KR20200116874A - Prefabricated precast pier and construction method thereof - Google Patents

Abstract

The present invention relates to a prefabricated precast pier comprising: a pile (100) installed upwards from the ground surface; a coping bracket (200) including a cap (210) which has a hollow first insertion hole (212) with an open lower side, and a support plate (220) which is formed on a lower end of the cap (210) to protrude towards the outside in a radial direction along an outer circumference of the cap (210); and a coping (300) which has a hollow second insertion hole (310) with an open lower side. An upper end unit of the pile (100) is inserted into the first insertion hole (212), and the cap (210) is inserted into the second insertion hole (310). A lower surface of the coping (300) is settled on the support plate (220). An upper end unit of the pile (100) is inserted into the second insertion hole (310). Accordingly, the coping (300) is supported in a stable manner by a minimum simple configuration such that the manufacturing cost and construction cost of each component can be reduced, and the construction period can be reduced as well.

Description

Precast pier and construction method thereof {PREFABRICATED PRECAST PIER AND CONSTRUCTION METHOD THEREOF}

The present invention relates to a prefabricated precast pier and a construction method thereof, and more particularly, to a prefabricated precast pier capable of reducing manufacturing cost and construction cost and shortening the construction period, and a construction method thereof.

The installation of bridges in the form of piers is increasing to develop/repair ports or fishing port facilities, or to create marinas, marine parks, and coastal walkways. The structure and construction method of the precast precast bridge can be used for the pier type bridge.

Here, the prefabricated precast bridge is the pre-fabrication of elements constituting the bridge such as piles, copings, girders, and slabs, and is completed by collectively installing them on site. By using the member, it can be constructed within a short period of time and the process can be minimized. The related prior art is as follows.

Korean Patent Registration No. 10-1939132 relates to a modular ramen structure and a construction method thereof, comprising a plurality of steel wires installed along the longitudinal direction of the girder body, and a prestress having a predetermined length in the central portion in the longitudinal direction of the girder body. Introduction; And a prestressed partial introduction part provided at both ends of the prestressed introduction part in a lengthwise direction, and including a loop reinforcement exposed at one end or both ends of the girder body, wherein the loop reinforcement is longitudinally outward from the end of the girder body It is extended and bent in the upper direction, and is extended inward in the longitudinal direction toward the upper part of the girder body to be loop-joined.

However, this construction method has a problem that the manufacturing cost and construction cost increase and the construction period is lengthened.

Registered Patent Publication No. 1939132

The present invention was conceived to solve the above-described problems, and embodiments of the present invention provide a prefabricated precast pier capable of reducing manufacturing cost and construction cost and shortening the construction period and a construction method thereof. There is a purpose.

In addition, embodiments of the present invention is to provide a prefabricated precast pier and a construction method thereof that can be easily corrected in the construction process despite errors in manufacturing or construction.

In addition, an object of the present invention is to provide an assembly-type precast pier and a construction method thereof that strongly binds a pile and a coping to be assembled.

In addition, embodiments of the present invention is to provide a prefabricated precast pier and a construction method thereof in which the support for coping installed on a pile is strengthened.

In addition, embodiments of the present invention is to provide a prefabricated precast pier and a construction method for improving the support, stability, and durability of the bridge.

In addition, an object of the present invention is to provide a prefabricated precast pier capable of easily installing coping on a pile and a method of construction thereof.

The present invention in order to solve the above-described problem, the file 100 installed upward from the ground; Includes a cap 210 in which a hollow first insertion hole 212 is formed with an open lower part and a support plate 220 protruding radially outward along the outer circumference of the cap 210 at the lower end of the cap 210 Coping bracket 200 configured by; And a coping 300 in which a hollow second insertion hole 310 is formed with an open lower portion thereof.

The upper end of the pile 100 is inserted into the first insertion hole 212, the cap 210 is inserted into the second insertion hole 310, and the lower surface of the coping 300 is the support plate 220 And the upper end of the pile 100 is inserted and positioned inside the second insertion hole 310.

In one embodiment, a grating 216 is formed on the upper surface of the cap 210, or a through hole 214 is formed on the upper surface or side of the cap, and the through hole 214 is formed through the grating 216 or the through hole 214. The first filler is poured into the first insertion hole 212.

In one embodiment, a packing member 260 is provided at the lower end of the coping bracket 200.

In one embodiment, the pile 100 has a hollow portion 110 with an open upper portion, and the hollow portion 110 has a predetermined height from the upper end of the hollow portion 110 and a hollow portion 110 below the hollow portion 110 Filling finish plate 120 is installed to block.

In one embodiment, a coupling rod 122 protruding upward is formed on the upper surface of the filling finish plate 120.

In one embodiment, the cap 210 includes a pair of bolts 270 installed opposite to each other through both sides, and one end of the bolt 270 is the pile inserted into the first insertion hole 212 ( 100).

In one embodiment, the bolt 270 is installed opposite to the front and rear and left and right sides of the cap 210.

In one embodiment, the coping bracket 200 includes an extension 230 extending downward from the lower end of the cap 210; And a first horizontal surface portion 242 installed in a radial direction on a lower surface of the support plate 220, a first vertical surface portion 244 installed in a vertical direction on an outer peripheral surface of the extension portion 230, and the first horizontal surface portion ( It further includes a first reinforcing rib 240 configured to include a first connecting portion 246 connecting the 242 and the first vertical surface portion 244 to each other.

A plurality of the first reinforcing ribs 240 are disposed along the circumferential direction around the central axis of the extension part 230.

In one embodiment, the coping bracket 200 includes a second horizontal surface portion 252 radially installed on the upper surface of the support plate 220, and a second vertical surface vertically installed on the outer peripheral surface of the cap 210 It further includes a second reinforcing rib 250 comprising a portion 254 and a second connection portion 256 connecting the second horizontal surface portion 252 and the second vertical surface portion 254.

A plurality of the second reinforcing ribs 250 are disposed along the circumferential direction around the central axis of the cap 210.

In one embodiment, the distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is the side of the support plate 220 from the central axis of the cap 210 It is smaller than the distance to the section (d1).

In one embodiment, the distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is from the central axis of the extension portion 230 to the first horizontal surface portion ( It is less than the distance d2 to the radially outer end of 242).

In one embodiment, the upper portion of the second insertion hole 310 is open.

In one embodiment, a second filler is poured into the second insertion hole 310 through the open upper part.

In one embodiment, the height of the upper surface of the coping 300 corresponds to the height of the upper surface of the cap 210 inserted into the second insertion hole 310.

In one embodiment, the second insertion hole 310 includes an upper region 312 having a constant cross-sectional area and a lower region 314 having a larger cross-sectional area than the upper region 312 and decreasing upwardly. It consists of including.

In one embodiment, the prefabricated precast pier includes a plurality of the pile 100, the coping bracket 200, and the coping 300, respectively, and the plurality of piles 100 includes the plurality of coping brackets ( Each of the caps 210 of 200) is inserted, and a plurality of second insertion holes 310 are formed in the plurality of copings 300, respectively.

At least some of the second insertion holes 310 of the plurality of second insertion holes 310 have an open top, and at least one of the second insertion holes 310 formed in each of the copings 300 are different copings. It is disposed to be in vertical communication with the second insertion hole 310 formed in 300.

At least some of the plurality of caps 210 are respectively inserted through the plurality of second insertion holes 310 arranged in communication at a time.

In one embodiment, the coping 300 has the second insertion hole 310 formed at one end and the other end, respectively, and one end or the other end of the coping 300 is The second insertion holes 310 formed in the two copings 300 by being stacked and disposed with the end or one end in the vertical direction are in communication with each other.

The stacked one end and the other end are formed to be stepped inwardly upward or downwardly in the coping 300 and the other coping 300 so as to mesh with each other.

