KR20190089653A - Finger joint with a bridging cover plate - Google Patents

Abstract

Disclosed is a finger joint capable of using a steel plate much thinner than an existing finger and easily receiving the vertical rotation of an upper structure of a bridge. The finger joint with a bridging cover plate includes: a bridging cover plate installed in a first structure and hung on a second structure through a gap to support the weight of a vehicle going over the gap, and allowing the first and second structures to be moved relative to each other in a direction in which the width of the gap changes; a first finger part connected to the bridging cover plate; and a second finger part installed in the second structure, allowing the structure to be moved relative to the first finger part in a direction in which the width of the gap changes.

Description

[0001] The present invention relates to a finger joint with a bridging cover plate,

The present invention relates to an improvement of a telescopic joint device provided between two structures having a clearance such as a gap between an upper structure and an upper structure of an elevated road or a bridge and the gap between the two structures varying, and particularly relates to improvement of a finger joint.

Generally, an upper structure of a bridge is expanded or contracted due to temperature change, drying shrinkage, creep, etc., and is moved according to a dynamic load, an earthquake, or the like caused by vehicle traffic. Therefore, a proper gap is established between the adjacent two upper structures at the time of the construction of the bridge according to the material, length, support structure, etc. of the bridge top plate. A stretch joint device is provided between the upper structure and the upper structure, and a finger type stretch joint is widely used.

Among modular expansion joints, when modular joints are used where the amount of expansion and contraction of the superstructure is very large, the number of components increases and the structure becomes complicated, making it difficult to achieve structural stability and economical efficiency.

If the fingers joint system is used in a place where the amount of expansion and contraction of the superstructure is very large, it is necessary to make the distance between the two fingers very large, so that the thickness of the necessary fingers becomes too thick, It is difficult to obtain it from the market. In addition, if the thickness of the steel plate is too large, it is difficult to handle because the steel plate is heavy, and it is very difficult to cut the steel plate into a finger shape and smooth the surface.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a finger joint in which the thickness of a steel plate necessary for manufacturing a finger joint can be significantly reduced compared to the conventional one.

Another object of the present invention is to provide a finger joint which is suitable for use as a medium, long, and very long bridge having a large amount of stretching, because the thickness of a steel plate necessary for manufacturing a finger joint can be significantly reduced .

Still another object of the present invention is to provide a finger joint that is excellent in structural stability and provides a good vehicle running ability as compared with the conventional one.

It is still another object of the present invention to provide a finger joint that can prevent line contact portions between finger joints and structures when a height difference is generated between two structures provided with finger joints.

It is a further object of the present invention to provide a finger joint that is also capable of lateral displacement between two structures with finger joints.

It is still another object of the present invention to provide a finger joint capable of accommodating various directions of movement between two structures spaced apart from each other installed in a curved bridge or a sash.

It is a further object of the present invention to prevent damage to the finger joint parts by making it possible to move in all the directions of up, down, left, right, front, and back within a limited range between two structures spaced apart during an earthquake, There is provided a finger joint in which no problem is caused in vehicle traffic.

The finger joint according to the present invention is installed between a first structure and a second structure that are spaced apart from each other by a gap and are expanded or contracted due to a temperature change or the like and are moved by an earthquake or the like to change the interval of the gap, A finger joint mounted on the first structure and extending across the gap to support a load of the vehicle passing over the gap, the distance between the gaps being variable A straddle plate portion for allowing relative movement between the first structure and the second structure in the direction of the first stiffener; A plurality of first fingers connected movably in a direction perpendicular to a direction in which the interval of the clearance changes and supported by the second structure, and a plurality of first fingers formed between the neighboring first fingers, A first finger rejection having first finger grooves; And a plurality of second fingers that can be inserted into the first finger grooves and a plurality of second finger grooves formed between the neighboring second fingers and into which the first fingers are inserted, And a second finger unit installed on the structure and capable of allowing relative movement with respect to the first finger in a direction in which the interval of the clearance changes.

