AHN, Jang Hee (105-906, Kumho Apt. 492,Mochung-dong, Heungdeok-gu,Cheongju-cit, Chungcheongbuk-do 361-752, KR)
LEE, Sang Ki (110-502, Prugio Apt.Sannam-dong, Heungdeok-gu,Cheongju-cit, Chungcheongbuk-do 361-160, KR)
KIM, Ki Jin (201 Jaewoo Villa, 1023Bongmyeong-dong, Heungdeok-gu,Cheongju-cit, Chungcheongbuk-do 330-931, KR)
AHN, Jang Hee (105-906, Kumho Apt. 492,Mochung-dong, Heungdeok-gu,Cheongju-cit, Chungcheongbuk-do 361-752, KR)
LEE, Sang Ki (110-502, Prugio Apt.Sannam-dong, Heungdeok-gu,Cheongju-cit, Chungcheongbuk-do 361-160, KR)
Claims
[1] A member for remodeling a concrete water tank, the member comprising: a plurality of plate bodies that are provided adjacent to one another so as to cover an inner surface of a concrete water tank; a plurality of fasteners that fix the plate bodies to the inner surface of the concrete water tank; and sealants that are provided to seal gaps between the plate bodies. [2] The member of claim 1, wherein a plurality of fixing holes are formed in each of the plate bodies at predetermined intervals, and a fixing groove is formed around each of the fixing holes, and each of the fasteners includes a fixing anchor that has a female threaded hole and is inserted and fixed to the concrete water tank through each fixing hole of each plate body, a bolt of which a male threaded shaft is fastened to the female threaded hole of the fixing anchor, a cap that is fitted into each fixing groove of each plate body and covers a head of the bolt, and a sealing member that is provided between each fixing groove of each plate body and the cap. [3] The member of claim 2, wherein the cap is made of a synthetic resin, and has a cylindrical shape of which one side is opened, a lid is detachably provided to the one opened side of the cap, and a through hole through which the male threaded shaft of the bolt passes is formed on the other side of the cap. [4] The member of claim 1, wherein chamfers are formed at edges of the plate bodies, so that V-shaped sealing grooves are formed between the edges of adjacent plate bodies. [5] The member of claim 1, wherein edges of plate bodies are formed in a stepped shape, so that sealing grooves are formed between the edges of adjacent plate bodies. [6] The member of claim 4 or 5, wherein each of the sealants is compressed in the sealing groove. [7] The member of claim 1, wherein each of the sealants is made of silicon or butyl rubber. [8] The member of claim 1, wherein plate body connecting parts, which are engaged with each other in a stepped shape or a T- shape, are formed at the edges of adjacent plate bodies, and each of the sealants is compressed between the plate body connecting parts. [9] The member of claim 1, further comprising sealant covers that cover the sealants from above. [10] The member of claim 9, wherein each of the sealant covers includes: a body that is formed of a synthetic resin film, is formed in the shape of a strap along the edges of the plate body so as to cover the sealant, and includes a coating layer on one surface thereof; and an adhesive layer that is applied on the coating layer and attaches the body to the sealant and the plate body. [11] The member of claim 1 , wherein: edges of plate bodies are formed in a stepped shape, so that sealing grooves are formed between the edges of adjacent plate bodies; each of the sealants is made of butyl rubber or silicon and is provided in the sealing grooves; and sealant covers are inserted into the sealing grooves so as to close and seal the sealing grooves and so as to cover the sealants. [12] The member of claim 11, wherein each of the sealant covers is formed in the shape of a stick and has an angled U shape in cross-section. [13] The member of claim 1, wherein each of the plate bodies includes a plurality of protrusions, which prevent slip, on one surface thereof at predetermined intervals. [14] The member of claim 1, further comprising auxiliary sealants that are provided between the concrete water tank and the plate bodies and that attach the plate bodies to the concrete water tank. [15] A method of remodeling a concrete water tank, the method comprising: forming anchor holes in a concrete water tank through fixing holes after plate bodies including fixing holes are positioned close to an inner surface of a concrete water tank; fixing the plate bodies to the inner surface of the concrete water tank by fastening a male threaded shaft of a bolt, on which a sealing member is provided, to a female threaded hole of each fixing anchor after a fixing anchor having a female threaded hole is inserted and fixed to each of the anchor holes; performing sealing by compressing sealants between the plate bodies; and fixing sealant covers along edges of the plate bodies so as to cover the sealants. [16] The method of claim 15, wherein each of the sealants is made of butyl rubber or silicon. [17] The method of claim 15, further comprising attaching auxiliary sealants to the inner surface of the concrete water tank or the plate bodies before the forming of the anchor holes. [18] The method of claim 15, wherein a fixing groove is formed around each of the fixing holes of the plate bodies, and a cap is fitted into each of the fixing grooves of the plate bodies so as to cover a head of each bolt. |
Description
MEMBER AND METHOD FOR REMODELING CONCRETE
WATER TANK
Technical Field
[1] The present invention relates to a member and a method for remodeling a concrete water tank. More particularly, the present invention relates to a member and a method for remodeling a concrete water tank of which plate bodies cover an inner surface of a concrete water tank and are reliably fixed to the inner surface of the concrete water tank, thereby simply performing sealing and making a good appearance. Background Art
[2] In general, a water tank is widely used to store a large amount of water in an apartment, a school, a building, a factory, and the like.
