KR100733086B1 - A joint device and construction method of concrete structure - Google Patents

Abstract

A joint device of concrete structures is provided to join concrete structures strongly, to prevent the permeation of moisture from the inside and outside through a joint of concrete structures without using hydrophilic seal, and to prevent a concrete structure from being cracked and damaged by expansion and contraction according to a variation of temperature by securing a space on a joint of concrete structures using a space guarantee unit. The joint device(100) of concrete structures comprises a pair of water leak prevention units(110) installed on upper and lower parts at a certain distance to prevent the permeation of water to a joint of a concrete structure and composed of a pair of fixed frames(112,112a) provided with many through holes(113), a primary elastic member(120) coupled between the fixed frames and provided with through holes(122) formed on the same line as the through holes of the fixed frames, a bolt(124) and a nut(126) penetrated the through holes of the fixed frames and the through holes of the primary elastic member to fix each other, a secondary elastic member(130) placed in a space(114) of the fixed frames to cut off the infiltration of water to a joint of the concrete structure, an operation support unit(140) installed on the upper water leak prevention unit and composed of a pair of operation support members(142) installed on the upper part of the primary elastic member and corresponded to each other in the longitudinal direction and a third elastic member(146) installed between the operation support members and attached on the primary elastic member by adhesives to prevent the leakage of water, and a space guarantee unit(210) composed of a plate put over a pair of water leak prevention units and provided with many screw holes, and a spacer member(214) coupled to the screw hole of the plate by a bolt(216).

Description

A joint device and construction method of concrete structure

1 is a perspective view showing a concrete structure joint according to the present invention.

Figure 2 is a front sectional view showing a concrete structure joint according to the present invention.

3 is an enlarged view of a portion A of FIG. 2;

4 is an enlarged view illustrating a portion B of FIG. 2.

Figure 5 is a bottom perspective view showing a state in which the connection device of the present invention is connected.

Figure 6 is a cross-sectional view showing a state in which the concrete structure joint according to the invention is installed.

7 is a cross-sectional view showing a state in which the concrete is expanded by heat, showing the working relationship of the present invention.

Figure 8 is a cross-sectional view showing a state in which the concrete shrinkage by heat, showing the working relationship of the present invention.

Figure 9 is a cross-sectional view showing a conventional concrete structure coupling device.

[Description of Symbols for Main Parts of Drawing]

100: joint device 110: leak prevention means

112, 112a: fixed frame 113, 122: through hole

114: space portion 115: opening portion

118: support anchor 120, 130, 146: elastic member

124, 216: bolt 126: nut

140: driving support 142: driving support member

210: space securing means 212: plate body

214: spacing member 218: spacer

The present invention relates to a concrete structure jointing device and a method of installation, and more particularly to ensure that the joint between the concrete structure is firmly made and at the same time to prevent the penetration of moisture from the inside of the concrete structure to the joint side or from the outside of the concrete structure to the joint side. And, it relates to a concrete structure jointing device and installation method to prevent the penetration of water into the gap between the jointing device.

In general, the underground car sidewalk is formed of a box-shaped concrete structure, and divided into several sections. In other words, after the formwork is installed in the width and length of the predetermined length, the concrete is poured and cured. After the construction of one section is completed, the section is divided by the planned length in such a way as to continue in the next length direction. Construction is done.

This is due to the temperature change, that is, when the temperature is high, the concrete structure is expanded, and when the temperature is lowered, the concrete structure is contracted to the initial state.

Therefore, when building the length of the concrete structure of about 20m or more to ensure the clearance space every about 15-20m. If the gap space is not secured, the concrete structure is not contracted and expanded due to environmental temperature change, causing cracks in the concrete structure.

However, in the related art, there is no separate means for securing the clearance space of the concrete structure, and most of them secure the clearance space by using styrofoam between the structure and the connection portion of the structure, but this is due to the pressure generated during the concrete placement. Since it is not compressed to secure the clearance space, the concrete structure may not be prevented from cracking due to shrinkage and expansion of the concrete structure.

