KR101552349B1 - Salt attack protection type composite structured pier - Google Patents

Abstract

The present invention relates to a pier installed in the coast or a harbor to be used as a docking facility or the like. A precast concrete established member is applied to a base of the pier, a bridge pier, and a horizontal support unit. A wooden decking (31) is applied to an upper plate of the pier to form the pier as a composite structure. A salt resistant synthetic resin coating layer (11) is formed on an outer circumferential surface of a concrete pile (10) constituting the base and the bridge pier. Through the present invention, the pier faithfully performs an essential function of a protruding coast structure on a coastal area, and further secures structural stability by applying precast concrete to a main structure body of the pier and constructability at the same time. The wooden decking (31) is applied to an upper plate exposed to an upper side of a water surface, thereby creating a beautiful appearance and providing a pleasant feeling of walking.

Description

{SALT ATTACK PROTECTION TYPE COMPOSITE STRUCTURED PIER}

The present invention relates to a bridge, which is installed on the shore or a port and used as a docking station. The foundation of the bridge, the pier and the horizontal support are made of precast concrete, A synthetic resin coating layer 11 is formed on the outer circumferential surface of the concrete pile 10 constituting the foundation and the bridge pier.

As a structure protruding from the land to the water side, the bridges used for laying, docking or boarding facilities have various structural forms such as floating type and fixed type, and related related arts are disclosed in Published Patent Application No. 2011-136411.

The fixed pier is a pier fixed to the coastal ground and usually constructed of wood or concrete. The pier is used as a small or temporary boarding facility, a coastal walkway or a waterfront leisure facility, and a concrete pier is a large pier and a mooring facility And so on.

Concrete piers, which are mainly used for large-scale port facilities or port facilities, require vast sites and huge construction costs, and it takes a long period of time to complete the entire process from construction of foundation to installation and curing of roof structure. Piers can be used as permanent structures.

On the other hand, the wooden bridge can be constructed quickly by relatively simple processes such as vertical member type and binding of upper structure, but there is a risk of damage and collapse due to corrosion during long term use, It has a weak point that it can not exhibit sufficient stability.

Despite the weakness of the wooden pavement, however, the preference for wooden pavement has been increasing as the advantage of providing a pleasant walk feeling along with the beautiful appearance and psychological stability of the wood.

Especially, as the interest in marine leisure has been increased, the construction of the marina facility with the combined mooring facilities and the convenient facilities has been activated, so that the marine facilities having structural stability, salt resistance and durability, However, as described above, there is a limit in securing the durability and structural stability in the wooden pier, and the concrete pier is not only formed a crumbly and uniformized landscape, but also seriously destroys the surrounding environment in the construction process .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bridging type bridges in which a vertical member is fixed on a coastal ground and a lower end portion of a pile 10 having a protective synthetic resin coating layer 11 formed on the outer circumferential surface thereof A plurality of piles 10 are arranged and fixed on the shore so that a plurality of decks 31 are installed on the upper part of the girder 20, And are arranged in close contact with each other to form an upper plate.

A cap 40 is mounted on the upper end of the pile 10 and a girder 20 is coupled to the cap 40. An insertion port 17 is formed in the upper end of the pile 10, A through hole 47 is vertically penetrated through the cap 40 and a support hole 27 penetrating through the girder 20 is formed in the end of the girder 20, The insertion holes 17 of the file 10, the through holes 47 of the cap 40 and the support holes 27 of the girder 20 coincide with each other in the planar position at the time of installation of the file 10 on the upper side of the file 10, The support rod 18 having passed through the support hole 27 and the through hole 47 is engaged with the insertion hole 17 and the inner peripheral surface of the insertion hole 17, the through hole 47 and the support hole 27, Shrinkage concrete is filled between the outer circumferential surfaces of the girder 20 and the upper end of the pile 10 and the cap 40 and the girder 20 are connected to each other. And a joining groove 21 and a joining line 32 having a width matching with the joining groove 21 are formed in the lower portion of the deck 31 Consists of a salt damage tolerant composite structure is characterized by a pier which is fixed to decking 31 to the upper surface of the girder (20).

Through the present invention, it is possible to secure the structural stability by applying the precast concrete to the main sphere body of the pier while faithfully performing the basic function of the pier called the water side projecting coastal structure, securing the workability, By applying the wooden deck 31 to the upper plate, it is possible to provide a pleasant appearance as well as a pleasant walking feeling.

In particular, precast concrete is applied to the horizontal member between the foundation, piers and piers to ensure excellent workability and structural stability as a permanent structure, and by applying wooden decking 31 as the top plate, aesthetics and comfort In addition, when the top plate is corroded or damaged due to long-term use, it is possible to replace only the top plate in a state where the bottom permanent structure is in a standing state, thereby reducing the cost of repairing the pier and removing the existing pier and constructing a new pier It is possible to prevent cost and waste of resources.

