KR20150107545A - Elastic Connecting Apparatus for obstructing water used in a combining sections for the connected Concrete Members and the Method for elastic connecting Concrete Members with it - Google Patents

Elastic Connecting Apparatus for obstructing water used in a combining sections for the connected Concrete Members and the Method for elastic connecting Concrete Members with it Download PDF

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Publication number
KR20150107545A
KR20150107545A KR1020140030671A KR20140030671A KR20150107545A KR 20150107545 A KR20150107545 A KR 20150107545A KR 1020140030671 A KR1020140030671 A KR 1020140030671A KR 20140030671 A KR20140030671 A KR 20140030671A KR 20150107545 A KR20150107545 A KR 20150107545A
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South Korea
Prior art keywords
adhesive
elastic
concrete
joint
exponential
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KR1020140030671A
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Korean (ko)
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이창호
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주식회사 티엠이앤씨
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Priority to KR1020140030671A priority Critical patent/KR20150107545A/en
Publication of KR20150107545A publication Critical patent/KR20150107545A/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)

Abstract

According to the present invention, there is provided an expansive joining member for use in a joining part of a prefabricated concrete structure, comprising: an elastic fixing part formed of an elastic material fixed to the joining surfaces on both sides formed on opposing joining surfaces of mutually connected concrete members; ; Wherein the adhesive is provided on one side surface of the elastic fixing member body so as to be prebonded to the joint surface formed along the peripheral length of the joint surface of the one concrete member among the mutually connected concrete members, A first adhesive portion formed to be exposed by the first adhesive portion; And the adhesive is provided on the other side of the elastic fixing unit so that the adhesive is not exposed to the outside of the other side of the elastic fixing unit before the concave surfaces of the concrete members on the other side are pressed, The adhesive surface of the pressure-sensitive adhesive containing the concave coating is moved in a state in which it is drawn along the peripheral length of the joint surface of the other concrete member and moves close to the other side of the elastic fixing body And a second adhesive portion exposed to the outside of the elastic fixing body to be adhered to the fastening surface of the other concrete member.

Description

Technical Field [0001] The present invention relates to an elastic joint member for an index joint for a joint of a prefabricated concrete structure, and a joining method using the joining member.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an index joint member for a joint of a concrete structure, and more particularly, to an index joint member for a joint structure of a concrete structure such as an underground structure such as a concrete box, a sewage pipe, And between the joining portions interconnecting the independent members such as the PC segment constituting the prefabricated concrete structure in the building material such as the outer wall panel, the inner wall panel and the slab plate, It is possible to more reliably connect the concrete members while maintaining a good index even when the facing surfaces of the concrete members are widened due to the occurrence of displacement due to the grounding behavior after the connection, and furthermore, .

Currently, underground structures such as reinforced concrete culvert structures and storage tanks, which are provided in sewerage, waterway, communal, electric power, communication, communal, and passageway boxes, are buried in the lower grounds of roads and the like.

For example, a reinforced concrete underground structure can be constructed as a site piling structure, and a prefabricated PC segment structure for assembling a field-produced reinforced concrete PC (PC) (Precast) on site is used.

In order to interconnect the independent members such as the PC concrete members constituting the assembled PC segment structure, the mortar is generally injected into the mortar grooves formed on the facing surfaces of the mutually connected concrete members to provide interconnection, Has adopted a structure that compensates for the exponential property while allowing the exposing material made of a material such as a water expanding agent to adhere between the joint surfaces of the PC concrete members to be interconnected.

However, when a displacement occurs between the joint surfaces of the concrete members due to the ground subsurface or earthquake in the soft ground, the exponential barrier can not properly absorb the displacement, It is impossible to expect the elastic flexibility of the exponential barrier material at the joining position of the joint in the general joining method described above. Therefore, after the construction, the groundwater flows into the culvert structure A separate exponential reinforcement means is required to prevent leakage of the liquid that has been transferred to the pipeline along the inside of the culvert structure.

For this purpose, an elastic material inserted into the fastening grooves formed on both sides of the concave joint surfaces of the concrete members connected to each other and fixed with an adhesive by Japanese Patent Application Laid-Open No. 10-131319 (published on May 19, 1998) And the resilient connection portions connecting the expansion-type fixed portion main bodies on both sides and the expansion-type fixed portion main bodies on both sides formed are folded so as to be disposed between the expanding-type protruding portions on both sides, so that even when the facing faces of the concrete members are opened, To expose the elastic connection portion of the elastic member, thereby to buffer the distance therebetween, thereby reinforcing the exponential property.

