JPH08158317A - Bridge elastic supporting device having rubber supports composed flatly - Google Patents

Abstract

PURPOSE: To convey and install the rubber materials to an abutment and manufacture and test easily by laying out a plurality of rubber supports so that they may approach each other and fixing upper support plates and lower supporting plats thus installed over upper metal plates and lower metal plates in each adjacent rubber support. CONSTITUTION: A lower lock projection 3 is fixed with the bottom of a lower metal plate 2 while the lower part is fitted in a lower lock hole 5 of a lower supporting plate 4. Then, a rubber layer 6 is fixed with the top of the lower metal plate 2. An upper metal plate 8 having an upper lock projection 7 is fixed with the top of the rubber layer 6. The upper lock projection 7 of the upper metal plate 8 is fitted in an upper engagement hole 10 of an upper support plate 9. A plurality of bridge support elastic supports 11 are mounted on the same surface side by side in such a way that they may approach each other. The upper metal plate 2 is loaded on the lower supporting plate 4 of each elastic support 11. Then, the lower lock projection 3 of the lower metal plate 2 is fitted in the lower lock hole 5 of the lower supporting plate 4. The upper lock projection 7 of the upper metal plate 2 is fitted in the upper lock hole 10 of the upper metal plate 8, thereby constituting a bridge supporting device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing which is reduced in weight for convenience in manufacturing, testing, etc., and for weight reduction, when a large reaction force is applied to the bearing without using a large rubber bearing. Things.

[0002]

2. Description of the Related Art A large-sized rubber bearing must be used in a bridge bearing device for supporting a large load.

[0003]

A large rubber bearing is
Due to its heavy weight, it is cumbersome to carry, manufacture and test the product.

[0004]

In order to advantageously solve the above-mentioned problems, in a bridge elastic bearing device having a plurality of planarly supported rubber bearings of the present invention, it is fixed to the abutment 1 or a pier. The lower locking projection 3 is fixed to the lower surface of the lower metal plate 2 to be formed, and the lower part of the lower locking projection 3 is fitted into the lower locking hole 5 provided in the lower support plate 4. The upper metal plate 8 having the upper locking projections 7 is fixed to the upper surface of the rubber layer 6 fixed to the upper surface of 2, and the upper locking projections 7 provided on the upper metal plate 8 of the rubber layer 6 are Upper support plate 9
In the bridge support device having a bridge supporting elastic bearing body 11 fitted in the upper engagement hole 10 in the above, a plurality of bridge supporting elastic bearing bodies 11 are provided so as to be closely arranged on the same plane, and each bridge supporting body The lower locking projections 3 of the lower metal plate 2 placed on the lower support plate 4 of the elastic support 11 are fitted into the lower locking holes 5 of the lower support plate 4, and the upper portion provided on the upper metal plate 8 is provided. It is configured by fitting into the engagement hole 10. Further, in the invention of claim 2, the lower support plate 4
Is placed on a lower support 13 having a lower engagement hole 12, and the lower engagement hole 12 in the lower support 13 is
The upper engagement hole 17 of the upper support 15 mounted on the upper surface of the upper support plate 9 is fitted into the engagement protrusion 16 of the upper support plate 9. Then, the lower support 13 is fixed to the abutment or pier 1, and the upper support 15 is fixed to the bridge 18.

[0005]

FIG. 1 to FIG. 3 show a bridge elastic bearing device having a plurality of planarly compounded rubber bearing members according to a first embodiment of the present invention. The lower metal plate 2 having the lower locking projections 3 is integrally fixed to the lower surface of the lower metal plate 2 by baking, and the lower locking projections 3 are two sheets. The lower support plate 4 on which the lower metal plate 2 is placed is fitted into a lower locking hole 5, and the lower support plate 4 is provided with a lower engagement projection at the center of an intermediate portion of the adjacent lower metal plate 2. 14 is provided integrally, and the lower metal plate 2 having the lower locking projections 3;
A lower support plate 4 having a lower locking hole 5 is formed.

An upper metal plate 8 is integrally fixed on the upper surface of the rubber layer 6 by baking or the like, and an upper support plate 9 having an upper engagement hole 10 at the center of the two upper metal plates 8 is placed. Then, the upper engagement holes 10 in the upper support plate 9 are fitted into the upper locking projections 7 in the upper metal plate 8. An upper support 15 having an upper engagement hole 17 is placed on the upper surface of the upper support plate 9, and the upper support 15 is fitted into the upper engagement protrusion 16.

9 to 13, a plurality of vertical ribs 19 extending in the vertical direction are provided on the lower surface of the lower support 13;
A plurality of lateral ribs 20 extending in the lateral direction are provided integrally, and a number of lower anchor members 21 are screwed or fixed to the lower surface of the lower support base 13 by welding or by welding. Is buried in the concrete for the abutment or pier, and the lower support 13 is fixed to the abutment or pier.

A number of upper anchor members 22 are screwed or fixed to the upper surface of the lower engaging projections 14 by screwing or welding, and the cover plate 2 has a protruding portion at the left and right ends.
3 is fixed to the upper end surface of the upper support base 15 by welding, and a cutout step portion 24 is provided at an intermediate portion of the upper support base 15 in the bridge longitudinal direction, and the cutout step portion 24 has a substantially L-shaped fixation. The horizontal plate of the clip 25 is brought into contact with the clip 25, and the clip 25 is fixed to the holding member 29 by the bolts 26. Further, the locking pieces 27 provided on the lower portion of the fixing clip 25 are provided on both left and right sides of the lower support base 13. The holding member 29 is fitted in a slit 30 extending in the horizontal direction. Also, a number of lower anchor members 21 are buried in the abutment 1, and concrete for bridge is cast so as to reach the lower abutment 13, and an upper abutment 15 having an upper anchor member 22 and a cover plate 23 is formed. It is fixed to the bridge 18.

