WO2020122597A1 - Élément de cadre pour moulage, et cadre de moulage l'utilisant - Google Patents

Élément de cadre pour moulage, et cadre de moulage l'utilisant Download PDF

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Publication number
WO2020122597A1
WO2020122597A1 PCT/KR2019/017497 KR2019017497W WO2020122597A1 WO 2020122597 A1 WO2020122597 A1 WO 2020122597A1 KR 2019017497 W KR2019017497 W KR 2019017497W WO 2020122597 A1 WO2020122597 A1 WO 2020122597A1
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WIPO (PCT)
Prior art keywords
core
frame member
formwork
frame
outer frame
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PCT/KR2019/017497
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English (en)
Korean (ko)
Inventor
김명호
김명준
Original Assignee
김명호
김명준
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020190037985A external-priority patent/KR102151343B1/ko
Priority claimed from KR1020190069369A external-priority patent/KR102274188B1/ko
Application filed by 김명호, 김명준 filed Critical 김명호
Publication of WO2020122597A1 publication Critical patent/WO2020122597A1/fr

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    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements

Definitions

  • the present invention relates to a frame member for a formwork and a formwork frame using the same, more specifically, it is light, has excellent structural rigidity, can be manufactured at a low cost, can minimize noise during installation and disassembly, and has excellent durability And, it is possible to improve the recycling ratio, as well as to shorten the assembly time, and to a frame member for the formwork to prevent assembly failure and the formwork frame using the same.
  • a formwork is a structure used to construct a concrete structure in a predetermined form and includes a frame and a panel attached to one surface of the frame.
  • the frame is composed of an outer frame of a rectangular structure and an inner frame coupled to the inside of the outer frame to stably support the panel.
  • the frame is manufactured using various materials such as wood, iron, and aluminum, and the wood frame is weak in durability and difficult to be used for a long period of time, and the steel frame is excellent in durability and can be used many times, but it is heavy and has poor workability.
  • an aluminum frame having light and excellent strength has been developed and used.
  • the formwork frame must satisfy the KS standard no matter what material is applied. If light and high-strength aluminum is used to pass the KS standard, the manufacturing cost rises, and the steel frame plywood increases the structural rigidity and lowers the manufacturing cost. When hot-rolled steel materials such as formwork (KS 8006:2007) are used, the weight reaches about 20 Kg (1,200 mm*600 mm**63.5 mm high), and industrial accidents are likely to occur and workability is significantly reduced. Therefore, it is required to develop a formwork frame that is structurally rigid and capable of meeting the KS standard and is lightweight and inexpensive, and also prevents an increase in fuel cost or environmental pollution.
  • the present invention was devised to solve the above-mentioned problems of the prior art, while increasing the structural rigidity at a low cost while minimizing noise generation and reducing weight, which is excellent in durability and can increase the recycling rate as well as increase the assembly time.
  • An object of the present invention is to provide a frame member for a formwork and a formwork frame using the same, which can be shortened and minimize the defect rate.
  • the present invention is a body having at least one wedge pin fastening hole which is extruded so as to form a hollow portion for core filling at an inner center and penetrated in a thickness direction; And a core filled in the hollow portion for filling the core, wherein the wedge pin fastening hole has an outer wall of the body and an inner wall of the core and the body when the core is filled in the hollow portion for filling the core. It provides a frame member for a formwork characterized in that the periphery of the wedge pin fastening hole perforated in the outer wall is recessed inward by being formed by being sequentially perforated by a press.
  • the core includes a through hole formed at a position corresponding to the wedge pin fastening hole, a wedge pin assembly reinforcement core is inserted into the through hole, and the wedge pin assembly reinforcement core is coupled with the wedge pin fastening hole. It may have a corresponding shape of the hole.
  • hollow parts for losing weight may be formed on the upper and lower inner sides of the body.
  • a partition wall may be formed between the hollow portion for core filling and the hollow portion for losing weight.
  • the core filled in the hollow portion for core filling of the portion where the wedge pin fastening hole is formed may be made of a metal material.
  • a protective layer of weather resistance, corrosion resistance, and chemical resistance may be coated on the surface of the formwork frame member.
  • the core may be a solid core made of aluminum alloy or magnesium alloy.
  • the core may be made of any one selected from wood, foamed plastic, non-foamed plastic, FRP, and sandwich composite panels.
  • the wedge pin assembly reinforcement core may be made of any one selected from steel, aluminum alloy, and magnesium alloy.
  • the present invention is made of a frame member for the above-described formwork, a pair of first outer frame members disposed opposite to each other, and a pair of second outer frame members respectively disposed at both ends of the first outer frame member And an external frame having; Corner brackets disposed at corners of the outer frame to connect the first outer frame member and the second outer frame member; And an inner frame coupled to the inside of the outer frame.
  • the corner bracket has a body portion and a pair of coupling portions extending perpendicularly from the body portion, and the coupling portion is a hollow portion for core filling of the first outer frame member and the second outer frame member Each can be inserted.
