KR200256833Y1 - Apparatus for supporting bridge structures - Google Patents

Abstract

The present invention provides a bridge device having a bridge superstructure and a bridge substructure supporting the bridge superstructure, the bridge apparatus comprising: at least one pair of supports coupled to the bridge superstructure and the bridge substructure, respectively; And bearings disposed between the respective support portions having at least one elastic spring inserted into and disposed along the load direction of the bridge superstructure therein to attenuate relative vibration between the bridge superstructure and the bridge substructure. do. Thereby, a bridge arrangement is provided which can effectively attenuate the relative vibrations generated between the bridge superstructure and the bridge substructure.

Description

Discipline device {APPARATUS FOR SUPPORTING BRIDGE STRUCTURES}

The present invention relates to a bridge device, and more particularly, to a bridge device with improved elastic support structure between the bridge superstructure and the bridge substructure.

9 is an enlarged cross-sectional view of main parts of a conventional teaching apparatus. As shown in the figure, between the bridge superstructure 110 and the bridge substructure 120, the upper support 130 and the lower support coupled to the bridge superstructure 110 and the bridge substructure 120, respectively The bearing 150 arrange | positioned between the 140 and each support part 130 and 140 is provided.

The upper support part 130 and the lower support part 140 are provided with a plurality of anchors 132 and 142 on the plate surface. The anchors 132 and 142 are integrally embedded in the bridge superstructure 110 and the bridge substructure 120, respectively, so that the upper support 130 and the lower support 140 are connected to the bridge superstructure 110 and the bridge substructure 120. Let each be fixed.

The bearing 150 is formed of rubber to attenuate vibration, and a plurality of bearing bodies 151 layered in the plate direction at predetermined intervals in the bearing body 151 to impart rigidity to the bearing body 151. It has the reinforcement board 153.

The bearing 150 is disposed between the upper support 130 and the lower support 140 to damp the relative vibration between the bridge superstructure 110 and the bridge substructure 120.

However, there is a problem that it is not easy to effectively attenuate the relative vibration, particularly the vibration caused by the earthquake, between the bridge upper structure and the bridge substructure through the structure of the aforementioned bearing.

In addition, in the conventional bridge apparatus, there is no separate means for supporting the bridge superstructures with respect to the bridge substructures, so that in the event of natural disaster such as vibration, earthquake, or typhoon, the bridge superstructures are separated from the bridge substructures. There is a problem that may be.

It is therefore an object of the present invention to provide a bridge arrangement that can effectively attenuate the relative vibrations generated between a bridge superstructure and a bridge substructure.

In addition, another object of the present invention is to provide a bridge arrangement that allows the bridge superstructure to flow a predetermined distance in the horizontal direction with respect to the bridge substructure, while preventing the bridge superstructure from escaping from the bridge substructure. .

1 is a perspective view of a teaching device according to the present invention,

2 is a schematic side view of FIG. 1;

3 is an enlarged perspective view of main parts of FIG. 2;

4 is a partially cutaway perspective view of the bearing shown in FIG. 3, FIG.

5 is a partially cutaway perspective view of a bearing according to another embodiment of the present invention;

6 is a partially cutaway perspective view of a bearing according to another embodiment of the present invention;

7 is a cross-sectional view of the coupled state of FIG.

8 is a cross-sectional view of the coupled state according to another embodiment of FIG.

9 is an enlarged cross-sectional view of main parts of a conventional teaching apparatus.

* Explanation of symbols for the main parts of the drawings

10: bridge superstructure 20: bridge substructure

30: upper support part 40: lower support part

50: bearing 55: elastic spring

57: reinforcing spring 60: clamp member

The object of the present invention is a bridge device having a bridge superstructure and a bridge substructure supporting the bridge superstructure, according to the present invention, at least one pair of support portions coupled to the bridge superstructure and the bridge substructure, respectively; ; And bearings disposed between the respective support portions having at least one elastic spring inserted into and disposed along the load direction of the bridge superstructure therein to attenuate relative vibration between the bridge superstructure and the bridge substructure. Is achieved by a teaching device.

Here, it is advantageous to further include a plurality of reinforcing plates arranged in the plate direction at predetermined intervals in the bearing.

It is provided on at least one side of each support portion to prevent the bridge superstructure from being separated from the bridge substructure, the bridge superstructure is moved a predetermined distance along the plate direction of the bridge superstructure with respect to the bridge substructure It is advantageous to further include a clamp member to allow.

At this time, the clamp member is composed of a pair of clamp member portions respectively fixed to the support portions.

Each of the clamp member portions may include: a fixing part fixed to at least one of the bridge upper structure, the bridge lower structure, and each of the supporting parts; A lateral limiting portion that is bent from the fixing portion to limit a lateral movement of the bridge superstructure relative to the bridge substructure by a predetermined distance; And an upper and lower limit portion formed at the end of the lateral limit portion to limit a vertical distance of the vertical movement of the bridge upper structure with respect to the bridge substructure.

On the other hand, it is advantageous to further include an additional reinforcing spring inserted inside the elastic spring.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, and like reference numerals refer to like elements.