A value obtained by summing the thicknesses of one end portion and the other end portion arranged in the stack corresponds to the thickness of the coping 300.

In addition, the present invention in order to solve the above-described problem, the file installation step (S610) of installing the file 100 on the ground; Coping bracket installation step (S620) of inserting the upper end of the pile 100 into the first insertion hole 212; Coping bracket fixing step (S630) of pouring a first filler into the first insertion hole 212; A coping installation step (S640) of inserting the cap 210 of the coping bracket 200 into the second insertion hole 310; Coping fixing step (S650) of pouring a second filler into the second insertion hole 310; And a slab installation step (S660) of installing the slab 400 on the upper surface of the coping 300.

In one embodiment, in the coping bracket fixing step (S650), the first filler is poured after adjusting the position or slope of the coping bracket 200 by manipulating the bolt 270.

According to embodiments of the present invention, the precast pier is installed upward from the ground pile 100; Includes a cap 210 in which a hollow first insertion hole 212 is formed with an open lower part and a support plate 220 protruding radially outward along the outer circumference of the cap 210 at the lower end of the cap 210 Coping bracket 200 configured by; And a coping 300 in which a hollow second insertion hole 310 is formed with an open lower portion thereof, and an upper end of the pile 100 is inserted into the first insertion hole 212 and the second insertion hole ( 310), the cap 210 is inserted, the lower surface of the coping 300 is seated on the support plate 220, and the upper end of the pile 100 is inserted into the second insertion hole 310 Can be located. Therefore, since the coping 300 is stably supported with a minimal and simple configuration, the manufacturing cost and construction cost of each component can be reduced, and the construction period can be shortened.

According to an embodiment of the present invention, a grating 216 is formed on the upper surface of the cap 210 or a through hole 214 is formed on the upper surface or side surface of the cap, and through the grating 216 or the through hole 214 The first filler may be poured into the 1 insertion hole 212. Accordingly, even if an empty space occurs between the cap 210 and the pile 100 after inserting the pile 100 into the cap 210, the first filler can fill the empty space, so that the coping bracket 200 Can be strongly bound with (100). Further, since the empty space can be filled with the first filler, the size of the cross-sectional area of the first insertion hole 212 can be formed larger than the size of the cross-sectional area of the pile 100, so that the coping bracket 200 Can be installed on the top of the pile 100 at a correct slope or at a correct position.

According to an embodiment of the present invention, a packing member 260 may be provided below the coping bracket 200. Accordingly, it is possible to prevent the first filler from flowing downward.

According to an embodiment of the present invention, a filling finish plate 120 may be installed in the hollow portion 110 to block the hollow portion 110 under a predetermined height from the top of the hollow portion 110. Accordingly, it is possible to prevent the first filler from flowing downward.

According to an embodiment of the present invention, a coupling rod 122 protruding upward may be formed on the upper surface of the filling finish plate 120. Accordingly, since the first filler filled in the hollow part 110 can be combined with the coupling rod 122, the coupling rod 122 can strongly bind the first filler and the file 100. Furthermore, since the first filler is also bound to the coping bracket 100, the coupling rod 122 can strongly bind the pile 100 and the coping bracket 200.

According to an embodiment of the present invention, the cap 210 may have a pair of bolts 270 installed opposite to each other through both sides, and one end of the bolt 270 is inserted into the first insertion hole 212. Can contact 100. Accordingly, in spite of manufacturing or construction errors, the coping bracket 200 may be installed at a correct inclination or may be installed at a correct position.

According to an embodiment of the present invention, the bolt 270 may be installed opposite to the front and rear and left and right sides of the cap 210. Accordingly, the position or slope of the coping bracket 200 can be quickly and accurately adjusted.

According to an embodiment of the present invention, the coping bracket 200 includes an extension 230 extending downward from the lower end of the cap 210; And a first horizontal surface portion 242 installed radially on the lower surface of the support plate 220, a first vertical surface portion 244 and a first horizontal surface portion 242 installed vertically on the outer peripheral surface of the extension portion 230, and A first reinforcing rib 240 configured including a first connecting portion 246 connecting the first vertical surface portion 244 may be further included, and the first reinforcing rib 240 is a center of the extension portion 230 A plurality of pieces may be disposed along the circumferential direction around the axis. Accordingly, the support force of the support plate 220 supporting the coping 300 may be strengthened.

According to an embodiment of the present invention, the distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is the side cross-section of the support plate 220 from the central axis of the cap 210 It may be less than the distance to (d1). Accordingly, even if the second reinforcing rib 250 is provided on the support plate 220, the lower surface of the coping 300 may be stably seated on the support plate 220.

According to an embodiment of the present invention, the distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is from the central axis of the extension portion 230 to the first horizontal surface portion 242 ) May be smaller than the distance d2 to the outer end in the radial direction. Accordingly, since the portion of the support plate 220 on which the lower surface of the coping 300 is seated may be supported by the first reinforcing rib 240, the support force of the support plate 220 supporting the coping 300 may be strengthened. .

According to an embodiment of the present invention, the upper portion of the second insertion hole 310 may be opened, and a second filler may be poured into the second insertion hole 310 through the open upper portion. Accordingly, even if an empty space occurs between the coping 300 and the cap 210 after inserting the cap 210 into the coping 300, the second filler can fill the empty space, so that the coping 300 It can be strongly bound with (200). Furthermore, since the empty space can be filled with the second filler, the size of the cross-sectional area of the second insertion hole 310 can be formed larger than the size of the cross-sectional area of the cap 210, so that the coping 300 is It can be installed at the correct tilt or in the correct position

According to an embodiment of the present invention, the upper side of the second insertion hole 310 may be opened, and the height of the upper surface of the coping 300 is equal to the height of the upper surface of the cap 210 inserted into the second insertion hole 310. Can correspond. Accordingly, it can be easily checked whether the cap 210 is correctly inserted into the second insertion hole 310, and the upper surface of the coping 300 and the upper surface of the cap 210 can support the slab 400 together. Therefore, the support and stability of the pier can be improved.

According to an exemplary embodiment of the present invention, the second insertion hole 310 has a larger cross-sectional area than the upper area 312 and the upper area 312 in which the cross-sectional area is maintained at a constant size, and the lower area 314 has a smaller cross-sectional area toward the top It can be configured to include. Accordingly, since the cap 210 is guided by the lower region 314 with a large cross-sectional area and is inserted from the lower portion of the second insertion hole 310 to the upper portion, the coping 300 can be easily installed on the coping bracket 200. .

According to an embodiment of the present invention, a plurality of second insertion holes 310 may be formed in the coping 300, respectively, and at least a portion of the second insertion holes 310 among the plurality of second insertion holes 310 are upper May be opened, and at least one second insertion hole 310 formed in each coping 300 may be disposed to be in vertical communication with the second insertion hole 310 formed in the other coping 300, and a plurality of At least some of the caps 210 may be inserted through the plurality of second insertion holes 310 respectively disposed to communicate with each other at one time. Accordingly, the coping 300 can be easily extended while being assembled and coupled to the cap 210 in a minimal and simple configuration without a separate coupling member, and since the coping 300 is bound to each other to support the slab 400, Stability and durability can be improved.

According to an embodiment of the present invention, one end of the coping 300 and the other end of the other coping 300 are formed to be stepped from the coping 300 and other copings 300 inwardly A value obtained by summing the thicknesses of one end portion and the other end portion that may be interlocked and disposed in a stack may correspond to the thickness of the coping 300. Accordingly, even if the coping 300 is stacked at the end of the coping 300 and the other coping 300, the surface of the coping 300 may be smoothly connected, so that damage to the coping 300 may be prevented.

