KR200426308Y1 - Rapid repairing and reinforcing system for slab - Google Patents

Abstract

The present invention relates to an emergency repair reinforcement system for a damaged portion of the slab damaged load capacity, has an installation structure that can be quickly repaired when a damaged portion occurs in the bridge or building slab, the reinforcement support panel formwork Simultaneous role and reinforcement role, and the reinforcement support panel is made of a transparent body, so it is possible to check the precision of construction when filling the filler and additional cracks after construction, etc. To provide a system.

Emergency repair reinforcement system for the damaged portion of the slab according to the present invention is a slab through-hole formed so that the internal reinforcing bar exposed through the crushed concrete to the damaged portion of the slab; A reinforcing support panel which is opposed to the bottom surface of the slab so that the open lower portion of the slab through hole is closed and is transparent in the shape of a plate and provided with a catch at the top thereof; A connection fixing member having one side connected to the locking hole of the reinforcing support panel and the other side connected to the exposed inner rebar to fix the reinforcement support panel to the bottom surface of the slab; Filled in the slab through-hole is characterized in that it comprises a filler integral with the reinforcing support panel the connection fixing member and the internal reinforcing bars.

Slab, Reinforcing Bar, Through Hole, Reinforcement Support Panel, Hanger, Connecting Fixing Member, Filling Material

Description

RAPID REPAIRING AND REINFORCING SYSTEM FOR SLAB}

1 is a perspective view showing a state in which the slab through-holes are formed for the damaged portion of the slab as an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a state in which the reinforcing support panel is fixed to the slab through-hole shown in FIG.

Figure 3 is an enlarged view taken from the main part in Figure 2, showing a resilient coupling process of the connection fixing member to the coupling hole of the latch.

* Explanation of symbols for main parts of drawing

B: Bridge P: Pier

S: slab 1: concrete

2: internal reinforcing bar 10: slab through hole

20: reinforcing support panel 21: hook

22: coupling hole 30: connection fixing member

31: departure preventing member 40: frame reinforcement

The present invention relates to an emergency repair reinforcement system for a damaged portion of the slab weakened load capacity, more specifically, it can be quickly repaired reinforcement when a damaged part such as cracks, breaks occurred in the slab such as bridges or buildings It has an installation structure, the reinforcement support panel is integrated with the slab and transparent, and the emergency repair reinforcement system for the damaged parts of the slab that can be confirmed in a timely manner, the precision of the construction and the safety after construction.

A slab such as a bridge or a building is a structure that primarily supports loads of vehicles, people, goods, and equipment, etc., and the slab is appropriately able to withstand the expected design loads according to the purpose and use of the construction area. Designed and constructed.

However, the slab is poorly designed and poorly constructed, or even if it is normally constructed, heavy vehicles frequently pass through the bridge, chemical changes caused by the use of salt and winter calcium chloride, Due to various factors, such as working beyond the allowable load, the slab has a weak load capacity, and cracks, droppings, deformations, and breakages proceed. If left untreated, the slab causes serious problems such as collapse of the structure.

When introducing an example of a conventional construction method for repairing the damaged slab, such as cracks, deformation, breakage, etc., to expose the reinforcing bars to form a hole by crushing and removing concrete with a concrete crusher to the damaged portion of the slab, In order to fix and support the formwork in the lower part of the hole, a plurality of scaffoldings and clubs are installed on the ground or the lower layer slab to fix the formwork to the bottom of the slab so that the lower part of the hole is closed. After the concrete is poured into the hole formed in the slab and the curing of the cast concrete is completed, the copper slabs and scaffolds, which fixed and supported the formwork, were removed and the form was removed to repair the slab in which the damage was advanced.

However, this conventional slab repair method has a complicated construction process. In other words, the construction process is complicated due to the hassle of separately installing the scaffolding and the clubbing to fix the formwork to the bottom of the slab formed with holes and the hassle of removing the installed scaffolding and the clubbing after the construction is completed. Due to this, there was a problem in that the construction period is long and the construction cost is increased.

Especially, when the slab of the bridge is made high due to the surrounding topography, the installation work of scaffolding and copper bar to fix the formwork to the bottom of the slab is very difficult and dangerous, and if there is sea or river under the bridge, separate equipment Fixing the formwork on the bottom of the slab, such as fixing the formwork using a medium supported on the piers by using a bridge there was a very difficult problem.

