KR101740341B1 - Joint structure of culvert unit using metal touch connecting plate - Google Patents

Joint structure of culvert unit using metal touch connecting plate Download PDF

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Publication number
KR101740341B1
KR101740341B1 KR1020150052134A KR20150052134A KR101740341B1 KR 101740341 B1 KR101740341 B1 KR 101740341B1 KR 1020150052134 A KR1020150052134 A KR 1020150052134A KR 20150052134 A KR20150052134 A KR 20150052134A KR 101740341 B1 KR101740341 B1 KR 101740341B1
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South Korea
Prior art keywords
metal
unit
plate
web
touch
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KR1020150052134A
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Korean (ko)
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KR20160122374A (en
Inventor
신동일
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세일콘크리트공업 주식회사
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Priority to KR1020150052134A priority Critical patent/KR101740341B1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0046—Production methods using prestressing techniques
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

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

Abstract

The present invention relates to a cowling unit joining part using a metal touch joining plate capable of increasing a joining force and a shear strength of a cage unit joining part against an external force due to an upper load or subsidence and simplifying the structure of the cage unit joining part to improve the workability of the cage unit joining part. Structure. ≪ / RTI >
In order to achieve the above-mentioned object, the present invention is characterized in that at least one metal touch joining plate is continuously provided on a cowling unit web, the cowl unit is provided continuously with a stranded wire passing through its inner edge, Wherein a prestress is introduced into a stranded wire at an end thereof to frictionally join the metal touch joint plate provided on the web of the facing cage unit and when a clearance is generated between the metal touch joint plates installed on the web of the opposing cage unit, The present invention is characterized in that an adhesive is injected between the metal-to-metal bonding plates or the metal-to-metal bonding plates are inserted and installed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a culvert unit using a metal touch connecting plate,

In the present invention, a metal touch joining plate is provided on a web of a facing cowling unit at a joining portion where a plurality of culvert units are joined, and a cowling unit is connected by prestressing by stranded wires at both ends of the cowling unit. The present invention relates to a cowling unit joint in which opposing metal touch joint plates are frictionally joined. In other words, it is a technology for improving the shear strength by the metal-touch joint plate at the connection between PC cages.

Generally, in a culvert, a prestress is introduced and connected to a culvert unit to support a shearing force acting on a culvert unit junction by an external force acting on an upper and a lower part, and a shear key, a shear key groove, A post tensioning method using a stranded wire is used to join the cage unit by a method of pin joining, socket joining, or the like, and introducing a prestress into the cage unit.

FIG. 1A is a perspective view showing an ibolt joint of a prior art cowling unit. FIG. 1B is a cross-sectional view of the cowling joint of FIG. 1A. In the cowling unit 100 junction of the prior art, The method of joining the eye bolts 104 to each other is to connect the plurality of cage units 100 made of precast concrete in the longitudinal direction and to connect the cages of the cage unit 100 to the opposed webs 101 A folding eye bolt 102 is provided in one side shear key groove 104 and an annular eye bolt 103 is provided in the other side shear key groove 104 to form a cowl unit 100 on one side, The folding type eye bolt 102 and the annular eye bolt 103 are fastened to each other when they are moved to and joined to the other cage unit 100 and a filler (not shown) is injected into the above- (100) are integrally connected.

The conventional method of joining the eye bolts can prevent cracking and widening of the joint even if the ground is immersed or the bending tensile force is applied by the upper load. However, due to the formation of the shear key groove, the fixing of the eyebolt, The workability of the substrate is deteriorated.

FIG. 2B is a perspective view showing the anti-earthquake pin and anti-earthquake pin joint of FIG. 2A, and FIG. 2C is a sectional view of the rocker unit joint of FIG. 2A.

As shown in FIGS. 2A to 2C, a method of joining an earthquake-resistant fin to a cowling unit joint of the prior art includes the steps of connecting a plurality of cowling units 100 made of precast concrete in the longitudinal direction, And the other side shear key groove 104 is provided with an earthquake pin 105. The shear key groove 104 is formed on the upper side and the lower side of the opposing web, The protruding portion 109 of the earthquake-proof fin 105 is inserted into the pin insertion hole 108 of the earthquake-proof fin coupling member 106 when the cowling unit 100 is moved to the other cowling unit 100 The anchor pin 110 is inserted into the through hole 107 formed in the earthquake-proof pin 105 and the earthquake-proof pin coupling hole 106, and then the filler The cage unit 100 is integrally connected.

