KR19980056693U - Earthquake proofing device - Google Patents

Abstract

The present invention relates to a bridge device that supports the deformation of the top plate between the top plate and the lower piers during the construction of the bridge, in particular, seismic bridge device that can offset or reduce even if the top plate repeatedly causes a large deformation due to earthquakes, etc. Is about devising.

The present invention is a bridge device consisting of an upper plate (1) to be mounted on the upper plate of the bridge and the lower plate (2) of the enemy seated on the piers and other devices corresponding to the load support and deformation; A bracket 41 attached to the upper and lower plates 1 and 2 spaced apart slightly from both sides or four sides of the pad 3, and a set of brackets 41 and 41 corresponding to the upper and lower plates 1 and 2, respectively. It is characterized in that the shock absorber (4) made of an elastic material (42), which is partially inserted through and partially inserted into the support bolts 43, which are screwed to each of the brackets (41, 41) between, the conventional It is easy to use because it can be easily applied to the bridge device, and it is economical because the additional cost is low, and if it is within the fracture deformation of the bridge, the seismic capacity is sufficient to offset the force appropriately under the lateral deformation force of any earthquake. It is a useful and effective design that can be used.

Description

Earthquake proofing device

1 is a configuration diagram of a conventional design,

2 is a cross-sectional view of a conventional design,

3 is a cross-sectional view of the configuration state of the present invention,

4 is an excerpt configuration state only the main part of the present invention,

5 is another configuration diagram of the main part of the present invention.

* Description of the symbols for the main parts of the drawings *

1. Upper plate

11.Anchor hole 12. Anchor bolt 13. stopper

2. Bottom plate

21.Anchor hole 22. Anchor Bolts 23. Stopper 24. support

3. Pad

31. Compressed Rubber Gusset

4. Shock absorber

41.Bracket 42. Elastic 421. Lumbar 422.protrusion

43. Support bolts 44. Washer 45. nut

5. Bearing device

51.Smooth plate 52. Bolso resin plate 53. Support protrusion

The present invention relates to a bridge device that supports the deformation of the top plate between the top plate and the lower piers when building a bridge, in particular, seismic bridge device that can offset or reduce even if the top plate repeatedly causes a large deformation due to earthquake, etc. Is about devising.

The elastic bearings for bridges in the bridge arrangement are shown in Figs. 1 (A) and 2 (A), and the port bearings are shown in Figs. 1 (C) and 2 (B). A pad 3 or a bearing device disposed between the upper plate 1 mounted on the upper plate of the enemy and the lower plate 2 mounted on the piers and the upper and lower plates 1 and 2 to support the compressive and deformation forces. 5), wherein stoppers 13 and 23 of a predetermined shape are attached to the upper and lower plates 1 and 2 as needed (see (A) and (B) in FIG. 1) to be used as a fixed end or a movable end. do.

The conventional design consisting of the above configuration is to reiterate as an example of the bridge bearing elastic support and photo bearing (Pot Bearing) as an example, the upper and lower plates (1, 2) respectively installed on the upper plate and the piers, respectively, to the displacement of the upper plate In accordance with the movement relative to each other, by the pad (3) bearing device (5) placed in the center to support the deflection force and the load of the upper plate to the pier side to be appropriately adapted to the expected load and deformation force under normal circumstances. In addition, according to the position of the pier where the bridge device is seated, the elastic bearing is fixed end (first end (A)) and longitudinal free end (first view (B)). It can be used as a fixed end added to the enemy, but when a large deformation force such as a support or the like, the upper and lower plates (1, 2) are displaced due to excessive displacement or the pad (3) Due to an abnormal action such as separation, the function of the above-described bridge device is not sufficiently exhibited, and in addition, since the deformation force due to an earthquake or the like is repeatedly acted by the transverse deformation force, the reinforcing plate 32 is inserted in the elastic bearing type bridge device. 31) the pad 3 is easily deteriorated, or the durability of the pad 3 is reduced rapidly due to peeling between the reinforcing plate 32 and the compression rubber 31, and in the photo-bearing type staggering device, deformation of the fluororesin plate 52 is broken. There was a problem such as not being accepted.

Particularly, in recent years, earthquakes that can be felt by humans in our inland region are so frequent that the claim that our country is no longer the blind spot of earthquakes is gaining strength, so earthquake-resistant design of rescue is indispensable. In order to meet the demands of such construction and civil engineering, the present invention has been completed to provide a teaching device that can adequately accommodate excessive deformation force, which can attenuate the relative lateral movement between the upper and lower plates in the conventional teaching device. It is made by mounting the shock absorber which will be described in more detail according to the drawings as follows.

(A) of FIG. 3 is a half cross-sectional view showing the configuration of the present invention applied to the elastic support for bridges (not shown since the other half is symmetrical), and (B) of FIG. 3 shows the present invention in a photo bearing. Half lateral cross-sectional view showing the installed and applied configuration, Figure 4 is an enlarged view showing the main component configuration state extract only the shock absorber that is the main part of the present invention.

