KR101164449B1 - Non - slip expansion joint structure for bridge - Google Patents

Abstract

PURPOSE: A non-slip expansion joint structure for a bridge is provided to minimize defects of a structure by efficiently treating the change of an expansion joint unit. CONSTITUTION: A non-slip expansion joint structure for a bridge comprises piers(110), a floor finishing material(140), girders, and expansion joint units(160). Both ends of the floor finishing material are supported to the piers. The floor finishing material is composed of finishing materials connected to each other. The girders are fixed to the tops of the piers. Expansion joints are connected to the expansion joint units and are formed between the piers and the outermost finishing panels.

Description

Non-slip expansion joint structure for bridges {NON-SLIP EXPANSION JOINT STRUCTURE FOR BRIDGE}

The present invention relates to a non-slip expansion joint structure for a bridge, and more particularly, by providing a non-slip expansion joint unit in the expansion joint of the bridge, the structure to respond smoothly to the change in expansion and contraction of the expansion joint The present invention relates to a non-slip expansion joint structure for bridges that minimizes the occurrence of defects and improves the convenience of pedestrians and the riding comfort of bicycles or vehicles.

In general, the bridge is constructed in such a way that the upper structure is installed on the foundation provided by laying the foundation concrete part on the pile embedded in the ground.

Such an upper structure includes a pier installed on a foundation, a girder installed on an upper portion of the pier, and a floor finishing material installed on an upper portion of the girder.

The foundation of the bridge is a substructure supporting the superstructure, which transfers the load of the bridge to the pile and supports the moment occurring at the point.

Among the structures of the bridge, between the bridge and the floor finishing material is installed girders are provided with expansion joints that are elongated or contracted according to temperature and weather changes to vary the interval.

In other words, when the temperature is high, such as in summer, the structure is stretched and the spacing of the expansion joints is narrowed. When the temperature is low, such as in winter, the structure is contracted and the spacing of the expansion joint is widened. A certain interval (gap) is secured so that elasticity can occur smoothly in the pubic area.

Between the pier and the floor finishing material is provided with an expansion joint unit to connect the pier and the floor finishing material.

However, according to the conventional bridge construction structure, the structure of the bridge may be damaged because it does not respond smoothly to the change in expansion and contraction of the expansion joint, and there is a problem that the comfort of the pedestrian or the ride comfort of the bicycle or the vehicle is significantly reduced.

Related prior arts having the above-mentioned contents include the expansion joint apparatus of the bridge described in Korean Patent Laid-Open No. 10-2001-0092120 (published on October 24, 2001) and a method of installing the same.

An object of the present invention, by providing a non-slip expansion joint unit in the expansion joint of the bridge, to smoothly respond to the change in expansion and contraction of the expansion joint, to minimize the occurrence of the defect of the structure, pedestrian comfort and bicycle It is to provide a non-slip expansion joint structure for bridges to improve the ride comfort of vehicles.

Non-slip expansion joint structure for the bridge according to the present invention for achieving the above object, the bridge forming the lower portion of the bridge; A girder fixed to an upper portion of the pier; A floor finishing material composed of a finishing panel supported at both ends by the pier and continuously connected to each other; And an expansion joint between the pier and the finishing panel located at both ends of the floor finishing material, one side of which is supported by the girder and the other side of which is fixed to the finishing panel of both ends of the floor finishing material, thereby non-sliping the expansion joint. -Slip) expansion joint unit for connecting; It includes, but the expansion joint unit is formed on the inclined surface inclined downward on both sides of the width direction and one side is supported on the girder and the other side non-slip fixed formed at regular intervals in the longitudinal direction corresponding to the finishing panel on both ends of the bottom finish material It is characterized by consisting of a non-slip fixing piece of plate-shaped expansion joint provided with, and the non-slip fixing portion of the expansion joint to secure the expansion joint to the finishing panel of both ends of the bottom finishing material.

delete

The non-slip fixing piece is made of a rubber material, it characterized in that to prevent slipping.

