KR101368377B1 - Expansion jointing apparatus for a bridge unify jointing process of anchor and drainage sheet - Google Patents

Abstract

The present invention relates to an expansion joint apparatus for a bridge unifying a coupling process of an anchor and a drainage sheet which does not require a mold or vulcanization binding process for installing a drainage sheet and which conveniently performs the entire coupling process to unify the anchor and the drainage sheet provided for different usage into an one component. The present invention includes: a pair of finger plates; a pair of supporting bodies; multiple anchors; a drainage sheet; an adhering part formed in the lengthwise direction of the support bodies to be long and located inside the support bodies to adhere and fix a part of the drainage sheet to inside of the support bodies; and a pair of unified combination materials which consist of multiple joining parts formed on the outer side of the adhering part at regular intervals and joined to the one end part of the anchor by penetrating the supporting bodies.

Description

Expansion joints for a bridge unify jointing process of anchor and drainage sheet}

The present invention relates to an expansion joint device for bridges, in particular, a mold or a vulcanization bonding process is unnecessary for the installation of the drainage sheet, as well as the integration of the anchor and the drainage sheet provided for different uses into a single part to integrate the whole. It is related with the expansion joint device for the bridge to facilitate the assembly work.

In general, a plurality of bridge decks are continuously installed at predetermined intervals so that bridges can be easily accommodated by new construction due to temperature changes such as winter and summer, dry shrinkage and creep due to concrete age, and movement of the upper tank according to live loads. do.

Accordingly, expansion joints including finger plates are widely used in order to smoothly pass a vehicle by connecting a joint between a top plate and a top plate of a bridge whose intervals change frequently.

Thus, Figure 1 is a reference diagram for explaining the expansion joint according to the prior art.

As shown, the conventional expansion joint device is provided with a pair of finger plate 10 at the upper end of the bridge top plate. And the lower side of the bridge support plate 20 for supporting the finger plate 10, the drain sheet 30 made of a flexible material to receive the water falling between the finger plate 10, and the expansion joint device bridge plate An anchor 40 for fixing to 90 was provided.

According to such a prior art, even if the interval between the top plate 90 changes as the bridge top plate 90 is stretched, the bridges while the tip fingers 11 alternately protruding from the pair of finger plates 10 remain in engagement with each other. By filling the gaps between the tops and removing the disconnection part, it was possible to suppress the noise and shock that may occur when the vehicle passes through the bridge. In addition, the flexible drainage sheet 30 may also block water or foreign substances flowing from the upper portion of the bridge to the lower side while flexibly dealing with the change in the gap of the bridge top plate from time to time.

However, in the related art, since the drain sheet 30 has been vulcanized and integrated with the support 20, a mold having a specific unit length (1.8m) has to be secured by a process of connecting the drainage sheet 30 to a predetermined unit length (1.8m), There is a problem that takes a long time to vulcanize rubber.

Recently, in order to improve such a problem, the drain sheet 30 has been changed in such a manner as to be fastened to the support 20 without being vulcanized, but the drain sheet 30 is fastened by using fasteners such as bolts, nuts, and rivets. Fastening at the point, even in the case of the anchor 40 is provided for a separate use is fastened by using fastening parts such as bolts, nuts, rivets, so the entire assembly process of the expansion joint is complicated and time-consuming There was a problem.

Particularly, in the case of the anchor 40, as shown in FIG. 1, since a large number is provided, a hard work to be fastened to each of the fastening parts is required. That is, the worker is to hold the anchor 40 in the state of holding the outside of the support 20, penetrate the support 20 and fastening the penetrated portion by using a nut inside the support 20, each anchor It was to be repeated one day for (40).

As a result, the entire assembly process of the new expansion joints required a lot of labor and time.

Korean Patent Publication No. 2009-0100197 (2009.09.23)

Accordingly, the present invention has been proposed to solve the conventional problems as described above, the object of the present invention is the need for a mold or a vulcanization bonding process for the installation of the drainage sheet as well as the anchor and the drainage sheet provided for different uses It is to provide a new expansion joint device for bridges that integrates the fastening into one part and makes the whole assembly work simple.

