KR102562385B1 - Protrusive transitional zone available deformation absorption and subsidence reduction and constructing method therefor - Google Patents

Abstract

In the construction of the bridge joint where the backfill and buffer are pre-constructed, and the abutment and deck of the bridge structure are post-constructed, the buffer between the backfill and the abutment is separated from the sidewall of the bridge connection (non-integrated), but the effect of side confinement is reduced. Disclosed are a protruding bridge connection capable of absorbing deformation of a bridge superstructure, which can reduce the settlement of an abutment part, and a method of constructing the same.

Description

Protruding bridge connection capable of absorbing deformation of the superstructure of a bridge and its construction method

The present invention relates to a protruding bridge connection capable of absorbing deformation of a bridge superstructure and a construction method thereof. The buffer between the backfill and the abutment is separated (non-integrated) from the sidewall of the bridge connection, but the side confinement effect can be reduced to make the deformation of the buffer more smooth. It relates to the type bridge connection and its construction method.

1A is a construction example of a bridge connection part of a conventional bridge structure.

That is, it shows a construction drawing in a state where the bridge support and the expansion joint are installed in the bridge structure through which the railroad passes.

At this time, the bridge support is installed between the lower surface of the girder and the upper surface of the abutment part, and the expansion joint device is separately constructed between the abutment part and the girder end.

As a result, the initial construction cost and maintenance cost due to the expansion joint device and bridge support are inevitably required,

When the span length of a bridge structure such as a concrete bridge increases, the stress at the bridge connection inevitably increases due to the increase in temperature and the longitudinal braking load of the train. In addition, when horizontal displacement occurs in the abutment, the backfill loosens, which can cause settlement of the bridge connection.

Figure 1b shows an example of reinforcement for preventing settlement of a bridge connection part of a conventional bridge structure.

That is, in order to induce pre-settlement of the earthworks 10 at the rear of the position where the abutment 30 of the bridge, which is a rigid structure, is to be constructed, the earthworks 10 are first formed;

On the inclined surface (left side) of the earthworks 10, a reinforcing member 22 composed of a vertical part to be in contact with the rear surface of the abutment part 30 of the bridge and a horizontal part parallel to the ground is installed,

Geotextile 23 is laid on the upper surface of the horizontal portion of the reinforcing material 22, and the upper surface of the geotextile 23 is filled with a filling material 24 to form a connection layer 21;

It can be seen that the connection layer 21 forms the bridge connection part 20 so that the height of the abutment part 30 is reached by repeating the installation of the reinforcing material 22, the laying of the geotextile 23, and the filling of the filling material 24. there is.

Therefore, the bridge connection part 20 and the earthworks 10 are first constructed to converge the residual settlement, and then the abutment part 30 is connected and constructed to minimize differential settlement, thereby improving the stability of the rigid structure connection part against moving loads or other working loads. It can be seen that we are trying to secure as much as possible.

However, although the settlement of the bridge connection can be prevented by constructing the bridge connection 20 and the earthworks 10 first, horizontal earth pressure applied from the bridge connection 20 to the abutment 30, expansion and contraction due to earthquake loads, etc. Since (horizontal deformation, displacement) is not considered, the cross section of the actual abutment part 30 inevitably becomes large, and there is a limit in that efficiency and economic efficiency are inevitably lowered.

Figure 1c shows an example of reinforcement using a buffer 70 for preventing the bridge connection part of a conventional bridge structure from subsidence.

The conventional bridge connection part 20 includes a fully integrated bridge and a partially integrated bridge in which the buffer part 70 is additionally applied to the backfill of the abutment part 30.

At this time, in the fully integrated bridge (the upper part of FIG. 1c, the ramen structure in which the abutment part and the upper plate are integrated with each other without a bridge support), when horizontal deformation occurs in the upper plate 60 due to temperature and train load, the abutment wall must support the load. Therefore, it can be seen that the abutment wall can be enlarged so that it can be partially absorbed by the buffer unit 70,

Even in a partially integrated bridge (the lower part of FIG. 1C, the abutment part and the upper plate are separated from each other by the bridge bearing), excessive relative displacement of the upper plate and the abutment part is also caused by the bridge support completely allowing horizontal deformation by the buffer unit 70. It can be seen that it can occur and reduce the structural stability.

