KR20100089377A - Connecting structure and connecting method for precast concrete box culvert - Google Patents

Connecting structure and connecting method for precast concrete box culvert Download PDF

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Publication number
KR20100089377A
KR20100089377A KR1020090008592A KR20090008592A KR20100089377A KR 20100089377 A KR20100089377 A KR 20100089377A KR 1020090008592 A KR1020090008592 A KR 1020090008592A KR 20090008592 A KR20090008592 A KR 20090008592A KR 20100089377 A KR20100089377 A KR 20100089377A
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South Korea
Prior art keywords
culvert
steel wire
fixing device
connection
end point
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KR1020090008592A
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Korean (ko)
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KR101021184B1 (en
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이상철
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이상철
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
    • E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals
    • E02D2300/0029—Steel; Iron
    • E02D2300/0034—Steel; Iron in wire form
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)

Abstract

By the very simple configuration, it is possible to prevent deterioration of adhesion of each PC culvert when connecting the PC culvert group and another PC culvert group, and to improve the workability at the time of connection, shorten the construction period of the PC culvert, and PC culvert connection structure and construction method to improve workability and shorten construction period by forming fitting structure of the shape corresponding to connection part between culvert and PC culvert and automatically matching connection center when connecting PC culvert It starts.

The present invention, by inserting a steel wire through the wire through hole formed in the PC culvert to connect a plurality of PC culverts, to fix the starting point of the steel wire connecting the plurality of PC culverts with a viewpoint fixing device, the end of the wire In the PC culvert connection structure that can be connected to another end point fixing device to the end point fixing device to connect another plurality of PC culverts in series, the wire can be inserted into the position of the wire through hole of the PC culvert. A buried pipe having an inner diameter is formed, and the end fixing device is fixed to one end of the connection end side of the pipe to be buried together in the PC culvert, and the end face and the end point of the connection end of the PC culvert correspond to each other. By forming a fitting-shaped groove and a fitting-shaped protrusion.

Description

Connecting Structure and Connecting Method for Precast Concrete Box Culvert}

The present invention relates to a precast concrete box culvert (hereinafter referred to as a PC culvert) connection structure, and more specifically, a prefabricated PC culvert embedded in the basement and used as facilities for water and sewage, electric power, communication, and common areas. The present invention relates to a PC culvert connection structure and construction method for tightly assembling using steel wire and steel wire fixing device.

In general, the assembled PC culverts have very weak connection strengths (adhesive forces), so that when the ground is soft and subjected to up, down, left and right rotational loads due to partial settlement and earthquakes, the connection areas between the assembled PC culverts are opened. There is a problem that adversely affects the performance of the function, such as lowering the watertightness, and for this purpose, a connection structure for strongly contacting the connection portion of the PC culvert using a steel wire and a wire fixing device is known.

For example, Korean Patent No. 10-0692913 discloses the steel wire and steel wire fixing device and a PC culvert connection structure using the same. That is, as shown in Figure 1a and Figure 1b, the steel wire fixing device 100 is a terminal fixing device of the wire detachably coupled to both ends of the hollow coupling member 101 and the coupling member material 101, respectively It consists of 100A and the viewpoint fixing apparatus 100B.

The end point fixing device 100A and the point fixing device 100B include a pair of wedge cone members 102 and 102 'having cone-shaped wedge holes 104 and 104' formed at the center thereof, and steel wires 10 and 10 '. And a pair of wedges 103 and 103 'fixed to the wedge holes 104 and 104'.

Female threaded portions 106 are formed on both inner circumferential surfaces of the coupling member 101, and male threaded portions 105 and 105 correspond to the female threaded portions 106 on the outer circumferential surfaces of the pair of wedge cone members 102 and 102 '. ') Is formed so that the pair of wedge cone members 102 and 102' can be separated and joined at both sides of the coupling member 101. In addition, the inner circumferential surfaces of the wedge holes 104 and 104 'of the cylindrical wedge cone members 102 and 102' and the outer circumferential surfaces of the wedges 103 and 103 'may be formed in a cone shape corresponding to each other to bite and fix the steel wires 10 and 10'. It is supposed to be.