[3] The water tank is formed of concrete slabs or a synthetic resin so as to have a cylindrical shape. Various water tanks, which are formed by connecting a plurality of panels in a cylindrical shape, have been developed in recent years.
[4] Among the above-mentioned various water tanks, a concrete water tank has the following problems. If the concrete water tank is used for a long time, water leakage occurs due to cracks, or harmful ingredients are generated due to corrosion so that water becomes contaminated.
[5] In particular, a coating agent is applied on the inner surface of the concrete water tank in order to form a film. In this case, an epoxy resin is used as the coating agent. If the epoxy resin is imperfectly hardened, endocrine disrupters are generated. Accordingly, when a person drinks water stored in the tank or water stored in the tank comes in contact with skins, a human body may be affected by the endocrine disrupters.
[6] Further, the durability of the film easily deteriorates so that separation of the film frequently occurs. For this reason, periodic maintenance needs to be performed to reform a film.
[7] Accordingly, there are problems in that periodic maintenance is troublesome and a large maintenance cost is required in the long term. Therefore, radical countermeasures are required to solve these problems.
[8] In order to solve the above-mentioned problems, there has been proposed a remodeling method that connects a plurality of panels to one another by using bolts so as to cover the inner surface of a concrete water tank. However, the remodeling method has the following problems. That is, construction is not easy. Since flanges that are formed in the panels in order to connect the panels to one another by using bolts
protrude inward the water tank, foreign materials easily remain in the tank, and it is difficult to remove the foreign substances when cleaning the tank.
[9] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Disclosure of Invention Technical Problem
[10] The present invention has been made in an effort to provide a member and a method for remodeling a concrete water tank of which plate bodies are reliably fixed to an inner surface of a concrete water tank by using fasteners, and sealants are used to simply seal and cover gaps between the plate bodies for the purpose of excellent sealing performance. Technical Solution
[11] An exemplary embodiment of the present invention provides a member for remodeling a concrete water tank. The member includes a plurality of plate bodies that are provided adjacent to one another so as to cover an inner surface of a concrete water tank, a plurality of fasteners that fix the plate bodies to the inner surface of the concrete water tank, and sealants that are provided to seal gaps between the plate bodies.
[12] A plurality of fixing holes that are used to fix the plate bodies by using the fasteners may be formed in each of the plate bodies at predetermined intervals, and a fixing groove may be formed around each of the fixing holes.
[13] Chamfers may be formed at edges of the plate bodies, so that V-shaped sealing grooves in which sealants are compressed may be formed between the edges of adjacent plate bodies.
[14] Further, the edges of plate bodies may be formed in a stepped shape, so that sealing grooves may be formed between the edges of adjacent plate bodies.
[15] The sealant may be compressed in each of the sealing grooves.
[16] Plate body connecting parts, which are engaged with each other in a stepped shape or a T-shape, may be formed at the edges of adjacent plate bodies.
[17] Each of the sealants may be compressed between the plate body connecting parts.
[18] Each of the fasteners may include a fixing anchor that has a female threaded hole and is inserted and fixed to the concrete water tank through each fixing hole of each plate body, a bolt of which a male threaded shaft is fastened to the female threaded hole of the fixing anchor, a cap that is fitted into each fixing groove of each plate body and covers a head of the bolt, and a sealing member that is provided between each fixing groove of each plate body and the cap.
