KR100804125B1 - Connecting apparatus for precast concrete members, and fabricated bridge pier using the apparatus, and constructing method thereof - Google Patents

Abstract

A connecting apparatus of precast concrete members is provided to connect precast concrete members strongly and simply, and a prefabricated pier structure is provided to be assembled strongly and simply and to be installed in a job site by having a connecting apparatus of precast concrete members. A connecting apparatus(1) of precast concrete members comprises a coupling flange formed in the shape of a horizontal hollow disk and provided with plural fastening holes to couple with another connecting apparatus, a first vertical member formed in the shape of a cylinder and attached perpendicular to the coupling flange, and a second vertical member formed in the shape of a cylinder, located in the first vertical member and attached perpendicular to the coupling flange, wherein a vertical reinforcement rib is placed on the outside of the first vertical member for reinforcement and an end of a vertical reinforcing bar of a reinforcement cage placed in a pier is coupled with the second vertical member integrally. A prefabricated pier structure comprises a precast concrete pier(10), a coping(20) and a foundation(30), wherein a reinforcement cage(11) is placed in the pier, the coping and the foundation, and the connecting apparatus of precast concrete members is installed to the coping and the foundation for connecting the pier and the foundation.

Description

Connecting Apparatus for Precast Concrete Members, and Fabricated Bridge Pier using the Apparatus, and Constructing Method

1 is a schematic perspective view of the connection device according to the present invention used in connection with the precast concrete member in a partially cut form.

2 (a), 2 (b) and 2 (c) are diagrams for showing that the connection device according to the present invention is provided at the pier part of the pier structure as one example of the precast concrete member.

FIG. 3 is an enlarged view of a circle A portion shown in FIG. 2B.

4 is a schematic perspective view of a pier structure formed by assembling a precast concrete pier according to the present invention, a coping portion and a foundation having a connecting device.

Figure 5 is a view for explaining the connection method of the connecting device provided in the precast concrete member (a) is an exploded perspective view showing a state before the coupling of both sides, (b) after the coupling of both sides It is an assembled perspective view showing the state.

6 is a schematic perspective view showing a modified embodiment of the connecting device according to the present invention.

7 is a schematic perspective view of a pier structure formed by assembling a precast concrete pier part with a pile foundation member according to the present invention.

8 is a view showing a coupling structure of a coupling device provided in the tip portion of the pile foundation member and the coupling device provided in the lower end of the piers, (a) is an enlarged view showing in detail the portion of the coupling device and the coupling device is coupled; (B) is a view showing a state in which the pile connection device and the connection device is coupled.

FIG. 9 is a view corresponding to FIG. 8, in which the diameter of the pile foundation member is substantially the same as the diameter of the pier, (a) is an enlarged view showing in detail a portion in which the pile connecting device and the connecting device are coupled; b) is a view showing a state in which the pile connection device and the connection device is coupled.

Explanation of symbols on the main parts of the drawings

1: connecting device 2: coupling flange

3: first vertical portion 4: second vertical portion

10: pier 20: coping

30: foundation

The present invention relates to a connection device for a precast concrete member, a prefabricated bridge structure using the same, and a construction method thereof. Specifically, the precast concrete is assembled at the connection end of the precast concrete member and integrated with the concrete member. The present invention relates to a connecting device that can be firmly connected to a member, to a pier structure in which the pier is rigidly and easily assembled with the coping part and the base part, and a method of constructing the pier structure.

In order to shorten the air and improve construction quality, recent attempts to construct a structure prefabricated using precast concrete members have been increasing. For example, the bridge structure of the bridge is divided into a pier part, a coping part, and a foundation part, and the pier part and the coping part are prefabricated as precast concrete members, and the pier part and the coping part are integrally combined in the field to form the whole pier structure. The technique to construct is proposed.

In such a prefabricated structure, one of the important points is that the precast concrete members are firmly and simply integrated together with each other.

An object of the present invention is to provide a connection device that allows each precast concrete member to be firmly and easily integrated in a precast concrete member is assembled to form a structure as described above.

In another aspect, the present invention is to provide a prefabricated bridge structure that can be installed in the field with a solid and easy assembly with the above connection device.

