KR102026108B1 - Construction method of bridge deck with watetproof function - Google Patents

Abstract

The present invention includes: a preparing step of cutting a stacked portion of a bridge upper portion so that a slab is exposed; a surface processing step of arranging a surface of the slab; an adhesive layer forming step of applying adhesive to an exposed portion of an upper end of the slab to form an adhesive layer; a waterproof layer forming step of spraying a waterproof material on an upper portion of the adhesive layer to form a waterproof layer; a reinforcing step of constructing a grid on an upper portion of the waterproof layer to form a reinforcing layer; an elastic connecting part installing step of connecting a connecting part formed on each edge of a plurality of slabs with an elastic connecting part; and a finishing step of laying asphalt concrete on an upper portion of the reinforcing layer and placing mortar or concrete on the connecting part.

Description

Construction method of bridge deck using expansion joint with perfect elasticity using high elastic rubber sealant {CONSTRUCTION METHOD OF BRIDGE DECK WITH WATETPROOF FUNCTION}

The present invention relates to a method for constructing a bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant.

More specifically, by forming a reinforcement layer using a grid on the top of the slab of the bridge, the cross-sectional adhesive force is strengthened to form a reinforcement layer close to the one-piece, and a high elastic rubber sealant is provided between the plates disposed at each of the pair of slab edges. The present invention relates to a method for constructing a bridge top plate using a flexible joint having a perfect waterproof function by using a highly elastic rubber sealant to be waterproof at a gap formed between a pair of plates by being filled with elastic joints.

In general, the bridge is composed of a superstructure and a lower structure, the top of the bridge is a girder is placed on the pier, usually a substructure, a concrete slab is placed on the girder, and a waterproof layer is laid on the poured concrete slab, It is installed by the method of constructing the concrete pavement layer used as a road surface, or constructing an asphalt pavement layer on it.

The tops of these bridges correspond to locations directly receiving loads due to the role of the vehicle's driving paths, and are exposed to natural environments such as rainwater and sunlight. Cracking may occur due to the load of.

Therefore, in order to cope with the expansion and contraction of the bridge according to the temperature change, the upper plate (slab) included in the upper structure of the bridge is divided into several parts in the longitudinal direction of the bridge, and the expansion joint connecting these upper plates between each divided top plate The device is constructed and configured to operate against contraction and expansion due to seasonal changes in the top plate.

In addition, crack gaps are generated in the bridge bridge due to rainwater penetration and physical and chemical deterioration such as vehicle load, and moisture such as rainwater penetrates into the concrete slab. Due to the deterioration due to repetition of the action and the penetration of chloride of the snow remover, the corrosion of the concrete slab that forms the bridge skeleton is promoted, which not only reduces the durability and life of the bridge but also affects safety problems. Is in.

Thus, the bridges such as the above to absorb the deformation of the structure, such as temperature changes, drying shrinkage, creep, and to smoothly drive the vehicle while minimizing the impact force due to the vehicle load, and also to prevent the drainage is discharged toward the alternating and pier There is a need for a waterproof layer and expansion joints that exhibit a waterproof function.

Patent Registration No. 10-1013193 (2011.01.28.) Patent Registration No. 10-1411895 (2014.06.19.)

The present invention has been made to meet the above requirements, the problem to be solved in the present invention by forming a reinforcement layer using a grid (Grid) on the top of the slab of the bridge, to strengthen the cross-sectional adhesion to form a reinforcement layer close to the one-piece The elastic joints filled with the high elastic rubber sealant are provided between the plates disposed at each of the pair of slab edges, thereby providing a perfect waterproof function by using the high elastic rubber sealant for waterproofing between the gaps formed between the pair of plates. It is to provide a construction method of the bridge deck using an expansion joint having a.

In order to solve the above problems, the construction method of the bridge top plate using a stretch joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention is prepared by cutting the laminated portion of the bridge top plate to expose the slab; A surface treatment step of arranging the road surface of the slab; An adhesive layer forming step of forming an adhesive layer by applying an adhesive to the exposed portion of the top of the slab; Waterproofing layer forming step of forming a waterproofing layer by applying a waterproofing material on the adhesive layer; A reinforcing step of forming a reinforcing layer by constructing a grid on the waterproof layer; An expansion joint installation step of connecting the joints formed at each corner of the slab provided with a plurality of expansion joints; And laying the ascon on the reinforcing layer and finishing the mortar or concrete in the joint; and using the high elastic rubber sealant, characterized in that the construction includes the construction of the bridge top plate using the expansion joint having perfect waterproof function. By providing a method, the technical problem is solved.