Another prior art method of joining the earthquake-proof pin is that the earthquake pin is easily coupled to the earthquake-proof pin joint so that the earthquake is kept horizontal. Since the surrounding area of the earthquake pin can not maintain sufficient cover thickness, The filler is fractured and the seismic pin is easy to release.

Another conventional technique is to connect the cage unit with the shear key and the socket means at the cage unit connection part. Since the prior art has to support the upper load by the shear key formed on the web of the cage unit, The shear keys of the cage unit joints are likely to be shear fractured.

Therefore, it is necessary to develop a technique that improves the workability of the cage unit connection and increases the coupling force and shear strength of the cage unit connection with respect to external force.

Patent Registration No. 10-0931949 (issued on December 15, 2009) Registered Patent Publication No. 10-1348219 (Announced on January 17, 2014)

The present invention relates to a cowling unit using a metal touch joining plate capable of increasing a joining force and a shear strength of a cage unit joint portion against an external force due to an upper load or a ground settlement and simplifying the structure of the cage unit joining portion to improve the workability of the cage unit joining portion. It is an object of the present invention to provide a joint structure.

In order to achieve the above object, the present invention provides a cowling structure for a cowling unit in which a cowling unit is provided with a prestress to frictionally join the cowling unit joints and, when there is a gap between the cowling unit joints, , The coupling force and the shear strength of the cage unit junction are increased, and the separation between the cage units is controlled.

In order to achieve the above-mentioned object, the present invention provides a metal-to-metal bonding plate, which is installed on a web of a cowling unit for frictional joining of a cowling unit joint part, is embedded in a web so that its surface is exposed on a web surface, The surface of which forms a coarse friction surface with a plurality of projections.

Second, in order to control the separation between the cage units, when the clearance between the cage unit joints is small, an adhesive is injected between the metal touch junction plates to frictionally join the metal touch junction plates. When the gap is large, A metal-to-metal bonding plate is inserted and installed to frictionally bond to the metal-to-metal bonding plate.

Third, at least one metal touch joining plate is continuously installed to improve the shear friction of the cage unit joint.

Fourth, to increase the frictional bonding effect of the metal-touch joint plate installed on the web of the cowling unit, the post-tension technique is used for the prestress introduced for connection of the cowling unit.

The present invention has the effect of simplifying the structure of the cage unit junction by providing the metal touch junction plate on the cage unit web and frictionally joining the cage unit junction, thereby improving the workability of the cage unit junction.

Further, the present invention has the effect of increasing the bonding force and shear strength of the cage unit joint by introducing a prestress for connecting the cage unit to the friction joint by the metal touch joint plate.

Further, the present invention controls the spacing between the culvert units, which may occur according to the level of flatness of the ground, by injecting an adhesive into the gap between the metal-touch joint plates of the cowling unit joint or by inserting and installing the fill- It is effective.

Further, the present invention has an effect of increasing the shear friction due to the metal touch of the cage unit junction by continuously attaching and frictionally joining at least one metal touch junction plate.

Further, the present invention is not greatly affected by the level of flatness of the ground and the accuracy of construction owing to the frictional bonding structure, and it is possible to reinforce the cage unit joint portion while using the existing cage unit junction as it is.

1A is a perspective view showing an eye bolt connection of a conventional cowling unit.
1B is a cross-sectional view of the connection of the cage unit of Fig.
Fig. 2A is a cross-sectional view showing the pin joining of the prior art cowling unit
FIG. 2B is a perspective view showing the anti-earthquake pin and anti-earthquake pin coupling of FIG.
Figure 2c is a cross-sectional view of the connection of the cage unit of Figure 2a
3 is a perspective view showing that a metal touch bonding plate is installed on a web of a cowling unit according to an embodiment of the present invention.
4 is a cross-sectional view showing a metal-to-metal bonding plate being frictionally bonded to a web of a cowling unit according to an embodiment of the present invention
5 is a cross-sectional view showing a metal-to-metal bonding plate between the metal touching plates of the cowling unit according to another embodiment of the present invention.
6 is a perspective view showing a construction process of connecting a culvert unit using a metal touch joint plate, which is an embodiment of the present invention.

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

The present invention is characterized in that at least one metal touch joining plate 12 is provided continuously on a web 11 of a cowling unit 10 and a stranded wire 13 is continuously passed through an inner edge of the cowling unit 10, A prestress is introduced into the strand 13 at both ends of the culvert unit 10 to be continuously installed so that the metal touch joining plate 12 provided on the web 11 of the facing cage unit 10 is frictionally joined, In the case where a gap is generated between the metal touch joining plates 12 provided on the web of the facing culvert unit 10, an adhesive is injected or inserted between the metal touch joining plates 12 to control the spacing between the cage units 10 The re-metal-touch joining plate 20 is inserted and installed.