 And when the construction period for repairing the slab damaged part on the bridge or overpass becomes long, the traffic must be controlled for long or long periods for some or all of the bridges and overpasses. There was a problem that caused indirect social losses due to traffic jams.

And when introducing an example of a conventional construction method for repair and reinforcement for damaged parts such as cracks, dropping, deformation, breakage of the slab, to form a hole for repair reinforcement by crushing and removing concrete to the damaged part of the slab, As a substitute, the metal panel is placed under the slab's hole, and the metal panel is supported and fixed by using a scaffold and a copper bar, and concrete is poured into the hole and cured to integrate the metal panel and the slab to repair and reinforce the damaged slab. It was.

However, the slab repair and reinforcement method using the metal panel has a problem in that the metal panel is heavy due to the material characteristics, so that the workability is not easy and a separate lifting equipment must be used when the construction area is increased. In addition, since the metal panel is an opaque body, additional cracks and the like cannot be easily confirmed from the bottom of the construction site after construction, and thus there is a problem in that it cannot secure safety in a timely manner. In addition, since the material is made of metal, corrosion progresses over a long period of time, and thus cannot be used for a long time.

And since the scaffolding and copper barriers to be installed at the time of construction and to be removed after the completion of construction, as a result of this, as described above, the construction process is complicated and the construction period is long, resulting in an increase in construction cost.

The present invention has been researched and developed in order to solve the conventional problems as described above, the purpose of the present invention is that within several hours when a damaged part such as cracks, dropping, deformation, breakage in the slab of the bridge or building, etc. It has an installation structure that can be quickly repaired and reinforced, and the reinforcement support panel serves as a formwork when filling the filling material and a reinforcing role integrated on the bottom of the slab after filling the filling material, and the reinforcing support panel is made of a transparent body so that it can be poured. It is to provide an emergency repair reinforcement system for the slab damaged parts that can ensure the timely safety by ensuring the precision of construction and confirming additional cracks after construction.

Emergency repair reinforcement system for the damaged parts of the slab according to the present invention for achieving the above object is a slab through hole formed so as to expose the internal reinforcing bar through the concrete to the damaged parts of the slab; A reinforcing support panel which is opposed to the bottom surface of the slab so that the open lower portion of the slab through hole is closed and is transparent in the shape of a plate and provided with a catch at the top thereof; A connection fixing member having one side connected to the locking hole of the reinforcing support panel and the other side connected to the exposed inner rebar to fix the reinforcement support panel to the bottom surface of the slab; Filled in the slab through-hole is characterized in that it comprises a filler integral with the reinforcing support panel the connection fixing member and the internal reinforcing bars.

In addition, the emergency repair reinforcement system for the damaged portion of the slab according to the present invention is a plurality of latches of the reinforcing support panel protrudes on the upper surface of the reinforcing support panel is arranged in a grid at a predetermined interval, but each engaging hole is provided with a through hole, The connection fixing member is characterized in that the both ends are formed to be elastically bent between the ends so as to be inserted into each of the engaging holes of the engaging holes elastically.

형상 또는

형상 또는

형상으로 구부러져 있는 것을 특징으로 한다.In addition, in the emergency repair reinforcement system for the damaged portion of the slab according to the present invention is the connection fixing member between the both ends

Shape or

Shape or

It is characterized by being curved in shape.

In addition, in the emergency repair reinforcement system for the damaged portion of the slab according to the present invention is formed a plurality of coupling holes of the locking holes, the arrangement shape is to form a matrix of a predetermined interval and the height difference between the coupling holes corresponding to each row It is characterized by.

In addition, the emergency repair reinforcement system for the damaged portion of the slab according to the present invention is the both ends of the connection fixing member is coupled through the coupling hole of the locking hole and the end of the separation prevention member for preventing the departure from the locking hole is further coupled It is characterized by.

In addition, the emergency repair reinforcement system for the damaged portion of the slab according to the present invention is characterized in that the edge reinforcement connected to the inner reinforcing bars exposed around the edge of the slab through hole is further installed.

