KR20100133693A - Composite panel for strenthening of construction and it's working process for earthquake-resistance - Google Patents

Abstract

PURPOSE: An earthquake-proof reinforced composite panel and an earthquake-proof reinforcement construction method using the same are provided to improve the structural properties of a building wall, such as the flexibility and the resistance against bending or crack, through stress distribution. CONSTITUTION: An earthquake-proof reinforced composite panel comprises a honeycomb reinforcing material(10) which is coated for electric insulation, a power supply which is connected to the honeycomb reinforcing material for the heating in winter season, a plurality of fixing members(20) which are fixed to a wall on one side and coupled to the frame of the honeycomb reinforcing material on the other, repair mortar(110) which is filled in the cells of the honeycomb reinforcing material, and a plurality of panels(30) which are installed in a lattice pattern with the perimeters contacting each other.

Description

Composite panel for strenthening of construction and it's working process for earthquake-resistance

The present invention relates to a panel composite installed in a building wall and a seismic reinforcement construction method, and more specifically, to fix a honeycomb reinforcement in which a plurality of hexagonal cells are formed to an existing wall, and shrinkage in the cell of the honeycomb reinforcement. After filling the high-strength repair mortar, by fixing a plurality of finish panels in a grid pattern on the outer side of the honeycomb reinforcement, as well as the remodeling of the exterior wall of the building as well as the improvement of resistance to bending or cracking through stress distribution of the building wall. By increasing the structural performance, the seismic strength of the walls can be greatly improved, and the seismic reinforcement panel composite which uses not only the heating function by providing power to the electrically insulating coated honeycomb reinforcement, but also in the field construction, and using the same It relates to a seismic reinforcement construction method.

In general, Korea is recognized as a relatively safe area from earthquakes, but in recent years due to the increasing frequency of earthquakes, interest in seismic repair and reinforcement methods for existing concrete buildings or major concrete facilities, such as bridges, tunnels, or offshore structures, etc. This is rising.

Considering this situation, Korea has implemented the earthquake-related regulations in 2005 and introduced more reinforced seismic design regulations to force new buildings and major new concrete facilities.

However, existing buildings and facilities that are not subject to reinforced seismic design regulations are not well considered for earthquakes, and are not expected due to poor seismic performance due to deterioration damage or deterioration of strength due to years of use. In this case, not only direct damage due to breakage or collapse, but also social and economic losses due to reconstruction are caused.

In particular, buildings that are used by many people, such as schools and hospitals, are likely to cause enormous casualties due to the collapse of the building during an earthquake, and in the case of major power facilities, telecommunications facilities, or dangerous goods handling facilities, Of course, the loss of lives and disasters may occur due to secondary fires.

Therefore, the existing seismic evaluation and seismic reinforcement regulations have been newly established for major buildings and concrete facilities, and seismic repair and reinforcement are recommended to meet the seismic design standards.

Unlike the seismic design method applied to new buildings, the seismic reinforcement method is designed to simplify the reinforcement method and shorten the construction period in consideration of the peculiarity of the existing facility, environment of use, or economic feasibility. It is important.

Therefore, the conventional seismic repair reinforcement method adds the same member as that used in existing buildings or facilities in order to increase the rigidity or ductility of existing buildings, and reinforces it by increasing its own cross-sectional area, or walls of existing buildings or facilities. A method of embedding or attaching wire mesh, reinforcing bars, steel sheets, FRP panels or fibrous reinforcement materials has been used.

However, the conventional seismic reinforcement method has the following problems.

First, in the case of increasing the cross-sectional area of the existing building members, there is a limit to the increase of the cross-sectional area due to the site conditions and the construction period becomes long, and the construction is difficult, and the actual use area of the building is reduced or interference with other facilities. Due to this problem, there was a problem that sufficient reinforcement could not be achieved. Second, when additional reinforcement such as wire mesh or steel sheet is added, the desired strength can be secured due to the rigidity of the reinforcement, but the stress of the structure itself due to the weight of the reinforcement itself Not only increased, but there was a problem that measures to prevent corrosion of the reinforcement, and third, when the fiber reinforcement is used, its own weight is small and the effect of increasing the strength can be obtained, but the price of the fiber reinforcement is only expensive In addition, there was a problem such as overlapping construction due to insufficient strength increase. A conventional reinforcement method as described above has a problem in the need for a separate finishing construction into a double construction and the cost for the reinforcement and renovation to the renovation of buildings.

