KR102484259B1 - Two-way rapid construction pc cullvert and its construction method - Google Patents

Abstract

Disclosed is a two-way rapid construction type PC culvert. The two-way rapid construction type PC culvert according to the present invention comprises: a PC culvert segment aggregate; a key segment provided between one end part of one side PC culvert segment aggregate and the other end part of the other side PC culvert segment aggregate; and a shear resistance connection unit provided to combine the PC culvert segment aggregate and the key segment without shifting up, down, left, and right. Provided are the two-way rapid construction type PC culvert, which prevents displacement in the up, down, left, and right directions, and a construction method thereof.

Description

Bidirectional rapid construction type PC culvert and its construction method {TWO-WAY RAPID CONSTRUCTION PC CULLVERT AND ITS CONSTRUCTION METHOD}

The present invention relates to a bi-directional rapid construction type PC culvert and a construction method thereof, which prevents the key segment provided between the PC culvert segments from shifting upward, downward, left, and right during simultaneous construction of the PC culvert in both directions. It is about type PC culvert and its construction method.

Instead of constructing culvert structures such as sewage culverts, power conduits, common culverts, passage boxes, etc., prefabricated precast concrete box culverts are manufactured by precasting at the factory, transported to the site, and assembled instead of using cast-in-place concrete. is becoming widespread.

In the conventional culvert, a recessed part was installed at one end of the culvert and a convex part was installed at the other end, so that adjacent culverts were inserted and combined with each other, and the PC steel wire was tensioned and closely connected. However, since only a simple water stop material is installed at the connection of the culvert and there is no other measure such as filling the gap with mortar to fill the gap, leakage occurs through the gap between the culvert and the foundation ground subsides, resulting in frequent defects such as deformation of the vertical alignment of the waterway. It caused.

Referring to FIG. 1, the precast concrete box culvert (hereinafter referred to as PC culvert) according to the prior art was constructed in both directions to increase workability.

That is, after leveling by sand laying, setting the PC culvert segments (S1, S2) in the right direction, and then tensioning and fixing with the PC steel wire (w) to adhere the PC culvert segments (S1, S2). After setting the PC culvert segments (S3, S4) in the left direction in the same way, the PC culvert segments (S3, S4) are closely adhered by tensioning and fixing with the PC steel wire (w).

A key segment (K), which is a kind of PC culvert, is provided between the PC culvert segments constructed in both directions. The problem that the key segment (K) is vulnerable to displacement in the up/down or left/right direction because it has no contact means there was

Republic of Korea Patent No. 10-0478489 (2005.03.28.)

The present invention was made to solve the problems of the prior art described above, and when the key segment and the PC culvert segments are in close contact, there is no displacement in the up, down, left, and right directions, a bi-directional rapid construction type PC culvert and It is to provide the construction method.

The bidirectional rapid construction PC culvert according to the embodiment of the present invention for solving the above-described technical problem is a bidirectional rapid construction PC culvert constructed simultaneously in both directions, including PC culvert segments adhered by strands A PC culvert segment assembly including a PC culvert segment assembly on one side and a PC culvert segment assembly on the other side constructed in the opposite direction to the one-side PC culvert segment assembly; A key segment provided between one end of the one-side PC culvert segment assembly and the other end of the other PC culvert segment assembly; And a shear resistance connecting portion provided to couple the PC culvert segment assembly and the key segment without shifting upward, downward, left, or right when coupled.

The shear resistance connection unit connects the key segment and the end of the PC culvert segment while being fixed by grouting after being inserted into and seated in the mortar groove provided at the end edge of the key segment and the PC culvert segment.

The shear resistance connecting portion is inserted into the mortar groove, rotated by 90 degrees, unfolded to increase its width, and then seated at a preset position.

The shear resistance connection unit, a plate-shaped shear resistance unit whose width can be adjusted by hinge connection and rotation; A plurality of steel pipes provided on the longitudinal center line of the plate-shaped shear resistance unit; and a steel rod provided to pass through the plurality of steel pipes and changing the width of the plate-shaped shear resistance portion by movement in the direction of the center line in the longitudinal direction.