  • the inner frame includes a plurality of first inner frame members connecting the pair of first outer frame members, and cross-coupled to the first inner frame member to connect the pair of second outer frame members.
  • the first inner frame member including a plurality of second inner frame members, and installed in the center among the plurality of first inner frame members may have a shape of a square tube or C-shaped steel.
  • the first inner frame member in the form of each tube is made of steel, and the width, length, and thickness of the cross section are 50(51.5)mm*30(28.5)mm*1.8 ⁇ 2.5mm or 50(51.5)mm*50 (48.5)mm*1.2 ⁇ 2.5mm.
  • first inner frame member disposed at the end of the plurality of first inner frame members, and the second inner frame member may have an isosceles double-sided cross-sectional structure composed of a vertical portion and a horizontal portion.
  • the first inner frame member and the second inner frame member having the inequality-sided cross-section structure are made of steel, and the horizontal, vertical, and thickness of the cross section is 30(25)mm*50(51.5)mm*1.2 ⁇ 2.6. mm.
  • a fastening part bent outward or inward is formed at one end of the vertical part and the horizontal part, and the fastening part can be fastened by the rivet or a round head bolt.
  • first inner frame member and the second inner frame member may be integrally joined by welding portions that cross each other.
  • both ends of the core are exposed outside the body, and both exposed ends may be inserted into and fastened to the corner brackets.
  • the corner bracket is a corner core insert made of urethane rubber, synthetic rubber or metal, including a groove part into which the exposed end of the core is inserted, and a protrusion part inserted into the body by protruding from the upper and lower parts of the groove part, respectively.
  • a corner core insert made of urethane rubber, synthetic rubber or metal, including a groove part into which the exposed end of the core is inserted, and a protrusion part inserted into the body by protruding from the upper and lower parts of the groove part, respectively.
  • an inner corner bracket is disposed inside the corner of the outer frame, and the inner corner bracket and the outer frame can be fastened by rivets or round head bolts.
  • the corner bracket may be made of any one selected from engineering plastics, aluminum alloys, magnesium alloys, and steel.
  • an impact preventing insert may be inserted into the top or bottom of the body portion of the corner bracket, or at the top and bottom.
  • the impact-resistant insert may be made of synthetic rubber, engineering plastic, or metal.
  • a core made of wood or a metal material is filled in a hollow portion for core filling of an extruded hollow frame member made of aluminum alloy or magnesium alloy material to form a plywood formwork of steel frame (1,200 mm*600 mm* height 63.5 mm).
  • the wedge pin fasteners for connecting the formwork and the adjacent formwork are formed in a way that is punched by the press, so that the periphery of the wedge pin fasteners is recessed inward and pressed into the core when punching, thereby causing a gap between the outer frame and the core. The watertightness of is maintained to prevent moisture and moisture from penetrating the core.
  • a hollow part for losing weight is formed inside the upper and lower ends of the frame member, and a partition wall is formed between the hollow part for core filling and the hollow part for losing weight, thereby reducing material weight, improving structural rigidity, and reducing noise as well as reducing weight.
  • a partition wall is formed between the hollow part for core filling and the hollow part for losing weight, thereby reducing material weight, improving structural rigidity, and reducing noise as well as reducing weight.
  • corner bracket for connecting the outer frame member and the adjacent outer frame member is combined in a manner that is inserted inside the outer frame member, thereby minimizing the twisting of the frame and increasing the assembly accuracy compared to the case of welding. .
  • the core inserted inside the outer frame is made of a solid core made of aluminum alloy or magnesium alloy material, thereby attenuating noise generated during the installation and dismantling of the formwork and improving the recycling ratio.
  • both ends of the core inserted into the hollow portion for core filling of the frame member are exposed outside the body, and the exposed ends are inserted into corner core inserts and fastened with rivets, round head bolts, etc., thereby preventing damage to the frame due to cracks. Durability can be improved.
  • a through hole is formed in the core, and the core is inserted into the hollow portion for core filling of the body in a state where the wedge pin assembly reinforcement core is inserted in the through hole, thereby shortening the assembly time of the frame member for formwork and minimizing the defect rate. Can reduce weight.