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

1 is a perspective view showing a state in which the slab through-hole is formed for the damaged portion of the slab as an embodiment of the present invention, Figure 2 is a reinforcing support panel fixed to the slab through-hole shown in FIG. Figure 3 is a perspective view showing a state, Figure 3 is an enlarged view taken from the main part in Figure 2, showing a resilient coupling process of the connection fixing member to the coupling hole of the locking mechanism.

Referring to the emergency repair reinforcement system for a slab damaged part according to the present invention schematically, the slab through hole formed so that the internal reinforcing bar 2 is exposed by crushing the concrete (1) to the damaged part of the slab (S) (10) ), And a reinforcing support panel 20 facing the bottom surface of the slab S so that the open lower portion of the slab through-hole 10 is closed and having a transparent shape in the shape of a plate and having a catch 21 at the top thereof, A connection fixing member connected to the locking holes 21 of the reinforcing support panel 20 and connected to the exposed inner rebar 2 to fix the reinforcing support panel 20 to the bottom surface of the slab S. 30) and a filler (not shown) which is filled in the slab through-hole 10 and integrated with the reinforcing support panel 20, the connection fixing member 30 and the internal reinforcing bar (2).

Emergency repair reinforcement system for the slab provided in the present invention is applied to all structures having reinforced concrete slabs, such as bridge slabs or building slabs.

The emergency repair reinforcement system for the damaged portion of the slab according to the present invention will be described in more detail.

First, the slab through hole 10 will be described.

1 illustrates a case of a bridge B installed in a river or an ocean, and a slab through hole 10 is formed in the slab S installed on the bridge P in the bridge B. Referring to FIG.

The slab through-hole 10 is to secure the area to be repaired after the removal of the weakened durability, as shown in Figure 1 cracks in the slab (S) of the bridge (B) by a number of factors For example, the concrete slab is broken and penetrated by the concrete crusher, and the inner reinforcing bar 2 is exposed to expose the internal reinforcing bar 2 to form the slab through hole 10.

The zone setting for forming the slab through-hole 10 may be determined by visually identifying a state in which damage such as cracking has progressed according to the case, but if more precise zone setting is required, concrete such as a schmidt hammer is required. As a result of the strength test through the strength tester, it is preferable to find the area where the durability is weakened and set the slab through-hole 10 area.

The shape of the slab through-hole 10 is preferably a rectangular shape so as to facilitate the installation of the reinforcing support panel 20 to be described later, but may be circular.

Next, the reinforcing support panel 20 will be described.

As shown in Figures 2 and 3, the reinforcing support panel 20 is opposed to the bottom of the slab (S) so that the open lower portion of the slab through-hole 10 is closed, the reinforcing support panel 20 is slab (S) It is fixed to the bottom surface of the slab (S) by the connection fixing member 30 is supported by the internal reinforcing bar (2).

Introducing a simple work example for abutting the reinforcing support panel 20 to the bottom surface of the slab (S), one side of the rope (not shown) via the slab through-hole 10 to lower down after reinforcing support panel 20 When connected to the pull up to simply contact the bottom of the slab (S), and then fixed to the reinforcing support panel 20 with the connection fixing member (30).

The reinforcing support panel 20 serves as a formwork when the filler (not shown) is filled in the slab through-hole 10 and at the same time integrated with the slab (S) after construction to reinforce the slab (S). Do this.

When the reinforcing support panel 20 is brought into contact with the bottom surface of the perforated slab S so as to sufficiently perform the form and reinforcement roles, the width d of the contact surface may be about half the thickness of the slab S. (See Figure 2).

The reinforcing support panel 20 has a flat plate shape having a predetermined thickness, and a plurality of locking holes 21 protrude from the upper surface thereof, and end portions of the connection fixing members 30 are inserted and coupled to the locking holes 21. Through holes 22 are formed to be penetrated.

The latch 21 is preferably arranged in a lattice at a predetermined interval so as to facilitate the connection operation of the connection fixing member 30 to be described later, the coupling hole 22 of the hook 21 and the other latch 21 adjacent thereto. The coupling holes 22 may be opposed to each other.

Referring to the preferred shape of the latch 21 in detail with reference to Figures 2 and 3, the latch 21 is a structure in which the two plates protrude vertically to meet at a right angle, that is, the horizontal cross section 'b' shape As the two plates, a plurality of coupling holes 22 are formed respectively.