The shear resistance connection part may further include a wing-type nut provided to be spaced apart from the plate-type shear resistance part and to set a position of the plate-type shear resistance part in the mortar groove by penetrating the steel bar.

When the mortar groove is provided vertically, the wing-shaped nut is set on the upper surface of the key segment and the PC culvert segment, and when the mortar groove is provided horizontally, the wing-type nut is set on the key segment and the PC culvert segment. It is characterized in that it is set on the side of the culvert segment.

The steel pipe may include a lower steel pipe provided under the plate-shaped shear resistance portion; an upper steel pipe provided above the plate-shaped shear resistance unit; and a central steel pipe provided between the lower steel pipe and the upper steel pipe, wherein the length of the upper steel pipe is longer than that of the lower steel pipe and the central steel pipe.

It is characterized in that the upper and lower parts of the upper steel pipe and the upper and lower parts of the lower steel pipe are disposed with fixing parts provided to fix the width of the plate-shaped shear resistance part.

The bidirectional rapid construction PC culvert construction method according to another embodiment of the present invention for solving the above-described technical problem is a one-side PC culvert segment assembly including PC culvert segments and a direction opposite to the one-side PC culvert segment assembly. A first construction step of closely adhering the PC culvert segment assembly including the other PC culvert segment assembly to be constructed by a strand wire; A second construction step of providing a key segment between one end of the one-side PC culvert segment assembly and the other end of the other PC culvert segment assembly; And a third construction step of combining the PC culvert segment assembly and the key segment by setting and grouting the shear resistance connection so that the PC culvert segment assembly and the key segment are coupled without misalignment in the upper, lower, left, and right directions. includes;

The third construction step is the step of inserting the shear resistance connection into the culvert installation groove and then rotating it 90 degrees; spreading the plate-shaped shear resistance part by relative movement of the steel bar passing through the steel pipe provided in the shear resistance connection part; fixing the length and width of the plate-shaped shear resistance unit by fixing the uppermost and lowermost portions of the steel bar with fixing units; setting the plate-shaped shear resistance unit to come to a preset position in the mortar groove; Mounting and fixing the key segment and the top of each PC culvert segment by fastening a wing-shaped nut to the upper part of the steel bar; and grouting the inside of the mortar groove.

According to the present invention, when a key segment occurs due to simultaneous construction in both directions, a shear resistance connection unit can be provided so that there is no displacement in the upper, lower, left, and right directions when connecting the key segment and the PC culvert segment, and the shear resistance connection unit 45 It also exhibits shear resistance as a steel material against cracks, so it is possible to prevent lateral (left and right) displacement between the key segment and each PC culvert segment.

1 is a schematic diagram showing a two-way PC culvert construction method according to the prior art;
2 is a schematic diagram showing a bi-directional rapid construction PC culvert according to an embodiment of the present invention;
Figure 3a is a detailed view specifically showing each part of the shear resistance connecting portion according to the first embodiment of the present invention;
Figure 3b is a detailed view specifically showing each part of the shear resistance connecting portion according to the second embodiment of the present invention;
Figure 4 is a flow chart showing in detail the construction method of the shear resistance connection,
5 is a conceptual diagram showing that a shear resistance connection unit and a PC base plate are provided according to the present invention;
6 is a conceptual diagram showing that the shear resistance connection unit according to the present invention is provided in a vertical mortar groove and a horizontal mortar groove;
7 is a conceptual diagram showing the operation of the shear resistance connection unit according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

Hereinafter, with reference to the drawings, a bidirectional rapid construction type PC culvert and its construction method according to the present invention will be looked at in detail.

