KR100971001B1 - Prefabricated precast bridge pier for having shear connection fixing plate - Google Patents

Abstract

The present invention relates to a prefabricated pier with a fixed plate for shear connection, and in particular, a pier foundation segment having a plurality of foundation shear connection materials on an upper surface thereof; A pier sphere segment having a spherical connection socket into which the base shear connector is inserted into a bottom surface, and a plurality of spherical shear connector provided on an upper surface thereof; In the prefabricated pier comprising a coping segment, which is provided with a coping connection socket for inserting the sphere shear connector is inserted into the bottom surface, formed in the shape of a disc or square plate made of metal or synthetic resin, the reinforcement of the reinforcement in the center Shear connection is formed so that the space is formed, a plurality of shear connector inserting holes are formed in the rim to insert and fix the base shear connector or sphere shear connector is fixed to the pier foundation segment or the pier sphere segment is connected to the shear connection A fixed plate for ashes; It is formed of a metal or synthetic resin material in the same shape as the shear plate fixing plate, a plurality of connection socket insertion holes are formed in the rim so that the connection socket for the sphere or coping connection socket is formed in the pier sphere segment or coping It characterized in that it further comprises a fixing plate for the connection socket is installed at the bottom of the segment.

According to the present invention as described above when the segment is manufactured by installing a fixed plate of the same standard in the shear connector and the connection socket, respectively, it is possible to eliminate the inconsistency between the shear connector and the connection socket when the segments are stacked.

Bridges, Piers, Foundations, Spheres, Copings, Matching Casting, Shear Connectors, Connection Sockets, Segments, Mismatches, Fixing Plates

Description

Prefabricated pier with prefabricated pier pier with shear plate {PREFABRICATED PRECAST BRIDGE PIER FOR HAVING SHEAR CONNECTION FIXING PLATE}

The present invention relates to a prefabricated pier having a fixed connection plate for shear connection, and in detail, a discrepancy between the shear connection material and the connection socket when the segments are laminated by installing fixing plates of the same size in the shear connection material and the connection socket when fabricating the segments, respectively. It relates to a prefabricated pier with a prefabricated fixed plate for shear connection.

In general, the construction of bridges due to concrete pouring on site increases the construction period, and due to the occurrence of environmental problems and civil complaints, such a construction method is reduced in recent years, and instead, preformed segments are prefabricated on site. The rapid construction method to use is used a lot.

The rapid construction method not only shortens the overall construction period of the bridge but also minimizes environmental problems and civil complaints. The rapid construction method requires the use of large equipment to mechanize the construction environment. It is true that it helps.

In assembling these segments, the shear key is to be provided for the shear connection in the discontinuous surface existing between the segments so that the shear resistance by mechanical engagement is exerted. In the case of precast concrete segments, these shear keys are generally formed as protrusions on one side of the segment when the segment is fabricated. However, in the case of manufacturing a shear key protruding to one side of the segment as described above, when demolding the formwork, the shear key is easily broken due to minor carelessness. In particular, the smaller the shear key size and the larger the protruding length, the more likely the breakage of the shear key is to occur during the segment manufacturing process. Not only that, when concrete is not properly filled in the shear key forming part of the formwork, when the mold is demolded, the shear key is often not formed in a desired shape in a segment.

In addition, when manufacturing the segments, each form a mold, and using the same to make the segments after mutual coupling there is a problem that can not be combined between the segments due to the position mismatch of the shear key.

In order to solve this problem, the applicant has developed Patent Application No. 10-2009-0042220 (formation for forming a cast casting and construction method of prefabricated pier using the same).

