CN110541538B - Stress dispersion device for preventing cracks - Google Patents
Stress dispersion device for preventing cracks Download PDFInfo
- Publication number
- CN110541538B CN110541538B CN201910451348.5A CN201910451348A CN110541538B CN 110541538 B CN110541538 B CN 110541538B CN 201910451348 A CN201910451348 A CN 201910451348A CN 110541538 B CN110541538 B CN 110541538B
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- Prior art keywords
- stress dispersion
- stress
- dispersion plate
- concrete
- cracks
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000006185 dispersion Substances 0.000 title claims abstract description 142
- 239000004567 concrete Substances 0.000 claims abstract description 42
- 239000011083 cement mortar Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract 4
- 238000003780 insertion Methods 0.000 abstract 4
- 230000003014 reinforcing effect Effects 0.000 description 31
- 240000004282 Grewia occidentalis Species 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/0007—Implements for finishing work on buildings for mounting doors, windows or frames; their fitting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Panels For Use In Building Construction (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention provides a stress dispersion device for preventing cracks, which prevents cracks generated from edges along with installation of a window in a concrete building, and blocks the cracks generated from the edges by embedding the stress dispersion device in concrete poured from the edges of an opening part provided on a wall surface for forming the window or an access door when a new building is constructed. The above-mentioned stress dispersion device includes: a support protrusion piece contacting with an edge of the mold; a curved piece having a semicircular new installation extending to both sides with the support protruding piece as a starting point and having a through hole for the poured concrete to pass through; a ground plate which is integrally bent at both end surfaces of the bent plate in an elongated manner and contacts with a side surface of the mold; the bending piece has insertion protrusions and insertion groove portions at the same positions on the upper and lower surfaces thereof, the insertion protrusions and the insertion groove portions being capable of interference-fitting with each other.
Description
Technical Field
The present invention relates to a stress dispersion device for preventing cracks from being generated from edges of an opening portion opened for installing a window, an access door, or the like when a concrete building is newly built.
Background
Generally, as shown in fig. 1, an opening 1a having a size suitable for use, such as an entrance door or a window 2, is provided in a wall surface 1 of a building such as an apartment house, a villa, or a building, and a fixing frame is attached to an inner peripheral surface of the opening and then the entrance door or the window is attached to the fixing frame.
In order to prevent the crack, as shown in fig. 2, a reinforcing bar 12 is embedded in an opening formed in the horizontal and vertical directions, and two crack preventing bars 13 supported in the direction of the crack are additionally provided outside the reinforcing bar 12 to suppress the crack.
The crack preventing bars 13 can suppress a part of cracks generated at the edges of the rectangular opening, but cannot suppress cracks completely, and thus, cracks having a large size and a small size are mostly generated around the opening of the reinforced concrete building, although there is a difference in degree.
Further, in order to prevent stress concentration which causes the crack, the crack preventing bars 13 are additionally buried, and the crack preventing bars 13 are additionally buried in an inclined manner outside the wall reinforcing bars 14 which are assembled in a grid shape in the horizontal and vertical directions and doubly buried in the left and right sides of the wall and the opening reinforcing bars 12 which are separately buried in the periphery of the opening, but the burying work of the crack preventing bars 13 has problems that the buried wall reinforcing bars 14 and the opening reinforcing bars 12 interfere with each other, the working condition is poor, the buried space is narrow, the installation is difficult, and the coating thickness of the bars is difficult to maintain.
In addition, the assembled dense structure of the reinforcing bars hinders the concrete flow and filling, and a concrete material separation phenomenon occurs, thereby reducing the concrete strength and causing cracks.
In particular, if such diagonal cracks occur, indoor water leakage occurs due to internal penetration of rainwater, internal reinforcing bars of rainwater penetrating through the cracks accelerate the generation of cracks of corresponding parts due to the expansion of corroded reinforcing bars, which is 2 to 3 times the diameter of the reinforcing bars, and the generated cracks are difficult to repair, and the repeated contraction or expansion of the structure aggravates the generation of cracks, so that continuous repair is required, and the shape of the cracks is obviously exposed on the outer surface of the building, thereby affecting the beauty of the building.
