JPH07102526A - Upper structure-bearing device equipped with replaceable rubber bearing - Google Patents

Abstract

PURPOSE:To make easy replacement possible for a rubber bearing by moving an upper structure slightly upward. CONSTITUTION:A plurality of lower bolts 5 are inserted from above to peripheral parts on a lower metal plate 2 of a rubber bearing 4 that is composed of a rubber layer 1, the lower metal plate 2 and an upper metal plate 3 attached respectively to the lower and upper parts of the rubber layer. Then, the lower bolts 5 are screwed down to lower tapped members 6 equipped with anchorage members that are fitted to the underside of the rubber bearing 4. The lower tapped members 6 with the anchorage members are buried in a lower structure 7. A plurality of upper bolts 8 are inserted from below to peripheral parts on the upper metal plate 3, and the upper bolts 8 are screwed down to upper tapped members 9 equipped with anchorage members that are fitted to the upper side of the rubber bearing 4, and the upper tapped members 9 are buried in an upper structure 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superstructure bearing device having a rubber bearing which can be easily replaced.

[0002]

2. Description of the Related Art Conventionally, as an upper structure supporting device having a rubber supporting member, one disclosed in Japanese Utility Model Publication No. 3-42088 is known.

[0003]

In the case of the above-mentioned conventional upper structure bearing device having a rubber bearing, the upper part of the anchor bar is fitted in the base plate and the lower part of the anchor bar is fitted in the upper shoe. Therefore, when exchanging the rubber bearing, it is necessary to extract the upper structure from the base plate as well as move the upper structure up to the extent that the lower part of the anchor bar can be extracted from the upper shoe, Therefore, the amount of upward movement of the upper structure is increased, the stroke of the jack for raising the upper structure is increased, and it takes a long time to replace the rubber bearing.

[0004]

In order to advantageously solve the above-mentioned problems, in the upper structure supporting device having the easily replaceable rubber supporting member of the present invention, the rubber layer 1 and the lower and upper parts thereof are fixed. A plurality of lower bolts 5 are inserted from above around the lower metal plate 2 in the rubber support 4 composed of the lower metal plate 2 and the upper metal plate 3, and the lower bolts 5 are attached to the lower surface of the rubber support 4. The lower female screw member 6 with an anchor member that is abutted is screwed, the lower female screw member 6 with an anchor member is embedded in the lower structure 7, and a plurality of upper bolts 8 are provided around the upper metal plate 3 from below. The upper bolt 8 is inserted and screwed into the upper female screw member 9 with an anchor member that is brought into contact with the upper surface of the rubber bearing 4, and the upper female screw member 9 with an anchor member is embedded in the upper structure 10.

[0005]

1 to 6 show an embodiment of the present invention, in which a rubber layer 1, a lower metal plate 2 fixed to the lower part thereof, and an upper metal plate 3 fixed to the upper part of the rubber layer 1 are shown. A rubber bearing 4 is formed by and the 4 around the lower metal plate 2 is formed.
Through holes 11 for bolt insertion are provided at the corners, through holes 12 for bolt insertion are provided at the four corners around the upper metal plate 3, and a rubber coating 13 is provided on the lower surface and the peripheral surface of the lower metal plate 2. Are integrally provided, and a rubber coating 14 is integrally provided on the upper surface and the peripheral surface of the upper metal plate 3.

Lower recesses 1 are formed in intermediate portions in the longitudinal direction of the upper structure on both sides of the lower metal plate 2 in the width direction of the upper structure.
5, the upper structure 1 in the lower recess 15 thereof is provided.
0 is integrally provided with an engaging piece 16 projecting toward the other side of the lower recess 15 at the upper end in the longitudinal direction of 0, and the upper structure on both sides of the upper metal plate 3 in the upper structure width direction. An upper recess 17 is provided at an intermediate portion in the longitudinal direction.

Through holes 1 for inserting respective bolts in the lower metal plate 2.
1, a lower bolt 5 is inserted from above, and the lower bolt 5 is screwed onto an upper portion of a female screw member 19 which is fixed by welding by screwing a flanged anchor member 18 to the lower portion.
The upper surface of the female screw member 19 is pressed against the rubber coating 13 provided on the lower surface of the lower metal plate 2. Further, the anchor member 18 and the female screw member 19 constitute a lower female screw member 6 with an anchor member.

Through holes 1 for inserting respective bolts in the upper metal plate 3
2, an upper bolt 8 is inserted from below, and the upper bolt 8 is screwed to a lower portion of a female screw member 21 having a flanged anchor member 20 screwed onto the upper portion and fixed by welding.
The lower surface of the female screw member 21 is pressed against the rubber coating 14 provided on the upper surface of the upper metal plate 3. The anchor member 20 and the female screw member 21 constitute an upper female screw member 9 with an anchor member.