In addition, a water-expansion index agent is installed in the middle part to prevent water from penetrating into the gap space between the sections and sections of the concrete structure. The expansion of the water ensures the space, the water expansion index after the curing of the concrete is restored to its original state there was a problem that can not block the space secured by the existing expansion when the water inside and outside the concrete structure penetrates.

In addition, the water-expandable index agent is gradually cured when a predetermined time elapses, the water leakage between the concrete structures by the loss of its function, that is, the ability to expand while absorbing moisture to seal the gap to maintain airtightness There was a problem that occurs.

 Accordingly, the present applicant has filed a Korean Patent Registration No. 10-424982 concrete structure jointing device to solve this problem.

9 is a cross-sectional view showing the domestic Patent Registration No. 10-424982 concrete structure joint device.

As shown in the related art, the first blocking plate 11 and the second blocking plate 12 having the same shape are provided in parallel with each other at a predetermined interval to constitute the main body 1, and the first blocking plate 11 is provided. ) And a filling space 13 to fill the joint filter 14 is formed between the second blocking plate 12, both ends of the filling space 13 is sealed with a stretch rubber 15, the first A plurality of anchor bolts 16 protrude symmetrically from each other at the side surfaces of the blocking plate 11 and the second blocking plate 12, and the first and second blocking plates 11 and 12 each have an outer portion at predetermined intervals. The first and second blocking plates 17 and 21 are provided on the side surface, and the flanges 22 are formed on the side surfaces of the first and second blocking plates 11 and 12.

The conventional concrete structure jointing device configured as described above has a disadvantage in that a lot of parts constituting the main body 1 take a lot of time, and thus, the structure is complex and a lot of time is required in manufacturing.

In addition, the elastic rubber to prevent leakage 15 is seated on the first and second barrier plates 11 and 12 without a separate fixing means to prevent leakage, the water leaked through the elastic rubber 15 Is again prevented from leaking again in the first water holding plate 17 of the first and second blocking plates 11 and 12, but this prevents water already introduced into the gap from the middle of the concrete structure. There was a disadvantage in that cracks and leaks occur in the concrete structure.

And, during installation, the head part of the anchor bolt 16 is fixed to the base steel frame using a fixing means such as welding to maintain the gap between the first and second blocking plates 11 and 12 and to fix the same at the same time. The fixing of the first and second blocking plates 11 and 12 is very complicated and takes a lot of time.

The present invention has been made in order to solve the above disadvantages, while making the joint between the concrete structure is made firmly and at the same time through the connecting joint of the concrete structure without the use of a water expansion index agent to penetrate the moisture in the inner and outer parts Its purpose is to prevent it.

In addition, a space securing means is provided to secure the space at the joint part of the concrete structure to prevent the concrete structure from being cracked and damaged by expansion and contraction according to the environmental temperature change in the cured state after the concrete is placed. The purpose is.

The present invention for achieving the above object in the joint structure of the concrete structure, the leakage preventing means for preventing leakage in the joint portion of the concrete structure, and in connection with the leakage preventing means to secure a space in the joint portion of the concrete structure It is characterized by consisting of a means for ensuring space for.

Here, the leakage preventing means is characterized in that a pair is installed to correspond to each other at predetermined intervals in the upper, lower.

Further, the leak prevention means is provided with a first elastic member coupled between a pair of fixed frames provided to correspond to each other, characterized in that consisting of a bolt for fixing the fixed frame and the first elastic member to each other.

"형상인 것을 특징으로 한다.And, the fixed frame is "

"Characteristic.

"형상의 고정프레임에는 내측 공간부에 제2탄성부재가 더 구비된 것을 특징으로 한다.Where "

"The fixed frame is characterized in that the second elastic member is further provided in the inner space portion.

"형상의 고정프레임의 개방부에 지지앵커가 더 구비된 것을 특징으로 한다.Also, the "

"A support anchor is further provided in the opening of the fixed frame of the shape.