In order to achieve the above object, in the present invention, the precast concrete member is provided as a connecting device for coupling the precast concrete members integrally with each other, made of a horizontal hollow disk, for fastening with other connecting devices A coupling flange having a plurality of fastening holes formed therein; A first vertical member having a cylindrical shape and integrally attached to the coupling flange vertically; A second vertical member having a cylindrical shape and positioned inside the first vertical member and integrally attached to the coupling flange vertically; The second vertical member is coupled to the end of the reinforcing bar provided in the precast concrete member, the connection device is provided for the integral coupling of the precast concrete member, characterized in that the connecting device is provided integrally with the precast concrete member do.

In the connection device of the present invention, the second vertical member may be formed with a coupling hole to which the end of the reinforcing bar can be coupled, and a vertical reinforcement rib may be further provided outside the first vertical member.

In addition, in the connecting device of the present invention, a rib is installed inside the second vertical member, and the reinforcing reinforcing bar further added to the precast concrete member may be coupled to the rib.

In the present invention, there is provided a precast concrete member provided with such a connecting device so as to be integrally coupled with a neighboring precast concrete member. In this case, the reinforcing rebar disposed in the precast concrete member has an end thereof connected to the precast concrete member. By engaging with the second vertical member of the device, the connecting device is provided integrally with the precast concrete member.

In addition, in the present invention, as an example of such a precast concrete member, there is provided a prefabricated pier structure consisting of a pier, a coping and a foundation, the pier is made of a precast concrete member; The connecting device is installed at both ends of the pier, and the end of the vertical reinforcing bars of the reinforcing bar disposed in the pier is engaged with the second vertical member of the connecting device, whereby the connecting device is integrally formed with the pier. Provided; In the coping portion, the connection device is provided at a position to be coupled with the pier portion; An end portion of the vertical rebar of the rebar network disposed in the coping portion is engaged with the second vertical member of the connecting device so that the connecting device is integrally provided with the coping portion; The piercing part and the coping part have a structure in which the piercing part and the coping part are integrally assembled by inserting the vertical fastening member through the fastening hole in the state where the connecting device is in contact with each other.

On the other hand, in such a pier structure, the foundation is composed of a concrete foundation, the foundation portion, the connection device is installed in a position to be coupled with the pier, the pier and the base portion integrally assembled in the same configuration as the pier Can build structures.

On the other hand, in the bridge structure according to the present invention, the foundation may be composed of a pile foundation member, in this case, made of a horizontal hollow disk form and a plurality of fastening holes for fastening with the connection device of the pier is formed A coupling flange having a cylindrical shape, a second vertical member having a cylindrical shape and integrally attached to the coupling flange vertically, and a vertical fastening member having an end projecting upward through the coupling flange. A pile connection device configured to include is installed at an upper end of the pile foundation member; An end portion of the vertical rebar of the reinforcing bar network disposed in the pile foundation member is coupled to the second vertical member so that the pile connecting device is integrally provided with the pile foundation member; When the pier is coupled to the upper end of the pile foundation member, a vertical fastening member is inserted through and fastened to the fastening hole of the connecting device in a state in which the connecting device of the pier is in contact with the pile connecting device. The pile foundation member will have a structure that is integrally assembled.

In addition, in the present invention, as a method for constructing a pier structure by integrally assembling the pier, coping and foundation, both ends of the pier is formed in the form of a horizontal hollow disk and a plurality of fasteners for fastening with other connecting device A coupling flange having a fastening hole formed therein, and a first vertical member having a cylindrical shape and integrally attached to the coupling flange vertically, and having a cylindrical shape and positioned inside the first vertical member and integrally attached to the coupling flange vertically. Installing a connecting device including a second vertical member, the end of the vertical reinforcing bars of the reinforcing bar disposed in the bridge portion is coupled to the second vertical member, the connection device is integrally provided with the bridge portion Fabricating the piers with precast concrete members; A coupling flange formed in a horizontal hollow disc shape and formed with a plurality of coupling holes for fastening with another connecting device at a position to be coupled with the pier in the coping part, and having a cylindrical shape and integrally perpendicular to the coupling flange The coping part is manufactured by installing a connecting device including a first vertical member to be attached and a second vertical member having a cylindrical shape and positioned inside the first vertical member to be integrally attached to the coupling flange. An end portion of the vertical rebar of the rebar network disposed in the coping portion is coupled to the second vertical member to produce a coping portion so that the connection device is integrally provided with the coping portion; Provides a method of constructing a prefabricated pier structure, characterized in that the pier part and the coping part is integrally assembled by inserting and fastening the vertical fastening member through the fastening hole in a state in which the connecting device of the pier part and the coping part face each other. do.

