KR102166382B1 - Floating pier with buoyancy body - Google Patents

Abstract

The present invention relates to a floating pier connected with a buoyancy body, which connects a floating pier to the shore. According to the present invention, the floating pier connected with a buoyancy body, which is a buoyancy body installed in an accommodating space of a floating pier having a floating pier body of a truss shape in which a plurality of pipes are connected to each other to form the accommodating space, comprises: a joint frame connected to a floating pier body; a plurality of buoyant material boards stacked and bonded having a joint frame interposed therebetween; and a coating layer coated with a synthetic resin over the entire outer surface of the stacked and bonded buoyant material boards. The floating pier connected with a buoyancy body of the present invention is manufactured by stacking and bonding the buoyant material boards by having the joint frame, which is connected to the floating pier body, interposed therebetween and then, coating the entire outer surface of the stacked and bonded buoyant material boards with a synthetic resin agent. Also, the floating pier connected with a buoyancy body of the present invention can be assembled and installed to the floating pier of a truss shape, can be simply manufactured, can be manufactured to adjust buoyancy by a buoyant material, and can increase the stiffness of the buoyancy body and also, the stiffness of the floating pier body during installation.

Description

Floating pier with buoyancy body}

The present invention relates to a buoyant body is connected to a floating pier, and more particularly, to a buoyant body is connected to a floating pier that connects the shore and the floating pier.

In general, a floating pier is a floating structure that moves freely up and down depending on the height of the water surface, and is used for people to get on and off or to unload. The floating pier is provided with a buoyant body that can float on water, and a top plate of a certain area is installed on the buoyancy body.

Such a floating pier seals the part containing the buoyant body in order to prevent water from entering the buoyant body in contact with the water. In the case of forming a sub-pier with a closed structure as described above, since an impact is applied by waves or the like, an impact is applied to the sub-pier and the sub-pier is shaken, resulting in poor overall stability.

In addition, in order to reduce the total weight of the floating pier, a material such as FRP is used to make a floating pier. However, in this case, the overall cost increases, and the problem of sealing the part accommodating the buoyant body cannot be solved.

Accordingly, the applicant of the present invention filed a truss-shaped sub-pier, which can reduce the weight of the entire sub-pier and prevent damage and shake due to external impacts, and minimize the vibration caused by waves and wind, as Korean Patent Application No. 2019-0077386. I have a bar.

Korean Patent Registration No. 10-0424277

An object of the present invention is to provide a sub-pier with a buoyancy body that can be assembled and installed on a truss-shaped sub-pier, which simplifies manufacturing and can be manufactured to adjust the buoyancy by the buoyant material.

In order to achieve the above object, the sub-pier to which the buoyant body according to the present invention is connected is a buoyant body installed in the receiving space of the sub-pier having a truss-shaped sub-pier body connected to each other so that a plurality of pipes form a receiving space, and connected to the sub-pier It includes a joint frame to be formed, a plurality of buoyancy material boards laminated and bonded with the joint frame therebetween, and a coating layer coated with synthetic resin over the entire outer surface of the laminated and bonded buoyancy material board.

The joint frame is a frame to which a plurality of pipes are connected, and has a flange connected to a truss-shaped sub-bridge body at an end of the pipe.

The plurality of pipes of the joint frame are connected to each other at the center of the plane of the buoyancy body, and the flanges are stacked and positioned to protrude outside the corners of the bonded buoyancy material board.

The manufacturing method of the buoyancy body of the sub-pier according to the present invention is a method of manufacturing a buoyancy body installed in the receiving space of the sub-pier, which has a truss-shaped sub-pier body connected to each other so that a plurality of pipes form an accommodation space. A plurality of buoyancy material boards are laminated and bonded with the joint frame interposed therebetween, and then the laminated and bonded buoyancy material board is coated with synthetic resin over the entire outer surface.

The synthetic resin is preferably a polyurethane coating.

According to the sub-pier to which the buoyant body is connected according to the present invention, it can be assembled and installed in a truss-shaped sub-pier, and it is easy to manufacture and can be manufactured to adjust the buoyancy by the buoyant material. It works.