Figure 2 is a schematic diagram showing a two-way rapid construction type PC culvert according to an embodiment of the present invention, Figure 3a is a detailed view specifically showing each part of the shear resistance connection according to the first embodiment of the present invention, Figure 3b is a detailed view specifically showing each part of the shear resistance connection unit according to the second embodiment of the present invention, Figure 4 is a flow chart showing in detail the construction method of the shear resistance connection unit, Figure 5 is the shear resistance connection unit according to the present invention 6 is a conceptual diagram showing that the shear resistance connection unit according to the present invention is provided in the vertical mortar groove and the horizontal mortar groove, and FIG. 7 shows the operation of the shear resistance connection unit according to the present invention. It is a conceptual diagram that represents

The two-way rapid construction type PC culvert according to the present invention includes a PC culvert segment assembly (S1. S2, S3, S4), a key segment (K), and a shear resistance connection (100).

PC culvert segment assembly (S1, S2, S3, S4) is one side PC culvert segment assembly (S1, S2) including PC culvert segments and the other side constructed in the opposite direction to one side PC culvert segment assembly (S1, S2) It includes PC culvert segment aggregates (S3, S4).

General culverts are constructed by connecting PC culvert segments in one direction, but the two-way rapid construction PC culvert according to the present invention connects PC culvert segments in both directions centering on the key segment (K) for rapid construction. is going to build. At this time, the PC culvert segments are closely adhered by the strand wire (w), and the strand wire (w) is fixed by the fixing parts (J1, J2).

The key segment (K) is made of PC culvert segments and has a length corresponding to the separation distance between one end of the PC culvert segment assembly (S1, S2) on one side and the other end of the other PC culvert segment assembly (S3, S4) on the other side. , The key segment (K) cross section is formed to correspond to the cross section of one end of one PC culvert segment assembly (S1, S2) and the other end of the other PC culvert segment assembly (S3, S4).

Referring to Figure 6, the cross section of the key segment (K) is provided. Mortar grooves H1 and H2 are provided at the end edge of the key segment K, and the mortar grooves H1 and H2 are vertical mortar grooves H1 and horizontal mortar grooves that are horizontal. (H2).

The shear resistance connecting parts 100 and 200 are provided so as to combine the PC culvert segment aggregates (S1, S2, S3, S4) and the key segment (K) without shifting up, down, left, and right.

Referring to FIG. 2, the shear resistance connection part 100 is inserted into the mortar groove H provided on the edge of the key segment K and the PC culvert segments S2 and S3, and then secured by grouting while the key segment is fixed. It is to connect the ends of the segment (K) and the PC culvert segments (S2, S3).

The shear resistance connector 100 is inserted into the mortar groove H with its width minimized, rotated 90 degrees, unfolded to increase its width, and then seated at a preset position.

In FIG. 2, the shear resistance connecting portion 100 before unfolding is shown on the left, and the shear resistance connecting portion 100' after unfolding is shown on the right.

Referring to the lower portion of FIG. 2 and FIG. 6, since the mortar grooves H, H1, and H2 are located in the center of the end rim, when the shear resistance connecting portion 100 is first inserted, the mortar grooves H, H1, and H2 Since the space where this is not provided is narrow, the shear resistance connection unit 100 is inserted into the narrow space at the ends of the key segment (K) and the PC culvert segments (S2, S3).

Thereafter, after rotating the plate-type shear resistance parts 121a, 121b, 122a, 122b of the shear resistance connection part 100 by 90 degrees around the steel bar 111, the plate-type shear resistance part 121a by the movement of the steel bar 111 , 121b, 122a, 122b) to increase the width.

In this case, preferably, the plate-shaped shear resistance parts 121a, 121b, 122a, 122b are mortar grooves H and H1 provided between the key segment K and the ends of the PC culvert segments S2 and S3 when viewed in plan view. , H2) so that both ends of the plate-shaped shear resistance parts 121a, 121b, 122a, 122b are adjacent to both ends of the mortar grooves H, H1, and H2 in the longitudinal direction of the PC culvert segments S2 and S3. prepared to be placed.