The present invention has been made to solve the above problems, firstly, the structure of the seismic reinforcement panel composite is simple to facilitate the construction of the site, as well as to minimize the stress added to the existing wall or structure by reducing its own weight Second, the construction process is simple, so that it is easy to maintain. Third, through the stress distribution of the building wall, the seismic strength is greatly increased by increasing the structural performance such as resistance to bending or cracking, impact resistance and ductility. Fourth, the winter heating is possible by installing the power supply to the electrical insulation coated honeycomb reinforcement, and fifth, the exterior construction using a separate finishing material, etc. is required by using a panel that can be exterior construction. No seismic reinforcement panel which can perform remodeling of building and seismic reinforcement at the same time It intended to provide an earthquake-proof reinforcement construction method using this copolymer and.

In order to achieve the above object, the seismic reinforcement panel composite of the present invention is composed of a plurality of frames such that a plurality of hexagonal cells forming a predetermined space are formed in isolation, and the surface of the honeycomb reinforcement is formed with an electrical insulation coating, winter heating In order to fix the honeycomb reinforcement to the power supply is installed to the honeycomb reinforcement, the one side is fixed to the wall and the other side is a plurality of fixing members coupled to the frame of the honeycomb reinforcement, the honeycomb reinforcement Repair mortar is filled in each of the cells, and fixed to the mortar so that the lower surface is in close contact with the honeycomb reinforcement, the outer peripheral surface is configured to include a plurality of panels that are installed in a grid pattern in close contact with each other.

The honeycomb reinforcement of the present invention can be produced by electro-insulated plating of iron or hot dip galvanized steel sheet.

In addition, the honeycomb reinforcement may be further provided with a plurality of reinforcing bars installed through the frame to cross each other in the cell of each hexagonal structure.

In addition, the repair mortar of the present invention is preferably used as a corrosion inhibitor, zinc powder and graphite powder is added, anti-corrosive seismic mortar to which the fiber material for preventing crack diffusion is added.

On the other hand, the panel of the present invention is preferably formed on the outer surface of the nano-ceramic coating having a performance such as non-flammability, stain resistance, discoloration resistance.

In addition, the seismic reinforcement construction method of the present invention is a reinforcement fixing step of fixing the honeycomb reinforcement to the wall with a fixed bolt, the power supply installation step of installing a power supply capable of supplying power to the honeycomb reinforcement, the cell of the honeycomb reinforcement Mortar filling step of filling the mortar to a predetermined height, the panel is installed on the honeycomb reinforcement, but the coupling portion bent to the outer peripheral surface of the panel is fixed to the wall by fixing bolts and the ends of the coupling portion to be in close contact with each other Panel fixing step of covering the honeycomb reinforcement by placing a plurality of panels in a grid pattern, and a backup material injection step of constructing a backup material in the groove formed between the adjacent panels and silicon implanting silicon on the backup material It is configured to include a filling construction step consisting of an injection step.

As described above, the present invention has the effect of reducing the construction time and cost as well as the cost of maintenance as well as the site construction and maintenance is easy, and secondly, due to its own weight reduction It is easy to secure structural safety by minimizing stress applied to existing walls or structures. Third, structural performance such as resistance to wall bending or cracking, impact resistance and ductility is increased, and seismic strength is greatly improved. Fourth, by connecting the power supply to the honeycomb reinforcement coated with electrical insulation, the heating effect can be obtained in winter, and fifth, the seismic reinforcement and exterior construction can be done at the same time. There is an effect to reduce the.

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

Figure 1 shows a partially exploded perspective view of the seismic reinforcement panel composite of the present invention, Figure 2 shows a perspective view of a fixing member provided in the seismic reinforcement panel composite of the present invention.

As illustrated in FIG. 1, the seismic reinforcement panel composite of the present invention includes a honeycomb reinforcement 10, a power supply 50, a fixing member 20, a mortar 110, and a panel 30.