  • FIG. 1 is a perspective view of a formwork frame according to a first embodiment of the present invention
  • FIG 2 is an exploded perspective view of the formwork frame shown in Figure 1
  • FIG. 3 is a cross-sectional view taken along line A-A, B-B, and C-C of FIG. 2,
  • Figure 4 is a structural view of the coupling of the body and the core of the outer frame shown in Figure 2,
  • FIG. 5 is an enlarged view of a portion D of FIG. 2,
  • Figure 6 is a cross-sectional structure of the part D of Figure 2,
  • FIG. 7 is a view showing a modification of the inner frame of the formwork frame shown in Figure 2,
  • FIG. 8 is an enlarged view showing a coupling structure between an outer frame and an inner frame of the formwork frame shown in FIG. 2,
  • FIG. 10 is a view showing the results of the maximum displacement and maximum stress analysis of the hot rolling frame under static load
  • FIG. 11 is a view showing the results of maximum displacement and maximum stress analysis of a hot-rolled frame under an impact load
  • 15 is a view showing a bending test model of a formwork model to which an extrusion hollow frame is applied
  • 16 and 17 are views showing the results of the analysis of the amount of deflection of a formwork model to which an extrusion hollow frame is applied,
  • 19 is a view showing the result of the test for the number of times per panel
  • 20a to 20c is a view showing the results of the deflection test of the formwork
  • 21 is a view showing an assembly cross-section when installing the formwork of the extrusion hollow frame
  • FIG. 22 is a view showing a result of the deflection CAE of the extruded hollow frame shown in FIG. 21,
  • FIG. 23 is an exploded perspective view of a formwork frame according to a second embodiment of the present invention.
  • FIG. 24 is a structural view of the coupling between the body and the core of the outer frame shown in FIG. 23;
  • 26 is an exploded perspective view of a formwork frame according to a third embodiment of the present invention.
  • FIG. 27 is a structural view of the body and core of the outer frame shown in FIG. 26;
  • FIG. 1 is a perspective view of a formwork frame according to a first embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the formwork frame shown in FIG. 1
  • FIG. 3 is a cross-sectional view taken along AA, BB, CC of FIG. 2
  • FIG. 4 is shown in FIG. 5 is an enlarged structural view of a body and a core of an external frame
  • FIG. 5 is an enlarged view of a portion D of FIG. 2
  • FIG. 6 is a cross-sectional structure of a portion D of FIG. 2
  • FIG. 7 is an inner frame of the formwork frame of FIG.
  • FIG. 8 is a view showing an enlarged structure of the outer frame and the inner frame of the formwork frame illustrated in FIG. 2.
  • the frame member for a formwork according to the first embodiment of the present invention is used as the outer frame 110 of the formwork frame 100, and the body 111 as shown in FIG. It includes a core 112.
  • the body 111 is extruded using an aluminum alloy or a magnesium alloy so that a hollow portion 111a for core filling is formed in the inner center.
  • the body 111 has at least one wedge pin fastening hole 111c.
  • Wedge pin fastening hole (111c) is a hole for insertion of the wedge pin used to connect the formwork and the adjacent formwork, the outer wall and the inner wall of the body 111 is formed through the pressing in the thickness direction.
  • the outer wall of the body 111 refers to a wall (the right wall of the body in FIG. 3) disposed outside in the combined state of the formwork frame 100, and the inner wall is a wall opposite to the outer wall (left of the body in FIG. 3) Wall), hereinafter used in the same sense.
  • the body 111 is fixed so that the inner wall of the body 111 is grounded on the die side of the press mold, and then press punch When pressurized with the outer wall of the body 111, the core 112 and the inner wall are sequentially perforated to form a wedge pin fastening hole (111c).
  • the periphery of the wedge pin fastening hole 111c maintains a flat surface, while the outer wall of the body 111 is a body 111 ) Since the periphery of the wedge pin fastening hole 111c is recessed inward and bent because it is perforated in a state supported by the core 112 having a weaker strength (see FIG. 3(c)) ), whereby the contact portion between the outer wall of the body 111 and the core 112 is not spaced apart, so that water tightness can be maintained.
  • the upper and lower ends of the body 111 are formed with a hollow portion 111b for losing weight.
  • the hollow portion 111b for losing weight forms a part of the body 111 in a hollow structure, thereby making the formwork frame 100 lighter and reducing material, thereby reducing production cost.
  • the formation position or number of the hollow parts 111b for losing weight can be appropriately adjusted within a range that does not degrade the structural rigidity of the formwork frame 100.
  • a hollow portion 111b for losing weight is additionally formed on a stepped portion 111d protruding above and below the inner wall of the body 111 for coupling of the panel 10, the corner bracket 120, the inner frame 130, and the like. It is also possible to lower the weight of the formwork frame 100.
  • the partition 111e is formed between the hollow portion 111a for core filling and the hollow portion 111b for losing weight.
  • the core 112 it is also possible to fill the core 112 by forming the hollow portion 111a for filling the core and the hollow portion 111b for losing weight as one hollow portion without forming the partition 111e, but the barrier rib 111e Without this, the supporting force of the body 111 becomes weak and the structural rigidity becomes low, so it is difficult to obtain the expected performance.
  • the core 112 is to maintain rigidity while reducing the weight of the frame member for formwork, and is inserted and filled in the hollow portion 111a for core filling of the body 111.
  • the core 112 is preferably a material of the body 111, that is, lighter than a metal, but the material of the body 111 is not limited to wood, and other materials if it has similar weight and strength to wood.
  • foamed/non-foamed plastics, FRP, sandwich structure panels, composite material sheets, and the like are applicable.