According to an embodiment of the present invention, the method of constructing a precast pier is a pile installation step of installing the pile 100 on the ground (S610); Coping bracket installation step of inserting the upper end of the pile 100 into the first insertion hole 212 (S620); Coping bracket fixing step of pouring the first filler into the first insertion hole 212 (S630); A coping installation step of inserting the cap 210 of the coping bracket 200 into the second insertion hole 310 (S640); Coping fixing step (S650) of pouring a second filler into the second insertion hole 310; And it may include a slab installation step (S660) of installing the slab 400 on the upper surface of the coping (300). Therefore, since the pier can be made with a minimal simple process without including a process such as installing a separate connecting member or a connecting member, the manufacturing cost and construction cost of the pier can be reduced, and the construction period can be shortened.

According to an embodiment of the present invention, in the coping bracket fixing step (S650), the position or inclination of the coping bracket 200 is adjusted by manipulating the bolts 270 installed opposite to each other through both sides of the cap 210. 1 Filling material can be poured. Accordingly, in spite of manufacturing or construction errors, the coping bracket 200 can be quickly and easily fixed to the correct inclination or fixed to the correct position.

In addition to the above-described effects, specific effects of the present invention will be described together while describing specific details for carrying out the present invention.

1, 2 and 3 are a perspective view, a front view and a right side view showing a prefabricated precast bridge according to an embodiment of the present invention, and Figs. 4 and 5 are part of the prefabricated precast bridge of Figs. 1 to 3 It is a perspective view and a cross-sectional view showing the configuration, and FIG. 6 is an enlarged view of an enlarged partial configuration of a right end portion of the prefabricated precast bridge of FIGS. 1 to 3.
1 is a perspective view showing an assembled precast bridge according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a pile according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a filling finish plate that can be installed inside the pile of FIG. 2, and FIG. 4 is a filling finish plate of FIG. 3 installed inside the pile of FIG. It is a cross-sectional view showing the state.
5 and 6 are perspective views of a coping bracket according to an embodiment of the present invention, and FIGS. 7 to 9 are plan, bottom and front views of the coping bracket of FIGS. 5 and 6, respectively, and FIG. 10 is a view of FIGS. A cross-sectional view showing a state in which the coping bracket of 9 is installed on the pile of FIG. 4.
11 and 12 are perspective views and plan views illustrating an embodiment of a coping bracket having a grating formed thereon.
13 to 15 are perspective views, plan views, and front views illustrating an embodiment of a coping bracket including a second reinforcing rib.
16 to 18 are perspective views, plan views, and front views illustrating an embodiment of a coping bracket having a bolt.
19 to 22 are a perspective view, a plan view, a bottom view and a front perspective view showing a coping according to an embodiment of the present invention, and FIGS. 23 and 24 are a perspective view and a front perspective view showing a state in which a pile, a coping bracket, and a coping are combined to be.
25 to 27 are perspective views, plan views, and front views showing a slab according to an embodiment of the present invention, and FIGS. 28 and 29 are state diagrams showing a process in which the slab is assembled and coupled with an adjacent slab.
FIG. 30 is a perspective view showing a prefabricated precast bridge according to another embodiment of the present invention, and FIGS. 31 to 42 are a perspective view, a plan view, a bottom view, and a front view showing three types of coping installed in the precast bridge of FIG. 30 It is a perspective view.
43 is a perspective view showing an assembly-type precast bridge according to another embodiment of the present invention, and FIG. 44 is a perspective view showing the coping of FIG. 43, and FIGS. 45 and 46 are states before and after the coping of FIG. 43 is seated on the coping bracket Is a perspective view showing.
47 is a flow chart showing the construction method of the precast bridge assembly according to an embodiment of the present invention.

The present invention is not limited to the embodiments disclosed below, and various modifications may be made and may be implemented in various different forms. However, this embodiment is provided to complete the disclosure of the present invention and to fully inform a person of ordinary skill in the scope of the invention. Therefore, the present invention is not limited to the embodiments disclosed below, and all changes and equivalents included in the technical spirit and scope of the present invention as well as substituting or adding to each other the configuration of any one embodiment and the configuration of another embodiment. To include substitutes.

The accompanying drawings are only for making it easier to understand the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and all changes and equivalents included in the spirit and scope of the present invention It should be understood to include water or substitutes. In the drawings, components may be exaggeratedly large or small in size or thickness in consideration of convenience of understanding, and thus, the scope of protection of the present invention should not be limitedly interpreted.

The terms used in the present specification are only used to describe specific embodiments or examples, and are not intended to limit the present invention. And singular expressions include plural expressions, unless the context clearly indicates otherwise. In the specification, terms such as to include, to consist of, etc. are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification. In other words, in the specification, terms such as to include, to consist of. It is to be understood that it does not preclude the possibility of the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

Terms including ordinal numbers, such as first and second, may be used to describe various elements, but the elements are not limited by the terms. These terms are used only for the purpose of distinguishing one component from another component.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

When a component is referred to as being "above" or "below" another component, it should be understood that other components may exist in the middle as well as those disposed directly above the other component. .

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

For convenience of explanation, the direction in which the bridge extends long is called the length direction, and the direction across the bridge is called the width direction. In addition, a direction in which a slab extends while being assembled and coupled with another slab is referred to as a first direction, and a direction crossing the slab is referred to as a second direction.

In addition, the radial direction means a direction closer to or away from the rotation axis or central axis along a straight line passing through the rotation axis or central axis on a plane perpendicular to the rotation axis or central axis of an object.

The circumferential direction or the circumferential direction means a direction surrounding the rotation axis or the central axis. The outer circumference means the outer circumference, and the inner circumference means the inner circumference. Accordingly, the outer circumferential surface is a surface facing the rotational axis or the central axis, and the inner circumferential surface is a surface facing the rotational axis or the central axis.

The prefabricated precast pier and its construction method disclosed in the following embodiments will be described in more detail with reference to each drawing. Since the technical idea of the present invention is not necessarily limited to the pier, it will be described using the term “bridge”, which is an upper concept including the pier, for convenience of description.

1 is a perspective view showing an assembled precast bridge according to an embodiment of the present invention.

Referring to FIG. 1, the prefabricated precast bridge 10 according to an embodiment may include a pile 100, a coping bracket 200, a coping 300 and a slab 400. We look at each configuration in detail.

[file]

FIG. 2 is a perspective view showing a pile according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a filling finish plate that can be installed inside the pile of FIG. 2, and FIG. 4 is a filling finish plate of FIG. It is a cross-sectional view showing the state.

Referring to FIG. 2, the pile 100 may have a hollow portion 110 with an open top and may correspond to a cylindrical shape. The pile 100 may be made of steel or concrete. In addition, the upper end of the pile 100 may be inserted into the coping bracket 200.

Referring to FIG. 3, a coupling rod 122 protruding upward may be formed on an upper surface of the filling finish plate 120 that can be installed inside the pile 100. Accordingly, since the first filler filled in the hollow part 110 can be combined with the coupling rod 122, the coupling rod 122 can strongly bind the first filler and the file 100. Furthermore, since the first filler is also bound to the coping bracket 100, the coupling rod 122 can strongly bind the pile 100 and the coping bracket 200. In an embodiment, the coupling rod 122 may be a deformed reinforcement.

Referring to FIG. 4, a filling finish plate 120 may be installed in the hollow portion 110 to block the hollow portion 110 under a predetermined height from the top of the hollow portion 110. Accordingly, it is possible to prevent the first filler from flowing downward.

[Coping Bracket]

5 and 6 are perspective views of a coping bracket according to an embodiment of the present invention, and FIGS. 7 to 9 are plan, bottom and front views of the coping bracket of FIGS. 5 and 6, respectively, and FIG. 10 is a view of FIGS. A cross-sectional view showing a state in which the coping bracket of 9 is installed on the pile of FIG. 4.

5 to 9, the coping bracket 200 according to an embodiment may include a cap 210, a support plate 220, an extension part 230, and a first reinforcing rib 240. . The coping bracket 200 may be made of steel.