Hereinafter, with reference to the accompanying drawings, by explaining the configuration of the bridge structure as an embodiment of the present invention will be described in detail the configuration and effect of the present invention.

1 is a perspective view of a partially cut-out form of the connecting device 1 according to the present invention used for the coupling of the precast concrete member, Figure 2 is an example of the precast concrete member As shown in the drawings for showing that the pier 10 is provided in the pier structure. In FIG. 2, (a) shows the connecting device 1, (b) shows the shape in which the reinforcing bar 11 arranged in the pier 10 is coupled with the connecting device 1, (c ) Shows a shape in which the connecting device 1 is provided at both ends of the pier 10.

In the present invention, the precast concrete member is provided with a connecting device 1 integrally for assembling and coupling with other precast concrete members. As shown in FIG. 1, the connecting device 1 includes a coupling flange 2 formed in a horizontal hollow disc shape, and a first vertical member 3 that is formed in a cylindrical shape and integrally attached to the coupling flange 2. And a second vertical member 4 formed in a cylindrical shape and positioned inside the first vertical member 3 to be integrally attached to the joining flange 2 vertically. The coupling flange 2 is formed with a plurality of fastening holes 5 for fastening with the other connecting device (1).

On the other hand, as shown in the figure, for the reinforcement to the outside of the first vertical member 3 may be provided with a vertical reinforcing rib (6), as will be described later, the second vertical member (4) And additional vertical reinforcing ribs (not shown in FIG. 1) may be provided for coupling of other reinforcing bars.

In order for the connecting device 1 to be integrally installed in the precast concrete member, the rebar disposed inside the precast concrete member is coupled with the connecting device 1. That is, as shown in FIG. 2, when the precast concrete member is the pier 10 of the pier structure, the connecting device 1 is integrated at one or both ends of the pier 10 through the following structure. It is provided with.

3 shows an enlarged view of the circle A portion shown in FIG. 2 (b), as shown in the figure, the end of the vertical reinforcement 12 of the reinforcing bar 11 reinforcement to the pier 10. Is integrally coupled with the second vertical member 4. The end of the vertical reinforcing bar 12 may be attached to the second vertical member 4 by simply welding, but as shown in FIGS. 1 and 3, the coupling hole 7 in the second vertical member 4. It is also preferable to form a through, and to bend the end of the vertical reinforcing bar 12 so that the bent end is inserted into the coupling hole (7). A fastening means 13 such as a nut may be coupled to the bent end so that the bent end of the vertical rebar 12 inserted into the coupling hole 7 does not fall out. In the state in which the reinforcing bar 11 and the connecting device 1 are coupled by the combination of the vertical reinforcing bar 12 and the second vertical member 4, the concrete 14 so that the reinforcing bar 11 is embedded therein. When casting the precast concrete member is provided with a connecting device (1). That is, in the case of a pier structure, as shown in (c) of FIG. 2, the precast concrete pier 10 having the connection device 1 at both ends is manufactured.

4 is a precast concrete pier 10 manufactured in the above configuration, the pier structure 100 formed by assembling the coping unit 20 and the base portion 30 provided with the above-described connecting device (1) A schematic perspective view is shown. In Fig. 4, the reinforcing bar 10, the coping part 20, and the base part 30 are shown with dotted lines of the reinforcing bar 11 disposed therein.

As shown in FIG. 4, the connecting device 1 according to the present invention described above may be installed in the coping part 20 of the prefabricated pier structure, and the foundation for the connection of the pier 10 and the base 30 is provided. It may be installed in the unit 30. That is, when manufacturing the coping part 20 and the base part 30, the reinforcing bar 11 and the connecting device 1 in the state where the reinforcing bar 11 is coupled to the connecting device 1, the pier ( It is arranged in a position that is combined with 10) to be provided integrally to the coping portion 20 and the base portion 30, respectively.