As shown in Figures 1 to 11, the construction method of prefabricated pier using the formwork for the match-casting casts the concrete to the bridge foundation formwork 110 after curing to produce a bridge foundation segment 120 A pier foundation part manufacturing process (S100) for demolding the formwork 110 for the pier foundation; A pair of match casting formwork bottom plates 20 is assembled to the top of the pier foundation segment 120 so as to use the upper surface of the pier foundation segment 120, that is, the surface where the pier concrete part is joined, and then match. A first pier concrete sphere manufacturing process (S110) of pouring concrete after casting the bottom plate of the casting formwork to produce a first piercing sphere segment 130-1; When the fabrication of the first pier sphere segment 130-1 is completed, the first pier sphere segment 130-1 with the match casting formwork installed is separated from the pier foundation segment 120 using lifting equipment. Next, after fastening the pair of formwork for the top casting plate 10, and then the upper plate 10 and the lower plate 20 to be integrated to each other, and after pouring concrete to the upper plate 10 to cure A second pier sphere part manufacturing step (S120) of manufacturing a second pier sphere segment 130-2; When the fabrication of the second pier sphere sphere 130-2 is completed, the bottom plate 20 of the match casting formwork is separated from the first pier sphere sphere 130-1, and then the second pier sphere segment After separating 130-2 from the first pier sphere segment 130-1 using the lifting equipment, the lower plate 20 of the match casting formwork is rotated to the upper end of the upper plate 10, and then lower After fastening the pair of plates 20, the lower plate 20 and the upper plate 10 are fastened together to be integrated, and after the concrete is poured on the lower plate 20, the curing is performed. N-th pier concrete part manufacturing process (S130) for producing -N); When the fabrication of the Nth pier sphere sphere (130-N, N = integer) is completed, the formwork for the match casting is completely separated, and then the Nth pier sphere sphere 130-N is lifted using the lifting equipment. After separating from the pier sphere segment 130-2 and installing the pier coping formwork 140 on the upper surface of the N-th pier sphere segment 130-N and poured concrete into the pier coping formwork 140 After curing, it is characterized by consisting of the coping part manufacturing process (S140) for producing the coping segment 150.

At this time, the pier foundation segment 120 is provided with a plurality of foundation shear connecting members 121 on the upper surface, the first, second, N pier sphere segments 130-1, 130-2, 130-N is the bottom surface Sphere connection socket 133 and a plurality of sphere shear connector 131 is provided on the upper surface coupled to the base shear connector 121, the coping segment 150 is a sphere shear connector 131 on the bottom surface Coping connecting socket 151 is provided with.

The pier foundation segment 120, the first, second, and N pier segments 130-1, 130-2, and 130 -N, and the coping segment 150 include an internal reinforcement 101, The sheath tube 103 is provided.

Hereinafter, the manufacturing process of the construction method of the prefabricated pier using the match casting formwork will be described in more detail with reference to the accompanying drawings.

<< pier foundation part manufacturing process-S100 >>

First, as shown in FIG. 3, the pier foundation formwork 110 is manufactured in the same manner as the outer shape of the pier foundation segment 120 (S101), and the reinforcement 101 is formed inside the pier foundation formwork 110. And, the sheath tube 103 and the fixing unit 105 is installed, and the upper surface of the pipe-like shear connecting member 121 is installed in a metal material on the upper surface.

In this state, after pouring concrete into the bridge foundation formwork (110) to cure (S102), to produce a bridge foundation segment 120 (S103), as shown in Figure 4, the foundation for the bridge foundation 110 Demoulding (S104).

<< first pier concrete part manufacturing process-S110 >>

And, as shown in FIG. 5, the upper surface of the pier foundation segment 120 manufactured, that is, the same shape as the outer shape of the pier sphere portion on the upper end of the pier foundation segment 120 to use as a formwork. The bolts are coupled to the second coupling plate 23 of the lower plate 20 of the form-casting die-shaped lower plate 20 and the second coupling plate of the other lower plate by fastening bolts. At this time, the upper plate 10 is located above the lower plate 20 (S111).

Then, the reinforcing bar 101 and the sheath tube 103 is installed in the lower plate 20, and the pipe-shaped concrete shear connecting member 131 is installed so as to protrude from the metal surface on the upper surface, and based on the bottom surface. A spherical connection socket 133 of a pipe shape is made of a metal material so as to be coupled to the shear shear connector 121. At this time, the first pier sphere sphere 130 may be formed in a solid or hollow, thereby changing the shape of the formwork for match casting.

In this state, the concrete is poured into the bottom plate 20 of the formwork for match casting, and then cured to produce the first piercing sphere segment 130-1 (S112 and S113).

<< second pier concrete part manufacturing process-S120 >>

And, as shown in FIG. 6, when the fabrication of the first pier sphere segment 130-1 is completed, the first pier sphere segment 130-1 having the match casting formwork installed is pier by using lifting equipment. Separate from the base segment 120 (S121).