However, according to this conventional technique, the expandable fixed body on one side of the exponential joint member, which is formed entirely of elastic material such as rubber, is first fixedly installed in the concave fastening groove of the joint surface of one of the concrete members, It is necessary to move the concrete member so that the concave engaging groove formed on the joint surface of the concrete member is fitted to the expandable fixed body on one side of the expansive joint member. However, the weight of the expandable fixed body on one side Elastic deformation of the elastic connection part in the folded shape occurs, and if the user does not pay much attention during the construction process, deflection may occur in a part of the extended fixed part of the non-fixed side, , So that the concrete member By the end it does not reach the complete fitting of the straight line as the concave coupling groove formed in the joint surface there is a problem in that the construction defects at the joint construction of the overall concrete structure.

According to the prior art, it is suitable for a structure in which concave coupling grooves are formed on the joint surfaces of the two concrete members. Concave coupling grooves are formed on the joint surfaces of one concrete member and convex coupling projections are formed on the joint surfaces of the other concrete member. There is a limit that is not suitable for the structure in which the electrode is formed.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the exponential joining member for joining concrete structures according to the above-described prior art, and it is an object of the present invention to provide a joining method for joining independent members such as PC segments constituting a prefabricated concrete structure, It is possible to more reliably connect the concrete members while maintaining a good exponential even when the opposite joint surfaces of the concrete members are widened due to the occurrence of displacement due to the grounding behavior after the construction is performed, .

According to an aspect of the present invention, there is provided an expansive joining member for use in a joining portion of a prefabricated concrete structure,

An elastic fixing body formed of an elastic material fixed to the fastening surfaces on both sides formed on opposing joint surfaces of the interconnected concrete members with an adhesive;

Wherein the adhesive is provided on one side surface of the elastic fixing member body so as to be prebonded to the joint surface formed along the peripheral length of the joint surface of the one concrete member among the mutually connected concrete members, A first adhesive portion formed to be exposed by the first adhesive portion; And

Wherein the adhesive is provided on the other side surface of the elastic fixing member body so that the adhesive is not exposed to the outside of the other side surface of the elastic fixing member body before the connection surface of the concrete member on the other side is pressed, The adhesive is stored in a state of being inserted into the inside of the main body, and when the adhesive surface formed by the peripheral length of the joint surface of the concrete member on the other side is moved close and the other side of the elastic fixing body is pressed And a second adhesive portion exposed to the outside of the elastic fixing body and provided to be adhered to the fastening surface of the other concrete member.

In this case, it is preferable that a material having good elongation and restoring property as well as water tightness is used as the elastic fixing part body. For example, a foamable synthetic resin such as foamable elastic rubber may be used, and a joint surface It is preferable to insert an adhesive member such as a double-sided adhesive tape between both ends of the protective cover sheet when the protective cover sheet is cut by the length of the peripheral length of the adhesive sheet. It is preferable to use them.

According to another aspect of the present invention, there is provided a joining method of a prefabricated concrete structure using the above-described elastic joining member for index,

The exponential elastic bonding member is attached to the joint surface formed along the peripheral length of the joint surface of the concrete member at one side of the interconnected concrete members and the adhesive applied so as to be exposed externally to one side constituting the first adhesive unit is attached to one side A primary adhesion step of an elastic joint member for an index to be adhered to a joint surface of a concrete member of the concrete member;

Index elastic bonding member adjacent to the joint surface formed along the peripheral length of the joint surface of the other concrete member among the concrete members interconnected to correspond to the second adhesive surface constituting the other side surface of the elastic joint member An adhesive preparation step; And

And the second adhesive surface constituting the other side surface of the exponential elastic bonding member is pressed against the engagement surface of the concrete member on the other side to press the elastic fixing body so that the pressure sensitive adhesive applied on the second adhesive surface of the exponential elastic bonding member And an exponential elastic bonding member which is fixed to the fastening surface of the concrete member on the other side while being exposed to the outside, and a secondary adhesion step of bonding the prefabricated concrete structure.

In addition, it is preferable that the joint surface of the concrete member on one side before the first adhesion step of the index elastic joint member and the joint surface of the concrete member on the other side before the second adhesion step of the index elastic joint member It is more preferable that the primer for the adhesive performance of the first adhesive portion and the second adhesive portion of the bonding member always be applied in advance.