At this time, the wedges 103 and 103 'are divided into three, and the steel wire 10' is inserted in the insertion direction (arrow a) through the center of the wedge cone member 102 'as shown in the right wedge 103' of FIG. 1B. When it is spaced apart from the wedge hole 104 'of the wedge cone member 102' and the inner diameter of the wedge 103 'is expanded, the steel wire 10' can be inserted into the wedge hole 104 ', the left wedge ( As shown in 103, when the steel wire 10 is inserted and pulled outward (arrow b), the wedge 103 comes into close contact with the wedge hole 104 'of the wedge cone member 102', so that the wedge 103 As the inner diameter is reduced, it is fixed to bite the steel wire (10).

2A to 2E illustrate a process of connecting a plurality of PC culverts using the steel wire fixing apparatus 100. First, as illustrated in FIGS. 2A and 2B, a plurality of PC culverts to be connected are shown. After placing 201, 202, and 203, the steel wire 11 is inserted through the steel wire passing hole 112. The left end of the steel wire 11 is fixed to the left side of the first PC culvert 201 in the starting position, the concave portion 110 formed in the cross section of the first PC culvert 201 of the view point fixing device 600 The wedge cone member 602 is positioned, the wedge 603 is bitten at the left end of the steel wire 11, and the wedge 603 is pulled by pulling the steel wire 11 (in the direction of arrow b in FIG. 2B). ) Is inserted into the wedge hole of the wedge cone member 602 so that the steel wire 11 is fixed. The other end of the steel wire 11 passes through the steel wire through hole 112 formed in the plurality of PC culverts and is exposed to the outside of the third PC culvert 203 on the right side. The steel wire fixing device 100 is installed in the recess 110 formed in the exposed end surface of the third PC culvert 203. Specifically, the wedge-con member 102 of the terminal fixing device 100A of the bidirectional steel wire fixing device 100 is installed. ) And wedge 103 are used, and the steel wire 11 exposed to the outside of the third PC culvert 203 is bitten by the wedge 103.

Subsequently, the steel wire 11 bitten by the wedge 103 is tensioned by the hydraulic tension device 400 so that the wedge 103 is inserted into the wedge hole 104 of the wedge cone member 102 so that the steel wire 11 is fixed. That is, when the hydraulic tension device 400 pulls and releases the steel wire 11 in the direction of arrow b of FIG. 2B, the wedge 103 receives the steel wire 11 with the wedge 103 by the reaction force by the tension force of the steel wire 11. Since the steel wire 11 is brought into close contact with the wedge hole 104 of the member 102 and the steel wire 11 contracts, the wedge 103 is further pulled in the direction of the arrow a, so that the steel wire 11 is firmly set so that the PC culverts 201, 202, and 203 are steel wires ( 11) is connected in a state of being strongly in contact with the contraction force.

Subsequently, the steel wire 11 on the side of the PC culvert 203 is cut, and the left female thread portion 106 of the coupling member 101 is connected to the male thread portion 105 of the wedge cone member 102 on which the steel wire 11 is fixed. Screw to integrate (see Figure 2c). Subsequently, the male thread portion 105 'of the wedge-con member 102' of the viewpoint fixing device 100B is similarly coupled to the right female thread portion 106 of the coupling member 101 to be integrated.

Subsequently, the fourth, fifth and sixth PC culverts 204, 205 and 206 are subsequently connected to the third PC culvert 203, and the wire passing holes of the fourth, fifth and sixth PC culverts 204, 205 and 206 are connected. Insert the steel wire 11 'through 112'.

The steel wire 11 'inserted into the steel wire passing hole 112' and coming out of the left bonding surface of the fourth PC culvert 204 is already installed in the third PC culvert 203. Is inserted into the wedge hole 104 'of the right wedge-con member 102', which is the viewpoint fixing apparatus 100B, and is bitten by the wedge 103 '(see Fig. 2D).

As described above, the other end of the newly inserted steel wire 11 ', that is, the steel wire 11' coming out of the joint surface of the sixth PC culvert 206, is tensioned by the hydraulic tension device 400, ') Is pulled to the right, and the steel wire 11' is fixed to the right wedge-con member 102 'provided on the left joining surface of the fourth PC culvert 204. That is, the wedge 103 'inserted in the wedge hole 104' of the right wedge cone member 102 'is pulled to the right while biting the steel wire 11' and completely inserted into the wedge hole 104 'so that the steel wire ( 11 ') is fixed to the right wedge-con member 102' (see FIG. 2E). As such, by using the bidirectional steel wire fixing device 100, the PC culvert may be continuously connected.

This PC culvert connection structure, as shown in Figure 2e when the first PC culvert (201, 202, 203) when connecting, for example, by pulling the steel wire 11 with a tension force of 5 tons by the hydraulic tension device 400, The connection portions of the PC culverts 201, 202, and 203 are connected by a close contact force of 5 tons in the direction of arrow a.