A first support portion provided on the first structure and supporting the bottom surface of the staking plate portion on the first structure by being floated from the bottom of the first structure; a second support portion provided on the second structure and provided on the bottom surface of the staking plate portion on the second structure Projecting from the first structure or the first structure between the first support portion and the second support portion and projecting from the second structure toward the second structure, the second support portion being projected from the bottom of the second structure and slidably contacting the second structure, And an elastic pressing means provided on the protruding structure for elastically pressing the holding plate portion downward.

The first support portion may include: a groove member provided on an upper surface of the first structure or a bottom surface of the staking plate portion and having a spherical groove or a cylindrical surface groove; And an upper surface of the first structure and a bottom surface of the fastening plate portion, which are not provided with the groove member and are coupled to the spherical grooves or the cylindrical surface grooves to allow the fastening plate portion to pivot up and down, And a convex member having a surface.

Wherein a spherical groove or a cylindrical surface groove is formed on a bottom surface of the staking plate portion on the second structure and a convex spherical surface or a convex cylindrical surface coupled to the spherical groove or the cylindrical surface groove is formed on an upper surface of the second supporting portion, And may be provided with planar blocks.

A spherical groove or a cylindrical surface groove is formed on the bottom surface of the staking plate portion on the second structure and the second supporting portion is coupled to the spherical groove or the cylindrical surface groove formed on the bottom surface of the staking plate portion on the second structure, A convex spherical or convex cylindrical surface may be formed, and a lower surface may be provided with a planar engineering plastic block.

It is preferable that a support block supporting the first finger on the second structure and sliding on the second structure is provided on the bottom surface of the first finger on the second structure.

Wherein the first finger portion is coupled to the latching plate portion through a connecting means, the connecting means is a connecting member having a hole formed in a lower portion of the latching plate portion and coupled to the first finger, And an elastic support member provided between the connection member and the fastening plate portion and connected to the fastening plate portion and having an end portion inserted into the hole through the elastic support member, .

In some cases, the first finger portion is coupled to the staple plate portion through the connecting means, and the connecting means is a connecting member having a hole formed in the lower portion of the staple plate portion and coupled to the first fingering portion. A convex member provided at one of a bottom surface of the fastening plate portion and a position of being inserted into the hole and slidably contacting with the second structure and having a convex spherical surface or a convex cylindrical surface; And a concave member having a concave spherical surface or a concave cylindrical surface which is fitted to the convex spherical surface or the convex cylindrical surface and which is provided at the other of the bottom surface of the staking plate and the sliding contact with the second structure, Configuration can be performed.

The first finger portion is spaced apart from the staple plate portion and the filler is filled between the stapling plate portion and the first fingers so that the first fingers and the staple plate portions are allowed to rotate with respect to each other have.

Sometimes, the first finger portion may be integrally formed at an end portion of the staking plate portion.

Preferably, the second finger is fixed to the second structure through the fixing means while being supported through the metal block.

A base plate is installed on the bottom of the first structure and the second structure, and a stainless steel plate is provided on the base plate of the second structure.

At this time, the second structure may be provided with a slide support block that supports the first finger and slides on the bottom surface of the first finger.

It is preferable that the first finger portion is provided with a relatively movable transverse direction perpendicular to the throttling direction, which is a direction in which the clearance between the gaps is changed, through the connecting means.

Wherein the hole is longer than a length of the hole inserted in the convex member and the hole of the concave member in a transverse direction perpendicular to the throttling direction in which the interval of the clearance is changed so that the lateral movement of the first finger portion with respect to the engaging plate portion It may be acceptable.

Wherein the first finger portion is coupled to the staple plate portion through a connecting means, the connecting means is formed with a hole or a groove in a portion disposed at a lower portion of the staple plate portion and is coupled to the first fingering portion; And a second plate portion provided on the latch plate portion and inserted in the hole or groove to prevent the first finger portion from being detached from the latch plate portion and to be spaced apart from the hole or groove in a transverse direction And a departure-preventing portion provided so as to allow relative movement.

The second support portion includes a convex member provided at one of a bottom surface of the staking plate portion on the second structure and a position in which the second structure slidably contacts the second structure and has a convex spherical surface or a convex cylindrical surface; And a concave member having a spherical groove or a concave cylindrical surface which is provided on the other of the bottom surface of the staking plate and the sliding contact with the second structure on the second structure and is coupled to the convex spherical surface or the convex cylindrical surface Configuration can be performed.