Then, the upper plate 10 is raised using lifting equipment or the like to be perpendicular to the lower plate 20, and a pair of upper plates 10 are bolted together, and the upper plate 10 and the lower portion are The plate 20 is integrated with each other by bolts (S122).

Then, as shown in FIG. 7, the reinforcing bar 101 and the sheath tube 103 are installed in the upper plate 10, and the pipe-shaped concrete shear connector 131 protrudes from the upper surface thereof. It is installed so as to, and the sphere connecting socket 133 that is coupled to the sphere shear connector 131 of the first pier sphere sphere 130-1 is installed on the bottom.

In this state, the concrete is poured into the top plate 10 and then cured to produce a second piercing sphere segment 130-2, as shown in FIG. 15 (S123 and S124).

<< N pier concrete part manufacturing process-S130 >>

Then, as shown in FIG. 8, when the fabrication of the second pier sphere concrete segment 130-2 is completed, the bolts of the lower plate 20 of the formwork for match casting are loosened, and the first pier sphere segment 130-1 is removed. After separation), the lower plate 20 is moved to the top of the upper plate 10.

In this state, the second pier sphere segment 130-2 is separated from the first pier sphere segment 130-1 using lifting equipment or the like (S131).

Then, the lower plate 20 is raised by using lifting equipment or the like to fasten a pair of the lower plates 20 with bolts in a state where the upper plate 10 is perpendicular to the upper plate 10, and the lower plate 20 and the lower plate 20. The upper plate 10 is integrated by fastening with the bolt (S132).

When the integration is completed, as shown in FIG. 9, the reinforcing bar 101 and the sheath tube 103 are installed in the lower plate 20, and the upper surface of the pipe-shaped concrete shear connector 131 is made of a metal material. Is installed so as to protrude, and a sphere connecting socket 133 coupled to the sphere shear connector 131 of the second pier sphere sphere 130-2 is installed on the bottom.

In this state, the concrete is poured into the lower plate 20 and then cured to produce the N-th pier segment 130-N (S133, S134).

By repeating the above method to produce a number of segments for the pier spheres designed.

Then, when the curing of the N-th pier sphere sphere 130-N of the designed number is completed, the mold for match casting is demolded (S135).

<< coping part manufacturing process-S140 >>

After demoulding the match casting formwork, the Nth Pier Sphere Segment 130-N is separated from the second Pier Sphere Segment 130-2 using lifting equipment (S141), and then the Nth Pier Sphere Segment. The pier coping formwork 140 is installed on the upper surface of the 130-N (S142).

In this state, the inner reinforcement 101, the sheath pipe 103 and the fixing unit 105 is installed in the pier coping formwork 140, as shown in Figure 10, the concrete shear connector 131 on the bottom Coping connection socket 151 is installed with the.

Then, after pouring concrete into the bridge coping formwork 140 to cure to produce a coping segment 150 (S143, S144).

Then, when the fabrication of the coping segment 150 is completed, demolishing the pier coping formwork 140 (S145).

When installing them, each segment is moved to the pier installation site, and then the pier foundation segments 120 are sequentially stacked, starting with the pier foundation segment 120 to complete the pier as shown in FIG. 11. At this time, the pier foundation segment 120 is manufactured by constructing the remaining pier foundation through the site casting on the side. In addition, the longitudinal tension member is inserted to stack the pier foundation segment 120, the pier sphere segment 130, and the coping segment 150, and then tension and fix the longitudinal tension member 107.

However, the conventional construction method of precast piers using match casting formwork is coupled to each other due to the pressure or expansion and contraction of concrete when placing concrete when constructing the pier foundation segment, the pier concrete segment and the coping segment. This results in a flow of shear connectors and connection sockets, which results in a mismatch between the foundation shear connectors of the pier foundation segments and the sphere connection sockets of the pier sphere segments, and the shear shear and sphere connections of the pier sphere segments. Inconsistency between the socket and the spherical shear connector of the pier sphere segment and the coping connection socket of the coping segment also occurs, and thus there is a problem that the construction of the pier is impossible due to the mismatch between the segments.