However, in order to connect the PC culvert 204, 205, 206 to the PC culvert 203, when pulling the wire 11 'in the direction of the arrow b with the same 5 tons of tension force, the wire connected through the bidirectional wire fixing device 100 ( 11) together, the force of 5 tons in the direction of the arrow b acts together, thereby achieving an equilibrium with the contracting force of the steel wire 11 acting as the cohesion force of the PC culverts 201, 202, 203, and the cohesion force at each connection portion of the PC culverts 201, 202, 203. In this case, when the force is applied from the outside, the connection between the PC culverts is widened, thereby degrading watertightness, and thus adversely affects the performance of the function. The more connections, the worse.

In order to solve the above problems, for example, Korean Patent No. 10-0872197 discloses that the adhesion to the connection portion of the PC culvert is strengthened. That is, as shown in Figure 3, the two-stage integrated bi-directional wire fixing device 300 and the two types of PC culvert group 310, 410 formed with the first and second steel wire insertion hole (320, 420) in different positions, respectively PC culvert is assembled using the, PC culvert group 310 is connected to the steel wire (W1) by inserting the first steel wire insertion hole 320, PC culvert group 410 is the steel wire (W2) 2 is inserted into the wire insertion hole 420 and connected, the connection point of the steel wire (W2) as a two-stage integrated bi-directional wire fixing device 300 provided in the last PC culvert 313 of the PC culvert group 310 This is the connected configuration.

Therefore, when pulling the steel wire (W2) in close contact with the PC culvert group 410 toward the PC culvert group 310, because the pull pull the PC culvert 313 without pulling the steel wire (W1), the angle due to the contracting force of the steel wire (W1) While maintaining the adhesion to the PC culverts (311, 312, 313) intact can be connected between the PC culvert group 310 and the PC culvert group 410, thereby preventing the adhesion between the respective PC culverts (311, 312, 313) is weakened, The PC culvert connection structure can maintain the adhesion to each PC culvert regardless of the number of connections even if a plurality of PC culvert groups in a row.

However, this PC culvert connection structure is composed of two stages of the bidirectional wire fixing device 300, and also in the PC culvert should be provided with two types of PC culvert formed the wire insertion holes (320,420) at different positions, Compared to the conventional PC culvert connection structure that used a single wire pass-through hole located on the same line as the one-stage bidirectional steel wire fixing device, the manufacturing cost increases.

In addition, since connecting the PC culvert group 310 and the PC culvert group 410, the center line of the wires (W1, W2) that tension both sides is not located in a straight line, the wire (W2) at the end of the PC culvert group 410 ) Tension, rotational load acts due to the contracting force of the steel wire (W1) and the tension of the steel wire (W2) acting in the opposite direction in the PC culvert group 310 side two-stage two-way wire fixing device 300 The two-stage bi-directional steel wire fixing device 300 does not withstand the tension force to occur in the direction of the tension occurs, in order to prevent such a phenomenon should be provided with a protrusion prevention configuration of a complex structure, PC culvert group 310 and PC Since the culvert group 420 does not receive collinear tension, there is a problem of weakening of adhesion.

The present invention is to solve the conventional problems as described above, the object is to prevent the degradation of the adhesion of each PC culvert when connecting the PC culvert group and another PC culvert group by a very simple configuration, the connection It is to provide PC culvert connection structure and construction method which can shorten the construction period of PC culvert by improving workability.

In addition, another object of the present invention is to use the existing two-way wire fixing device and one wire through hole as it is so that each wire connecting the PC culvert group and another PC culvert group in a straight line, the end point fixing device Buried in the PC culvert, but firmly fixed with pipes buried in the steel wire passage hole, when connecting another PC culvert group, it easily prevents the breakout (protrusion) of the steel wire fixing device, and is formed at the connection end of the PC culvert By simplifying the shape of the shear key (shear key) to reduce the mold cost for the PC culvert manufacturing, to provide a PC culvert connection structure and construction method that can reduce the overall manufacturing cost and the construction cost of the PC culvert.

In addition, the present invention forms a fitting structure corresponding to the connection portion between the PC culvert and the PC culvert to improve the workability by matching the role of the shear key and the connection center automatically when connecting the PC culvert, increase the cross-sectional area of the shear key It is to provide PC culvert connection structure and construction method that can endure any load and deformation in any direction such as left, right, up and down and rotation by one shear key respectively.