The present invention is a compression rubber (31) in which the reinforcing plate 32 is inserted between the upper plate (1) to be mounted on the upper plate of the bridge and the lower plate (2) to be mounted on the pier and the upper and lower plates (1, 2) A fluorine resin plate 52 attached to the support plate 53 protruding from the smooth plate 51 inserted into the upper plate 1 or the lower plate 2 opposite thereto. In the chair device consisting of a bearing device (5) consisting of; Brackets 41 attached to the upper and lower plates 1 and 2 or the support 24, respectively, slightly spaced apart from both sides or the four sides of the pad 3 and the bearing device 5, and the upper and lower plates 1 and 2, respectively. Shock absorber (4) consisting of an elastic material (42) inserted at both ends of the support bolt (43) protruding to each of the brackets (41, 41), respectively, between the sets of brackets (41, 41) corresponding to ) Is an additional configuration.

5 is a diagram showing another configuration of the shock absorber 4, which is the main part of the present invention.

In the above-described configuration; It is preferable that the elastic member 42 is formed as a compression rubber to form a protrusion 422 which is extruded to a predetermined diameter on the outer circumferential surface, and a concave indentation 421 between the protrusions 422.

The present invention is constructed as described above, the function of receiving the enemy during the normal deformation of the upper plate is the same as the conventional teaching device, for example, the upper and lower plates (1, 2) to each of the anchor holes (11, 21) in the required position Perforated and screwed the anchor bolts (12,22) to each of the upper plate (Slab) and the pier to fix it, so that the load of the upper plate transmitted from the upper plate (1) in the resilient bearing device is inserted into the reinforcement plate (32) When the pad 3 is made of compressed rubber 31, it is appropriately received by the buffer, and the deformation caused by the displacement of the upper plate due to the difference in atmospheric temperature and the load change caused by the vehicle traveling on the upper plate is caused by the compression of the pad 3. And shear stresses, and in the photo-bearing type staggering device, the lubricating action between the smooth plate 51 of stainless steel and the fluorine resin of PTFE can be adapted to a considerable deformation force. do.

In addition to the conventional functions described above, the present invention can adequately cope with repeated strong lateral deformation forces such as earthquakes, which are relative to the brackets 41 and 41 attached to the upper and lower plates 1 and 2 and the support 24, respectively. This is because the elastic body inserted into the support bolt 43 between the brackets 41 and 41 cancels the lateral deformation force even if the displacement occurs. In this case, as the elastic member 42 used, a spring such as a coil spring or a leaf spring, a cylindrical shock absorber by hydraulic shock absorbing, and a compressive rubber having enhanced elasticity may be used. Compression rubber was selected, the support bolt 43 is screwed with the bracket 41 is adjusted in length to obtain a proper support force, after installation washer in the spiral projecting to the outside of the bracket 41 to limit the movement (44) was placed so that it could be tightened with the nut (45). Here, among the brackets 41 and 41 set, the bracket 41 close to the pad 3 side or the bearing device 5 side considers expansion of the side surface by compression of the pad 3 or push by shear deformation. And it is installed a little spaced apart in consideration of the deformation distance by the support reflected in the design, and the spaced distance from the elastic bearing type is adjusted in consideration of the design load received by the bridge device and the deformation amount according to the stress of the pad (3). do.

In addition, in another configuration of the present invention by forming the concave portion 421 and the protrusion 422 on the outer circumference by using the elastic material 42 as a compression rubber to solve the stress caused by vibration to improve the fatigue load .

The present invention described above is composed of, e.g., an elastic bearing type device and a photo-bearing type device for the convenience of the substrate among the device, but the device is made of an O-lessless bearing or any other type of device. It is applicable and such use does not depart from the claims of the present invention.

The present invention is easy to use because it can be simply changed and applied to the conventional bridge device as described above, and it is economical because the additional cost is low, and if it is within the deformation strain of the bridge, it can cope with the deformation force under any lateral deformation force such as earthquake. It is a useful and effective design that can fully exhibit the seismic capacity while offsetting the force.

Claims (2)

Compression that the reinforcing plate 32 is inserted between the upper plate 1 mounted on the upper plate of the bridge and the lower plate 2 mounted on the pier and the upper and lower plates 1 and 2 or the support 24 thereof. A fluorine resin plate attached to the smooth plate 51 inserted into or attached to the upper plate 1 and the support protrusion 53 protruding from the lower plate 2 opposite to the pad 3 made of rubber 31 is inserted. In the teaching device consisting of a bearing device (5) consisting of 52; Brackets 41 attached to the upper and lower plates 1 and 2, respectively, slightly spaced apart from both sides or the four sides of the pad 3 and the bearing device 5, and the brackets corresponding to the upper and lower plates 1 and 2 ( 41, 41) between the set of the shock absorber (4) consisting of an elastic material 42 which is partially inserted through the end of the support bolt (43) which is screwed to each of the brackets (41, 41) between the set, characterized in that the additional configuration Earthquake proofing device. The method of claim 1; The elastic member 42 is a compression rubber, characterized in that for forming a protrusion on the outer circumferential surface of the predetermined diameter and the concave indentation portion (421) between the protrusions (422).