PLATE WELDING-TYPE ANCHOR CHANNEL AND METHOD FOR MANUFACTURING SAME
There are provided a plate welding-type anchor channel that is buried when concrete is poured at the time of constructing a building to fix various external installations to a concrete structure later, and a method for the same. The anchor channel includes a stem plate (40) and an anchor head plate (50) that are coupled to be fixed, and can further improved anchorage performance as compared to the related art and to easily produce products of various standards. As a configuration of the plate welding-type anchor channel, a lower end (42) of the stem plate (40) of an anchor (30) is coupled to a top surface (24) of a channel (20) through welding to have a length (L1) in a direction perpendicular to the top surface (24) of the channel (20). Further, the anchor head plate (50) has a predetermined length (L2) and width (w2), and an upper end (44) of the stem plate (40) is coupled to a bottom surface (52) through welding to be perpendicular to a length (L1) direction of the stem plate (40).
This application is a National Phase of PCT Patent Application No. PCT/KR2011/009816 having International filing date of Dec. 20, 2011, which claims the benefit of priority of Korean Patent Application No. 10-2011-0137060 filed on Dec. 19, 2011. The contents of the above applications are all incorporated by reference as if fully set forth herein in their entirety.
TECHNICAL FIELDThe present invention relates to a plate welding-type anchor channel and a method for manufacturing the same, and more particularly, a plate welding-type anchor channel that is buried when concrete is poured at the time of constructing a building to fix various external installations to a concrete structure later, and a method for manufacturing the same.
BACKGROUND ARTAn anchor channel or an anchor rail provide functions for fixing or easily separating various installations to or from a wall surface of a building, for example, fixation of a curtain wall of a building and various panels, fixation of a rail provided in a factory and a warehouse, fixation of a service wiring to a wall surface of a tunnel, and fixation of a chair in the gym, and, thus, application fields thereof have been expanded.
Such an anchor channel includes an anchor that is buried in concrete when the concrete is poured, and a channel in which a guide space into which an external fastener such as a T bolt is inserted is exposed to the outside of the concrete. At this time, the channel is supported by the anchor to be stably fixed to the concrete, and the fastener is coupled to the channel later to fix various installations to a concrete wall surface. In general, the channel having a standardized shape and size is provided to be coupled to the fastener inserted from the outside.
Meanwhile, unlike the channel having the standardized shape and size, in the anchor channel, various shapes of anchors are proposed. “Anchor rail” disclosed in Korean Patent Registration No. 10-0260341 proposes a technology in which an anchor rail for building construction includes one or more anchors protruding from an anchor rail, an anchor lower part that is coupled to the anchor rail in a shape fitting manner, and one attachment part that is positioned at a free end formed a shank of the anchor, and the shank of the anchor is at least manufactured as a tube having a predetermined length.
Further, “Integrated channel buried in concrete structure” disclosed in Korean Patent Registration No. “10-0712233” proposes a technology in which a channel includes a bolt that is fastened to a bracket supporting a supporting target; a body whose upper ends at both sides are inclined to protrude toward the inside in order to prevent the bolt from being separated; and a support that is integrally formed with a bottom surface of the body to prevent the body from being pulled out, and the channel is buried in building structures such as a slab and a wall.
Furthermore, “Anchor rail” disclosed in Korean Patent Publication No. 10-2010-0070297 suggests a technology in which an anchor rail includes a rail body, the rail body is provided with an accommodating space for accommodating a fastening component for fixing a fixation element to the anchor rail, the rail body is provided with a hole, and a coupling component for fixing an anchor element to the rail body is provided within the hole. In addition, the coupling component is formed as a rivet, a fixation section of the rivet inserted into the hole is expanded to fix the rivet to the rail body, and the rivet is provided with a fixing means for fixing the anchor element to the rail body.
Moreover, “Method for manufacturing improved buried-type channel for fixing fastener” disclosed in Korean Patent Registration No. 10-0995121 suggests a technology in which a channel includes a channel in which both sides at an opened top are rounded inward so as to prevent an inserted T bolt from being separated; and a plurality of anchors that is integrally joined to a bottom surface of the channel in a line, and the anchor includes a main body in which one end is integrally joined to a lower part of the channel to have a steel bar shape; and a disc-shaped support that is integrally formed at the other end of the main body.
