JPH06346629A - Support structure of building - Google Patents

Abstract

PURPOSE:To achieve low construction cost within a short construction period by a method wherein an elastic support body is interposed between a building and a base in such a manner that an upper support member and lower support member for supporting the elastic body are provided so as to be opposed to each other, and a horizontal stopper is provided to prevent a horizontal movement of the elastic support body beyond a certain range. CONSTITUTION:An elastic support body 1 is interposed between a building 6 and a base 7. And upper and lower support members 2, 3, 4, 5 are connected integrally to the upper and lower sides of the body 1, so that the support members are fixed to the building 6 and the base 7, whereby vibration of the building 6 and base 7 is absorbed. Next, horizontal stoppers 10, 11 are disposed beforehand on the outer circumferential surface of the body 1 so as to oppose the members 2, 3, 4, 5. By this method, the body 1 is prevented from horizontally moving beyond a certain range due to contraction following an earthquake and temperature changes so that a break can be obviated. Further, loosening of a bolt 8 provided with a damping rubber 12 is prevented. And a floating stopper 14 is connected to the bolt. As a result, the building 6 can be supported at low cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for supporting structures such as bridges and buildings on the base side.

[0002]

2. Description of the Related Art Conventionally, to support a structure such as a bridge or a bidder on the base side, between the structure and the base,
A plurality of shoes made of elastic supports made by molding a plurality of layers of iron plates with a rubber material are interposed so as to suppress or isolate a building.

[0003] Further, since each of the above-mentioned troughs may be damaged if this building is largely displaced in the horizontal direction with respect to the base due to expansion and contraction due to an earthquake or temperature change, for example, conventionally, each of the above-mentioned troughs is damaged. Stoppers are attached to the building and the pedestal at positions other than the attachment site, respectively, and these stoppers prevent the building from being displaced in the horizontal direction over a certain range or more.

[0004]

However, each of the stoppers is formed as a member separate from each of the above-mentioned levers, and it is necessary to attach each of the above-mentioned stoppers to each of the above-mentioned building and the base separately from the above-mentioned respective levers. Therefore, there has been a problem that the construction man-hours increase, the construction period becomes long, and the construction cost becomes high.

The present invention has been made in view of the above problems, and an object thereof is to provide a bearing structure capable of bearing a building in a short construction period and at a low construction cost. Especially.

[0006]

In order to achieve the above object, the structure for supporting a building according to claim 1 of the present invention comprises:
An elastic support body interposed between the building and the base, and an upper support member and a lower support member for supporting the elastic support body on the side of the building and the base are provided so as to oppose these support members. And a pair of horizontal stoppers that prevent the elastic support from moving horizontally beyond a certain range.

According to another aspect of the present invention, there is provided a damping rubber laid between the lower support member and the base, and an anchor bolt for fixing the elastic support member to the base through the lower support member and the damping rubber. It has and.

Further, in claim 3, an anchor bolt for fixing the elastic support member to the base side and the anchor bolt and the building side are connected to each other to prevent the building from floating from the base. It is equipped with a float stop.

Further, in the present invention, the floating stopper is fastened to the anchor bolt through the elastic washer.

Further, in the present invention, a rubber material is fixed to the outer periphery of the anchor bolt.

[0011]

According to the first aspect of the present invention, the elastic support absorbs the vibration of the building due to the fluctuation of the load or the vibration of the base due to the earthquake. When, for example, the structure is displaced in the horizontal direction relative to the base due to expansion and contraction due to an earthquake or temperature change, and when the elastic support is largely moved horizontally over a certain range, the structure is displaced. Since the horizontal stoppers are brought into contact with each other to prevent horizontal movement of the elastic support over a certain range or more, damage to the elastic support is prevented in advance. Further, since each of the stoppers is arranged in advance to face the upper support member and the lower support member around the outer periphery of the elastic support member, it is created at the same time when the support structure for the building is formed, The construction can be attached to the base side in a shorter construction period and at a lower construction cost as compared with the case where a stopper is separately assembled at a conventional work site.