  • a metal core 112a such as steel, aluminum alloy, magnesium alloy, etc. is filled in a portion where the wedge pin fastening hole 111c is formed in the outer frame 110, and other parts are
  • the core 112b made of wood or the like described above may be filled.
  • the core 112 is not entirely filled in the hollow portion 111a for core filling, but is filled only in an area excluding both ends of the hollow portion 111a for core filling (see FIG. 3 ). This is for inserting the coupling portion 120b of the corner bracket 120, which will be described in detail later.
  • the frame member for formwork constructed as described above may be coated with a protective layer having weather resistance, corrosion resistance, and chemical resistance on the surface for surface protection.
  • a protective layer having weather resistance, corrosion resistance, and chemical resistance on the surface for surface protection.
  • the surface protection layer is coated to prevent corrosion of the surface of the formwork frame member. Not only can it be protected from strong alkaline concrete, etc., but also prevents moisture and moisture from penetrating into the contact portion between the wedge pin fastener 111c and the core 112 or the core 112 exposed from the wedge pin fastener 111c. can do.
  • the formwork frame 100 includes an outer frame 110, a corner bracket 120 and an inner frame 130.
  • the outer frame 110 includes a first outer frame member 113 and a second outer frame member 114 made of the frame member for formwork described above.
  • Two first outer frame members 113 are disposed to face each other, and two second outer frame members 114 are similarly provided and disposed at both ends of the first outer frame member 113. That is, the first outer frame member 113 and the second outer frame member 114 form a rectangular shape as a whole.
  • the corner bracket 120 is for connecting and fixing the first outer frame member 113 and the second outer frame member 114 and is installed at each corner of the outer frame 110.
  • the corner bracket 120 includes a body portion 120a and a coupling portion 120b formed to protrude perpendicularly to both ends of the body portion 120a.
  • the coupling parts 120b are respectively inserted into both ends where the core 112 is not filled in the hollow part 111a for core filling of the outer frame 110, and in this state, fastening means such as rivets 122 or round head bolts It is fixed using.
  • first outer frame member 113 and the second outer frame member 114 are combined by configuring the corner bracket 120 in an inserted manner, the conventional first outer frame member 113 and the second outer frame member 114 Compared to the method of welding the edge of the end, it is possible to minimize the distortion of the frame as well as increase the assembly precision, and it is easy to assemble and disassemble, thereby reducing maintenance costs.
  • a separate inner corner bracket 121 is disposed inside the corner of the outer frame 110, and a rivet 122 or a round head bolt is provided together with the outer frame 110 and the corner bracket 120. It is also possible to fix.
  • a bottom surface is provided at the bottom, and such a bottom surface may be used for coupling with the panel 10.
  • corner bracket 120 may be made of any one or more selected from aluminum alloys, magnesium alloys, engineering plastics, high elastic high hardness urethane rubber, synthetic rubber, metal, and the inner corner bracket 121 is a rolled steel for general structure, It may be made of any one or more selected from stainless steel, aluminum alloy, engineering plastics.
  • the inner frame 130 is made of any one or more materials selected from general structural rolled steel, stainless steel, aluminum alloy, magnesium alloy, and composite materials, and is coupled to the inside of the outer frame 110.
  • the inner frame 130 is a first inner frame member 131 connecting the first outer frame member 113 to each other, and the first inner frame member 131 cross-coupled to the second outer frame member 114 It includes a second inner frame member 132 connecting each other.
  • the first inner frame member 131 and the second inner frame member 132 are preferably composed of at least two or more to improve the structural rigidity of the formwork frame 100, the size and use of the formwork frame 100 It can be expanded appropriately considering the like.
  • the first inner frame member 131 and the second inner frame member 132 will be described as an example consisting of three.
  • the first inner frame member disposed in the center among the plurality of first inner frame members 131 preferably has a shape of a square tube shown in FIG. 2 or a C-shaped steel shown in FIG. 7. Because, when the supporting force of the middle part of the formwork is weak, the filling effect may occur in the curing process of concrete, so the center of the formwork is formed in the shape of a square tube or C-shaped steel to improve the bearing capacity to prevent filling.
  • the first inner frame member 131 of each tube type is made of steel, and the horizontal, vertical, and thickness of the cross section is 50(51.5)mm*30(28.5)mm*1.8 ⁇ 2.5mm or 50(51.5)mm It is preferable that it is *50(48.5)mm*1.2 ⁇ 2.5mm.
  • first inner frame members 131 the first inner frame member and the second inner frame member 132 disposed at both ends of the first inner frame member 131, the vertical portion 132a and the horizontal portion 132b to enable lightweight while improving structural rigidity
  • a fastening portion 132c is formed at one end of the vertical portion 132a and the horizontal portion 132b.
  • the fastening portion 132c is formed by bending one end of the vertical portion 132a outward and one end of the horizontal portion 132b inwardly, and riveting 133 in a grounded state with the inner circumferential surface of the outer frame 110. Or it is fastened with a round head bolt.