In particular, when the pier foundation is cast in the field, there is a problem that the mismatch between the shear connector of the foundation segment and the connection socket of the segment for the pier sphere becomes larger.

The present invention is to solve the problems as described above, by installing a fixed plate of the same standard in the shear connector and the connection socket when manufacturing the segment, the shear connection fixing plate to eliminate the inconsistency between the shear connector and the connection socket when the segments are laminated An object of the present invention is to provide a prefabricated piers having a bridge.

Features of the present invention for achieving the above object,

A pier foundation segment having a plurality of foundation shear connectors on an upper surface thereof; A pier sphere segment having a spherical connection socket into which the base shear connector is inserted into a bottom surface, and a plurality of spherical shear connector provided on an upper surface thereof; In the prefabricated pier comprising a coping segment, which is provided with a coping connection socket for inserting the sphere shear connector is inserted into the bottom surface, formed in the shape of a disc or square plate made of metal or synthetic resin, the reinforcement of the reinforcement in the center Shear connection is formed so that the space is formed, a plurality of shear connector inserting holes are formed in the rim to insert and fix the base shear connector or sphere shear connector is fixed to the pier foundation segment or the pier sphere segment is connected to the shear connection A fixed plate for ashes; It is formed of a metal or synthetic resin material in the same shape as the shear plate fixing plate, a plurality of connection socket insertion holes are formed in the rim so that the connection socket for the sphere or coping connection socket is formed in the pier sphere segment or coping It characterized in that it further comprises a fixing plate for the connection socket is installed at the bottom of the segment.

Here, the first reinforcing member is integrally formed in the direction of each of the shear connecting member insertion hole in the center portion of the fixing plate for the shear connecting member to prevent deformation.

Here, the fixing plate for the shear connector is installed inwardly spaced by the concrete coating thickness when installed in the pier foundation segment or the pier sphere segment.

Here, the fixing plate for the connecting socket is formed with a second reinforcing member integrally in the direction of each of the connecting socket insertion hole in the center to prevent deformation.

Here, the fixing plate for the connection socket is installed inwardly spaced apart by the concrete coating thickness when installed in the pier sphere segment or coping segment.

According to the prefabricated precast pier provided with a shear connection fixing plate of the present invention configured as described above, when the segment is manufactured by installing a fixed plate of the same standard in the shear connector and the connection socket, respectively, the mismatch between the shear connector and the connection socket when the segments are stacked By eliminating, there is an advantage in that matchcasting can be made accurately by eliminating inconsistencies between segments when stacking segments.

Hereinafter, with reference to the accompanying drawings, the configuration of the prefabricated piers having a fixed connection plate for shearing according to the invention in detail as follows.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intentions or customs of the user, the operator, and the like. Therefore, the definition should be made based on the contents throughout the specification.

12A and 12B are perspective views showing the configuration of the fixing plate for the shear connection member and the fixing plate for the connecting socket during the prefabricated pier pier having a shear connection fixing plate according to an embodiment of the present invention, Figures 13a and 13b is a present invention 14 is a perspective view illustrating a configuration of a fixing plate for a connecting connector and a fixing plate for a connecting socket in the prefabricated pier, which includes a fixing plate for a shear connecting according to another embodiment of the present invention. It is explanatory drawing for demonstrating the manufacturing process of the prefabricated piers which are made.

12A to 22, the prefabricated pier 1 having a fixed plate for shear connection according to the present invention includes a pier foundation segment 120 and a plurality of pier sphere segments 130-1 and 130. -2, 130-N, a coping segment 150, a shear connecting member fixing plate 3, and a connecting socket fixing plate 5, respectively.

First, the pier foundation segment 120, the pier sphere segments 130-1, 130-2, and 130 -N, and the coping segment 150 have the same configuration as in the prior art, and their overlapping description is omitted.

In addition, the fixed plate for shear connector 3 is formed of a disk or a metal or synthetic resin as shown in Figure 12a, the space portion 3-1 is formed so as to enable reinforcement of the reinforcing bar in the center, based on the border A plurality of shear connector insert holes 3-1 are formed to insert and fix the shear connector 121 or the sphere shear connector 131 for the concrete to form the pier foundation segment 120 or the pier sphere segments 130-1 and 130. -2, 130-N) is installed on top.