In addition, the latch 21 may have one protruding plate, or a structure in which three protruding plates meet at right angles, that is, a horizontal cross section, may be a 'c' shape. The cross section may be variously formed, such as having a 'ㅁ' shape.

And the engaging hole 22 of the engaging port 21 is formed in one or more, if formed in a plurality is formed so as to have a height difference from each other.

The difference in height between the plurality of coupling holes 22 is because the internal reinforcing bar 2 exposed to the slab through hole 10 may have a different installation height from the bottom of the slab S for each slab S. This is to determine the position where the connection fixing member 30, which connects the internal reinforcing bar 2 and the reinforcing support panel 20 to be selectively inserted and coupled among the plurality of coupling holes 22 to correspond.

Preferred arrangement shape between the plurality of coupling holes 22 is to form a matrix of a predetermined interval and is formed so that the height difference between the coupling holes 22 corresponding to each row.

As an example, the matrix arrangement of the through-holes is illustrated in two columns and four rows in FIG. 3. Each line spacing was set to a distance, a column spacing was set to a distance b, and the height difference between two coupling holes 22 corresponding to each row was shown to be a distance of a1, which is half of a.

The reinforcing support panel 20 may be injection molded to form a transparent body. In order to improve the strength as a reinforcing material, the fiber is preferably made of a panel of a transparent body prepared by impregnating transparent resin. The fiber may be a variety of glass fiber, carbon fiber, aramid fiber and the like, the transparent resin may be used epoxy, unsaturated polyester, polycarbonate and the like. More preferably, the reinforcing support panel 20 may be made transparent by impregnating epoxy resin in glass fiber.

Since the reinforcing support panel 20 is formed of a transparent body, when the filler is filled in the slab through-hole 10, the panel can be seen to check the construction state such as whether or not voids are generated, and thus construction precision can be achieved. Afterwards, the panel can be seen through the panel to easily check for additional cracks, so that timely measures can be taken to ensure the safety of the slab (S).

Next, the connection fixing member 30 will be described.

The connection fixing member 30 is to fix the reinforcing support panel 20 to the bottom surface of the through the slab (S) as shown in Figures 2 and 3, one side of the hook of the reinforcing support panel 20 It is connected to the sphere 21 and the other side is connected and supported by the inner reinforcing bar 2 exposed to the slab through hole 10.

 The connection fixing member 30 is elastically bent upwardly between both ends so that the left and right ends thereof can be inserted into the coupling holes 22 between the engaging holes 21 adjacent to each other. Thus, the connection fixing member 30 is supported by a central upper portion bent upwards over the inner reinforcing bars 2, and both ends of the connection fixing member 30 are elastically coupled to the coupling hole 22 of the locking hole 21 of the reinforcing support panel 20. The structure is inserted and coupled.

형상 또는

형상 등 다양하게 상방으로 구부러져 형성될 수 있다.The connection fixing member 30 is between the left and right ends

Shape or

It may be formed by variously bent upwards, such as shape.

형상으로 구부러진 경우에는 그 상단 꺽인 부분이 내부 철근(2)에 걸리도록 한 것으로 이럴 경우 보강받침패 널(20)을 지지하면서 수평방향에 대한 고정력이 더 확보된다. The connection fixing member 30 is between the left and right ends

When bent in shape, the upper bent portion is to be caught by the inner reinforcing bar (2) In this case, while holding the reinforcing support panel 20 is secured in the horizontal direction.

형상으로 구부러진 경우에는 그 구부러진 상단에 1개 이상 다수개의 내부 철근(2)이 걸리어 지지되도록 하기 위함이다. 이때 그 구부러진 상단에 다수의 내부 철근(2)이 걸릴 경우 수평방향에 대한 고정력 확보를 위하여 그 구부러진 부분에서 내부 철근(2)과 접촉되는 부분에는 철근 정착을 위한 요철부가 형성될 수 있다. 즉 상기 연결고정부재는 좌우 양단 사이가

형상으로 구부러질 수 있다. The connection fixing member 30 is between the left and right ends

If the shape is bent in order to be supported by one or more of the plurality of internal reinforcing bar (2) is bent on the bent top. In this case, when a plurality of internal rebars 2 are caught at the bent upper end, convex and convex portions for reinforcing bar reinforcement may be formed in the bent part in contact with the internal reinforcing bars 2 to secure a fixing force in the horizontal direction. That is, the connection fixing member is disposed between the left and right ends

Can be bent into shape.

