention relates to a building support device for preventing the inclination of a building due to ground subsidence.

  Conventionally, when a land subsidence occurs due to a liquefaction phenomenon caused by an earthquake, for example, a part of a building such as a house or a building may sink into a cavity where the land subsidence occurs and the building may be damaged. In such a case, for example, the foundation of the submerged building is pushed up with a hydraulic jack, etc., supported by a column such as a steel pipe, and the subsidence ground is backfilled with concrete, etc., to restore the building to its original horizontal state. Construction is performed (see, for example, Patent Document 1).

JP 2010-248744 A

  However, in order to repair a building that has been tilted due to land subsidence, large-scale restoration work, such as pushing up the building using a hydraulic jack as described above, is required. The economic burden required for this will also increase. Moreover, even when the building is restored to a horizontal state, a building that has been largely inclined once has many distortions remaining in the beams, columns, fittings, etc., and it has been difficult to completely restore the original state.

  This invention is made | formed in view of the said problem, The place made into the objective is providing the building support apparatus which can suppress the inclination of a building, even when ground subsidence arises.

In order to achieve the above object, the building support apparatus of the present invention includes a first support member that supports the building body from below by an upper end side, a second support member that is grounded at the lower end side to the ground side, A plurality of urging means for urging the two support members downward with respect to the first support member; and a movement restricting means for restricting the upward movement of the second support member relative to the first support member. Are installed at a plurality of locations between the building main body side and the ground side, and each supporting unit is installed on a pressure-resistant panel that is inclined with respect to the building main body due to ground subsidence, and the lower end of the second supporting member The side is swingably connected to a pressure-resistant panel via a universal joint .

As a result, when the ground subsidence occurs in the ground of the building, the second support member of the support unit at the position where the ground subsidence moves downward with respect to the first support member and extends. Since the building is supported from below by the support unit, the inclination of the building due to ground subsidence is suppressed. At that time, since the second support member is urged downward by the urging means, the second support member moves downward so as to follow the ground subsidence. Further, since the movement of the second support member in the opposite direction is restricted by the movement restricting means, the second support member is held in a state of moving downward. In addition, each support unit is installed between the building main body side and the ground side pressure platen, and the pressure platen is inclined with respect to the building body due to ground subsidence. Only the position does not sink excessively, and the amount of settlement is distributed to each support unit.

According to the present invention, the inclination of the building body can be suppressed by supporting the building body with the support unit extended according to the ground subsidence, so that a large-scale construction for repairing the inclined building is required. In addition, there is no distortion of the beams, columns, joinery, etc. due to the inclination of the building, and damage to the building due to ground subsidence can be reduced. Also, even when repairing the subsidized ground, the building is held in a horizontal state by the support unit , so it is not necessary to push up the building with a hydraulic jack, etc. Can do. In this case, since the second support member can be moved downward so as to follow the ground subsidence by the biasing means, the support unit can be reliably extended according to the ground subsidence. Moreover, since the state which the 2nd support member moved below by ground subsidence can be hold | maintained, a building main body can be reliably supported by the extended support unit. Furthermore, since the amount of settlement can be distributed to each support unit, it is not necessary to increase the amount of movement of the second support member, and the support unit can be downsized in the vertical direction.

The perspective view which shows one Embodiment of the building provided with the building support apparatus of this invention Side view of building with building support Top view showing the foundation of the building Side sectional view of the support unit Plan sectional view of the support unit Side view of the building showing the operation of the building support system Side sectional view showing the operation of the support unit

  1 to 7 show an embodiment of the present invention, which shows a building support device for suppressing the inclination of a building due to ground subsidence.

  The building 1 shown in the figure is constructed by installing a building body 2 made of, for example, a wooden building above a reinforced concrete structure pressure platen 3, and the pressure platen 3 is provided in the ground on the ground side. The base 2a of the building body 2 is fixed on the reinforcing frame 4, and the reinforcing frame 4 is made of a steel material extending along the base 2a.

  The building support apparatus 10 according to the present embodiment includes a plurality of support units 11 disposed between the reinforcing frame 4 and the pressure platen 3, and as shown in FIG. A plurality of them are installed in the width direction.