1 is an overall view showing an auxiliary pier to which a buoyancy body is connected according to an embodiment of the present invention.
2 is a side view showing the sub-pier of FIG. 1.
3 is a bottom view showing the sub-pier of FIG. 1.
4 is a view showing that the pipes of the sub-piers body of FIG. 1 are coupled to each other.
Figure 5 is a view showing the buoyancy body of Figure 1;
6 is a view showing a state in which the buoyancy body is coupled to the accommodation space of the sub-pier body of FIG. 1.
7 is a diagram conceptually showing an example in which a pipe reinforcement material is coupled to a pipe in the sub-pier of FIG. 1.
FIG. 8 is a view conceptually showing another example in which a pipe reinforcement member is coupled to a pipe in the sub pier of FIG. 1.
9 is a view showing that a plurality of pipe reinforcement members are installed in the pipe in the sub-pier of FIG. 1.
10 is a view showing that a plurality of pipe reinforcements are inserted into the pipe at three angles in the sub-pier of FIG. 1.
FIG. 11 is a diagram illustrating that a plurality of pipe reinforcements are inserted into a pipe to form a first angle and a second angle different from each other in the sub-pier of FIG. 1.
FIG. 12 is a view showing that an anchor chain is coupled to a lower pipe of a main body of an auxiliary pier of FIG. 1.
13 is a view showing that a pipe reinforcement is installed in the mooring column of the sub-pier of FIG. 1.
14 is a view showing that the sub-jetty of FIG. 1 is combined with another sub-jetty.
FIG. 15 is a diagram illustrating that first connecting pipes of two adjacent sub-piers are coupled to each other in FIG. 14.
16 is a view showing a cross section of the sub-piers combined with each other in FIG. 14.
17 is a view showing a cross-section of another example in which the sub pier of FIG. 1 is coupled to another sub pier.
18 is a view for explaining the steps of a method of manufacturing a buoyancy body of a sub-pier according to an embodiment of the present invention.

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

Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, so at the time of the present application, they can be replaced. It should be understood that there may be various equivalents and variations.

1 is an overall view showing an auxiliary pier to which a buoyancy body is connected according to an embodiment of the present invention, FIG. 2 is a side view showing the auxiliary pier of FIG. 1, and FIG. 3 is a bottom view showing the auxiliary pier of FIG. 1.

As shown in Figures 1 to 3, the sub-pier 100 to which the buoyancy body is connected according to an embodiment of the present invention includes a sub-pier body 110, a sub-pier top 120, a buoyant body 130, and a pipe reinforcement 140 , It may include an anchor chain 150, a joint pipe 160, a mooring column 170.

The sub-pier main body 110 forms a truss shape by connecting a plurality of pipes 111, 112, 113, and 114 to each other, and a plurality of accommodation spaces 110a are formed by the plurality of pipes 111, 112, 113, and 114 do. The pipes 111, 112, 113, and 114 are made of SUS material to prevent corrosion, and are preferably manufactured with an appropriate thickness in consideration of manufacturing cost and weight. In this embodiment, the pipes 111, 112, 113, and 114 have a circular cross section, but are not limited thereto and may have various shapes.

The sub-bridge body 110 may include a plurality of upper pipes 111, a plurality of lower pipes 112, a plurality of first connection pipes 113, and a plurality of second connection pipes 114. The upper pipe 111 and the lower pipe 112 are located spaced apart from each other. The first connection pipe 113 is vertically coupled to the upper pipe 111 and the lower pipe 112. In the present embodiment, the sub-piers body 110 has a hexahedral shape by the plurality of upper pipes 111, the plurality of lower pipes 112, and the plurality of first connection pipes 113, but is not limited thereto. The plurality of second connection pipes 114 are diagonally coupled to the plurality of upper pipes 111 and the plurality of lower pipes 112. Since the sub pier body 110 includes the second connection pipe 114, the strength of the sub pier main body 110 having a truss shape can be reinforced. The sub-pierce body 110 may have a form in which a rectangular parallelepiped is stacked.

In this embodiment, when the sub-pier 100 is installed on the water surface, the lower pipe 112 is located below the water surface L and the upper pipe 111 is located above the water surface L. When the sub-bridge body 110 has a rectangular parallelepiped stacked form, only some of the lower pipes 112 may be located under the water surface L.