According to a second aspect of the present invention, the stoppers come into contact with each other, and the horizontal displacement force that is about to be displaced further is absorbed between the anchor bolt and the damping rubber, and the stoppers are absorbed. It is possible to prevent breakage of the elastic support and to absorb the displacement of the building between the anchor bolt and the damping rubber even when the building tilts due to an earthquake or a load. Further, since the anchor bolt fixes the lower support member to the base side via the damping rubber, the elastic restoring force of the damping rubber can prevent the anchor bolt from loosening. Therefore, the elastic support can be reliably fixed to the base. Of course, the rise and fall rubber also has an effect of absorbing the vibration of the above-mentioned building or base.

Further, according to the third aspect of the present invention, the structure prevents the building from being lifted upward by the above-mentioned lifting prevention.
It can be reliably supported on the base. As the elastic support, for example, when a plurality of layers of iron plates are molded with a rubber material is used, the elastic support has a weak strength against the lift force caused by the lift of the building. It was used only for small and heavy buildings, but in the present invention, by preventing the elastic support from rising by the above-mentioned lifting stopper, it is possible to prevent damage due to the lift force of the elastic support in advance. Therefore, it becomes possible to use the elastic support even in a lightweight structure.

Further, according to claim 4, when the building is tilted due to an earthquake or a load, the elastic washer absorbs the displacement due to the tilt of the building and is generated in the building and the base. The stress can be suppressed.

Further, according to the fifth aspect, the rubber material provided on the outer periphery of the anchor bolt can absorb not only the vibration of the building or the base but also the displacement of the building in the horizontal direction and the lifting direction. Also, the above-mentioned stoppers come into contact with each other, and the displacement force that the structure tends to displace further can be absorbed, and the damages of these stoppers and the elastic support can be more reliably prevented. Moreover, even when the building is tilted due to an earthquake or a load, the displacement of the building can be more surely absorbed by the rubber material.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a bridge support structure as an example of a structure support structure for a building according to the present invention. In the embodiment shown in the figures, a plurality of iron plates 1a are vertically arranged at predetermined intervals to form a layered structure. The elastic support 1 having a cylindrical shape, which is arranged in the
Upper flange 2 and lower flange 3 on the top and bottom respectively
And are integrated by vulcanization or the like, and the sole plate 4 and the base plate 5 are joined to the upper and lower portions of each of the flanges 2 and 3 with bolts, and the bridge girder 6 is mounted on the sole plate 4, and The base plate 5 is fixed on a base 7 made of concrete. The upper flange 2 and the sole plate 4 constitute an upper support member, and the two 2 and 4 may be formed as an integral member. Further, the lower flange 3 and the base plate 5 constitute a lower support member, and may also be formed as an integral member.

An anchor bolt 8 is embedded in the base 7 in a state of partially projecting upward, and the base plate 5 is inserted into the upward projecting portion of the anchor bolt 8 so as to project upward from the base plate 5. The base plate 5 is fixed to the base 7 side by tightening the nut 9 on the end portion of the anchor bolt 8 described above. More specifically, a hole 71 is formed in the base 7, the hole 71 is filled, and a known non-shrinkable mortar material 72 is put in so as to cover a certain range of the upper surface of the base 7. The anchor bolt 8 is embedded via the mortar material 72 so that a part of the anchor bolt 8 projects above the mortar material 72. By fixing and supporting the anchor bolt 8 using the non-shrinkable mortar material 72, a gap is not generated between the mortar material 72 and the concrete material of the base 7 after the mortar material 72 is dried, Prevents deterioration of structural strength.

Further, as shown in FIG. 3, the upper flange 2 is formed in a disk shape having a diameter slightly larger than that of the elastic support 1, and the sole plate 4 and the sole plate 4 are formed on the upper surface side of the central portion thereof. A recess 21 for inserting a positioning boss BS used for positioning between the two is provided over a predetermined depth, and a plurality of through holes 22 are formed concentrically around the recess 21. . Further, the lower flange 3 is, similarly to the case of the upper flange 2, a recess 31 into which the positioning boss BS between the base plate 5 is inserted and a concentric circle centered on the recess 31. A plurality of through holes 32, and the recess 3
Since it is formed in the same shape as the upper flange 2 except that 1 is provided on the lower surface side, each reference numeral will be described together in FIG.