The shear resistance connecting portion 100 includes plate-type shear resistance parts 121a, 121b, 122a, and 122b whose width can be adjusted by hinge connection and rotation, and the length of the plate-type shear resistance parts 121a, 121b, 122a, and 122b. A plurality of steel pipes (123, 124, 127) and steel pipes (123, 124, 127) provided on the directional centerline are provided to pass through the plate-shaped shear resistance parts (121a, 121b, 122a, 122b) by movement in the direction of the longitudinal centerline ) includes a steel bar 111 that changes the width of

The plate-shaped shear resistance parts 121a, 121b, 122a, and 122b are disposed adjacent to both ends of the mortar grooves H, H1, and H2 when fully extended, but have a predetermined length of the mortar grooves H, H1, and H2. It can be arranged longitudinally.

As shown in FIGS. 3A and 3B, the plate-shaped shearing resistors 121a, 121b, 121c, 121d, 122a, and 122b are provided in a plate shape, but are hinged at the center and both ends. Plate-shaped shearing resistors 121a, 121b provided to be connected , 121c, 121d, 122a, 122b).

As shown in FIG. 7, the plate-shaped shear resistors 121a', 121b', 121c', 121d', 122a', and 122b' are end plate-shaped shear resistors 121a', 121b', 122a', and 122b' provided at both ends. ) and a plurality of central plate-shaped shear resistance portions 121c' and 121d' provided between the end plate-shaped shear resistance portions 121a', 121b', 122a', and 122b'.

The end plate-shaped shearing resistors 121a', 121b', 122a', and 122b' may be provided with half the length of the central plate-shaped shearing resistors 121c' and 121d', and hinge holes may be provided at both ends. there is.

As shown in (c) of FIG. 7, the end plate-shaped shearing resistors 121a', 121b', 122a', and 122b' may be provided without irregularities on the edges, but in order to more easily combine with the mortar to be grouted. It may be provided in a concavo-convex shape. Although not shown, it is also possible that the edge portion of the plate-shaped shear resistance unit of FIGS. 3a, 3b, and 7 is provided in a concavo-convex shape.

The steel pipes 123, 124, and 127 are provided on the center line in the longitudinal direction of the plate-shaped shear resistance parts 121a, 121b, 121c, 121d, 122a, and 122b, and 122b), the upper steel pipe 127, the lower steel pipe 123, and the upper steel pipe ( 127) and a plurality of central steel pipes 124 provided between them.

In the case of FIG. 7, although the steel pipes 123, 124, and 127 are omitted for convenience of description, the upper and lower parts of the plate-shaped shear resistance parts 121a', 121b', 121c', 121d', 122a', and 122b' A steel pipe may be provided in the central portion.

The length of the upper steel pipe 127 is provided to be longer than the lengths of the lower steel pipe 123 and the central steel pipe 124, and the upper and lower parts of the upper steel pipe 127 and the upper and lower parts of the lower steel pipe 123 have the plate-shaped shear A fixing part (nut, washer) provided to fix the width of the resistance part is disposed.

The reason why the upper steel pipe 127 is provided to be longer than the lower steel pipe 123 or the central steel pipe 124 is that the key segment (K) where the mortar groove (H) is not provided as shown in (a) and (d) of FIG. ) by providing an upper steel pipe 127 from the upper end of the mortar groove (H) to the center of the intersecting plate-shaped shear resistance parts 122a and 122b formed inside the mortar groove H, thereby stably guiding the steel bar 111 and reducing the width Fix the width of the plate-shaped shear resistance parts (121a, 121b, 121c, 121d, 122a, 122b) to be fixed with nuts (N3, N4) and washers (W3, N4), and the shear resistance connection part (100) at the desired position ) to set.

Referring to (b) of FIG. 3A, the plate-shaped shear resistance parts 121a, 121b, 121c, 121d, 122a, and 122b are formed by nuts N1 and N2 and washers W1 and N2 on the upper and lower parts of the lower steel pipe 123, respectively. The width can be fixed, and the length of the shear resistance connecting portion 100 can be set.

