KR20180003416U - Sidewalk structure for bridge - Google Patents

Abstract

A plurality of cantilevers connected to the bridge; A lower plate member on which both end portions are respectively supported by a cantilever; An upper plate member positioned on the lower plate member; And a stretch accommodating module connecting the lower plate member and the cantilever, wherein the stretch retracting module comprises: one or more holders fixed to the cantilever; A guide connected to the holder and positioned above the cantilever to guide the lower plate member in the direction of the expansion and contraction of the lower plate member; And at least one support roller rotatably positioned between the cantilever and the lower plate member and connected to the holder and supporting the lower plate member.

Description

{SIDEWALK STRUCTURE FOR BRIDGE}

The present invention relates to an extended guide structure for bridges.

In general, a bridge is a facility that allows a vehicle or a person to cross a terrain with a high or low altitude such as a river, a stream, or a valley. The bridge may include various structures depending on the surrounding environment, . ≪ / RTI > Among these bridges, recently constructed bridges have been constructed with both sides of the roadway, but there is no built-in bridge that allows people to pass through the bridges built for the main purpose of vehicle movement. In addition, recently, leisure culture has been developed, and bicycles, which are popularly used as environment-friendly transportation means, have been widely used. Therefore, bicycle roads are installed in many bicycle roads for safe ride of the bicycle. It is inevitable that the bicycle road is temporarily disconnected at the bridge portion as described above. Conventional extension guides have a structure that can not effectively cope with the expansion and contraction of the bridge top plate and the loads due to vibration or expansion and contraction due to the passage of the vehicle. Thus, when a long time elapses, the bottom surface of the extended guide is irregularly deformed It has a blight that causes serious harm. That is, the top plate of the bridge repeats expansion and contraction in the longitudinal direction and the width direction depending on the season or the temperature change. The expansion in the width direction of the bridge top plate will have little effect on the extended guide, In other words, when the vehicle or the pedestrian's new direction is changed according to the direction of the passage of the vehicle, the pedestal of the extended car is lifted or opened because it directly affects the extended cargo installed on the side of the bridge. It happens frequently. In particular, the construction of the expanded bridge due to the expansion and contraction of the bridge as described above causes a serious problem to the structural stability of the expanded bridge, and periodical inspection and maintenance are indispensable. In addition, the expansion and contraction of the bridge itself as well as the expansion and contraction of the bridge itself occur as described above. Compared with a bridge made of reinforced concrete, most of the expanded bridges made of metal brackets and steel pipes are different from each other. Torsion and flaring are occurring in a serious manner. In addition, the existing extension India is very complicated structure and it is composed of many parts, so it is very troublesome to work and construction, and the construction period is very long as a whole, which causes considerable obstacles to traffic flow and requires a lot of manpower, And can be extremely uneconomical.

Korean Registered Patent No. 10-1428742 (Apr. 2014, 04)

An object of the present invention is to provide an enlarged structure including rollers for avoiding loads due to expansion and contraction due to vibration and temperature of existing bridges in securing delivery by extending bridges.

In addition, one embodiment of the present invention aims at providing an enlarged structure that avoids loads due to elongation and shrinkage due to vibration and temperature, by securing an elongation / shrinkage section in which the metal material of the bridge can be stretched or moved during vibration.

Another object of the present invention is to provide an enlarged structure including a guide for preventing the metal material of the bridge from being separated from the other structure when it is stretched or vibrated.

Another object of the present invention is to provide an enlarged structure including a stopper for preventing the metallic material of the bridge from being separated from the other structure when it is stretched or vibrated.

It is also an object of the present invention to provide a structure for connecting structures of bridges to each other and modularizing a plurality of structures corresponding to expansion and contraction and vibration.

According to an embodiment of the present invention, there is provided a cantilever comprising: a plurality of cantilevers connected to a bridge; A lower plate member on which both end portions are respectively supported by a cantilever; An upper plate member positioned on the lower plate member; And a stretch accommodating module connecting the lower plate member and the cantilever, wherein the stretch retracting module comprises: one or more holders fixed to the cantilever; A guide connected to the holder and positioned above the cantilever to guide the lower plate member in the direction of the expansion and contraction of the lower plate member; And at least one support roller rotatably positioned between the cantilever and the lower plate member and connected to the holder and supporting the lower plate member.