The present invention for achieving the above object, by inserting a steel wire through the wire through hole formed in the PC culvert to connect a plurality of PC culvert, and fix the time of the steel wire connecting the plurality of PC culvert with a viewpoint fixing device, A PC culvert connection structure for fixing an end point of a steel wire with an end point fixing device and connecting another point fixing device to the end point fixing device to connect another plurality of PC culverts in series, wherein the wire passage hole of the PC culvert A buried pipe having an inner diameter into which a steel wire can be inserted is formed, but the end point fixing device is fixed to one end of the connection terminal of the pipe, and the PC culvert connection structure is formed together with a PC culvert.

In the present invention, the fixing of the pipe and the end point fixing device is made by screw coupling, characterized in that the PC culvert connection structure protruding the engaging reinforcing portion to increase the coupling force of the PC culvert on the outer peripheral surface of the end point fixing device. There is this.

In addition, the present invention is characterized in that the PC culvert connection structure is formed with a fitting groove and a fitting protrusion for fitting to the connection end side end surface and the connection end side end surface of the PC culvert.

In addition, the present invention, a plurality of PC culvert having a steel wire through hole, and a pipe having an inner diameter that can be inserted into the steel wire buried form, the PC culvert embedded with a fixed terminal fixing device at one end of the connection end side of the pipe Preparing a first step; A second step of preparing first and second PC culvert groups formed by successively arranging one PC culvert in which the pipe and the end point fixing device are embedded in the plurality of PC culverts; After inserting the steel wire through the steel wire passage hole and the pipe of the first PC culvert group side, the point of the wire is settled as a point fixing device at the connection point of the PC culvert at the starting position, the end of the wire is tensioned the wire A third step of closely contacting and connecting the first PC culvert group by fixing to the end point fixing device of the PC culvert at the end position in the end; A fourth step of coupling another viewpoint fixing device to an endpoint fixing device in which the end point of the steel wire is fixed; A fifth step of sequentially arranging a second PC culvert group in the first PC culvert group; And inserting a steel wire through the second PC culvert group side wire passing hole and a pipe, and then performing the same process as the third process to connect the second PC culvert group to the first culvert group in close contact. PC culvert construction method characterized in that made of a process.

According to the PC culvert connection structure of the present invention having the above-described configuration, by fixing the terminal fixing device of the steel wire to one end of the connection end side of the pipe through which the steel wire passes through and embedded in the PC culvert together, the terminal fixing device and the PC culvert Is integrated and accordingly, the PC culverter on the end point fixing device side is pulled when the point fixing device is pulled to the end point fixing device by connecting the point fixing device to the end point fixing device to connect the next PC culvert group. The shrinkage force of the steel wire can be maintained as it is. This allows the next PC culvert to be continuously connected while maintaining the adhesion of the previous PC culvert, and prevents the adhesion between the PC culverts from being weakened. The problem of adversely affecting the performance of the function, such as opening of the site and lowering the watertightness, can be solved.

In addition, the present invention is prevented from being separated from the end point fixing device from the PC culvert according to the protrusion formed to enhance the coupling force with the PC culvert on the outer peripheral surface of the end point fixing device, the pulling force acting on the end point fixing device The coupling force between the PC culvert and the end point fixing device can be maximized in the direction of.

In addition, the present invention is a PC culvert because the connection center is automatically matched when connecting the PC culvert by the fitting-shaped groove and the fitting-shaped protrusion formed to correspond to the end end side and the end point of the connection point side of the PC culvert Is easy to connect in a straight line, and the water-expanded rubber interposed between the connection parts of the PC culverts expands when it comes into contact with water and expands in contact with water in the process of use. It increases the adhesion of PC culverts and prevents the invasion of foreign substances.

Hereinafter, the PC culvert connection structure according to the present invention will be described in detail with reference to the accompanying drawings. 4A to 4D show a PC culvert connection structure according to an exemplary embodiment of the present invention. First, as shown in FIG. 4A, a PC culvert to be connected is a PC culvert 10A having a wire passing hole 10a. 10B) and embeds the pipe 11 having an inner diameter into which the steel wire can be inserted into the steel wire through hole, and fixes the terminal fixing device 20 at one end of the connection end side of the pipe 11 so as to be integrated. It consists of a PC culvert 10C embedded together at the time of formation, and one PC culvert 10C having a pipe 11 and an end point fixing device 20 embedded in a plurality of PC culverts 10A, 10B at the end position. It arrange | positions and comprises one PC culvert group G1.