The present invention forms a reinforcing layer using a grid, but by reinforcing the cross-sectional adhesive strength of the grid to form a reinforcing layer close to the one-piece, remarkable effect of preventing reflection cracking of ascon, improving durability to improve waterproof performance Holds.

In addition, when the high elastic rubber sealant is filled between the plates disposed on the pair of slab edges provided to correspond to each other, when the high elastic rubber sealant is cracked due to cracking, sewing is possible without replacement. It has the significant effect of increasing the life and reducing the cost.

1 is a flow chart illustrating a method of constructing a bridge deck using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
2 is a view showing a cross section of the bridge in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
Figure 3 is a view showing the adhesive layer forming step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
Figure 4 is a view showing another example of the adhesive layer forming step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
5 is a view showing the waterproof layer forming step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
6 is a view showing a reinforcing step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
7 is a view for explaining the function of the waterproof layer in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
8 is a view showing an example of the grid bonding step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
9 is a view showing another example of the grid bonding step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
10 is a view showing another example of the grid in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
11 is a view showing the filling step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
12 is a view showing another example in which the grid is constructed in the reinforcing step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
13 is a view showing the step of installing the expansion joint in the construction method of the bridge top plate using the expansion joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
14 is a view showing the direction of the force applied to the plate by the vehicle in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
15 is a view showing the direction of the force against the direction of the force applied by the vehicle in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.
16 is a view showing a finishing step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.

Advantages and features of the embodiments of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments merely make the disclosure of the present invention complete and common knowledge in the technical field to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Terms and words used in the present specification and claims are terms defined in consideration of functions in the embodiments of the present invention, and should not be construed as being limited to ordinary or dictionary meanings. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the concept of the term can be properly defined in order to explain in the best way.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be variations and examples.

Before describing the present invention with reference to the drawings, matters that are not necessary to reveal the gist of the present invention, that is, well-known configurations that can be obviously added by those skilled in the art will not be shown or described in detail. Make sure you didn't.

First, before describing various embodiments of the present invention with reference to the accompanying drawings, the orientation of the components (eg, "before", "after", "left") described in the following detailed description or shown in the drawings. , "Right", "up", "down", "up", "bottom", "lateral", "species", "front", "back", "one side", "other side", "inside" and " It does not indicate or mean simply having a specific direction with respect to terms such as " outside ") and the like, and descriptions of such directions are made to facilitate explanations between the components with reference to the accompanying drawings.

Construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention by forming a reinforcement layer 400 using a grid on the top of the slab 100 of the bridge, cross-sectional adhesive force By forming a reinforcement layer close to the one-piece, and the expansion joint 500 is filled with a high elastic rubber sealant 520 between the plate 510 disposed on each of the pair of slab 100 edges, a pair It relates to a construction method of the bridge top plate using a flexible joint having a perfect waterproof function by using a high elastic rubber sealant to be waterproof in the gap 120 formed between the plate 510 of the.

First, in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention, as shown in Figure 2, the bridge is configured to include a slab 100, Supported, the plurality of slabs 100 is made of a structure that is provided between the expansion joint 500 is described later between.

That is, in the present specification, the bridge is not limited to a specific configuration, and the edge portion where the expansion joint 500 is provided may be configured by forming a joint 110.

Hereinafter, with reference to the accompanying drawings will be described in detail the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.

1 is a flow chart showing the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber seal according to the present invention, Figure 2 is a perfect waterproof function using a high elastic rubber sealant according to the present invention The figure which shows the cross section of the bridge in the construction method of the bridge top plate which uses the expansion joint which has.

The construction method of the bridge top plate using a stretch joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention relates to the construction method of the bridge top plate with a waterproof function on the slab 100, the preparation step (S10) ), Surface treatment step (S20), adhesive layer forming step (S30), waterproof layer forming step (S40), reinforcement step (S50), expansion joint installation step (S60) and finish step (S70).

The preparation step (S10) is a step of exposing the slab 100 by cutting the stacked portions of the bridge top plate for forming the waterproof layer 300 to be described later.