The girder is provided with at least two or more coupling portions recessed at a predetermined interval in the longitudinal direction to be fixed to the pier by a fastening member, wherein the coupling portion is provided with a rod-shaped reinforcing piece for supporting the expansion joint. It is characterized by.

On the other hand, non-slip expansion joint structure for the bridge according to the invention, the bridge forming the lower portion of the bridge; Both ends are supported by the pier, the bottom finishing material consisting of a finishing panel connected to each other continuously; And installed on the expansion joint located between the finishing panel of the floor finishing material, one side is supported on the left finishing panel on the basis of the expansion joint and the other side is fixed to the right finishing panel non-slip the expansion joint (Non -Slip) expansion joint unit for connecting; It includes, but the expansion joint unit is formed with a slope inclined downward on both sides of the width direction and one side is supported by the left finishing panel and is provided with a non-slip fixing portion spaced apart at regular intervals in the longitudinal direction corresponding to the right finishing panel It is characterized by consisting of a non-slip fixing piece of plate-shaped expansion joint and coupled to the non-slip fixing portion of the expansion joint to fix the expansion joint to the right finishing panel.

delete

The non-slip fixing piece is made of a rubber material, it characterized in that to prevent slipping.

As described above, according to the non-slip expansion joint structure for the bridge according to the present invention, by providing a non-slip expansion joint unit in the expansion joint of the bridge, it is possible to smoothly respond to the change in expansion and contraction of the expansion joint Minimize the occurrence of defects in the structure, it is possible to improve the comfort of pedestrians and ride comfort of the bicycle or vehicle.

1 is an enlarged perspective view illustrating a state in which an expansion joint unit according to a first embodiment of the present invention is installed in an expansion joint between a pier and a floor finishing material.
Figure 2 is an enlarged view showing a state in which the expansion joint unit according to the first embodiment of the present invention is installed in the expansion joint between the pier and the floor finishing material.
3 is a cross-sectional view taken along the line 'A-A' of FIG.
4 is a plan view showing a disassembly process of the expansion joint unit according to the first embodiment of the present invention.
5 is an exploded perspective view of the expansion joint unit according to the first embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along the line 'B-B' of FIG. 5.
7 is a perspective view showing another installation structure of the expansion joint unit according to the first embodiment of the present invention.
FIG. 8 is a cross-sectional view taken along the line 'C-C' of FIG. 7.
9 is a perspective view showing a state in which the expansion joint unit according to the second embodiment of the present invention is installed in the expansion joint between the floor finishing material.
10 is an enlarged perspective view illustrating a state in which an expansion joint unit according to a second embodiment of the present invention is installed in an expansion joint between floor finishing materials.
FIG. 11 is a cross-sectional view taken along the line 'D-D' of FIG. 10.
12 is a perspective view showing the injury prevention means for preventing the injury of the floor finishing material according to the present invention.
Figure 13 is a side view of the injury prevention means according to FIG.
14 is a schematic cross-sectional view of a bridge to which the allowable stress of the structural steel according to the present invention is applied.
15 is a bending moment diagram for applying to a bridge in which the expansion joint unit is installed according to the present invention.
Figure 16 is a shear force diagram for applying to the bridge is installed expansion joint unit according to the present invention.
Figure 17 is a Torsional Moment Diagram for applying to the bridge is installed expansion joint unit according to the present invention.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views, and length and area, thickness, and the like may be exaggerated for convenience.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

The present invention according to the following detailed description, for example, the non-slip expansion joint unit in the expansion joint of the bridge smoothly responds to the change in expansion and contraction of the expansion joint, the convenience of pedestrians and bicycles The technical configuration of the non-slip expansion joint structure (particularly, the bridge 110, expansion joint unit 160) for the bridge of the present invention can be equally applied throughout the technical field to improve the riding comfort of the vehicle. something to do.

(First embodiment)

1 is an enlarged perspective view illustrating a state in which an expansion joint unit according to a first embodiment of the present invention is installed in an expansion joint between a pier and a floor finishing material, and FIG. 2 illustrates an expansion joint according to the first embodiment of the present invention. 3 is an enlarged view illustrating a state in which a unit is installed in an expansion joint between a pier and a floor finishing material, FIG. 3 is a cross-sectional view taken along the line 'A-A' of FIG. 2, and FIG. 4 is an expansion joint according to the first embodiment of the present invention. 5 is an exploded perspective view of the expansion joint unit according to the first embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along the line 'B-B' of FIG.