FIG. 5 is a view for explaining a method of connecting both connecting devices 1 when the connecting devices 1 are respectively provided in the precast concrete members. FIG. 5 (a) shows both sides. 5 is an exploded perspective view showing a state before the connecting device 1 is coupled, and FIG. 5B is an assembled perspective view showing the state after the connecting device 1 is coupled to both sides.

As shown in the figure, the coupling device 1 on both sides of the coupling flange (2) is facing each other, through the vertical fastening member (18) such as bolts through the fastening hole (5) formed in the coupling flange (2) on both sides By inserting the fastening member 19, such as a nut at its end after insertion, the coupling flanges 2 of the connecting device 1 on both sides is firmly connected to each other integrally. In this way, the two connecting devices 1 are firmly integrated with each other, and thus the precast concrete members on both sides having the connecting device 1 integrally, that is, the pier 10 and the pier 10 in the embodiment shown in the drawing. Coping portion 20, or pier 10 and the base portion 30 is easily assembled integrally. Of course, the base portion 30 and the coping portion 20 need not necessarily be precast concrete members. That is, the base portion 30 and the coping portion 20 may be manufactured on-site by the site-pouring concrete.

6 shows a schematic perspective view of a variant embodiment of the connecting device 1 according to the invention. In the embodiment shown in FIG. 6, a rib 17 is provided inside the second vertical member 4, and an additional connecting reinforcing bar 50 is further coupled to the rib 17. In order to couple the connecting reinforcing bar 50 to the rib 17, in the embodiment shown in the figure to form a through hole in the rib 17 and the bent end of the connecting reinforcing bar 50 to the through hole It is configured to be caught. However, the connecting reinforcing bar 50 is not limited to the method of coupling to the rib 17, for example, may be connected to each other by a method such as welding the end of the connecting reinforcing bar 50 to the rib 17.

The connecting reinforcing bar 50 is a precast concrete member, that is, in the above-described embodiment, in addition to the reinforcing bar 11 arranged in the concrete of the pier 10, additionally embedded in concrete so that the connecting device 1 is concrete To be more firmly coupled to the member.

In particular, when the connecting reinforcing bar 50 is deformed to be bent as shown in the embodiment shown in Figure 6, when embedded in the concrete member, the resistance to the tensile force, etc. becomes larger, the connection device 1 and the precast concrete member The effect of making the bond between them stronger is exerted.

In the above described the embodiment in which the pier 10 is coupled to the foundation 30 made of cast-in-place concrete or precast concrete member, the pier 10 according to the present invention is such a foundation 30 In addition to) can be combined with the pile foundation member to build a pier structure, the following will be described the configuration coupled to the pile foundation member.

7 is a precast concrete pier 10 according to the present invention is a coping unit 20 having a connection device 1 described above, and the pile connection device 101 of the modified form of the connection device (1) A schematic perspective view of a pier structure formed by assembling with a pile foundation member 60 having a is shown. FIG. 8 is a view illustrating a coupling structure of the pile connecting device 101 provided at the front end of the pile foundation member 60 and the connecting device 1 provided at the lower end of the pier 10. (a) is an enlarged view showing in detail the portion of the pile connecting device 101 and the connecting device 1 in Figure 7, Figure 8 (b) is the pile connecting device 101 and the connecting device (1) The figure shows a combined state. FIG. 9 is a view corresponding to FIG. 8, wherein FIGS. 7 and 8 illustrate a case in which the diameter of the pile foundation member 60 is larger than that of the piers 10, whereas FIG. 9 is a pile foundation member 60. It is a figure when the diameter of is substantially the same as the diameter of the bridge part 10. FIG.

As shown in the figure, the pile connecting device 101 installed on the upper end of the pile foundation member 60 has a structure in which the first vertical member 3 is omitted from the connecting device 1 described above. That is, the pile connecting device 101, the coupling flange 102 formed in the form of a horizontal hollow disk, and a second vertical member 104 made of a cylindrical body integrally attached to the coupling flange 102 vertically It is composed. The coupling flange 102 is formed with a plurality of fastening holes 105 for fastening with the connecting device 1 of the pier 10. As shown in the figure, a vertical reinforcement rib 106 may be provided on the outside of the second vertical member 104 for reinforcement, and vertical reinforcement ribs 106 may also be provided on the inner surface of the second vertical member 104. ) May be provided.