This preparation step (S10) is a step to expose the slab 100 by cutting the laminated portion of the bridge to form a waterproof layer 300 using equipment such as a demolition hammer or hammer drill or excavator (trade name: fork lane). to be.

Thus, as shown in FIG. 2, the adhesive layer 200, the waterproof layer 300, the reinforcing layer 400, and the ascon layer 600, which will be described later, may be installed on the exposed surface of the slab 100.

At this time, the process of cutting the part laminated on the bridge in the preparation step (S10) is a process for forming the waterproof layer 300 on the bridge that was previously constructed, to be omitted to form the waterproof layer 300 on the newly formed bridge Can be.

That is, in the newly formed bridge, the cutting process may be produced by directly constructing the adhesive layer 200, the waterproof layer 300, the reinforcing layer 400, and the ascon layer 600 on the road surface of the slab 100.

Surface treatment step (S20) is a step to clean up the road surface of the slab 100 exposed in the preparation step (S10).

In other words, the road surface of the slab 100 is cleanly cleaned to remove foreign substances.

This is because when the road surface of the slab 100 is not sufficiently cleaned, it is difficult to expect effective adhesion between the road surface and the waterproof layer 300 to be described later, so that cracks and dropping may occur even with a small impact, so that the road surface is cleanly arranged. Problems such as this can be prevented in advance.

At this time, the surface treatment step (S20) to clean up the foreign matter, such as cutting, but completely clean up the cut portion in the cutting process,? An part so that the road surface of the slab 100 can be kept flat through additional cutting. Can be done.

Thus, in the adhesive layer forming step (S30) and the waterproof layer forming step (S40) to be described later by increasing the adhesive area by the flat surface of the slab 100 can be further improved adhesiveness.

3 is a view showing the adhesive layer forming step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention, Figure 4 is using a high elastic rubber sealant according to the present invention The figure showing another example of the adhesive layer forming step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function.

Adhesive layer forming step (S30) is a step of forming an adhesive layer 200 by applying an adhesive on the upper surface of the slab 100 in the surface treatment step (S20).

The adhesive layer forming step (S30) is a step of applying a primer to the surface of the slab 100 to form an adhesive layer 200, it may be made to be evenly applied to the entire surface of the slab (100).

In this case, the adhesive layer 200 may be formed of a resin primer.

According to the design conditions, as shown in Figure 4, the adhesive layer forming step (S30) may be made by applying the adhesive to the joint 110 formed in the corner as well as the top of the slab 100.

Thus, in the process for installing the expansion joint 500, which will be described later in the joint 110 may improve the adhesive strength with the mortar or concrete is filled in the joint 110.

5 is a view showing the waterproof layer forming step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.

The waterproof layer forming step (S40) is a step of forming the waterproof layer 300 on top of the adhesive layer 200 formed in the adhesive layer forming step (S30).

In this case, the waterproof layer 300 may be formed by applying a coating type waterproofing material, and of course, a synthetic rubber type coating type waterproofing material including styrene butadiene styrene component may be used to enhance adhesion.

Figure 6 is a view showing the reinforcement step in the construction method of the bridge top plate using a stretch joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention, Figure 7 is a perfect using a high elastic rubber sealant according to the present invention 8 is a view for explaining the function of the waterproof layer in the construction method of the bridge top plate using a waterproof joint having a waterproof function, Figure 8 is a bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention 9 is a view showing an example of a grid bonding step in the construction method of Figure 9 is another example of a grid bonding step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention 10 is a perfect waterproof function using a high elastic rubber sealant according to the present invention. The figure which shows the other example of the grid in the construction method of the bridge top plate which uses the expansion joint which has.

Reinforcement step (S50) is a step to reinforcement by constructing the grid 410 on the waterproof layer 300 formed in the waterproofing layer forming step (S40), including a grid construction step (S51) and grid bonding step (S52). It is configured by.

At this time, the grid 410 is made of a material that is ventilated in the form of a grid, it may be made of a polyester material, because the strength is excellent and the elasticity and recovery power is not good shape deformation as shown in Figure 7 Likewise, there is an advantage of improving durability of the ascon layer 600 to be described later, and suppressing reflection cracking to improve the waterproof layer 300 function.

Grid construction step (S51) is a step of forming a reinforcement layer 400 on the waterproof layer 300, a step of constructing a roller-shaped grid 410 on the reinforcement layer 400.