In order to achieve the above object, the expansion joint device for the bridge united by unifying and unifying the fastening of the anchor and the drainage sheet according to the technical idea of the present invention,

A pair of finger plates formed to extend in the transverse direction of the bridge and provided so that the tip portions alternately protrude from each other and engage with each other; A pair of supports formed in the longitudinal direction of the finger plate and supporting the finger plate from the bottom while facing each other; A plurality of anchors arranged in the longitudinal direction of the support and embedded in the bridge top plate and having one end coupled to an outer surface of the support to fix the support to the bridge top plate; And a drainage sheet installed in an elongated form along the longitudinal direction of the support between the pair of supports and receiving water falling between the finger plate and the finger plate, and formed along the longitudinal direction of the support to form a drainage sheet. A close contact portion which is located on the inner side and closes and fixes a part of the drain sheet to the inner side of the support, and a plurality of spaces are formed on the outer side of the close contact and is spaced apart and fastened to one end of the anchor through the support. It is characterized by its technical configuration to have a pair of integrated binder consisting of a fastening.

Here, the fastening portion penetrates the drainage sheet and the support at the same time and a portion of the drainage sheet is located between the contact portion and the support at the same time so as to be coupled to one end of the anchor so that the contact portion closes the drain sheet. It can be characterized by being in close contact with the fixed.

In addition, the upper end of the close contact portion facing the inner surface of the support may be characterized in that the fitting groove is formed to be fixed to the end of the drain sheet in close contact with the support.

In addition, a part of the fitting groove is formed in a more concave shape than the other portion, and correspondingly some of the end portion of the drain sheet may be characterized in that protruded compared to the other portion.

In addition, the fastening portion of the integrated coupling member is formed with a male screw, and one end of the anchor may be characterized in that the female screw formed so as to be fastened corresponding to the fastening portion.

In addition, the upper portion of the close contact portion of the integrated coupling member is formed to be inclined to extend to the inner bottom may be characterized in that the drain sheet is supported so as not to be sharply bent at the upper end of the vertical portion.

In addition, at least a portion of the drainage sheet contacting the contact portion may be formed of a rubber magnet having magnetic properties, and the contact portion may be formed of a metallic material that is adsorbed by a magnetic material. It can be characterized in that the adsorption groove and the adsorption protrusion is formed.

In addition, one end or the other end of the outer circumferential surface of the anchor may be characterized in that the nut portion of the angular form is formed so that it can be rotated using a spanner.

In addition, the anchor may be characterized in that provided in a straight form.

In addition, the anchor may be characterized in that the other end is provided to be bent inclined downward.

In addition, the attenuating bridge is installed so as to be stretchable in the form of connecting them between the contact portion facing each other is provided with a damping bridge to absorb the noise and vibration transmitted from the finger plate to the contact portion while accepting the change in the gap of the contact portion. It can be characterized.

In addition, the attenuation bridge is made of a urethane material for the absorption of noise and vibration, and is formed in a cylindrical shape where one end and the other end is coupled to each of the close contact portion, the hollow is formed in the longitudinal direction therein the close contact portion When the gap of the narrowing can be characterized in that the hollow is opened so that the bending does not occur.

In addition, it is installed so as to be stretchable in the form of connecting them between the contact portion facing each other, the elastic bridge of the elastic material which acts in the direction to widen the gap if the distance between the contact portion is further characterized in that it is further provided You can do

In addition, the elastic bridge, one end and the other end may be characterized in that the coil spring is coupled to each of the close contact portion.

In addition, the elastic bridge may be characterized in that the pair of leaf springs that are coupled to each other in contact with each other while facing each other.

In addition, the elastic bridge is a pair of base springs that are seated and supported in the seating grooves formed in each of the close contact portion, and a pair of leaf springs joined to the base plate in the form of a semi-circular tube to have mutual elasticity and to face each other. It may be characterized by consisting of.

The expansion joint device for bridges according to the present invention integrates the fastening of a plurality of anchors and drainage sheets provided for different uses as well as the need for a mold or a vulcanization process for the installation of the drainage sheet into an integrated binder as one component. By uniting them, the fastening work can be made easily.