The honeycomb reinforcement 10 is composed of a plurality of frames 15 so that a plurality of cells 16 having a hexagonal structure forming a predetermined space is formed in isolation, and is formed to have a predetermined thickness.

The honeycomb reinforcement 10 has a bending piece 11 corresponding to one side of the regular hexagonal cell 16 and a straight piece 13 corresponding to the length of another side of the regular hexagon alternately along the longitudinal direction. A plurality of strip-like members are connected to each other in a state in which the straight pieces 13 are in close contact with each other and are sequentially formed on the same plane.

At this time, the band members formed in a predetermined width may be coupled to each other by using welding or adhesives, or may be coupled to each other by forming a catching part 17 so as to fit each other in a straight line 13 facing each other. Could be.

Meanwhile, the reinforcing material is not limited to the honeycomb reinforcing material 10 in which the cells 16 of the regular hexagonal structure are formed, and the frame 15 may be configured to form various types of cells such as a square or a pentagon in addition to the regular hexagon.

Therefore, the honeycomb reinforcement 10 has a large number of hexagonal cells 16 formed therein, and thus has a large stress dispersing effect and excellent structural dynamics. Thus, honeycomb reinforcement 10 has tensile strength, compressive strength, bending strength, resistance to cracking, shear strength, Structural performance, such as impact resistance and ductility is increased, it is possible to significantly improve the seismic strength due to excellent physical properties against external impact or deformation.

Here, the honeycomb reinforcement 10 is excellent in adhesive strength with the concrete matrix, it will be preferable to be made of a metal material such as steel, which is cheaper than carbon fiber.

On the other hand, the honeycomb reinforcement 10 may be fabricated as a hot-dip galvanized steel sheet which is faster in ionization than iron in addition to steel or SUS (steel use stainless), and the rust resistance is improved due to the electrical sacrificial anode reaction.

The hot-dip galvanized steel sheet is not only excellent in corrosion resistance to external damage due to the presence of zinc and iron in the form of a compound, as well as excellent weldability and workability.

Meanwhile, the power supply 50 is connected to the honeycomb reinforcement 10 to supply power to the honeycomb reinforcement 10 to have a heating function, and a power supply having a conventional structure may be used. , To supply power to the honeycomb reinforcement 10 so that the frame 15 of the honeycomb reinforcement 10 forms a heater line.

At this time, the honeycomb reinforcement 10 is preferably applied to the electrical insulation coating, the electrical insulation coating may be used an electrical insulation varnish (varnish) paint.

Therefore, the power supply 50 is to prevent the damage or damage of the wall due to the shrinkage or freezing of the winter structure as well as to obtain a heating effect.

The power supply 50 may be connected to a controller 55 that is separately installed externally, thereby controlling heating temperature or time.

Meanwhile, the fixing member 20 serves to fix the honeycomb reinforcement 10 to the wall 100 of an existing building or facility, and the other side of the fixing member 20 is fitted to the frame 15 of the honeycomb reinforcement 10. The honeycomb reinforcement 10 is fixed by being fixed to the wall 100.

As shown in the enlarged view of FIG. 1 and FIG. 2, the fixing member 20 is fixed to the insertion part 23 and the wall 100 that are elastically coupled to the frame 15 of the honeycomb reinforcement 10. It consists of 25.

The insertion part 23 is formed to be spaced apart from both sides of the fixing member 20, but consists of a pair of pressing pieces (21, 22) facing each other.

The pressing pieces 21 and 22 are bent in the same direction so as to be spaced apart from each other so as to be extrapolated to the frame 15 of the honeycomb reinforcement 10, but the front end portion is fixed outward so that the frame 15 can be easily inserted. The angularly inclined guide portions 21a and 22a are formed and are in close contact with each other such that the frames 15 of the honeycomb reinforcement 10 are elastically coupled to each other.

Meanwhile, between the lower ends of the two insertion parts 23, the fixing piece 25 is provided to protrude in a direction perpendicular to the insertion part 23.

At this time, the fixing piece 25 is formed with a through hole 26 so that the fixing bolt (anchor) 20a penetrates and is fastened to the wall 100.