FIG. 3 is a perspective view showing a metal touch joint plate installed on a web of a cowling unit according to an embodiment of the present invention. In the present invention, a cowling unit 10 made of precast concrete is continuously installed, The metal touch junction plate 12 is embedded in the web 11 of the web 11 and the surface of the metal touch junction plate 12 is exposed on the surface of the web 11 and the strand 13 is passed through the inner edge of the cage unit 10 The continuous culvert unit 10 is connected and both ends of the series of culvert units 10 are provided with hydraulic organs 14 for introducing a prestress into the strand 13.

The metal touch joining plate 12 embedded in the cage unit 10 is made of steel or reinforced plastic. The metal touch joining plate 12 is formed of a rectangular or circular plate 15 having a predetermined thickness, And the thickness of the plate 15 is preferably 3 mm or more in consideration of the rigidity of the plate 15 and is embedded in the web 11 of the cage unit 10. [

The surface of the metal touch bonding plate 12 exposed on the surface of the web 11 of the cowling unit 10 is formed with a plurality of projections 17 to form a rough friction surface, 11, the plate 15 and the boss 16 are embedded and fixed.

Fig. 4 is a cross-sectional view showing that a metal-touch joint plate is frictionally joined to a web of a cowling unit according to an embodiment of the present invention. Fig. 4 is a perspective view of a cowling unit, The metal toughening plate 12 that is embedded in the web 11 of the cage unit 10 by the prestress introduced into the cage unit 10 by introducing the metal toughening plate 10, Thereby increasing the shear strength or shear frictional force of the cage unit joint.

The present invention using the post-tensioning method to increase the shear friction effects due to metal touch of the culvert units junctions introduced prestressing on the strand, wherein the prestressing tension is introduced into the strand and the 0.1f pu ~ 0.75f pu preferably, Where f pu is the tensile strength of the strand

The metal touch joining plate 12 is attached to the web 11 of the cowling unit 10 continuously and frictionally joined to the web 11 of the cowling unit 10 so that the metal touch of the cowling unit joining portion Thereby increasing the shear friction force.

The required surface area A PL of the metal-to-metal bonding plate 12 is calculated as A PL = μ × V P × A W / V f , where μ is the friction coefficient of the metal-touch joint plate, V f is the shear resistance, A W is the cross-sectional area of the bottom unit web and V P is the prestressing force.

As the surface area of the metal touch joint plate 12 increases, the shear frictional force of the cage unit joint increases, and the required surface area of the metal touch joint plate 12, the cross-sectional width of the cage unit web 11, The metal-touch joining plates 12 are divided into the metal-to-metal joining plates 12, and the metal-touch joining plates 12 are continuously arranged on the web 11 of the cowling unit 10, thereby increasing the shearing friction effect by the metal touch.

Since the metal-to-metal bonding plate 12 is simply buried in the web 11 of the cowling unit 10, which is the culvert unit junction, and is frictionally joined, a shear-key groove is formed in the prior art cowling unit junction, It is not significantly affected by the degree of flatness of the ground and the accuracy of construction, and it is possible to reinforce the cage unit joint portion while using the existing cage unit junction as it is.

FIG. 5 is a cross-sectional view showing a metal-to-metal bonding plate installed between metal-to-metal bonding plates of a cowling unit according to another embodiment of the present invention, in which an upper load is largely applied to a culvert unit, In the case where the separation between the culvert units at the culvert unit joining portion occurs largely, the metal material joining plate 20 is inserted and installed between the metal touch joining plates 12 provided on the web 11 of the cowling unit 10 facing each other So as to frictionally join the cage unit joint.

The metal-to-metal joining plate 20 is made of a steel or a reinforced plastic. Both sides of the metal-touch joining plate 20 form a rubbing surface with a plurality of protrusions 17 and are formed into a square or circular shape with a predetermined thickness, 12 so as to secure a predetermined shear frictional force.

When the gap between the culvert units is small, an epoxy-based bond, which is an adhesive (not shown), is used between the metal touch joining plates 12 provided on the web 11 of the cowling unit 10 facing each other, So that it can cope with the shearing friction of the roller 12.

FIG. 6 is a perspective view showing a construction process of connecting a culvert unit using a metal touch joint plate according to an embodiment of the present invention. In order to construct a culvert unit, a culvert unit 10, which is made of precast concrete, The metal-to-metal bonding plates 12 are continuously provided on the base 11 to be manufactured.