And, both sides of the first elastic member is characterized in that the connection groove is formed in which the connection member is adhesively fixed.

In addition, the upper end of the leakage preventing means is characterized in that the driving support is installed.

Here, the driving support portion is provided on the upper portion of the first elastic member is provided with a pair of driving support members corresponding to each other in the longitudinal direction, the third elastic adhesively fixed to the first elastic member between the driving support member It is characterized in that the member is coupled.

Furthermore, the pair of driving support members are further provided with a fixed anchor directed downward.

In addition, the space securing means is characterized in that the plate body is installed between the pair of leakage preventing means, and one side surface of the plate body is coupled to several gap holding members for supporting the gap to be maintained.

Here, the plate body is characterized in that any one of plywood or iron plate.

In addition, the spacing member is formed of a rectangular cylinder, characterized in that the bolt is fixed to the plate body.

And, in the installation joint section installation method of the concrete structure, provided to correspond to each other. An elastic member fixed between the adhesive and the bolt is provided therebetween, and the fixing frame is formed on the upper and lower construction joints of the concrete structure, which is formed on the outside and has a support anchor fixed to the foundation reinforcing bar. Placing concrete after installation to cure, fixing the other support anchor of the fixed frame fixed to the cured concrete structure to the reinforcement of the concrete foundation frame installed in succession, space between the upper and lower fixed frame installed It is installed to ensure the step of installing a plate body provided with a gap maintaining member on one side, characterized in that consisting of the step of placing the concrete after installing the plate body.

In addition, the connection grooves are formed on both sides of the first elastic member of the fixed frame installed in the lower, characterized in that it comprises the step of installing the fixed frame by fixing the elastic member of the fixed frame adjacent to the fixed frame. .

In addition, the driving support is installed on the upper portion of the fixed frame, the driving support is provided with a traveling support member on both sides, the center portion is provided with a third elastic member is installed to protrude to the top of the concrete structure It features.

Hereinafter, with reference to the accompanying drawings for the concrete structure joint according to the present invention will be described in detail.

1 is a perspective view showing a concrete structure joint according to the present invention, Figure 2 is a front sectional view showing a concrete structure joint according to the present invention, Figure 3 is an enlarged view showing a portion A of Figure 2, Figure 4 2 is an enlarged view showing a portion B, Figure 5 is a bottom perspective view showing a state in which the connection device of the present invention is connected.

1 to 5, the concrete structure joint apparatus 100 of the present invention is provided with a leakage preventing means 110 to prevent water penetrating into the joint portion of the concrete structure.

Here, the leakage preventing means 110 is installed in a pair so as to correspond to each other at predetermined intervals up and down.

Furthermore, the leak preventing means 110 is provided to correspond to each other at a predetermined interval is provided with a pair of fixing frames 112, 112a having a plurality of through holes 113, the fixing frame 112, 112a The first elastic member 120 is coupled between the fixing frame 112, 112a and the through-hole 122 is formed on the same line as the through-hole 113 of the fixing frame 112, 112a, the fixing frame 112 ( A bolt 124 and a nut 126 that pass through the through hole 113 of the 112a and the through hole 122 of the first elastic member 120 to be fixed to each other are provided.

In this case, before fixing the first elastic member 120 with the bolts 124 between the fixing frames 112 and 112a, the contact surfaces of the fixing frames 112 and 112a and the first elastic member 120 are fixed to each other. Since the adhesive is applied and fixed using the bolt 124, the first elastic member 120 is tightly fixed to the fixing frames 112 and 112a to more firmly maximize the waterproof effect.

"형상으로 형성되어 길이방향으로 관통되는 공간부(114)가 형성되고 상기 공간부(114)의 일측에 개방부(115)가 형성되되 상기 개방부(115)는 외측으로 향하도록 하여 한쌍의 고정프레임(112)(112a)이 형성되고, 이 사이에 제1탄성부재(120)가 결합된다.In addition, the fixed frame 112, 112a is "

"Shaped to form a space portion 114 penetrating in the longitudinal direction is formed and an opening portion 115 is formed on one side of the space portion 114, but the opening portion 115 is directed to the outside fixed a pair of Frames 112 and 112a are formed, and the first elastic member 120 is coupled therebetween.