According to the present invention, since the straddle plate portion is disposed immediately above the gap between the two structures disposed with a gap, and both sides of the straddle plate portion are respectively supported by the two structures, the sectional area supporting the axle load is supported by the wheel of the passing vehicle, The thickness of the steel plate is much smaller than that of the conventional fingers, so that it is possible to eliminate the difficulty of cutting a very thick steel plate into a finger shape and smoothly machining the surface.

According to the present invention, it is possible to provide a simple joint structure in which a joint system installed just above a gap between two structures can be a simple support structure using a simple steel plate, thereby providing a secure joint structure.

According to the present invention, the staking plate provided on the gap allows to solve complex and machining-related matters such as in a modular or finger joint which is generally used at present.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a finger joint excellent in usability for a super-long bridge which can be suitably used for a middle- and long-span bridge, particularly a very large amount of expansion and contraction.

In the bridge equipped with the finger joint according to the present invention, it is possible to install the first and second fingers, which have good running characteristics of the vehicle and have relatively weaker strength than the hanging plate, , Damage to the second finger can be minimized, and the thickness of the first and second fingers can be significantly reduced compared with the conventional one.

It is a matter of course that the entire first and second finger bottoms may be in contact with the second structure.

The finger joint according to the present invention is easy to be accommodated in the up and down direction rotation of the bridge superstructure, and is not complicated in structure, so that maintenance and repair are easy.

1 is a partial plan view of a finger joint having a staking plate according to the present invention;
2 is a cross-sectional view taken along line II in Fig. 1,
3 is a sectional view taken along the line JJ in Fig. 1 showing the installation state of the second finger portion,
4 is an enlarged cross-sectional view of the first supporting portion,
5 is an enlarged cross-sectional view of a second support portion and a connection portion,
6 is a cross-sectional view showing another example of the connecting means,
7 is a cross-sectional view showing an example of the installation of a support block provided on the first fingering bottom surface,
8 is a sectional view showing a modification of the finger joint having the staking plate portion according to the present invention,
9 is a sectional view showing another modification of the finger joint having the staking plate according to the present invention,
Fig. 10 is a sectional view showing a modification of Fig. 6,
11 is an exploded perspective view of the connecting means shown in Fig. 10, Fig.
12 is a cross-sectional view showing another modification of the connecting means,
Fig. 13 is a plan view of the connecting means shown in Fig. 12,
FIG. 14 is a sectional view showing a modification of FIG. 12,
15A to 15C are views showing other examples of the fastening plate portion and the first fingering connection means, respectively.

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

FIG. 1 is a partial plan view of a finger joint having a fastening plate according to the present invention, FIG. 2 is a sectional view taken along the line II in FIG. 1, FIG. 3 is a sectional view taken along line JJ in FIG. 1, Fig. 5 is an enlarged sectional view of the second supporting portion and the connecting portion. Fig.

1 to 5, a finger joint 100 having a staking plate according to the present invention includes two structures disposed with a gap 30, that is, between the first structure 10 and the second structure 20 So that the vehicle can smoothly pass over the clearance 30. [0051] As shown in FIG.

The first and second structures 10 and 20 are expanded or contracted due to temperature change, drying shrinkage, creep, or the like, so that the gap between the gaps 30 becomes wider or narrower. The first and second structures 10 and 20 are moved by a dynamic load or an earthquake due to starting or braking of a vehicle or a train running on the first and second structures 10 and 20 made of a bridge top plate or the like The interval of the clearance 30 is changed. An expansion joint is needed to receive the spacing change of these gaps 30.

A water receiver 40 is provided between the first and second structures 10 and 20 to prevent rainwater and the like from falling down through the gap 30.

As shown in FIGS. 2 and 3, a base plate BP is provided on the bottoms of the first structure 10 and the second structure 20. A stainless steel plate (SP) is provided on the base plate (BP) of the second structure (20). This stainless steel plate SP is for sliding contact and can be replaced by other sliding plates.