The concrete pavement 10 is applied to the foundation of the pier and the piers and the cover 10 is formed on the outer surface of the pile 10 by a coating layer 11 made of a synthetic resin having anti- In particular, FRP (Fiber Reinforced Plastic) is applied to the coating layer 11 to secure the strength, thereby preventing the coating layer 11 from being damaged due to repetitive moisture absorption of the wave and impact of the drifting material can do.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Figure 2 is a cross-
3 is a partial cutaway perspective view of the present invention
Figure 4 is a top exploded perspective view of the file of the present invention
Fig. 5 is a perspective view of the girder cut-
Figure 6 is a cross-
7 is a view showing an example of a file and girder construction process of the present invention
8 is a diagram illustrating an example of a deck installation method of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed configuration of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing the appearance of the present invention. As shown in FIG. 1, the present invention is a pile 10, which is a vertical member on a coastal ground, A girder 20 which is a horizontal member is installed on the upper part of the girder 20 and a decking 31 of a wooden plate which is used as a slope .

As shown in Fig. 2, the lower end of the pile 10 on which the covering layer 11 is formed penetrates and is fixed on the coastal ground, and is used as a bridge and bridge pier for bridge type bridges. 10 are arranged in the longitudinal direction of the pier and a concrete girder 20 connecting the upper ends of the adjacent piles 10 is installed in such a manner that both ends of the girder 20 are supported by the piles 10. [

In the present invention, the pile 10, which serves as a primary interest pier, is a concrete pile, and as shown in the sectional view at the lower right end of Fig. 3, a pile 10 of Pretensioned Spin High Concrete (PHC) And as shown in the figure, a coating layer 11 made of a flame-retardant synthetic resin is formed on the outer circumferential surface of the pile 10. [

The formation of the synthetic resin coating layer 11 on the outer circumferential surface of the pile 10 is carried out by spraying or applying a synthetic resin in a molten state, an emulsion state or a state dissolved in an organic solvent.

By forming the coating layer 11 on the outer circumferential surface of the pile 10 in direct contact with the seawater, it is possible to suppress corrosion and deterioration of the structure due to salting, and more particularly, to the coating layer 11 by using FRP (Fiber Reinforced Plastic) It is possible to prevent the coating layer 11 from being damaged due to repetitive moisture absorption of the wave and impact of the drifting material by securing the strength and the impact resistance.

As shown in FIG. 3, a plurality of decks 31 are closely adhered to the upper portion of the girder 20 to form an upper plate, thereby completing a composite structure in which the lower structure of concrete and the wood upper plate are in harmony.

3, the joining recess 21 is formed in the center of the upper surface of the girder 20 in the longitudinal direction of the girder 20, that is, in a direction parallel to the plane center line of the bridge- And a deck 31 is formed on the upper surface of the girder 20 by forming a long line 32 having a width equal to the width of the coupling groove 21 on the upper surface of the deck 31, As shown in FIG.

That is, the joist 32, which is a wooden bar body having a rectangular cross section, is provided in the longitudinal direction of the bridges, and the joist groove 21 formed on the upper surface of the girder 20 is engaged with the joist 32, Are attached and arranged in the longitudinal direction at the central portion of the upper surface of the girder 20 and then a wooden plate chain deck 31 having a rectangular cross section is also arranged on the upper surface of the joist line 32 by screwing or the like, The wooden roof structure is completed.

As described above, in the bridge of the present invention in which the concrete lower structure and the wooden upper plate are combined, the portion exposed to the upper part of the water surface, particularly, the part caught in the field of view of the actual user is closed with wood such as the decking 31 and the joist line 32 , And there is no significant difference from the appearance of a general wooden pavement. Therefore, the beautiful aesthetics of the wooden pavement and the pleasant walking feeling, the structural stability and durability of the concrete pavement can be secured at all.

In addition, in the pavement 10 of the present invention, as described above, the covering layer 11 made of a flame-retardant synthetic resin is formed in the pile 10, which is in contact with seawater, The performance and stability of the bridges can be fundamentally reduced, and the durability can be remarkably improved.

In addition, the concrete pile 10 and the girder 20, which are the substructures, when the aging and damage such as the deck 31 constituting the upper plate are formed due to long-term use, the decking 31 and the joist 32 It is possible to easily replace only the upper plate, so that it is possible to reduce the cost of repairing the pier and to prevent the waste of cost and resources due to the disassembly of the existing pier and the construction of the new pier.

In the present invention, a file 10 serving as a foundation and a bridge is seated and fixed on an upper end of a cap 40 connecting a file 10 and a girder 20, The connection structure of the pile 10 and the cap 40 and the structure of the girder 20 are shown in Fig. 4 and Fig. 5, respectively.