According to the present invention, since the joints connecting the independent members such as the PC segment constituting the prefabricated concrete structure are elastically connected to each other, displacement due to the ground motion occurs after the construction, It is possible to maintain the excellent index property on the basis of the excellent elongation and restitution property of the elastic fixing body of the elastic joining member of the joining member, and furthermore, it is possible to provide the joining member of another concrete member It is possible to eliminate the inconvenience that the components of the joining member are separated from each other in the operation of fixing the joining members to each other so that the joining members can be precisely matched to each other.

1 is a perspective view showing an example of a state in which prefabricated concrete members such as a prefabricated PC culvert are connected to each other and joined together.
FIG. 2 is an enlarged view of part K1 of FIG. 1 in which one surface of an exponential elastic bonding member for a joint of a prefabricated concrete structure according to a preferred embodiment of the present invention is attached to a joint surface of a joint surface.
FIG. 3A is a cross-sectional view illustrating a process in which an exponential elastic bonding member for a joint of a prefabricated concrete structure according to a preferred embodiment of the present invention is first attached to one concrete member, and FIG. FIG.
Fig. 3B is a view showing an embodiment in which the outer shape of the elastic fixing body is changed in the embodiment of the exponential elastic bonding member shown in Fig. 3A; Fig.
Figs. 4 and 5 are views showing a state in which the other one of the concrete members is adjacent to the other one of the mutually connected concrete members in a state where the exponential elastic bonding members are installed as shown in Fig. 3A, Sectional view illustrating a process of further bonding and fixing the concrete member to be moved.
FIG. 6 is a cross-sectional view illustrating a state in which an exponential elastic joint member for a joint of a prefabricated concrete structure according to a preferred embodiment of the present invention maintains an exponential performance while elastically deforming when a horizontal displacement occurs in a concrete member between two concrete members connected to each other 1 < / RTI > of FIG.
FIG. 7 is a cross-sectional view illustrating a state in which an exponential elastic joint member for a joint of a prefabricated concrete structure according to a preferred embodiment of the present invention maintains an exponential performance while being elastically deformed when a vertical displacement occurs in a concrete member between two concrete members connected to each other 1 < / RTI > and K2 of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, an example of a state in which prefabricated concrete members such as a prefabricated PC culvert are connected to each other and joined together by using an exponential elastic bonding member for a prefabricated concrete structure according to an embodiment of the present invention is shown in FIG.

According to this, the exponential elastic bonding member 120 shown in Figs. 2 to 6 according to the present invention is disposed and used on the bonding surface 110 of the interconnected concrete member 100. [

In this case, a variety of methods can be used to connect the joint members of the concrete members 100, which are connected to each other. However, in the case of the fish culler shown in FIG. 1, The tension member 210 may be tensioned by the tension device 200 while connecting the end of the tension member 210 to the end of the tension member 210. [

2 to 5 show an exponential elastic bonding member for a joint of a prefabricated concrete structure according to a preferred embodiment of the present invention. In FIG. 2, one surface of the exponential elastic bonding member 120 is primarily made of one concrete 1 (A) and FIG. 3 (B) is an enlarged view of a portion of the joint surface of the member 100 in which the exponential elastic bonding member 120 Sectional view for explaining a process in which a concrete member 100 is attached to a concrete member 100 in a primary way and is shown by a cross-sectional view taken along line AA in FIG. 1 and FIG.

4 shows a state in which another concrete member is moved so that the mutually connected concrete members are adjacent to each other in a state where the exponential elastic bonding members are installed in one concrete member 100 as shown in FIG. FIG. 5 is a cross-sectional view illustrating a state in which the other side of the exponential elastic bonding member is further joined and fixed to a concrete member to be moved, and FIG. 5 is a sectional view of the state in which the bonding process is completed.

As shown in the figure, one preferred use of the expansive bonding member 120 according to the present invention is to provide a connection between the fastening surfaces 110 formed on the opposing bonding surfaces of the interconnected concrete members 100 At the junction of a typical concrete culvert structure that adopts a structure that compensates for the exponential while allowing it to adhere, the exposing junction member 120 according to the present invention can be used.

