KR20040029847A - Fingerblock for bridge coupling - Google Patents

Abstract

PURPOSE: A finger block for coupling bridges is provided to manufacture easily and to change the structure in various shapes easily. CONSTITUTION: The finger block for coupling bridges comprises the steps of fixing many primary bearing pieces(210) formed in the square plate and many secondary bearing pieces(220) which are shorter than the primary bearing pieces(210) relatively to assembling bars(231,232) in order, fitting secondary bearing pieces(220) between joints(211) which form one ends of the primary bearing pieces(210), projecting finger units(212) which forms the other ends of the primary bearing pieces(210) longitudinally from the secondary bearing pieces(220), forming finger fitting grooves between finger units(212), forming fastening holes(240) which penetrate joints(211) and secondary bearing pieces(220) vertically, and forming the width(W1) of the primary bearing piece(210) to be narrower than the width(W2) of the secondary bearing piece(220).

Description

Fingerblock for bridge coupling

The present invention relates to a finger block for bridge connection, which is installed at the tip of a bridge and supports the loads to the spaced space between the bridges while connecting the bridges in a flexible manner, and is easy to manufacture and easily change the structure in various forms. It relates to a bridge block finger block.

Bridges placed on the upper part of the bridge naturally extend or shorten in the axial direction due to the temperature difference according to the seasonal change, and the length in the axial direction is forcibly extended by external forces such as load and wind applied to the bridge. As it is either reduced or reduced, a distance between the ends of the bridges which are opposed to each other should be provided for the change of length in the direction of the bridge.

If the bridges extend in the direction of the bridge and the ends of the bridges are in close proximity to each other, the vehicle can smoothly run the bridge joints, but the bridge is reduced in the direction of the bridges so that the separation distance between the bridges of the bridges is extended In this case, the wheel of the vehicle interferes with the bridge connection part, and the ride comfort is greatly reduced. Furthermore, if the extension length in the bridge direction is greater than this (the longer the bridge length is in the bridge direction, the larger the extension length is). As the separation distance between them becomes larger, a serious problem arises that the wheels of the vehicle fall completely into the bridge connecting portion.

Therefore, a separate bridge connecting mechanism should be provided at the tip of the bridge so that the loads to the spaces between the mutually opposing bridges are supported by the bridge connecting mechanism.

The bridge connecting structure for supporting the loads to the spaces between the bridges while flexibly connecting the bridges has already been proposed and widely used, and the rail type bridge connecting structure using the rail as the bridge connecting mechanism, and the finger block bridge The finger block type bridge connecting structure used as a connecting mechanism is representative.

The rail-type bridge connecting structure can be said to have a somewhat larger number of members, and it can be said that the mutual assembly work between the members is cumbersome, but the manufacture of the members is still widely used.

However, such a rail-type bridge connecting structure uses a rail as a bridge connecting mechanism, and these rails form a structure arranged in a direction perpendicular to the bridge direction, that is, in the width direction of the bridge, so that the rail when the vehicle passes therethrough Since the interference with the vehicle wheels is severely generated, the ride comfort of the vehicle is lowered, and the problem that the joint is greatly generated due to the interference is caused.

In order to solve the shortcomings of the rail type bridge connection structure, a finger block type bridge connection structure has been proposed, which will be described in more detail with reference to FIGS. 1A to 1C.

1A and 1B, in the conventional finger block type bridge connection structure, the base panel 5 is respectively seated on the upper surface of the tip reinforcement portion C2 of the bridge BG; Blocks 20 and 20 'are placed on the base panel 5 so as to be opposed to each other and interlock with each other, and the base panel 5 and the finger blocks 20 and 20' are provided through fixing members F1 such as anchors. ) Is fixed to the tip reinforcement portion C2 of the bridge (BG; BG '), while both ends of the drip panel 400 are butted to each other via a fixing member F2 such as an anchor (BG; BG). It forms a structure that is respectively fastened to the end surface of the reinforcement portion (C2) of the ').

As illustrated in FIG. 1C, the finger blocks 20 and 20 ′ protrude from the main body portion 21 in which the fastening holes 21 a are formed, with the finger portions 22 at equal intervals, and the finger portions 22. Finger insertion groove (H1) is formed between the) forms a structure.

When the separation distance L between the bridges BG and BG 'approaches, the finger block 22 of the finger block 20 installed on one bridge BG is provided on the other bridge BG'. Finger block 20 installed in the other bridge BG 'in the finger insertion groove H1 of the finger block 20 installed in one bridge BG while being inserted into the finger insertion groove H1 of 20'. ') Is inserted into the finger 22, a pair of finger blocks (20; 20') are engaged with each other like a pod with two hands. On the other hand, when the separation distance (L) between the bridge (BG; BG ') is far apart, a pair of finger blocks (20; 20') installed therein are separated from each other, a pair of finger blocks (20; 20 ') ), The fingers 22 of these finger blocks 20; 20 'are arranged side by side to face each other in the direction perpendicular to the axial direction, and support the load to the space between the bridges BG; BG'. Done.