Here, the first reinforcing member 3-3 is formed integrally with the first reinforcing member 3-3 in the direction of each shear connecting member insertion hole 3-1 in the center portion to prevent deformation. The thickness of 3-3) is preferably formed to be the same thickness as the fixing plate (3) for shear connector.

Here, in order to prevent the corrosion due to the external exposure when the mounting plate for the shear connector 3 is installed on the bridge foundation segment 120 or the bridge sphere segment 130-1, 130-2, 130-N It is installed inwardly spaced by the concrete cover thickness (d).

On the other hand, the fixed plate for shear connector 3 can be formed in a rectangular shape as shown in 13a, which corresponds to the shape of the piers.

In addition, the fixing plate 5 for the connecting socket is formed of the same shape as the fixing plate 3 for the shear connecting material, as shown in Figure 12b made of metal or synthetic resin, spherical connecting socket 133 or coping connecting socket A plurality of connection socket insertion holes 5-11 are formed to insert 151 and are installed at the lower ends of the pier sphere segments 130-1, 130-2, and 130 -N or the coping segment 150. .

Here, the fixing plate 5 for the connection socket 5 is formed with a second reinforcing member (5-3) integrally in the direction of each connection socket insertion hole (5-1) in the center portion to prevent deformation, the second reinforcing member ( The thickness of 5-3) is preferably formed to be the same thickness as the fixing plate 5 for the connection socket.

Here, the fixing plate 5 for the connecting socket is concrete to prevent corrosion due to external exposure when installed in the pier sphere segment (130-1, 130-2, 130-N) or the coping segment 150, etc. It is provided inwardly spaced by the coating thickness d.

On the other hand, the fixed plate for shear connector 3 can be formed in a rectangular shape as shown in 13b, which corresponds to the shape of the piers.

Hereinafter, the installation process of the prefabricated precast piers having a fixing plate for shear connection according to the present invention according to the present invention in detail with reference to the drawings.

<< pier foundation part manufacturing process >>

First, as shown in FIG. 14, the pier foundation formwork 110 is manufactured in the same manner as the outer shape of the pier foundation segment 120, and then the reinforcement 101 and the sheath are formed in the pier foundation formwork 110. The pipe 103 and the fixing device 105 are installed, and the upper shear connecting member 121 of the pipe shape is protruded from a metal material on the upper surface thereof.

Then, after inserting the respective basic shear connector 121 in the shear connector insertion hole (3-1) of the shear connector fixing plate 3 and fixed to the reinforcement 101 by the shear connector fixing plate (3) Let's do it. At this time, the fixing plate for shear connector 3 is spaced by the concrete coating thickness (d) and fixed to the inside.

In this state, after pouring concrete to the bridge foundation formwork 110 to cure (S102), to produce a segment for the bridge foundation 120, and then demolished the formwork for the bridge foundation 110 as shown in FIG. do.

<< first pier concrete part manufacturing process >>

And, as shown in FIG. 16, the upper surface of the pier foundation segment 120 manufactured, that is, the same as the outer shape of the pier sphere portion on the upper end of the pier foundation segment 120 to use as a formwork. The bolts are coupled to the second coupling plate 23 of the lower plate 20 of the form-casting die-shaped lower plate 20 and the second coupling plate of the other lower plate by fastening bolts. In this case, the upper plate 10 is located above the lower plate 20.

Then, the reinforcing bar 101 and the sheath tube 103 is installed in the lower plate 20, and the pipe-shaped concrete shear connecting member 131 is installed so as to protrude from the metal surface on the upper surface, and based on the bottom surface. A spherical connection socket 133 of a pipe shape is made of a metal material so as to be coupled to the shear shear connector 121.

In such a state, the respective shear connector 131 is inserted into the shear connector insertion hole 3-1 of the shear connector fixing plate 3, and then the shear connector fixing plate 3 is reinforced to the reinforcement 101. Fix it. At this time, the fixing plate for shear connector 3 is spaced by the concrete coating thickness (d) and fixed to the inside.

In addition, the respective socket connection sockets 133 are inserted into the connection socket insertion holes 5-1 of the connection socket fixing plate 5, and then the connection socket fixing plate 5 is fixed to the reinforcement 101. . At this time, the fixing plate 5 for the connection socket is fixed inside the spaced apart by the concrete coating thickness (d).