Further, as shown in FIG. 4, the sole plate 4 is formed in a square shape larger than the upper flange 2, and the positioning boss BS is inserted into the lower portion at the center of the sole plate 4. A recess 41 is provided, and this recess 41
Each concentric circle centered on the
A plurality of first screw holes 42 facing the second screw holes 42 are formed, and a first screw hole 42, which will be described later, is provided around the outer periphery of the first screw holes 42.
In order to fix the horizontal stopper, a plurality of sets of second screw holes 43 arranged as a set of three are formed, and further, at each corner of the sole plate 4, the sole plate 4 is provided on the bridge girder 6 side. A through hole 44 for fixing via a fixing bolt is formed.

Further, as shown in FIG. 5, the base plate 5 is formed in a larger square shape than the sole plate 4, and the positioning boss BS is inserted in the upper part at the center thereof. A recess 51 is provided, and a plurality of first screw holes 52 facing the respective through holes 32 provided in the lower flange 3 are formed in a radial outer peripheral portion around the recess 51, and the first screw In order to fix a second horizontal stopper, which will be described later, at a position radially outside the second screw hole 43 provided in the sole plate 4 on the outer periphery of the hole 52, a plurality of second sets arranged as a set of three second sets. A screw hole 53 is formed, and a through hole 54 through which the anchor bolt 8 embedded on the base 7 side is inserted is formed at each corner of the base plate 5.

Then, the sole plate 4 is placed on the upper side of the upper flange 2, and the positioning boss BS is inserted into the respective recesses 21 and 41 of the sole plate 4 so that the sole plate 4 and the sole plate 4 are overlapped with each other. The sole plate 4 is integrally connected to the upper flange 2 side by screwing a fixing bolt into the first screw hole 42 of No. 4. The base plate 5 is provided on the lower side of the lower flange 3.
Are stacked with the positioning boss BS inserted into the respective recesses 31 and 51, and the lower flange 3
By screwing the fixing bolt from the through hole 32 of the base plate 5 to the first screw hole 52 of the base plate 5,
Are integrally connected to the lower flange 3.

Also, a plurality of first horizontal stoppers 1 are provided on the lower surface side of the sole plate 4 in FIG.
0 is fixed, and a plurality of second horizontal stoppers 11 are provided around the outer periphery of the lower flange 3 on the upper surface side of the base plate 5 so as to face the first horizontal stoppers 10 at a predetermined interval.
To fix.

More specifically, the first horizontal stopper 1 described above
As shown in FIG. 6, 0 has a circular arc shape in its overall appearance, and has a mounting portion 10a on the sole plate 4 side and a circle protruding downward from the radial inner end side of the mounting portion 10a. An arcuate contact 10b is provided, and the mounting portion 10a is provided with three mounting holes 10c facing the respective second screw holes 43 provided on the sole plate 4 side.

The second horizontal stopper 11 is shown in FIG.
As with the first horizontal stopper 10, the overall appearance is formed in an arc shape, and a mounting portion 11a to the base plate 5 side and a projecting upward from the radially inner end side of the mounting portion 11a are provided. The mounting portion 11a is provided with three mounting holes 11c facing the respective second screw holes 53 provided on the base plate 5 side.

Then, as shown in FIG. 2, the mounting portion 10a of the first horizontal stopper 10 is fastened to the lower surface side of the sole plate 4 with a fixing bolt, and the second horizontal stopper 11 is attached.
The mounting portion 11a of is fastened to the upper surface side of the base plate 5 with a fixing bolt.

Furthermore, as described above, after the first and second horizontal stoppers 10 and 11 are assembled to the sole plate 4 and the base plate 5, the above-mentioned through hole 44 (FIG. 4) provided in the sole plate 4 is used to This bridge girder 6 is fixed to the sole plate 4 side by screwing a fixing bolt on the bridge girder 6 side, and the through hole 54 provided in the base plate 5 is inserted into the anchor bolt 8 extending from the base 7. Then, the base plate 5 is fixed to the base 7 side by tightening the nut 9 at the insertion end thereof.

When fixing the base plate 5 to the base 7 side, as shown in FIGS. 1 and 2, a plate-shaped damping rubber 12 and an adjusting plate 13 are arranged on the lower surface side of the base plate 5. The anchor bolt 8 is inserted through the damping rubber 12 and the adjusting plate 13 to the upper side of the through hole 54 provided in the base plate 5, and the nut 9 is screwed into the insertion end side of the base plate 5. It is elastically fixed to the base 7 side.