A hollow first insertion hole 212 with an open lower portion may be formed in the cap 210. The upper end of the pile 100 may be inserted into the first insertion hole 212.

The lower surface of the upper end of the cap 210 may be combined with the upper surface of the pile 100. Accordingly, the coping bracket 200 may stably support the coping 300.

In addition, a through hole 214 may be formed on the top or side of the cap 210. The first filler may be poured into the first insertion hole 212 or the hollow portion 110 (FIG. 2) through the through hole 214. The first filler may correspond to mortar, cement, or epoxy resin.

Accordingly, even if an empty space occurs between the cap 210 and the pile 100 after inserting the pile 100 into the cap 210, the first filler can fill the empty space, so that the coping bracket 200 Can be strongly bound with (100).

Further, since the empty space can be filled with the first filler, the size of the cross-sectional area of the first insertion hole 212 can be formed larger than the size of the cross-sectional area of the pile 100, so that the coping bracket 200 is made despite errors in manufacturing or construction. Can be installed on the top of the pile 100 at a correct slope or at a correct position.

The support plate 220 may be formed to protrude radially outward along the outer periphery of the cap 210 at the lower end of the cap 210. The lower surface of the coping 300 may be seated on the support plate 220.

The extension part 230 may be formed to extend downward from the lower end of the cap 210. Accordingly, the pile 100 may penetrate the extension 230.

The first reinforcing rib 240 includes a first horizontal surface portion 242 installed in a radial direction on the lower surface of the support plate 220, a first vertical surface portion 244 installed in the vertical direction on the outer peripheral surface of the extension portion 230, and It may be configured to include a first connecting portion 246 connecting the first horizontal surface portion 242 and the first vertical surface portion 244.

In addition, a plurality of first reinforcing ribs 240 may be disposed along the circumferential direction with the center axis of the extension part 230 as the center.

Accordingly, the support force of the support plate 220 supporting the coping 300 may be strengthened.

Referring to FIG. 10, a packing member 260 may be provided below the coping bracket 200 according to an embodiment. The packing member 260 may correspond to an O-ring shape. Accordingly, it is possible to prevent the first filler from flowing downward.

11 and 12 are perspective views and plan views illustrating an embodiment of a coping bracket having a grating formed thereon.

11 and 12, a grating 216 may be formed on the upper surface of the cap 210, instead of the through hole 214 of FIGS. 5 to 10. The first filler may be poured into the first insertion hole 212 or the hollow portion 110 (FIG. 2) through the grating 216.

Accordingly, even if an empty space occurs between the cap 210 and the pile 100 after inserting the pile 100 into the cap 210, the first filler can fill the empty space, so that the coping bracket 200 Can be strongly bound with (100).

Further, since the empty space can be filled with the first filler, the size of the cross-sectional area of the first insertion hole 212 can be formed larger than the size of the cross-sectional area of the pile 100, so that the coping bracket 200 is made despite errors in manufacturing or construction. Can be installed on the top of the pile 100 at a correct slope or at a correct position.

For example, even if the pile 100 is installed to be inclined, the inclination of the coping bracket 200 installed on the top of the pile 100 may be adjusted through the free space of the first insertion hole 212. Accordingly, the coping 300 may be horizontally installed on the coping bracket 200.

13 to 15 are perspective views, plan views, and front views illustrating an embodiment of a coping bracket including a second reinforcing rib.

13 to 15, the second reinforcing rib 250 includes a second horizontal surface portion 252 installed radially on the upper surface of the support plate 220, and vertically installed on the outer peripheral surface of the cap 210. It may be configured to include a second vertical surface portion 254 and a second connection portion 256 connecting the second horizontal surface portion 252 and the second vertical surface portion 254.

In addition, a plurality of second reinforcing ribs 250 may be disposed along the circumferential direction with the center axis of the cap 210 as the center.

Accordingly, the support force of the support plate 220 supporting the coping 300 may be strengthened.

At this time, the distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is the distance d1 from the central axis of the cap 210 to the side end surface of the support plate 220 Can be smaller than ).

Accordingly, even if the second reinforcing rib 250 is provided on the support plate 220, the lower surface of the coping 300 may be stably seated on the support plate 220.

In addition, the distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is the radially outer end of the first horizontal surface portion 242 from the central axis of the extension 230 It may be less than the distance to (d2).

Accordingly, since the portion of the support plate 220 on which the lower surface of the coping 300 is seated may be supported by the first reinforcing rib 240, the support force of the support plate 220 supporting the coping 300 may be strengthened. .

16 to 18 are perspective views, plan views, and front views illustrating an embodiment of a coping bracket having a bolt.

Referring to FIGS. 16 to 18, the cap 210 may include a pair of bolts 270 that pass through both sides and are oppositely installed. The outer diameter of the pile 100 is smaller than the inner diameter of the cap 210, and one end of the bolt 270 may contact the pile 100 inserted into the first insertion hole 212. By tightening one of the opposing bolts and releasing the other, the position of the cap 210 relative to the pile 100 can be precisely adjusted.

Accordingly, in spite of manufacturing or construction errors, the coping bracket 200 may be installed at a correct inclination or may be installed at a correct position.

Bolts 270 may be installed opposite to the front and rear and left and right sides of the cap 210. Accordingly, the position or slope of the coping bracket 200 can be quickly and accurately adjusted.

[Coping]

19 to 22 are a perspective view, a plan view, a bottom view and a front perspective view showing a coping according to an embodiment of the present invention, and FIGS. 23 and 24 are a perspective view and a front perspective view showing a state in which a pile, a coping bracket, and a coping are combined to be.

19 to 24, a hollow second insertion hole 310 with an open lower portion may be formed in the coping 300 according to an exemplary embodiment. Specifically, for example, in the coping 300, the second insertion holes 310a and 310b may be formed at one end and the other end, respectively. The cap 210 may be inserted into the second insertion hole 310.

At this time, as shown in FIG. 24, the upper end of the pile 100 inserted into the first insertion hole 212 formed in the cap 210 is inserted into the inside of the second insertion hole 310 formed in the coping 300. can do. In addition, the lower surface of the coping 300 may be seated on the support plate 220.

Accordingly, since the coping 300 is stably supported with a minimal and simple configuration, the manufacturing cost and construction cost of each component can be reduced, and the construction period can be shortened.

In addition, an upper portion of the second insertion hole 310 may be opened, and a second filler may be poured into the second insertion hole 310 through the open upper portion. The second filler may correspond to mortar, cement, or epoxy resin.

Accordingly, even if an empty space occurs between the coping 300 and the cap 210 after inserting the cap 210 into the coping 300, the second filler can fill the empty space, so that the coping 300 It can be strongly bound with (200).

Furthermore, since the empty space can be filled with the second filler, the size of the cross-sectional area of the second insertion hole 310 can be formed larger than the size of the cross-sectional area of the cap 210, so that the coping 300 is It can be installed at the correct slope or in the correct position.

For example, even if the cap 210 is installed to be inclined, the inclination of the coping 300 installed in the cap 210 may be adjusted through the free space of the second insertion hole 310. Accordingly, the slab 400 may be installed horizontally on the coping 300.

The top of the second insertion hole 310 may be open, and the height of the upper surface of the coping 300 may correspond to the height of the upper surface of the cap 210 inserted into the second insertion hole 310.

Accordingly, it can be easily checked whether the cap 210 is correctly inserted into the second insertion hole 310, and the upper surface of the coping 300 and the upper surface of the cap 210 can support the slab 400 together. Therefore, the support and stability of the bridge can be improved.

In addition, the second insertion hole 310 may include an upper region 312 having a constant cross-sectional area and a lower region 314 having a larger cross-sectional area than the upper region 312 and smaller toward the upper portion. have.