According to the non-slip expansion joint structure for a bridge according to the first embodiment of the present invention, as shown in Figure 1, the bridge 110, the bottom finishing material 140, the girder (150) and expansion joint unit And 160.

First, the bridge 100 formed to traverse a creek, river, or lake is to install the bridge 110 using reinforcement and concrete.

When the installation of the pier 110 is completed, the upper portion of the pier 110, as shown in FIGS. 1 to 3, the support plate 122, the steel plate 124, the buffer plate 126, and the Z-shaped steel 128. Install a seat 120 including).

Here, the support plate 122 is formed on the top of the pier 110 to form a square plate made of cement or the like.

The steel plate 124 is formed in a plate shape is installed on the upper surface of the support plate 122.

In addition, the buffer plate 126 is made of a rubber material is installed on the upper surface of the steel plate 124, the buffer plate 126 is to buffer the movement of the upper structure mounted thereon.

The Z-shaped steel 128 is formed in a 'Z' shape so as to face each other with the buffer plate 126 interposed therebetween on the upper surface of the steel plate 124.

As described above, when the bridge 120 is installed on the top of the bridge 110, the mold 130 is formed of the H-shaped steel of the 'H' shape on the bridge (120).

Although not shown in the upper portion of the mold 130, a bar-shaped footnote that is installed in the longitudinal direction of the mold 130 is installed, the wood to directly support people, bicycles or cars on the upper portion Installed floor finish material 140 is made.

The floor finishing material 140 is supported by both ends by the pier 110 to serve as a passage that people, bicycles or cars can pass through.

The floor finishing material 140 is preferably to form a flat state so that the top surface does not interfere with the passage of people, bicycles or cars.

In addition, the floor finishing material 140 is made of a plurality of finishing panels 142, each of the finishing panels 142 are installed in a continuous form connected side by side.

The girder 150 is fixed to the upper portion of the pier 110 serves to support the expansion joint 162.

5 and 6, the girder 150 is provided with a coupling part 152 recessed at a predetermined interval in the longitudinal direction.

The coupling part 152 is formed of at least two, the pier girder 150 through the fastening member 154 made of an anchor bolt and the like through the coupling hole 152a vertically formed in the middle portion (110) Fix it on the side.

It is preferable to install the rod-shaped reinforcement piece 156 inside the coupling part 152 to support the expansion joint piece 162.

The expansion joint unit 160 according to the first embodiment of the present invention, as shown in Figures 1 to 3, is formed between the pier 110 and the finishing panel 142 located at both ends of the bottom finishing material 140 A non-slip connection is performed between the pier expansion joint 112.

That is, the expansion joint unit 160 is one side is supported by the pier 110 and the other side is fixed to the finishing panel 142 at both ends of the bottom finishing material 140 is to connect the pier side expansion joint 112.

The expansion joint unit 160 is configured to include a plate-shaped expansion joint 162 and the non-slip fixing piece 164 for fixing the expansion joint 162.

Among these, the expansion joint 162, as shown in Figs. 3, 5 and 6, when the inclined surface 162a inclined downward on both sides of the width direction to pass when a person, a bicycle or a vehicle passes, etc. It is desirable to allow smooth passage without jamming.

As shown in FIG. 5, the expansion joint 162 is provided with non-slip fixing portions 162b at regular intervals in a length direction corresponding to the finishing panel 142 at both ends of the bottom finish material 140.

The non-slip fixing portion 162b is formed inside the non-slip fixing piece 164, the seating portion (162b-1) is formed, the mounting portion 162b-1 in the middle portion of the fixing hole 162b-2 formed vertically through ) So that the fitting portion 164a of the non-slip fixing piece 164 is fitted.

In addition, the fastening hole 162b-3 is formed on the seating portion 162b-1 to fasten the non-slip fixing piece 164 with the expansion joint piece 162 through the fastening means 163 of the screw.