On the other hand, with reference to Figure 6, since the grid 410 is a kind of fiber in the form of a roller, in the process of constructing the grid 410 in the entire area of the bridge, the adjacent portions of the grid 410 adjacent sections Is generated.

At this time, when the construction of the grid 410 overlap each other, the thickness of the overlapping portion is thickened, the ascon layer 600 can not only be thinly constructed on the upper portion of the overlapped construction of the grid 410 overlapping ascon layer There is a problem that the durability of the 600 is lowered.

In addition, when the cross sections of the grid 410 are only adjacent to each other so as not to overlap each other, the support force for supporting the ascon layer 600 to be described later is reduced because the space between the cross sections of the grid 410 acts as one large crack. There is a problem that the durability is lowered.

Thus, the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention by adhering the cross sections of the grid 410 to each other through the grid bonding step (S52) described later By making it possible to form the reinforcing layer 400 close to the one-piece corresponding to the total area, it is possible to prevent the problem that the durability is lowered in advance.

Grid bonding step (S52) is intended to prevent the above problems in advance, in the process of constructing the roller-shaped grid 410, after the cross-sections of the grid 410 are arranged adjacent to each other, the grid of 410 Bonding the cross section.

At this time, the grid bonding step (S52) may be made differently depending on the cross-sectional shape of the grid 410 made of a grid form.

For example, referring to FIG. 8, when the protrusion 420 is formed in the cross section of the grid 410 and protrudes outward, the protrusion 420 formed in the cross section of one grid 410 is different from the protrusion 420 formed in the cross section of the grid 410. After the pair of grids 410 are positioned on the top of the waterproof layer 300 such that the projections 420 formed on the grid 410 cross-sections are adjacent to each other, as shown in FIG. 8, a wide and long adhesive tape 430 is formed. ) Is constructed so that the upper and lower surfaces of the protrusions 420 may be sequentially wrapped, and then a pair of grids 410 are firmly applied by applying an adhesive to a portion where the adhesive tape 430 and the protrusion 420 are in contact with each other. Can lead to this.

As another example, referring to FIG. 9, when the protrusion 420 protruding from the cross section of the grid 410 is very short, or the protrusion 420 is not formed, the length of the grid 410 is long. As shown in FIG. 9, the pair of grids 410 may be firmly connected to each other by a fixing cable 440.

In this case, the fixing cable 440 may be made of various materials such as a metal material such as a wire, a cable tie made of a synthetic plastic, a thread which is a kind of fiber, or a rubber band having excellent elasticity.

In addition, the fixing cable 440 may be formed of an iron core of a stapler as another example. In this case, the cross section of the pair of grids 410 is adjacent to each other by using a stapler, and then fixed by using the stapler. In addition, the pair of grids 410 may be firmly connected.

As another example, when the protrusion 420 is formed to protrude to the outside of the cross section of the grid 410, the protrusion formed on the cross section of the grid 410 and the protrusion 420 formed on the cross section of the other grid 410 After positioning the 420 so as to overlap in the road surface direction of the bridge, of course, each of the protrusions 420 and protrusions 420 may be configured to be fixed after wrapping the fixing cable 440.

As shown in FIG. 10, the grid 410 may be formed in a lattice form, and a round portion 411 which is dug inwardly may be formed at an edge portion thereof.

The round part 411 is formed in a shape that is dug inwardly at the corner of the orthogonal portion in the grid 410 made of a lattice shape, by dispersing the concentration of stress in the corner portion is broken or partially broken due to the concentration of stress It can be prevented beforehand.

11 is a view showing the filling step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber seal according to the present invention, Figure 12 using a high elastic rubber sealant according to the present invention In the construction method of the bridge top plate using the expansion joint having a perfect waterproof function is a view showing another example of the grid construction in the reinforcement step.

According to the design conditions, when the road surface cleaning of the slab 100 exposed in the surface treatment step (S20) is completed, the pouring filling step of pouring mortar or concrete to the joint 110 formed in the corner of the slab 100 (S45) It may be configured to include more.

This pouring filling step (S45), as shown in Figure 11, in the form of the inclined surface 130 is poured in the form of the width gradually narrowed toward the upper side from the side of the slab 100, the joint portion 110 is formed. do.

