JPS64416Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an anchored elastic support for elastically supporting a bridge.

Conventionally, an elastic support with an anchor that has an anchor rod embedded in bridge concrete has a structure in which a steel plate to which a female threaded tube into which the anchor rod is screwed is fixed, is integrally fixed to the upper surface of a rubber support by baking. are known.

However, in the case of an elastic support with an anchor of this structure, the high heat generated when the steel plate is fixed to the rubber support by baking causes the threads of the female thread tube to become misaligned, making it difficult to screw the anchor rod into the female thread tube. There are some things I can't do.

The object of the present invention is to provide an anchored elastic support that can solve the above-mentioned problems.

Next, the present invention will be explained in detail with reference to the drawings.

1 to 7 show an elastic support with an anchor according to a first embodiment of the present invention, in which a rubber support 1 with a steel ring 12 embedded in the inner periphery is placed on the lower surface of the rubber support 1 at the center of the lower surface. A large circular engagement protrusion 1
A steel locking plate 14 having a locking plate 14 is fixed by baking, that is, adhesion during rubber vulcanization (pressure heating), and an engaging recess 15 is fitted into the protrusion 13.
The steel catch 3 is composed of a steel plate catch main body 16 having a large circular through hole in the center and a steel plate cover 17 fixed to the catch main body 16 by welding. The seat 3 is provided with a plurality of through holes in the recess 15 and the surrounding area, and a female threaded steel tube 18 is fitted into the through hole and fixed by welding.
Bolt insertion holes 20 are provided at both ends of the locking plate 14, which is screwed to the upper end of the locking plate 14 and protrudes from the side surface of the rubber support 1. 21 is screwed into a screw hole provided at the end of the seat 3.

A steel locking plate 5 having a large circular engagement protrusion 4 at the center of the upper surface is integrally fixed to the upper surface of the rubber support 1 by baking, and an engagement recess into which the protrusion 4 is fitted. Steel support plate 7 with 6
is composed of a steel plate support plate main body 22 having a large circular through hole in the center and a steel plate cover 23 fixed to the support plate main body 22 by welding, and the support plate has a recess 6. A plurality of through holes are provided around the periphery, and a female steel cylinder 9 is fitted into the through hole and fixed by welding, and the lower end of the anchor rod 11 is screwed and connected to the female screw cylinder 9. Bolt insertion holes 24 are provided at both ends of the locking plate 5 that protrudes from the side surface of the rubber support 1, and the coupling bolts 8 inserted into the holes are provided at the ends of the support plate 7. It is screwed into the screw hole.

FIG. 8 shows an example of the use of the anchored elastic support of the first embodiment, in which a lower anchor rod 19 and a protrusion of a female threaded cylinder 18 are attached to a support base 2 such as a concrete abutment or a bridge pier. is buried,
The catch seat 3 is placed and fixed on the support base 2, and then bridge concrete 10 is poured, and the upper anchor rod 11 and the protruding part of the female threaded tube 9 are buried in the bridge concrete 10, and the support plate 7 is placed. Fixed to the underside of the bridge.

In the case of the first embodiment, when the rubber of the rubber support 1 becomes aged or damaged, by jacking up the bridge, the locking plate 5 and the locking plate 14 fixed to the rubber support 1 and its upper and lower surfaces can be removed. The rubber support unit consisting of can be easily replaced.

In addition, in order to facilitate fitting, the protrusions 4, 1
3 and the recesses 6 and 15 may be tapered.

9 to 13 show an elastic support with an anchor according to a second embodiment of the present invention, in which the middle part of a steel plate seat 3 is fixed integrally to the lower surface of a rubber support 1 by baking. Although anchor bolt insertion holes 25 are provided at both ends of the seat 3, the other configurations are the same as in the first embodiment.

FIG. 14 shows an example of use of the anchored elastic support of the second embodiment, in which an anchor bolt 26 inserted into the anchor bolt insertion hole 25 is buried in the concrete support 2, and The seat 3 is tightened and fixed to the upper surface of the support base 3 by a nut 27 screwed into the anchor bolt 26, but the state of fixation between the anchored elastic support and the bridge is the same as in the case of Fig. 8. .

According to the present invention, since the metal locking plate 5 having the engagement protrusion 4, the metal support plate 7 having the engagement recess 6 and the internally threaded cylinder are configured separately in advance, the rubber support 1 When fixing the locking plate 5 and the locking plate 5 by baking, the support plate 7 can be removed. Therefore, it is possible to solve the problem of the threads of the female thread cylinder 9 becoming misaligned due to the high heat during baking, and it is possible to When pouring concrete 10,
Since the support plate 7 is fixed to the locking plate 5 by the bolts 8, the support plate 7 is fixed to the locking plate 5 due to vibration.
Furthermore, there is no fear that the engagement recess 6 of the metal support plate 7 fixed to the bridge by the anchor rod 11 and the engagement protrusion 4 of the metal locking plate 5 fixed to the upper surface of the rubber support 1. are fitted into each other, the engagement strength between the bridge and the rubber support 1 against horizontal force can be significantly increased, and the engagement protrusion 4 provided on the locking plate 5 and the support plate 7 Since only one engaging recess 6 is provided, effects such as a simple structure can be obtained.

[Brief explanation of the drawing]

1 to 7 show a first embodiment of the present invention, in which FIG. 1 is a perspective view of an elastic support with an anchor, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG.
Figure 3 is an exploded perspective view of an elastic support with an anchor;
Figure 4 is a plan view of the rubber support to which the locking plate is fixed;
FIG. 5 is a partially longitudinal side view thereof, FIG. 6 is a plan view of the support plate with a female threaded cylinder, and FIG. 7 is a partially longitudinal side view thereof. FIG. 8 is a partially longitudinal side view showing an example of use of the anchored elastic support of the first embodiment.
9 to 13 show a second embodiment of the present invention, in which FIG. 9 is a perspective view of an elastic support with an anchor, FIG. 10 is a plan view thereof, and FIG. FIG. 12 is a plan view of the locking plate and the rubber support with the seat, and FIG. 13 is a partially vertical side view thereof. FIG. 14 is a partially longitudinal side view showing an example of use of the anchored elastic support of the second embodiment. In the figure, 1 is a rubber support, 2 is a support stand, and 3
is a steel seat, 4 is an engagement protrusion, 5 is a metal locking plate, 6 is an engagement recess, 7 is a metal support plate, 8 is a bolt, 9 is a female thread cylinder, 10 is bridge concrete,
11 is an anchor rod, 12 is a steel ring, 13 is an engagement protrusion, 14 is a steel locking plate, 15 is an engagement recess, 18 is a female steel cylinder, 19 is an anchor rod, 2
1 is a connecting bolt.

Claims (1)

[Scope of utility model registration request] In an elastic support body in which a steel seat 3 fixed to a support base 2 is fixed to the lower part of the rubber support body 1, a metal locking plate 5 having an engagement protrusion 4 at the center of the upper surface is made of rubber. A metal support plate 7, which is integrally fixed to the upper surface of the support body 1 and has an engagement recess 6 fitted into the protrusion 4, is placed on the locking plate 5,
The ends of the locking plate 5 and the support plate 7 are connected by bolts 8, and the lower end of the anchor rod 11 embedded in the bridge concrete 10 is screwed into a plurality of internally threaded cylinders 9 fixed to the support plate 7. An anchored elastic support characterized by being connected.