At this time, the pipe 11 and the end point fixing device 20 are preferably fixed by screwing. In this embodiment, the male threaded portion 11a is formed on the outer circumferential surface of the pipe 11, and the end point The wedge-con body 21 of the fixing device 20 is provided with a female screw portion 21a which is screwed with the male screw portion 11a so that they are screwed together. However, the male screw portion may be designed such that the female screw portion is formed on the pipe 11 side on the wedge-con body 21 side.

In addition, the outer edge surface of the wedge cone body 21 of the end point fixing device 20 is formed by protruding the coupling reinforcing portion (21b) to increase the bonding force with the end point fixing device (20) during the concrete casting of the PC culvert 10C. The shape of the coupling reinforcing portion 21b may be any shape as long as the coupling force with the PC culvert 10C can be improved, such as forming a plurality of protrusions or bending and protruding the hooks.

On the other hand, the configuration of the end point fixing device 20 and the point fixing device 30, as shown in Figure 5, the wedge cone body in which the cone-shaped wedge holes (22, 32) are formed ( 21 and 31 and wedges 23 and 33 that are fitted into and fixed to the wedge holes 22 and 32. The inner circumferential surfaces of the wedge holes 22 and 32 and the outer circumferential surfaces of the wedges 23 and 33 of the wedge cone bodies 21 and 31 are formed in a cone shape corresponding to each other. As the wire expands or contracts, the wire is fixed.

In addition, the end point fixing device 20 and the point fixing device 30 are formed to be separated from each other. That is, as shown in FIGS. 5 and 6, the endpoint fixing device 20 forms a first coupling part 40 at one end of the wedge cone body 21, and the wedge cone of the viewpoint fixing device 30. One end of the body 31 is formed by forming a second coupling portion 50 for coupling to the first coupling portion 40.

The first engagement portion 40 has an inward flange 41 having an inner circumferential surface smaller than the diameter of the inner space inner circumferential surface of the wedge cone body 21, and the inner circumference of the inward flange 41. Helical grooves 42 are formed on the surface from the outer end surface to the inner end surface and are formed in a plurality of helical grooves at equal intervals, and an induction inclined groove leading to the inlet of the helical groove 42 is formed at the outer end surface of the inward flange 41. 43 is formed, and the engaging groove 44 is formed in the inner end surface of the inward flange 41 at equal intervals.

The second coupling part 50 has a coupling protrusion 51 that protrudes from one side of the wedge cone body 31 and has an outer peripheral surface having a diameter smaller than the inner peripheral surface of the inward flange 41. A plurality of helical protrusions 52 having a corresponding shape are formed at equally spaced intervals so as to be inserted into the helical grooves 42 of the first coupling portion 40 at end portions of the first coupling portion 40, and on the outer end surface of the helical protrusions 52. An insertion guide inclined surface 53 corresponding to the insertion guide inclined groove 43 of the first coupling part 40 is formed, and the locking groove 44 of the first coupling part 40 is formed at the inner end surface of the helical protrusion 52. Formed to correspond to each other is formed by forming the engaging projections 54 that can hold each other.

Therefore, as shown in FIGS. 5 and 7A to 7B, the helical protrusion 52 of the second coupling part 50 is inserted through the helical groove 42 of the first coupling part 40, and then circumferentially. The inner end face of the helical protrusion 52 is held by the inner end face of the inward flange 41 by the rotation thereof, and the locking protrusion 54 of the second coupling part 50 is held by the first coupling part 40. The end point fixing device 20 and the point fixing device 30 are coupled by the first coupling part 40 and the second coupling part 50 by being held in the locking groove 44.

In addition, the viewpoint fixation device 30 is fixed to the snap ring 36 on the inner circumferential surface of the space portion 35 formed in the wedge cone body 31, as shown in FIG. A spring 38 is elastically installed between the spring adapter 37 and the spring adapter 37 and the wedge 33.

And in the present invention, as shown in Fig. 8, the fitting end groove portion 12 and the fitting projection portion 13 to be fitted to correspond to each other in the connection end side end surface and the connection end side end surface of the PC culvert 10A ~ 10C. ), The centers of the PC culverts 10A to 10C which are interconnected by matching the fitting groove 12 and the fitting protrusion 12 are automatically matched and are not easily shifted even after connection. Do not.