Since the connection fixing member 30 is bent between the left and right ends, when the external force is applied to bring the left and right ends closer to each other, the left and right ends of the connection fixing member 30 are designed to return to their original positions.

The connection fixing member 30 is connected to the exposed internal reinforcing bar 2 of the slab through hole 10 and is supported elastically in the coupling hole 22 of the engaging hole 21 of the reinforcing support panel 20. The process of insertion coupling will be described in detail with reference to FIG. 3.

As shown in FIG. 3, the connection fixing member 30 has the center bent upper part caught by the inner reinforcing bar 2 of the slab S, and the operator puts an external force so that the left and right ends of the lower part come closer to each other. Then, by removing the external force in the direction to be inserted into the specific coupling hole 22 of the locking hole 21, both ends thereof are simply inserted into the coupling hole 22.

When coupling the left and right both ends of the connection fixing member 30 to the coupling hole 22 of the locking hole 21, the specific coupling hole so that the reinforcing support panel 20 can be strongly adhered to the bottom surface of the slab (S) through Select (22) as appropriate to allow insertion.

Both left and right ends of the connection fixing member 30 are coupled to the coupling hole 22 of the locking hole 21 to have a length that is exposed, and the exposed both ends of the coupling hole of the locking hole 21 are respectively exposed. A departure prevention member 31 for preventing departure from 22 may be further coupled.

The release preventing member 31 has a fixed pin shape as shown in FIG. 3, and pinholes through which the fixing pins are inserted are formed at both left and right ends of the connection fixing member 30.

 The separation preventing member 31 may be coupled by a bolt. That is, the left and right ends of the connection fixing member 30 may be fastened by bolts.

The connection fixing member 30 is integrated with the filler when the filler is filled in the slab through-hole 10 in a state that is installed in the slab through-hole 10 also serves as a reinforcing material.

On the other hand, the edge reinforcing member 40 may be further installed around the edge of the slab through hole 10. In more detail, the edge reinforcing material 40 is disposed around the edge of the slab through-hole 10 and connected to the exposed rebar, thereby increasing the binding force with the exposed rebars, and then the slab through-hole 10. When the filler is filled in, it is integrated with the filler to distribute the load evenly to each internal reinforcing bar (2) to increase the reinforcement, while suppressing excessive deformation of the joint surface between the existing concrete (1) and the filler of the slab (S). By reinforcing the bonding force to prevent cracks on the joint surface.

The edge reinforcing material 40 may be used as a reinforcing material, but more preferably, it is made of a rod-shaped material made of a fiber, such as carbon fiber, glass fiber, which is light in weight and has high strength. The cross-sectional shape of the edge reinforcing material 40 may be formed in various ways, such as a 'b' shape, 'c' shape, circular shape, plate shape.

In the interior of the slab through-hole 10, the durability of the slab (S) can be further increased by filling a filler by installing a different reinforcement material separately from the edge reinforcement (40).

Next, the filler (not shown) will be described.

The filler is filled in the slab through-hole 10 to the inner concrete of the reinforcing support panel 20, the connection fixing member 30, the inner reinforcing bar (2), the edge reinforcing material 40 and the slab through-hole (10) It is integrated with (1).

The filler may be made by concrete pouring, but when the urgency to complete the reinforcement of the slab (S) within a few hours is required, superhard cemented mortar may be used.

Epoxy mortar may be used when greater strength than the non-condensed cement mortar is required.

The filler may be further mixed with reinforcing fibers of short fibers for strength reinforcement.

When the filler is filled in the slab through hole 10, the upper surface of the reinforcing support panel 20, the inner surface of the slab through hole 10 (1, concrete crushed surface), the inner reinforcing bar (2), the connection fixing member ( 30), it is good to fill the filler after applying the adhesive epoxy to the edge reinforcing material (40). This is to further increase the bonding force to the contact surface between the filler filled in the slab through-hole 10 and each member / part in contact with it to be tightly integrated.