Further, the anchor bolt 8 and the sole plate 4 shown in FIG. 1 are connected by a plurality of lift stoppers 14 for preventing the bridge girder 6 from rising. As shown in FIGS. 8A and 8B, the floating stopper 14 includes a first member 14a located on the upper side and a second member 14b located on the lower side. A through hole 14c for fixing the sole plate 4 via a fixing bolt is formed, and a through hole 14d for inserting the anchor bolt 8 is formed on the second member 14b side. Further, the second member 14a is provided with a screw hole and the first member 14a is provided with an insertion hole, respectively.
The bolt 14e screwed in from the lower side is inserted into the first member 14a, and the retaining pin 14f is inserted into the insertion portion of the bolt 14e to prevent the bolt 14e from slipping off. 14b are connected to each other so as to be rotatable about the bolt 14e.

Then, the through hole 14 of the first member 14a.
By screwing a fixing bolt from c to the sole plate 4 and inserting the through hole 14d of the second member 14b into the upper side of the anchor bolt 8 and tightening the nut 9 at the insertion end, The elastic support 1 is prevented from being lifted upward through the first and second members 14a and 14b.

Further, an elastic washer 15 is inserted below the second member 14b of the floating stopper 14 shown in FIG.
The floating stopper 14 is fastened to the anchor bolt 8 via the washer 15.

As shown in FIG. 9, the elastic washer 15 has a rubber material 15a such as chloroprene rubber and a stainless plate 15b provided on the upper surface side of the rubber material 15a.
And a Teflon film 15c provided on the upper surface side of the rubber material 15a and a stainless plate 15d provided on the lower surface side of the rubber material 15a, and a through hole 15e for inserting the anchor bolt 8 is provided at the center. There is.

Further, a rubber material 16 having an uneven portion 82 on its outer surface is integrally joined by vulcanization or adhesion to the outer periphery of the bolt main body 81 embedded in the base 7 of the anchor bolt 8, and this rubber is used. The anchor bolt 8 is fixedly supported on the mortar material 72 via the material 16. The concavo-convex portion 82 is formed in a spiral shape around the bolt body 81.

When the bridge girder 6 is supported on the base 7 side as described above, the elastic support 1 absorbs the vibration of the bridge girder 6 due to the fluctuation of the load or the vibration of the base 7 due to the earthquake. Further, when the bridge girder 6 is displaced in the horizontal direction relative to the base 7 due to expansion and contraction due to an earthquake or temperature change, this displacement is absorbed to some extent by the elastic support 1. Then, when the displacement amount of the bridge girder 7 becomes large and the elastic support 1 largely moves horizontally over a certain range or more, the first and second horizontal stoppers 1
The contact of 10b and 11b for 0 and 11 with each other prevents horizontal movement of the elastic support 1 over a certain range, and therefore damage of the elastic support 1 can be prevented in advance.

The stoppers 10 and 11 are fixed to the sole plate 4 which constitutes the upper supporting member and the base plate 5 which constitutes the lower supporting member around the outer periphery of the elastic supporting member 1 so as to face each other in advance. Therefore, it is created at the same time as the formation of the bearing structure. Therefore, compared with the case where a stopper is separately installed at a site distant from the bearing structure at the work site, the bearing construction can be performed on the base 7 side of the bridge girder 6 at a low construction cost at a low construction cost. it can.

Furthermore, after the bridge girder 6 is largely displaced in the horizontal direction due to expansion and contraction due to an earthquake or temperature change, and the first and second horizontal stoppers 10 and 11 come into contact with each other,
The displacement force in the horizontal direction, which is about to be further displaced,
It is possible to absorb the elastic deformation of the damping rubber 12 with respect to the anchor bolt 8 to reliably prevent the stoppers 10 and 11 and the elastic support 1 from being damaged. Moreover, for example, the bridge girder 6 can be prevented by an earthquake or a load. Even when the bridge girder 6 is inclined with respect to the base 7, the displacement of the bridge girder 6 can be absorbed through the damping rubber 12. Thereby, the stress generated in the bridge girder 6 and the base 7 can be reduced.

Moreover, since the elastic restoring force of the damping rubber 12 can be applied to the nut 9, the nut 9 can be prevented from loosening, and the anchor bolt 8 can be prevented.
The damping rubber 12, that is, the base 7 of the elastic support 1.
It can also be securely fixed to the side. Of course, the rise and fall rubber also has an effect of absorbing the vibration of the bridge girder 6 or the base 7.