As shown in FIGS. 3A and 3B , the lower steel pipe 123 may be coupled to the central hinge portion of the intersecting plate-shaped shear resistance portions 121a and 121b by means of a pin P.

As shown in FIGS. 3A and 3B , the upper steel pipe 127 may be coupled to the central hinge portion (center hole) of the plate-shaped shear resistance portions 122a and 122b crossing each other by a pin P.

Each steel pipe (123, 124, 127) is welded to the plate-shaped shear resistance parts (121a, 121b, 121c, 121d, 122a, 122b), and the plate-shaped shear resistance parts (121a, 121b, 121c, 121d, 122a) are welded by pins (P). , 122b) is inserted into the central hinge part (center hole), and an E-ring may be provided at the end of the pin to prevent separation, although not shown.

The steel bar 111 may preferably be provided with a bolt into which a nut can be inserted, and the steel bar 111 includes an upper steel pipe 127, a lower steel pipe 123, and an upper steel pipe 127 and a lower steel pipe 123 ) By moving in one direction through a plurality of central steel pipes 124 provided between the plate-shaped shear resistors 121a, 121b, 121c, 121d, 122a, and 122b rotated by the hinge, the plate-shaped shear resistors 121a, 121b, 121c, 121d, 122a, 122b) can be adjusted in width.

The shear resistance connecting portion 100 may be provided with a wing-shaped nut 113 provided to set the position of the plate-shaped shear resistance portion 100 in the mortar groove H. The wing-type nut 113 may pass through the steel bar 111 and be set at a preset position. Wing nut 113 is preferably formed to be mounted on the upper surface of the key segment (K) and the PC culvert segments (S2, S3).

Referring to FIG. 5, the shear resistance connection unit 100 according to the embodiment of the present invention may be provided so that there is no displacement in the left and right directions when connecting the key segment K and the PC culvert segments S2 and S3, A PC base plate (B) may be provided under the key segment (K) and the PC culvert segments (S2, S3) so that there is no displacement in the upward and downward directions.

Mortar backup materials (m1, m2, m3) are provided on the upper part of the PC base plate (B) at the boundary between the key segment (K) and the PC culvert segments (S2, S3) so that mortar liquid does not escape during mortar grouting. can

Referring to FIG. 6, when connecting the key segment K and the PC culvert segments S2 and S3, the shear resistance connection part 100 may be provided in the mortar groove H1 so that there is no displacement in the left and right directions. , The shear resistance connecting portion 200 may be provided in the mortar groove H2 so that there is no displacement in the downward direction.

The shear resistance connection unit 200 may be provided to correspond to the shear resistance connection unit 100, but as the shear resistance connection unit 100 is provided vertically, the wing-type nut 113 is provided with the key segment K and the PC culvert segment ( While it can be mounted on the upper surfaces of S2 and S3) so that only one wing nut 113 can be provided, structures corresponding to the wing nut 113 must be provided at both ends of the shear resistance connector 200, respectively. do. At this time, the shear resistance connecting portion 200 may be provided so that there is no displacement in the up and down directions when connecting the key segment (K) and the PC culvert segments (S2, S3) like the PC base plate (B).

Referring to Figure 7, the two-way rapid construction PC culvert according to the present invention is a shear resistance connection (100) in a state where the key segment (K) and the PC culvert segments (S2, S3) are arranged as shown in (b) of FIG. After being inserted between the key segment (K) and the PC culvert segments (S2, S3) so that the width of ) is minimized, it is rotated at 90 degrees and passes through the steel pipes (123, 124, 127) provided in the shear resistance connection (100) The plate-shaped shear resistance parts 121a' and 121b' are provided so as to be unfolded by the relative movement of the steel bar 111.