When the pile connecting device 101 is installed on the top of the pile foundation member 60, so as to be integrally coupled with the pile foundation member 60, as shown in the drawing, the reinforcing bar reinforced to the pile foundation member 60. An end portion of the vertical reinforcing bar 62 of 61 is integrally coupled with the second vertical member 104. Although the end of the vertical reinforcing bar 62 may be attached to the second vertical member 104 simply by welding, as shown in FIGS. 7 to 9, the coupling hole 107 to the second vertical member 104. It is also preferable to form a through and bend the end of the vertical reinforcing bar 62 so that the bent end is inserted into the coupling hole 107. Fastening means 63 such as nuts may be coupled to the bent ends so that the bent ends of the vertical rebars 62 inserted into the coupling holes 107 do not fall out. On the other hand, in the fastening hole 105 of the pile connecting device 101, the vertical fastening member 108 is inserted in advance for coupling with the connecting device 1 of the pier 10, the vertical fastening member 108 It is provided so that the edge part may protrude upward. As shown in FIGS. 8 and 9 in the state in which the pile foundation member 60 is manufactured in such a configuration, the piers 10 are installed on the pile foundation member 60, and the pile connecting device 101 is provided. ) Is integrally coupled with the connecting device 1 of the pier 10, the pile foundation member 60 and the pier 10 is integrated.

Specifically, in the state where the end of the vertical fastening member 108 protrudes through the fastening hole 105 of the coupling flange 102 of the pile connection device 101, when the pier 10 is placed thereon, The connecting device 1 of the pier 10 has its coupling flange 2 facing each other with the coupling flange 102 of the pile connecting device 101, the end of the vertical fastening member 108 is It is inserted through the fastening hole 5 formed in the coupling flange 2 of the connecting device 1 of the pier 10. The coupling flange 102 of the pile connecting device 101 and the connecting device 1 are coupled by fastening a fixing member such as a nut to the end of the vertical fastening member 108 protruding through the fastening hole 5. The flanges 2 are integrally and firmly connected to each other, so that the pile foundation member 60 and the pier 10 are easily and firmly integrated together.

Assembling the coping portion 20 on the upper portion of the pier 10 has been described above, so repeated description thereof will be omitted.

As described in detail above, since the connecting device 1 according to the present invention is provided in the precast concrete member in a state of being primarily coupled with the reinforcing bar (mesh) that is placed inside the precast concrete member, the connecting device 1 is precast. The effect is firmly combined with the concrete member.

In addition, since the coupling between the connecting device 1 is made by a simple operation, the precast concrete member having the connecting device 1 can be easily and firmly assembled in the field, thereby improving the workability and accordingly Savings and shortening of the air can be achieved.

In particular, the connecting device 1 may be applied to the prefabricated concrete pier structure, as illustrated above, the connecting device 1 is installed in the coping part 20, and the connecting device (10) is also connected to the pier 10. By installing 1), by simply assembling and connecting the connecting device 1 in the field, the pier 10 and the coping 20 can be easily and firmly assembled in the field to build a pier structure. The connecting device 1 may be applied to the connection of the foundation part 30 and the pier part 10, and thus, the pier part 10 may be easily and firmly assembled to the foundation part 30 to build a pier structure. You can do it.

In addition, after integrally installing the pile connecting device 101 of the configuration similar to the connecting device 1 on the upper end of the pile foundation member, the connecting device 1 and the pile coupled to the lower end of the piers 10 By combining the pile connecting device 101 of the base member, the bridge structure consisting of the pile foundation member can also be easily and firmly assembled to build.

In the above, as a connecting device of the present invention, and a prefabricated concrete member and structure using the same, a pier structure composed of a coping part, a pier part, and a base part has been described with reference to the accompanying drawings. The best embodiment of the present invention has been described by way of example and not by way of limitation.