  The support unit 11 includes a first support member 12 whose upper end side is connected to the building side, a second support member 13 whose lower end side is grounded to the ground side, and the second support member 13 as a first support. A coil spring 14 as a biasing means for biasing the member 12 downward, and a stopper mechanism as a movement restricting means for restricting the upward movement of the second support member 13 relative to the first support member 12. 15.

  The first support member 12 is a piston-like member extending in the vertical direction, and a first pedestal 12a for supporting the reinforcing frame 4 is provided at the upper end thereof. A screw portion 12b that is screwed into the first support member 12 is provided at the lower end of the first pedestal 12a. When the first pedestal 12a is rotated, the first pedestal 12a is first supported by the screw portion 12b. It moves up and down with respect to the member 12.

  The 2nd support member 13 consists of a cylindrical member which opened the upper end, and the 1st support member 12 is inserted in the inside so that a movement to an up-down direction is possible. A second pedestal 13a fixed to the pressure-resistant panel 3 is provided on the lower end side of the second support member 13, and the second pedestal 13a is provided via a universal joint 13b formed by engaging a sphere and a spherical surface. The support member 13 is connected to the lower end of the second support member 13 in a swingable manner.

  The spring 14 is provided in the second support member 13 and is disposed in a compressed state between the bottom surface of the second support member 13 and the lower end surface of the second support member 13.

  The stopper mechanism 15 includes a locking tooth 15a provided on the first support member 12 side and a locking claw 15b provided on the second support member 13 side, and the locking claw 15b is a second support. The member 13 is provided at a plurality of locations in the circumferential direction. The locking teeth 15 a are arranged on the outer peripheral surface of the first support member 12 in the vertical direction and are formed so as to extend over the entire periphery of the first support member 12. The locking claw 15b penetrates the peripheral surface of the second support member 13 so as to be movable in the radial direction of the second support member 13, and its tip is locked to the locking teeth 15a. In this case, the front end of the locking claw 15b is inclined upward toward the locking tooth 15a, and the locking tooth 15a is inclined downward toward the locking claw 15b. As a result, the locking claw 15b is restricted from moving upward by the locking teeth 15a, and the downward movement is allowed when the locking claw 15b moves backward from the locking teeth 15a due to the inclination. Yes. In this case, the locking claw 15 b is biased toward the locking tooth 15 a by the spring 15 c, and the spring 15 c is accommodated in a case 15 d attached to the outer surface of the second support member 13.

  In the support unit 11 configured as described above, the first pedestal 12a is fixed to the reinforcing frame 4 and the second pedestal 13a is fixed to the pressure-resistant panel 3 so that the building main body 2 side and the ground side are fixed. It is installed between. At that time, the height position of the first pedestal 12a relative to the frame 5 can be adjusted by rotating the first pedestal 12a and moving it up and down by the screw portion 12b.

  In the building support apparatus 10, for example, when ground subsidence occurs due to a liquefaction phenomenon caused by an earthquake, the pressure-resistant panel 3 is inclined by the ground subsidence as shown in FIG. 6. As a result, in the support unit 11 at the position where the ground subsidence occurs, the second support member 13 is lowered with respect to the first support member 12 by the amount that the pressure platen 3 has subsided due to the ground subsidence, as shown in FIG. Moving. At this time, since the second support member 13 is biased downward by the spring 14, the second support member 13 moves downward so as to follow the settlement of the pressure-resistant platen 3. Further, since the second support member 13 is restricted from moving in the opposite direction by the stopper mechanism 15, the second support member 13 is held in a state of moving downward. That is, the support unit 11 at the position where the ground subsidence extends in the vertical direction according to the amount of ground subsidence, so that the building main body 2 is held in a horizontal state, and the inclination of the building main body 2 due to the ground subsidence is suppressed. . Thereafter, even when the land subsidence proceeds, the second support member 13 moves further downward in accordance with the progress of the land subsidence, and the inclination of the building body 2 is suppressed.