At this time, as shown in Figure 12, when the mortar or concrete casting is completed on the joint portion 110 so that the inclined surface 130 is formed, the grid 410 constructed on the top of the slab 100 is the inclined surface 130 It can be constructed to cover.

In this pouring filling step (S45), the grid 410 located on the inclined surface 130 may be made to contact the end of the stud 530 of the expansion joint 500 to be described later.

Therefore, the studs 530 formed at both ends of each of the expansion joints 500 are in contact with and supported by the grid 410 on the top of the inclined surface 130 provided at each corner of the pair of slabs 100. 500 can be installed to be stable and robust.

Figure 13 is a view showing the step of installing the expansion joint in the construction method of the bridge top plate using the expansion joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention, Figure 14 is a high elastic rubber sealant according to the present invention Figure showing the direction of the force applied to the plate by the vehicle in the construction method of the bridge top plate using the expansion joint having a perfect waterproof function using, Figure 15 is a perfect waterproof function using a high elastic rubber sealant according to the present invention The figure which shows the direction of the force against the direction of the force exerted by a vehicle in the construction method of the bridge top plate which uses the expansion joint part which has.

Expansion joint installation step (S60) is a step of installing and connecting the expansion joint 500 in the gap 120 formed between the plurality of slab (100) provided.

Here, when the expansion joint 500 is described with reference to FIG. 13, the plate 510 and the high elastic rubber sealant 520 disposed on the joint 110 formed at each corner of each of the slabs 100 are provided. ) And a stud 530.

The plate 510 is symmetrically provided to face each other between the pair of slabs 100, and may be arranged in a plurality of rows in the longitudinal direction of the bridge according to the length of the bridge being constructed.

That is, the expansion joint 500 is installed between the plurality of slabs 100, the plate 510 is disposed on the joint 110 formed in the corner of each slab (100).

The high elastic rubber sealant 520 is filled in the gap 120 formed between the pair of plates 510 to absorb the compressive force acting by the plate 510, and the gap 120 is Even if it is widened or narrowed, it can be flexibly handled so that vehicles can pass the bridge smoothly.

As shown in FIG. 13, the high elastic rubber sealant 520 is completely filled in the gap 120 formed between the pair of plates 510 to perform a waterproof function.

In this case, the high elastic rubber sealant 520 may be formed in such a manner that the first rubber sealant 521 and the second rubber sealant 522 are stacked as illustrated in FIG. 13.

Preferably, the second rubber sealant 522 is disposed on the upper side of the first rubber sealant 521 and filled, but may have a thickness relatively thinner than the thickness of the first rubber sealant 521.

Accordingly, as the second rubber sealant 522 is disposed on the upper side of the first rubber sealant 521, the second rubber sealant 522 is exposed to the road surface of the bridge, and the life of the high elastic rubber sealant 520 is decreased or the degree of wear is reduced. As it is increased, when the replacement of the high elastic rubber sealant 520 is unavoidable, by using only the second rubber sealant 522 to replace, the convenience of replacement is provided, and the entire high elastic rubber sealant 520 needs to be replaced. There is no economic advantage.

When the stud 530 is described with reference to FIG. 13, the pair of plates 510 protrudes outwards on opposite surfaces which are not adjacent to each other, and when the plate 510 is coupled to the slab 100, After being disposed on the joint 110 through the stud 530, the plate 510 is firmly coupled to the slab 100 by being coupled by mortar or concrete cast on the joint 110.

At this time, the stud 530 may be made of a zig-zag refracting stud is repeated convex and concave shape to the upper side and the lower side, thereby increasing the contact area with the slab 100 more firmly to the slab 100 Allow plate 510 to be coupled.

Further, although not shown in the drawing, the stud 530 has a circular cross-section may be provided with a plurality of spaced apart from each other along the longitudinal direction of the plate 510.

According to the design conditions, using the high elastic rubber sealant according to the present invention in the construction method of the bridge top plate using the expansion joint having a perfect waterproof function, the expansion joint 500 may be configured to further include an eccentric prevention means (540) Can be.

On the other hand, as the plate 510 is coupled to the end of the slab 100, the load is applied in the process of passing the vehicle to the upper side of the plate 510 is dropped off to the combined portion of the slab 100 and the plate 510 Can be generated.

Thus, in the construction method of the bridge top plate using the expansion joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention, the expansion joint 500 is a plate 510 coupled to the slab 100 is the slab ( The further away from the 100, the eccentric prevention means 540 that can support the plate 510 more firmly upward, thereby preventing the dropping between the slab 100 and the plate 510 in advance. can do.