Accordingly, since the cap 210 is guided by the lower region 314 with a large cross-sectional area and is inserted from the lower portion of the second insertion hole 310 to the upper portion, the coping 300 can be easily installed on the coping bracket 200. .

Meanwhile, the second reinforcing rib 250 described above as shown in FIG. 24 is provided (or provided) in the space other than the space in which the cap 210 is inserted among the lower region 314 of the second insertion hole 310 , The bolt 270 described above with reference to FIGS. 16 to 18 may be provided. Other empty spaces may be filled with a second filler.

In addition, a slab 400 may be mounted on the upper surface of the coping 300 as shown in FIG. 1, and a position fixing groove 320 may be formed as shown in FIGS. 19 to 24. Position fixing groove 320 will be described later.

[Slab]

25 to 27 are perspective views, plan views, and front views showing a slab according to an embodiment of the present invention, and FIGS. 28 and 29 are state diagrams showing a process in which the slab is assembled and coupled with an adjacent slab.

25 to 27, a first groove portion 410 at one end portion of the slab 400 in the first direction; And a second groove 420 further extending from the first groove 410 in the other direction in the first direction and having an enlarged width in a second direction crossing the first direction (that is, w2>w1). I can.

In addition, at the other end of the slab 400 in the first direction, the first protrusion 430 protruding in the other direction and the first protrusion 430 further extend in the other direction in the first direction and enlarged in the second direction. A second protrusion 440 having a width (ie, w4>w3) may be formed.

The widths w3 and w4 of the first protrusion 430 and the second protrusion 440 may correspond to the widths w1 and w2 of the first groove 410 and the second groove 420, respectively.

Accordingly, the slab 400 may be easily extended while being assembled and coupled with the adjacent slab 400 in the first direction, and the slab 400 may be bonded to each other without deviating from the first direction or the second direction. Therefore, since the slab 400 can be connected while being stably and easily bound with a simple configuration without a separate connecting member, the manufacturing cost and construction cost of the bridge can be reduced, and the construction period can be shortened.

Meanwhile, in the drawing, the slab 400 has grooves 410 and 420 and protrusions 430 and 440 at both ends in the first direction, but is not limited to this configuration. For example, among the plurality of slabs 400, some of the slabs 400 may have grooves 410 and 420 at both ends in the first direction, and the other part of the slabs 400 may have protrusions at both ends of the first direction. (430, 440) may be formed. It is the same below.

At one end of the slab 400, a second groove portion 420 having a first groove region 422 having an upper portion open and a first groove width smaller than the lower portion in the first direction (ie, w6<w5) may be formed. In addition, a second protrusion 440 having a first protrusion region 442 accommodated in the first groove region 422 may be formed at the other end of the slab 400.

Accordingly, when the slab 400 is assembled and coupled with the neighboring slab 400 in the first direction, it may not be separated upward and be bound. Therefore, since the slab 400 can be connected while being stably and easily bound with a simple configuration without a separate connecting member, the manufacturing cost and construction cost of the bridge can be reduced, and the construction period can be shortened.

The second protrusion 440 may have a short width w9 measured in a state in which the slab 400 is inclined at a predetermined angle a from a long width w8 and a long width w8 on a cross section cut in the first direction, and , The first width w6 of the upper portion of the first groove region 422 may be greater than or equal to the short width w9 and less than the long width w8.

Accordingly, when the slab 400b is tilted at, for example, a predetermined angle (a), the second protrusion 440b can be inserted into the first groove region 422b (Fig. 28), and the second protrusion 440b When the slab 400b is rotated by a predetermined angle (a) while the slab 400b is inserted, the second protrusion 440b does not deviate upward from the first groove area 422b, so that the slab 400b is adjacent to the slab 400a. ) Can be bound to (Fig. 29). Therefore, since the slab 400 can be connected while being stably and easily bound with a simple configuration without a separate connecting member, the manufacturing cost and construction cost of the bridge can be reduced, and the construction period can be shortened.

In addition, since the slab 400 can rotate while the second protrusion 440 is inserted into the second groove 420, even if the height of the ground in some areas is changed, the bond is not broken while the slab 400 rotates. Can be maintained, so the durability of the bridge can be improved.

Meanwhile, both ends of the slab 400 in the first direction may be mounted on the upper surface of the two copings 300 spaced apart, as shown in FIG. 1.

At this time, the long width w8 of the second protrusion 440 may correspond to the width in the first direction of the second protrusion 440 in a state in which both ends of the slab 400 are mounted on the coping 300, and the The predetermined angle (a) may be less than 90 degrees. For example, in FIG. 27, the predetermined angle a may correspond to 45 degrees.

Accordingly, by tilting the slab 400 at an angle less than 90 degrees, the second protrusion 440 can be inserted into the first groove area 422, and an angle less than 90 degrees in the state in which the second protrusion 440 is inserted. The slab 400 may be rotated to bind the slab 400 to the neighboring slab 400. Therefore, the construction time can be shortened by reducing the time required to tilt or rotate the slab 400, and the second protrusion 440 or the second groove 420 during rotation by reducing the amount of rotation of the slab 400 ) Can reduce or prevent damage or wear.

The first groove region 422 may gradually decrease in width in the first direction as it goes from the bottom to the top, and the degree of decrease in the width may be gradually increased as it goes upward. Accordingly, one inner surface or the other inner surface of the slab 400 forming the first groove region 422 may form a curved surface, and the center of curvature of the curved surface at this time is the inner side of the second groove portion 420 Can be located in

Therefore, the slab 400 is easily rotated while the second protrusion 440 of the slab 400 is inserted into the second groove 420 of the neighboring slab 400 so that it can be easily moved to the neighboring slab 400. It can be installed while binding, and it is possible to prevent the second protrusion 440 or the first groove region 422 from being damaged or worn during the installation process. In addition, when the height of the ground in some areas is changed, the slab 400 can easily rotate and the bond can be maintained, so that the durability of the bridge can be improved.

In addition, when one inner surface s1 in the first direction of the slab 400 forming the first groove region 422 forms the above-described curved surface, a second inner surface s1 facing one inner surface s1 in the first direction One outer peripheral surface s1 ′ of the protrusion 440 in the first direction may form a curved surface having a corresponding shape.

Accordingly, the slab 400 is easily rotated while the second protrusion 440 of the slab 400 is inserted into the second groove 420 of the neighboring slab 400 to facilitate the neighboring slab 400 The second protrusion 440 or the first groove area 422 may be prevented from being damaged or worn during the installation process. In addition, when the height of the ground in some areas is changed, the slab 400 can easily rotate and the bond can be maintained, thereby improving the durability of the bridge.

In addition, the upper surface s2 of the second protrusion 440 in a state in which both ends of the slab 400 are mounted on the coping 300 may be parallel to and at the same height as the upper surface of the slab 400.

Accordingly, since the surfaces of the slab 400 and the second protrusion 440 are smoothly connected, damage to the second protrusion 440 or the second groove 420 can be prevented.

In addition, the lower surface s3 of the second protrusion 440 in a state in which both ends of the slab 400 are mounted on the coping 300 may be flat.

Accordingly, since the load applied to the upper portion of the second protrusion 440 is stably transmitted to the coping 300 through the flat lower surface s3, the load is prevented from being concentrated at a specific point on the lower surface s3 of the second protrusion 440 Thus, it is possible to prevent the second protrusion 440 from being damaged.

At one end of the slab 400, a second groove portion 420 having a second groove region 424 having a lower opening and a lower width in the first direction than the upper portion (ie, w7<w5) may be formed. In addition, a second protruding portion 440 having a second protruding region 444 accommodated in the second groove region 424 may be formed at the other end of the slab 400.

Accordingly, when the slab 400 is assembled and coupled with the neighboring slab 400 in the first direction, the slab 400 may not be separated and may be bound downward. Therefore, since the slab 400 can be connected while being stably and easily bound with a simple configuration without a separate connecting member, the manufacturing cost and construction cost of the bridge can be reduced, and the construction period can be shortened.