[19] The cap may be made of a synthetic resin, and has a cylindrical shape of which one side is opened. A through hole through which the male threaded shaft of the bolt passes may be formed on the other side of the cap.
[20] A lid, which closes and seals the opened one side of the cap, may be provided to the cap.
[21] Each of the sealants may be made of silicon or butyl rubber.
[22] The member may further include auxiliary sealants that are provided between the concrete water tank and the plate bodies. The member may further include sealant covers that cover the sealants from above.
[23] Each of the auxiliary sealants may be formed of an adhesive, a double-sided tape, butyl rubber, silicon, or the like.
[24] Each of the sealant covers may include a body and an adhesive layer. The body is formed of a synthetic resin film, is formed in the shape of a strap, and includes a coating layer on one surface thereof. The adhesive layer is applied on the coating layer and attaches the body to the sealant and the plate body.
[25] Edges of plate bodies may be formed in a stepped shape, so that sealing grooves in which the sealants are provided are formed between the edges of adjacent plate bodies. Sealant covers may be inserted into the sealing grooves so as to close and seal the sealing grooves and so as to cover the sealants.
[26] Each of the sealant covers may be formed in the shape of a stick, and each has an angled U-shaped cross section.
[27] Another embodiment of the present invention provides a method of remodeling a concrete water tank. The method includes forming anchor holes in a concrete water tank through fixing holes after plate bodies including fixing holes are positioned close to an inner surface of the concrete water tank; fixing the plate bodies to the inner surface of the concrete water tank by fastening a male threaded shaft of a bolt, on which a sealing member is provided, to a female threaded hole of each fixing anchor after a fixing anchor having a female threaded hole is inserted and fixed to each of the anchor holes; and performing sealing by compressing sealants between the plate bodies.
[28] Further, the method may further include fixing sealant covers along edges of the plate bodies so as to cover the sealants.
[29] The method may further include attaching auxiliary sealants to the inner surface of the concrete water tank or the plate bodies before the forming of the anchor holes.
Advantageous Effects
[30] According to the member and the method for remodeling a concrete water tank of the present invention, the plate bodies are reliably and simply fixed to concrete slabs by
using the fasteners. Therefore, the plate bodies do not come off or are not separated from the inner surface of the concrete water tank, so that a long lifespan is maintained. Further, since the cap is provided to cover the head of each of the bolts of the fasteners and the sealing member is provided between the cap and the plate body, it is possible to prevent water from leaking between the fixing holes of the plate bodies and the bolts.
[31] According to the member and the method for remodeling a concrete water tank of the present invention, the chamfers are formed as slopes at the edges of the plate bodies, so that the V-shaped sealing grooves in which the sealants are provided are formed between the edges of adjacent plate bodies. Therefore, sealing is easily performed and reliably maintained. Since each of the sealing members is made of silicon rubber or butyl rubber that is harmless to a human body, water contamination is not caused and sealing is reliably maintained. Further, since the sealant cover is provided above each of the sealants, the sealants are not exposed to the outside, which causes a good appearance.
[32] According to the member and the method for remodeling a concrete water tank of the present invention, the edges of the plate bodies are fitted to one another by the plate body connecting parts. Therefore, the plate bodies are reliably connected to one another and a contact area between the sealant and the plate body is increased. As a result, sealing is reliably maintained between the plate bodies. The protrusions are formed on the plate body in order to prevent a worker from slipping. Therefore, a concern that a worker may slip in a water tank during the cleaning or maintenance of the water tank is decreased. As a result, the danger of accidents is reduced. Brief Description of the Drawings
[33] FIG. 1 is a perspective view of a member for remodeling a concrete water tank according to a first exemplary embodiment of the present invention.
[34] FIG. 2 is a cross-sectional view of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[35] FIG. 3 is a partially enlarged cross-sectional view of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[36] FIG. 4 is a perspective view of a plate body of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[37] FIG. 5 is a cross-sectional view of the plate body of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[38] FIG. 6 is an exploded perspective view of a fastener of the member for remodeling a
concrete water tank according to the first exemplary embodiment of the present invention.
[39] FIG. 7 is an assembled cross-sectional view of the fastener of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[40] FIG. 8 is an enlarged cross-sectional view of an area B of FIG. 3 that shows a sealant of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[41] FIG. 9 is an enlarged cross-sectional view showing that the sealant is formed in a sealing groove and between the plate bodies of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[42] FIG. 10 is an enlarged cross-sectional view showing that the sealant is formed between the plate bodies of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[43] FIG. 11 is a perspective view showing that pipes pass through the plate bodies of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[44] FIG. 12 is a cross-sectional view showing that pipes pass through the plate bodies of the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention.