  • the first inner frame member 131 also has an isosceles-shaped cross-section structure including vertical and horizontal parts, and a fastening part is formed at one end. Combined with the frame.
  • the first inner frame member 131 and the second inner frame member 132 having an isosceles cross-section structure are made of steel, and the horizontal, vertical, and thickness of the cross section is 30(25)mm*50(51.5). It is preferable that it is mm*1.2-2.6 mm.
  • the horizontal, vertical, and thickness of the cross section are adjusted to a predetermined size.
  • the total weight of the formwork frame 100 is easy to work with, for example, 13kg (hot rolled frame formwork: 19.6kg, aluminum formwork: 15kg width x length x height: 600x1,200x63.5mm) can be reduced in weight.
  • first inner frame member 131 and the second inner frame member 132 are fixed in such a way that the parts intersecting each other are joined and integrated by welding.
  • FIG. 10 shows the maximum displacement and maximum stress analysis results of the hot-rolled frame under static load
  • Fig. 11 shows the maximum displacement and maximum stress analysis results of the hot-rolled frame under impact load.
  • FIG. 12 The cross-sectional properties and mechanical properties of the extruded hollow frame (see FIG. 12) according to the present invention are shown in [Table 3] and [Table 4] below.
  • Fig. 13 shows the maximum displacement and maximum stress analysis results of the extruded hollow frame under static load
  • Fig. 14 shows the maximum displacement and maximum stress analysis results of the extruded hollow frame under impact load.
  • the analysis was conducted in the same way as the KS standard, and the measurement site was also measured in the same place as the KS standard.
  • the load was measured at point A in FIG. 15 to measure the amount of deflection at point B at 14,400 N.
  • Euro foam, aluminum foam, and extruded hollow frame are applied 10 times each by measuring the decibel with a noise meter by applying force to a certain part of the outer frame and panel part of the formwork with a sledgehammer, and the result (unit: decibel (dB)) ) Is shown in Table 6 below as an average value.
  • the PP core inserted in the hollow portion absorbs noise while measuring less noise compared to the euro foam made of iron or the aluminum foam made only of aluminum. Therefore, it can play a role in reducing noise at a slight construction site.
  • each panel was measured by measuring the foamed PP and PP honeycomb models for each thickness with a transmittance device, and the results are shown in FIG. 18.
  • the panel is made of aluminum and wood, so it was not measured because it was not measured.
  • 5t foamed PP has the best permeability, but 10t PP honeycomb is preferred to withstand the stress of poured concrete.
  • a prototype was prepared in which the panel of the formwork applied to the extruded hollow frame was determined, and the deflection test of the formwork was conducted using a large pressure bending tester.
  • Typical aluminum foam and extruded hollow frame-applied dies were compared, and in the case of Eurofoam, there were no panels, so faceplate reinforcement experiments were conducted to compare the respective dies.
  • Extrusion hollow frame-applied dies showed the performance suggested in the KS standard. Was confirmed.
  • the aluminum foam and the extruded hollow frame-applied formwork were subjected to the deflection test of each of the three formwork, and in the case of the euroform, the panel was not present, so the faceplate reinforcement deflection test was performed three times, and the results are shown in FIGS. 20A to 20C, respectively. Did.
  • the amount of deflection was measured to be slightly less than the KS standard.
  • the thickness of the hollow portion of the frame was increased by 1 mm on both sides to analyze.
  • the results shown in FIG. 22 were obtained, and in this case, it was confirmed that the amount of deflection was reduced by 25% or more.
  • FIG. 23 is an exploded perspective view of a formwork frame according to a second embodiment of the present invention
  • FIG. 24 is a structural view of the coupling between the body and the core of the outer frame shown in FIG. 23, and
  • FIG. 25 is an enlarged view of part E of FIG.
  • the frame member for the formwork and the formwork frame according to the second embodiment of the present invention are different from the first embodiment in the form and material of the core and the coupling structure of the outer frame and the corner bracket.
  • the frame member for a formwork according to the second embodiment of the present invention is used as the outer frame 210 of the formwork frame 200, and includes a body 211 and a core 212 ( 24).
  • the body 211 is extruded using an aluminum alloy or a magnesium alloy so that a hollow portion 211a for core filling is formed at an inner center, and has at least one wedge pin fastening hole 211b penetrated in a thickness direction.
  • the wedge pin fastening hole 211b may be punched using a press in the same manner as in the first embodiment.
  • the core 212 is inserted into the hollow portion 211a for core filling of the body 211.
  • the core 212 is configured in the form of a solid core made of aluminum alloy or magnesium alloy material.
  • the manufacturing cost is higher than that of the first embodiment in which a core such as wood and plastic is mixed with a metal core, but it is possible to obtain superior structural rigidity and increase the recycling ratio. It is desirable.