As described above, the fastening means 163 for fixing the non-slip fixing piece 164 to the expansion joint 162 is about twice as thick as the thickness t of the expansion joint 162. It is formed in the above length to be fastened to the finishing panel 142 of the floor finishing material 140.

Thereby, the expansion joint piece 162 and the non-slip fixing piece 164 are fixedly fixed to the finishing panel 142.

The non-slip fixing piece 164 is fixed to the non-slip fixing portion 162b of the expansion joint 162 serves to prevent slipping when a person, a bicycle, or a vehicle passes.

The non-slip fixing piece 164 may be provided with a rubber material or the like to prevent the slip.

In addition, the lower portion of the non-slip fixing piece 164 is formed with a fitting portion 164a having a predetermined length in the vertical direction, the fitting portion 164a is formed in the fitting groove 143 recessed in the finishing panel 142. It is inserted and adds a sense of stability.

Hereinafter, the installation process of the expansion joint according to the first embodiment of the present invention as described above can be carried out as follows.

First, the pier 110 is installed using reinforcing bars and concrete, and then the girder 150 is fixedly installed through the fastening member 154 made of an anchor bolt on the pier 110.

In addition, a bridge 120 including a support plate 122, a steel plate 124, a buffer plate 126, a Z-shaped steel 128, and the like is installed inside the bridge 110.

Then, after installing the mold 130 made of H-shaped steel on the bridge 120, install a foot-shaped footnote in the longitudinal direction of the mold 130, to directly support people, bicycles or cars on the top Install the floor finishing material 140 is.

In this process, the finishing panel 142 provided at both ends of the girder 150 and the bottom finishing material 140 installed on the top of the pier 110 is spaced apart a predetermined interval to form the pier side expansion joint 112.

The expansion joint unit 162 and the non-slip fixing unit 164 have expansion joint 162 and non-slip fixing unit 164 formed on the pier side expansion joint 112 formed on the finishing panel 142 of the pier 110 and the floor finishing material 140 as described above. 160).

That is, in the state in which the fixing hole 162b-2 of the non-slip fixing portion 162b constituting the fitting groove 143 formed in the finishing panel 142 and the expansion joint 162 is matched, the expansion joint ( 162 is placed on the top of the finishing panel 142 at both ends of the floor finishing material 140.

In this process, one side of the expansion joint 162 is supported by the girder 150 installed on the pier 110, the fitting portion 164a provided in the lower portion of the non-slip fixing piece 164, the finishing panel 142 The fitting groove 143 of the structure is made.

As such, when the non-slip fixing piece 164 is coupled to the non-slip fixing part 162b of the expansion joint 162, the screw holes 164b and the non-slip fixing part 162b of the non-slip fixing piece 164 are formed. The fastening screw is coupled to the fixing hole (162b-2).

As a result, as shown in FIG. 3, one side of the expansion joint 162 is supported by the girder 150, and the other side is fixed to the finishing panel 142 at both ends of the bottom finishing material 140. The expansion joint 112 is connected.

On the other hand, one side of the expansion joint 162, as shown in Figure 7 or 8, the plate-shaped plate 151 fixedly installed through the fastening member 154 made of an anchor bolt, etc. on the top of the pier 110 The upper side, and the other side is fixed by a bolt-type fastening member 154a made of a bolt and a nut in a state in which the non-slip fixing piece 164 is not provided on the finishing panel 142 on both ends of the bottom finishing material 140. It can also be installed.

Second Embodiment

9 is a perspective view illustrating a state in which the expansion joint unit according to the second embodiment of the present invention is installed on the expansion joint between the floor finishing materials, and FIG. 10 illustrates the expansion joint unit according to the second embodiment of the present invention as a floor finishing material. 11 is an enlarged perspective view illustrating a state in which the expansion joint is installed between the expansion joints, and FIG.

According to the non-slip expansion joint structure for a bridge according to the second embodiment of the present invention, as shown in Figure 9, it comprises a bridge 110, a bottom finishing material 140 and the expansion joint unit 160.