  Thus, according to the present embodiment, the first support member 12 whose upper end side is connected to the building side, the second support member 13 whose lower end side is grounded to the ground side, and the second support member. A plurality of supports comprising a spring 14 for urging 13 downward with respect to the first support member 12 and a stopper mechanism 15 for restricting upward movement of the second support member 13 relative to the first support member 12. The unit 11 is disposed between the building body 2 side and the ground side, and the second supporting member 13 at the position where the ground sinks is moved downward by the spring 14 to support the building body 2 from below. Therefore, the inclination of the building main body 2 due to ground subsidence can be suppressed by the support unit 11, and the building main body 2 can be maintained in a horizontal state. This eliminates the need for extensive construction work to repair the tilted building, and the building does not tilt significantly due to ground subsidence, so there is no distortion of the beams, columns, fixtures, etc. due to the building tilt. Damage to buildings due to land subsidence can be reduced. Even when the subsidized ground is repaired, since the building body 2 is held in a horizontal state by the support unit 11, it is not necessary to push up the building with a hydraulic jack or the like as in the prior art, so that the ground can be repaired easily. Can be done.

  In this case, since the second support member 13 is urged downward by the spring 14, the second support member 13 can be moved downward so as to follow the ground subsidence, and the support unit 11 can be moved. It can be reliably extended according to land subsidence.

  Further, since the movement of the second support member 13 in the opposite direction is restricted by the stopper mechanism 15, the state where the second support member 13 has moved downward due to the ground subsidence can be reliably maintained and extended. The building main body 2 can be reliably supported by the support unit 11.

  Further, the first support member 12 and the second support member 13 are formed by a cylinder-like member and a piston-like member that are slidably engaged with each other in the vertical direction, and the spring 14 is formed by the first support member 12. Since the first support member 12, the second support member 13, and the spring 14 can be coaxially arranged, the support unit 11 is arranged in the width direction. Can be reduced in size.

  Further, the stopper mechanism 15 is configured so that the locking claw 15b provided on the second support member 13 side is locked to the locking teeth 15a arranged in the vertical direction on the first support member 12 side. The movement of the second support member 13 in the opposite direction can be reliably restricted at the position where the second support member 13 has moved, and the building body 2 can be accurately supported according to the amount of ground subsidence. it can.

  Furthermore, each support unit 11 is installed between the reinforcing frame 4 provided on the bottom surface side of the building body 2 and the pressure board 3 provided on the ground side, and the pressure board 3 sinks to the building body 2. Therefore, only the installation positions of some of the support units 11 do not sink excessively, and the amount of settlement can be distributed to each support unit 11. Thereby, it is not necessary to increase the movement amount of the second support member 13, and the support unit 11 can be downsized in the vertical direction.

  In this case, since each support unit 11 supports the reinforcing frame 4 of the building body 2, the reinforcing frame 4 can suppress distortion of the building body 2 when the ground sinks.

  DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Building main body, 3 ... Pressure-resistant board, 4 ... Reinforcement frame, 10 ... Building support apparatus, 11 ... Support unit, 12 ... 1st support member, 13 ... 2nd support member, 14 ... Spring, 15: Stopper mechanism.

Claims (3)

A first support member that supports the building body from below by the upper end side, a second support member that is grounded to the ground side at the lower end side, and a second support member that is attached to the lower side with respect to the first support member. A plurality of support units including a biasing means for biasing and a movement restricting means for restricting the upward movement of the second support member relative to the first support member at a plurality of locations between the building main body side and the ground side installed in,
Each support unit is installed on a pressure plate that inclines due to ground subsidence with respect to the building body,
A building support apparatus characterized in that the lower end side of the second support member is swingably connected to a pressure-resistant panel via a universal joint . The first support member and the second support member are formed by a cylinder-like member and a piston-like member that are slidably engaged with each other in the vertical direction,
The building support apparatus according to claim 1, wherein the biasing means is formed by a spring disposed in a compressed state between the first support member and the second support member. The movement restricting means includes a locking claw provided on the other of the first support member and the second support member on a locking tooth arranged in the vertical direction on one of the first support member and the second support member. The building support apparatus according to claim 1, wherein the building support apparatus is configured to be locked.

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