The through hole 26 is preferably formed as a long hole to facilitate the fastening position adjustment of the fixing bolt (20a).

Therefore, the fixing member 20 is inserted portion 23 is extrapolated to the frame 15 of the honeycomb reinforcement 10 is elastically coupled, the fixing piece 25 is fastened to the wall 100 by the fixing bolt (20a) As a result, the honeycomb reinforcement 10 is fixed to the wall 100.

In this case, the fixing member 20 is coupled to each of a plurality of specific bending pieces 11 of the honeycomb reinforcement 10, but is not limited thereto, and may be coupled to the straight pieces 13 of the frame 15. In accordance with the characteristics of the wall 100 or the work site situation, an appropriate number may be combined with the honeycomb reinforcement 10.

In addition, the fixing member 20 may be made of a metal material such as steel or SUS, but is not limited to the structure as described above, and forms a hook portion of various hook shapes on one side so that the frame 15 can be inserted and supported, and the other side of the wall. It may be made of a structure for fixing to (100).

Meanwhile, the mortar 110 is filled in the cells 16 of the hexagonal structure with the honeycomb reinforcement 10 fixed to the wall 100.

In this case, the mortar 110 may be a non-shrink high strength repair mortar 110, and may be filled to an appropriate height inside the cell 16 in consideration of its own weight and construction conditions.

On the other hand, the panel 30 is fixed to the wall 100 to support the honeycomb reinforcement 10 and serve as a finish while the lower side is in close contact with the honeycomb reinforcement 10, the outer peripheral surface is in close contact with each other The plurality is fixed to the wall 100 to be arranged in a grid pattern.

At this time, the panel 30 is provided with a proper size of a square or rectangular shape, the outer peripheral surface is provided with a coupling portion 35 is formed by bending the front end one more time in the outer direction after being bent downward.

In the central portion of the coupling portion 35, the fixing bolt (anchor) 36a is penetrated so that the coupling holes 36 may be penetrated to the wall 100, respectively.

Accordingly, the panel 30 forms an outer circumferential surface having a predetermined thickness by the coupling part 35, and the coupling hole 36 formed in one coupling part 35 may be formed in plural according to the size of the panel 30. There will be.

Panel 30 is in close contact with the front surface of the coupling portion 35 to the upper surface of the honeycomb reinforcement 10 fixed to the wall 100, and then insert the screw portion of the fixing bolt 36a into the coupling hole 36 Fasten to the wall (100).

At this time, the fixing bolt 36a is fastened to the wall 100 by penetrating through the mortar 110 filled in each cell 16 of the honeycomb reinforcement 10.

Therefore, the panel 30 is fixed to the wall 100 by the fixing bolt 36a so that the coupling part 35 is fixed in close contact with the side of the frame 15 of the honeycomb reinforcement 10.

Meanwhile, FIG. 3 shows a state in which a plurality of panels 30 are fixed to the outside of the honeycomb reinforcement 10, and as shown, a plurality of panels 30 are provided so that the honeycomb reinforcement 10 is not exposed to the outside. It is fixedly disposed on the wall 100 in a grid pattern shape, and will be installed as many as necessary according to the size of the existing wall 100 and the size of the panel 30 itself.

Therefore, between the panel 30 and the panel 30, the front end portions of the coupling portion 35 are brought into close contact with each other, whereby grooves having a predetermined depth connected in a grid pattern form.

In this case, the size of the panel 30 may be configured such that the fixing bolt 36a is positioned at the center of the cell 16 of the honeycomb reinforcement 10.

On the other hand, the panel 30 may be a metal material such as AL (aluminum), SUS or steel (steel), and may have heat resistance, pollution resistance, discoloration resistance, etc. by coating a non-flammable paint or nano ceramic on the outer surface. It is desirable to have.

In addition, the filler 120 to be described below is injected into the groove formed in the connection portion of the panel 30 is filled.

6 is a partial plan view of another embodiment of the honeycomb reinforcement material provided in the seismic reinforcement panel composite of the present invention, except for the configuration of the reinforcing bar 10 ', which is the same as the above embodiment, only the changed configuration will be described.