First, among the components of the non-slip expansion joint structure for the bridge according to the second embodiment of the present invention, the configuration of the bridge 110 and the floor finishing material 140 is the same as described in the first embodiment of the present invention. The description will be omitted, and it is noted that there is a difference in configuration of the expansion joint unit 160.

Expansion joint unit 160 according to the second embodiment of the present invention, as shown in Figure 9 to 11, the panel-side expansion joint 141 located between the finishing panel 142 of the floor finishing material 140 Is installed on.

The expansion joint unit 160 is supported on the left side finishing panel 142a on the basis of the panel side expansion joint 141 and the other side is fixed to the right closing panel 142b so that the panel side expansion joint 141 To non-slip connection.

The expansion joint unit 160 is configured to include the expansion joint 162 and the non-slip fixing piece 164.

Of these, the expansion joint 162 is formed on the inclined surface 162a which is inclined downward on both sides of the width direction to minimize the inconvenience in the passage of people, bicycles or cars.

One side of the expansion joint 162 is supported on the left finishing panel 142a, the other side is fixed to the right finishing panel 142b.

In this way, the fixing hole made in the same configuration as described in the first embodiment of the present invention in the longitudinal direction corresponding to the right finishing panel 142b so as to secure the expansion joint 162 to the right finishing panel 142b. Non-slip fixing part (162b) having a seating portion (162b-1) formed with (162b-2), and the non-slip fixing piece formed with a fitting portion (164a) fixed to the expansion joint 162 through the fastening means (163) 164 is provided.

Hereinafter, the installation process of the expansion joint device for a bridge according to the second embodiment of the present invention as described above can be carried out as follows.

First, after the pier 110 is installed, the girder 150 is fixedly installed through the fastening member 154 made of an anchor bolt or the like on the pier 110, and the support plate 122 is provided inside the pier 110. A bridge 120 made of a steel plate 124, a buffer plate 126, and a Z-shaped steel 128 is installed.

Next, the mold 130 is installed on the bridge 120, the footnotes are installed in the longitudinal direction of the mold 130, and a floor finishing material 140 that directly supports a person, a bicycle, or a car is installed at the upper portion thereof. .

In this process, the panel-side expansion joint portion 141 spaced at a predetermined interval is formed at an arbitrary position of the finishing panel 142 constituting the floor finishing material 140.

The expansion joint unit 160 consisting of the expansion joint 162 and the non-slip fixing piece 164 is installed on the panel-side expansion joint 141 formed between the finishing panel 142 of the floor finishing material 140 as described above. Done.

That is, the expansion joint piece in a state in which the fixing hole 162b-2 of the non-slip fixing part 162b constituting the fitting groove 143 formed in the right finishing panel 142b and the expansion joint piece 162 coincide with each other. 162 is placed on the upper right finishing panel (142b).

In this process, one side of the expansion joint 162 is supported by the left closing panel 142a and the other side of the fitting portion 164a provided at the bottom of the non-slip fixing piece 164 is the fitting groove of the right finishing panel 142b. A structure fitted to 143 is formed.

As such, when the non-slip fixing piece 164 is coupled to the non-slip fixing part 162b of the expansion joint 162, the screw holes 164b and the non-slip fixing part 162b of the non-slip fixing piece 164 are formed. The fastening screw is coupled to the fixing hole (162b-2).

As a result, as shown in FIG. 9, one side of the expansion joint 162 is supported by the left finishing panel 142a and the other side is fixed to the right finishing panel 142b, thereby expanding the panel side expansion joint ( 141).

12 is a perspective view showing the injury prevention means for preventing the injury of the floor finishing material according to the present invention, Figure 13 is a side view of the injury prevention means according to FIG.

The floor finishing material 140 according to the first and second embodiments of the present invention as described above is provided with a material that floats on the water such as wood, which may cause problems such as falling off the piers 110 during flooding or flooding. In order to prevent, both ends of the floor finishing material 140 may be fixed to the anti-floating plate 172 of the anti-floating means 170 to ensure stability.

On the other hand, the allowable stress of the structural steel for constructing the present invention is as follows.