The lower plate member may include a stopper extending downward from the end in the extending and retracting direction by a predetermined length.

Further, the stopper can be in contact with the support roller supporting the lower plate member by the stretching, and the contact surface can be formed with the same curvature as the outer circumferential surface of the support roller.

Further, the lower plate member may include a latching portion on each of both end sides, and the guide may further include a slot for guiding the latching portion at one end of the lower plate member so as to be slidable in the expansion and contraction direction.

The elongated hole may guide the retaining portion formed on the lower plate member supported by the support roller so as to be slidable in the stretching direction.

A fixing part fixed to the lower plate member; And a fixing member including a rib portion connecting and supporting the top plate member and a cushioning protrusion positioned between the top plate member and protruding from the rib portion.

Further, the cantilevers for supporting the lower plate member and the cantilevers fixed to the lower plate member by the stretch accommodating module can be alternately arranged.

An embodiment of the present invention can provide an enlarged structure including a roller to avoid load due to expansion and contraction due to vibration and temperature of existing bridges in securing delivery by extending a bridge.

One embodiment of the present invention can provide an expansion structure that avoids loads due to expansion and contraction due to vibration and temperature, by securing an expansion / contraction section in which the metal material of the bridge can be expanded or contracted during vibration.

In addition, one embodiment of the present invention can provide an enlarged structure including a guide for preventing the metal material of the bridge from being separated from the other structure when it is stretched or vibrated.

In addition, one embodiment of the present invention can provide an enlarged structure including a stopper for preventing the metallic material of the bridge from being separated from the other structure at the time of stretching or vibrating.

In addition, an embodiment of the present invention can provide a structure for connecting structures of bridges to each other, and modularizing a plurality of structures corresponding to stretching and vibration.

1 is a perspective view showing a structure of an extended guide structure for a bridge according to an embodiment of the present invention;
Fig. 2 (a) is a view showing a coupling structure of an expansion / contraction accommodating module according to an embodiment of the present invention, Fig. 2 (b)
FIG. 3 (a) is a view showing the lower plate member according to another embodiment of the present invention, FIG. 3 (b) is a view showing the upper plate member support structure of the lower plate member, Shown drawing
FIG. 4A is a side view of another embodiment of the present invention, FIG. 4B is a side view of still another embodiment, FIG. 4C is a side view of a lower plate member, FIG. 5 shows another embodiment of the cushioning member positioned;
FIG. 5 (a) is a view showing a connection structure between a top plate member and a bottom plate member according to another embodiment of the present invention, FIG. 5 (b) is a perspective view of a fixing member showing a buffering projection of the fixing member

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example and the present invention is not limited thereto.

In the following description of the present invention, a detailed description of known technologies related to the present invention will be omitted when it is determined that the gist of the present invention may be unnecessarily blurred. The following terms are defined in consideration of the functions in the present invention, and may be different depending on the intention of the user, the operator, or the custom. Therefore, the definition should be based on the contents throughout this specification.

The technical idea of the present invention is determined by the scope of claims, and the following embodiments are merely a means for effectively explaining the technical idea of the present invention to a person having ordinary knowledge in the technical field to which the present invention belongs.

The extended guide structure for bridges of the present invention is a structure capable of mitigating or avoiding internal stress caused by expansion and contraction due to vibration or temperature change transmitted from a vehicle or a ground to a bridge, Accordingly, the interval between the respective components to be described later can be adjusted.

이므로 최저기온 영하 50도이고 최고기온 영상 50도일 때 1 m 당 신축길이는 약 1.23 mm 가 될 수 있다. 따라서, 본 고안의 교량용 확장 인도 구조물은 이러한 재료의 팽창계수를 고려하여 설계될 수 있다.For example, when the material is iron (Fe), the coefficient of thermal expansion of iron is about

Therefore, when the minimum temperature is minus 50 degrees and the maximum temperature image is 50 degrees, the extension length per 1 m can be about 1.23 mm. Therefore, the extended guide structure for bridges of the present invention can be designed in consideration of the expansion coefficient of such a material.