At this time, when the first elastic member 120 is coupled between the fixing frames 112 and 112a, the bolts 124 and the nuts 126 are tightened to the maximum to secure the fixing frames 112 and 122a and the first. The elastic members 120 are in close contact with each other to prevent leakage of water penetrating from the outside.

Here, connecting grooves 123 are formed at both sides of the first elastic member 120 of the leakage preventing means 110 installed at the lower end to connect the joint apparatuses with each other as illustrated in FIG. 5. When the fixing frames 112 and 112a are in close contact with each other and fixed by welding means, such as welding, different first elastic members 120 are brought into close contact with each other to form one “+” shape, and the “+” shape connection is performed. The connection member 128 is inserted into the groove 123 and fixed by the adhesive means, and thus, when the joint apparatus 100 is connected to each other, leakage is prevented.

In addition, a second elastic member 130 is further provided in the space 114 of the fixing frames 112 and 112a to penetrate the outer surface of the fixing frames 112 and 112a to penetrate into the joint of the concrete structure. Shut off the water.

In addition, a support anchor 118 is fixed across the opening 115 of the fixing frames 112 and 112a by a fixing means such as welding, and the support anchor 118 is formed in a steel frame which is a concrete foundation frame. Fixing by fixing means such as welding, and serves to prevent the opening portion 115 from being opened by the pressure of the concrete filled in the space portion 114 of the fixing frame 112, 112a during concrete pouring. .

Then, the driving support unit 140 is installed on the upper portion of the leakage preventing means 110 installed on the upper of the leakage preventing means 110 installed on the upper and lower.

Here, the driving support unit 140 is provided on the upper side of the first elastic member 120, a pair of traveling support members 142 corresponding to each other in the longitudinal direction is provided, between the driving support member 142 A third elastic member 146 is provided on the upper portion of the first elastic member 120 to be secured to prevent leakage by fixing means such as an adhesive.

Further, the traveling support member 142 is provided with a fixed anchor 144, a part of which is fixed to the concrete.

On the other hand, the driving support member 142 of the driving support unit 140 is located on the upper end of the concrete structure, the upper surface of the driving support member 142 is installed to be in line with the upper portion of the asphalt pavement surface, Non-shrink mortar is installed between the driving support unit 140 and the asphalt.

In addition, the space securing means 210 is provided with a plate body 212 so that the upper and lower portions are respectively sandwiched between a pair of leakage preventing means 110 installed on top and bottom of each other, the plate body 212 of One side, that is, the spacing member 214 is coupled to maintain the spacing in the direction of the concrete structure is already cast concrete.

Here, a plurality of screw holes 213 are formed in the plate body 212, and are screwed into the screw holes 213 of the plate body 212 by bolts 216 to pass through the gap retaining member 214. Done.

In addition, the space maintaining member 214 is formed in a rectangular cylindrical shape is coupled to a plurality in the longitudinal direction of the plate body 212.

In addition, the plate 212 may be used by selecting any one of plywood or iron plate, but it is preferable to use plywood in terms of convenience and economical handling.

In addition, the plate body 212 is provided with a plurality of spacers 218 fixed to the concrete structure already cured to fix the plate body 212.

Referring to the functional relationship of the concrete structure joint device of the present invention configured as described above are as follows.

 Figure 6 is a stage shaving showing a state in which the concrete structure joint according to the present invention is installed.

As shown in the present invention, first, the installation of the leakage preventing means 110 on the lower portion of the joint during construction of the concrete structure, but the support anchor 118 of the leakage preventing means 110 is the basic frame of the concrete structure When it is fixed to the rebar by welding means such as welding is completed the installation of the leakage preventing means (110).