In the drawing, the fitting end projections 13 are formed on the upper and lower ends of the connection end side of the PC culvert 10A to 10C, and the fitting grooves 12 are formed on the left and right sides of the PC culvert 10A to 10C. The upper and lower sides have a fitting groove portion 12 formed therein, and the left and right sides have a fitting protrusion portion 13, but is not limited thereto, but is not limited thereto and fits with the fitting groove portion 12. If the projections 13 are formed in the corresponding shapes and positions, they may be formed in any of them. In the fitting grooves 12 and the fitting projections 13, the shape of the projections 13 is most preferably formed in an arc shape. .

In addition, it is preferable to improve the watertightness at the connection part of the PC culvert 10A-10C through the water-expandable rubber 14 between PC culverts 10A-10C, and to prevent the invasion of an external substance.

Referring to the construction method by the PC culvert connection structure of the present invention made of such a configuration as follows.

First, as shown in FIG. 4A, a plurality of PC culverts 10A and 10B to be connected, and a PC culvert group 10C having consecutively arranged PC culverts 10C in which pipes 11 and end point fixing devices 20 are embedded ( After placing G1) in the city factory, the steel wire W1 is inserted through the steel wire through hole 10a and the pipe 11. The left end of the steel wire W1 is fixed to the left side of the PC culvert 10A at the start position, and the normal view point fixing device 30A is placed on the left end of the PC culvert 10A, and the After the wedge 33A is bitten at the left end, the wedge 33 of the wedge cone body 31 is held by the wedge 33 biting the steel wire W1 by immersing the steel wire W1 in the direction of arrow b in FIG. 4A. ) Is inserted into the steel wire (W1) to be fixed.

Subsequently, the right side of the steel wire W1 is bitten by the wedge 23 of the end point fixing device 20, and the steel wire W1 bitten by the wedge 23 is tensioned in the direction of arrow b by a hydraulic tension device (not shown), When the tension is released, the wedge 23 is in close contact with the wedge hole 22 of the wedge cone member 21 while biting the steel wire W1 due to the reaction force of the steel wire W1. Since the wedge 23 is further pulled in the direction of the arrow a while contracting, the steel wire 11 is firmly set so that the PC culverts 10A, 10B, and 10C are strongly connected by the contracting force of the steel wire 11.

Subsequently, as shown in FIG. 4B, the end of the steel wire W1 on the side of the end point fixing device 20 is cut, and the viewpoint is fixed to the first coupling portion 40 of the wedge cone body 21 on which the steel wire W1 is fixed. By coupling the second coupling part 50 formed on the wedge-con body 31 of the device 30, the endpoint fixing device 20 and the viewpoint fixing device 30 are simply connected (see FIGS. 7A to 7D).

Next, as shown in FIG. 4C, a plurality of PC culverts 10A and 10B connected to the PC culvert group G1 and the PC culvert 10C in which the pipe 11 and the end point fixing device 20 are also embedded The PC culvert group G2 arranged in succession is located in the city factory, and then the steel wire W2 is inserted through the steel wire through hole 10a and the pipe 11. The steel wire W2 exiting outside the left joining surface of the PC culvert group G2 side PC culvert 10A through the steel wire passage hole 10a and the pipe 11 is already the PC culvert group G1 side end point fixing device. After insertion into the wedge hole 32 of the wedge cone body 31 of the viewpoint fixing device 30 coupled to the 20, the wedge 33 is pulled in the direction of arrow b.

The other end of the steel wire W2, that is, the steel wire W2 exposed through the wedge 23 of the terminal fixing device 20 provided in the PC culvert 10C of the PC culvert group G2 is the end point fixing device 20 When the wedge 23 is bitten and the steel wire W2 bitten by the wedge 23 is tensioned in the direction of arrow b by a hydraulic tension device (not shown), the PC culvert group G2 as shown in FIG. 4D. ) Is connected in close contact with the PC culvert group G1, and after that, when the tension is released, the wedge 23 of the end point fixing device 20 of the PC culvert group G2 side by the reaction force by the tension force of the steel wire W2. Since the steel wire W2 is held close to the wedge hole 22 of the wedge cone member 21 and the steel wire W2 contracts, the wedge 23 is further pulled in the direction of the arrow a, so the steel wire W2 is Strongly settled PC culverts (10A, 10B, 10C) of the PC culvert group (G2) are connected in a state of being closely adhered by the contracting force of the steel wire (W2).