Therefore, when the vehicle travels through the connecting portion of the bridge BG (BG '), the vehicle wheel passes through the pair of finger blocks 20 and 20', the finger portions 22 of which are directed in the bridge direction of the bridge. Since the protruding and the finger insertion groove (H1) also protrudes in the bridge axial direction, the vehicle wheel naturally passes over these finger blocks (20; 20 '), to prevent the deterioration of ride comfort, due to interference The occurrence of joints is greatly reduced.

However, the finger blocks 20 and 20 'according to the prior art have a main body portion 21 and a finger portion 22 formed integrally, so that the product cost is considerably high due to manufacturing difficulties, Since the structural change is virtually impossible, a problem arises in that the use of the finger block is restricted.

In detail, the conventional finger blocks 20 and 20 'are formed integrally with the main body portion 21 and the finger portion 22 as mentioned above, so that a metal material in the form of a hexahedral block is used as a machine tool. Cutting or cutting with oxygen welding to produce a finger block (20; 20 '), which is very difficult in practice, which is a major cause of the increase in product cost.

Moreover, the larger the vertical height T3 of the finger blocks 20 and 20 ', the more difficult the cutting or cutting operations are. Therefore, the vertical height T3 of the finger blocks 20 and 20' is inevitably constrained. In order to reduce the man-hours of cutting or cutting operation, the width W3 of the finger portion 22 must be widened. Therefore, it can be said that the structural changes to various forms of the finger blocks 20 and 20 'are virtually impossible.

Accordingly, the present invention has been invented to solve the above problems, and an object thereof is to provide a bridge block finger block that can be easily manufactured and easily changed in various forms.

Figure 1a is a cross-sectional view showing the installation state of the finger block according to the prior art,

1B is a top view of FIG. 1A,

1C is a perspective view of the finger block shown in FIGS. 1A and 1B;

Figure 2a is a cross-sectional view showing the installation state of the finger block according to the invention,

2b is a plan view of FIG. 2a,

FIG. 2C is a partial perspective view of the finger block shown in FIGS. 2A and 2B;

3A and 3B are diagrams illustrating another example of a finger block according to the present invention, and correspond to FIGS. 2A and 2C.

-Explanation of terms for the main parts of the accompanying drawings-

100; Base panel 110; flange,

200,200 '; Finger block 210; First support piece,

210a, 210b; Assembly bar insertion holes, 211; copula,

212; Finger portion 220; Second support,

231,232; Assembly bars, 240; Fastening Hole,

300; First reinforcement panel, 400; Drip panel,

A; Asphalt, BG, BG '; Bridge-Built Structure,

C1; Bridge body portion, C2; Reinforcement,

F1, F2, F3; Fixing member H1; Finger Insertion Groove,

L; Distance between bridges, R1, R2; rebar.

In order to achieve the above object, the present invention provides a plurality of first support pieces that form a quadrangular plate, and a plurality of second support pieces that have a relatively shorter length than the first support pieces while forming a quadrilateral plate form an assembly bar. They are alternately fitted to each other and fixed to each other; The second support piece is sandwiched between the joining portions forming one tip of the first support piece, so that the finger portion forming the other tip of the first support piece protrudes in the longitudinal direction from the second support piece, and a finger insertion groove is formed between the fingers. And a fastening hole for penetrating the first support piece joint and the second support pieces which are fixed to each other in the longitudinal height direction, and the width of the first support piece is smaller than the width of the second support piece. It is.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

According to FIGS. 2A to 2C, the finger blocks 200 and 200 ′ according to the present invention have a plurality of first support pieces 210 forming a quadrangular plate, and relative to the first support pieces 210 forming a quadrangular plate. The plurality of second support pieces 220 having short lengths are alternately fitted to the assembling bars 231 and 232 sequentially and faced to each other, and are joined between the joint portions 211 forming one end of the first support piece 210. The second support piece 220 is fitted so that the finger portion 212 constituting the other end of the first support piece 210 protrudes in the longitudinal direction from the second support piece 220, and between the finger portions 212. A finger insertion groove H1 is formed in the first hole, and a fastening hole 240 penetrating the first support piece joint portion 211 and the second support piece 220 secured to each other in the vertical height direction is formed, and the first support portion is formed. The width W1 of the piece 210 forms a structure smaller than the width W2 of the second support piece 220.

In the manufacturing operation thereof, the first supporting piece 210 and the second supporting piece 220 having narrow widths W1 and W2 are alternately inserted into the assembly bars 231 and 232, and then the assembly bars 231 and 232. The first support piece 210 and the second support piece 220 to be coupled in intimate contact with each other, or the both ends of the assembly bars 231 and 232 are applied to each other by applying a strike to both ends of the The first support piece 210 and the second support piece 220 are coupled to each other in close contact with each other by welding to the support pieces 210 and 220 positioned at the outermost sides. Subsequently, when the assembly of the first and second support pieces 210 and 220 and the assembly bars 231 and 232 is completed, the first support piece joining portions 211 and the second support pieces 220 fixed to each other are penetrated in the vertical height direction. The fastening holes 240 are formed to complete the finger blocks 200 and 200 '.

