TWI395860B - The shockproof device and the support used - Google Patents

Description

Anti-vibration device and support used therein

The present invention relates to a vibration caused by earthquakes, traffic vibrations, etc., which is transmitted between a foundation structure and an upper structure, such as a foundation structure and an upper structure, to reduce the vibration transmitted to the upper structure to prevent the upper structure. An anti-vibration device such as a collapse of a substance and a support used therefor.

[Patent Document 1] JP-A-2000-27935 [Patent Document 2] JP-A-2004-76907

For example, in Patent Documents 1 and 2, it is proposed that a support having a concave sliding surface upward is attached to the lower structure, and a support having a concave surface downward is attached to the upper structure, and the support is attached to the upper structure. An anti-shock device is provided between the support and the upper support so as to be slidable to the sliding surfaces. In Patent Document 1, it is proposed to laminate a metal thin plate having a curved surface and a thick plate, and to cause a mortar material to flow into a gap between the metal thin plate and the thick plate to form a filler body composed of a mortar solidified layer to manufacture an anti-vibration device for the upper support. Patent Document 2 proposes an anti-vibration device manufactured by flowing a mortar material between a filler body composed of a mortar solidified layer and a thick plate without generating a gap.

Further, in the anti-vibration device, the filler is formed by causing the mortar to flow into the gap between the thin metal plate (disk member) and the thick plate (cover member) to form the filler formed of the mortar solidified layer to manufacture the upper support. Or the lower support, so as long as the non-shrinkage mortar material and the high-strength mortar material are not used, it is difficult to form a high-strength filler body, and it is difficult to further eliminate the gap between the mortar solidified layer and the thick plate during the curing process of the mortar material. It is difficult to cause the metal thin plate to form a sliding surface having a desired curvature without causing unnecessary deformation due to shrinkage of the mortar material, so that it is difficult to exert the desired supporting function and anti-shock function. Further, in the case of using a high-non-shrinkage mortar material and a high-strength mortar material, it is difficult to reduce the cost of the anti-vibration device.

The present invention has been developed in view of the above points, and an object of the present invention is to provide an anti-vibration device which can exhibit a desired supporting function and a shock-proof function, and which can be reduced in cost, and a support used therefor.

The anti-vibration device of the present invention comprises: a lower support having a cross-sectional arc-shaped lower side bearing surface upward; and an upper support having a cross-sectional arc-shaped upper side bearing surface downward; and the intermediate portion The body is interposed between the lower support and the upper support; at least one of the lower support and the upper support comprises: a disk-shaped member having a concave plate portion having an arcuate cross section and the concave plate portion An integral annular side plate portion; a cover member fixed to the side plate portion of the disk member; and a filler body filled in a space partitioned by the disk member and the cover member, and having Bone and mortar.

According to the anti-vibration device of the present invention, in particular, at least one of the upper support and the lower support includes a filler body which is filled in a space partitioned between the disk-shaped member and the cover member, and has an aggregate material and a mortar material, so even The high-strength filler body can be formed without using the high-non-shrinkage or high-strength mortar material, and the above-mentioned gap can be eliminated, and the disk-shaped member, particularly the concave plate portion, can be formed without unnecessary deformation. The concave plate portion having the desired curvature can be used as a supporting function and a shockproof function, and even if a bone material such as grit or crushed stone and an inexpensive mortar having a shrinkage ratio are used as the filler, it is as if a non-shrinkage material is used. In general, the filler can reduce the shrinkage ratio of the entire package, and the device itself can be reduced in cost.