In this embodiment, a plurality of pipes 111, 112, 113, and 114 are joined by welding a portion where the pipes 111, 112, 113, and 114 are in contact. At this time, as shown in Fig. 4, in order to allow the pipes coupled to the side surfaces of the cylindrical pipes 111, 112, 113, and 114 to be joined without gap, the ends of the pipes to be joined are rounded inward. 4 is a view showing that the pipes of the sub-piers body of FIG. 1 are coupled to each other.

The floating pier top plate 120 is a plate-shaped member that is coupled to the upper side of the plurality of upper pipes 111 of the auxiliary pier body 110, and is made of reinforced concrete, steel plate, and wood, and can be used for boarding and disembarkation of passengers and loading of cargo. have. A railing 121 may be installed at the edge of the upper pier 120.

5 is a view showing the buoyancy body of Figure 1, Figure 6 is a view showing a state in which the buoyancy body is coupled to the accommodation space of the sub-piers body of Figure 1;

As shown, the buoyancy body 130 is installed in a plurality of accommodation spaces 110a formed in the sub-pier body 110. The buoyancy body 130 may be plural. When the plurality of buoyancy bodies 130 are installed in all the receiving spaces 110a formed in the sub-piers body 110, the influence of the fluid (wave and wind) on the sub-piers 100 increases. Accordingly, as shown in FIG. 3, it is preferable that the buoyancy body 130 is installed in a part of the accommodation space 110a to secure a space through which the fluid passes. However, the buoyancy body 130 may be densely disposed at a portion of the sub-jetty body 110 to which a footbridge (a bridge connecting the sub-jet and the coast, not shown) is connected to reinforce the buoyancy. That is, in the present invention, the buoyancy body 130 is concentrated and arranged in a portion requiring buoyancy, and the number of buoyant bodies 130 is reduced in a portion affected by an external force, so that the auxiliary pier 100 can be efficiently manufactured.

As shown in FIG. 5, the buoyancy body 130 includes a joint frame 131 connected to the sub-bridge body 110, and a plurality of buoyancy material boards 132 laminated and bonded with the joint frame 131 interposed therebetween. , It includes a coating layer 133 coated with a synthetic resin over the entire outer surface of the laminated and bonded buoyancy material board 132.

The joint frame 131 is a frame to which a plurality of pipes 131-1 are connected, and has a flange 131-2 connected to the truss-shaped sub-bridge body 110 at an end of the pipe 131-1. A plurality of pipes (131-1) of the joint frame (131) is connected to each other by welding at the center of the plane of the buoyancy body (130), the flange (131-2) is laminated to the outside of the corner of the bonded buoyancy material board 132 It is located protruding.

The joint frame 131 is manufactured by being inserted into each of the upper and lower sides of the buoyancy body 130, but only one joint frame is inserted in the middle to be manufactured. In this embodiment, the joint frame 131 is arranged to be stably supported by protruding out of the corners of the buoyancy material board 132 in an X-shape by the pipe 131-1, but the buoyancy material board 132 in a +-type It may be arranged to protrude outward from the center of the side of the. The method of manufacturing the buoyancy body will be described later.

The buoyancy material board 132 is a plate formed of expanded polystyrene (EPS), but is not limited thereto, and various foam materials capable of generating buoyancy may be used. In this embodiment, the buoyancy material board 132 has a hexahedral shape according to the shape of the accommodation space 110a. The coating layer 133 is a layer coated with polyurethane, but may be coated with various synthetic resin coating agents.

In order to couple the buoyancy body 130 to the sub-bridge body 110, as shown in FIG. 6, a pipe connection pipe 115 is attached to the first connection pipe 113 of the sub-bridge body 110. A flange 115-1 is formed at the end of the pipe fitting pipe 115. When the buoyancy body 130 is located in the accommodation space 110a of the sub-bridge body 110, the flange 115-1 of the pipe fitting pipe 115 and the flange 131-2 of the joint frame 131 are in contact with each other. do. At this time, each of the flanges 115-1 and 131-2 is coupled by bolting or the like.