To solve the problems of the prior art, Korean patent No. 10-1022708 was developed.
The stress dispersion plate of the prior art includes a stress dispersion plate having linear portions formed on both sides in a cross direction and integrally formed in a longitudinal direction of a curved surface portion connecting the linear portions;
since the stress dispersion plate is formed with the concrete inlet holes penetrating therethrough and the support legs protruding from one side thereof along the four-corner opening of the building, the stress dispersion plate is fixed to the opening reinforcing bars with respect to the edges of the four-corner opening of the building, and then the shear stress acting on the edges of the four-corner opening is guided and dispersed by the stress dispersion plate, thereby preventing the diagonal cracks from being generated in the edges of the four-corner opening.
However, the above-mentioned conventional stress dispersion plate cannot effectively solve the problem that the shear stress generated from the edge portion directly collides with the stress dispersion plate due to the vibration and impact generated from the building, and the shear stress is transmitted to the stress dispersion plate due to the collision impact and then cracks are generated.
Further, in the conventional stress dispersion plate, since concrete is cast in a state where the stress dispersion plate is positioned at the edge portion, the stress dispersion plate is washed away by the concrete cast during the concrete casting, and therefore, it is necessary to attach the stress dispersion plate to the reinforcing bars by workers and tie the stress dispersion plate with wires before the concrete casting, thereby lowering the work efficiency.
Disclosure of Invention
Solves the technical problem
The object of the present invention is to effectively disperse and block cracks generated from the edge portion of an opening portion provided for installing a window, an entrance door, or the like on a wall surface formed by casting concrete when a new building is built.
Technical scheme
To achieve the above object, there is provided a stress dispersion device which is buried in concrete poured from the edge of an opening portion provided in a wall surface to form a window or an entrance door when constructing a newly built building, and blocks cracks generated from the edge,
the stress dispersion device comprises a stress dispersion plate with a through hole for the through of the poured concrete and cement mortar, and support plates integrally extending from the two side end parts of the stress dispersion plate;
the stress dispersion plate is formed in a semicircular shape so as to prevent the crack generated from the edge from being diffused and disperse and eliminate the stress generated by the crack, and a stress dispersion body for dispersing the stress is provided on the inner surface of the stress dispersion plate having the semicircular shape except the through hole.
The stress dispersion member has a cylindrical shape in a state where it has a through hole communicating with the stress dispersion plate, so that the stress can be dispersed along a curved surface when it collides with the generated stress.
Further, the stress dispersion body having a cylindrical shape has an open groove at its tip end portion, which is recessed inward from the tip end surface as a starting point, so that concrete and cement mortar poured into the through hole can be smoothly filled through the open groove.
The stress dispersion plate further includes a shape maintaining plate for preventing a change in the shape of the stress dispersion plate, the shape maintaining plate being formed on the same curved surface as the stress dispersion plate at a position intermediate between the upper and lower ends of the inner surface of the stress dispersion plate.
In addition, the stress dispersion plate also comprises a fixing protrusion and a fixing groove which are used for connecting and using the two stress dispersion plates at the corresponding positions on the two sides of the upper surface of the stress dispersion plate.
The stress dispersion bodies are integrally connected to the inner and outer surfaces of the stress dispersion plate.
Further, fixing portions are integrally formed on both sides of the outer side surface of the stress dispersion plate to fix the stress dispersion plate to the reinforcing bars by simple interference fit.
The fixing portion is made of synthetic resin material and is provided with an elastic fixing piece with a front opening for inserting and fixing the reinforcing steel bar.
Effects of the invention
The invention takes each edge position of an opening part formed when constructing a wall surface for installing a window or an access door as a starting point, and when a stress dispersion device is embedded in the wall surface, a stress dispersion plate as the stress dispersion device is formed into a semicircular curve surface, so as to block a crack generated by taking the edge as the starting point and simultaneously disperse and eliminate the crack when the stress generated along with the crack generation collides, thereby preventing the stress from being dispersed to the building.