4, the cap 40 is seated on the upper end of the pile 10, the insertion port 17 is pierced on the upper surface of the pile 10, the cap 40 is attached to the cap 40, A through hole 47 penetrating the upper and lower portions is drilled.

The insertion port 17 on the upper surface of the pile 10 and the through holes 47 of the cap 40 are formed in the same number and the cap 40 is placed on the upper end of the pile 10, And the center of the through hole 47 of the cap 40 are formed so that the insertion hole 17 of the planar surface file 10 and the center of the through hole 47 of the cap 40 coincide with each other. (18) is inserted.

Although not shown in FIG. 4, the end of the girder 20 is fixedly coupled to the upper portion of the cap 40. The end of the girder 20 is fixed to the cap 40 so that the girder 20 having a rectangular cross- A pair of side walls 41 which are parallel to the girder 20 are projected upward so that the inner surface of the side wall 41 of the cap 40 and the inner surface of the girder 20 when the girder 20 is engaged, As shown in FIG.

5 is a partial cutaway perspective view showing the girder 20 of the present invention in detail. As shown in the figure, the girder 20 of the present invention is a kind of rectangular beam, And a coupling groove 21 is formed on the upper surface of the upper cap 40. Support holes 27 are formed in the upper and lower ends at both ends.

The girder 20 of the present invention can be pre-manufactured by the precast concrete method and can be installed on the upper side of the pile 10 after being transported to the site. As shown in Fig. 5, A reinforcing layer 29 is formed.

5, the reinforcing layer 29 is formed in the shape of a rectangular container to serve as a mold during the pre-casting process of the girder 20. The reinforcement layer 29 is made of high strength FRP (Fiber Reinforced Plastic) And after the girder 20 is completed, it plays a role of reinforcing the girder 20 and at the same time protecting the surface of the girder 20 from salt corrosion or corrosion.

As described above, in the present invention, the connection between the pile 10 and the cap 40 as the lower structure and the vertical member and the girder 20 as the upper structure and the horizontal member is such that the cap 40 is seated on the upper end of the pile 10 And a through hole 47 is formed in the cap 40 so as to penetrate the cap 40 up and down. The cap 40 is connected to the girder 20, A support hole 27 is formed at the end of the girder 20 so as to penetrate the girder 20 up and down. The insertion holes 17 and the through holes 47 of the cap 40 and the support holes 27 of the girder 20 coincide with each other so that the support bars 27 and the support rods 27 18 are coupled to the insertion port 17. The coupling structure of the piles 10 to the girders 20 and the installation structure of the wooden roof structure on the girders 20 are shown in Fig.

6 is a cross-sectional view of a bridge type bridges according to the present invention. In the illustrated embodiment, the girders 20 supported by the piles 10 are horizontally spaced apart from each other by a pair of girders 20 on the cross- The pair of girders 20 are configured so as to be symmetrical with respect to the axis of the bridges on the transverse plane.

That is, as shown in FIG. 6, the configurations of the left and right sides are symmetrical with respect to the center line of the cross section of the present invention.

When the means for attaching and fixing the decking 31 is provided on the upper surface of the girder 20, the lower structure and the upper deck 31 As shown in FIG. 5, the coupling groove 21 is formed on the upper surface of the girder 20, and the joining line 21 is coupled with the coupling groove 21 as shown in FIG. It is possible to secure the convenience of the initial construction by ensuring that the deck 31 can be fixed without any damage to the girder 20 in a manner such that the deck 31 can be used for a long time, It is possible not only to secure the operation convenience but also to secure the durability of the girder 20 even in disassembling the upper plate structure 31 and constructing a new top plate structure.

6, a support rod 27 for connecting the support hole 27 of the girder 20, the through hole 47 of the cap 40 and the insertion port 17 of the pile 10, Shrinkage concrete is injected into the space between the inner peripheral surface of the support hole 27, the through hole 47 and the insertion hole 17 and the outer peripheral surface of the support rod 18, , The cap (40) and the girder (20).

7 shows the binding structure and concrete working method between the file 10, the cap 40 and the girder 20 in a stepwise manner. In the construction of the present invention, once the file 10 is intruded into the coastal ground, The support shaft 18 is inserted into the upper end of the pile 10 and the cap 40 is seated on the upper end face of the pile 10. The support shaft 18 having passed through the through hole 47 of the cap 40 Is exposed to the upper side of the cap (40).

The cap 40 provided at the upper end of the pile 10 is formed in a disk or cylinder having a diameter identical to the diameter of the pile 10 as in the illustrated embodiment, There is a gap between the support bar 18 and the through hole 47 of the cap 40 or the insertion hole 17 of the pile 10 while the support bar 18 is engaged. The cap 40 can be detached from the correct position due to the impact which may be caused by the impact of the cap 40. In the present invention, the holder 50, which surrounds the boundary between the pile 10 and the cap 40, 10) Temporarily fix it on the top.