FIG. 7 is a diagram conceptually illustrating an example in which a pipe reinforcement material is coupled to a pipe in the sub pier of FIG. 1, and FIG. 8 is a view conceptually illustrating another example in which a pipe reinforcement material is coupled to a pipe in the sub pier of FIG. 1, and FIG. 9 Is a view showing that a plurality of pipe reinforcements are installed in the pipe in the sub-pier of FIG. 1, FIG. 10 is a view showing that a plurality of pipe reinforcements are inserted into the pipe at three angles in the sub-pier of FIG. 1, and FIG. 11 is It is a view showing that a plurality of pipe reinforcements are inserted into the pipe so as to form different first angles and second angles in the sub-piers of

The pipe reinforcement member 140 is inserted into and fixed to the pipes 111, 112, 113, and 114 constituting the sub-bridge body 110. By inserting the pipe reinforcement material 140 into the pipes 111, 112, 113 and 114, the rigidity of the pipes 111, 112, 113, and 114 increases. In particular, when the main body 110 of the sub-pier 100 has a truss shape as in the present invention, it is important to increase the rigidity of the pipes 111, 112, 113, and 114. The pipe reinforcement 140 may have various shapes such as a cylindrical shape, a prism shape, and a plate shape. Considering that the strength of the main body 110 is to be reinforced, it is preferable that the pipe reinforcement 140 has a plate shape. This is because the plate-shaped pipe reinforcement 140 has a greater resistance to a load (bending moment) acting in the radial direction of the pipes 111, 112, 113, and 114.

As an example, the pipe reinforcement 140 is inserted through the side of the pipe 111 as shown in (a) and (b) of FIG. 7. To this end, slot holes may be formed at the first position P1 and the second position P2 on the side of the pipe 111, respectively. The pipe reinforcement member 140 is inserted into the slot hole at the first position P1 to reach the slot hole at the second position P2. When the insertion of the pipe reinforcement 140 is completed, the pipe reinforcement 140 and the pipe 111 are welded (W) in each slot hole. The pipe reinforcement 140 is fixed through welding (W), and water can be prevented from entering the pipe 111.

In another embodiment, as shown in FIGS. 8A and 8B, a slot hole is formed in the first position P1 of the side of the pipe 111, and the pipe reinforcement 140 is formed in the second position P2. A perforated hole is formed through which) cannot pass. A plurality of perforated holes may be formed. The pipe reinforcement member 140 is inserted into the slot hole of the first position P1 to reach the second position P2. At this time, since the pipe reinforcement 140 cannot pass through the perforated hole, the pipe reinforcement 140 comes into contact with the inner wall of the pipe 111. In this state, the pipe reinforcement 140 and the pipe 111 are welded (W) in the slot hole and the perforated hole. When the pipe reinforcement 140 is fixed by forming the perforated hole in the second position P2 as described above, the working time can be shortened compared to forming the slot hole, and construction cost can be reduced.

The pipe reinforcement 140 may be plural. A plurality of pipe reinforcements 140 are inserted into one pipe 111 and fixed while being disposed to cross each other in the longitudinal direction of the pipe 111.

In this case, the pipe reinforcement 140 may have different angles inserted into the side of the pipe 111 and the pipe reinforcement 140 adjacent to each other. In one embodiment, as shown in FIG. 9, a plurality of pipe reinforcements 140 are inserted to form a right angle to each other. In another embodiment, as shown in FIG. 10, a plurality of pipe reinforcements 140a, 140b, 140b may be inserted at three or more angles.

In another embodiment, as shown in FIG. 11, the first pipe reinforcement 140a and the second pipe reinforcement 140b adjacent to each other may achieve different first angles θ1 and second angles θ2. have. The second angle θ2 is smaller than the first angle θ1. In order to have a stronger rigidity against the external force (F) applied to the pipe 111, it is preferable that the second angle (θ2) faces the external force (F). As such, the main body 110 may determine the insertion direction of the pipe reinforcement 140 in consideration of the direction of the external force F applied to the pipe 111.

FIG. 12 is a view showing that an anchor chain is coupled to a lower pipe of a main body of an auxiliary pier of FIG. 1.