In a preferred embodiment of the anti-vibration device of the present invention, the aggregate and the mortar are mixed together, and the aggregate is also offset from the mortar by the concave portion of the disc member. In the case where the aggregate is more offset from the mortar material on the side of the concave plate portion, the cover member is not deformed by the stress of drying and shrinking of the mortar material on the side of the cover member having a large distribution of the mortar material, and on the other hand, The side of the concave plate portion where the aggregate material is distributed is small, so that the distribution of the mortar material is small, so that the stress of the drying shrinkage can be reduced, so that the concave plate portion is not deformed by the stress of the dry shrinkage of the mortar material to form the upper portion. The support and/or the lower support can be used to reinforce the concave portion by the offset of the aggregate, thereby eliminating unnecessary deformation of the concave portion. Here, the above-mentioned biasing is performed by arranging the cover member above and placing the disk-shaped member under the state, and filling the filler, and the difference in specific gravity between the mortar and the aggregate causes the aggregate to be distributed on the concave plate. In the state in which the mortar material is solidified in this state, and the cover member is placed above and the disk-shaped member is placed below, only the aggregate is placed along the concave plate portion and the cover member. The inner surface of the concave surface is disposed (for example, the disk member is vibrated to dispose the aggregate along the inner surface of the concave plate portion), and then the mortar is filled in the space defined by the cover member and the concave plate portion to be solidified. achieve.

In a preferred embodiment of the anti-vibration device of the present invention, the cover member includes: a flat cover body fixed to the side plate portion of the disc member; and a communication port formed in the cover body and connected to The space defined by the disk member and the cover member. According to such a preferred example, in a state where the cover member is disposed above and the disk-shaped member is disposed below, the filler can be easily filled through the communication port of the cover member.

The support for the anti-vibration device according to the present invention includes, in the same manner as at least one of the upper support and the lower support of the anti-vibration device, a disk-shaped member having a concave plate portion having an arcuate cross section and the concave plate a portion of the annular side plate that is integral; a cover member that is fixed to the side plate portion of the disk member; and a filler that is filled in the space defined by the disk member and the cover member, and Those who have aggregates and mortars. According to the support of the present invention, the same effects as described above can be exerted.

(Effect of the invention)

According to the present invention, it is possible to provide an anti-vibration device which can exhibit a desired supporting function and a shock-proof function, and which can be reduced in cost, and a support used therefor.

Next, an example of an embodiment of the present invention will be described in more detail based on the illustrated examples. Further, the present invention is not limited by these examples.

[Examples]

In FIGS. 1 to 4, the anti-vibration device 1 of the present embodiment includes: a lower support 2 having a concave-arc-shaped concave shape as a support for the lower sliding surface 4 of the lower bearing surface; The support 3 is a support having a cross-sectional arc-shaped concave shape as an upper side bearing surface upper sliding surface 6; and a sliding body 10 interposed between the lower support 2 and the upper support 3 Body.

The support 2 and the upper support 3 are formed to be mutually opposed to each other. Therefore, the lower support 2 will be described in detail below. For the upper support 3, the same reference numerals are attached to the drawings, and the detailed description is omitted. . Further, the lower support 2 can be fixed to the lower structure of the building by anchor bolts or the like, and the upper support 3 can be fixed to the upper structure of the structure by using an anchor bolt or the like.

The lower support 2, for example, as shown in FIGS. 1 to 3, includes a disk-shaped member 13 which is formed by a concave plate portion 11 having a circular arc shape and a disk shape in plan view, and is integrated with the concave plate portion 11. The ring shape is a plate-shaped body of the cylindrical side plate portion 12 in this example; the cover member 14 is fixed to the side plate portion 12 of the disk-shaped member 13; and the filler body 18 is It is filled in the space 15 partitioned by the disk-shaped member 13 and the cover member 14, and has the non-shrinkable aggregate 16 and the shrinkable mortar 17. The aggregate 16 and the mortar 17 are intermingled with each other. The filler body 18 inside the lower support 2 is composed of a hybrid of the hybrid aggregate 16 and the mortar 17.

The concave plate portion 11 is formed by integrally molding a stainless steel plate of a weather resistant steel sheet by die casting. The concave outer surface of the concave plate portion 11 opposed to the upper support 3 is constituted by the lower sliding surface 4.

The annular upper end surface 21 of the side plate portion 12 is integrally formed on the peripheral edge 22 of the concave plate portion 11, and the annular lower end surface 23 of the side plate portion 12 is integrally fixed to the cover member 14 by welding or the like. The side plate portion 12 is formed by sequentially expanding the diameter of the upper end surface 21 toward the lower end surface 23. The side plate portion 12 is made of the same material as the concave plate portion 11.