Referring to FIG. 14, the eccentric prevention means 540 includes a lower support ground 541, an upper support ground 542, an upper support reinforcement 543, and a lower support reinforcement 544.

The lower support surface 541 is formed on the lower surface of the upper convex portion of the stud 530 protruding outside the plate 510, the upper portion of the upper support reinforcement 543, which will be described later in contact with the lower support surface 541 ).

The upper support surface 542 is formed on the upper surface of the lower convex portion of the stud 530 protruding outside the plate 510, the lower portion of the lower support reinforcement 544 to be described later is in contact with the upper support surface Support 542.

The upper support reinforcement 543 is formed in the longitudinal direction of the plate 510 to support each of the plurality of studs 530 is provided, preferably, as shown in Figure 14, the lower support surface 541 The upper portion is in contact with the) to support the lower support surface (541).

The lower support reinforcement 544 is formed in the longitudinal direction of the plate 510 in the same way as the upper support reinforcement 543 so that each of the plurality of studs 530 is supported, as shown in FIG. 14. A lower portion of the upper support surface 542 is in contact with the upper support ground 542 to support the upper support ground 542.

Thus, as shown in FIG. 14 by the load applied to the plate 510 coupled to the end of the slab 100 while the vehicle passes the bridge, when the force acts, the lower supporting ground 541 is supported. As shown in FIG. 15, the upper support reinforcement 543 and the lower support reinforcement 544 supporting the upper support ground 542 intersect the studs 530 to be coupled to the slab 100. As the plate 510 moves away from the slab 100, the plate 510 can be more firmly supported upward, thereby preventing the dropping between the slab 100 and the plate 510 from occurring. have.

16 is a view showing a finishing step in the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant according to the present invention.

Finishing step (S70) is a step of laying ascon on top of the reinforcing layer 400 formed in the reinforcing step (S50), by pouring mortar or concrete on the joint 110 to finish.

In this case, the asphalt concrete installed on the reinforcement layer 400 may be formed to finish the pavement of the bridge by forming the asphalt concrete leveling layer 610 and the asphalt concrete wear layer 620, respectively.

According to this configuration, the construction method of the bridge top plate using a flexible joint having a perfect waterproof function using the high elastic rubber sealant according to the present invention forms a waterproof layer 300 on the slab 100, a plurality of slabs (100) As the highly elastic rubber sealant 520 is provided in the expansion joint 500 connecting the gaps between the two ends, the waterproofing may be performed on the entire bridge.

In addition, by forming the reinforcing layer 400 using the grid 410, by strengthening the cross-sectional adhesive force of the grid 410 to form a reinforcing layer 400 close to the one-piece, to prevent reflection cracking of the asphalt concrete, and to improve durability It has a remarkable effect of improving the waterproof performance.

In addition, the high elastic rubber sealant 520 is filled between the plates 510 disposed at the edges of the pair of slabs 100 provided to correspond to each other, whereby the high elastic rubber sealant 520 may be cracked due to cracking. In this case, sewing is possible without replacement, which has a significant effect of increasing service life and reducing costs.

In the above description, various embodiments of the present invention have been described and described, but the present invention is not necessarily limited thereto, and a person having ordinary skill in the art to which the present invention pertains can make various changes without departing from the technical spirit of the present invention. It will be appreciated that branch substitutions, modifications and variations are possible.

100: slab 110: joint
120: clearance 130: slope
200: adhesive layer 300: waterproof layer
400: reinforcing layer 410: grid
411: round part 420: protrusion
430: fixing tape 440: fixed cable
500: expansion joint 510: plate
520: high elastic rubber sealant 521: first rubber sealant
522: second rubber sealant 530: stud
540: eccentric means 541: lower ground surface
542: upper ground floor 543: upper support bar
544: lower support steel 600: ascon layer
610: ascon leveling layer 620: ascon wear layer

Claims (10)