As shown in FIG. 12, in the sub-bridge 100 according to an embodiment of the present invention, an anchor chain 150 may be coupled to the lower pipe 112. The auxiliary pier 100 needs an anchor for fixing, and the anchor needs to move up and down between the auxiliary pier 100 and the underwater bottom surface. These anchor chains corrode quickly when exposed to water frequently. The present invention is coupled to the lower pipe 112 so that the anchor chain 150 can move only under the water surface to solve this problem. The anchor chain 150 and the lower pipe 112 may be joined by welding.

When the anchor chain 150 is coupled to the lower pipe 112, a large load is applied to the lower pipe 112. In order to solve this, a pipe reinforcement member 140 is installed on the lower pipe 112. Even if the anchor chain 150 is coupled to the lower pipe 112 having the pipe reinforcement 140, the lower pipe 112 is not bent or broken by a load (bending moment). That is, the pipe reinforcement member 140 has a slot hole formed in the first position P1 on the side of the lower pipe 112 in the longitudinal direction of the lower pipe 112, as shown in the enlarged portion of FIG. In the second position P2, a plurality of perforated holes through which the pipe reinforcement 140 cannot pass is formed. The pipe reinforcement member 140 is inserted into the slot hole of the first position P1 to reach the second position P2. At this time, since the pipe reinforcement 140 cannot pass through the plurality of perforated holes, the pipe reinforcement 140 comes into contact with the inner wall of the pipe 111. In this state, the pipe reinforcement member 140 and the lower pipe 112 are welded in the slot hole and the plurality of perforated holes. When the pipe reinforcement 140 is fixed by forming a plurality of perforated holes in the second position P2 as described above, the working time can be shortened compared to forming the slot hole, and construction cost can be reduced. The pipe reinforcement 140 may be plural. The plurality of pipe reinforcements 140 are inserted and fixed while being disposed to cross each other in the longitudinal direction of the lower pipe 112.

In another embodiment, concrete may be poured into an empty space inside the lower pipe 112. When concrete is poured into the lower pipe 112 and cured, the rigidity of the lower pipe 112 increases. In addition, since the weight of the lower pipe 112 located at the lower side of the main body 110 increases, the center of gravity of the sub-pier 100 is stably formed, and overall stability is increased, such as a decrease in vibration due to external force.

13 is a view showing that a pipe reinforcement is installed in the mooring column of the sub-pier of FIG. 1.

As shown in FIG. 13, in the sub-pier 100 according to an embodiment of the present invention, at least one mooring post 170 to which a rope is connected may be coupled to the upper pipe 111 of the edge. The mooring column 170 includes a vertical pipe 171 that is coupled by welding a portion in contact with any one of the upper pipes 111, and at least one that extends horizontally to a predetermined height of the vertical pipe 171 to prevent separation of the connected rope. It includes a horizontal pipe 172. At this time, the vertical pipe 171 is processed to be rounded inward at the end to be joined to be joined to the upper pipe 111 without gap. The horizontal pipe 172 is processed to be rounded inward at the end to be coupled to be joined to the vertical pipe 171 without gap.

Since external force in the horizontal direction is concentrated in the vertical pipe 171 of the mooring column 170 by the shaking of the sub-pier 100 due to wind and waves, a pipe reinforcement 140 is inserted therein to reinforce the rigidity against external force. To this end, slot holes may be formed at the first position P1 and the second position P2 on the side of the vertical pipe 171, respectively. The pipe reinforcement member 140 is inserted into the slot hole at the first position P1 to reach the slot hole at the second position P2. When the insertion of the pipe reinforcement 140 is completed, the pipe reinforcement 140 and the vertical pipe 171 are welded in each slot hole. The pipe reinforcement 140 is fixed through welding, and water can be prevented from entering the vertical pipe 171. The plurality of pipe reinforcements 140 may be plural. A plurality of pipe reinforcement members 140 are inserted and fixed while being disposed to cross each other in the longitudinal direction of the vertical pipe 171.

In addition, various methods described in FIGS. 8 to 11 may be used as a form of reinforcing the rigidity of the mooring column 170 by inserting a plurality of pipe reinforcements 140.

FIG. 14 is a view showing that the sub pier of FIG. 1 is coupled to another sub pier, and FIG. 15 is a view showing that the first connecting pipes of two adjacent sub piers are coupled to each other in FIG. 14, and FIG. It is a diagram showing the combined cross section of the combined sub-pier.