When summarizing and explaining the emergency repair reinforcement system for the damaged parts of the slab according to the present invention configured as described above, through the slab (S) to break through the concrete (1) to expose the internal reinforcing bar (2) through the slab through hole ( 10), the reinforcing support panel 20 abuts the bottom surface of the slab (S) so that the open lower portion of the slab through-hole 10 is closed, the reinforcing support panel 20 is the slab (S) ) So that the connection fixing member 30 is bent to the bottom of the inner reinforcing bar 2 so as to be fixed to the bottom surface, and both left and right ends thereof are coupled to the coupling holes 22 of the engaging holes 21 of the reinforcing support panel 20. After inserting and engaging the separation prevention member 31 on both left and right ends thereof, and then connecting the edge reinforcement 40 to the exposed inner reinforcing bar (2) around the edge of the slab through hole (10), and then filling To the slab through hole (10) The slab can be damaged simply and quickly by integrating the reinforcing support panel 20, the connection fixing member 30, the internal reinforcing bar 2, the edge reinforcing material 40, and the inner concrete 1 of the slab through hole 10. Emergency repairs to the site are made.

Although the foregoing has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to vary the present invention without departing from the spirit and scope of the present invention described in the utility model registration claims below It will be appreciated that modifications and variations can be made.

As described above, the emergency repair reinforcement system for the damaged parts of the slab according to the present invention by using a connection fixing member connected to the internal reinforcing bar is easily fixed to the bottom of the slab by installing a reinforcement support panel, such as scaffolding or club No fixed equipment is required, so the time required for installation of scaffolding or clubbing, or the time required for dismantling of scaffoldings, clubs, etc. is not required, and the construction time is dramatically shortened. There is an advantage that the construction cost is very saved.

And the reinforcement support panel is a formwork at the time of filling the filling material and integrated at the bottom of the slab after the filling material and at the same time serves to reinforce the slab and also, the reinforcing support panel is transparent to see through the reinforcing support panel precision construction is Of course, when additional cracks occur after construction, it is easy to grasp and take timely measures, which has the advantage of ensuring safety.

In addition, the edge reinforcement is installed around the edges of the slab through-holes, which increases the reinforcement by evenly distributing the load to each inner reinforcing bar when integrated with the filling material. There is an advantage of preventing cracks in the joint surface by reinforcing the bonding force by suppressing excessive deformation of the joint surface between the inner concrete and the filler.

Claims (6)

Slab through hole formed so that the internal reinforcing bar is exposed by crushing the concrete through the damaged portion of the slab; A reinforcing support panel which is opposed to the bottom surface of the slab so that the open lower portion of the slab through hole is closed and is transparent in the shape of a plate and provided with a catch at the top thereof; A connection fixing member having one side connected to the locking hole of the reinforcing support panel and the other side connected to the exposed inner rebar to fix the reinforcement support panel to the bottom surface of the slab; Emergency repair reinforcement system for the damaged parts of the slab, characterized in that the filler is filled in the slab through hole and the reinforcing support panel is integrated with the connection fixing member and the internal reinforcing bar. According to claim 1, wherein the latching of the reinforcing support panel is a plurality of protruding on the upper surface of the reinforcing support panel is arranged in a grid at a predetermined interval, each engaging opening is provided with a through hole, the connection fixing member is both ends of the locking holes Emergency repair reinforcement system for the damaged parts of the slab, characterized in that the elastically bent between the two ends so that each can be inserted into the coupling hole elastically The method of claim 2, wherein the connection fixing member is between the both ends

Shape or

Shape or

Emergency repair reinforcement system for the slab damaged part, which is bent in shape The method of claim 2, wherein the engaging holes of the engaging holes are formed a number of the shape of the arrangement to form a matrix of a predetermined interval and the slab damage site, characterized in that the height difference between each other between the coupling holes corresponding to each row. Emergency repair reinforcement system The method of claim 2, wherein both ends of the connection fixing member is coupled through the coupling hole of the locking hole and the end of the slab damage site characterized in that the separation prevention member for further separation from the locking hole is further coupled to the end. Emergency repair reinforcement system The emergency repair reinforcement system according to any one of claims 1 to 5, wherein an edge reinforcement is further provided around the edge of the slab through-hole to be connected to exposed inner rebars.

Images