As shown in FIG. 6, the honeycomb reinforcement 10 ′ may be coupled with a plurality of reinforcement bars 12 installed through the frame 15 ′.

The reinforcing bar 12 sequentially sequentially folds 11 'of the edges of the cell 16' so as to intersect at the top and bottom positions at the center of the hexagonal structure cell 16 'of the honeycomb reinforcement 10'. It is installed through vertically.

In this case, a through hole through which the reinforcing bar 12 penetrates is formed in the bending piece 11 ', and the intersection between the reinforcing bar 12 and the frame 15' and the reinforcing bar 12 cross each other are fixed by welding. You can do it.

Therefore, as the honeycomb reinforcement 10 'is more firmly supported by the frame 15' by the reinforcement bar 12, the seismic strength can be further improved.

Hereinafter, the seismic reinforcement construction method of the present invention will be described in detail with reference to FIGS. 4 and 5.

Figure 4 shows a flow chart of the seismic reinforcement construction method of the present invention, Figure 5 shows a partial cross-sectional view of the seismic reinforcement panel composite of the present invention constructed on the wall of the existing building.

As shown in Figure 4, the seismic reinforcement construction method of the present invention is a reinforcing material fixing step (S10), power supply installation step (S10a), mortar filling step (S20), panel fixing step (S30), and the filling material construction step ( S40).

Reinforcement fixing step (S10) is a step of fixing the honeycomb reinforcement (10, 10 ') described above to the wall 100 of the existing building or facility, a plurality of honeycomb reinforcement (10, 10') coupled to It is made by fastening the fixing bolt 20a to the wall 100 using the through hole 26 formed in the fixing member 20.

At this time, the fixing member 20 is coupled to the appropriate place on the frame 15, 15 'of the honeycomb reinforcement (10, 10') before fixing the honeycomb reinforcement (10, 10 ') to the wall 100. After making it, it is fixed to the wall (100).

The fixing bolt 20a may be a conventional anchor bolt in the case of the concrete wall 100.

Here, the honeycomb reinforcement (10, 10 ') is typically prepared in advance in a predetermined basic unit size can be used to transport to the work site, the reinforcement fixing step (S10) in accordance with the size of the area of the wall (100). A plurality of honeycomb reinforcements 10, 10 'having such a basic unit size will be required.

At this time, the plurality of honeycomb reinforcement (10, 10 ') is preferably connected to each other by the end of the galvanized steel band clip (not shown), etc. to obtain a stress dispersion effect with the same strength in each connection portion. Do.

On the other hand, the specification of the above work is preferably to be realized through a simulation program, for example, by using a predetermined structure analysis and analysis program corresponding to the construction purpose of the cell of the honeycomb reinforcement (10, 10 ') By inputting various parameters such as (16,16 ') size, width size, raw material thickness, etc., data on various kinds of stresses can be obtained, and it is possible to review economically while maintaining safety in seismic design. Data can be expected to be secured and managed to reduce the weight of the reinforcement structure, and at the same time, the construction can be performed quickly, economically, and efficiently.

On the other hand, the power supply installation step (S10a) is a step of connecting the power supply 50 to the electrically insulating coated honeycomb reinforcement (10, 10 '), the power supply 50 in the position of the final finish (such as outside the panel) After the fixed installation), the power supply 50 is connected to the frame (15, 15 ') of the honeycomb reinforcement (10, 10') so as to enable electricity.

At this time, the power supply 50 is preferably connected to the controller 55 that is installed separately from the outside to be controlled.

Here, the surfaces of the honeycomb reinforcements 10 and 10 'are coated with an electrically insulating varnish paint.

On the other hand, the mortar filling step (S20) is a step of filling the mortar (110) in each cell (16,16 ') of the honeycomb reinforcement (10,10,) fixed to the wall 100, at this time mortar 110 is filled to the appropriate height of each cell (16, 16 ') of the honeycomb reinforcement (10, 10') in consideration of the weight and reinforcement efficiency of the reinforcing structure.