1 is a perspective view illustrating a structure of an extended bridging structure according to an embodiment of the present invention.

Referring to FIG. 1, the extended bridge structure for a bridge may be positioned to extend laterally from the bridge 1 in the direction in which the vehicle or the like passes, and may include a cantilever 100, a lower plate member 200, The upper plate member 300, and the elastic expansion and accommodation module 400.

A plurality of cantilevers 100 may be connected to the cantilever 100 by bolts or the like and the lower plate member 200 may be positioned on the upper side of the cantilever 100 and the lower plate member 200 may be connected to the cantilever 100 . The lower plate member 200 can support the upper plate member 300 positioned on the upper side of the lower plate member 200.

Here, the cantilevers 100 may be spaced apart from each other by a predetermined distance and connected in a direction perpendicular to the longitudinal direction of the bridge. The two ends of the lower plate member 200 are positioned on the adjacent two cantilevers 100, And can be supported. The cantilever 100 and the lower plate member 200 can be coupled by the expansion and contraction accommodating module 400. The cantilever 100 can be expanded and contracted in the elongating and contracting direction of the lower plate member 200, So that the movement of the movable member 100 in the longitudinal direction is limited. The structure of the coupling will be described later in detail with reference to Fig.

As described above, the lower plate member 200 including one of the objects for supporting the upper plate member 300 is formed of a metal material so as to have predetermined strength, while the upper plate member 200, which is positioned on the lower plate member 200, (300) is provided for the purpose of walking, and thus may be formed of a material other than a metal material. E.g. The upper plate member 300 may be made of wood or urethane, and in this case, the stress caused by the expansion and contraction may not be considered.

FIG. 2 (a) is a view showing a coupling structure of the expansion and contraction accommodating module 400 according to an embodiment of the present invention, and FIG. 2 (b) is a view showing the relationship between the support roller 430 and the stopper 210.

Referring to FIG. 2, the extension / contraction accommodating module 400 may include a holder 410 and a guide 420.

Specifically, the holder 410 may include at least one support 414 and a body 412 fixed or coupled to the upper surface of the cantilever 100, and the support 414 and the body 412 may be provided at one point And the through-hole can be coupled and fixed by the tightening portion 413. [0051] As shown in FIG. The fixation may be achieved by rotating the support portion 414 about the through-hole to the upper surface of the cantilever 100. At this time, when the upper surface of the cantilever 100 is loosely engaged with the cantilever 100, the height compensating member 415 can be engaged and fixed by interposing the height compensating member 415 between the cantilever 100 and the supporting portion 414.

As described above, when the cantilever 100 and the support portion 414 are engaged and fixed, the body 412 and the support portion 414 can be fixed through the tightening portion. Here, the tightening portion 413 may be, for example, a bolt, and means a means for fixing the body 412 and the supporting portion 414 by means of rotation or the like.

A shaft hole 411 may be formed in the body 412 and the shaft hole 411 may be aligned with the shaft hole 421 formed in the guide 420. The two shaft holes 411 and 421 are positioned so as to penetrate through the shaft holes 411 and 421 and the support roller shaft 431 formed in the support roller 430 can be inserted into the shaft holes 411 and 421. The other support roller shaft formed at the opposite end of the support roller shaft 431 may be connected to the support roller shaft 431 at both ends by positioning the holder 410 at the opposite end as described above. The support roller 430, the guide 420, and the holder 410 may be coupled by the connection.

Referring to FIG. 2 (a), the lower plate member 200 may be positioned at least partially between two opposing surfaces of the 'C' shaped guide 420, Can be seated. At this time, when the displacement movement occurs in the longitudinal direction of the lower plate member 200 by vibration or expansion or the like, the support roller 430 can assist the displacement movement. The guide 420 can guide the lower plate member 200 by the two opposing surfaces to guide the displacement movement of the lower plate member 200 in the longitudinal direction.