In addition, the stress dispersion plate is provided with a plurality of stress dispersion bodies extending integrally on the inner surface thereof, so that the generated stress is collided until the stress dispersion is too dispersed and extinguished before reaching the stress dispersion plate, thereby having the effect of effectively dispersing and extinguishing the stress.
Drawings
FIG. 1 is an illustration of a window of a conventional building;
FIG. 2 is a plan sectional view of a prior art construction state;
FIG. 3 is a perspective view of a stress dispersion plate according to the present invention;
fig. 4 is a plan sectional view of a structure as a stress dispersion plate of the present invention;
fig. 5 is a sectional view showing an installation state of a stress dispersion plate as the present invention;
FIG. 6 is an enlarged view of part A of FIG. 4, wherein
FIG. 6a is a state before concrete is poured;
FIG. 6b is a view after concrete has been poured;
FIG. 6c is a view showing the mold removed after the concrete has been poured;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6 a;
fig. 7a is a view showing a state before concrete is poured in a state where the fixing portion is coupled to the reinforcing bars;
fig. 7b is a view showing a state after concrete is poured in a state where the fixing portion is coupled to the reinforcing bars;
fig. 8 is a cross-sectional view of another embodiment of the present invention.
(description of reference numerals)
100: stress dispersion device 200: stress dispersion board
210: through-hole 300: supporting plate
400: stress dispersion 410: through hole
420: open cell 500: fixing part
510: elastic fixing piece 520: space part
Detailed Description
The structure of the embodiment of the present invention will be described below with reference to the drawings.
Fig. 3 is a perspective view showing the structure of a stress dispersion plate according to the present invention, fig. 4 is a plan sectional view showing the structure of the stress dispersion plate according to the present invention, and fig. 5 is a sectional view showing the installation state of the stress dispersion plate according to the present invention, and is a structural view showing the installation state of the stress dispersion device according to the present invention, and the stress dispersion device 100 according to the present invention is embedded in a wall surface with each edge 12 of an opening 11 formed in the wall surface 10 as a starting point, and includes a stress dispersion plate 200, a support plate 300 bent outward in a state where both side ends of the stress dispersion plate are integrally extended, a stress dispersion body 400 integrally extended on the inner side surface of the stress dispersion plate and used for dispersing crack stress, and a fixing portion 500 integrally provided on both sides of the outer side surface of the stress dispersion plate and capable of fixing the stress dispersion plate to a reinforcing bar by simple interference fit.
The stress dispersion plate 100 is formed by extrusion molding using a synthetic resin as a material, but is not limited thereto, and may be formed using any material that can perform the function of a stress dispersion device.
The stress dispersion plate 200 is formed in a semicircular shape so as to surround the edge 12 in which a crack due to stress concentration is likely to occur, so as to surround the same range along both sides with the edge 12 as a starting point, and the crack generated from the edge 12 due to stress concentration is blocked by the stress dispersion plate 200 surrounding the periphery with the edge 12 as a starting point, thereby preventing further crack generation, and the crack generated from the stress concentration with the edge 12 as a starting point is blocked 200 times as much as the stress dispersion plate, thereby preventing the crack from being generated in the memory portion, and the stress generated at the time of crack is dispersed and extinguished along the curved surface by the stress dispersion plate 200 formed with the semicircular curved surface, thereby fundamentally blocking the crack generated due to stress.
In this case, a plurality of through holes 210 through which concrete and cement mortar poured during wall surface construction pass are formed in the stress dispersion plate 200, and when concrete and cement mortar are poured to construct the wall surface 10, the poured concrete and cement mortar are poured in a state of passing through the through holes 210.
Further, the stress dispersion plate 200 is provided with a shape maintaining piece 220 on the same curved surface as the stress dispersion plate at the middle position of the upper and lower end portions of the inner side surface thereof, so that the stress dispersion plate 200 having a semicircular shape and made of a synthetic resin is prevented from being changed by the pouring impact of the poured concrete and cement mortar.
The support plate 300 is formed by bending outward in an integrally extended state at both end portions of the stress dispersion plate 200 having a semicircular shape, and the support plate 300 is in contact with the outer surface of the mold 1 for forming the opening 11 when concrete or cement mortar is poured.