The unfolding of the plate-shaped shearing resistors 121a' and 121b' means that the mortar groove between the key segment K and each PC culvert segment S2 and S3 is caused by the hinge rotation of the plate-shaped shearing resistors 121a' and 121b'. In (H), it means that the width is expanded when viewed in plan view in the longitudinal direction of the PC culvert segments (S2, S3). At this time, the length of the shear resistance connecting portion 100 is relatively reduced.

As shown in the left side of FIG. K) and each PC culvert segment (S2, S3), but it was not possible to catch the displacement in the lateral direction (left and right direction), but as shown on the right side of FIG. When unfolded by a preset width, the plate-type shear resistance parts 121a' and 121b' are arranged above the crack prediction line to prevent transverse (left and right) misalignment between the key segment (K) and each PC culvert segment (S2, S3) be able to catch

That is, the shear resistance connection part 100 according to the present invention, as shown on the right of FIG. ) in the lateral direction (left-right direction) can be prevented.

The bidirectional rapid construction PC culvert construction method according to the embodiment of the present invention is in the opposite direction to the one-side PC culvert segment assembly (S1, S2) and the one-side PC culvert segment assembly (S1, S2) including PC culvert segments. In a state where the PC culvert segment aggregates (S1, S2, S3, S4) including the other PC culvert segment aggregates (S3, S4) to be constructed are provided on the leveled ground (G), they are adhered and fixed by the strand wire (w) The first construction phase begins.

Then, the second construction step of providing the key segment K between one end of the PC culvert segment assembly S1 and S2 on one side and the other end of the other PC culvert segment assembly S3 and S4 on the other side is initiated.

Then, when the PC culvert segment assembly (S1, S2, S3, S4) and the key segment (K) are combined, the shear resistance connection part (100) is set and grouted to combine the PC culvert segment (K) so that it does not shift up, down, left, and right. PC culvert A third construction step of combining the segment aggregates S1, S2, S3, and S$ with the key segment K is initiated.

More specifically, in the third construction step, after inserting the shear resistance connection part 100 into the culvert installation groove as shown in FIG. 4 (a) and then rotating it at 90 degrees, the shear resistance connection part ( The step of unfolding the plate-shaped shear resistance parts 121a, 121b, 121c, 121d, 122a, 122b by the relative movement of the steel bar 111 penetrating the steel pipes 123, 124, and 127 provided in 100 is initiated.

Thereafter, as shown in (c) of FIG. 4, the uppermost and lowermost portions of the steel bar 111 are fixed by fixing parts (nuts and washers) to form plate-type shear resistance parts Plate-type shear resistance parts 121a, 121b, 121c, 121d, 122a, 122b The step of fixing the length and width (expansion width) of is started, and the step of setting the plate-shaped shear resistance parts (121a, 121b, 121c, 121d, 122a, 122b) to come to a preset position of the mortar groove (H1), A step of mounting and fixing the wing-shaped nut 113 to the top of the steel bar 111 to the top of the key segment K and each PC culvert segment S2 and S3 is provided.

The wing-shaped nut 113 may be welded to the steel rod 111 or fixed in position by a fixing means, and may be removed after grouting is completed.

Then, the step of grouting the inside of the mortar groove H1 is started.

Then, as shown in FIG. 5, when the key segment (K) and the PC culvert segments (S2, S3) are connected, the PC is located at the bottom of the key segment (K) and the PC culvert segments (S2, S3) so that there is no displacement in the upward and downward directions. A base plate (B) may be provided.

As shown in FIG. 6, the shear resistance connection part 200 may be provided in the mortar groove H2 so that there is no displacement in the upward and downward directions when the key segment K and the PC culvert segments S2 and S3 are connected.