In addition, the present invention can maintain the state in which the drainage sheet is very stably bonded to the support because the close contact portion of the integrated bonding material supports the drainage sheet in close contact with the large area.

In addition, the present invention facilitates the assembly work because the vertical portion of the drain sheet and the close contact portion of the integrated bonding material temporarily hold the adsorbed state by magnetic.

In addition, the present invention can be absorbed and offset in the middle of the noise and vibration transmitted from the finger plate to the close contact portion by the attenuation bridge.

In addition, the present invention can selectively use anchors having various shapes can minimize the rebar interference.

1 is a reference diagram for explaining the expansion joint according to the prior art
Figure 2 is a perspective view of the expansion joint device for a bridge according to an embodiment of the present invention
Figure 3 is an exploded perspective view of the expansion joint device for a bridge according to an embodiment of the present invention
Figure 4 is a longitudinal cross-sectional view for explaining the configuration of the expansion joint device for bridges according to an embodiment of the present invention
5 is a cross-sectional view showing the operation of the expansion joint device for a bridge according to an embodiment of the present invention;
Figure 6 is a cross-sectional view for explaining an additional configuration for the coupling of the drainage sheet and the integrated binder in the expansion joint device for a bridge according to an embodiment of the present invention
7 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to the first modified embodiment of the present invention
8 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a second modified embodiment of the present invention
9 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a third modified embodiment of the present invention
10 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a fourth modified embodiment of the present invention;
11 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a fifth modified embodiment of the present invention.
12 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a sixth modified embodiment of the present invention.
13 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a seventh modified embodiment of the present invention.
14 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to an eighth modified embodiment of the present invention.
15 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a ninth modified embodiment of the present invention.

With reference to the accompanying drawings will be described in detail with respect to the expansion joint device for bridges according to embodiments of the present invention. As the inventive concept allows for various changes and numerous modifications, particular embodiments will be illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic configuration.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Bridge expansion joint according to an embodiment of the present invention, a mold or a vulcanization bonding process is not necessary for the installation of the drainage sheet, as well as to integrate the fastening of the anchor and the drainage sheet provided for different uses into a single part to be unified It is composed.

As a result, the inconvenience of installing the drainage sheet in the expansion joint device for bridges is minimized.

Hereinafter, a bridge expansion and contraction apparatus according to an embodiment of the present invention will be described.

2 is a perspective view of the expansion joint device for a bridge according to an embodiment of the present invention, Figure 3 is an exploded perspective view of the expansion joint device for a bridge according to an embodiment of the present invention, Figure 4 is a bridge according to an embodiment of the present invention Figure 5 is a longitudinal cross-sectional view for explaining the configuration of the expansion joint device for, Figure 5 is a reference cross-sectional view showing the operation of the expansion joint device for a bridge according to an embodiment of the present invention. And Figure 6 is a cross-sectional view for explaining an additional configuration for the coupling of the drainage sheet and the integrated binder in the expansion joint device for bridges according to an embodiment of the present invention.

As shown, the bridge expansion joint according to an embodiment of the present invention, a pair of finger plate 110, a pair of support 120, a pair of drain sheet 130, a plurality of It is composed of an anchor 140, the integrated binder 150, and the damping bridge 160, in the embodiment of the present invention, the integrated binder 150 is anchored to the support 120 and the drain sheet ( It is technical part to have a unique configuration that combines 130) at the same time. Hereinafter will be described in detail the configuration of the expansion joint according to the embodiment of the present invention with respect to each of the components.