That is, the elastic fixing body 121 formed of an elastic material fixed to the fastening surfaces 110 formed on the opposing joint surfaces of the interconnected concrete members 100 with the adhesive agent 122a, 123a;

And is provided on one side surface of the elastic fixing body 121 and is pre-bonded to the joint surface 110 formed along the peripheral length of the joint surface of the concrete member on one side among the mutually connected concrete members 100 122a are exposed to the outside from one side of the elastic fixing body 121; And

The elastic securing body 121 is provided on the other side of the elastic securing body 121 and before the engaging surface 112 of the concrete member on the other side among the mutually connected concrete members 100 is pressed, The pressure sensitive adhesive 123a is applied and stored in a state in which the pressure sensitive adhesive 123a is recessed to the inside of the elastic fixing body 121 so that the pressure sensitive adhesive 123a is not exposed to the outside of the other side, The engaging surface 112 formed along the peripheral length of the elastic fixing body 121 is exposed to the outside of the elastic fixing body 121 to press the other side of the elastic fixing body 121, And a second adhesive portion formed to be adhered to the fastening surface 112. The indexable elastic bonding member 120 may be provided for the joint of the prefabricated concrete structure.

3A and 3B, the elastic bonding member 120 has a first adhesive portion formed by applying a pressure-sensitive adhesive 122a so as to be exposed outward from one side of the elastic fixing body 121, The pressure-sensitive adhesive 123a is applied and stored in a state in which the pressure-sensitive adhesive 123a is recessed to the inside of the elastic fixing body 121 so that the pressure-sensitive adhesive 123a is not exposed to the outside of the other side, The engaging surface 112 formed along the peripheral length of the elastic fixing body 121 is exposed to the outside of the elastic fixing body 121 to press the other side of the elastic fixing body 121, And a second adhesive portion provided so as to be adhered to the fastening surface 112, both of which are the same. As described above, the outer shape of the elastic fixing body 121 can be modified in various forms within the scope of the present invention.

On the other hand, as the elastic material forming the elastic fixing body 121, it is possible to use a material capable of elastically absorbing a high level of deformation rate (higher reproducibility) and water-tight When the concrete member is cut and installed by the length of the peripheral length of the joint surface of the concrete member on one side, an adhesive member such as a double-sided adhesive tape 120a is inserted between both ends of the adhesive member so that both ends are connected without leakage It is preferable to attach the protective cover sheet 125 so as to cover the entire surface of the adhesive portion and remove it before application (see the enlarged view of FIG. 2).

Hereinafter, a joining method of a prefabricated concrete structure using the above-described elastic joint member for an index will be described with reference to the accompanying drawings.

As shown in FIGS. 2 and 3A and 3B, a joint surface 100 formed along a peripheral length of a joint surface of a concrete member 100 of one of the mutually connected concrete members 100, The elastic bonding member 120 is attached to one side of the first adhesive member and the adhesive agent 122a applied to the one side of the first adhesive member is exposed to the outside, The primary adhesion step of the joining member 120 proceeds.

As shown in FIG. 4, the concrete members 100 are connected to each other so as to correspond to the second adhesive surface constituting the other side surface of the elastic elastic joint member 120, The second concrete adhesion preparation step of the elastic joint member 120 for exposing the adjacent joint surfaces 112 along the peripheral length of the surface of the concrete member 100 is performed, The tensile device 200 is connected to the steel wire 210, which is arranged to penetrate the tile portion of the box-shaped concrete member 100 through the end fixing device 220 as shown in FIG. 1, As shown in Fig.

When the secondary adhesive preparation step of the index elastic bonding member 120 progresses as described above, the secondary adhesion step of the exponential elastic bonding member reaches as shown in FIG. 5, whereby the exponential elastic bonding member The elastic fixing body 121 is pressed by pressing the second adhesive surface constituting the other side surface of the index elastic bonding member 120 to the engaging surface 112 of the concrete member 100 of the other side, The pressure sensitive adhesive 123a applied to the second adhesive surface is fixedly bonded to the bonding surface 112 of the other concrete member 100 while being exposed to the outside.

Here, the joint surface 110 of the concrete member 100 on one side before the first adhesion step of the index elastic bond member 120 and the joint surface 110 of the index elastic bond member 120 before the second adhesion step A primer (not shown) for always adhering to the adhesive 122a or 123a of the first adhesive portion and the second adhesive portion of the exponential elastic bonding member 120 is formed on the coupling surface 112 of the other concrete member 100, Is pre-applied.

As shown in FIGS. 6 and 7, the expansive joint member 120 adhesively fixedly coupled between the joint surfaces 110 and 112 of the joint surfaces of the concrete members 100, Even if the mortar which is filled in the mortar grooves of the connection portion due to the generation of the horizontal spacing displacement d or the vertical spacing displacement h in which the spacers 100 are separated from each other may lose the exponential ability, The elastic fixing body 121 of the fixing surfaces 120 and 120 elastically absorbs the displacement with an excellent elongation while preventing the separation of the pressure sensitive adhesives 122a and 123a of the pressure bonding portions 110 and 112 So that it is possible to keep the index performance capable of preventing the inflow of ground water or the like from the outside.