[45] FIG. 13 is a partially enlarged cross-sectional view of a member for remodeling a concrete water tank according to a second exemplary embodiment of the present invention.
[46] FIG. 14 is a cross-sectional view of a member for remodeling a concrete water tank according to a third exemplary embodiment of the present invention.
[47] FIG. 15 is a cross-sectional view showing that an auxiliary sealant is formed in different patterns in the member for remodeling a concrete water tank according to the third exemplary embodiment of the present invention.
[48] FIG. 16 is a cross-sectional view showing that L-shaped plate body connecting parts of a member for remodeling a concrete water tank according to a fourth exemplary embodiment of the present invention are separated from each other.
[49] FIG. 17 is a cross-sectional view showing that the L-shaped plate body connecting parts of the member for remodeling a concrete water tank according to the fourth exemplary embodiment of the present invention are assembled with each other.
[50] FIG. 18 is a cross-sectional view showing that T-shaped plate body connecting parts of a member for remodeling a concrete water tank according to a fourth exemplary embodiment of the present invention are separated from each other.
[51] FIG. 19 is a cross-sectional view showing that T-shaped plate body connecting parts
of a member for remodeling a concrete water tank according to a fourth exemplary embodiment of the present invention are assembled with each other.
[52] FIG. 20 is a partially enlarged and exploded cross-sectional view of a member for remodeling a concrete water tank according to a fifth exemplary embodiment of the present invention.
[53] FIG. 21 is a partially enlarged and assembled cross-sectional view of a member for remodeling a concrete water tank according to a fifth exemplary embodiment of the present invention.
[54] FIG. 22 is a block diagram illustrating a method of remodeling a concrete water tank according to a sixth exemplary embodiment of the present invention.
[55] FIG. 23 is a cross-sectional view illustrating the method of remodeling a concrete water tank according to the sixth exemplary embodiment of the present invention.
[56] FIG. 24 is a cross-sectional view illustrating a process of fixing a plate body in the method of remodeling a concrete water tank according to the sixth exemplary embodiment of the present invention.
[57] FIG. 25 is a block diagram illustrating a method of remodeling a concrete water tank according to a seventh exemplary embodiment of the present invention.
[58] FIG. 26 is a cross-sectional view illustrating the method of remodeling a concrete water tank according to the seventh exemplary embodiment of the present invention.
[59] FIG. 27 is a block diagram illustrating a method of remodeling a concrete water tank according to an eighth exemplary embodiment of the present invention.
[60] FIG. 28 is a cross-sectional view illustrating the method of remodeling a concrete water tank according to the eighth exemplary embodiment of the present invention. Best Mode for Carrying Out the Invention
[61] Members and methods for remodeling a concrete water tank according to preferred exemplary embodiments of the present invention will be described in detail below with reference to drawings.
[62] As shown in FIGS. 1 and 3, a member for remodeling a concrete water tank according to a first exemplary embodiment of the present invention includes a plurality of plate bodies 10 that are provided adjacent to one another so as to cover the inner surface of a concrete water tank 2, fasteners 20 that fix the plate bodies 10 to the inner surface of the concrete water tank 2, and sealants 40 that are provided to seal gaps between the plate bodies 10.
[63] Each of the plate bodies 10 is made of a material that has high strength and excellent corrosion resistance against water, and is formed in the shape of a quadrangular plate.
[64] The plate bodies 10 are made of an SMC (sheet molding compound), and may be made of materials such as synthetic resins or stainless steel having excellent strength
and corrosion resistance. [65] As shown in FIGS. 4 and 5, a plurality of fixing holes 13 are formed in each of the plate bodies 10 at predetermined intervals, and a fixing groove 12 is formed around each of the fixing holes 13. [66] The fixing holes 13 and the fixing grooves 12 may be formed at four corners of the plate body 10, and may be formed at other positions depending on the shape, size, and strength of the plate body 10 and the conditions of the inner surface of the concrete water tank.
[67] Chamfers 14 may be formed at edges of the plate body 10.