Figure 1d shows an example of the construction of a conventional bridge connection capable of absorbing deformation and reducing settlement.

Back filling (11) formed so that the buffer part (70) is integrated with the front in the vertical direction; Side walls 40 formed on both sides of the backfill 11 and the buffer 70; And an alternating portion 30 including a side wall 40 and a top plate 60 integrated on the front surface of the backfill 11, and connected to the end of the side wall 40,

The buffer part 70 formed to be integral with the front surface of the backfill 11 absorbs the deformation caused by the load transmitted from the shift part 30 and the top plate 60, but the backfill 11 has a side wall 40 ) and is separated from the buffer unit 70 so that the buffer unit 70 absorbs the longitudinal and transverse deformation of the shift unit 30,

In particular, the buffer unit 70 is configured to be more concave than the sidewall 40 (located inward between the sidewalls) and a bridge is constructed inside both sidewalls so that even if a large bridge deformation occurs, it does not come into contact with the sidewall, so that the sidewall and The buffer section is separated from the buffer section during side wall construction so that friction can be minimized.

In the process of absorbing the deformation of the abutment part 30, interference of the sidewall is minimized and displacement is absorbed smoothly, and L-shaped structural materials (41, steel plate, etc.) are installed on the sidewall to control the displacement in the direction perpendicular to the bridge axis. it can be seen that

However, the construction structure of the side wall 40 and the buffer part 70 makes the buffer part 70 more concave than the side wall 40 so that the abutment part 30 does not contact the side wall 40 (located inward between the side walls) As configured, there are limitations in application, such as the need to install an L-shaped structural material (41, steel plate, etc.).

Republic of Korea Patent No. 10-1006900 (Title of Invention: Construction Method of Reinforcing Structure Backfilling of Rigid Structure, Publication Date: December 24, 2009) Republic of Korea Patent No. 10-1175098 (Title of Invention: Rigid Structure Maintaining Verticality Using Intermediate Auxiliary Support and Binding Structure and Binding Construction Method of Back Filling Part, Publication Date: August 21, 2012) Republic of Korea Patent No. 10-1896403 (Title of Invention: Integrated Bridge Structure and Construction Method, Publication Date: February 26, 2018) Korean Patent No. 10-0971004 (Title of Invention: Reinforced Soil Retaining Wall Using Rigid Wall Structure and Panel Constituting Wall, Publication Date: September 2, 2009)

Accordingly, the present invention enables the buffer part to more effectively absorb the deformation transmitted from the top plate, girder, and abutment part of the bridge structure, so that there is no need to install an expansion joint installed in the bridge structure, so that construction of the bridge structure is more rapid and economical While making this possible, the efficiency of the buffer part can be increased by separating (unintegrating) the buffer part from the sidewall of the bridge connection part to further reduce the lateral confinement effect, thereby making the deformation of the buffer part more smooth. The technical task to be solved is to provide possible protruding bridge connections and their construction methods.

In addition, the buffer part is connected to the abutment part of the bridge structure using the sidewall of the bridge connection part so that the bridge structure can more effectively respond to deformation, thereby absorbing the deformation of the upper bridge structure that can increase the efficiency of the construction of the buffer part. The technical task to be solved is to provide a protruding bridge connection and its construction method.

In order to achieve the above object, the protruding bridge connection part capable of absorbing deformation of the upper bridge structure of the present invention and its construction method include backfilling formed so that the buffer part is integrated with the front surface together in the vertical direction; Side walls formed on both sides of the backfilling and the buffer part; And a bridge structure including an abutment part integrated on the front surface of the buffer part and a top plate as an upper structure of the bridge; wherein the backfill is integrated with the side wall and separated from the buffer part so that the buffer part is in the longitudinal direction of the bridge structure. and lateral deformation to be absorbed, but the buffer part protrudes convexly from the side wall to reduce the lateral confinement effect, and the side wall is located on both sides of the buffer part and the backfill to accommodate it, and the bridge structure is alternated A filling material is formed between the part and the side wall so as not to come into contact with the end surface of the abutment part and the side wall so that the buffer part does not flow out. By using it, the constituent particles are bound to each other so that they do not act as a rigid body and absorb the deformation in the longitudinal and transverse directions of the bridge structure.