For example, as shown in FIGS. 2 and 3, the cover member 14 includes a flat and square-shaped cover body 31 which is fixed to the side plate portion 12; and a plurality of, in this example, four circular communication ports. 32 is formed in the cover body 31 and communicates with the space 15 defined by the disk member 13 and the cover member 14.

A vent hole (not shown) having a plurality of small diameters for venting the space 15 when the filling body 18 is filled is formed in a region in the center of the lid member 31. At the four corners of the cover member 31, circular holes 34a, 34b, 34c, and 34d for inserting anchor bolts or the like for supporting the lower support 2 under the structure are formed. The distances in the horizontal plane from the centers of the holes 34a, 34b, 34c, and 34d to the center line 35 extending in the vertical direction V of the downward support 2 are mutually equal. A straight line connecting the center of the connecting hole 34a and the center of the hole 34d and a straight line connecting the center of the hole 34b and the hole 34c intersect the center line 35, respectively. The distance from the center of the hole 34a to the center of the hole 34b, the distance from the center of the hole 34c to the center of the hole 34d, the distance from the center of the hole 34a to the center of the hole 34c, and the distance from the center of the hole 34b to the center of the hole 34d are in this example. Reciprocal in each other.

The four communication ports 32 are arranged at equal intervals in the circumferential direction of the imaginary circle centered on the center line 35 extending in the vertical direction V of the downward support 2. The center of the four communication ports 32 is located on the imaginary circle. The four communication ports 32 are in the horizontal direction H and are equidistant from the center line 35.

For example, as shown in FIGS. 5 and 6, the filler 18 is filled in the inner surface 41 of the concave plate portion 11, the inner circumferential surface 42 of the side plate portion 12, and the surface 43 of the lid main body 31 fixed to the side of the side plate portion 12. The above space 15 is divided.

The aggregate 16 composed of grit and gravel, preferably the aggregate 16 composed of crushed stone, is more offset from the mortar 17 on the side of the concave portion 11 of the disk member 13. The volume ratio of the aggregate 16 is preferably from 20% to 70%, more preferably from 30% to 50%, of the entire volume ratio of the space 15, and the size of the aggregate 16 is affected by the size of the anti-shock device 1, but is shockproof. In the apparatus 1 and the test body described later, it is preferably 5 mm to 25 mm, more preferably 20 mm or less. The aggregate 16 is preferably composed of a coarse aggregate having a size of 20 mm or less as described above.

The slider 10 is formed of a cylindrical rigid body having a height which can generate a moderate gap between the lower support 2 and the upper support 3. The diameter of the slider 10 is sufficiently smaller than the diameter of the lower sliding surface 4 and the upper sliding surface 6. The sliding body 10 includes a sliding lower surface 8 having the same curvature (curvature radius) as the curvature (curvature radius) of the lower sliding surface 4 of the lower support 2, and slidably contacting the lower sliding surface 4, and having an upper support The curvature (radius of curvature) of the upper sliding surface 6 of the object 3 is the same curvature (radius of curvature) and slidably contacts the sliding lower surface 9 of the upper sliding surface 6.

The lower sliding surface 4 and the upper sliding surface 6, and the sliding lower surface 8 and the sliding lower surface 9 are respectively formed by one of the spherical surfaces, and the respective radii of curvature are the same.

In the above-described anti-vibration device 1, the lower support 2 is movably supported by the upper support 3 via the slider 10 in the horizontal direction H, whereby the slider 10 is slid on the lower sliding surface 4 and the upper side in normal times. The central region of the face 6 receives the vertical load of the upper structure and supports the upper structure on the lower structure. Further, even if a slight horizontal force is applied to the upper structure due to wind or the like, or a slight horizontal force is added to the lower structure due to an earthquake or the like, the lower sliding surface 4 and the upper sliding surface 6 may be slid underneath. 8 and the frictional resistance generated by the contact of the sliding surface of the lower surface 9 causes the upper structure to not relatively oscillate the lower structure in the horizontal direction H.