Finger blocks 200, 200 'according to the present invention, although it is cumbersome to assemble each of the components (210, 220, 231, 232), it is easy to manufacture these components (210, 220, 231, 232), so that many finger blocks (200, 200') at a low cost ) Can be manufactured. In addition, the molding of the support pieces 210 and 220 is free, so that the finger blocks 200 and 200 'can be easily changed in various forms. On the other hand, since both the first support piece 210 and the second support piece 220 are disposed in the axial direction, the finger portion 212 and the finger insertion groove H1 of the first support piece 210 are also disposed in the axial direction. As a result, the vehicle wheel naturally passes over these finger blocks 200 (200 '). Therefore, problems such as deterioration of ride comfort and noise generation due to interference are not caused.

2A to 2C, the vertical height T1 of the first support piece 210 is lower than the vertical height T2 of the second support piece 220, so that the second support piece ( The bottom portion of the 220 is projected downward from the junction portion 211 of the first support piece 210.

In this case, there is an advantage that the manufacturing is quite convenient, but there is a disadvantage that a somewhat disadvantageous structure to support the load stably.

In detail, the vertical height T1 of the first support piece 210 and the vertical height T2 of the second support piece 220 are the same over the entire length, so that the metal sheet material is It is possible to easily process the bottom surface of the first support piece 210 and the second support piece 220 in a single operation to cut in the longitudinal direction. On the other hand, since the load transmitted to the first support piece 210 is transmitted to the second support piece 220 through the assembly bars 231 and 232, deformation and breakage of the assembly bars 231 and 232 are caused, and the finger block ( The second support piece 220 must support all the loads applied to the 200, 200 '). Therefore, concentrated stress is applied to the interface between the second support piece 220 and the base panel 100 supporting the base plate 100, and thus, the base panel 100 is deformed or damaged, or the life of the finger blocks 200 and 200 'is extended. The problem of shortening is caused.

Meanwhile, FIGS. 3A and 3B show another example of the finger block according to the present invention, whereby the vertical height T1 ′ of the first support piece joining portion 211 is the second support piece 220. It is equal to the vertical height (T2) of, the vertical height (T1) of the first supporting piece finger portion 212 is formed lower than the vertical height (T1 ') of the bonding portion 211, the first supporting piece finger portion 212 ) And the second support piece 220 are formed to correspond to each other correspondingly.

According to the present embodiment, the bottom surface treatment of the first support piece 210 is somewhat complicated, so that manufacturing is relatively complicated. However, the load applied to the first support piece 210 is the first support piece 210. It is transmitted to the base panel 100 through the junction portion 211 of the, the load applied to the second support piece 220 is transmitted to the base panel 100 through the second support piece 220, the assembly bars (231,232) While the load transfer to () is prevented, the stress concentration by the load is suppressed as much as possible.

The present invention is not limited to the embodiment as described above, and of course, various modifications can be made without departing from the scope of the following claims.

For example, depending on the bridge connection structure, the vertical height (T1, T2) of the first and second support pieces (210, 220) constituting the finger blocks (200, 200 ') may be all formed the same, to increase the grip with the tire For this purpose, the top surface of the first and second support pieces 210 and 220 may be grooved or the corner portion thereof may be rounded. Similarly, the shape of the bottom surface of the first and second support pieces 210 and 220 may be variously modified according to the purpose. Can be.

According to the present invention as described above, a plurality of first and second support pieces having a different length and forming a quadrilateral plate are alternately fitted to the assembly bar in order to be fixed to each other, the finger portion of the first support piece is second The structure protrudes in the longitudinal direction from the support piece, which facilitates the manufacture thereof, and the structure can be easily changed in various forms.

In addition, it is possible to manufacture a finger block at a low cost, there is an effect that the product cost of the finger block is greatly reduced.

Claims (3)

A plurality of first support pieces 210 forming a quadrangular plate and a plurality of second support pieces 220 forming a quadrangular plate having a relatively shorter length than the first support piece 210 are assembled bars 231 and 232. They are alternately fitted to each other and fixed together. The second support piece 220 is sandwiched between the joining portions 211 forming one tip of the first support piece 210, so that the finger portion 212 forming the other tip of the first support piece 210 is formed. The first support piece joint part 211 and the second support piece 220 protruding in the longitudinal direction from the second support piece 220 in the longitudinal direction, and between the finger parts 212 are formed with a finger insertion groove H1 and are fixed to each other. Fastening holes 240 penetrating through the vertical height direction are formed, and the width W1 of the first support piece 210 is smaller than the width W2 of the second support piece 220. Finger block for bridge connection. According to claim 1, wherein the vertical height (T1) of the first support piece 210 is formed lower than the vertical height (T2) of the second support piece 220, the bottom portion of the second support piece 220 Finger block for bridge connection, characterized in that protruding downward from the junction portion 211 of the one support piece (210). The vertical height T1 'of the first supporting piece joining portion 211 is the same as the vertical height T2 of the second supporting piece 220, and the vertical length of the first supporting piece finger portion 212. Bridge height, characterized in that the height (T1) is formed lower than the longitudinal height (T1 ') of the junction portion 211, the first support piece finger portion 212 and the second support piece 220 corresponded to each other correspondingly. Finger block.