  • the noise canceling effect due to the gap between the body 211 and the core 212 due to the noise canceling effect due to the gap between the body 211 and the core 212, noise generated during installation or dismantling of the formwork can be lower than that of the existing solid steel or solid aluminum frame, thereby minimizing complaints.
  • Table 9 shows the characteristics of the frame members for formwork according to the first and second examples.
  • the formwork frame 200 using the frame member for formwork configured as described above includes an outer frame 210, a corner bracket, and an inner frame 230, as in the first embodiment.
  • the outer frame 210 is made of a frame member for formwork described above, but has a shape in which the core 212 is formed longer than the body 211. That is, the core 212 is exposed at a predetermined length out of the body 211 at both ends in a state inserted into the hollow portion 211a for core filling of the body 211 (see FIG. 25 ).
  • the corner bracket is for connecting the first outer frame member 213 and the second outer frame member 214 to each other.
  • the corner bracket is made of a corner core insert 221.
  • the corner core insert 221 includes a long hole-shaped groove portion 221a disposed perpendicular to each other on both sides, and a protrusion 221b protruding laterally to the upper and lower portions of the groove portion 221a.
  • the exposed ends of the core 212 described above may be inserted into the grooves 221a to be fixed with rivets 222, round head bolts, and the like.
  • a separate inner corner bracket 223 is disposed inside the first outer frame member 213 and the second outer frame member 214 while the ends of the core 212 are inserted into the grooves 221a.
  • Rivets 222, fixed together with round head bolts, etc. can minimize the distortion of the frame, which is preferable.
  • the protrusion 221b is inserted into the groove 211c formed in the upper and lower portions of the hollow portion 211a for core filling of the body 211 of the outer frame 210 to provide a more stable bonding force.
  • the first embodiment that is, the coupling portion of the corner bracket 120 ( Compared to the case where 120b) is inserted and fastened by inserting into the hollow portion 111a for core filling of the body 111 of the outer frame 110, there is an advantage of preventing damage due to cracks.
  • the corner core insert 221 reduces noise during installation and dismantling of the formwork frame 100, prevents impact, prevents sticking of the panel 10 during demolding and transportation, as well as packaging the formwork. It is preferably made of high-strength high-elasticity urethane rubber or synthetic rubber to prevent slipping and prevent industrial accidents, but of course it is possible to be made of metal to improve strength.
  • the inner frame 230 is a first inner frame member 231 connecting the first outer frame member 213 to each other, and the first inner frame member 231 cross-coupled to the second outer frame member 214 to each other It includes a second inner frame member 232 to connect, it is coupled to the inside of the outer frame 210 in the same manner as in the first embodiment.
  • the first inner frame member disposed at both ends of the first inner frame member 231, and the second inner frame member 232 have a b-shaped cross-sectional structure to enable light weight while improving structural rigidity, and the first inner frame member.
  • the first inner frame member installed in the center of the frame 231 has a square tube or C-shaped steel shape, and the first inner frame member 231 and the second inner frame member 232 are joined to each other by welding. , Fixed and integrated.
  • FIG. 26 is an exploded perspective view of a formwork frame according to a third embodiment of the present invention
  • FIG. 27 is a combined structural view of the body and core of the outer frame shown in FIG. 26, and
  • FIG. 28 is an enlarged view of a portion F of FIG.
  • the frame member for the formwork and the formwork frame according to the third embodiment of the present invention are different from the above-described embodiments in the structure of the core and the shape of the corner bracket.
  • the frame member for a formwork according to the third embodiment of the present invention is used as the outer frame 310 of the formwork frame 300, and the body 311 as shown in FIG. And, a core 312 and a wedge pin assembly reinforcement core 313.
  • the body 311 is manufactured using steel, aluminum alloy, magnesium alloy, engineering plastic, and the like so that the hollow portion 311a for core filling is formed inside.
  • the body 311 includes at least one wedge pin fastening hole 311b.
  • Wedge pin fastening hole (311b) is for the insertion of the wedge pin used to connect the formwork frame 300 and the adjacent formwork frame has a form penetrated in the thickness direction of the body 311, the body 311 It is formed at predetermined intervals along the longitudinal direction.
  • the core 312 is for maintaining rigidity while reducing the weight of the frame member for the formwork, and is inserted and filled in the hollow portion 311a for core filling of the body 311.
  • the core 312 is lighter than the material of the body 311 and has a similar strength, such as wood (plywood), foamed/non-foamed plastic, FRP, composite material of sandwich structure, so as to simultaneously secure weight and rigidity Panels or the like can be used.
  • the core 312 has a shorter length than the body 311. That is, the core 312 is formed shorter than the body 311 and is inserted only into an area excluding both ends of the body 311 (hollow part 311a for core filling), and the body 311 is not filled with the core 312.
  • the coupling portions 320b of the corner brackets 320 are inserted at both ends of the portion.
  • a through hole 312a is formed in the core 312.
  • the through holes 312a are for insertion of the wedge pin assembly reinforcement core 313, and are respectively formed at positions corresponding to the wedge pin fastening holes 311b.