As shown in FIG. 14, a sub-pier according to an embodiment of the present invention may be connected to another adjacent sub-pier. To this end, joint pipes 160 are installed horizontally at adjacent portions of each sub-pier, that is, the first connection pipe 113 of each sub-pier. The joint pipe 160 is processed to be rounded inward at the end of the joint pipe to be joined to the first connection pipe 113 without gap. Flanges 161 are respectively installed at ends of the joint pipes 160 adjacent to each other to be coupled to each other.

Since the load (bending moment) is concentrated at the joint portion of the flange 161 of the joint pipes 160 by waves and wind at sea, the connection structure between the sub-piers 100 may become weak. To solve this, a joint pipe reinforcement material 165 is installed inside the neighboring joint pipes 160.

That is, as shown in Figs. 15 and 16, after inserting and fixing the joint pipe reinforcement material 165 into the joint pipes 160 communicated with each other adjacent to each other, the ends of the joint pipe 160 are flanged to each other. ) By combining, it is possible to safely maintain the connection between the sub-piers 100 by improving the rigidity of the connecting portion of the sub-piers.

The joint pipe reinforcement 165 includes a first plate 165-1 of a certain length and a second plate 165-2 of a certain length that is orthogonally coupled to the first plate 165-1. The joint pipe reinforcement 165 is preferably formed in a symmetrical cross-section considering that external force is applied to the flange 161 in various directions. However, in the present embodiment, the cross section of the joint pipe reinforcement 165 is cross-shaped, but is not limited thereto and may be formed in various shapes having a symmetrical structure. In addition, in the present embodiment, the number of plates of the joint pipe reinforcement 165 is two, but it is formed in a coupling structure of three or more to further improve the rigidity of the sub-bridge connection portion.

In order to fix the joint pipe reinforcement material 165 inside the joint pipes 160, a first plate 165-1 and a second plate 165-2 are connected to each other and communicate with each other. A plurality of guide holes 160a into which both ends of the width direction can be slidingly inserted are formed. In this case, the plurality of guide holes 160a are formed to have a predetermined length along the length direction of the joint pipe 160 at the end of the joint pipe 160. The length of the guide hole 160a is formed smaller than the length of the joint pipe reinforcement 165.

When the joint pipe reinforcement 165 is inserted into any one of the joint pipes 160 through the plurality of guide holes 160a, the joint pipe reinforcement 165 and the joint pipe 160 in each guide hole 160a Weld (W). Thereafter, the flange 161 is coupled to the end of any one of the joint pipes 160 by welding (W) while a part of the joint pipe reinforcement 165 protrudes to the outside of any one of the joint pipes 160.

Each guide hole 160a may be formed of a plurality of welding holes spaced at predetermined intervals in the longitudinal direction of the joint pipe 160. In this case, it is preferable that a plurality of guide grooves (not shown) formed in a predetermined length to communicate with the plurality of welding holes and guide the joint pipe reinforcement 165 are formed inside the joint pipe 160.

Welding is limited in water. In this embodiment, a part of the joint pipe reinforcement 165 protruding to the outside of one (right) joint pipe 160 for connection between the sub-piers 100 on the water surface is the other (left) joint pipe 160 Insert sliding inside.

At this time, a part of the protruding joint pipe reinforcement 165 is in contact with the inner wall of the joint pipe 160 of the other (left). To this end, as shown in FIG. 16, the width of the portion inserted into the inside of the other (left) joint pipe 160 is inserted into the inside of any one (right) joint pipe 160 and welded (W) It may be formed to be smaller than the width of the portion. However, the invention is not limited thereto. For example, the entire width of the joint pipe reinforcement 165 is formed the same, and the inner diameter of the other (left) among the joint pipes 160 coupled to each other is relatively larger than the inner diameter of any one (right). Can be formed.

Another flange 161 is coupled to the joint pipe 160 of the other (left side), so that the two sub-bridges are connected to each other by being bolted to the flange 161 of the neighboring joint pipe 160.

17 is a view showing a cross-section of another example in which the sub pier of FIG. 1 is coupled to another sub pier.