Further, since the fixing protrusions 230 and the fixing grooves 240 are respectively provided at corresponding positions on both sides of the upper surface of the stress dispersion plate 200, when two stress dispersion plates are required to be used in connection, the fixing protrusions 230 provided on one stress dispersion plate are inserted into the fixing grooves 240 fixed to the other stress dispersion plate.
The stress dispersion member 400 is formed to extend integrally with the inner surface of the stress dispersion plate 200 except for the through-hole, and has a circular shape so as to disperse and eliminate the stress generated by the crack generated from the edge 12 of the wall surface 10 when the stress collides with the wall surface.
In this case, the stress dispersion bodies 400 are integrally formed on the inner surface of the stress dispersion plate 200 having a semicircular shape, and the stress dispersion bodies 400 formed on the stress dispersion plate 200 face the edges 12.
The stress dispersion body 400 has a through hole 410 communicating with the stress dispersion plate 200 and buried in a state of being penetrated by concrete and cement mortar, and an open groove 420 cut inward from a front end face as a starting point is provided at a front end portion of the stress dispersion body 400, so that the poured concrete and cement mortar smoothly flow into the through hole of the stress dispersion body 400 through the open groove 420 and are filled.
The cut groove 420 preferably has a conical V shape, but is not limited thereto, and may have any shape that allows concrete or cement mortar to be smoothly filled into the through-hole 410.
The fixing portions 500 are integrally provided on both sides of the outer surface of the stress dispersion plate 200, and each of the fixing portions 500 is formed of an elastic fixing piece made of a synthetic resin material and having a space portion 520 with a front portion opened for inserting and fixing a reinforcing bar into the stress dispersion plate 200 in a fixed state, and when the stress dispersion plate 200 is positioned on the edge side before concrete is poured between the molds, the stress dispersion plate 200 is pushed down in a state where the opening portion of the fixing portion 500 provided on both sides of the outer surface of the stress dispersion plate 200 is positioned on the reinforcing bar 20, the elastic fixing piece 510 is opened outward by its own elastic force, the reinforcing bar 20 is inserted into the space portion 520, and then the forcibly opened elastic fixing piece 510 is restored to its original state by its own elastic force, so that the state where the reinforcing bar 20 is fixed by the elastic fixing piece 510, and the stress dispersion plate 200 is in a fixed state.
As shown in fig. 6a, in the stress dispersion device 100 of the present invention having the above-described structure, in order to form an opening 11 for installing an entrance door, a window, or the like when constructing a wall surface 10, a mold 1 is installed at the position where the opening is formed, a reinforcing bar 20 is connected vertically and horizontally inside the position where the wall surface 10 is formed, and the stress dispersion device 100 of the present invention is installed at the edge position of the mold 1 installed to form the opening 11.
Specifically, before the concrete and cement mortar are poured, the stress dispersion device 100 is installed outside the mold 1 to form the opening 11, and at this time, the reinforcing bars 20 are integrally provided with fixing portions 500 on both sides of the outer surface of the stress dispersion plate 200 by inserting and fixing the reinforcing bars 20 in a state where the outer surface of the stress dispersion plate 200 is in contact with the reinforcing bars 20 arranged to intersect vertically and horizontally at the outer periphery of the mold 1.
Specifically, when the reinforcing bar 20 is pushed down the stress distribution plate 200 in a state where the reinforcing bar 20 is placed in the open portion 20 at the tip of the elastic fixing piece 510 serving as the fixing portion 500, the reinforcing bar 20 is inserted into the space portion 520 in a state where the reinforcing bar 20 is forcibly pushed outward by the elastic fixing piece 510, and after the reinforcing bar 20 is inserted into the space portion, the reinforcing bar 20 is fixed in the space portion 520 in a state where the reinforcing bar 20 is fixed by the elastic fixing piece 510 as the elastic fixing piece 510 pushed outward returns to its original state.
At this time, the support plate 300, which is integrally extended and bent outward on the outer peripheral surface of the stress dispersion plate 200, is in a state of being in contact with the outer surface of the mold 1.