In this state, the concrete is poured into the bottom plate 20 of the formwork for the match casting, and then cured to manufacture the first piercing sphere segment 130-1.

<< second pier concrete part manufacturing process >>

Then, as shown in FIG. 17, when the manufacturing of the first pier sphere segment 130-1 is completed, the first pier sphere segment 130-1 having the match casting formwork installed is pier by using lifting equipment. Separate from the base segment 120 (S121).

Then, the upper plate 10 is raised using lifting equipment or the like to be perpendicular to the lower plate 20, and a pair of upper plates 10 are bolted together, and the upper plate 10 and the lower portion are The plate 20 is integrated with each other by bolts (S122).

Then, as shown in FIG. 18, the reinforcement 101 and the sheath tube 103 are installed in the upper plate 10, and the pipe-shaped concrete shear connector 131 protrudes from the upper surface of the metal material. It is installed so as to, and the sphere connecting socket 133 to be coupled to the sphere shear connector 131 of the first pier sphere segment 130-1.

In this state, each of the shear connector 131 for the sphere is inserted into the shear connector insertion hole 3-1 of the shear connector fixing plate 3, and then the shear connector fixing plate 3 is reinforced to the reinforcement 101. Fix it. At this time, the fixing plate for shear connector 3 is spaced by the concrete coating thickness (d) and fixed to the inside.

In addition, the respective socket connection sockets 133 are inserted into the connection socket insertion holes 5-1 of the connection socket fixing plate 5, and then the connection socket fixing plate 5 is fixed to the reinforcement 101. . At this time, the fixing plate 5 for the connection socket is fixed inside the spaced apart by the concrete coating thickness (d).

Then, after pouring concrete to the upper plate 10 to cure to produce a second pier sphere segment 130-2 as shown in FIG.

<< N bridge column manufacturing process >>

Then, as shown in FIG. 20, when the fabrication of the second pier sphere concrete segment 130-2 is completed, the bolts of the lower plate 20 of the formwork for the match casting are loosened, and the first pier sphere segment 130-1 is removed. After separation), the lower plate 20 is moved to the top of the upper plate 10.

In this state, the second pier sphere segment 130-2 is separated from the first pier sphere segment 130-1 using lifting equipment or the like (S131).

Then, the lower plate 20 is raised by using lifting equipment or the like to fasten a pair of the lower plates 20 with bolts in a state where the upper plate 10 is perpendicular to the upper plate 10, and the lower plate 20 and the lower plate 20. The upper plate 10 is integrated by fastening with the bolt (S132).

When the integration is completed, the reinforcing bar 101 and the sheath tube 103 is installed in the lower plate 20, and the pipe-shaped concrete shear connector 131 is installed so as to protrude from the upper surface, the bottom surface A sphere connection socket 133 coupled to the sphere shear connector 131 of the second pier sphere segment 130-2 is installed.

In this state, each of the shear connector 131 for the sphere is inserted into the shear connector insertion hole 3-1 of the shear connector fixing plate 3, and then the shear connector fixing plate 3 is reinforced to the reinforcement 101. Fix it. At this time, the fixing plate for shear connector 3 is spaced by the concrete coating thickness (d) and fixed to the inside.

In addition, the respective socket connection sockets 133 are inserted into the connection socket insertion holes 5-1 of the connection socket fixing plate 5, and then the connection socket fixing plate 5 is fixed to the reinforcement 101. . At this time, the fixing plate 5 for the connection socket is fixed inside the spaced apart by the concrete coating thickness (d).

In this state, the concrete is poured into the bottom plate 20, and then cured to produce the N-th pier segment 130-N.

By repeating the above method to produce a number of segments for the pier spheres designed.

When the curing of the N-th pier sphere segment 130-N, which is the designed number, is completed, the mold for match casting is demolded.

<< coping part manufacturing process >>

After demoulding the match casting formwork, the Nth Pier Sphere Segment 130-N is separated from the second Pier Sphere Segment 130-2 using lifting equipment, and then the Nth Pierce Sphere Segment 130-N. On the upper surface of N) is installed the piercing coping formwork 140.