In general, the existing wall 100 does not form an accurate plane, and is often formed as a curved surface, when the honeycomb reinforcement (10, 10 ') is installed on the curved surface as described above honeycomb reinforcement Sides of the (10, 10 ') and the surface of the wall 100 may be partially spaced apart, wherein the mortar 110 is filled to be filled to such a spaced portion.

At this time, the mortar 110 is preferably a high strength non-contraction repair mortar 110, and as a corrosion inhibitor, zinc powder to suppress the corrosion of the hot-dip galvanized steel sheet by a sacrificial anode reaction may be added.

In addition, the mortar 110 may be added as an electrical conductivity enhancer, graphite powder, etc. to facilitate the corrosion current flow in a dry environment by applying electronic conductivity to inhibit the corrosion by activating the zinc plating layer, or dry shrinkage By cracking the cracks in the honeycomb reinforcing material (10, 10 ') cells (16, 16') of the cracks to prevent crack diffusion of the mortar (110) may be added to the fiber (fiber) to prevent crack diffusion There will be.

Meanwhile, the panel fixing step (S30) is a step of fixing the plurality of panels 30 on the outer surface of the honeycomb reinforcement (10, 10 ') to the wall 100 so as to be arranged in a grid pattern, the outer peripheral surface of the panel 30 After the front surface of the coupling portion 35 is bent in double contact with the side of the honeycomb reinforcement (10, 10 '), the screw portion of the fixing bolt (36a) in the coupling hole 36 of the coupling portion 35 The fixing bolt 36a is inserted into the wall 100 by penetrating through the mortar 110 filled in the cells 16 and 16 'of the honeycomb reinforcement 10 and 10'.

At this time, the panel 30 is fixed to the wall 100 in sequence, arranged to be fixed so that the front end portions of the coupling portion 35 of the panel 30 adjacent to each other in close contact with each other.

The panel 30 may be manufactured in an appropriate size in consideration of the characteristics or appearance of the existing wall 100.

On the other hand, filling step (S40) is a step of finishing the exterior construction by filling the filler 120 in the groove between the panel 30 and the panel 30 formed by the coupling portion 35 of the panel 30, It consists of a backup material injection step (S40a) and a silicon injection step (S40b).

Backup material injection step (S40a) is a step of filling the backing material 121 to a suitable height primarily on the bottom of the groove formed between the panel 30, the backup material 121 is styrofoam or rubber foam And the like may be used.

On the other hand, the silicon injection step (S40b) is a step of filling the silicon 125 is inserted into the upper portion of the backup material 121 in the state in which the backup material 121 is filled in the groove.

At this time, the silicon 125 is sufficiently inserted into the groove so as to sufficiently exhibit the waterproof function.

Therefore, as shown in the partial cross-sectional view of Figure 5, when the seismic reinforcement construction of the present invention is completed, the honeycomb reinforcement (10, 10 ') and the panel 30 are sequentially laminated on the existing wall (100), At this time, the hexagonal cells 16 and 16 'of the honeycomb reinforcement 10 and 10' are filled with the repair mortar 110 to a middle height, and the grooves between the panels 30 are backed with the backing material 121 and the silicon ( 125) are sequentially stacked and filled.

At this time, the fixing bolt (20a) for fixing the honeycomb reinforcement (10, 10 ') is fastened to the wall 100, the fixing bolt (36a) for fixing the panel 30 passes through the mortar (110) as shown By being coupled to the wall 100, the honeycomb reinforcement 10, 10 ′ and the panel 30 support the wall 100.

In addition, when constructing the honeycomb reinforcement (10 ') in the mortar filling step (S20) to fill the mortar in the cell (16') so that part or all of the reinforcing bar 12 is exposed to the outside, or the cell 16 It may be filled up to the upper end of ') so that the reinforcing bar 12 is built in mortar.

Meanwhile, FIG. 7 shows graphs of load (tf) -displacement (mm) curves for the test specimen to which the seismic reinforcement panel composite of the present invention is applied, the test specimen to which no reinforcement is applied, and the test specimen to which a conventional conventional reinforcement technique is applied.