When a large horizontal force is applied to the lower structure due to an earthquake or the like, the sliding of the lower sliding surface 4 and the upper sliding surface 6 occurs, and the sliding of the lower surface 8 and the sliding lower surface 9 occurs, and as shown in FIG. The slider 10 is relatively swayed in the horizontal direction H by the upper structure to the lower structure. In such vibration, the sliding body 10 is intended to return to the position shown in Fig. 1, and the vibration energy of the upper structure generated by the movement of the horizontal structure H of the lower structure is slid by the lower sliding surface 4 and the upper side. The friction between the faces of the face 6 and the faces of the sliding lower face 8 and the sliding lower face 9 is absorbed and attenuated. Therefore, even if a large horizontal force such as an earthquake is added to the lower structure, it is possible to prevent the upper structure from falling down.

In the following, when the manufacturing method of the support 2 used for the anti-shock device 1 is described, first, the disk-shaped member 13 and the flat-shaped cover member 14 which is fixed to the lower end surface 23 of the side plate portion 12 of the disk-shaped member 13 by welding or the like are prepared. The assembly 51 shown in Fig. 6 and the filler 18 in which the aggregate 16 and the shrinkable mortar 17 are mixed are used. Next, as shown in FIG. 6, the assembly 51 is disposed such that the disk member 13 is positioned above, and the cover member 14 is positioned below, and the filler 18 is filled in the space 15 in the assembly 51 via the communication port 32, and will remain The assembly 51 is disposed in a state as shown in Fig. 6, and the mortar 17 of the filled filler body 18 is solidified, and the arrangement state of the assembly 51 is maintained until the curing thereof is completed. The filler body 18 can also be supplied to the space 15 until it fills the communication port 32. The air present in the space 15 will flow out of the space 15 via the venting holes due to the supply of the filling body 18 to the space 15. Thus, the filler 18 composed of the aggregate 16 and the cured mortar 17 can be placed under the space 15 under the support 2.

When the lid member 14 is placed above and the disk-shaped member 13 is placed below, when the filler 18 in which the aggregate 16 and the mortar 17 are mixed is filled in the space 15, the aggregate 16 and the mortar are used. The difference in specific gravity of the material 17 causes the aggregate 16 to be distributed on the side of the concave plate portion 11, and on the other hand, the mortar 17 is distributed on the side of the cover member 14, and in this state, when the filler 18 is solidified, the aggregate 16 can be formed to be compared with the mortar. The material 17 is more offset from the support 2 below the concave plate portion 11 side.

Hereinafter, when another manufacturing method for the support 2 under the anti-vibration device 1 is described, first, the above-described combination 51, the aggregate 16 and the mortar 17 are prepared in separate states (that is, in a state in which they are not mixed). Next, the assembly 51 is disposed such that the cover member 14 is positioned above, and the disk-shaped member 13 is positioned below, and the aggregate 16 is supplied to the space 15 via the communication port 32 and faces the cover member 14 along the concave plate portion 11. The inner surface 41 is disposed, and thereafter, the mortar 17 is supplied to the space 15, whereby the filling body 18 composed of the aggregate 16 and the mortar 17 fills the space 15, and the assembly 51 is kept arranged as shown in FIG. The state is unchanged, and the filled filling body 18 is solidified, and the configuration state of the assembly 51 is maintained until the curing thereof is completed. The mortar material 17 can also be supplied to the space 15 until it fills the communication port 32. When the aggregate 16 is placed along the inner surface 41 of the concave portion 11, the disk member 13 can be vibrated. Thus, the filler 18 composed of the aggregate 16 and the cured mortar 17 can be placed under the space 15 under the support 2.

Further, the upper support 3 can also be produced in the same manner as the lower support 2.

Hereinafter, the test of the test body using the anti-vibration device 1 shown in Figs. 1 to 3 will be specifically described.

The support 2 under the test body was composed of the following conditions. The square-shaped cover body 31 has a side length of 630 mm. The cover body 31 has a thickness of 6 mm. The diameter of the communication port 32 is 50 mm. The diameter of the imaginary circle centering on the center line 35 and passing through the centers of the communication ports 32 is 500 mm. The diameters of the holes 34a, 34b, 34c and 34d are 18 mm. The distance from the center of the hole 34a to the X direction of the center of the hole 34b, the distance from the center of the hole 34c to the center of the hole 34b, the distance from the center of the hole 34a to the center of the hole 34c, and the center of the hole 34b to the center of the hole 34d The distance is 580 mm. The thickness of the disk member 13 is 2.3 mm. The outer peripheral end surface 23 of the side plate portion 12 has a peripheral diameter of 609 mm. In the concave plate portion 11, five vent holes are formed, and the diameter of the vent hole is 3 mm. The centers of the venting holes are located on an imaginary circle centered on the center line 35 and having a diameter of 250 mm. The vent holes are arranged at equal intervals in the circumferential direction of the aforementioned imaginary circle. The height of the lower support 2 is 40 mm.