As shown in FIG. 17, a third plate 166 fixed through the joint pipe 160 of any one (right side) may be further installed in the sub-pier according to another embodiment of the present invention. To this end, a pair of through holes 160b facing in the radial direction are formed in any one of the joint pipes 160. After the third plate 166 is inserted through the through hole 160b, it is fixed to any one of the joint pipes 160 by welding (W).

Each of the joint pipes 160 is coupled to each other by welding the flanges 161 so that the two sub-piers are connected to each other by bolting the flanges 161 of the joint pipe 160 and the third plate 166 in the water.

18 is a view for explaining the steps of a method of manufacturing a buoyancy body of a sub-pier according to an embodiment of the present invention.

As shown in (a) to (d) of FIG. 18, the buoyancy body 130 shown in FIGS. 5 and 6 is a plurality of buoyancy materials with a joint frame 131 connected to the sub-bridge body 110 interposed therebetween. After the board 132 is laminated and bonded (FIG. 18A and B), and coated with a synthetic resin over the entire outer surface of the laminated and bonded buoyancy material board 132 (FIG. 18C). Fabrication of the buoyancy body 130 is completed (FIG. 18D).

In the portion of the buoyancy material board 132 where the joint frame 131 is inserted and contacted, a groove is first formed according to the shape of the joint frame 131, and the buoyancy material board 132 is aligned and stacked. Bonding of the buoyancy material board 132 may be bonded with various adhesives or bonded by pressure or thermal pressure.

The synthetic resin is preferably a polyurethane coating agent, but can be coated with various synthetic resin coating agents. The coating method can be coated by various methods such as spray coating.

The structure and details of the buoyancy body 130 comprising the joint frame 131 and the buoyancy material board 132 and the coating layer 133 have been described above in the description of FIGS. 5 and 6, and thus detailed descriptions thereof will be omitted.

According to the method of manufacturing the buoyancy body 130 by stacking the buoyancy material boards 132 in this way, the manufacture of the buoyancy body 130 is simplified, and an intermediate material or an intermediate buoyancy material of a different material is inserted in the middle of the buoyancy material or It can be manufactured to adjust the buoyancy by the buoyant material. And, since the joint frame 131 for installation in the accommodation space 110a of the buoyancy body 110 is connected through the middle of the buoyancy body 130, while facilitating the manufacture of the buoyancy body 130 , There is an effect of increasing the stiffness of the buoyancy body 130 itself and increasing the stiffness of the sub-jetty body 110 when installed in the sub-jetty body 110.

As described above, the present invention is not limited thereto, although it has been described by a limited embodiment and the drawings, and the technical spirit of the present invention and the equality of the claims to be described below by those of ordinary skill in the art to which the invention belongs. Of course, various modifications and variations are possible within the range.

100: floating pier
110: secondary pier main body 120: secondary pier upper plate
130: buoyancy body 131: joint frame
132: buoyancy material board 132: coating layer
140: pipe reinforcement 150: anchor chain
160: joint pipe 170: mooring column
L: water surface W: welding

Claims (5)

A plurality of pipes connected to each other to form an accommodation space; A buoyancy body positioned in at least one of the accommodation spaces of the sub-piers body; And a plurality of pipe reinforcements inserted and fixed through at least one side of the plurality of pipes,
The buoyancy body includes a joint frame connected to the sub-bridge body, a plurality of buoyancy material boards laminated and bonded with the joint frame interposed therebetween, and a coating layer coated with synthetic resin over the entire outer surface of the laminated buoyancy material board, ,
The joint frame is a frame to which a plurality of pipes 131-1 are connected, and has a flange 131-2 connected to the sub pier body at an end of the pipe 131-1,
The plurality of pipes (131-1) of the joint frame are connected to each other at the center of the plane of the buoyancy body, and the flange (131-2) is positioned to protrude to the outside of the edge of the buoyant board laminated and joined,
A pipe fitting pipe 115 having a flange 115-1 formed at its end is attached to the pipe of the sub pier body, and when the buoyancy body is located in the accommodation space of the sub pier main body, the flange 115 of the pipe fitting tube 115 -1) and the flange (131-2) of the joint frame is connected to each other, characterized in that the buoyancy body is connected sub-piers. delete delete delete The method of claim 1,
The synthetic resin is a floating pier connected to a buoyant body, characterized in that coated with a polyurethane coating agent.

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