As shown in Fig. 7, the holder 50 is an adhesion and fixing means in which one end of a pair of plate members curved in an arcuate shape is connected by a folding hinge 51 and the other end is fastened by a screw or the like, The inner diameter of the pile 10 and the inner diameter of the cap 40 are made to coincide with the inner diameter of the arc formed by the pile 10 and the cap 40 so that the inner peripheral surface of the holder 50 is close to the outer peripheral surface of the upper end of the pile 10 and the lower end of the cap 40 Respectively.

One end of the girder 20 is coupled to the upper surface of the cap 40 when the cap 40 is temporarily fixed to the upper end of the pile 10 by the holder 50. The support hole 27, The support rods 18 are coupled to the girders 20 so that the girders 20 and the caps 40 are coupled to each other so that the girders 20 having a rectangular cross section can be stably engaged and fixed to the caps 40 A pair of side walls 41 which are parallel to the girder 20 are projected upward so that the inner surface of the side wall 41 of the cap 40 and the inner surface of the girder 20 when the girder 20 is engaged, As shown in FIG.

When the connection of the girder 20 and the cap 40 is completed, the non-shrinkage concrete is injected through the support hole 27 and the inner peripheral surface of the support hole 27, the through hole 47 and the insertion hole 17, The cap 40 and the girder 20 by filling the space between the outer peripheral surfaces of the pile 10 and the outer peripheral surfaces of the pile 10,

7, the coupling grooves 21 formed over the entire extension of the girder 20 are extended to both sides of both ends of the girder 20 so that both sides of the coupling grooves 21 are formed smoothly The support holes 27 are formed on the both sides of the smoothly formed coupling grooves 21. The ends of the girders 20 are formed flat so that the shrinkage of the concrete is completed through the support holes 27, So that the connecting portions between the girders 20 are integrated and the coupling grooves 21 can be continuously formed in the corresponding portions.

7, ends of two different girders 20 are connected to each other at the upper end of one file 10, and concrete is laid at a connection site between the girders 20, The concrete is inserted between the insert mold 28 and the reinforcing layer 29 at the end of the girder 20 after the insert mold 28 is joined to the joint groove 21 at the joint region between the girders 20. At this time, The coupling grooves 21 can be continuously formed in a constant shape on the joining portions between the girders 20 as shown in the upper right portion of the drawing.

A coupling groove 21 is formed in the longitudinal direction of the girder 20 at the center of the upper surface of the girder 20 and a joining groove 21 and a joining groove 21 The deck 31 is fixed to the upper surface of the girder 20. The deck 31 is formed separately from the deck 31 as shown on the left side of Fig. A deck 31 is attached to the upper part of the joist line 32 or a protrusion in the form of a joist 32 is formed under the deck 31 as shown on the right side of the joining groove 21 And a method in which the projections are engaged with the coupling grooves 21 of the girder 20, for example.

10: File
11:
17:
18: support rod
20: Girder
21: Coupling groove
27: support ball
28: Insert mold
29: reinforced layer
31: Decking
32: Joins
40: Cap
41: side wall
47: Through hole
50: Holder
51: Folding hinge

Claims (2)

A bridge type brim having a pile 10 fixed to a coastal ground has a lower end portion of a pile 10 formed with a protective synthetic resin coating layer 11 on the outer circumferential surface thereof, 10 and a plurality of decks 31 are closely attached to the upper portion of the girder 20 to form an upper plate. In the structure pier,
A cap 40 is mounted on the upper end of the pile 10 and a girder 20 is coupled to the cap 40. An insertion port 17 is formed in the upper end of the pile 10;
A through hole 47 is vertically passed through the cap 40 so as to pass through the cap 40;
At the end of the girder (20), a support hole (27) penetrating the girder (20) vertically is pierced;
The insertion hole 17 of the pile 10 and the through hole 47 of the cap 40 and the support hole 27 of the girder 20 at the upper end of the pile 10 of the cap 40 and the girder 20 The support rods 27 having passed through the support holes 27 and the through holes 47 are engaged with the insertion ports 17;
The shrinkage concrete is filled between the inner circumferential surface of the insertion port 17, the through hole 47 and the support hole 27 and the outer circumferential surface of the support rod 18 so that the upper end of the pile 10, the cap 40 and the girder 20 Lt; / RTI >
An engaging groove 21 is formed in the longitudinal direction of the girder 20 at the center of the upper surface of the girder 20 and a joining line 21 having a width equal to the width of the engaging groove 21 is formed below the decking 31 , And a decking (31) is fixed on the upper surface of the girder (20). delete

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