A prestressing tensile force is applied to the strand 13 at both ends of the connected cage unit 10 by means of hydraulic oil organs 14 at the inner edge of the culvert unit 10 which is continuously arranged And the cowling unit 10 is integrally connected.

At this time, the culvert unit joining portion supports the shear force acting on the culvert unit joining portion by frictionally joining the metal touch joining plates 12 buried in the web 11 of the culvert unit 10, The metal-to-metal bonding plates 20 are inserted between the touch-bonding plates 10 to frictionally bond the metal-touch bonding plates 20 to each other. When the spacing between the corresponding culvert units is small, an epoxy (not shown) Bond is injected and frictionally bonded.

After the connection between the culvert units is completed, the upper and side portions of the culvert unit 10 are reflowed, and the culvert is installed on the upper side of the culvert unit 10 to complete the culvert installation.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: culvert unit 101: web
102: foldable eye bolt 103: ring eyebolt
104: Shear key groove 105: Seismic pin
106: anti-earthquake pin coupling member 107: through hole
108: pin insertion hole 109:
10: culvert unit 11: web
12: Metal touch joint plate 13: Strand
14: Hydraulic long-term 15: Plate
16: b-shaped fixture 17: projection
20: Fitting material Metal touch plate
Vp: Prestress tensile force Vf: Shear friction force

Claims (6)

In a cage unit junction where two cage units face each other,
A metal touch bonding plate 12 is provided on the web 11 of the cowling unit 10 so that the surface of the metal touch bonding plate 12 is embedded in the web 11 so as to be exposed on the surface of the web 11 Installed,
A prestress is introduced into the strand 13 at both ends of the culvert unit 10 by means of the hydraulic oil organs 14 when the prestress is introduced into the inside of the culvert unit 10, The metal touch joining plates 12 provided on the web 11 of the unit 10 are frictionally joined to each other,
The metal-to-metal bonding plate (12)
A plate 15 formed in a rectangular or circular shape with a predetermined thickness and a claw-like fastener 16 integrally connected to the lower side of the plate 15. The surface of the plate 15 is formed with a plurality of projections 17 to form a friction surface To do
Wherein the metal-to-metal bonding plate is a metal-to-metal bonding plate. The metal material as claimed in claim 1, characterized in that a fitting metal-to-metal joining plate (20) is inserted and installed in a gap between the metal touch joining plates (12) provided on the web (11) Joining structure of cage unit using touch joint plate. The cowling unit joint structure according to claim 1, wherein an adhesive is injected into the gap between the metal touch joint plates (12) provided on the web (11) of the facing cage unit (10). The metal-to-metal bonding plate according to claim 1, wherein the surface area of the metal-
A PL = μ × V P × A W / V f ,
The A PL is the surface area of the metal-touch joint plate, the μ is the friction coefficient of the metal touch joint plate, the V P is the prestressing tension, the A W is and end surface of the culvert units webs, wherein V f is the shear strength Thing
Wherein the metal-to-metal bonding plate is a metal-to-metal bonding plate. delete The metal fitting according to claim 2, wherein the fitting metal-touch joint plate (20) is made of a steel material or a reinforced plastic material, and both side surfaces thereof form a rubbing surface roughened by a plurality of protrusions (17) Wherein the metal-to-metal bonding plate is a metal-to-metal bonding plate.
KR1020150052134A 2015-04-14 2015-04-14 Joint structure of culvert unit using metal touch connecting plate KR101740341B1 (en)

Priority Applications (1)

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KR1020150052134A KR101740341B1 (en) 2015-04-14 2015-04-14 Joint structure of culvert unit using metal touch connecting plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150052134A KR101740341B1 (en) 2015-04-14 2015-04-14 Joint structure of culvert unit using metal touch connecting plate

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KR101740341B1 true KR101740341B1 (en) 2017-05-26

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CN108385725A (en) * 2018-04-28 2018-08-10 安徽砼宇特构科技有限公司 A kind of strong concrete piping lane

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101027078B1 (en) * 2010-07-30 2011-04-05 아이에스동서 주식회사 Assembly type precast concrete closed conduit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100931949B1 (en) 2009-03-24 2009-12-15 주식회사 케이씨산업개발 Eyebolts, concrete box culvert having eye bolts connection using such eyebolts, and connecting structure of concrete box culvert unit
KR101348219B1 (en) 2013-05-21 2014-01-07 주식회사 금강피씨 Culvert laying earthquake-resistant pin

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101027078B1 (en) * 2010-07-30 2011-04-05 아이에스동서 주식회사 Assembly type precast concrete closed conduit

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