The integrated binder 150 serves to uniquely couple the anchor 140 and the drain sheet 130 to the support 120 as described above. To this end, the integrated binder 150 is formed of an adhesive part 151 and a plurality of fastening parts 152. The close contact portion 151 may contact the vertical portion 132 of the drain sheet 130 toward the support 120 while contacting the inner surface of the vertical portion 132 of the drain sheet 130 with a wide area. It is provided in the form of plate so that. In addition, the fastening part 152 is provided on the outer surface of the close contact portion 151 so as to correspond to the number of anchors 140 to penetrate the vertical portion 132 and the support 120 of the drain sheet 130. It is fastened to one end of the anchor 140 in a state. Here, the fastening portion 152 is formed with a male screw 152a to be fastened to one end of the anchor 140 formed with the female screw 141a. As such, when the close contact portion 151 is formed in the form of a wide plate in the integrated binder 150, the drainage sheet 130 can be stably supported without a break section in a wide area with respect to the support 120. And it can be noted that the fastening operation of the anchor 140 because it can be replaced by simply holding only one contact portion 151 without the need to hold a large number of fasteners 152 provided for fastening a plurality of anchors 140 This is very simple.

According to such a configuration, while inserting the integrated binder 150 into the space between the vertical portion 132 of the drain sheet 130, a plurality of fastening portion 152 is pre-formed in the vertical portion 132 ( 132a and each of the fastening parts 152 protruded in a state in which the support 120 is pushed into the through holes 121a formed in the support 120 to protrude to the outside of the support 120, and then simply supports only one contact part 151. When the plurality of anchors 140 are fastened to the assembly of the expansion joint as a whole is simply completed. As described above, according to the embodiment of the present invention, the assembly having the integrated binder 150 is integrated to integrate the parts for fastening the drainage sheet 130 and the anchor 140 into one, and the fastening work is unified as a whole. The process is very easy.

Furthermore, an additional configuration may be provided to improve the bondability of the drain sheet 130 and the integrated binder 150. That is, the vertical portion 132 or the entirety of the drain sheet 130 may be provided with a rubber magnet to which magnetism is given, rather than general rubber, and the close contact portion 151 of the integrated binder 150 is magnetically drained. It is provided with a metallic material that is adsorbed to the vertical portion 132 of the sheet 130. Also, in this case, as shown in FIG. 6, a plurality of adsorption grooves 132b and adsorption protrusions 151b corresponding to each other are formed on opposite surfaces of the vertical portion 132 and the contact portion 151 of the drain sheet 130. do. According to such a configuration, the vertical portion 132 and the close contact portion 151 have a tendency to be adsorbed by magnetic, and once adsorbed, there is a tendency to maintain the state without being separated from each other. According to this configuration when the anchor 140 is fastened to the fastening portion 152 because the drainage sheet 130 and the integrated binder 150 temporarily maintains the state adsorbed by each other in the assembly process of the expansion joint device. Since the effort to hold the integrated binder 150 can be reduced, the operation can be further simplified.

The finger plate 110 is provided with a pair to face each other to fill the gap between the top plate and the top plate of the bridge is to serve to fill it, the protruding alternately protruding mutually opposite finger 111 is formed do. Here, the fingers 111 may be provided in various forms in addition to the form shown in the drawings.

The supporter 120 serves to support the finger plate 110 from the bottom while facing each other. To this end, the support 120 is firmly coupled to the lower side of the finger plate 110 through welding or fastening parts, and is provided with a vertical plate-like member as shown in the drawing.

The drain sheet 130 serves to receive the water falling between the finger plate 110 and the finger plate 110 to be guided to the side of the bridge to drain. To this end, the drain sheet 130 is provided with a flexible material that can be stretched while having a waterproof function, such as rubber. In addition, the bent portion 131 formed on the upper and lower portions of the drain sheet 130 has a V-shape in the transverse direction of the bridge (the lower bent portion 131 is an inverted V-shaped that is vertically symmetric with the lower bent portion 131). Shape) to be unfolded and retracted while accepting a change in the spacing of the supporters 120 as the bridge top plate moves. The vertical portion 132 vertically extending from both ends of the bent portion 131 is formed in a wide plate shape and has a through hole 132a through which the fastening portion 152 of the integrated binder 150 can pass. . On the other hand, the drain sheet 130 is made of a material having a magnetic for temporary coupling with the integrated binder 150 partially or entirely limited to the close contact portion 151 to facilitate the assembly operation of the expansion joint device as described above Can be done.