  • the wedge pin assembly reinforcement core 313 is inserted into each of the through holes 312a and serves to reinforce the parts to which the wedge pins are fastened, corresponding to the wedge pin fastening holes 311b so that the wedge pins can be penetrated. It has a hole in the form.
  • the wedge pin fastening hole 311b is inserted into the wedge pin assembly reinforcement core 313 to prevent damage to the formwork frame 300 due to concrete pouring.
  • the wedge pin assembly reinforcement core 313 is preferably a metal material having excellent strength, for example, steel, aluminum alloy, magnesium alloy, and the like.
  • forming a through hole 312a in the core 312 itself and inserting a wedge pin assembly reinforcement core 313 into the through hole 312a to reinforce the wedge pin assembly improves assembly and defect rate. It is possible because it is possible.
  • the frame member for formwork has a shape in which the core 312 is composed of a plurality of core members as in the first embodiment, and the wedge pin assembly reinforcement cores are interposed between the core member and the adjacent core members, the worker is Since the core member and the wedge pin assembly reinforcing core have to be repeatedly inserted alternately inside the body, it takes a long time to assemble and the labor cost increases and there is an error in the arrangement of the core member and the wedge pin assembly reinforcing core. In case of failure, it is inevitable.
  • the operator inserts the reinforcement core 313 of the wedge pin assembly into the plurality of through holes 312a formed in one core 312 and then inserts the core 312. Since the assembly is completed by inserting only once into the hollow portion 311a for core filling of the body 311, there is no need to alternately insert the core and the reinforcing core alternately or to consider the order of insertion thereof, which significantly shortens the working time. The defect rate can also be minimized.
  • the formwork frame 300 includes an outer frame 310 and a corner bracket 320.
  • the outer frame 310 includes a first outer frame member 314 and a second outer frame member 315 made of the frame member for formwork described above. Two first outer frame members 314 are disposed to face each other, and two second outer frame members 315 are similarly provided and disposed at both ends of the first outer frame member 314, respectively. That is, the first outer frame member 314 and the second outer frame member 315 form a rectangular shape as a whole.
  • the outer frame 310 may be made of any one material selected from steel, aluminum alloy, magnesium alloy, and engineering plastic.
  • the corner bracket 320 is for connecting and fixing the first outer frame member 314 and the second outer frame member 315 and is installed at each corner of the outer frame 310. 28, the corner bracket 320 includes a body portion 320a and a coupling portion 320b formed to protrude perpendicularly to both ends of the body portion 320a.
  • the coupling parts 320b are respectively inserted into both ends where the core 312 is not filled in the hollow part 311a for core filling of the outer frame 310, and are fixed using fastening means such as rivets 322 in this state. do.
  • the conventional first outer frame member 314 and the second outer frame member 315 are combined by configuring the corner bracket 320 in an inserted manner, the conventional first outer frame member 314 and the second outer frame member 315 are combined.
  • a bottom surface is provided at the bottom, and this bottom surface can be used for coupling with the panel 10.
  • corner bracket 320 may be made of any one selected from engineering plastics, aluminum alloys, magnesium alloys, and steel, and the brackets 321 may be selected from general structural rolled steel, stainless steel, aluminum alloys, and engineering plastics. It can be done.
  • the impact preventing insert 323 may be inserted into any one or more of the top and bottom of the body portion 320a.
  • the impact preventing insert 323 is intended to reduce noise generated during demolding or transportation of the formwork frame 300, and to prevent various impacts and sticking of the panel 10, and is made of synthetic rubber, engineering plastic, or metal. , It is fixed to the body portion 320a using fastening means such as bolts and rivets.
  • an inner frame 330 may be coupled to the inner side of the outer frame 310.
  • the inner frame 330 may be made of any one selected from general structural rolled steel, stainless steel, aluminum alloy, magnesium alloy, and composite materials.
  • the inner frame 330 is cross-coupled to the first inner frame member 331 connecting the first outer frame member 314 to each other, and the first inner frame member 331, the second outer frame member 315 It includes a second inner frame member 332 connecting each other.
  • the first inner frame member 331 and the second inner frame member 332 is preferably composed of at least two or more to improve the structural rigidity of the formwork frame 300, the size and use of the formwork frame 300 It can be expanded appropriately considering the like.
  • the first inner frame member 331 and the second inner frame member 332 will be described as an example consisting of three.
  • the first inner frame member disposed in the center among the plurality of first inner frame members 331 preferably has a C-shaped steel or a square tube shape. Because, when the support force of the middle part of the formwork is weak, the filling effect may occur during the curing process of concrete, so the center of the formwork is formed in the form of a C-shaped steel or a square tube to improve the support capacity to prevent the filling effect.
  • first inner frame member and the second inner frame member 332, which are disposed at both ends of the plurality of first inner frame members 331, like the other embodiments, improve the structural rigidity and reduce the weight of the vertical part ( 332a) and a horizontal portion 332b may have an isosceles-shaped cross-section structure.