FIG. 14 shows a state in which the rubber layer 6 is subjected to shear deformation. An engaging portion 33 is provided on one side of the lower support 13 so as to protrude upward. A jack 35 is attached to a jack support fitting 34 that engages with the rubber layer 6, and the rubber layer 6 is subjected to pre-shear deformation on the side opposite to the contraction direction of the bridge 18 as shown in FIG. Next, concrete for the bridge is cast to build the bridge 18, and when the contraction of the bridge 18 is completed, FIG.
It becomes the state of.

When practicing the present invention, three bridge bearing elastic supports 11 may be arranged in close proximity so as to be lined up in series, or, as shown in FIGS. 4-8, four bridge bearing supports. The elastic supports 11 may be arranged on the front and rear sides and the left and right sides.

[0011]

According to the present invention, the following effects can be obtained because of the configuration described above. Since the elastic bearing body 11 for bridge support is small and lightweight, the following effects can be obtained. That is, transportation, erection on the abutment 1, manufacturing and testing can be easily performed. Moreover, a small bearing 1
One can be compounded in multiple planes and function like a large single bearing. According to the invention described in claim 2, the elastic support 11 for bridge support can be firmly supported so as not to move.

[Brief description of drawings]

FIG. 1 is a plan view showing a bridge elastic support device having a plurality of planarly combined rubber supports according to a first embodiment of the present invention.

FIG. 2 is a side view showing a bridge elastic bearing device having a plurality of planarly compounded rubber bearings according to the first embodiment.

FIG. 3 is an enlarged sectional view taken along line AA of the bridge elastic bearing device having a plurality of rubber bearing members combined in a plane according to the first embodiment.

FIG. 4 is a plan view illustrating a bridge elastic bearing device having a plurality of rubber bearing bodies combined in a plane according to a second embodiment of the present invention.

FIG. 5 is a side view showing a bridge elastic bearing device having a plurality of rubber bearing bodies combined in a plane according to a second embodiment of the present invention.

6 is an enlarged cross-sectional view taken along the line BB of FIG.

7 is a cross-sectional view taken along the line CC of FIG.

8 is a cross-sectional view taken along line DD of FIG.

FIG. 9 is a plan view showing the device shown in the first embodiment of the present invention.

FIG. 10 is a side view of FIG. 9.

11 is a cross-sectional view taken along the line EE of FIG.

FIG. 12 is a front view of a rubber bearing.

FIG. 13 is a front view of a rubber bearing.

FIG. 14 is a longitudinal sectional side view showing a state in which a shear deformation jack is engaged with a rubber bearing body.

FIG. 15 is a longitudinal sectional side view showing a state in which a rubber layer in a rubber bearing body is subjected to shear deformation.

FIG. 16 is a longitudinal sectional side view showing a state where a rubber bearing body is attached to an abutment and a bridge girder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Abutment or pier 2 Lower metal plate 3 Lower locking projection 4 Lower support plate 5 Lower locking hole 6 Rubber layer 7 Upper locking projection 8 Upper metal plate 9 Upper support plate 10 Upper engaging hole 11 Elastic support body for bridge support DESCRIPTION OF SYMBOLS 12 Lower engaging hole 13 Lower supporting base 14 Lower engaging projection 15 Upper supporting base 16 Upper engaging projection 17 Upper engaging hole 18 Bridge 19 Vertical rib 20 Horizontal rib 21 Lower anchor member 22 Upper anchor member 23 Cover plate 24 Notch step Part 25 Fixing clip 26 Bolt 27 Locking piece 29 Holding member 30 Slit 33 Engagement part 34 Jack support fitting 35 Jack

Claims (2)

[Claims] 1. A lower locking device comprising: a lower locking projection fixed to a lower surface of a lower metal plate fixed to an abutment or a pier; and a lower portion of the lower locking projection provided on a lower support plate. A rubber layer 6 fitted in the hole 5 and fixed on the upper surface of the lower metal plate 2
An upper metal plate 8 having an upper locking projection 7 is fixed to the upper surface of the upper metal plate 8, and the upper locking projection 7 provided on the upper metal plate 8 of the rubber layer 6 is fixed to the upper engagement hole 10 in the upper support plate 9. In a bridge support device having a bridge supporting elastic bearing body 11 fitted to a plurality of bridge supporting elastic supports 11, a plurality of bridge supporting elastic supporting bodies 11 are provided so as to be closely arranged on the same plane, and a lower portion of each bridge supporting elastic supporting body 11 is provided. The lower locking projection 3 of the lower metal plate 2 placed on the support plate 4 is fitted into the lower locking hole 5 of the lower support plate 4, and the upper locking projection 7 of the upper metal plate 8 is A bridge elastic bearing device having a plurality of planarly compounded rubber bearing members configured to be fitted in upper engagement holes 10 provided in a plate 8. 2. The lower surface of the lower support plate 4 is placed on a lower support 13 having a lower engagement hole 12, and the lower support 13 is
The lower engagement hole 12 of the lower support plate 4 is fitted to the lower engagement protrusion 14 of the lower support plate 4, and the upper engagement hole 17 of the upper support 15 mounted on the upper surface of the upper support plate 9 is connected to the upper support plate 9 and the lower support 1
The bridge elastic bearing device having a plurality of planarly compounded rubber bearings according to claim 1, wherein 3 is fixed to the abutment or pier 1 and said upper bearing 15 is fixed to the bridge 18.