In this state, as shown in FIG. 21, the inner reinforcing bar 101, the sheath pipe 103 and the fixing unit 105 are installed in the pier coping formwork 140, and the spherical shear connecting member 131 on the bottom surface. Coping connection socket 151 is installed with the.

In addition, each of the coping connection socket 151 is inserted into the connection socket insertion hole 5-1 of the connection socket fixing plate 5, and then the connection socket fixing plate 5 is fixed to the reinforcing bar 101. . At this time, the fixing plate 5 for the connection socket is fixed inside the spaced apart by the concrete coating thickness (d).

Then, after pouring concrete to the bridge coping formwork 140 to cure to produce a coping segment 150.

When the fabrication of the coping segment 150 is completed, the pier coping formwork 140 is demolded.

When installing them, each segment is moved to the pier installation site, and then the pier foundation segments 120 are sequentially stacked, starting with the pier foundation segment 120, thereby completing the pier as shown in FIG. At this time, the pier foundation segment 120 is manufactured by constructing the remaining pier foundation through the site casting on the side. In addition, the longitudinal tension member is inserted to stack the pier foundation segment 120, the pier sphere segment 130, and the coping segment 150, and then tension and fix the longitudinal tension member 107.

As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

1 to 11 are explanatory views for explaining the construction method of prefabricated piers using conventional formwork for the match casting;

12a and 12b is a perspective view showing the configuration of the fixed plate for the shear connection member and the fixing plate for the connecting socket of the prefabricated precast piers having a fixed plate for the shear connection according to an embodiment of the present invention,

13A and 13B are perspective views showing the configuration of the fixing plate for the connecting connector and the fixing plate for the connecting socket of the prefabricated pier prefabricated piers having a fixing plate for the shear connection according to another embodiment of the present invention,

14 is a cross-sectional view showing the configuration of a prefabricated pier having a fixed plate for shear connection according to the invention,

15 to 23 are explanatory views for explaining a manufacturing process of the prefabricated pier with a fixed plate for shear connection according to the present invention.

<Explanation of symbols on main parts of the drawings>

3: fixing plate for shear connector 3-1: insertion hole for shear connector

3-3: First reinforcing member 5: Fixing plate for connecting socket

5-1: connecting socket insertion hole 5-3: second reinforcing member

120: segment for pier foundation

130-1, 130-1, 130-N: Segment for first to N-pier pier spheres

150: segment for pier coping

Claims (5)

A pier foundation segment having a plurality of foundation shear connectors on an upper surface thereof; A pier sphere segment having a spherical connection socket into which the base shear connector is inserted into a bottom surface, and a plurality of spherical shear connector provided on an upper surface thereof; In the prefabricated piers including a; coping segment having a coping connection socket is inserted into the bottom shear connector for the sphere, Is formed in the shape of a disc or a square plate made of metal or synthetic resin material, the space portion is formed in the center to enable reinforcement of the reinforcement, a plurality of shear connector insert holes to insert and fix the base shear connector or sphere shear connector in the edge A fixed plate for shear connection member formed on an upper end of the pier foundation segment or the pier sphere segment; It is formed of a metal or synthetic resin material in the same shape as the shear plate fixing plate, a plurality of connection socket insertion holes are formed in the rim so that the connection socket for the sphere or coping connection socket is formed in the pier sphere segment or coping Prefabricated piers having a fixing plate for the shear connection characterized in that it further comprises a fixing plate for the connection socket is installed at the bottom of the segment. The method of claim 1, The fixed plate for the shear connector, Prefabricated piers having a shear connection fixing plate, characterized in that the first reinforcing member is formed integrally in the direction of each of the shear connector insert hole in the central portion to prevent deformation. The method of claim 2, The fixed plate for the shear connector, Prefabricated piers having a shear connection fixing plate that is installed inwardly spaced by the thickness of the concrete cover when installed in the bridge foundation segment or the pier sphere segment. The method of claim 1, The fixing plate for the connection socket, And a second reinforcing member integrally formed in the direction of each of the connection socket insertion holes at the central portion so as to prevent deformation. The method of claim 4, wherein The fixing plate for the connection socket, Prefabricated piers having a shear connection fixing plate is installed inwardly spaced by the thickness of the concrete coating when installed in the pier sphere segment or coping segment.

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