The finger joint (100) according to the present invention is equipped with a staking plate portion (110). The staking plate 110 is installed on the second structure 20 across the gap 30 in a state where the staking plate 110 is installed on the first structure 10 as a major feature of the present invention. The straddle plate 110 supports the load of the vehicle passing over the gap 30 and the first structure 10 and the second structure 10 in the direction in which the gap of the gap 30 varies in a state of being spread over the second structure 20 Allowing relative movement between the second structures 20. Since the entire cross section of the bridge in the direction perpendicular to the throat or in the longitudinal direction of the gap 30 receives a moment due to the dynamic load of the vehicle passing over the bridge, Can be greatly reduced.

Preferably, the staking plate 110 is supported by a first support part 120 installed on the first structure 10 and a second support part 130 installed on the second structure 20. The first support part 120 supports the bottom surface of the fastening plate part 110 in a state where the first support part 120 is installed on the first structure 10 and supports the bottom surface of the fastening plate part 110 at a predetermined height from the bottom of the first structure 10 It plays a role. The second support part 130 supports the bottom surface of the staking plate part 110 on the second structure 20 by being raised at a predetermined height from the bottom of the second structure 20 while the second support part 130 is installed on the second structure 20, And is in sliding contact with the structure (20).

The first support part 120 is provided on the upper surface of the first structure 10 and is provided on the bottom surface of the fastening plate part 110 with a groove member 121 formed with a spherical groove 121a and is coupled to the spherical groove 121a, And a convex member 123 having a convex spherical surface 123a that allows the plate portion 110 to pivot up and down.

Here, instead of the spherical groove 121a, a cylindrical surface groove may be formed. In this case, a convex cylindrical surface may be formed instead of the convex spherical surface 123a. Further, the groove member 121 and the convex member 123 can be reversed by reversing their positions up and down.

The spherical grooves 111 or the cylindrical surface grooves are formed on the bottom surface of the fastening plate 110 on the second structure 20. The second supporting portions 130 are formed on the bottom surface of the fastening plate 110, And an engineering plastic block 132 having a convex spherical surface 131 or a convex cylindrical surface coupled to the cylindrical surface grooves. Of course, the lower surface of the engineering plastic block 132 is in plane contact with the stainless steel plate SP provided on the second structure 20.

The first structure 10 between the first support part 120 and the second support part 130 is provided with an elastic pressing means 140 for elastically pressing the binding plate part 110 downward. The elastic pressing means 140 includes an elastomeric member 143 made of polyurethane or the like and attached to the outer peripheral surface of the shaft member 141 under the base plate BP and hooked on the engaging jaw 142, So that the elastic body 143 can be compressed through the nut 144 coupled to the shaft member 141 protruding from the shaft member 141.

Even if a sag is generated at the center portion of the straddle plate 110 when the vehicle passes over the straddle plate 110 installed as described above, the rotation of both ends of the straddle plate 110 can be transmitted to the first support 120 and the second The support portion 130 can be smoothly received.

The finger joint 100 according to the present invention is equipped with a first finger 150. The first fingers 150 are connected to the staking plate 110 in a state where they extend over the second structure 20 via the connecting means 160 and are supported by the second structure 20. The first finger 150 has a plurality of first finger 151 and a plurality of first finger grooves 153 formed between neighboring first fingers 151.

Preferably, the first finger 151 is supported by the second structure 20 via the support block SB provided on the bottom surface thereof. Since the distance between the support blocks SB is much smaller than the distance between the two points for supporting the fastening plate 110 and the first finger 151 mainly receives a compressive force capable of withstanding a load larger than a bending moment, The thickness of the plate portion 110 can be made much smaller than the thickness of the plate portion 110.

Since the support block SB provided on the bottom surface of the first finger 151 has to make sliding contact with the second structure 20, the bottom surface is preferably formed into a flat surface.

It is possible to replace the support block SB provided on the bottom surface of the first finger 151 with a slide support which supports the first finger 151 and slidably contacts the bottom surface of the first finger 151, The blocks may be fixedly mounted on the second structure 20. [ This can be easily understood by considering that the support block SB is fixed on the upper surface of the second structure 20 and slidably contacts the bottom surface of the first finger 151.