[68] That is, the chamfers 14 may be formed as slopes near where one surface (upper surface) of the plate body 10 and the side surface thereof intersect. [69] A plurality of protrusions 16 may be formed at predetermined intervals on one surface (upper surface) of the plate body 10. [70] If the protrusions 16 are formed on the plate body 10, slipping of a worker is prevented during the cleaning or maintenance of a water tank. For this reason, there is a merit that it is possible to prevent accidents from occurring. [71] As shown in FIGS. 6 and 7, each of the fasteners 20 includes a fixing anchor 21, a bolt 23, a cap 27, and a sealing member 30. The fixing anchor 21 has a female threaded hole 22, and is inserted and fixed to the concrete water tank 2 through each fixing hole
13 of each plate body 10. A male threaded shaft 25 of the bolt 23 is fastened to the female threaded hole 22 of the fixing anchor 21. The cap 27 is fitted into each fixing groove 12 of each plate body 10, and covers a head 24 of the bolt 23. The sealing member 30 is provided between each fixing groove 12 of each plate body 10 and the cap 27. [72] The fixing anchor 21 is composed of a strong anchor or the like. After one end of the fixing anchor is inserted into a hole that is formed in the inner surface of the concrete water tank 2 by using a drill, the fixing anchor is inserted into the hole by using a punch, a hammer, and the like. [73] Various anchors that are widely used to fasten bolts to concrete slabs, other than the strong anchors, may be used as the fixing anchor 21. [74] The head 24 is formed at one end of the bolt 23, and the male threaded shaft 25 protrudes from one side of the head 24. [75] For example, a fastening bolt such as a hexagonal-headed bolt, a through-bolt, or a screw, which are commonly used, may be used as the bolt 23. [76] The fixing anchor 21 and the bolt 23 may have the same structure as a set anchor bolt that is commonly used. [77] The cap 27 is made of a synthetic resin, and has a cylindrical shape of which one side is opened. A through hole 28 through which the male threaded shaft 25 of the bolt 23
passes is formed on the other side of the cap.
[78] A lid 29, which closes and seals the one opened side of the cap, may be provided to the cap 27.
[79] The sealing member 30 is made of butyl rubber or silicon, is provided around the fixing hole 13 of the plate body 10, and has a ring shape.
[80] If the sealing member 30 is made of butyl rubber, there are merits that water contamination is minimized and ingredients that are harmful to a human body are not present. Further, the sealing member is provided around the fixing hole 13 of the plate body 10. Therefore, while being compressed between the bottom of the fixing groove 12 of the plate body 10 and the other side of the cap 27 of the fastener 20, the sealing member seals a gap between the plate body 10 and the fastener 10. As a result, there is a merit that the sealing property is improved.
[81] When the sealing member 30 is made of silicon, a product that is harmless to a human body is used as the sealing member.
[82] The sealant 40 may be made of a material that is commonly used for sealing, such as a synthetic resin or urethane, other than butyl rubber or silicon.
[83] One or more washers 26, which come in contact with the head 24, may be provided on the male threaded shaft 25 of the bolt 23. Although not shown in the drawings, a washer-faced bolt where the head 24 is integrally formed with a washer may be used as the bolt 23.
[84] The sealant 40 is made of butyl rubber, silicon, or the like.
[85] As shown in FIG. 8, the sealant 40 is provided in a sealing groove that is formed by the chamfers 14 of adjacent plate bodies 10 so as to have a V shape.
[86] The sealant 40 is also provided at an edge of the plate bodies 10 that vertically intersect, and at a corner between the plate bodies 10 of the concrete water tank 2.
[87] Since the sealant 40 is provided in the V-shaped sealing groove formed by the chamfers 14, a gap is not formed between the plate bodies 10. As a result, there are merits that the amount of the sealant 40 to be used is reduced and sealing is reliably maintained.
[88] Further, the sealants 40 are easily provided between the plate bodies 10 that are provided at corners between the bottom and the side walls of the concrete water tank 2, at corners between the side walls thereof, and at corners between the side surfaces and the ceiling thereof. Therefore, sealing is reliably maintained.
[89] Each of the sealing grooves has had a V shape of the above description. However, the chamfers 14 of the plate body 10 may be formed so that each of the sealing grooves has one of various shapes such as a semicircular shape, a U shape, a semi-elliptical shape, or an angled U shape.
[90] The sealant 40 is provided in the sealing groove in the above description. However,
the present invention is not limited thereto, and the sealant 40 may be provided between portions without chamfers 14 of the plate bodies 10 and in the sealing groove as shown in FIG. 9.