As described above, the second protrusion 440 has a short width w9 measured in a state in which the slab 400 is inclined at a predetermined angle a from the long width w8 and the long width w8 on the cross section cut in the first direction. ), and the first width w7 of the lower portion of the second groove region 424 may be greater than or equal to the short width w9 and less than the long width w8.

Accordingly, when the slab 400 is tilted at, for example, a predetermined angle (a), the second protrusion 440 can be inserted into the first groove area 422 and the second protrusion 440 is inserted. If the slab 400 is rotated by a predetermined angle (a), the second protrusion 440 does not deviate downward from the first groove area 422 so that the slab 400 will be bound to the neighboring slab 400. I can. Therefore, since the slab 400 can be connected while being stably and easily bound with a simple configuration without a separate connecting member, the manufacturing cost and construction cost of the bridge can be reduced, and the construction period can be shortened.

In addition, since the slab 400 can rotate while the second protrusion 440 is inserted into the second groove 420, even if the height of the ground in some areas is changed, the bond is not broken while the slab 400 rotates. Can be maintained, so the durability of the bridge can be improved.

The second protrusion 440 of the slab 400 is inserted through the second groove 420 of the neighboring slab 400, and both ends of the slab 400 and the neighboring slab 400 are mounted on the coping 300 In this state, the second protrusion 440 may include a protrusion 450 (FIG. 27) protruding below the second groove 420. Correspondingly, a position fixing groove 320 into which the protruding portion 450 is inserted may be formed on the upper surface of the coping 300.

Accordingly, since the slab 400 mounted on the upper surface of the coping 300 can be stably fixed without a separate connecting member, the manufacturing cost and construction cost of the bridge can be reduced, and the construction period can be shortened.

Here, the separate connecting member is a coupling member such as a bolt for fixing the coping 300 and the slab 400, or a conventional girder installed between the coping 300 and the slab 400 to support the slab 400 ( girder), etc.

In this case, the width w11 in the first direction of the position fixing groove 320 (FIG. 19) may be larger than the width in the first direction w10 (FIG. 27) of the protruding portion 450. Accordingly, even if the coping 300 or the protruding part 450 contracts or expands, the protruding part 450 can be prevented from leaving the position fixing groove 320.

As described above, both ends of the slab 400 in the first direction are mounted on the upper surface of the two copings 300 spaced apart from each other, and the other end of both ends of the slab 400 in the first direction is a slab adjacent thereto. By assembling and combining with one end of the 400, a bridge can be made with a minimal and simple configuration without a separate connecting member or support member, thus reducing the manufacturing cost and construction cost of the bridge and shortening the construction period. Here, a separate connecting member or support member may refer to a conventional girder or the like installed between the coping 300 and the slab 400 to support the slab 400.

Meanwhile, in the drawing, the first groove portion 410 and the second groove portion 420 are formed together in the slab 400, and the first protruding portion 430 and the second protruding portion 440 are formed together, but the configuration is not limited thereto. For example, the first groove 410 and the first protrusion 430 are not formed in the slab 400, but only the second groove 420 and the second protrusion 440 may be formed. It is the same below.

FIG. 30 is a perspective view showing a prefabricated precast bridge according to another embodiment of the present invention, and FIGS. 31 to 42 are a perspective view, a plan view, a bottom view, and a front view showing three types of coping installed in the precast bridge of FIG. 30 It is a perspective view.

Referring to FIG. 30, the prefabricated precast bridge 20 according to another embodiment may include a pile 100, a coping bracket 200, a coping 300 and a slab 400. It looks at the coping 300. The rest of the configuration is as described above.

A plurality of second insertion holes 310 (two in the drawing) may be formed in the coping 300, respectively, and at least a portion (two in the drawing) of the second insertion holes 310 among the plurality of second insertion holes 310 The upper part 310 may be open.

At least one second insertion hole 310 formed in each coping 300 may be disposed to be in vertical communication with the second insertion hole 310 formed in another coping 300.

Specifically, for example, the coping 300 may have a second insertion hole 310 formed at one end and the other end, respectively, and one end or the other end of the coping 300 is the other end of the other coping 300 or The second insertion holes 310 formed in the two copings 300 by being stacked and disposed at one end in the vertical direction may communicate with each other.

At this time, at least a portion of the plurality of caps 210 may be inserted through the plurality of second insertion holes 310 respectively disposed to communicate with each other at a time.

Accordingly, the coping 300 can be easily extended while being assembled and coupled to the cap 210 in a minimal and simple configuration without a separate coupling member, and the coping 300 is bound to each other to support the slab 400. Stability and durability can be improved.

One end of the stacked coping 300 and the other end of the other coping 300 are formed to be stepped from the coping 300 and the other coping 300 to the inner upper side or the inner side to be engaged with each other (Fig. 30). 300a and 300b, 300b and 300c). In addition, a value obtained by summing the thicknesses of one end portion and the other end portion arranged in a stack may correspond to the thickness of the coping 300. In connection with this configuration, FIGS. 31 to 42 will be described.

31 to 34 are a perspective view, a plan view, a bottom view, and a front perspective view showing a first coping 300a in which the other end is stepped inwardly and downward, and FIGS. 35 to 38 are It is a perspective view, a top view, a bottom view, and a front perspective view showing a second coping 300b having an end stepped inwardly and downward, and FIGS. 39 to 42 show a third coping 300c having one end stepped inwardly and upwardly. It is a perspective view, a plan view, a bottom view, and a front perspective view.

Second insertion holes 310a and 310b may be formed at one end and the other end of the first/second/third copings 300a, 300b, and 300c, respectively.

At this time, the second insertion hole 310 formed in the coping 300 has a larger cross-sectional area than the upper area 312 and the upper area 312, which are maintained at a constant cross-sectional area, as described above, and the cross-sectional area is smaller toward the top. The paper may be divided into a lower area 314.

A second insertion hole 310 composed of only the lower region 314 may be formed at an end portion formed to be stepped inwardly and downward, such as the other end of the first coping 300a and the second coping 300b, and the second coping ( A second insertion hole 310 composed of only the upper region 312 may be formed at an end stepped inwardly and upward, such as at one end of 300b) and the third coping 300c.

When the other end of the first coping 300a and one end of the second coping 300b or the other end of the second coping 300b and one end of the third coping 300c are interlocked and stacked, the upper portion formed at the right-sided end The region 312 and the lower region 314 may communicate with each other.

In addition, the sum of the thickness of the other end of the stacked first coping 300a and one end of the second coping 300b or the other end of the second coping 300b and the one end of the third coping 300c is It may correspond to the thickness of the coping 300.

Accordingly, even if the coping 300 is stacked at the end of the coping 300 and the other coping 300, the surface of the coping 300 may be smoothly connected, so that damage to the coping 300 may be prevented.

43 is a perspective view showing an assembly-type precast bridge according to another embodiment of the present invention, and FIG. 44 is a perspective view showing the coping of FIG. 43, and FIGS. 45 and 46 are states before and after the coping of FIG. 43 is seated on the coping bracket Is a perspective view showing.

Referring to FIG. 43, the precast bridge 20 according to another embodiment may include a pile 100, a coping bracket 200, a coping 500, and a slab 400. It looks at the coping 500. The rest of the configuration is as described above.

With further reference to FIGS. 44 to 46, a connection groove 510 with an open lower portion may be formed in a side cross-section of at least one coping 500. In addition, the lower surface of the side end portion of the coping 500 may be seated on the support plate 220.

In addition, the side cross-section of the coping 500a in which the connection groove 510a is formed may be disposed to face the side cross-section of the other coping 500b in which the connection groove 510b is formed (FIGS. 45 and 46). Accordingly, the connection grooves 510a 510b formed respectively in the two copings 500a and 500b disposed to face each other may be communicated, and the cap 210 may be located in the connected connection grooves 510a and 510b ( Figure 46).