At this time, in the case of a culvert structure such as a sewer pipe, leakage of sewage (liquid) from the inside of the concrete member to the outside is prevented.

4 to 7 and the description thereof are shown and described based on the embodiment of the resilient fixing body 121 of the exponential elastic bonding member 120 shown in Fig. 3a, The same description can be applied to the case of the modification of the elastic fixing body 121 of the elastic elastic member 120 for exponential shown in Fig.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

100: Concrete member
110, 112: fastening surface
120: Exponential elastic bonding member
121: elastic fixing member body
122a and 123a:
120a: double-sided tape
125: Protective cover sheet

Claims (4)

An exponential joining member for use in a joining portion of a prefabricated concrete structure,
An elastic fixing body formed of an elastic material fixed to the fastening surfaces on both sides formed on opposing joint surfaces of the interconnected concrete members with an adhesive;
Wherein the adhesive is provided on one side surface of the elastic fixing member body so as to be prebonded to the joint surface formed along the peripheral length of the joint surface of the one concrete member among the mutually connected concrete members, A first adhesive portion formed to be exposed by the first adhesive portion; And
Wherein the adhesive is provided on the other side surface of the elastic fixing member body so that the adhesive is not exposed to the outside of the other side surface of the elastic fixing member body before the connection surface of the concrete member on the other side is pressed, The adhesive is stored in a state of being inserted into the inside of the main body, and when the adhesive surface formed by the peripheral length of the joint surface of the concrete member on the other side is moved close and the other side of the elastic fixing body is pressed And a second adhesive portion formed to be exposed to the outside of the elastic fixing body and to be adhered to the fastening surface of the other concrete member.
The elastic member for an index according to claim 1, wherein a foamed elastic rubber is used as the elastic fixing member body. A joining method of a prefabricated concrete structure using the elastic joining member for index according to claim 1 or 2,
The exponential elastic bonding member is attached to the joint surface formed along the peripheral length of the joint surface of the concrete member at one side of the interconnected concrete members and the adhesive applied so as to be exposed externally to one side constituting the first adhesive unit is attached to one side A primary adhesion step of an elastic joint member for an index to be adhered to a joint surface of a concrete member of the concrete member;
Index elastic bonding member adjacent to the joint surface formed along the peripheral length of the joint surface of the other concrete member among the concrete members interconnected to correspond to the second adhesive surface constituting the other side surface of the elastic joint member An adhesive preparation step; And
And the second adhesive surface constituting the other side surface of the exponential elastic bonding member is pressed against the engagement surface of the concrete member on the other side to press the elastic fixing body so that the pressure sensitive adhesive applied on the second adhesive surface of the exponential elastic bonding member And a secondary adhesive step of exposing the exterior member to an exponential elastic joining member to be fixedly bonded to the joint surface of the concrete member while exposed to the outside.
The method according to claim 3, wherein the joint surface of the concrete member on one side before the first adhesion step of the index elastic bonding member and the joint surface of the concrete member on the other side before the second adhesion step of the index elastic bonding member Wherein the primer for preliminarily applying the primer to the first adhesive portion and the second adhesive portion of the exponential elastic bonding member for adhesion performance with the adhesive is applied in advance.
KR1020140030671A 2014-03-15 2014-03-15 Elastic Connecting Apparatus for obstructing water used in a combining sections for the connected Concrete Members and the Method for elastic connecting Concrete Members with it KR20150107545A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019039787A1 (en) * 2017-08-23 2019-02-28 동양대학교 산학협력단 Anchor device enabling checkup of tensile force by naked eye and method for installing same
JP2021059949A (en) * 2019-10-09 2021-04-15 鹿島建設株式会社 Joining method and joining structure
KR102266481B1 (en) 2020-12-10 2021-06-17 한국건설기술연구원 Connecting structure between concrete transport tube segments for hyper speed transportation system using elastic sealing block, and connecting method for the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019039787A1 (en) * 2017-08-23 2019-02-28 동양대학교 산학협력단 Anchor device enabling checkup of tensile force by naked eye and method for installing same
JP2021059949A (en) * 2019-10-09 2021-04-15 鹿島建設株式会社 Joining method and joining structure
KR102266481B1 (en) 2020-12-10 2021-06-17 한국건설기술연구원 Connecting structure between concrete transport tube segments for hyper speed transportation system using elastic sealing block, and connecting method for the same

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