According to the present invention, the buffer part is separated (unintegrated) from the side wall of the bridge connection part, but in order to reduce the side restraint effect, the buffer part protrudes more convexly than the side wall (to be located more outward between the side walls) to facilitate the deformation of the buffer part. It is possible to provide a protruding bridge connection part capable of absorbing deformation of a bridge superstructure capable of providing a more effective buffer part by increasing the efficiency of the buffer part and a construction method thereof.

In addition, according to the protruding bridge connection part capable of absorbing deformation of the upper bridge structure of the present invention and its construction method, it is possible to reduce maintenance costs because it is not necessary to install an expansion joint in the abutment part of the bridge structure, and it is possible to reduce the longitudinal and transverse Since the buffer absorbs the directional deformation, it is possible to reduce the construction cost by slimming the abutment part and the foundation of the abutment part.

1a is a construction example of a bridge connection part of a conventional bridge structure;
Figure 1b is an example of reinforcement for preventing settlement of the bridge connection of a conventional bridge structure;
Figure 1c is an example of reinforcement using a buffer to prevent subsidence of the bridge connection of a conventional bridge structure;
1d is a construction example of a bridge connection capable of absorbing conventional deformation and reducing settlement;
2a and 2b are construction conceptual and configuration diagrams of the protruding bridge connection capable of absorbing deformation of the upper bridge structure of the present invention;
3a and 3b show a flow chart and a construction diagram of a method for constructing a protruding bridge connection capable of absorbing deformation of a superstructure of a bridge according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

[Protruding bridge connection part 100 capable of absorbing deformation of the bridge superstructure of the present invention]

2a and 2b show a construction conceptual diagram and configuration diagram of a protruding bridge connection part 100 capable of absorbing deformation of a superstructure of a bridge according to the present invention.

The bridge connection part 100, for example, in the process of constructing a bridge structure crossing a road or a railway, the boundary section reinforced in the backfill 110 and the buffer part 120 connected to the abutment part 210 of the bridge structure it means.

In addition, in the bridge connection part 100, as shown in FIG. 2A, a buffer part 120 is constructed between the bridge structure 200 and the backfill 110, and the buffer part 120 and the backfill 110 are mutually dependent. It is to be integrally constructed in the direction, but the side walls 140 are constructed in both sides (transverse direction).

In addition, as shown in FIG. 2B, the shock absorber 120 uses a bridge structure 200 in which the abutment 210 and the top plate 220 are integrally constructed and connected to each other using a horizontal connector 240. The buffer 120 serves to absorb longitudinal and transverse deformations caused by temperature load, train load, etc. of the bridge structure 200.

In addition, as shown in FIG. 2B, the side wall 140 is located on both sides of the buffer part 120 and the backfill 110 to accommodate it, and the alternating part 210 and the side wall 140 of the bridge structure are alternately The portion 210 and the end surfaces of the side walls 140 are spaced apart so as not to come into contact with each other so that the filling material 141 is formed so that the buffer 120 does not flow out.

In particular, the present invention separates (non-integrates) the buffer part from the side wall of the bridge connection part, but protrudes the buffer part 120 more convexly than the side wall 140 (located more outward between the side walls) in order to reduce the side restraint effect. , it is possible to provide a more effective buffer by increasing the efficiency of the buffer by making the deformation of the buffer more smooth.

Accordingly, as shown in FIG. 2A, the bridge structure 200 is composed of both abutting parts 210 and a top plate 220, as shown in FIGS. 2A and 2B, and a top plate ( 220) is integrally constructed, and the upper plate (220, bridge upper structure) is a slab, and a pavement layer can be constructed on the upper surface.