The anchor 140 is embedded in the bridge top plate and one end is coupled to the support 120 to serve to fix the support 120 to the bridge top plate. To this end, the anchor 140 is formed with a female screw 141a to be fastened corresponding to the fastening portion 152 of the integrated coupling member 150 formed with the male screw 152a. In addition, an outer circumferential surface of one end of the anchor 140 is formed with an angled nut part 141 to be rotated using a spanner for fastening with the fastening part 152. However, the nut part 141 may be formed on the outer circumferential surface of the other end of the anchor 140, and the nut part 141 may be formed wider than other parts.

The attenuation bridge 160 serves to absorb noise and vibration transmitted from the finger plate 110 to the close contact part 151. To this end, the attenuation bridge 160 is made of a urethane material that combines both the expansion function and the function of absorbing noise and vibration. And one end and the other end is formed in a cylindrical shape coupled to each of the close contact portion 151, the hollow 161 is formed in the longitudinal direction therein. As shown in FIG. 5, the inner hollow 161 serves to restrain the twisting or bending phenomenon from occurring in the attenuation bridge 160 as the width increases when the gap between the close parts 151 is narrowed. Here, the close contact portion 151 is formed with a ring-shaped bracket 151a to be coupled to the end of the attenuation bridge 160.

On the other hand, the present invention is a modified embodiment made as the integrated binder 150, drain sheet 130, anchor 140, attenuation bridge 160 is deformed, and the invention according to the modified embodiment below Describe the expansion joints for bridges.

7 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to the first modified embodiment of the present invention.

As illustrated, the expansion joint device for a bridge according to the first modified embodiment of the present invention is in close contact with the support 120 on the outer surface of the upper end of the close contact portion 151 facing the inner surface of the support 120. In the state characterized in that the fitting groove 151e is formed to be fixed to the end of the drain sheet 130.

In addition, the fitting groove 151e of the close contact portion 151 is formed in a more concave shape, the end of the drain sheet 130 is formed with a protrusion 132e protruding compared to other portions. As a result, the end of the drain sheet 130 may be protected from falling out while stably maintaining the fitted state of the fitting groove 151e formed in the close contact portion 151. Furthermore, the upper end of the close contact portion 151 is formed of a gentle curved surface 151f so that the drain sheet 130 can be bent gently without sharply bending, and the portion connected to the curved surface 151f is formed vertically. It is preferable to form the inclined surface 151g instead.

According to the configuration of the first modified embodiment as described above, the drain sheet 130 can be easily fixed by the close contact portion 151 without having to penetrate the fastening portion 151 of the integrated bonding material 150 in comparison with the previous embodiment. There is an advantage that it can.

8 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to the second modified embodiment of the present invention.

As shown, the expansion joint device for a bridge according to the second modified embodiment of the present invention, the support 120 for both the upper end and the lower end of the close contact portion 151 facing the inner surface of the support 120. The fitting groove (151e) is formed to be fixed to the end of the drain sheet 130 in close contact with the) is formed.

In this second modified embodiment, except that the fitting groove 151e is formed at both the upper end portion and the lower end outer surface of the close contact portion 151, the rest of the configuration is almost the same, and thus the detailed description thereof will be omitted.

9 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to the third modified embodiment of the present invention.

As shown in the drawing, the expansion joint device for a bridge according to the third modified embodiment of the present invention is characterized in that the bent portion 131 having a V shape is formed only on the upper portion of the drain sheet 130 as compared with before the deformation. .

As described above, according to the modified configuration in which the bent portion 131 is formed only on the upper portion of the drain sheet 130, since the lower portion of the drain sheet 130 is opened, there is an advantage in that it is easier to position the integrated binder 150.

10 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to a fourth modified embodiment of the present invention.

As shown in the drawing, the expansion joint device for a bridge according to the fourth modified embodiment of the present invention is extended inclined downward from the inner side to the upper end of the contact portion 151 of the integrated binder 150 as compared with the third modified embodiment. Characterized in that the support portion 153 is further formed.

According to this configuration, while the drain sheet 130 is supported by the support portion 153 formed in the upper portion of the close contact portion 151, the bending portion 131 extending from the upper end of the vertical portion 132 is generated by sharp bending The downward deflection problem is alleviated and the intended V-shape naturally forms.