The support 3 on the test body was constructed under the same conditions as the support 2 under the test body.

For this test body, the test was carried out with a vertical load condition of 132.7 kN and a maximum shear velocity of 1 cm/sec. The amplitude of the horizontal direction H caused by the sine wave vibration is ±30 mm.

Further, another test system for comparison with the above test body is provided with a filler (not shown) composed of a mortar material 17 having no shrinkage property of the aggregate material 16 in place of the vibration-proof device of the filler body 18. Another test system as the anti-vibration device was formed in the same manner as the test body of the above conditions. The same test as the above test body was also applied to the other test body.

In FIGS. 7 and 8, the X axis is the horizontal displacement (mm), and the Y axis is the horizontal load (kN). The history curve 61 of Fig. 7 is a curve formed by the test value of the test body, and the history curve 62 of Fig. 8 is a curve formed by the test value of the other test body. The intermediate refinement portion of the history curve 61 is smaller than the intermediate refinement portion of the history curve 62, and is closer to the quadrilateral, and the area enclosed by the history curve 61 (corresponding to the attenuation amount) is larger than the area surrounded by the history curve 62. In the test body of the anti-vibration device 1, the filler body 18 composed of the aggregate 16 and the mortar 17 is filled in the space 15, and the lower sliding surface 4 of the lower support 2 and the upper sliding surface 6 of the upper support 3 are The bending has a tendency to be less than the bending of the lower sliding surface of the support under the test body and the upper sliding surface of the upper support.

The anti-vibration device 1 according to the present embodiment includes a lower support 2 which has a concave arc-shaped shape as a lower side and a lower sliding surface 4 as a lower bearing surface; the upper support 3 has a downward direction a circular arc having a concave cross section as the upper sliding surface 6 of the upper bearing surface; and a sliding body 10 as an intermediate body between the lower support 2 and the upper support 3; the upper support 3 and the lower support At least one of the two includes a disk-shaped member 13 having a concave plate portion 11 having an arcuate cross section and an annular side plate portion 12 integrally formed with the concave plate portion 11; the cover member 14 is fixed The side plate portion 12 of the disk member 13 and the filler body 18 are filled in the space 15 defined by the disk member 13 and the cover member 14, and have the aggregate 16 and the mortar material 17, so that even if not used The high shrinkage-free or high-strength mortar material can also form a high-strength filler body 18, which eliminates the occurrence of a gap between the filler body 18 and the disk-shaped member 13 and the cover member 14 during the curing of the mortar material 17. With care, and the disc member 13, particularly the concave portion 11, does not undergo unnecessary deformation. The concave plate portion 11 having the desired curvature can be used as a supporting function and a shockproof function, and even if the aggregate 16 such as grit or crushed stone and the inexpensive pulverizing material 17 having a shrinkage ratio are used as the filling body 18, it is used as it is. As a filler, the non-shrinkage material generally reduces the shrinkage ratio of the entire body 18, and the vibration-proof device 1 itself can be reduced in cost.

According to the anti-vibration device 1, the aggregate 16 and the mortar 17 can be mixed with each other, and the aggregate 16 can be biased more than the mortar 17 on the concave portion 11 side of the disc member 13. When the aggregate 16 is more offset from the mortar 17 on the concave portion 11 side, the cover member 14 does not occur due to the stress of the dry shrinkage of the mortar 17 on the side of the cover member 14 where the mortar 17 is distributed a lot. On the other hand, on the side of the concave plate portion 11 in which the aggregate 16 is widely distributed, since the distribution of the mortar 17 is small, the stress of the drying shrinkage can be reduced, so that the concave portion 11 is not caused by the mortar 17 The stress of the dry shrinkage is deformed to form the upper support 3 and/or the lower support 2, and the concave portion 11 can be reinforced by the offset aggregate 16 to eliminate unnecessary deformation of the concave portion 11.