As shown in FIGS. 2A and 2B, since the bridge structure 200 is constructed of concrete, deformation occurs in the longitudinal and transverse directions due to temperature, and this deformation is mainly offset by the expansion joint and the bridge bearing will make

However, since these expansion joints and bridge bearings require a lot of maintenance costs, the present invention does not install the expansion joints and bridge bearings, and the longitudinal and transverse Directional deformation can be absorbed by the buffer unit 120 to be described later.

As a result, the present invention can reduce the maintenance cost of the bridge structure 200, and since the expansion joint device and bridge bearing are not installed, the cross section of the bridge structure can be slimmed down, thereby constructing the bridge structure 200 efficiently and economically. this becomes possible

Specifically, first, as shown in FIGS. 2A and 2B, the abutment part 210 is a kind of vertical plate structure and can be constructed by cast-in-place concrete, etc., and at least one pier is integrally constructed between the abutment part 210. It can be.

Next, a pavement layer is formed on the upper surface of the upper plate 220 and is integrally installed between the inner sides of the upper portions of both shift parts 210 .

Accordingly, the bridge structure 200 is deformed in the longitudinal and lateral directions when a temperature load and a traffic load are applied. It is absorbed using the buffer 120 of (100).

At this time, the bridge connection part 100 includes a backfill 110, a buffer part 120, a reference frame 130, and a side wall 140, as shown in FIGS. 2A and 2B.

First, as shown in FIGS. 2A and 2B, the backfill 110 is constructed so as to be self-supporting in the vertical direction toward the rear surface A of both abutments 210 of the bridge structure 200, and both abutments 210 ) is a earthwork body constructed so that the buffer part 120 can be formed between the rear surface A of both alternating parts 210 and the backfill 110 by being spaced apart from the rear surface A of ).

Since this backfill 110 is an earthworks body with a certain height, it is spaced apart from the rear surface (A) of the abutment part 210 by using a reinforcing material 111 for vertical independence while resisting the earth pressure that increases downward, so that it is vertically independent will build

At this time, the reason for constructing the backfill 110 so that it is vertically self-supporting on the rear surface A of both abutment parts 210 is that the backfill 110 is constructed before the abutment part 210, so self-reliance is possible during construction. To do so, the front part (B) of the backfill is reinforced using the reinforcing material 111 in order to improve the independence and verticality of the backfill 110 and construct the buffer 120 together.

This backfill 110 is constructed at a certain height (H) while cemented soil or gravel is laid, compacted, and stacked at a certain height. A reinforcing material (111, geogrid for ground reinforcement, etc.) It is laid so that the multiple stacked back fillings 110 are integrated up and down.

Accordingly, the backfill 110 is vertically self-supporting toward the rear surface A of both shift parts 210, but the bottom width vertically independent from the bottom surface of both shift parts 210 to the top plate 220 is It can be seen that it is constructed in the form of a trapezoidal cross-section larger than the upper surface width, and the reinforcement 111 is also constructed in multiple layers, and the horizontal extension length is shortened toward the top in response to the applied earth pressure.

In addition, since it is treated with cement, it is possible to effectively support the buffer part 120 absorbing deformation inside the sidewall because it is constrained to the sidewall 140 to be described later. That is, the backfilling 110 is integrated in the area in contact with the sidewall 140, but the buffer unit 120 described later is not integrated and is separated and protrudes outward from the sidewall 140, thereby reducing the transverse deformation of the buffer unit 120. can be obtained more effectively.

Next, as shown in FIGS. 2A and 2B, the buffer part 120 is formed vertically between the backfill 110 and both alternating parts 210 of the bridge structure 200 and the rear surface A of the top plate 220. It is formed in the space (S), but is formed to be located in the space (S) using the reference frame 130 so that it can be formed vertically together with the front portion (B) of the backfill 110.