[91] Further, the chamfers 14 are formed at the edges of the plate bodies 10 in the above description. However, the present invention is not limited thereto, and the chamfers 14 may not be formed at the edges of the plate bodies 10.
[92] If the chamfers 14 are not formed at the edges of the plate bodies 10, the sealant 40 may be provided between the edges of the plate bodies 10.
[93] In the member for remodeling a concrete water tank according to the first exemplary embodiment of the present invention, if pipes 4 protrude from the inner surface of the concrete water tank 2 as shown in FIGS. 11 and 12, holes through which the pipes 4 pass are formed in the plate bodies 10, the fixing groove 12 and the fixing hole 13 are further formed at a position corresponding to each of the pipes 4, and the plate bodies 10 are fixed to the inner surface of the concrete water tank 2 by using the fasteners 20.
[94] A member for remodeling a concrete water tank according to a second exemplary embodiment of the present invention may further include sealant covers 50 that are attached to the edges of the plate bodies 10 so as to cover the sealants 40.
[95] As shown in FIG. 13, each of the sealant covers 50 includes a body 52, a coating layer 54, and an adhesive layer 56. The body 52 is formed of a synthetic resin film, and is formed in the shape of a strap. The coating layer 54 is coated on one surface of the body 52, and the adhesive layer 56 is applied on the coating layer 54 and attaches the body 52 to the sealant 40.
[96] The body 52 is made of a material such as PET (polyethylene terephthalate), and completely covers the sealant 40 so that the sealant 40 is not exposed to the outside.
[97] The coating layer 54 is formed by coating (for example, laminating) an aluminum material on the body 52 at a small thickness.
[98] The adhesive layer 56 is made of butyl rubber or the like.
[99] Since the second exemplary embodiment may have the same structures as the first exemplary embodiment except for the above-mentioned structure, the detailed description thereof will be omitted.
[100] As shown in FIG. 14, a member for remodeling a concrete water tank according to a third exemplary embodiment of the present invention may further include auxiliary sealants 60 that are provided between the inner surface of the concrete water tank 2 and the plate bodies 10.
[101] The auxiliary sealants 60 are provided so as to prevent water from leaking between the inner surface of the concrete water tank 2 and the plate bodies 10.
[102] For example, each of the auxiliary sealants 60 is made of rubber, and both surfaces of the auxiliary sealant are attached and fixed to the concrete water tank 2 and the plate
body 10, respectively.
[103] Each of the auxiliary sealants 60 may be made of butyl rubber. Each of the auxiliary sealants may be formed along the edge of the plate body 10 facing the inner surface of the concrete water tank 2 so as to have a ring shape. Alternatively, each of the auxiliary sealants may be divided into several pieces so as to be arranged at predetermined intervals.
[104] As shown in FIG. 15, each of the auxiliary sealants 60 may be formed in the shape of a plate so as to be disposed between the concrete water tank 2 and the plate bodies 10.
[105] Although not shown in the drawings, adhesives may be applied on both surfaces of each auxiliary sealant 60.
[106] Since the third exemplary embodiment may have the same structures as the first and/ or second exemplary embodiments except for the above-mentioned structure, the detailed description thereof will be omitted.
[107] As shown in FIGS. 16 and 17, a member for remodeling a concrete water tank according to a fourth exemplary embodiment of the present invention includes plate body connecting parts 18 that are formed at edges of adjacent plate bodies 10. Furthermore, the sealant 40 may be compressed between the plate body connecting parts 18.
[108] The plate body connecting parts 18 may be formed so that the edges of adjacent plate bodies 10 are engaged with each other in a stepped shape.
[109] That is, a pair of steps 18a and 18b may be formed at the edges of the plate bodies 10 so as to correspond to each other.
[110] Further, as shown in FIGS. 18 and 19, the plate body connecting part 19 may be formed so that the edges of the adjacent plate bodies 10 are engaged with each other in a T-shape.
[I l l] That is, a fitting groove 19a and a fitting protrusion 19b may be formed at the edges of the plate bodies 10 so as to correspond to each other.
[112] Since the fourth exemplary embodiment may have the same structures as the first to third exemplary embodiments except for the above-mentioned structure, the detailed description thereof will be omitted.