A second filler may be filled in the connected connection grooves 510a and 510b. When the second filler is filled, the side end surface of the coping 500a in which the connection groove 510a is formed and the side end surface of the other coping 500b in which the connection groove 510b is formed may be combined. Accordingly, a plurality of copings 500 may be disposed while extending side by side in the longitudinal direction of the bridge (FIG. 43).

Both ends of the slab 400 may be mounted on the upper surfaces of the two copings 500 that are spaced apart and arranged side by side. As described above, the other end of the slab 400 may be assembled with one end of the slab 400 adjacent thereto.

Accordingly, the coping 300 may be installed in the longitudinal direction of the bridge to perform a conventional girder function for supporting the slab 400. Therefore, since the bridge can be made with a simple minimum configuration without a separate connecting member or support member such as a conventional girder, it is possible to reduce the manufacturing cost and construction cost of the bridge, and to shorten the construction period.

A position fixing groove 520 into which the protruding portion 450 of the slab 400 is inserted may be formed on the upper surface of the coping 500.

47 is a flow chart showing the construction method of the precast bridge assembly according to an embodiment of the present invention.

Referring to Figure 47, the construction method of the precast bridge according to an embodiment is a pile installation step (S610), coping bracket installation step (S620), coping bracket fixing step (S630), coping installation step (S640), coping It may be configured including a fixing step (S650) and a slab installation step (S660).

In the file installation step S610, the file 100 may be installed on the ground.

In the coping bracket installation step (S620), the upper end of the pile 100 may be inserted into the first insertion hole 212 of the cap 210.

In the coping bracket fixing step (S630), the first filler may be poured into the first insertion hole 212 of the cap 210 or the hollow part 110 of the pile 100.

At this time, the first filler may be poured after adjusting the position or inclination of the coping bracket 200 by manipulating the bolts 270 installed opposite to each other through both sides of the cap 210.

Accordingly, in spite of manufacturing or construction errors, the coping bracket 200 can be quickly and easily fixed to the correct inclination or fixed to the correct position.

Meanwhile, when the coping bracket 200 is not used, the coping bracket installation step (S620) and the coping bracket fixing step (S630) may be omitted. Even when the coping bracket 200 is used, the step of fixing the coping bracket (S630) may be omitted.

In the coping installation step (S640), the coping 300 may be combined with the upper end of the pile 100. Specifically, when the coping bracket 200 is installed on the top of the pile 100, the cap 210 of the coping bracket 200 may be inserted into the second insertion hole 310 of the coping 300. At this time, as shown in FIG. 30, when at least one second insertion hole 310 formed in the coping 300 is disposed to be in vertical communication with the second insertion hole 310 formed in the other coping 300, The cap 210 may have to be first inserted into the second insertion hole 310 disposed below the second insertion hole 310 disposed in communication with the upper side.

On the other hand, in the case of the construction method of the prefabricated precast bridge according to another embodiment of FIG. 43, the lower surface of the side end portion of the coping 500 is seated on the support plate 220 and the connection groove 510 is formed. ) May be disposed to face the side end surface of the other coping 500 in which the connection groove 510 is formed.

Meanwhile, when the coping bracket 200 is not used, the coping 300 may be directly coupled to the upper end of the pile 100.

In the coping fixing step (S650), a second filler may be poured into the second insertion hole 310.

On the other hand, in the case of the construction method of the prefabricated precast bridge according to another embodiment of FIG. 43, a second filler may be poured into the connected connection groove 510.

The coping fixing step (S650) may be omitted.

In the slab installation step (S660), the slab 400 may be installed on the upper surfaces of the copings 300 and 500 while assembling and combining the slab 400 with the neighboring slab 400.

Specifically, for example, the second protrusion 440 formed on the other end of the slab 400 is inserted through the second groove 420 of the neighboring slab 400 already installed in the copings 300 and 500 to be coping ( It may be installed on the copings 300 and 500 by first being mounted on the 300 and 500 and rotating the slab 400 using the mounted second protrusion 440 as a rotation axis.

When the second protrusion 440 has a short width w9 measured in a state in which the slab 400 is inclined at a predetermined angle a from the long width w8 and the long width w8 on the cross section cut in the first direction Here, by tilting the slab 400 at a predetermined angle (a), the second protrusion 440 may be inserted through the second groove 220 of the adjacent slab 400.

Accordingly, it is possible to install the slab 400 quickly and easily while binding the slab 400 to the neighboring slab 400 by a simple construction method of tilting or rotating the slab 400.

In this way, the construction method of the precast bridge is a pile installation step of installing the pile 100 on the ground (S610); Coping bracket installation step of inserting the upper end of the pile 100 into the first insertion hole 212 (S620); Coping bracket fixing step of pouring the first filler into the first insertion hole 212 (S630); A coping installation step of inserting the cap 210 of the coping bracket 200 into the second insertion hole 310 (S640); Coping fixing step (S650) of pouring a second filler into the second insertion hole 310; And by including a slab installation step (S660) of installing the slab 400 on the upper surface of the coping 300, a bridge is made with a minimal simple process without including a process such as installing a separate connecting member or a coupling member. As a result, it is possible to reduce the manufacturing cost and construction cost of the bridge and shorten the construction period.

In addition, the construction method of the precast bridge is a pile installation step of installing the pile 100 on the ground (S610); Coping installation step (S640) of coupling the coping 300 to the upper end of the pile 100; By including the slab installation step (S660) of installing the slab 400 on the upper surface of the coping 300 while assembling and combining the slab 400 with the neighboring slab 400, it includes an additional process such as installing a separate connecting member or support member Since the bridge can be made with a minimal and simple process, the manufacturing cost and construction cost of the bridge can be reduced, and the construction period can be shortened. Here, a separate connecting member or support member may refer to a conventional girder or the like installed between the coping 300 and the slab 400 to support the slab 400.

In addition, the construction method of the precast bridge is a pile installation step of installing the pile 100 on the ground (S610); Coping bracket installation step of inserting the upper end of the pile 100 into the first insertion hole 212 (S620); The lower surface of the side end portion of the coping 500 is seated on the support plate 220 and the side end surface of the coping 500 in which the connection groove 510 is formed faces the side end surface of the other coping 500 in which the connection groove 510 is formed. Coping installation step of placing (S640); Coping fixing step (S650) of pouring a second filler into the connected connection groove 510; By including the slab installation step (S660) of installing the slab 400 on the upper surface of the coping 500 while assembling the slab 400 with the neighboring slab 400, installing a separate connecting member or support member such as a conventional girder, etc. Since the bridge can be made with a minimal and simple process without the additional process of, it is possible to reduce the manufacturing cost and construction cost of the bridge and shorten the construction period.

As described above with reference to the drawings illustrated for the present invention, the present invention is not limited by the embodiments and drawings disclosed in the present specification, and various by a person skilled in the art within the scope of the technical idea of the present invention. It is obvious that transformation can be made. In addition, even if not explicitly described and described the effects of the configuration of the present invention while describing the embodiments of the present invention, it is natural that the predictable effects of the configuration should also be recognized.