Such a buffer 120 absorbs deformation of both alternating parts 210 due to control loads, temperature loads, etc. while doing,

By the construction of the backfill 110, the deformation due to the horizontal earth pressure and earthquake load acting on the bridge structure 200 and the upper plate 220 is absorbed, and the bridge structure 200 both abutments 210 ) and the top plate 220, it serves to reduce the earth pressure and load to enable slimming of the cross section.

The buffer 120 uses soil or gravel that does not use cement so that it can be deformed by horizontal force and load, so that the constituent particles are bound to each other and do not act as a rigid body, and serve to absorb the expansion and contraction of the bridge structure. will do

That is, by forming the buffer part 120, which is a vertical layer of earth and sand or gravel, between the both alternating parts 210 of the bridge structure 200, the back surface of the top plate 220, and the backfill 110, the both alternating parts of the bridge structure 200 It is designed to absorb the expansion and contraction of the back side of the portion 210 and the top plate 220.

In addition, since it is not cemented and is accommodated inside the sidewall without being constrained to each other with the sidewall 140 described later, there is also an advantage that effective absorption is possible even when transverse deformation of the bridge structure 200 occurs.

Therefore, unlike the present invention, if the buffer part 120 is not placed, as in the prior art, both the alternating parts 210 and the upper plate 220 of the bridge structure 200 that resist the expansion and contraction must be constructed. Since the cross-sectional area increases, construction cost and quality control of the bridge structure become difficult, so the present invention constructs the buffer part 120 together with the backfill 110 to solve this problem.

At this time, the buffer part 120 of the present invention is separated (non-integrated) from the side wall of the bridge connection part, but in order to reduce the side restraint effect, the buffer part protrudes more convexly than the side wall (to be positioned more outward between the side walls) to deform the buffer part. By making the buffer more efficient, it is possible to provide a more effective buffer by increasing the efficiency of the buffer.

In addition, as shown in FIG. 2B, the reinforcing material 111 is laid on the upper surface of the backfill 110 and the lower surface of the buffer 120, while the bridge structure 200 has both alternating parts 210 and the back surface of the top plate 220. As it extends upward along the backfill 110 and the buffer 120, it is arranged in a U-shape to cover the side surfaces of the backfill 110, the buffer 120, and the reinforcing material 111. The reference frame 130 is used to increase workability by marking in advance.

Accordingly, as shown in FIGS. 2A and 2B, the reference frame 130 connects both abutments 210 of the bridge structure 200 and the internal reinforcing bars 230 of the top plate 220 to expose the horizontal connector 240 to the outside. ), it is possible to use a L-shaped reinforcing bar network connected to, and the vertical part is installed in such a way that it is in contact with the rear surface of both the alternating parts 210 and the top plate 220, and the horizontal part is extended toward the buffer part 120. .

After laying the reinforcing material 111 on the upper surface based on the horizontal part, stacking the buffer part 120, and then stacking the backfill 110 together, the backfilling 110 and the buffer part 120 based on the vertical part ) By wrapping the side surface of the reinforcing material 111 to extend horizontally on the upper surface of the buffer unit 120, it is possible to install it as a C-shaped reinforcing material.

Since this reference frame 130 is used in constructing the backfill 110 of the first floor, the buffer 120, and the reinforcing material 111 on the back of both abutments 210 and the top plate 220 of the bridge structure 200, It is installed in multiple layers and is manufactured in the form shown in Fig. 1d.

Next, as shown in FIGS. 2A and 2B, the sidewall 140 is configured so that the backfill 110 and the buffer 120 come into contact with each other on both sides and accommodate the backfill 110 and the buffer 120 inside. However, it is formed as a wall that allows the buffer 120 to protrude to the outside.

That is, as a concrete vertical wall that serves to surround the bridge connection part 100, it is integrated with the backfill 110 and separated from the protruding buffer part 120 so that the buffer part 120 is the bridge structure 200 It serves to effectively absorb longitudinal and transverse strain,

In particular, since the part of the buffer part 120 protruding from the side wall 140 is not constrained by the side wall 140, the side wall restraining effect is reduced and the horizontal deformation of the bridge structure 200 is more smoothly absorbed.