Claims (14)

As a connecting device (1) provided in the precast concrete member for integrally coupling the precast concrete members to each other, A coupling flange 2 formed in a horizontal hollow disc shape and having a plurality of fastening holes 5 for fastening with another connection device 1; A first vertical member 3 having a cylindrical shape and integrally attached to the coupling flange 2 vertically; A second vertical member (4) formed in a cylindrical shape and positioned inside the first vertical member (3) and vertically integrally attached to the coupling flange (2); The second vertical member 4 is coupled to the end of the reinforcing bar provided in the precast concrete member, so that the connection device 1 is integrally coupled to the precast concrete member, characterized in that the precast concrete member Connecting device for The method of claim 1, Connection device for integrally coupling the precast concrete member, characterized in that the second vertical member (4) is formed with a coupling hole (7) to be coupled to the end of the reinforcing bar. The method according to claim 1 or 2, Connection device for integral coupling of the precast concrete member, characterized in that the vertical reinforcing rib (6) is further provided on the outside of the first vertical member (3). The method according to claim 1 or 2, Ribs 17 are provided inside the second vertical member 4, Connection reinforcing bar 50 is further reinforced to the precast concrete member is connected to the rib 17, characterized in that the coupling device for integral coupling of the precast concrete member. A precast concrete member having a connecting device 1 for integrally joining with a neighboring precast concrete member, The connecting device (1) is made of a horizontal hollow disc shape and a coupling flange (2) formed with a plurality of fastening holes (5) for fastening with the other connecting device (1), the coupling flange made of A first vertical member 3 integrally attached to (2) and a second vertical member formed in a cylindrical shape and positioned inside the first vertical member 3 and integrally attached to the coupling flange 2 vertically; It comprises a member 4; Reinforcing bars are disposed in the precast concrete member; Precast concrete member, characterized in that the end of the reinforcing reinforcing bar is coupled to the second vertical member (4), the connecting device (1) is integrally provided in the precast concrete member. The method of claim 5, The second vertical member 4 is formed with a coupling hole 7 to which the end of the reinforcing bar can be coupled, The end of the reinforcing reinforcing bar is bent, the precast concrete member, characterized in that the reinforcing reinforcing bar is coupled to the second vertical member (4) by the bent end is caught in the coupling hole (7). The method according to claim 5 or 6, Precast concrete member, characterized in that the vertical reinforcing rib (6) is further provided on the outside of the first vertical member (3). The method according to claim 5 or 6, Ribs 17 are provided inside the second vertical member 4, The reinforcing reinforcing bar 50 is further reinforced on the precast concrete member, Precast concrete member, characterized in that the end of the connecting reinforcing bar 50 is coupled to the rib (17). Prefabricated pier structure consisting of the pier 10, the coping portion 20 and the foundation, The pier 10 is made of precast concrete member; At both ends of the pier 10, the coupling flange 2 is formed in the form of a horizontal hollow disk and is formed with a plurality of fastening holes 5 for fastening with the other connecting device (1), the cylindrical A first vertical member 3 which is integrally attached to the coupling flange 2 and a first cylindrical member which is formed in a cylindrical shape and is located inside the first vertical member 3 and integrally attached to the coupling flange 2 vertically; 2 connecting device (1) comprising a vertical member (4) is installed, An end portion of the vertical reinforcing bar 12 of the reinforcing bar 11 disposed in the pier 10 is coupled to the second vertical member 4 so that the connecting device 1 is integrated with the pier 10. It is provided with; In the coping portion 20, the coupling is made in the form of a horizontal hollow disc in the position to be coupled with the pier 10, a plurality of fastening holes (5) for fastening with other connecting device (1) is formed A flange 2, a first vertical member 3 formed in a cylindrical shape and vertically integrally attached to the coupling flange 2, and formed in a cylindrical shape and positioned in the first vertical member 3 to be coupled to the coupling flange. A connecting device 1 comprising a second vertical member 4 integrally attached to (2) vertically is installed; An end portion of the vertical reinforcing bar 12 of the reinforcing bar 11 disposed in the coping part 20 is engaged with the second vertical member 4, so that the connection device 1 is integrally formed with the coping part 20. Provided; The vertical fastening member 18 is inserted into and fastened to the fastening hole 5 in a state where the connecting device 1 of the pier part 10 and the coping part 20 face each other, thereby being connected to the pier part 10. Prefabricated bridge structure, characterized in that the coping portion 