In this state, when concrete and cement mortar are poured into the space between the molds 1, the space formed by the molds is filled with the poured concrete and cement mortar, and at this time, the poured concrete and cement mortar are filled into the through holes 210 provided in the stress dispersion plate 200 and the through holes 410 formed in the stress dispersion body 400 to complete the pouring.
At this time, concrete and cement mortar can be smoothly poured into the through-hole 210 provided in the stress dispersion plate 200, and the through-hole 410 in the stress dispersion member 400 provided at right angles to the stress dispersion plate 200 is filled with the concrete and cement mortar by flowing the concrete and cement mortar into the through-hole 410 through the open groove 420 provided at the tip end portion.
After a predetermined time has elapsed after the completion of the placement of the concrete and the cement mortar in the above-described state, the mold 1 is removed and the door frame is attached to the inner peripheral surface of the opening 11, and then the window or the access door is attached (see fig. 6 c).
The thus constructed building generates an impact and a vibration during use, and when stress is concentrated by the generation of the vibration and the impact, cracks are generated with the edge 12 as a starting point, the cracks generated by the concentration of the stress are spread to the entire wall surface 10 with the edge 12 as a starting point, and the cracks generated with the edge 12 as a starting point are blocked by the stress distribution device 100 embedded in the wall surface 10 with the edge 12 as a starting point, so that the stress is distributed and extinguished, and the cracks are blocked to prevent the cracks from spreading to the entire wall surface 10.
Specifically, when a crack is generated from the edge 12 as a starting point due to stress concentration and the stress and the crack are diffused in any direction from the edge 12 as a starting point, the stress collides with, is dispersed and disappears by the stress dispersion plate 200 and the stress dispersion body 400 having a semicircular shape embedded in the wall surface 10 from the edge 12 as a starting point, and the crack is not further diffused.
That is, since the stress dispersion plate 200 is formed with the semicircular curved surface, the crack is blocked by the stress dispersion plate 200 to prevent further diffusion, and the stress generated when the crack is generated hits the inner surface of the stress dispersion plate 200 formed with the semicircular curved surface, and both surfaces in the bending direction are extinguished.
Further, since the stress dispersion body 400 formed to extend on the inner surface of the stress dispersion plate 200 has a circular shape, the generated stress collides with the outer surface of the stress dispersion body 400, that is, the curved position having the circular shape, and is dispersed along the curved surface, so that the stress and cracks to be diffused to the entire wall surface can be effectively blocked and the cracks can be eliminated in the stress dispersion plate 200.
As shown in fig. 8, as another embodiment of the present invention, the stress dispersion member 400 may be used in a state of being integrally formed in an elongated manner on the inner and outer sides of the stress dispersion plate 200, and when the stress dispersion member 400 is provided on the inner and outer sides of the stress dispersion plate 200, the dispersion of stress may be further improved.
Claims (3)
1. A stress dispersion apparatus for preventing cracks, comprising: a stress dispersion plate formed in a semicircular shape to prevent cracks generated from edges from being diffused and to disperse and eliminate the stress generated by the cracks, and having a through hole through which concrete and cement to be poured at least pass;
support plates integrally extended from both side end portions of the stress dispersion plate;
a stress dispersion member formed on the inner surface of the stress dispersion plate having a semicircular shape except for the through-hole, for dispersing stress; when a new building is constructed, the concrete is buried in the concrete poured by taking the edge of the opening part of the wall surface for forming a window or an access door as a starting point, so that cracks generated from the edge are blocked;
the stress dispersion body has a cylindrical shape in a state of having a through hole communicating with the stress dispersion plate so as to be capable of dispersing the stress along a curved surface when colliding with the generated stress; an open groove that is recessed inward from a front end surface of the stress dispersion body having a cylindrical shape at a front end portion thereof so that concrete and cement mortar poured into the through-hole can be smoothly filled through the open groove; a shape maintaining plate for preventing the shape of the stress dispersion plate from changing in a same curved surface as the stress dispersion plate at the middle position of the upper end part and the lower end part of the inner side surface of the stress dispersion plate; the stress dispersion plate comprises a stress dispersion plate, fixing lugs and fixing grooves, wherein the stress dispersion plate comprises a stress dispersion plate body and a stress dispersion plate body; the stress dispersion plate is provided with fixing parts integrally formed on both sides of the outer side surface thereof so as to fix the stress dispersion plate to the reinforcing steel bars by simple interference fit.