The rubber bearing 4 to which the lower female screw member 6 with an anchor member and the upper female screw member 9 with an anchor member, which are constructed as described above, are fixed, is formed on the upper portion of the lower structure 7 and the lower portion of the end portion of the upper structure 10. And the lower portion of the shear deformation member 22 is fitted into the lower recess 15 of the lower metal plate 2 and fixed by a plurality of bolts 23. The engaging protrusion 24 provided on the intermediate side of the bearing is engaged with the lower portion of the locking piece 16 of the lower metal plate 2 and is provided on the end portion side of the upper structure 10 under the shear deformation member 22. The protrusion 25 is engaged with the upper surface of the lower metal plate 2, and, as shown in FIG. 1, in a state where the rubber layer 1 is sheared and deformed in the factory, with the side surface of the upper metal plate 3 on the intermediate side of the upper structure 10. , Between the intermediate end face of the upper structure 10 at the top of the deformable member 22, L-shaped spacer 26 is interposed.

Next, as shown in FIG. 4, the lower female screw member 6 with an anchor member is inserted into the recess 27 provided in the lower structure 7, and the lower structure 7 and the lower metal plate 2 are surrounded by the recess 27. A level adjusting spacer 28 made of a large number of metal plates is interposed between them, and concrete 29 is filled in the lower part of the lower metal plate 2 and in the recess 27.

After the concrete 29 is hardened, concrete 33 of the upper structure 10 is placed as shown in FIG. 5, and after the concrete 33 is hardened, as shown in FIG. 26 is pushed out, the bolt 23 is removed, and the shear deformation member 22 is removed to obtain the state shown in FIG.

When replacing the rubber bearing 4, the lower bolts 5 are unscrewed from the female screw member 19, the upper bolts 8 are unscrewed from the female screw member 21, and then the upper structure 1
After moving 0 by a very small amount, the rubber support 4 is pulled laterally and removed.

Next, the rubber bearing 4 which has been previously sheared and deformed
Is inserted between the lower structure 7 and the upper structure 10, and then the upper structure 10 is lowered. Then, the lower bolt 5 is screwed into the female screw member 19, and the upper bolt 8 is screwed into the female screw member 21. And then remove the spacer 26,
The bolt 23 is removed and the shear deformation member 22 is removed.

[0014]

According to the present invention, a plurality of rubber supporting members 4 each having a lower metal plate 2 and an upper metal plate 3 fixed to the lower and upper portions of the rubber layer 1 are provided around the lower metal plate 2. The lower bolt 5 is inserted from above, the lower bolt 5 is screwed into a lower female screw member 6 with an anchor member that is in contact with the lower surface of the rubber support 4, and the lower female screw member 6 with an anchor member is attached to the lower structure. 7, and a plurality of upper bolts 8 are inserted around the upper metal plate 3 from below, and the upper bolts 8 are attached to an upper female screw member 9 with an anchor member that is in contact with the upper surface of the rubber bearing 4. Since the upper female screw member 9 with an anchor member is embedded in the upper structure 10 by screwing, when it is necessary to replace the rubber bearing 4, after the lower bolt 5 and the upper bolt 8 are unscrewed,
By slightly moving the upper structure 10 upward, the rubber support 4 can be easily replaced.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view showing an upper structure support device having an easily replaceable rubber support used in an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a vertical sectional side view showing a part of FIG. 1 in an enlarged manner.

FIG. 4 is a vertical cross-sectional side view showing a state in which an upper structure support device used in an embodiment of the present invention is installed at a predetermined position of a lower structure.

FIG. 5 is a vertical cross-sectional side view showing an upper structure support device having an easily replaceable rubber support according to an embodiment of the present invention.

FIG. 6 is a plan view showing a shear deformation holding spacer used in an embodiment of the present invention.

[Explanation of symbols]

 1 Rubber Layer 2 Lower Metal Plate 3 Upper Metal Plate 4 Rubber Bearing 5 Lower Bolt 6 Lower Female Screw Member with Anchor Member 7 Lower Structure 8 Upper Bolt 9 Upper Female Screw Member with Anchor Member 10 Upper Structure 11 Bolt Insertion Through Hole 12 Through hole for bolt insertion 13 Rubber coating 14 Rubber coating 15 Lower recess 16 Locking piece 17 Upper recess 18 Anchor member with flange 19 Female screw member 20 Anchor member with flange 21 Female screw member 22 Shear deforming member 23 Bolt 24 Engaging protrusion 25 Bearing Protrusion 26 Spacer 27 Recess 28 Level adjustment spacer 29 Concrete 30 Concrete 31 Jack engaging arm 32 Jack 33 Concrete

Claims (1)

[Claims] 1. A plurality of lower bolts 5 are provided around the lower metal plate 2 in a rubber bearing 4 composed of a rubber layer 1 and a lower metal plate 2 and an upper metal plate 3 fixed to the lower and upper parts thereof from above. The lower bolt 5 is inserted and screwed into a lower female screw member 6 with an anchor member that is in contact with the lower surface of the rubber bearing 4, and the lower female screw member 6 with an anchor member is embedded in the lower structure 7, A plurality of upper bolts 8 are inserted from the lower side around the upper metal plate 3, and the upper bolts 8 are screwed into an upper female screw member 9 with an anchor member that is in contact with the upper surface of the rubber bearing 4, and the anchor An upper structure support device having an easily replaceable rubber support in which an upper female screw member 9 with a member is embedded in an upper structure 10.