[113] Meanwhile, as shown in FIGS. 20 and 21, in a member for remodeling a concrete water tank according to a fifth exemplary embodiment of the present invention, edges of plate bodies 10 are formed in a stepped shape. Accordingly, sealing grooves 11 in which sealants 40 are provided are formed between the edges of adjacent plate bodies 10. Sealant covers 50a may be inserted into the sealing grooves 11 so as to close and seal the sealing grooves 11 and so as to cover the sealants 40.
[114] The sealant cover 50a may be formed of a stick that has an angled U shape in cross- section.
[115] The sealant cover 50a is made of a material that has excellent strength, corrosion resistance, and elasticity (for example, a synthetic resin, stainless steel, aluminum, copper, or the like).
[116] Since the fifth exemplary embodiment may have the same structures as the first to fourth exemplary embodiments except for the above-mentioned structure, the detailed description thereof will be omitted.
[117] Further, as shown in FIGS. 22 and 23, a method of remodeling a concrete water tank according to a sixth exemplary embodiment of the present invention includes a punching step PlO, a plate body fixing step P30, and a sealing step P40. In the punching step, anchor holes 3 are formed in the concrete water tank 2. In the plate body fixing step, a fixing anchor 21 having a female threaded hole 22 is inserted and fixed to each of the anchor holes 3, a male threaded shaft 25 of a bolt 23 on which a sealing member 30 is provided is fastened to the female threaded hole 22 of each fixing anchor 21 so that the plate bodies 10 are fixed to the inner surface of the concrete water tank 2. In the sealing step, a sealant 40 is compressed between the plate bodies 10 so as to perform sealing.
[118] In the punching step PlO, after the plate bodies 10 where a fixing groove 12 is formed around each fixing hole 13 are positioned close to the inner surface of the concrete water tank 2, a drill passes through each fixing hole 13 in order to form the anchor holes 3 in the concrete water tank 2.
[119] In the plate body fixing step P30, as shown in FIG. 24, the fixing anchor 21 is inserted and fixed to each of the anchor holes 3 by using a punch, a hammer, and the like.
[120] That is, after the end of the fixing anchor 21 is inserted into the each of the anchor holes 3, a punch is positioned at the other end of the fixing anchor 21 and is then struck by a hammer.
[121] In the plate body fixing step P30, a cap 27 may be fitted into each of the fixing grooves 12 of the plate bodies 10 so as to cover the head 24 of each of the bolts 23.
[122] In the sealing step P40, the sealant 40, which is made of butyl rubber and has a thin and long cylindrical shape, is provided between the plate bodies 10 and/or in the sealing groove. Then, the sealant is compressed by hand, so that a gap between the plate bodies 10 is sealed.
[123] In the sealing step P40, silicon may be discharged from a container in which silicon is stored by using a caulking gun and the like so that silicon is compressed between the plate bodies 10 and/or in the sealing groove.
[124] Since each of the plate bodies 10, the fixing anchors 21, the bolts 23, the caps 27, the sealing members 30, and the sealants 40 may have the same structures as the member for remodeling a concrete water tank according to the exemplary embodiments of the
present invention, the detailed description thereof will be omitted.
[125] As shown in FIGS. 25 and 26, a method of remodeling a concrete water tank according to a seventh exemplary embodiment of the present invention may further include a sealant covering step that provides sealant covers 50 along edges of the plate bodies 10 so as to cover the sealants 40.
[126] In the sealant covering step P50, each of the sealant covers 50 is provided to completely cover the sealants 40 so that the sealants 40 are not exposed to the outside.
[127] Since each of the sealant covers 50 may have the same structure as that of the member for remodeling a concrete water tank according to the exemplary embodiments of the present invention, the detailed description thereof will be omitted.
[128] Since the seventh exemplary embodiment may be the same as the sixth exemplary embodiment except for the above-mentioned structure, the detailed description thereof will be omitted.
[129] As shown in FIGS. 27 and 28, a method of remodeling a concrete water tank according to an eighth exemplary embodiment of the present invention may further include an auxiliary sealing step P6, which attaches the auxiliary sealants 60 to the inner surface of the concrete water tank 2 or the plate bodies 10, before the punching step PlO.
[130] Since the eighth exemplary embodiment may be the same as the sixth and/or seventh exemplary embodiments except for the above-mentioned structure, the detailed description thereof will be omitted.
[131] While the members and methods for remodeling a concrete water tank according to the exemplary embodiments of the present invention have been described above, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.