11 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to the third modified embodiment of the present invention.

As shown, in the expansion joint device for a bridge according to the fifth modified embodiment of the present invention, the length of the anchor 140 is significantly shortened to 1/2 level as compared with before deformation, the nut portion 142a is the other end Located on the flange 142 outer peripheral surface is characterized in that.

According to such a configuration, when the anchor 140 is fastened to the integrated coupling member 150, the spanner may be passed to the nut part 142a formed on the flange 142 to rotate the anchor 140. Since the length is short to 1/2 level, it can be usefully applied when it is expected that the interference of reinforcing bars in the bridge deck will be severe.

12 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to the sixth modified embodiment of the present invention.

As shown in the drawing, the expansion joint device for a bridge according to the sixth modified embodiment of the present invention is bent at an intermediate point 140a of the anchor 140 as compared to before deformation, and the other end is bent inclined downward. It is characterized by being.

According to such a configuration, since the anchor 140 can be woven together with the reinforcing bars while being embedded at a deeper depth in the bridge top plate, it is useful to more stably fix the support 120 in connection with the reinforcing bars.

13 is a cross-sectional view for explaining the configuration of the expansion joint device for a bridge according to the seventh modified embodiment of the present invention.

As shown in the drawing, the expansion joint device for a bridge according to the seventh modified embodiment of the present invention is a pair of tubular shapes having a tubular shape as an elastic bridge focused on an elastic function instead of the attenuation bridge 160 as compared with before the deformation. The leaf spring 170 is characterized in that it is installed.

The tubular leaf spring 170 is installed to be stretchable in the form of connecting them between the contact portions 151 facing each other, and when the distance between the contact portions 151 is narrowed, it acts in a direction to widen them. do. To this end, the tubular leaf spring 170 is a pair of base plate 171 that is seated and supported in the seating groove 151c formed in each of the close contact portion 151, and in the form of a semi-circular tube on the base plate 171 It is composed of a pair of elastic members 172 bonded to each other and having elastic force.

According to this configuration, the tubular leaf spring 170 is formed continuously continuously along the transverse direction of the bridge to provide abundant elastic force in a wide area while suppressing the gap between the bridge top plate is not excessively narrowed and to quickly return to the appropriate interval To help.

14 is a cross-sectional view for explaining the structure of the expansion joint device for a bridge according to the seventh modified embodiment of the present invention.

As shown in the drawing, in the expansion joint device for a bridge according to the sixth modified embodiment of the present invention, compared with the seventh modified embodiment, a plurality of pairs in which the elastic bridges are coupled to each contact portion 151 and face each other are opposed to each other. It characterized in that it is provided with a ring-shaped leaf spring (180).

According to this configuration, a plurality of the ring-shaped leaf spring 180 is arranged along the transverse direction of the bridge to provide an elastic force, while preventing the gap between the bridge top plate is not excessively narrowed and helps to quickly return to the appropriate interval.

15 is a cross-sectional view for explaining the structure of the expansion joint device for a bridge according to the ninth modified embodiment of the present invention.

As shown, in the expansion joint device for a bridge according to the ninth modified embodiment of the present invention, compared to the fifth modified embodiment, a plurality of coil springs in which both ends of the elastic bridge is coupled to the close contact portion 151 ( 190) characterized in that provided.

Here, it is preferable that a ring-shaped fitting ring 151d is formed on the inner surface of the close contact portion 151 so that both ends of the coil spring 190 can be fitted and supported.