2. A stress dispersion means for preventing cracks according to claim 1, wherein: the stress dispersion bodies are integrally communicated with the inner and outer side surfaces of the stress dispersion plate.
3. A stress dispersion means for preventing cracks according to claim 1, wherein: the fixing part is composed of an elastic fixing piece which is made of synthetic resin material and is provided with a space part with an open front part for inserting and fixing the reinforcing steel bars.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0061057 | 2018-05-29 | ||
| KR1020180061057A KR101893218B1 (en) | 2018-05-29 | 2018-05-29 | translate online |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110541538A CN110541538A (en) | 2019-12-06 |
| CN110541538B true CN110541538B (en) | 2021-01-15 |
Family
ID=63453451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910451348.5A Expired - Fee Related CN110541538B (en) | 2018-05-29 | 2019-05-28 | Stress dispersion device for preventing cracks |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101893218B1 (en) |
| CN (1) | CN110541538B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102047439B1 (en) * | 2019-05-07 | 2019-11-21 | 주식회사 한창종합건설 | Stiffener for preventing corner cracks in openings of reinforced concrete structures |
| CN113125220A (en) * | 2021-04-08 | 2021-07-16 | 太原锅炉集团有限公司 | Preparation method of coal slime stress measurement sample for fluidized bed |
| KR102559033B1 (en) * | 2021-08-31 | 2023-07-26 | 디엘이앤씨 주식회사 | Curved panels for stress distribution |
| TWI796197B (en) * | 2022-04-08 | 2023-03-11 | 國立彰化師範大學 | Reinforcing device for construction |
| KR102598452B1 (en) * | 2023-01-27 | 2023-11-06 | 이진선 | Bracket for Preventing Crack |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB705355A (en) * | 1951-06-23 | 1954-03-10 | Roy William Rumble | Improvements in building door and window frames into walls and in door and window frames |
| FR1587229A (en) * | 1968-10-25 | 1970-03-13 | ||
| JP2000213092A (en) * | 1999-01-20 | 2000-08-02 | Nishimatsu Constr Co Ltd | Concrete building with opening and construction thereof |
| KR100585986B1 (en) * | 2005-08-09 | 2006-06-02 | (주)가포개발 | Device for protecting the crack on the edge |
| KR200423745Y1 (en) * | 2006-05-18 | 2006-08-11 | 주식회사 금광통신 | Terminal box |
| JP4878575B2 (en) * | 2007-04-27 | 2012-02-15 | 岡部株式会社 | Crack prevention tool for reinforced concrete structure and crack prevention structure using the same |
| KR100940759B1 (en) * | 2007-12-10 | 2010-02-11 | 이희곤 | Perforated panel for preventing crack and construction method thereof |
| KR101022708B1 (en) * | 2011-01-05 | 2011-03-22 | 주식회사종합건축사사무소가람건축 | Stress-distributing curved plate for prevention of cracking in periphery of an opening |
| JP6215575B2 (en) * | 2013-05-28 | 2017-10-18 | 東急建設株式会社 | Reinforcing member for opening |
| KR101613702B1 (en) * | 2014-12-09 | 2016-04-19 | 주식회사 종합건축사사무소가람건축 | Stress-distributing curved plate for prevention of cracking in periphery of an opening |
| CN106401205A (en) * | 2016-09-06 | 2017-02-15 | 中交第航务工程局有限公司 | Construction method for reinforcement of externally bonded profile steel of reinforced concrete structure |
-
2018
- 2018-05-29 KR KR1020180061057A patent/KR101893218B1/en active IP Right Grant
-
2019
- 2019-05-28 CN CN201910451348.5A patent/CN110541538B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR101893218B1 (en) | 2018-08-30 |
| CN110541538A (en) | 2019-12-06 |
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