Therefore, the present invention is spaced apart so that the bridge structure 200 and the top plate 220 come into contact with the protruding buffer part 120 and do not come into contact with the end surface of the side wall 140, so that the buffer part 120 It can be seen that stable vertical construction is possible by using the filling material 141 to set the position so that the is not leaked.

This filling material 141 serves as a reinforcing means in the event of an impact caused by an unexpected earthquake load, etc., so that it can be seen that the construction of the bridge connection part 100 is stable.

[Construction method of the protruding bridge connection part 100 capable of absorbing deformation of the upper bridge structure of the present invention]

Figures 3a and 3b show a construction flow chart of the construction method of the protruding bridge connection part 100 capable of absorbing deformation of the upper bridge structure of the present invention.

As shown in FIG. 3A, the construction of the bridge connection part 100 accommodates the settlement caused by the pre-construction of the backfill 110, the protruding buffer part 120, and the side wall 140, while the abutment part 210 is connected to the reference frame 130. ) is used to perform post-construction to connect to the protruding shock absorber 120, and construction is performed in such a way that the top plate 220 is constructed between the upper and inner sides of the alternating part 210.

At this time, the side wall 140 is separated from the buffer part 120 and integrated with the backfill 110 to construct it.

Accordingly, according to FIG. 3A, while the reinforcing material 111 is first laminated using the reference frame 130, the backfill 110 is also laminated together with the buffer 120, and the top surface of the final backfill 110 is a pavement layer. It can be seen that the pre-construction is performed so that this is formed. The back of the backfill is also constructed together as an embankment layer.

Accordingly, the upper surface of the pavement layer is made to have the same height as the upper surface of the top plate 220, but is connected to the internal reinforcing bars 230 of both the alternating parts 210, so that the rear surface (A) of the alternating part 210 and the upper plate 220 The buffer unit 120 and the alternating unit 210 are constructed by integrating the buffer unit 120 and the shift unit 210 by using a horizontal connector 240 exposed to the space S formed vertically therebetween, and the final top plate 220 The integrated construction is performed between the upper and inner sides of the alternating part 210.

At this time, as the buffer part 120 protrudes further from the side wall 140, it is spaced apart so as not to come into contact with the end surface of the side wall 140, so that the protruding buffer part 120 does not flow out. By positioning it so that it is set, stable vertical construction is possible, and as a result, the side wall 140, the alternating part 210, and the top plate 220 have continuity.

Even with this, as shown in FIG. 3B, when the bridge structure 200 is finally completed, when deformation (expansion) occurs in the longitudinal and lateral directions due to the temperature load, vehicle load, etc. of the bridge structure 200, the protruding buffer part 120 ), and the settlement of the bridge connection part 100 can be reduced through the reinforcement material 111 by backfilling with the buffer part.

As a result, it can be seen that the bridge structure 200 does not have an expansion joint and a bridge bearing installed, so that the cross-section of the bridge structure 200 can be slimmed down, the pile construction and the cross-section of the base of the abutment section 210 can be slimmed down. there is.

In particular, even if the deformation (extension) increases as the span length between the two abutments 210 increases, construction costs can be reduced by increasing the cross-sectional efficiency of the abutment 210 and the upper plate 220, and in particular, the momentary braking load by the railroad car You can also manage new construction effectively.

In addition, the longitudinal deformation and transverse deformation of the protruding shock absorber 120 are not restricted otherwise by separation from the side wall 140, and the side wall 140 and the alternating portion 210 are connected to provide stable construction management becomes possible, and the side wall confinement effect is reduced, so that more efficient absorption of horizontal strain of the bridge structure 200 is possible.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

100: bridge connection
110: backfill 120: buffer
130: frame of reference
140: side wall 141: filling material
200: bridge structure
210: shift unit 220: top plate
230: internal reinforcing bar 240: horizontal connector
A: the back of the abutment and top plate B: the front of the backfill

Claims (10)