In the case of the ninth modified example, the gap between the bridge decks is suppressed from being excessively narrowed and helps to quickly return to the proper intervals.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

110: finger plate 120: support
130: drain sheet 140: anchor
150: integrated binder 151: close contact
152: fastening portion 160: attenuation bridge

Claims (16)

In the expansion joint device for bridges installed in the joint between the top plate and the top plate of the bridge,
A pair of finger plates formed to extend in the transverse direction of the bridge and provided so that the tip portions alternately protrude from each other and engage with each other;
A pair of supports formed in the longitudinal direction of the finger plate and supporting the finger plate from the bottom while facing each other;
A plurality of anchors arranged in the longitudinal direction of the support and embedded in the bridge top plate and having one end coupled to an outer surface of the support to fix the support to the bridge top plate;
It includes a drain sheet is installed in a long form along the longitudinal direction of the support between the pair of supports receiving water falling between the finger plate and the finger plate,
Is formed along the longitudinal direction of the support and is located on the inner surface side of the support and in close contact with the inner surface of the support in a state in which a portion of the drain sheet is located between the support and the support, It is formed integrally with a plurality of spaced apart on the outer side of the close contact portion and consists of a bar-shaped fastening portion which penetrates the drainage sheet and the support at the same time and is fastened to one end of the anchor, the inner and outer surfaces of the support center. It is provided with a pair of integrated binder for fixing the drain sheet and the anchor at the same time,
The fastening portion of the integrated coupling member is formed with a male screw, and one end of the anchor is an expansion joint device for a bridge characterized in that the female screw formed to be fastened corresponding to the fastening portion. delete The method of claim 1,
The expansion joint device for a bridge, characterized in that the fitting groove is formed on the outer surface of the close contact portion facing the inner surface of the support body to fit the end of the drain sheet in close contact with the support. The method of claim 3,
A portion of the fitting groove is formed in a more concave shape than the other portion, corresponding to some of the ends of the drain sheet is a stretch joint device for a bridge, characterized in that protruding than other portions. delete The method of claim 1,
The upper and lower ends of the close contact portion of the integrated binder is formed in the support portion extending inclined to the inner lower portion is the expansion joint device for a bridge characterized in that the drain sheet is supported so as not to be sharply bent at the upper end of the vertical portion. The method of claim 1,
At least a portion of the drain sheet contacting the contact part is made of a rubber magnet having magnetic properties, and the contact part is made of a metallic material that is adsorbed by magnetism. Expansion joint device for a bridge, characterized in that the groove and the adsorption projection is formed. The method of claim 1,
One end or the other end of the outer peripheral surface of the anchor is wider than other portions, the expansion joint device for a bridge, characterized in that the angled nut portion is formed to be rotated using a spanner. 9. The method of claim 8,
The anchor is a expansion joint device for a bridge, characterized in that formed in a straight form. 9. The method of claim 8,
The anchor is an expansion joint device for a bridge, characterized in that the other end is provided bent inclined downward. The method of claim 1,
The attenuation bridge is installed so as to be stretchable in the form of connecting them between the contact portion facing each other, the attenuation bridge absorbing the noise and vibration transmitted from the finger plate to the contact portion while accommodating the change in the gap of the contact portion is further provided. Expansion joints for bridges. 12. The method of claim 11,
The attenuation bridge is made of a urethane material for absorbing noise and vibration, and is formed in a cylindrical shape where one end and the other end are coupled to each of the close contact portions, and a hollow is formed along the length thereof, so that the gap between the close contact portions The expansion joint device for a bridge, characterized in that when the narrowing is made so that the hollow is opened so that no bending occurs. The method of claim 1,
It is installed so as to be stretchable in the form of connecting them between the contact portion facing each other, the elastic bridge of the elastic material which acts in a direction to widen the gap when the contact portion is narrowed further characterized in that it is further provided Expansion joints for bridges. 14. The method of claim 13,
The elastic bridge is composed of a pair of base plates that are seated and supported in the seating grooves formed in each of the close contact portion, and a pair of elastic members joined to the base plate in a semi-circular tube shape to have mutual elasticity and to face each other. An extension joint for a bridge, characterized in that the tubular leaf spring is installed long in the cross direction of the bridge. 14. The method of claim 13,
The elastic bridge is made of a pair of ring-shaped leaf springs coupled to each other while being in contact with each other while facing each other, the expansion joint device for a bridge, characterized in that a plurality of pairs are arranged in the transverse direction of the bridge. 14. The method of claim 13,
The elastic bridge is made of a coil spring, one end and the other end is coupled to the respective close contact portion, the expansion joint device for a bridge, characterized in that a plurality is arranged along the transverse direction of the bridge.

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