A preparatory step (S10) of cutting the stacked portions of the bridge deck so that the slab 100 is exposed;
Surface treatment step (S20) for arranging the road surface of the slab (100);
An adhesive layer forming step (S30) of forming an adhesive layer 200 by applying an adhesive to the exposed portion of the upper portion of the slab 100;
A waterproofing layer forming step of forming a waterproofing layer 300 by applying a waterproofing material on the adhesive layer 200 (S40);
Reinforcing step (S50) to form a reinforcement layer 400 by constructing a grid 410 on the waterproof layer 300;
An expansion joint installation step (S60) of connecting the joint 110 formed at each corner of the slab 100, which is provided with a plurality, to the expansion joint 500; And
Including the ascon on the reinforcing layer 400, the finishing step (S70) for pouring mortar or concrete on the joint portion 110;
The reinforcement step (S50) is
Grid construction step (S51) for constructing a roller-shaped grid 410 in a plurality of rows on the waterproof layer 300; And
And arranging the cross sections of each of the plurality of grids 410 to be adjacent to each other, and then attaching the adjacent cross sections to each other (S52).
When the projection 420 is formed in the cross-section of the grid 410, the protrusion 420 is formed in the cross-section protruding outward, the projection (420) formed on one grid 410 cross section and the projection formed on the other cross section of the grid 410 ( After placing the pair of grids 410 on the top of the waterproof layer 300 so that the 420 is adjacent to each other, a wide and long adhesive tape 430 is constructed to sequentially wrap the upper and lower surfaces of the protrusions 420. Then, when the adhesive tape is applied to the portion where the adhesive tape 430 and the protrusion 420 or the protrusion 420 is not formed, the fixed cable in the cross section adjacent to the longitudinal direction of the grid 410 Fixed using 440,
The grid 410 is
It is made in the form of a grid, the round portion 411 is dug inwardly formed in the corner portion, the round portion 411 is to prevent the breakage or breakage due to stress concentration by dispersing the concentration of stress in the corner portion ,
When the road surface cleaning of the slab 100 exposed in the surface treatment step (S20) is completed, the pouring filling step (S45) for pouring mortar or concrete to the joint 110 formed in the corner of the slab 100; Is composed by
The filling filling step (S45) is
The inclined surface 130 is formed by pouring in a form in which the width is gradually narrowed toward the upper side from the side of the slab 100 in which the joint 110 is formed,
The reinforcement step (S50) is
The grid 410 is constructed to cover the top of the inclined surface 130,
The expansion joint 500
A plate 510 installed at the joint 110 formed at the edge of the slab 100 and symmetrically provided to face each other between the pair of slabs 100;
A high elastic rubber sealant 520 formed between the pair of plates 510 and filled in the oil gap 120;
A stud 530 having a pair of plates 510 protruding outwardly on opposite surfaces not adjacent to each other; And
And an eccentric prevention means 540 for supporting the plate 510 upward as the plate 510 coupled to the slab 100 moves away from the slab 100.
The stud 530 is
Convex and concave to the upper and lower side is made of a zigzag pattern is repeated,
The cross section is made of a circle is provided with a plurality of spaced apart from each other along the longitudinal direction of the plate 510,
The eccentric prevention means 540 is
A lower support surface 541 formed on the bottom surface of the upper convex portion of the stud 530;
An upper support surface 542 formed at an upper end surface of a lower convex portion of the stud 530;
An upper support bar 543 which is provided to be in contact with the lower support surface 541 and is formed to extend in the longitudinal direction of the plate 510 so that each of the plurality of studs 530 is supported; And
A lower support bar 544 provided on the upper support surface 542 so as to be in contact with a lower portion thereof, and formed to extend in the longitudinal direction of the plate 510 to support each of the plurality of studs 530. Construction method of the bridge top plate using a flexible joint having a perfect waterproof function using a high elastic rubber sealant, characterized in that comprising a.
The method according to claim 1,
The adhesive layer forming step (S30) is
Bridge using a flexible joint having a perfect waterproof function using a high elastic rubber sealant, characterized in that the adhesive layer 200 is formed by applying an adhesive to the joint 110 formed on the top and corners of the slab 100 Construction method of the top plate.
delete delete delete delete delete The method according to claim 1,
The high elastic rubber sealant 520 is
A first rubber sealant 521 filled in the oil gap 120 formed between the pair of plates 510; And
And a second rubber sealant 522 disposed above and filled with the first rubber sealant 521.
The thickness of the second rubber sealant 522 is relatively thin compared to the thickness of the first rubber sealant 521 using a high elastic rubber sealant, the construction of the bridge top plate using a flexible joint having a perfect waterproof function Way. delete delete

Images