It goes without saying that the first finger 150 may be thickened and a sliding member may be provided on the bottom surface thereof.

Referring to FIG. 5, the connecting means 160 is equipped with a connecting member 161. The connecting member 161 has a hole 162 formed in a portion disposed at a lower portion of the mounting plate portion 110 and a portion disposed under the first finger 150 is coupled to the first finger 150 have. A sliding member 163 slidably contacting the second structure 20 is provided on the bottom surface of the connecting member 161. An engineering plastic such as polyamide or the like can be used as the sliding member 163. An elastic supporter 164 is provided between the connecting member 161 and the engaging plate 110 and the bolt inserted through the elastic supporter 164 and having an end inserted into the hole 162 165 are screwed together to serve as a connecting body. It goes without saying that other connectors such as pins instead of bolts 165 may be used. As the elastic support 164, a polytron disc made of polyurethane is suitable.

A sealing material 166 such as silicone is preferably filled between the stamper plate 110 and the first fingers 150 so as to seal between the stamper plate 110 and the first fingers 150. [ Thereby preventing water or other foreign matter from flowing into the inside.

Accordingly, the straddle plate 110 and the first fingers 150 are allowed to rotate slightly upward and downward with respect to each other.

The finger joint 100 according to the present invention is equipped with a second finger 170. The second finger 170 is installed in the second structure 20 and includes a plurality of second fingers 171 that can be inserted into the first finger grooves 153 and a plurality of second fingers 171 And a plurality of second finger grooves 173 that are formed between the first finger 151 and the second finger groove 173 and into which the first fingers 151 can be inserted. The second fingers 170 are installed in the second structure 20 to permit relative movement with respect to the first fingers 150 in a direction in which the intervals of the gaps 30 change. The second fingers 171 may be integrally connected through the connection portion 175.

3, the second fingering unit 170 includes a fixing unit 180 composed of a bolt B and an anchor means AM in a state of being supported via a metal block MB To the second structure (20). Preferably, the bolt B is fixed to the second structure 20 through the metal block MB. Occasionally, an engineering plastic block may be used instead of the metal block MB.

6 is a cross-sectional view showing another example of the connecting means.

The connecting means 160 is equipped with the connecting member 161, the concave member 167 and the convex member 168.

The connection member 161 has a hole 162 formed in the lower portion of the staking plate 110 and a lower portion of the connection member 161 disposed on the lower side of the first finging 150 is coupled to the first finger 150.

The concave member 167 is inserted into the hole 162 and moves in the horizontal direction together with the connecting member 161. A concave spherical surface 167a or a semicircular concave cylindrical surface is formed on the upper surface of the concave member 167. Further, the bottom surface of the concave member 167 is in sliding contact with the stainless steel plate SP on the second structure 20.

The convex member 168 is fixed to the bottom surface of the fastening plate portion 110 and has a concave spherical surface 167a or a convex spherical surface 168a or convex cylindrical surface coupled to the concave cylindrical surface.

The concave member 167 and the convex member 168 can be installed so that their mounting positions are turned upside down. The connecting member 161 may be elongated in a direction perpendicular to the throttling axis so that a plurality of concave members 167 or convex members 168 may be installed.

7 is a cross-sectional view showing an example of the installation of a support block provided on the first fingering bottom surface.

The support block SB provided on the bottom surface of the first finger 150 may be fixed to the bottom surface of the first finger 150 through the bolt B as shown in FIG. As the support block SB, a sliding material having a small coefficient of friction is preferable. An engineering plastic having a small friction coefficient of polyamide or the like is suitable. It is needless to say that other sliding materials such as PTFE may be used. A stainless steel plate (SP) is installed on the bottom of the second structure (20).

The rest are the same as those described with reference to Figs.

8 is a cross-sectional view showing a modification of the finger joint having the staking plate according to the present invention. 1 and 2 are referred to together.