According to the present invention, when a key segment occurs due to simultaneous construction in both directions, a shear resistance connection unit can be provided so that there is no displacement in the upper, lower, left, and right directions when connecting the key segment and the PC culvert segment, and the shear resistance connection unit 45 It also exhibits shear resistance as a steel material against cracks, so it is possible to prevent lateral (left and right) displacement between the key segment and each PC culvert segment.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

S1, S2, S3, S4: PC culvert segment aggregate
K: key segment
100: shear resistance connection
200: shear resistance connection

Claims (10)

In the two-way rapid construction PC culvert, which is simultaneously constructed in both directions,
PC culvert segment assembly including one side PC culvert segment assembly including PC culvert segments adhered by strands and the other PC culvert segment assembly constructed in the opposite direction to the one side PC culvert segment assembly;
A key segment provided between one end of the one-side PC culvert segment assembly and the other end of the other PC culvert segment assembly; and
A shear resistance connection portion provided to couple the PC culvert segment assembly and the key segment without misalignment in the upper, lower, left, and right directions; including,
The shear resistance connection part,
A plate-shaped shear resistance unit whose width and length can be adjusted by hinge connection and rotation;
A plurality of steel pipes provided on the longitudinal center line of the plate-shaped shear resistance unit; and
It is provided to pass through the plurality of steel pipes, and a steel rod for changing the width of the plate-shaped shear resistance portion by movement in the direction of the longitudinal centerline. According to claim 1,
The shear resistance connecting portion is inserted into the mortar groove provided at the end edge of the key segment and the PC culvert segment and secured by grouting while connecting the key segment and the end of the PC culvert segment. Direction Rapid construction type PC culvert. According to claim 2,
The shear resistance connection is inserted into the mortar groove, rotated at 90 degrees, and then spread to increase its width, and then seated in a preset position. delete According to claim 1,
The shear resistance connecting portion is spaced apart from the plate-type shear resistance portion and the steel rod penetrates the key segment and the wing-type nut provided so that the position of the plate-type shear resistance portion is set in the mortar groove provided at the end edge of the PC culvert segment. Bi-directional rapid construction PC culvert, characterized in that it further comprises. According to claim 5,
When the mortar groove is provided vertically, the wing-shaped nut is set on the upper surface of the key segment and the PC culvert segment, and when the mortar groove is provided horizontally, the wing-type nut is set on the key segment and the PC culvert segment. A two-way rapid construction type PC culvert, characterized in that it is set on the side of the culvert segment. According to claim 1,
The steel pipe,
a lower steel pipe provided under the plate-shaped shear resistance unit;
an upper steel pipe provided above the plate-shaped shear resistance unit; and
Including; a central steel pipe provided between the lower steel pipe and the upper steel pipe,
The length of the upper steel pipe is provided to be longer than the length of the lower steel pipe and the central steel pipe. According to claim 7,
The upper and lower parts of the upper steel pipe and the upper and lower parts of the lower steel pipe are provided with fixing parts provided to fix the width of the plate-shaped shear resistance part. In the two-way rapid construction type PC culvert construction method that is simultaneously constructed in both directions,
A PC culvert segment assembly including a PC culvert segment assembly on one side including PC culvert segments and a PC culvert segment assembly on the other side constructed in the opposite direction to the one side PC culvert segment assembly by a strand A first construction step of adhering;
A second construction step of providing a key segment between one end of the one-side PC culvert segment assembly and the other end of the other PC culvert segment assembly; and
A third construction step of combining the PC culvert segment assembly and the key segment by setting and grouting the shear resistance connection so that the PC culvert segment assembly and the key segment are coupled without misalignment in the upper, lower, left, and right directions; Including,
The third construction stage,
Inserting the shear resistance connection into the culvert installation groove and then rotating it 90 degrees;
spreading the plate-shaped shear resistance part by relative movement of the steel bar passing through the steel pipe provided in the shear resistance connection part;
fixing the length and width of the plate-shaped shear resistance unit by fixing the uppermost and lowermost portions of the steel bar with fixing units;
setting the plate-shaped shear resistance unit to come to a preset position in the mortar groove;
Mounting and fixing the key segment and the top of each PC culvert segment by fastening a wing-shaped nut to the upper part of the steel bar; and
The step of grouting the inside of the mortar groove; a two-way rapid construction type PC culvert construction method comprising the. delete

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