According to the anti-vibration device 1, the cover member 14 includes a flat cover body 31 which is fixed to the side plate portion 12 of the disk member 13; and a communication port 32 which is formed in the cover body 31 and which is connected to Since the disk member 13 and the space 15 defined by the cover member 14 are disposed, the cover member 14 is placed above and the disk member 13 is placed below, and can be simply filled through the communication port 32 of the cover member 14. Filler body 18.

1. . . Anti-shock device

2. . . Lower support

3. . . Upper support

4. . . Lower sliding surface

6. . . Upper sliding surface

10. . . Sliding body

Fig. 1 is a front explanatory view showing an example of an embodiment of the present invention.

Fig. 2 is a front elevational view showing the support of the example shown in Fig. 1.

Fig. 3 is an explanatory view of the arrow III-III of the example shown in Fig. 1.

Fig. 4 is an explanatory view showing the operation of the example shown in Fig. 1.

Fig. 5 is an explanatory view showing the manufacture of the example shown in Fig. 1.

Fig. 6 is an explanatory view showing the manufacture of the example shown in Fig. 1.

Fig. 7 is an explanatory view showing the test results of the test body of the example shown in Fig. 1.

Fig. 8 is an explanatory view showing test results of other test bodies different from the test body of the example shown in Fig. 1.

1. . . Anti-shock device

2. . . Lower support

3. . . Upper support

4. . . Lower sliding surface

6. . . Upper sliding surface

8,9. . . Slide below

10. . . Sliding body

11. . . Concave plate

12. . . Side plate

13. . . Disk member

14. . . Cover member

15. . . space

16. . . Aggregate

17. . . Mortar

twenty one. . . Upper end

twenty three. . . Lower end

32. . . Connecting port

35. . . Center line

H. . . horizontal direction

V. . . Vertical direction

Claims (5)

An anti-vibration device comprising: a lower support having a cross-sectional arc-shaped lower side bearing surface upward; an upper support having a cross-sectional arc-shaped upper side bearing surface downward; and an intermediate The body is interposed between the lower support and the upper support; at least one of the lower support and the upper support comprises: a disk-shaped member having a concave plate portion having an arcuate cross section and the concave plate portion An integral annular side plate portion; a cover member fixed to the side plate portion of the disk member; and a filler body filled in a space partitioned by the disk member and the cover member, and having The aggregates and the shrinkage of the mortar are mixed together. An anti-vibration device comprising: a lower support having a cross-sectional arc-shaped lower side bearing surface upward; an upper support having a cross-sectional arc-shaped upper side bearing surface downward; and an intermediate The body is interposed between the lower support and the upper support; at least one of the lower support and the upper support comprises: a disk-shaped member having a concave plate portion having an arcuate cross section and the concave plate portion An integral annular side plate portion; a cover member fixed to the side plate portion of the disk member; and a filler body filled in a space partitioned by the disk member and the cover member, and having An aggregate and a mortar; wherein the aggregate is more offset from the mortar than the concave side of the disc member. The anti-vibration device of claim 1 or 2, wherein the cover member comprises: a flat cover body fixed to the side plate portion of the disc member; and a communication port formed on the cover body and connected to The space defined by the disk member and the cover member. A support for an anti-vibration device, comprising: a disk-shaped member having a concave plate portion having a circular arc shape; and an annular side plate portion integral with the concave plate portion; the cover member being fixed to the cover member The side plate portion of the disk member; and the filler body are filled in a space partitioned by the disk member and the cover member, and have aggregates and a shrinkage mortar. A support for an anti-vibration device, comprising: a disk-shaped member having a concave plate portion having a circular arc shape; and an annular side plate portion integral with the concave plate portion; the cover member being fixed to the cover member a side plate portion of the disk member; and a filler body filled in a space partitioned by the disk member and the cover member, and having an aggregate and a mortar; wherein the aggregate is more offset from the mortar than the mortar The concave portion side of the member.