Sometimes, the staking plate 110 shown in FIGS. 1 and 2 and the first fingers 150 may be integrally formed. That is, the first finger groove 153 is formed at one end portion of the iron plate having the width of the combining plate portion 110 and the first finger 150 so that the fastening plate portion 110 and the first finger 151 are integrally formed Can be configured. In this case, the connecting means described in the previous embodiment is not required.

The rest are the same as those described with reference to Figs.

9 is a sectional view showing another modification of the finger joint having the staking plate according to the present invention. 1 and 2 are referred to together.

A protruding structure 12 protruding toward the second structure 20 is provided on the first structure 10 and elastically urged by the protruding structure 12 to elastically press the mounting plate 110 downward, (140) may be installed. The elastic pressing means 140 also includes an elastic body 143 made of polyurethane or the like and attached to the outer peripheral surface of the shaft member 141 protruding to the lower portion of the protruding structure 12, The elastic body 143 may be compressed through the nut 144 coupled to the shaft member 141 protruding upward. As the elastic body 143, other elastic bodies such as coil springs may be used instead of polyurethane.

The locking jaw 142 may be screwed to the shaft member 141 to rotate the locking jaw 142 so that the degree of compression of the elastic body 143 can be adjusted.

The rest are the same as those described above with reference to Figs.

Fig. 10 is a sectional view showing a modified example of Fig. 6, and Fig. 11 is an exploded perspective view of a connecting means shown in Fig.

In this embodiment, the connecting member 161 is attached to the bottom surface of the first finger 150, and a part of the connecting member 161 is disposed below the fastening plate 110. The hole 162 formed in the lower portion of the connecting plate portion 110 of the connecting member 161 is disposed in the transverse direction (the direction indicated by the arrow B in Fig. 11) perpendicular to the throttling direction (the direction indicated by the arrow A in Fig. 11) So as to guide the movement of the concave member 167 in the lateral direction. Slide members 163a, 163b and 163c made of engineering plastic such as nylon, PTFE or the like are attached to both the right and left side surfaces and the bottom surface of the concave member 167 and the bottom surface of the connecting member 161, A slide member 163d made of a stainless steel plate or the like is attached to both the left and right sides of the hole 162 for guiding the lateral movement of the slide member 167.

The convex member 168 attached to the bottom surface of the fastening plate 110 has a convex spherical surface 168a convex downward on the bottom surface and is inserted into the concave spherical surface 167a formed on the upper surface of the concave member 167. [ The convex member 168 and the concave member 167 can be installed with their vertical positions changed. The convex member 168 is preferably made of an engineering plastic such as nylon. The concave member 167 preferably has a square or rectangular planar shape, but may be deformed into another planar shape that can be guided by the hole 162 in the transverse direction.

12 is a cross-sectional view showing another modification of the connection means, and Fig. 13 is a plan view of the connection means shown in Fig.

The connecting means 160 may be attached to the first finger 150 and may be provided with a connecting member 161 having a groove 161a formed at a lower portion of the holding plate 110, And a separation prevention part 169 inserted into the groove 161a to prevent the first finger 150 from being detached from the fastening plate part 110. [ The groove 161a and the departure-avoiding portion 169 should not interfere with each other in the lateral direction within a limited range, so that the groove 161a is not necessarily longer than the departure-avoiding portion 169. [ It is preferable that a sliding member 163c is provided on the bottom surface of the connecting member 161. [

A concave member 133 slidably contacting the upper surface of the second structure 20 through the sliding member 133b and having a spherical groove 133a or a cylindrical groove formed on the upper surface thereof, And a convex spherical surface 135a or a convex spherical surface 135 formed on the bottom surface and coupled to the spherical grooves 133a or the cylindrical grooves may be provided on the bottom surface. 5 may be used as the second supporting portion 130. [

14 is a cross-sectional view showing a modification of Fig.

It may be formed as a long hole 161b in the width direction instead of the groove 161a in FIG. Sliding members 163d such as stainless steel plates are provided on the left and right inner circumferential surfaces of the holes 161b and slide members 163a such as PTFE are provided on both left and right sides of the separation preventing portion 169 inserted into the holes 161b. Can be installed. The left and right side surfaces of the separation preventing portion 169 and the inner peripheral surface of the left and right sides of the hole 161b have a clearance so as to allow the left and right inclination of the separation preventing portion 169 in the earthquake.