In this state, when the concrete is poured and cured, the concrete structure is completed, and then the support anchor 118 on the opposite side fixed to the cured concrete structure is fixed to the reinforcement of the foundation frame of the next concrete structure, which is subsequently installed. Between the lower leakage preventing means 110 is installed a plate body 212, which is a space securing means 210, the plate body 212 is spaced apart from the concrete structure already cured, the space portion is formed by the gap maintaining member 214 To be fixed to the spacer 218.

When the concrete is poured and cured in this state, the installation of the joint apparatus 100 is completed in the joint of the concrete structure and the concrete structure as shown in FIG. 6.

By curing the concrete structure in this way, in the process of curing the concrete structure leakage preventing means 110 to prevent leakage in the joint and prevent the occurrence of cracks during expansion and contraction due to the temperature change of the concrete structure Space securing means 210 is provided to secure the space so that it can be.

  As such, when the concrete structure fitting device is installed as shown in FIG. 6, in the winter season when the temperature is low, the space between the joints is maintained in the same manner as when the concrete structure is first installed, and when the temperature increases in summer, that is, the concrete structure is shown in FIG. 7. As the expansion structure is expanded, the space maintaining member 214 and the bolt 216 are crushed by the expanding pressure of the concrete structure as shown in FIG.

In addition, when the temperature is lowered, the expanded concrete structure is contracted back to its original state.

At this time, the spacing maintaining member 214 is installed to secure the space in the joint portion during the initial curing of the concrete structure, even if the concrete structure is contracted as shown in Figure 8 after expansion is in a crushed state.

On the other hand, if the installation of the concrete structure coupling device in this way to prevent leakage to the joint portion by the binding force of the fixing frame 112, 112a and the first elastic member 120 of the leakage preventing means 110 installed on the upper and lower. At this time, the water penetrating the outer portion of the fixing frame 112, 112a is blocked by the second elastic member 130 provided in the space portion 114 of the fixing frame 112 (112a). do.

And, explaining the installation method of the joint section of the concrete structure according to the present invention.

The present invention provides a method for installing a construction joint section of a concrete structure, the first elastic member 120 is provided to correspond to each other and fixed between the bolts 124, is formed on the outside is fixed to the foundation reinforcement A pair of fixing frames 112 and 112a on which the anchors 118 are formed are installed in the upper and lower construction joint sections of the concrete structure.

"형상의 형성되고 홈부에는 제2탄성부재(130)가 구비되고, 상기 고정프레임(112)(112a)의 상부에는 상기 제1탄성부재(120)의 상부에 고정되는 제3탄성부재(146)가 구비되고, 이 양측으로는 주행지지부재(142)가 구비된 주행지지부(140)가 설치된다.Here, the fixed frame 112, 112a is "

The third elastic member 146 is formed in the shape and is provided with a second elastic member 130 in the groove, and fixed to the upper portion of the first elastic member 120 on the fixing frame 112, 112a. Is provided, on both sides is provided with a travel support unit 140 is provided with a travel support member 142.

After the fixing frames 112 and 112a are installed, the concrete is smashed and cured, and after the concrete is cured, the other supporting anchors 118 of the fixing frames 112 and 112a fixed to the concrete structure are successively connected. It is fixed to the reinforcing bar, the installed concrete foundation frame.

In addition, it is installed in order to secure a space between the fixing frame 112, 112a installed on the upper and lower, but one side is provided with a plate body 212 is provided with a space maintaining member 214.

Here, the plate 212 is fixed to the concrete structure already cured by the plurality of spacers 218.

Then, after installing the plate body 212 is to construct the joint section of the concrete structure by the repetitive step of pouring and curing the concrete.

In addition, the connection frame 123 is formed on both sides of the first elastic member 120 of the fixed frame 112, 112a installed in the lower, and the fixed frame (112) adjacent to the fixed frame (112, 112a) The connecting member 128 is installed to fix the first elastic member 120 of the 112 and 112a.

In the above, a preferred embodiment of a concrete structure joint apparatus according to the present invention has been described. However, the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible to do this, which also belongs to the scope of the present invention.