Further, the floating stopper 14 prevents the bridge girder 6 from being lifted upward. Therefore, when the above-mentioned mold body is used as the elastic support body 1, the elastic support body 1 has a weak strength against an upward lift force caused by the floating of the bridge girder 6, and therefore, in the conventional case,
It was used only for heavy-duty concrete bridges with a small amount of lifting, but by preventing the bridge girders 6 from rising by the lifting stoppers 14, without damaging the elastic support 1 due to the lifting force, It can be used even for lightweight steel bridges. Moreover,
The floating stopper 14 includes two first and second members 14
a, 14b and a bolt 1 for rotatably connecting both of them
4e and 4e, it is possible to absorb the positional deviation when the bridge girder 6 horizontally moves with respect to the base 7.

Further, since the floating stopper 14 is fastened to the anchor bolt 8 via the elastic washer 15, the displacement due to the inclination of the bridge girder 6 can be absorbed when the bridge girder 6 is inclined due to an earthquake or a load. . Thereby, the stress generated in the bridge girder 6 and the base 7 can be reduced.

Further, the rubber material 1 around the anchor bolt 8
6, the vibration of the bridge girder 6 or the base 7 and the displacement of the bridge girder 6 in the horizontal direction and the lifting direction can be absorbed,
After the bridge girder 6 is largely displaced in the horizontal direction and the first and second horizontal stoppers 10 and 11 are in contact with each other, the horizontal displacement force that is about to be further displaced can be absorbed, and each of the stoppers 10 can be absorbed. , 11 and the elastic support 1 can be more reliably prevented from being damaged. Moreover, even when the bridge girder 6 is tilted with respect to the base 7 due to an earthquake or a load, a large bending displacement applied to the anchor bolt 8 via the rising stopper 14 is absorbed via the rubber material 16 to allow the bridge girder and The stress generated in the base can be reduced. Further, since the uneven portion 82 of the rubber material 16 has a spiral shape,
When the mortar material 72 is poured into the hole 71 of the base 7, the mortar material is smoothly poured into the inner part of the hole 71 along the spiral uneven portion 82, so that workability is improved.

Although the supporting structure of the bridge is shown in the above embodiment,
The invention can also be applied to buildings, such as the building structure of a building.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an example of a building support structure according to the present invention.

FIG. 2 is a partially cutaway perspective view showing a main part of the bearing structure.

FIG. 3 is a plan view of an upper flange of the bearing structure.

FIG. 4 is a plan view of a sole plate of the bearing structure.

FIG. 5 is a plan view of a base plate of the bearing structure.

FIG. 6 is a plan view of a first horizontal stopper of the bearing structure.

FIG. 7 is a plan view of a second horizontal stopper of the bearing structure.

FIG. 8A is a plan view showing an anti-lifting member of the support structure, and FIG. 8B is a developed side view showing the anti-lifting member.

FIG. 9 is a side sectional view of an elastic washer of the bearing structure.

[Explanation of symbols]

1 ... Elastic support, 2, 4 ... Upper support member, 3, 5 ... Lower support member, 6 ... Bridge girder (building), 7 ... Base, 8 ... Anchor bolt, 10, 11 ... Horizontal stopper, 12 ... Damping Rubber, 14 ... Anti-floating, 15 ... Elastic washer, 16
… Rubber material.

Claims (5)

[Claims] 1. A support structure for supporting a building on a base side, the elastic support being interposed between the building and the base,
An upper support member and a lower support member for supporting the elastic support member on the side of the building and the base, and a pair of opposing support member members for preventing horizontal movement of the elastic support member beyond a certain range. Structure support structure with a horizontal stopper. 2. The damping rubber laid between the lower support member and the base, and the anchor for fixing the elastic support member to the base side through the lower support member and the damping rubber. A bearing structure for a structure that includes bolts. 3. The anchor bolt according to claim 1, wherein the anchor bolt fixes the elastic support member to the base side, and the anchor bolt is connected to the building side to prevent the building from rising from the base. A supporting structure for a building with a stop. 4. The structure for supporting a building according to claim 3, wherein the floating stopper is fastened to an anchor bolt through an elastic washer. 5. The structure for supporting a building according to claim 2, 3 or 4, wherein a rubber material is fixed to the outer periphery of the anchor bolt.