The second support part 130 is provided on the bottom surface of the fastening plate part 110 on the second structure 20 and has a concave member 133 having a spherical groove 133a or a concave cylindrical surface formed on the bottom surface thereof and a slip member 133b And a convex spherical surface 135a or a convex cylindrical surface 135 formed on the top surface of the convex spherical surface 135a or the convex cylindrical surface to be engaged with the spherical groove 133a or the concave cylindrical surface.

15A to 15C are views showing other examples of the fastening plate portion and the first fingering connection means, respectively.

15A and 15B, grooves 151a or holes 151b are formed in the first finger 110 and grooves 151a or holes 151b are formed in the fixing plate 110, The first finger 150 and the staple plate 110 are connected to each other so that they can move relative to each other in a lateral direction . In this embodiment, the groove 151a or the hole 151b and the separation preventing portion 119 are connected to each other so that the first finger 150 and the stalk portion 110 are allowed to make a lateral movement relative to each other It is a kind of Sudan.

15C, protrusions 115 and 155 and protruding grooves 115a and 115b having a greater width than the protrusions 115 and 155 are formed on the facing portions of the first finger 150 and the fastening plate 110, A groove 155b which is opened upward is formed on the projection 155 of the first finger 150 and a connection axis CS is provided on the projection 115 of the fastening plate 110 By engaging with the groove 155b, the first finger 150 and the fastening plate 110 can be connected to each other so that they can make a relative lateral movement with respect to each other. Conversely, the connection axis CS is provided in the projection 155 of the first finger 150 and the downwardly open groove in which the connection axis CS can be coupled to the projection 115 of the fastening plate 110 .

In this embodiment, the protrusions 115 and 155 and the protruding grooves 115a and 155a, the connecting axis CS, the groove 155a opened upward, or the groove opened downward are separated from each other by the first finger 150, It is possible to constitute connecting means for connecting the plate portions 110 so as to allow lateral movement relative to each other.

The rest is the same as described above.

10 to 15, when the connecting means 160 is formed, it is possible to prevent line contact portions between the finger joint and the structures from occurring when a height difference is generated between the two structures, Directional displacement can also be tolerated.

Such a finger joint according to the present invention can accommodate various directions of movement between two structures arranged at intervals in a curved bridge or a sandwich, Left, right, front, and rear directions, thereby preventing breakage of the finger joint parts and preventing a problem of vehicle passage after an earthquake.

The present invention relates to a structure that is disposed between gaps and is expanded or shrunk due to temperature change, drying shrinkage, creep, etc., and is moved according to a dynamic load, an earthquake, There is a possibility of being used to make a finger joint that is installed and allows the vehicle to pass through the crevice without jolt.

10: first structure 20: second structure
100: finger joint 110 having a staking plate portion 110: staking plate portion
120: first support part 130: second support part
140: Elastic pressing means 150:
160: connecting means 161a: groove
162: hole 169:
170: second finger refuse 180: fixing means

Claims (12)