At this time, when inserting the steel wire (W2) into the wedge 33 (arrow a direction) as shown in Figure 5, the wedge 33 is pushed back, but the wedge 33 is a wedge hole by the elastic repulsive force of the spring 38 Since it is to be in close contact with (32), when the wire (W2) is pulled again in the opposite direction of the arrow a to tension after insertion, the wedge (33) is in close contact with the wedge hole (32) with a spring force more secure the wire (W2) It can be tightened to fix it, thereby eliminating the problem that the fixing of the steel wire (W2) is not made as the wedge 33 is not fully pushed back and close to the wedge hole 32.

Further, as shown in FIG. 4C, when the steel wire W2 is tensioned in the direction of the arrow b in order to closely contact the PC culvert group G1 to the PC culvert group G1, the viewpoint fixing apparatus 30 is connected to the terminal fixing apparatus 20. Since the first and second coupling parts 40 and 50 are coupled to each other, the end point fixing device 20 is integrally coupled with the pipe 11 and embedded in the PC culvert 10C together with the pipe 11. The pulling force of the steel wire W2 does not affect the steel wire W1 closely in contact with the PC culvert group G1 at all, and pulls the PC culvert 10C itself. Accordingly, the next PC culvert group G2 can be continuously connected while the contracting force of the PC culvert group G1 side steel wire W1 is maintained as it is, thereby preventing the adhesion between the PC culverts from being weakened from the outside. When the force acts, the connection between the PC culverts can be opened to reduce the watertightness, and the problem of adversely affecting the function can be solved.

In addition, the coupling reinforcing portion formed on the outer circumferential surface of the terminal fixing device 20 increases the coupling force with the PC culvert 10C, so when the tensioning wire (W2), the terminal fixing device 20 is PC The separation from the culvert 10C can be prevented, and the coupling force between the PC culvert 10C and the end point fixing device 20 can be maximized with respect to the direction of the pulling force acting on the end point fixing device 20.

And, as shown in Fig. 8, the present invention is fitted with a fitting-shaped groove 12 formed to correspond to each other at the end surface and the end point of the connection end side of the PC culvert 10A, 10B, 10C When connecting the PC culvert 10A, 10B, 10C automatically by the protrusion 13, the connection center is automatically matched, eliminating the trouble of having to align the PC culvert 10 in a straight line state, and the construction is easy, and the PC culvert 10A Since the water-expanded rubber 14 interposed between the connecting portions of, 10B and 10C has the property of expanding when contacted with water, it expands by contacting with external invasive water in the process of use after the construction of the PC culvert. This prevents water from entering the PC culvert and also prevents dust from entering the environment.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be illustrative of the present invention and not to be construed as limiting the scope of the present invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Figure 1a and 1b is an exploded perspective view and a cross-sectional view showing a conventional bidirectional steel wire fixing device.

2a to 2e is a process diagram showing a method of connecting a conventional PC culvert.

Figure 3 is a cross-sectional view showing another conventional PC culvert connection structure.

Figure 4a to 4d is a process diagram showing a PC culvert connection structure and construction method according to the present invention.

Figure 5 is a cross-sectional view showing the configuration of the end point fixing device and the point fixing device used in the PC culvert connection structure according to the present invention.

Figure 6 is an exploded perspective view showing a coupling relationship between the end point fixing device and the point fixing device used in the PC culvert connection structure according to the present invention.

7a to 7d is an enlarged view of a main part for explaining the process of coupling the end point fixing device and the point fixing device used in the PC culvert connection structure according to the present invention.

Figure 8 is an exploded perspective view showing the connection portion of the PC culvert used in the PC culvert connection structure according to the present invention.

<Description of the symbols for the main parts of the drawings>

10A, 10B, 10C: PC culvert G1, G2: first and second culvert groups

10a: steel wire through hole 11: pipe

12: fitting shape groove portion 13: fitting shape projection

14: water-expandable rubber 20: end point fixing device

21,31: wedge cone body 21b: bonding reinforcement

22,32: Wedge Hole 23,33: Wedge

30: viewpoint fixing device 40, 50: first and second coupling portion

41: inward flange 42: helical groove

43: insertion guide inclined groove 44: locking groove

51: engaging projection 52: helical projection

53: inserting inclined plane 54: locking projection

Claims (6)