1. Allowable stress of structural steel

River bell SS400, SM400, SMA400 SM490 SM490Y, SM520, SMA490 Plate thickness 40mm or less 140 190 210

(1) Permissible axial tensile stress and permissible flexural tensile stress (MPa)

River bell SS400, SM400, SMA400 SM490 SM490Y, SM520, SMA490 140
: ℓ / r ≤ 20 190
: ℓ / r ≤ 15 210
: ℓ / r ≤ 14 Plate thickness 40mm or less 140-0.84 (ℓ / r-20)
: 20 <ℓ / r ≤ 93 190-1.3 (ℓ / r-15)
: 15 <ℓ / r ≤ 80 210-1.5 (ℓ / r-14)
14 <ℓ / r ≤ 76 1200000 / [6700+ (ℓ / r) ²]
: 93 <ℓ / r 1200000 / [5000+ (ℓ / r) ²]
: 80 <ℓ / r 1200000 / [4500+ (ℓ / r) ²]
: 76 <ℓ / r Remarks ℓ: Effective buckling length of the member (mm)
r: Sectional radius of rotation of the total section of the member (mm)

(2) Allowable axial compressive stress (MPa) without considering local buckling

River bell SS400, SM400, SMA400 SM490 SM490Y, SM520, SMA490 Plate thickness 40mm or less 140 190 210

(3) Allowable bending compressive stress (MPa): When the compression flange is fixed directly to the concrete deck

River bell SS400, SM400, SMA400 SM490 SM490Y, SM520, SMA490 Aw / Ac ≤ 2 Plate Thickness: Below 40㎜ 140
: ℓ / b ≤ 4.5 190
: ℓ / b ≤ 4.0 210
: ℓ / b ≤ 3.5 140-2.4 (ℓ / b -4.5)
4.5 <ℓ / b ≤ 30 190-3.8 (ℓ / b -4.0)
: 4.0 <L / b ≤ 30 210-4.4 (ℓ / b -3.5)
: 3.5 <ℓ / b ≤ 27 Aw / Ac> 2
Plate thickness
40 mm or less
140
: ℓ / b ≤ 9 / K 190
: ℓ / b ≤ 8 / K 210
: ℓ / b ≤ 7 / K 140-1.2 (Kℓ / b -10)
9 / K <ℓ / b ≤ 30 190-1.9 (Kℓ / b-8)
: 8 / K <ℓ / b ≤ 30 210-2.2 (Kℓ / b-7)
7 / K <ℓ / b ≤ 27 Remarks Aw: total area of abdominal plate (mm2), Ac: total area of compressed flange (mm2)
ℓ: distance between fixed points of compressed flange (mm), b: width of compressed flange (mm)
K = √ (3 + Aw / 2 Ac)

(4) Allowable bending compressive stress (MPa): other than specified in (3).

2. Allowable stress of joint steel

Thread Nominal Bolt Size F 8 T F 10 T S 10 T M 20 31 39 39 M 22 39 48 48 M 24 45 56 56

(1) Allowable force of high tension bolt for friction joints (KN) (for every 1 bolt per friction surface)

Stress Type ＼ Bolt Grade F 8 T F 10 T Remarks Allowable shear stress 150 190

(2) Allowable shear stress of high tension bolt for shiatsu joint (MPa)

Base material, gusset steel SS400, SM400, SMA400 SM490 SM490Y, SM520, SMA490 Plate thickness 40mm or less 240 320 360

(3) Allowable shear stress of high tension bolt for shiatsu joint (MPa)

Stress Type ＼ Member Type ＼ Steel Type SS400 SM35C SM45C Shear stress Anchor bolt
pin 60
100 80
140 80
150 Flexural Leather pin 190 260 290 Acupressure stress Pin (without rotation)
Pin (if accompanying rotation) 210
105 280
140 310
155

(4) Allowable shear stress of high tension bolt for shiatsu joint (MPa)

In addition, the allowable stress design method applied to the present invention is "ST. PLATE GIRDER", the load combination and the increase coefficient according to it are as follows.