Since the lower plate member 200 reciprocates partway due to the expansion and contraction, each of the points of the lower plate member 200 is formed with an elongation and contraction section. On both sides of the guide 420, (422) may be formed. The engaging portion 220 is formed at the position of the lower plate member 200 corresponding to the elongated hole 422 in the elongated hole 422 so that the engaging portion 220 protrudes outwardly of the guide 420 through the elongated hole 422 , The lower plate member 220 can be guided and stopped in the stretching direction by the elongated hole 422. [

The elongated hole 422 may be extended by a predetermined length in the elongating and contracting direction so that the elongating and contracting accommodating module 400 may be inserted into the elongated hole 422, It is possible to guide the movement of the latching part 220 included in the lower plate member 200 supported by the supporting roller 430 of the lower plate member.

For example, when the two support rollers 430 support the end portions of one lower plate member 200, the elongated holes 422 can receive the extension and retraction portions of the two fastening portions 220 As shown in FIG.

2 (b), the support roller 430 can support the lower plate member 200 so as to minimize the marring force in the stretching and shrinking direction and move without generating stress. Two supporting rollers 430 are connected to the guide 420 shown in Figure 2 and the two supporting rollers 430 are supported by one cantilever 100 and two adjacent cantilevers 100 To support the lower plate member 200 that is to be placed.

The lower plate member 200 may be arranged in the longitudinal direction of the bridge 1 and at least a portion of the two lower plate members 200 may be received on one guide 420, And can be positioned with an interval maintained. The predetermined interval is an interval determined in accordance with the expansion coefficient of the above-described material. It is preferable that the above-mentioned interval is maintained at twice the elongated length when the lower plate member 200 is inflated to the maximum by the stretching length.

When the lower plate member 200 whose both ends are supported by the support rollers 430 is contracted, the length of the contracted lower plate member 200 is set such that the length of the contracted lower plate member 200 Can be formed larger than the length. If the length of the lower plate member 200 contracted to a length smaller than the inter-shaft length of the two support rollers 430 is formed, it is possible to remove the lower plate member 200 from the structure when there is no member capable of fixing or pulling the lower plate member 200 have.

Therefore, in order to prevent the dropout, stoppers 210 may be formed on both end faces of the lower plate member 200. [ The stopper 210 may be extended downward from the end face of the lower plate member 200 by a predetermined length and the extended stopper 210 may face the support roller 430 and face the support roller 430, That is, the curvature corresponding to the outer circumferential surface of the base plate. When the lower plate member 200 is contracted, the curved surface formed on the stopper 210 may have an elongation / shrinkage section within a predetermined section, but the lower plate member 200 may be detached from the elongation / shrinkage section due to breakage, vibration, It is possible to prevent the lower plate member 200 from being detached from the structure.

3 (a) is a view showing a lower plate member 200 according to another embodiment of the present invention, (b) is a view showing a supporting structure of a top plate member 300 of a lower plate member 200, And the lower plate member 270 supports the roller 250. As shown in Fig.

With reference to Fig. 3, another embodiment of the present invention described with reference to Figs. 1 and 2 will be described. 3 (a) shows a structure in which three lower plate members 200 are arranged in a direction in which the cantilever 100 extends. Of course, the lower plate member 200 may include a plurality of three or more plates, but the three lower plates 200 may be positioned so that the two lower plate members 200 located at both ends of the cantilever 100 are connected to the end plate members 290, The lower plate member 200 positioned between the two end plate members 290 is referred to as a middle lower plate member 270.

The first end plate member 290 and the last end plate member 290, which are arranged with respect to the extended direction of the cantilever 100, may be connected to each other by a roller 250. That is, since the axis of the roller 250 formed on both ends of the roller 250 can be connected to the end plate member 290, more than half of the circular cross section of the roller 250 is buried in the end plate member 290 Can be rotated. The unburied portions are exposed to the upper side to support the upper plate member 300, and the vibration transmitted to the structure or the movement due to the expansion and contraction occurring in the longitudinal direction of the bridge can be canceled. Therefore, a segment section that can be formed on the top plate member 300 as shown in FIG. 3 (b) can be formed in a state where it is not formed as much as in the embodiment shown in FIG.