  • a fastening portion 332c is formed at one end of the vertical portion 332a and the horizontal portion 332b.
  • the fastening portion 332c is formed by bending one end of the vertical portion 332a to the outside, and one end of the horizontal portion 332b being bent inward, and rivets 333 in a grounded state with the inner circumferential surface of the outer frame 310 Etc.
  • the first inner frame member 331 also has an isosceles-shaped cross-sectional structure including vertical and horizontal parts, and a fastening part is formed at one end. Combined with the frame.
  • the inner frame 330 configured as described above may be made of rolled steel for general structure, stainless steel, aluminum alloy, magnesium alloy, and composite material.
  • the formwork frame described above has a reduced assembly time compared to the formwork frame according to the first embodiment, which can reduce costs by 70% or more, improve the defect rate from 1% or more to 0%, and the core itself has a weight of 11g. It is estimated that it can be reduced by about 5 times from /dog to 2.4g/dog.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

La présente invention concerne un élément de cadre pour un moulage et un cadre de moulage l'utilisant. La présente invention concerne un élément de cadre pour un moulage et un cadre de moulage l'utilisant. L'élément de cadre comprend : un corps qui est moulé par extrusion de telle sorte qu'une partie de cavité pour remplissage de noyau soit formée à son centre, et qui a au moins un trou de couplage de broche à coincement qui le traverse dans la direction de l'épaisseur; et un noyau qui remplit la partie de cavité pour remplissage de noyau. Dans un état dans lequel la partie de cavité pour remplissage de noyau est remplie avec le noyau, le trou de couplage de broche à coincement est formé par perforation séquentielle d'une paroi externe du corps, du noyau, et d'une paroi interne du corps au moyen d'une presse, et une partie de bord circonférentiel du trou de couplage de broche à coincement perforée dans la paroi externe est renfoncée vers l'intérieur et pressée contre le noyau. Ainsi, l'élément de cadre est léger, a une rigidité structurale élevée, peut être fabriqué à faible coût, et est facile à assembler.
PCT/KR2019/017497 2018-12-11 2019-12-11 Élément de cadre pour moulage, et cadre de moulage l'utilisant WO2020122597A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2018-0159236 2018-12-11
KR20180159236 2018-12-11
KR10-2019-0037985 2019-04-01
KR1020190037985A KR102151343B1 (ko) 2019-04-01 2019-04-01 거푸집용 프레임부재와 이를 이용한 거푸집 프레임
KR1020190069369A KR102274188B1 (ko) 2018-12-11 2019-06-12 거푸집용 프레임부재와 이를 이용한 거푸집 프레임
KR10-2019-0069369 2019-06-12

Publications (1)

Publication Number Publication Date
WO2020122597A1 true WO2020122597A1 (fr) 2020-06-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220282503A1 (en) * 2017-10-12 2022-09-08 George CHARITOU Construction component

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040069926A1 (en) * 2001-02-23 2004-04-15 Ward Philip T. Concrete forming panel having built-in retaining structure for storing loose coupling parts
JP2011012532A (ja) * 2009-06-02 2011-01-20 Kajima Corp 型枠パネル、型枠パネルの組立て方法、型枠パネルの曲率調整治具
KR20150095641A (ko) * 2012-10-30 2015-08-21 하이드로 알루미늄 롤드 프로덕츠 게엠베하 알루미늄 복합 재료 및 성형 방법
KR20150116373A (ko) * 2014-04-07 2015-10-15 피앤케이에코 주식회사 친환경 초경량 소음 및 충격감쇠용 하이브리드구조의 거푸집 프레임 및 이를 이용한 거푸집 폼
KR20160109551A (ko) * 2015-03-12 2016-09-21 정종필 테이블 다리용 결착구

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040069926A1 (en) * 2001-02-23 2004-04-15 Ward Philip T. Concrete forming panel having built-in retaining structure for storing loose coupling parts
JP2011012532A (ja) * 2009-06-02 2011-01-20 Kajima Corp 型枠パネル、型枠パネルの組立て方法、型枠パネルの曲率調整治具
KR20150095641A (ko) * 2012-10-30 2015-08-21 하이드로 알루미늄 롤드 프로덕츠 게엠베하 알루미늄 복합 재료 및 성형 방법
KR20150116373A (ko) * 2014-04-07 2015-10-15 피앤케이에코 주식회사 친환경 초경량 소음 및 충격감쇠용 하이브리드구조의 거푸집 프레임 및 이를 이용한 거푸집 폼
KR20160109551A (ko) * 2015-03-12 2016-09-21 정종필 테이블 다리용 결착구

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220282503A1 (en) * 2017-10-12 2022-09-08 George CHARITOU Construction component
US11686109B2 (en) * 2017-10-12 2023-06-27 George CHARITOU Panel assembly for forming a floor of a construction component

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