The first structure and the second structure that are spaced apart from each other by a gap and are expanded or contracted due to a temperature change or the like and moved by an earthquake or the like to change the interval of the clearance so as to allow the vehicle to smoothly pass through the clearance In finger joints,
Wherein the first structure and the second structure in a direction that is installed in the first structure and supports the load of the vehicle passing over the gap across the gap and across the gap, A straddle plate for allowing relative movement between the straddle plates;
A plurality of first fingers connected movably in a direction perpendicular to a direction in which the interval of the clearance changes and supported by the second structure, and a plurality of first fingers formed between the neighboring first fingers, A first finger rejection having first finger grooves; And
A plurality of second fingers that can be inserted into the first finger grooves and a plurality of second finger grooves formed between neighboring second fingers and into which the first fingers are inserted, And a second finger portion that is provided on the second finger portion and is capable of allowing relative movement with respect to the first finger in a direction in which the interval of the clearance is changed. The apparatus according to claim 1, further comprising: a first support portion installed on the first structure and supporting the bottom surface of the staking plate portion on the first structure by floating from the bottom of the first structure; a second support portion provided on the second structure, A second support portion which supports the bottom surface of the staking plate portion by floating from the bottom of the second structure and which is in sliding contact with the second structure and a second support portion which slides on the second structure portion in the first structure or between the first structure and the second structure, And a resilient pressing means provided on the protruding structure protruding toward the second structure and elastically pressing the holding plate portion downwardly. [3] The apparatus of claim 2,
A groove member provided on an upper surface of the first structure or a bottom surface of the fastening plate portion and having a spherical groove or a cylindrical surface groove; And
A convex spherical surface or a convex cylindrical surface which is provided on an upper surface of the first structure and a bottom surface of the fastening plate portion and is not provided with the groove member and is coupled to the spherical groove or the cylindrical surface groove to allow the fastening plate portion to pivot up and down. And a convex member having a protruding portion and a convex member. 3. The apparatus according to claim 2, wherein a spherical groove or a cylindrical surface groove is formed on a bottom surface of the staking plate portion on the second structure,
Wherein the second support portion has a convex spherical surface or a convex cylindrical surface that is coupled to the spherical surface or the cylindrical surface groove on an upper surface thereof, and the lower surface includes a block having a flat surface. The straddle-type fastener according to claim 1, wherein a support block supporting the first finger on the second structure and sliding on the second structure is provided on the bottom surface of the first finger on the second structure Having a finger joint. 2. The apparatus according to claim 1, wherein the first finger portion is coupled to the staple plate portion via a connecting means,
Wherein the connecting means comprises a connecting member having a hole formed in a lower portion of the staking plate and coupled to the first fingering member, a sliding member provided on a bottom surface of the connecting member and slidably contacting the second structure, An elastic support provided between the member and the fastening plate, and a connecting member coupled to the fastening plate and penetrating the elastic support and having an end inserted into the hole. 2. The apparatus according to claim 1, wherein the first finger portion is coupled to the staple plate portion via a connecting means,
Wherein the connecting means comprises: a connecting member having a hole formed in a lower portion of the staking plate and coupled to the first finger; A convex member provided at one of a bottom surface of the fastening plate portion and a position of being inserted into the hole and slidably contacting with the second structure and having a convex spherical surface or a convex cylindrical surface; And a concave member having a concave spherical surface or a concave cylindrical surface which is fitted to the convex spherical surface or the convex cylindrical surface and which is provided in the other of the bottom surface of the staking plate and the sliding contact with the second structure, Wherein the finger joint is a finger joint. The method as claimed in claim 6 or 7, wherein the first finger portion is spaced apart from the staple plate portion, the filling material is filled between the stapling plate portion and the first fingers, And permits a pivotal motion. 8. The connector according to claim 7, wherein the hole is longer than a length of the hole inserted in the convex member and the hole of the concave member in a transverse direction perpendicular to the throttling direction in which the interval of the clearance changes, And a lateral transverse movement of the finger joint. 2. The apparatus according to claim 1, wherein the first finger portion is coupled to the staple plate portion via a connecting means,
Wherein the connection means includes a connection member having a hole or a groove formed in a lower portion of the latching plate and coupled to the first finger; And a second plate portion provided on the latch plate portion and inserted in the hole or groove to prevent the first finger portion from being detached from the latch plate portion and to be spaced apart from the hole or groove in a transverse direction And a release preventing portion provided to allow relative movement of the finger joint. 3. The apparatus of claim 2,
A convex member provided at any one of a bottom surface of the staking plate portion on the second structure and a position of sliding contact with the second structure and having a convex spherical surface or a convex cylindrical surface; And
And a concave member having a spherical groove or a concave cylindrical surface which is provided on the other of the bottom surface of the staking plate and the sliding contact with the second structure on the second structure and is coupled to the convex spherical surface or the convex cylindrical surface A finger joint having a staking plate portion. The finger joint according to claim 1, wherein the first finger portion is provided to allow the relative movement in the transverse direction perpendicular to the throttling direction, which is a direction in which the clearance between the clearance is changed, .

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