The test body is formed as a rectangular block having a predetermined thickness and length, and the S-CONTROL (control beam) test body is a general concrete block to which seismic reinforcement is not applied, and the S-HRC test object is a seismic reinforcement panel composite of the present invention. Blocks are constructed on both sides, respectively, and S-M1 and S-M2 are test specimens to which conventional reinforcement techniques are applied.

Here, the graph of the S-CONTROL specimen shows the load-displacement graph when the static load is applied in the center, and the graphs of the S-HRC, S-M1, and S-M2 specimens show the repeated load in the center. It shows the load-displacement graph when acted on.

As shown, the S-HRC specimen in which the seismic reinforcement panel composite of the present invention was constructed exhibits a maximum load of about 25 tf, which is a significant improvement compared to the S-CONTROL and S-M1 and S-M2 specimens. It can be seen that.

Hereinafter, the graph of FIG. 7 will be described in detail with reference to [Table 1] and [Table 2].

[Table 1] shows the displacement change rate and load increase rate of each specimen compared to the S-CONTROL specimen, and [Table 2] shows the ductility index of each specimen.

[Analysis Result According to Displacement Change]
Subject name
Initial shear
Crack displacement
(mm) deflection
level
(%) Displacement
Rate of change
(%)
Extreme displacement
(mm) deflection
level
(%) Displacement
Rate of change
(%)
S-HRC
2.6
33.33
44
5.1
50
-0.14
S-M1
1.6
16.67
-11
4.5
50
-0.23
S-M2
1.97
16.67
9
3.8
33.33
-0.36

[Analysis Result According to Load Change]

Subject name
Initial shear
Crack load
(tonf) deflection
level
(%) weight
Increase
(%)
Ultimate load
(tonf) deflection
level
(%) weight
Increase
(%)
S-HRC
17
33.33
47
24.8
50
36
S-M1
11.2
16.67
-3
21.6
50
18
S-M2
11.9
16.67
3
17
33.33
-7

TYPE

Yield load
Ultimate load

Ductility index


Destruction mode

Ton
Displacement (mm)
Ton
Displacement (mm)
S-CONTROL
11.7
1.8
18.3
5.9
-
Shear failure
S- HRC
15.07
2.16
24.8
5.1
2.36
Shear failure
S-M1
14.67
2.05
21.6
4.5
2.19
Shear failure
S-M2
13.60
1.97
17.0
3.8
1.92
Shear failure

As shown in Table 1, the S-HRC specimen in which the seismic reinforcement panel composite of the present invention was constructed had an initial shear crack displacement of 2.6 mm, and the displacements until the initial shear crack occurred were S-M1 and S-. It is relatively larger than M2, indicating that the displacement change rate, that is, the displacement control rate, is 44% higher than that of the S-CONTROL specimen.

In addition, the S-HRC test specimen showed an extreme displacement of 5.1 mm, which is relatively higher than that of other test specimens, and the displacement change rate was -0.14%, which is relatively larger than that of other test specimens.

On the other hand, the load increase rate of the S-HRC test specimen was 17 ton until the initial shear crack, which is relatively higher than other test specimens, indicating that the load increase rate was improved by 47%, and the ultimate load was 24.8 ton, and the load increase rate was also 36. It can be seen that it is highest in%.

Therefore, it can be seen that the wall to which the seismic reinforcement panel composite of the present invention is applied not only improves the crack control performance due to resistance to vibration and stress dispersion effect, but also significantly improves the load bearing reinforcement performance by improving the crack load and the ultimate load.

On the other hand, the ductility index is one of the important values used in the seismic design, which represents the magnitude of plastic deformation capacity, and the displacement at maximum load divided by the displacement at yield load.

As shown in Table 2, the S-HRC specimen to which the present invention is applied yields a yield load and an ultimate load of 15.07tonf and 24.8tonf, respectively, indicating that the reinforcement ability is remarkably improved compared to other specimens. The ductility index is the highest at 2.36.

In other words, the S-HRC test specimen exhibits a relatively high value of ductility, thereby improving stress capacity for vibration and external load, and thus preventing cracks and fractures of walls.