10: precast bridge
100: file 110: hollow part
120: filling finish plate 122: bonding rod
200: coping bracket 210: cap
212: first insertion hole 214: through hole
216: grating 220: support plate
230: extension
240: first reinforcing rib 242: first horizontal surface portion
244: first vertical surface portion 246: first connection portion
250: second reinforcing rib 252: second horizontal surface portion
254: second vertical surface portion 256: second connection portion
260: packing member 270: bolt
300: coping 310: second insertion hole
312: upper region 314: lower region
320: position fixing groove
400: slab 410: first groove
420: second groove 422: first groove area
424: second groove area 430: first protrusion
440: second protrusion 442: first protrusion region
444: second protruding region 450: protruding portion

Claims (17)

A pile 100 installed to extend in the vertical direction;
A steel material including a hollow cap 210 having a first insertion hole 212 open downward and a flange-shaped support plate 220 extending radially outward from the outer circumference of the lower end of the cap 210 Coping bracket 200; And
As a pier comprising; a coping 300 having a hollow second insertion hole 310 opened downward,
The cap 210 of the coping bracket 200 is extrapolated to the upper end of the pile 100 through the first insertion hole 212, and accordingly, the upper surface of the cap 210 of the coping bracket 200 is Regulating the insertion depth of the pile 100 with respect to the first insertion hole 212 of the cap 210,
As the coping 300 is extrapolated to the cap 210 of the coping bracket 200 through the second insertion hole 310, the lower surface of the coping 300 is the support plate 220 of the coping bracket 200 And, accordingly, the support plate 220 of the coping bracket 200 regulates the insertion depth of the cap 210 of the coping bracket 200 with respect to the second insertion hole 310 of the coping 300 ,
The side surface of the cap 210 is disposed between the outer circumference of the upper end of the pile 100 and the inner circumference of the second insertion hole 310 of the coping 300 in the radial direction to prevent the lateral movement of the coping 300. Regulate,
The side of the cap 210 is extended in the vertical direction, the upper part of which is connected to the upper surface of the cap 210 and the lower part of the cap 210 is connected to the support plate 220, so that the coping bracket seated on the support plate 220 It supports a load of (200),
A grating 216 is provided on the upper surface of the cap 210, or a through hole 214 is provided on the upper surface or side surface of the cap 210,
The first filler is poured into the first insertion hole 212 through the grating 216 or the through hole 214 so that the upper end of the pile 100 is inserted into the hollow portion of the cap 210. Prefabricated precast piers filled with hollows.
The method according to claim 1,
The pile 100 has a hollow portion 110 with an open top,
The hollow part 110 has a predetermined height from the upper end of the hollow part 110 and a filling finish plate 120 intercepting the hollow part 110 is installed under the prefabricated precast pier.
The method according to claim 2,
An assembly-type precast pier having a coupling rod 122 protruding upward on the upper surface of the filling finish plate 120.
The method according to claim 1,
The cap 210 has a pair of bolts 270 installed opposite to each other through both sides,
One end of the bolt (270) is in contact with the pile (100) inserted into the first insertion hole (212), a precast precast pier.
The method of claim 4,
The bolt 270 is installed opposite to the front and rear and left and right sides of the cap 210, the precast precast pier.
The method according to claim 1,
The coping bracket 200,
An extension part 230 extending downward from the lower end of the cap 210; And
A first horizontal surface portion 242 installed in a radial direction on a lower surface of the support plate 220, a first vertical surface portion 244 installed in a vertical direction on an outer peripheral surface of the extension portion 230, and the first horizontal surface portion 242 ) And a first reinforcing rib 240 configured to include a first connecting portion 246 connecting the first vertical surface portion 244,
A plurality of the first reinforcing ribs 240 are disposed along the circumferential direction with respect to the central axis of the extension part 230.
The method according to claim 1,
The coping bracket 200,
A second horizontal surface portion 252 installed in the radial direction on the upper surface of the support plate 220, a second vertical surface portion 254 installed in the vertical direction on the outer peripheral surface of the cap 210, and the second horizontal surface portion 252 Further comprising a second reinforcing rib 250 configured to include a second connecting portion 256 connecting the second vertical surface portion 254,
A plurality of second reinforcing ribs 250 are arranged along a circumferential direction with respect to a central axis of the cap 210, a precast pier.
The method of claim 7,
The distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is the distance from the central axis of the cap 210 to the side end surface of the support plate 220 ( d1) smaller, precast piers.
The method of claim 6,
The coping bracket 200,
A second horizontal surface portion 252 installed in the radial direction on the upper surface of the support plate 220, a second vertical surface portion 254 installed in the vertical direction on the outer peripheral surface of the cap 210, and the second horizontal surface portion 252 Further comprising a second reinforcing rib 250 configured to include a second connecting portion 256 connecting the second vertical surface portion 254,
A plurality of the second reinforcing ribs 250 are disposed along the circumferential direction around the central axis of the cap 210,
The distance d3 from the central axis of the cap 210 to the radially outer end of the second horizontal surface portion 252 is in the radial direction of the first horizontal surface portion 242 from the central axis of the extension portion 230 Prefabricated precast pier, less than the distance to the outer end (d2).
The method according to claim 1,
The second insertion hole 310 has an open top,
A second filler material is poured into the second insertion hole 310 through the open upper part of the precast pier.
The method according to claim 1,
The second insertion hole 310 has an open top,
The height of the upper surface of the coping 300 corresponds to the height of the upper surface of the cap 210 inserted into the second insertion hole 310, a precast pier.
The method according to claim 1,
The second insertion hole 310 is configured to include an upper region 312 having a cross-sectional area maintained at a constant size, and a lower region 314 having a larger cross-sectional area than the upper region 312 and decreasing upwardly, Prefabricated precast pier.
The method according to claim 1,
The prefabricated precast pier includes a plurality of the pile 100, the coping bracket 200, and the coping 300, respectively,
The plurality of piles 100 are respectively inserted into the caps 210 of the plurality of coping brackets 200,
Each of the plurality of copings 300 is formed with a plurality of the second insertion holes 310,
At least a portion of the second insertion hole 310 of the plurality of second insertion holes 310 has an open upper portion,
At least one of the second insertion holes 310 formed in each of the copings 300 is arranged to be in vertical communication with the second insertion holes 310 formed in the other copings 300,
At least some of the plurality of caps 210 are inserted through the plurality of second insertion holes 310 respectively disposed to communicate with each other at a time.
The method of claim 13,
The coping 300 has the second insertion hole 310 formed at one end and the other end, respectively,
One end or the other end of the coping 300 is stacked and disposed in a vertical direction with the other end or one end of the other coping 300 so that the second insertion holes 310 formed in the two copings 300 communicate with each other. Become,
The stacked one end and the other end are formed to be stepped inwardly upward or downwardly in the coping 300 and the other coping 300 so as to mesh with each other,
The prefabricated precast pier, wherein a value obtained by summing the thicknesses of the one end portion and the other end portion arranged in the stack corresponds to the thickness of the coping (300).
The method according to claim 1,
A packing member 260 is provided at the lower end of the coping bracket 200, an assembly-type precast pier.
As the construction method of the precast pier of any one of claims 1 to 15,
A file installation step (S610) of installing the file 100 on the ground;
Coping bracket installation step (S620) of inserting the upper end of the pile 100 into the first insertion hole 212;
Coping bracket fixing step (S630) of pouring a first filler into the first insertion hole 212;
A coping installation step (S640) of inserting the cap 210 of the coping bracket 200 into the second insertion hole 310;
Coping fixing step (S650) of pouring a second filler into the second insertion hole 310; And
Including a slab installation step (S660) of installing the slab 400 on the upper surface of the coping 300, the construction method of the precast pier.
As the construction method of the prefabricated precast pier of claim 4 or 5,
A file installation step (S610) of installing the file 100 on the ground;
Coping bracket installation step (S620) of inserting the upper end of the pile 100 into the first insertion hole 212;
A coping bracket fixing step (S630) of placing a first filler in the first insertion hole 212 after adjusting the position or inclination of the coping bracket 200 by manipulating the bolt 270;
A coping installation step (S640) of inserting the cap 210 of the coping bracket 200 into the second insertion hole 310;
Coping fixing step (S650) of pouring a second filler into the second insertion hole 310; And
Including a slab installation step (S660) of installing the slab 400 on the upper surface of the coping 300, the construction method of the precast pier.

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