Load combination Extra stress One Main load
: Fixed load + live load 1.00 2 Special load corresponding to main load + main load
: Fixed load + live load + special load (snow load + point settlement) 1.00 3 Main load + special load corresponding to main load + temperature change
: Fixed Load + Live Load + Special Load (Snow Load + Spot Settlement) + Temperature Change 1.15 4 Special load + wind load corresponding to main load + main load
: Fixed Load + Live Load + Hydraulic Pressure + Special Load (Snow Load + Branch Settlement) + Wind Load 1.25 5 Special load corresponding to main load + main load + temperature change + wind load
: Fixed load + live load + hydraulic pressure + special load (snow load + point settlement) + temperature change
+ Wind load 1.35 6 Special load corresponding to main load + main load + collision load
: Fixed Load + Live Load + Hydraulic Pressure + Special Load (Snow Load + Point Settlement) + Collision Load 1.70

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments but may be manufactured in various forms, and having ordinary skill in the art to which the present invention pertains. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: bridge 110: bridge
112: expansion side joint pier 120: bridge
122: support plate 124: steel sheet
126: buffer plate 128: Z-shaped steel
130: mold 140: floor finishing material
141: expansion side of the panel side 142: finish panel
142a: Left Finish Panel 142b: Right Finish Panel
143: fitting groove 150: girder
151 plate 152 coupling portion
152a: coupling hole 154: fastening member
154a: bolt type fastening member 156: reinforcing piece
160: expansion joint unit 162: expansion joint
162a: slope 162b: non-slip fixing portion
162b-1: Mounting part 162b-2: Fixing hole
163: tightening screw 164: non-slip fixing piece
164a: fitting portion 170: injury prevention means
172: injury prevention plate

Claims (7)

delete Pier forming the lower part of the bridge;
A girder fixed to an upper portion of the pier;
A floor finishing material composed of a finishing panel supported at both ends by the pier and continuously connected to each other; And
It is installed on the expansion joint between the pier and the finishing panel located at both ends of the bottom finishing material, one side is supported by the girder and the other side is fixed to the finishing panel at both ends of the bottom finishing material, non-slip (Non- Slip) expansion joint unit for connecting; Including,
The expansion joint unit is formed in the inclined surface inclined downward on both sides of the width direction, one side is supported by the girder and the other side the non-slip fixed portion provided with a predetermined interval spaced apart in the longitudinal direction corresponding to the finish panel of the bottom end material Non-slip expansion joint structure for the bridge, characterized in that consisting of non-slip fixing piece is coupled to the non-slip fixing portion of the expansion joint and secures the expansion joint to the finishing panel at both ends of the bottom finish material.
The method of claim 2,
The non-slip fixing piece is made of a rubber material, non-slip expansion joint structure for the bridge, characterized in that to prevent slipping.
The method of claim 2,
The girder is provided with at least two or more coupling portions which are formed in a predetermined interval in the longitudinal direction to be fixed to the pier by a fastening member,
The non-slip expansion joint structure for bridges, characterized in that the inner side of the coupling portion is provided with a rod-shaped reinforcement for supporting the expansion joint.
delete Pier forming the lower part of the bridge;
Both ends are supported by the pier, the bottom finishing material consisting of a finishing panel connected to each other continuously; And
It is installed on the expansion joint located between the finishing panel of the floor finishing material, one side is supported on the left finishing panel on the basis of the expansion joint and the other side is fixed to the right finishing panel non-slip (Non- Slip) expansion joint unit for connecting; Including,
The expansion joint unit has a plate-shaped expansion and contraction is formed on both sides of the width direction downward inclined surface and one side is supported by the left finishing panel and the non-slip fixing portion formed at regular intervals in the longitudinal direction corresponding to the right finishing panel Non-slip expansion joint structure for the bridge, characterized in that consisting of a non-slip fixing piece to be coupled to the non-slip fixing portion of the elastic joint piece and the expansion joint piece.
The method of claim 6,
The non-slip fixing piece is made of a rubber material, non-slip expansion joint structure for the bridge, characterized in that to prevent slipping.

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