The present invention configured as described above has an effect of preventing the occurrence of cracks due to the expansion pressure between the concrete structures even if the expansion and contraction of the concrete structure occurs by forming a space portion between the joints between the concrete structures. .

In addition, the leakage from the joint between the concrete structures is blocked from the outer side of the concrete structure to prevent the weakening and cracking of the concrete structure due to the leakage has the effect of reducing the maintenance cost.

In addition, the structure is simpler than in the prior art, and the installation at the time of construction also has the effect that the installation can be easily performed as compared with the conventional art.

In addition, the plate body is provided with a plurality of interval holding member has the effect of preventing the plate body is destroyed by the pressure generated when placing the concrete.

Claims (16)

In the joint of a concrete structure, Leak prevention means provided with a pair to correspond to each other at predetermined intervals in the upper and lower parts to prevent leakage in the joint portion of the concrete structure, Plates are installed between the pair of leak preventing means in order to secure space in the joints of the concrete structure in connection with the leak preventing means, and one side of the plate is provided with several gap maintaining members for maintaining a gap therebetween. Concrete structure joints, characterized in that composed of a combined space ensuring means. delete The method of claim 1, The leakage preventing means is provided with a first elastic member coupled between a pair of fixed frames provided to correspond to each other, the concrete structure, characterized in that consisting of an adhesive and bolts for fixing the fixed frame and the first elastic member to each other Joints. The method of claim 3, wherein The fixed frame is "

Concrete structure fittings characterized in that the shape. The method of claim 4, wherein remind "

"Shaped fixed frame is a concrete structure jointing device characterized in that the second elastic member is further provided in the inner space portion. The method of claim 5, remind "

"Concrete fittings, characterized in that the support anchor is further provided in the opening of the fixed frame of the shape. The method according to any one of claims 3 to 6, Concrete structure jointing device characterized in that the connecting groove is formed on both sides of the first elastic member is bonded to the connection member. The method according to any one of claims 3 to 6, Concrete structure jointing device, characterized in that the driving support is installed on the upper end of the leakage preventing means. The method of claim 8, The driving support part is provided on the upper portion of the first elastic member and provided with a pair of driving support members corresponding to each other in the longitudinal direction, the third elastic member is adhesively fixed to the first elastic member between the driving support member Concrete structure fittings, characterized in that coupled. The method of claim 9, The pair of traveling support members is a concrete structure jointing device, characterized in that further provided with a fixed anchor directed downward. delete The method of claim 1, The plate body is a concrete structure jointing device, characterized in that any one of plywood or iron plate. The method of claim 1 or 12, The gap maintaining member is formed of a rectangular cylinder, the concrete structure jointing device, characterized in that fixed to the plate with a bolt. In the installation method of construction joint section of concrete structure, A first elastic member is provided to correspond to each other and is fixed between the bolts, the outside of the fixing frame is formed in the upper and lower construction joint section of the concrete structure, the fixing frame formed with a support anchor fixed to the base reinforcement, Placing concrete after installing the fixed frame to cure, Fixing the other support anchor of the fixed frame fixed to the cured concrete structure to a reinforcing steel reinforcement foundation, which is installed in succession, A step of installing a plate body provided with a space keeping member on one side, which is installed to secure a space between the fixing frames installed on the upper and lower parts, Concrete structure joint installation method characterized in that the step consisting of curing the concrete after installing the plate body. The method of claim 14, Forming connection grooves on both sides of the first elastic member of the fixed frame installed in the lower, and the fixed frame and the elastic member of the adjacent fixed frame is fixed to the concrete structure comprising the step of installing a fixed frame How to install joint section. The method according to any one of claims 14 to 15, The driving support is installed on the upper portion of the fixed frame, the driving support is provided with a driving support member on both sides, and the third elastic member is installed in the center portion, characterized in that it comprises the step of protruding to the top of the concrete structure Concrete structure joint section installation method.

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