Therefore, in the present invention, the structure of the seismic reinforcing panel composite is simple and its own weight is not only easy to install the site, but also minimizes the stress added to the wall 100 or the structure of the existing building while bending or cracking the wall 100. Seismic strength can be greatly improved by increasing structural performance such as resistance to resistance or impact resistance and ductility, and it is possible to simultaneously perform remodeling and heating effect as well as earthquake-proof reinforcement without requiring external construction using a separate finishing material. Will be.

As described above, the above embodiments are merely described as examples for convenience of description and are not intended to limit the scope of the claims.

1 is a partially exploded perspective view of the seismic reinforcement panel composite of the present invention,

2 is a perspective view of a fixing member provided in the seismic reinforcement panel composite of the present invention;

3 is a plan view of the seismic reinforcement panel composite of the present invention,

4 is a flow chart of the seismic reinforcement construction method of the present invention,

5 is a partial cross-sectional view of the seismic reinforcement panel composite of the present invention constructed on an existing wall;

6 is a partial plan view of another embodiment of a honeycomb reinforcement of the present invention,

7 is a load-displacement graph of the test specimen to which the seismic reinforcement panel composite of the present invention is applied and the test specimen to which the prior art is applied.

Explanation of symbols on the main parts of the drawings

10,10 ': honeycomb reinforcement 11,11': bending piece

12: reinforcement bar 13: straight piece

15,15 ': frame 16,16': cell

17: engaging portion 20: fixing member

20a, 36a: Fixing bolt 21,22: Crimping piece

21a, 22a: guide portion 23: insertion portion

25: fixed piece 26: through hole

30 panel 35 coupling part

36: coupling hole 100: wall

110: mortar 120: filling material

121: backup material 125: silicon

S10: Reinforcement fixing step S10a: Power supply installation step

S20: mortar filling step

S30: Panel fixing step S40: Filling material construction step

S40a: backup material injection step S40b: silicon injection step

Claims (6)

Honeycomb reinforcement is composed of a plurality of frames so that a plurality of hexagonal cells forming a predetermined space is formed isolated, the surface is formed with an electrical insulation coating; A power supply connected to the honeycomb reinforcement for winter heating; A plurality of fixing members, one side of which is fixed to the wall and the other side of which is coupled to the frame of the honeycomb reinforcement so as to fix the honeycomb reinforcement to the wall; Repair mortars respectively filled in the cells of the honeycomb reinforcement; And A plurality of panels fixed to the mortar so that the lower side is in close contact with the honeycomb reinforcement, and the outer circumferential surfaces are in close contact with each other and are installed in a grid pattern; Seismic reinforcement panel composite is configured to include. The method of claim 1, The honeycomb reinforcing material is an earthquake-resistant reinforcing panel composite, characterized in that the steel or hot-dip galvanized steel plate is produced. The method of claim 1, The honeycomb reinforcement member is a seismic reinforcement panel composite, characterized in that the plurality of reinforcement bar is further provided through the frame so as to intersect each other in the cell of each hexagonal structure. The method according to any one of claims 1 to 3, The repair mortar is a corrosion-resistant reinforcement panel composite, characterized in that the zinc powder and graphite powder is added as a corrosion inhibitor, and the anti-rust seismic mortar to which the fiber material for preventing crack diffusion is added. The method according to any one of claims 1 to 3, The panel is a seismic reinforcement panel composite, characterized in that the outer surface is formed with a nano-ceramic coating having a performance such as non-flammability, pollution resistance, discoloration resistance. Reinforcing material fixing step of fixing the honeycomb reinforcement to the wall with a fixing bolt; A power supply installation step of installing a power supply capable of supplying power to the honeycomb reinforcement; A mortar filling step of filling mortar with a predetermined height in the cells of the honeycomb reinforcement; Install the panel on the honeycomb reinforcement, the bent portion formed on the outer circumferential surface of the panel is fixed to the wall with a fixing bolt, and the plurality of panels in a grid pattern so that the front end portion of the coupling portion in close contact with each other the honeycomb reinforcement Panel fixing step of covering; And A filler construction step consisting of a backup material injection step of constructing a backup material in a groove formed between the adjacent panels and a silicon injection step of injecting silicon on the backup material; Seismic reinforcement construction method configured to include.

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