As shown in FIG. 1, the bridge device includes a pair of bridge superstructures 10 connected to each other, and a bridge substructure 20 disposed below the bridge superstructure 10 to support the bridge superstructure 10. Has

The bridge upper structure 10 is divided into a vehicle bridge top plate 12 on which a vehicle travels, and a bridge top plate 14 for sidewalks where people walk and are disposed with respect to the vehicle bridge top plate 12. A barrier is provided at the end of the bridge deck 14 for guiding.

Compared to the bridge substructure 20, the bridge superstructure 10 has a greater degree of expansion and contraction according to temperature change and load. Therefore, the bridge upper structure that is constructed over a certain length, as shown in Figure 2, has a suitable interval (generally referred to as 'gap (H)') for each predetermined length. A bridge expansion and contraction device (not shown) is installed in the clearance gap H, and the bridge upper structure 10 is prevented from being damaged by the expansion and contraction device.

As shown in FIG. 3, between the bridge superstructure 10 and the bridge substructure 20, a pair of supports 30 and 40 and between each support 30 and 40 to ensure seismic safety of the bridge are provided. The bearing 50 to be disposed and the clamp member 60 to allow the bridge superstructure 10 to move a predetermined distance in the horizontal direction while preventing the bridge superstructure 10 from being separated from the bridge substructure 20 are provided. It is installed.

A plurality of upper anchors 32 are provided on the plate surface of the upper support part 30. The upper anchor 32 is integrally embedded in the bridge upper structure 10, so that the upper support portion 30 can be fixed to the bridge upper structure (10). At this time, the upper anchor 32 may be coupled to the upper support portion 30 by welding as shown in FIG. 3, as well as to form a predetermined through hole in the upper support portion 30 and the upper anchor 32. After the insertion arrangement, the upper anchor 32 may be coupled to the upper support part 30 using a plurality of nuts (not shown).

Similarly to the upper support part 30, a plurality of lower anchors 42 are provided on the plate surface of the lower support part 40. The lower anchor 42 is also integrally embedded in the bridge substructure 20, so that the lower support 40 can be fixed to the bridge substructure 20. At this time, the lower anchor 42 may also be coupled to the lower support 40 in the same manner as the upper anchor 32 described above. In addition, the upper anchor 32 and the lower anchor 42 may be formed in the form of bolts or long rods, and may have an annular shape (so-called Ｊ anchor or L anchor) with curved ends.

The clamp member 60 is composed of a pair of clamp member portions 60a and 60b fixed to the upper support portion 30 and the lower support portion 40, respectively. Each of the clamp member portions 60a and 60b includes fixing portions 62a and 62b fixed to the supporting portions 30 and 40, side limit portions 64a and 64b extending from the fixing portions 62a and 62b. It has upper and lower limit parts 66a and 66b formed at the ends of the side limit parts 64a and 64b. Since the clamp member 60 may be formed of an iron material, the fixing parts 62a and 62b of the clamp member 60 are fixed to the upper support part 30 and the lower support part 40 by welding or bolting.

At this time, the coupling positions of the fixing parts 62a and 62b may be coupled to the plate surfaces of the respective support parts 30 and 40, as shown in FIGS. 3 and 7, and as shown in FIG. 8, each support part 30, 40). In this case, a flange portion (not shown) may be formed in the fixing portions 62a and 62b for the convenience of welding.

In addition, the lateral limiting portions 64a and 64b and the upper and lower limiting portions 66a and 66b formed in the clamp member portions 60a and 60b, respectively, have predetermined flow intervals A, B and C. (D, enlarged in FIG. 7) is loosely held together.

That is, due to the flow gap (A, B), the bridge superstructure 10 is allowed to move a predetermined distance to the bridge substructure 20, and due to the flow interval (C, D), the bridge superstructure (10) Is allowed to move a predetermined distance up and down with respect to the bridge substructure 20. However, when the bridge upper structure 10 is excited by the natural disaster due to the bridge lower structure 20, the upper and lower limit portions 66a, 66b can be prevented from leaving the bridge upper structure (10). .

Therefore, the clamp member portions 60a, 60b disposed with such flow intervals A, B, C, and D effectively attenuate the vibration problem of the bridges together with the aforementioned bearings 50, thereby extending the life of the bridges. In addition, the bridge superstructure 10 can be prevented from being separated.

The bearing 50 is disposed between the upper support 30 and the lower support 40 to dampen relative vibrations that may occur between the bridge superstructure 10 and the bridge substructure 20. That is, the bridge has a structure that is very vulnerable to vibrations, such as earthquakes in nature, thereby improving the vulnerable structure through the bearing 50 and ensures stability against vibrations.

As shown in FIG. 4, the bearing 50 includes a bearing body 51 having an elastic material, and a plurality of reinforcement plates 53 arranged in a layered direction in a plate direction at predetermined intervals in the bearing body 51. And an elastic spring 55 inserted into the bearing body 51 along the transverse direction with respect to the plate surface of the reinforcing plate 53.