Back filling 110 formed so that the buffer unit 120 is integrated with the front in the vertical direction;
Side walls 140 formed on both sides of the back filling 110 and the buffer 120; and
A bridge structure 200 including an abutment unit 210 integrated on the front surface of the buffer unit 120 and a top plate 220, which is a bridge upper structure; includes,
The backfill 110 is integrated with the sidewall 140 and separated from the buffer 120 so that the buffer 120 absorbs both longitudinal and transverse deformations of the bridge structure 200, but the The buffer part 120 protrudes convexly from the side wall 140 to reduce the side restraint effect,
The side wall 140 is located on both sides of the buffer part 120 and the backfill 110 to accommodate it, and between the alternating part 210 and the side wall 140 of the bridge structure, the alternating part 210 and the side wall A filling material 141 is formed so that the buffer 120 does not spill out by being spaced apart so as not to contact the end surface of the 140, but the buffer 120 does not use cement so that it can be deformed by horizontal force and load. A protruding bridge connection capable of absorbing the deformation of the bridge superstructure by using soil or gravel that does not bind to each other to absorb the longitudinal and transverse deformation of the bridge structure without acting as a rigid body by binding the constituent particles to each other. delete delete According to claim 1,
The sidewall 140,
Protruding bridge connection capable of absorbing deformation of the bridge superstructure to absorb the deformation of the bridge connection by binding the constituent particles to each other and acting as a rigid body by using soil or gravel using cement to restrain deformation by horizontal force and load . According to claim 1,
The shock absorber 120 is
To be formed in the space (S) formed vertically between the alternating portion of the backfill 110 and the bridge structure 200 and the back surface (A) of the upper plate, but to be formed together on the front surface of the backfill 110 Reference frame 130 A protruding bridge connection capable of absorbing deformation of the upper bridge structure formed to be located in the space (S) by using. According to claim 5,
The reference frame 130,
A L-shaped reinforcing bar network connected to the abutment 210 of the bridge structure 200 and the horizontal connector 240 exposed to the outside by connecting to the internal reinforcing bars of the top plate 220 is used, but the vertical portion of the bridge structure 200 A protruding bridge connection capable of absorbing deformation of the bridge superstructure installed in such a way that the abutment part 210 and the upper plate 220 come into contact with each other and the horizontal part extends toward the buffer part 120. According to claim 6,
After laying the reinforcing material 111 on the upper surface based on the horizontal part of the reference frame 130, stacking the buffer part 120, and then stacking the backfill 110 together, backfilling based on the vertical part (110) A protruding bridge connection capable of absorbing deformation of the upper structure of a bridge that wraps the side of the buffer and buffer part 120 so that the reinforcing material 111 extends horizontally to the upper surface of the buffer part 120 so that the C-shaped reinforcing material 111 can be installed. . (a) constructing a backfill 110 formed so that the buffer unit 120 is integrated with the front in the vertical direction;
(b) constructing sidewalls 140 formed on both sides of the backfill 110 and the buffer 120; and
(c) constructing a bridge structure 200 including an abutment unit 210 and a top plate 220 integrated on the front surface of the buffer unit 120;
The backfill 110 in step (a) is integrated with the side wall 140 and separated from the buffer 120 so that the buffer 120 can reduce both the longitudinal and transverse deformation of the bridge structure 200 To absorb, but to reduce the side restraint effect by protruding the buffer part 120 convexly from the side wall 140,
The sidewall 140 in the step (b) is positioned on both sides of the buffer 120 and the backfill 110 to accommodate it, and between the alternating portion 210 and the sidewall 140 of the bridge structure, the alternating portion 210 and the end surface of the side wall 140 are spaced apart so as not to come into contact with each other to form a filling material 141 so that the buffer 120 does not flow out,
The buffer unit 120 uses soil or gravel that does not use cement so that it can be deformed by horizontal force and load, so that the constituent particles are bound to each other and do not act as a rigid body, and the longitudinal and lateral deformation of the bridge structure A method for constructing protruding bridge connections capable of absorbing deformation of the superstructure of a bridge. delete delete