Insert a steel wire through the steel wire through hole formed in the PC culvert to connect a plurality of PC culverts, fix the start of the steel wire connecting the plurality of PC culverts with a point fixing device, and fix the end of the steel wire with an end point fixing device, In the PC culvert connection structure to combine the plurality of PC culverts in succession by combining another viewpoint fixing device to the end point fixing device, While embedding the pipe (11) having an inner diameter that can be inserted into the steel wire through hole position of the PC culvert, the terminal fixing device 20 is fixed to the end of the connection end side of the pipe (11) PC PC culvert connection structure, characterized in that buried in the culvert. The PC culvert connection structure according to claim 1, wherein the pipe (11) and the end point fixing device (20) are fixed by screwing. The PC culvert connection structure according to claim 1, wherein a coupling reinforcing portion (21a) is formed on the outer circumferential surface of the end point fixing device (20) to increase the coupling force of the PC culvert. 2. The fitting-shaped groove portion 12 and the fitting-shaped protrusion 13 which are fitted to each other in correspondence with the connection end side end surface and the connection point side end surface of the PC culvert are formed. PC culvert connection structure. According to claim 1, wherein the fitting end projections 13 are formed on the upper and lower ends of the connection end side of the PC culvert, and the fitting grooves 12 are formed on the left and right sides of the PC culvert. PC culvert connection structure, characterized in that the upper and lower side to form a fitting-shaped groove portion 13 and the left, right side to form a fitting-shaped projection portion (12). A plurality of PC culverts (10A, 10B) having a steel wire through hole (10a) and a pipe (11) having an inner diameter that can be inserted into the steel wire is embedded, the end point is fixed to one end of the connection end of the pipe (11) A first step of fixing the device 20 to prepare a PC culvert 10C embedded together; The first and second PC culvert groups G1, formed by successively arranging one PC culvert 10C in which the pipe 11 and the end point fixing device 20 are embedded in the plurality of PC culverts 10A and 10B. A second step of preparing G2); After the steel wire W1 is inserted through the first PC culvert group G1 side steel wire passing hole 10a and the pipe 11, the starting point of the steel wire W1 is that of the PC culvert 10A at the start position. At the time of connection, it is fixed to the point anchoring device 30A, and the end point of the steel wire W1 is fixed to the end point fixing device 20 of the PC culvert 10C at the end position while the steel wire W1 is tensioned. A third step of bringing the PC culvert group G1 into close contact; A fourth step of coupling another viewpoint fixing device 30 to an endpoint fixing device 20 in which the end point of the steel wire W1 is fixed; A fifth step of sequentially arranging a second PC culvert group G2 in the first PC culvert group G1; And After inserting the steel wire (W2) through the steel wire through hole (10a) and the pipe 11 side of the second PC culvert group (G2), and performing the same process as the third process to the second PC culvert group ( PC culvert construction method comprising a sixth step of connecting G2) in close contact with the first culvert group (G1).
KR1020090008592A 2009-02-03 2009-02-03 Connecting Structure and Connecting method for Precast Concrete Box Culvert KR101021184B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922297A (en) * 2010-08-23 2010-12-22 上海广联建设发展有限公司 Synchronous towing, pushing and tunneling device of underground box culvert or pipeline construction
KR101464631B1 (en) * 2014-06-05 2014-11-24 주식회사 대산이엔씨 Tendon Anchoring cone and method for connecting culverts
JP2018053469A (en) * 2016-09-27 2018-04-05 清水建設株式会社 Tension force introduction method for tension member

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CN103216042A (en) * 2013-04-18 2013-07-24 陈灿斌 Pin rod type mechanical connecting/anchoring method and device
KR101358830B1 (en) * 2013-07-02 2014-02-11 주식회사 지구코퍼레이션 Connecting structure of precast box culverts

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
JPS59445A (en) * 1982-06-25 1984-01-05 日本ゼニスパイプ株式会社 Construction of arch shaped culvert
KR950012460B1 (en) * 1992-02-22 1995-10-18 김선자 Connecting method of precast concrete
KR19980063010U (en) * 1997-04-10 1998-11-16 권대영 Reinforcing Bar Sleeve
KR200443531Y1 (en) * 2007-06-04 2009-02-20 이정오 Precast Concrete Box Culvert

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922297A (en) * 2010-08-23 2010-12-22 上海广联建设发展有限公司 Synchronous towing, pushing and tunneling device of underground box culvert or pipeline construction
KR101464631B1 (en) * 2014-06-05 2014-11-24 주식회사 대산이엔씨 Tendon Anchoring cone and method for connecting culverts
JP2018053469A (en) * 2016-09-27 2018-04-05 清水建設株式会社 Tension force introduction method for tension member

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