20 has a structure that is integrally assembled. The method of claim 9, The foundation is composed of a concrete foundation 30, In the base portion 30, the coupling portion is formed in the form of a horizontal hollow disc in the position to be coupled with the pier 10, a plurality of fastening holes (5) for fastening with other connecting device (1) is formed A flange 2, a first vertical member 3 formed in a cylindrical shape and vertically integrally attached to the coupling flange 2, and formed in a cylindrical shape and positioned in the first vertical member 3 to be coupled to the coupling flange. A connecting device 1 comprising a second vertical member 4 integrally attached to (2) vertically is installed; An end portion of the vertical reinforcing bar 12 of the reinforcing bar 11 disposed in the base part 30 is engaged with the second vertical member 4, whereby the connecting device 1 is integrally formed with the base part 30. Provided; The vertical fastening member 18 is inserted into and fastened to the fastening hole 5 in a state where the connecting device 1 of the pier 10 and the base 20 are in contact with each other, thereby connecting the pier 10 with the pier 10. Prefabricated bridge structure, characterized in that the base portion 20 has a structure that is integrally assembled. The method of claim 9, The foundation is composed of a pile foundation member 60, The coupling flange 102 is formed in a horizontal hollow disk form and a plurality of fastening holes 105 for fastening with the connecting device 1 of the pier 10 is formed in a cylindrical shape, the coupling flange 102 The second vertical member 104 is integrally attached to the vertical and the vertical fastening member 108 through the coupling flange 102, the end of which protrudes upward. The pile connection device 101 is configured to include is installed on the upper end of the pile foundation member (60); The end of the vertical reinforcement 62 of the reinforcing bar 61 disposed in the pile foundation member 60 is coupled to the second vertical member 104, so that the pile connection device 101 is pile foundation member 60 Integrally provided with; When the pier 10 is coupled to the upper end of the pile foundation member 60, the connecting device 1 of the pier 10 is in contact with the pile connecting device 101 in the state The vertical fastening member 108 is inserted into and fastened to the fastening hole 5 of (1), so that the pier 10 and the pile foundation member 60 have a structure in which the assembly is integrally assembled. structure. The method according to any one of claims 9 to 11, The second vertical member (4, 104) is formed with a coupling hole 107 that can be coupled to the end of the vertical reinforcement (12), The end of the vertical reinforcement 12 is bent, so that the bent end is caught by the coupling holes (7, 107) that the vertical reinforcement 12 is coupled to the second vertical member (4, 104) Prefabricated pier structure characterized by. The method of claim 9 or 10, The prefabricated pier structure, characterized in that the vertical reinforcing rib (6) is further provided on the outside of the first vertical member (3). As a method of constructing a pier structure by integrally assembling the pier 10, the coping unit 20 and the foundation,  At both ends of the pier 10, the coupling flange 2 is formed in the form of a horizontal hollow disk and is formed with a plurality of fastening holes 5 for fastening with the other connecting device (1), the cylindrical A first vertical member 3 which is integrally attached to the coupling flange 2 and a first cylindrical member which is formed in a cylindrical shape and is located inside the first vertical member 3 and integrally attached to the coupling flange 2 vertically; 2 is installed a connecting device 1 including a vertical member 4, the end of the vertical reinforcement 12 of the reinforcing bar 11 disposed in the pier 10 is the second vertical member (4) By combining with, the pier (10) is made of precast concrete member with the connecting device (1) integrally provided in the pier (10); A coupling flange having a plurality of fastening holes 5 for fastening with the other connecting device 1 and having a horizontal hollow disc shape at a position to be coupled with the pier 10 in the coping part 20. (2), the first vertical member (3) consisting of a cylindrical body and vertically integrally attached to the coupling flange (2), and made of a cylindrical shape located inside the first vertical member (3) the coupling flange ( 2) to manufacture the coping part 20 by installing a connecting device (1) comprising a second vertical member (4) integrally attached to the vertically, the reinforcing bar 11 disposed in the coping part (20) End portion of the vertical reinforcing bar 12) is combined with the second vertical member 4 to produce the coping part 20 such that the connecting device 1 is integrally provided with the coping part 20; In the state where the connecting device 1 of the bridge portion 10 and the coping portion 20 are in contact with each other, a vertical fastening member 18 is inserted into and fastened to the fastening hole 5 to thereby connect with the pier portion 10. Construction method of prefabricated bridge structure, characterized in that the coping unit 20 is integrally assembled.

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