3 (c), the lower plate member 200 includes a middle lower plate member 270 positioned at the center of the cantilever 100 in the longitudinal direction, and the lower central plate member 270 includes a roller The roller 250 can be supported in a state in which both ends of the cantilever 100 are supported by two adjacent cantilevers 100 without being directly connected to the cantilevers 250.

Since the roller 250 rotates about an axis, the middle lower plate member 270 must support the roller 250 upward without causing friction against the rotation of the roller 250, And an auxiliary roller 271 for assisting rotation.

One or more of the auxiliary rollers 271 may be included, but embodiments that support the rollers 250 on both sides from the central axis of the roller 250, including two or more as shown in (c), may be more stable.

FIG. 4A is a side view of another embodiment of the present invention, FIG. 4B is a side view of still another embodiment, FIG. 4C is a side view of a lower plate member, Fig. 5 is a view showing another embodiment of the buffer member positioned.

FIG. 4 is a sectional view showing another embodiment of the present invention, in which the upper plate member 300 and the lower plate member 200 are joined to each other with reference to FIG. 4 (a). Here, the upper plate member 300 refers to a thin urethane layer 310 including a urethane material, and the lower plate member 200 can be a lower plate member 200a formed to have a width corresponding to a predetermined width that can be walked . In this case, since the urethane layer 310 having elasticity can be accommodated in the urethane layer 310 due to expansion and contraction of the lower plate member 200a, stress and displacement due to elongation and contraction between the lower plate member 200a and the urethane layer 310 Without the need for separate members.

4 (b) and 4 (c), the cushioning member 280 is positioned at a position where the two lower plate members 200a are opposed to each other, and the lower plate members 200a ) To compensate for the spacing gap. Here, the cushioning member 280 means rubber that is hardened to a predetermined level, and means a means for compensating for the gap due to the expansion and contraction of the lower plate member 200a.

Referring to (c), the cushioning member 280 may include a cavity 281 therein so that the cushioning member 280 can be compressed to receive the stress even when subjected to compressive stress. It is possible to further increase the moving range of the moving object.

5 (a) is a view showing a connection structure of the upper plate member 300 and the lower plate member 200 according to another embodiment of the present invention, and FIG. 5 (b) is a view showing a buffering protrusion 261 of the fixing member 260 Is a perspective view of the fixing member (260).

1 and 2, in the embodiment described above, the upper plate member 300 and the lower plate member 200 are connected and the upper plate member 300 and the upper plate member 300 are connected to each other And may be a fixing member 260 as illustrated. The fixing member 260 can be positioned between the two upper plate members 300 and can be fixed to the lower plate member 200 and the buffering protrusion 261, the fixing portion 262, the supporting portion 263, and the rib portion 264, . ≪ / RTI >

Specifically, the fixing member 260 can be brought into contact with the fixing portion 262, which is a contact surface with the upper surface of the lower plate member 200, by a fixing means such as a bolt or welding. In the case of fixing by bolts, the bolt head portion may be exposed to the outside, so that the support portion 263 on which the top plate member 300 is supported may be formed at a height higher than the protruding height of the bolt head portion.

The supporting member 263 of the fixing member 260 is biased toward the top plate member 300, that is, when the top plate member 300 is positioned on both sides of the rib 264, The upper plate member 300 may be formed only in one direction in which the upper plate member 300 is located. Here, ribs 264 may be located at positions where the upper plate members 300 extend upward from the support portions 263 and face each other. The ribs 264 protrude from the ribs 264 toward the upper plate member 300 The buffer protrusion 261 may be formed.