The bearing body 51 is formed of a rubber material. Therefore, the compressive force may be applied to the load of the bridge superstructure 10, and the shear force may be applied to the displacement of the bridge superstructure 10 in the horizontal direction. However, the bearing body 51 is not necessarily formed of rubber, and may be substituted with a material such as compressed styrofoam, sponge, or elastically deformable engineering plastic. In addition, the bearing body 51 may have a rectangular block shape (see Fig. 4), or may have a cylindrical shape (see Fig. 5) and other polygonal shapes.

The reinforcement plate 53 is installed to support the compressive force against the load of the bridge superstructure 10 that the bearing body 51 has. Therefore, the reinforcing plate 53 is preferably formed of a plate-shaped iron plate member, but in some cases it may be substituted by engineering plastics that can compensate for the compressive force, such as metal. Since the compressive force with respect to the load is proportional to the width thereof, the area of the bearing body 51 and the reinforcement plate 53 is appropriately designed according to the load of the bridge superstructure 10 to be installed.

The elastic spring 55 is designed to have an appropriate modulus of elasticity with respect to the load of the bridge superstructure 10 and is inserted into the receiving portion 59 formed in the bearing body 51. The elastic spring 55 may support a compressive force with respect to the load of the bridge superstructure 10, and may support the shear force against the displacement of the bridge superstructure 10 in the horizontal direction. Therefore, when the volume of the bearing body 51 is relatively small, one elastic spring 55 may be installed. When the volume of the bearing body 51 is relatively large, a plurality of receiving portions 59 are formed to form a plurality of elastic springs. It is advantageous to install the spring 55.

In addition, as a method for increasing the compressive force against the load and the shear force against the displacement of the bridge superstructure 10, as shown in Figure 6, an additional reinforcement spring (57) inserted into the elastic spring (55) You can install more. At this time, the elastic modulus of the elastic spring 55 and the reinforcing spring 57 may be equal to or different from each other so as to have an appropriate compressive force and shear force.

Referring to the process of installing the teaching apparatus according to the present invention by such a configuration as follows.

First, the upper support portion 30 is fixed to the bridge upper structure 10 while embedding the upper anchor 32 at the lower end of the bridge upper structure 10. In the same manner, while fixing the lower anchor 42 to the upper end of the bridge substructure 20 to secure the lower support portion 40 to the bridge substructure 20.

Then, the bearing 50 is disposed between the upper support part 30 and the lower support part 40, and a pair of support parts 30 and 40 are mutually formed along the circumference of the upper support part 30 and the lower support part 40. Coupling each clamp member portion (60a, 60b) while allowing it to be retained. At this time, the pair of clamp member portions (60a, 60b) may be coupled not only to one side of each support portion 30, 40, but also intermittently coupled along the circumference of each support portion (30, 40).

As such, in the present invention, by improving the structure of the bearing 50 and installing the clamp member 60, it is possible to effectively damp the relative vibration generated between the bridge upper structure 10 and the bridge lower structure 20, While allowing the bridge superstructure 10 to flow a certain distance in the horizontal direction with respect to the bridge substructure 20, it is possible to prevent the bridge superstructure 10 from leaving the bridge substructure 20.

In the above-described embodiment, the fixing portion of the clamp member portion is to be fixed to each support portion, but the fixing portion may also be fixed to the bridge upper structure and the bridge substructure.

As described above, according to the present invention, there is provided a bridge device for effectively damping the relative vibration generated between the bridge superstructure and the bridge substructure.

In addition, according to the present invention, there is provided a bridge device for allowing the bridge superstructure to flow a predetermined distance in the horizontal direction with respect to the bridge substructure, while preventing the bridge superstructure from being separated from the bridge substructure.

Claims (6)

A bridge device having a bridge superstructure and a bridge substructure supporting the bridge superstructure, At least one pair of supports respectively coupled to the bridge superstructure and the bridge substructure; And bearings disposed between the respective support portions having at least one elastic spring inserted into and disposed along the load direction of the bridge superstructure therein to attenuate relative vibration between the bridge superstructure and the bridge substructure. The teaching device. The method of claim 1, And a plurality of reinforcing plates arranged in a layer in the plate direction at predetermined intervals in the bearing. The method of claim 1, It is provided on at least one side of each support portion to prevent the bridge superstructure from being separated from the bridge substructure, the bridge superstructure is moved a predetermined distance along the plate direction of the bridge superstructure with respect to the bridge substructure The device of claim 1, further comprising a clamp member to allow. The method of claim 3, And the clamp member comprises a pair of clamp member portions respectively fixed to the support portions. The method of claim 4, wherein Each of the clamp member portions, A fixing part fixed to at least one of the bridge superstructure, the bridge substructure, and each of the supporting parts; A lateral limiting portion that is bent from the fixing portion to limit a lateral movement of the bridge superstructure relative to the bridge substructure by a predetermined distance; And an upper and lower limiting portion formed at the end of the side limiting portion to limit a predetermined distance of vertical movement of the bridge upper structure with respect to the bridge substructure. The method of claim 1, And an additional reinforcement spring inserted into the elastic spring.