Further, the buffering protrusion 261 is formed in such a manner that as the lower plate member 200 is contracted, the interval between the lower plate member 200 and the plurality of fixed members 260 fixed becomes narrower, Compressive stress can be applied to the top plate member 300 positioned between the members 260. [ In this case, the buffering protrusion 261 can perform a function for relieving the compressive stress. Here, the buffer protrusion 261 may be formed of a metal or an elastic body having elasticity.

One or more stretch accommodating modules 400 may be combined with one cantilever 100 to implement the above-described examples, but in this case, it is assumed that the lower plate member 200 can be stretched in both directions.

That is, when one end is fixed when the elongating and shrinking direction occurs in the longitudinal direction, and when the other end is free, the elongation and contraction can be performed in one direction. In this case, the intervals of the respective structures are adjusted in consideration of the expansion coefficient depending on the material forming the structure . For example, when the cantilevers extend in the transverse direction with respect to the direction of travel of the bridge 1 and a plurality of cantilevers are arranged in the traveling direction, only the cantilevers 100 corresponding to the odd- And the end of the lower plate member 200 may be fixed to the cantilever 100 to which the elastic accommodating module 400 is not coupled by a method such as welding.

That is, the cantilever 100 supporting the lower plate member 200 and the cantilever 100 fixed to the lower plate member 200 by the stretching and receiving module 400 can be interleaved alternately.

As an example of various modifications by those skilled in the art, it is possible to further include unillustrated railing, and the position can be changed by expansion and contraction of the bridge when the railing is connected to the cantilever 100, And the case where the internal stress between the structures is relaxed by means such as the buffer member 280.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. . Therefore, the scope of the present invention should not be limited to the embodiments described, but should be determined by the scope of claims for utility model registration as well as the claims for utility model registration described below.

1: Bridge
100: cantilever
200, 200a: lower plate member
210: Stopper
220:
250: roller
260: Fixing member
261: buffer protrusion
262:
263:
264:
270: central lower plate member
271: Auxiliary roller
280: buffer member
281: Space
290: end plate member
300: upper plate member
310: Urethane layer
400: Retractable module
410: Holder
411: Slippery
412: Body
413:
414: Support
415: height compensation member
420: Guide
421:
422: Long hole
430, 430a: Support roller
431: Support roller shaft

Claims (7)

A plurality of cantilevers connected to the bridge;
A lower plate member having both ends supported by the cantilever;
An upper plate member positioned above the lower plate member; And
And a stretch accommodating module connecting the lower plate member and the cantilever,
The expansion / contraction accommodating module includes:
At least one support capable of being fixed to the cantilever, and a body coupled to the at least one support by a tightening portion, the holder being engaged with the cantilever through engagement of the cantilever and the support;
A guide connected to the holder and positioned above the cantilever to guide the lower plate member in the direction of expansion and contraction of the lower plate member; And
And at least one supporting roller rotatably connected to the holder between the cantilever and the lower plate member and supporting the lower plate member,
Wherein a through hole is formed at one point of each of the support portion and the body and the through hole of the support portion and the through hole of the body are engaged by the tightening portion.
The method according to claim 1,
Wherein the lower plate member includes a stopper extending a predetermined length downwardly from an end of the elongate direction.
The method of claim 2,
Wherein the stopper can be in contact with the support roller supporting the lower plate member by the stretching shafts and the contact surface is formed with the same curvature as the outer circumferential surface of the support roller.
The method according to claim 1,
Wherein the lower plate member includes engaging portions on both end sides thereof,
Wherein the guide further comprises a slot for guiding the engaging portion at one end of the lower plate member so as to be slidable in the elongating direction.
The method of claim 4,
Wherein the elongated hole is capable of guiding the engaging portion formed on the lower plate member supported by the supporting roller so as to be slidable in the elongating and contracting direction.
The method according to claim 1,
A fixing part fixed to the lower plate member; And
And a fixing member including a rib portion connecting and supporting the upper plate member and a cushioning protrusion positioned between the upper plate member and protruding from the rib portion.
The method according to claim 1,
Wherein the cantilever supporting the lower plate member and the cantilever fixed to the lower plate member are alternately arranged by the expansion and contraction accommodating module.

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