Referring to
The configuration of the anchor channel is largely divided into the channel and the anchor. An existing standard product is typically used as the channel, and the anchor is divided into the anchor head and various types of anchor channels depending on geometrical features of the stem or coupling methods. The anchor has a great influence on anchorage performance of the anchor channel and producible standards and cost.
Accordingly, the anchor channel according to the related art needs to improve the anchorage performance with the concrete structure or needs to have a new improved shape in order to increase production efficiency. That is, the anchor head in the anchor channel according to the related art is integrally formed through rolling (for example, (a), (b), (c) and (d) of
In addition, since the rolling process (particularly, (d) of
Moreover, when the anchor head is inserted into the channel to assembly as shown in (a) of
In addition, in (e) of
In order to solve the problems of the related art, an object of the present invention is to provide a new plate welding-type anchor channel that is buried when concrete is poured at the time of constructing a building to fix various external installations to a concrete structure later with which it is possible to improve anchorage performance in terms of structure to exhibit stabilized performance in being coupled to a concrete structure and it is possible to conveniently manufacture anchor channels of various standards, and a method for manufacturing the same.
Technical SolutionIn order to achieve the above object, an embodiment of the present invention provides a plate welding-type anchor channel that is buried when concrete is poured at the time of constructing a building to fix various external installations to a concrete structure later. The anchor channel includes a channel (20) that has a predetermined width (W) and includes a bottom surface (22) and a top surface (24), in which a guide space (21) is formed to be opened in the bottom surface (22) so as to allow an external fastener to be moved in a longitudinal direction, and that is buried in the concrete so as to allow the guide space (21) to be exposed to the outside of the concrete; and an anchor (30) that is coupled to the top surface (24) of the channel (20) and is buried in the concrete when the concrete is poured. The anchor (30) includes: a stem plate (40) in which a lower end (42) is coupled to the top surface (24) of the channel (20) through welding so as to have a length (L1) in a direction perpendicular to the top surface (24) of the channel (20); and an anchor head plate (50) that has a predetermined length (L2) and width (w2), and in which an upper end (44) of the stem plate (40) is coupled to a bottom surface (52) through welding so as to be perpendicular to a length (L1) direction of the stem plate (40).
In the plate welding-type anchor channel having the aforementioned feature, the anchor head plate (50) and the stem plate (40) of the anchor (30) may be made from plates, and have widths (w1 and w2) within the width (W) of the channel (20).
In the plate welding-type anchor channel having the aforementioned feature, a horizontal cross-sectional area (A2) of the anchor head plate (50) of the anchor (30) may be 10 times greater than a horizontal cross-sectional area (A1) of the stem plate (40).
In the plate welding-type anchor channel having the aforementioned feature, the stem plate (26) of the anchor (30) may be provided with holes (45).
In order to achieve the above object, another embodiment of the present invention provides a method for manufacturing a plate welding-type anchor channel that is buried when concrete is poured at the time of constructing a building to fix various external installations to a concrete structure later. The method includes: preparing a channel (20) that has a predetermined width (W) and includes a bottom surface (22) and a top surface (24), in which a guide space (21) is formed to be opened in the bottom surface (22) so as to allow an external fastener to be moved in a longitudinal direction, and that is buried in the concrete so as to allow the guide space (21) to be exposed to the outside of the concrete, and an anchor (30) that is coupled to the top surface (24) of the channel (20) and is buried in the concrete when the concrete is poured; and integrally coupling the channel and the anchor. The preparing the anchor (30) includes: preparing a first plate (40′) and a second plate (50′) that are made from plates having predetermined lengths (L1 and L2) and widths (w1 and w2); coupling an upper end (44) of the first plate (40′) to a bottom surface (54) of the second plate (50′) through welding to be perpendicular to a length (L1) direction of the first plate (40′); and coupling a lower end (42) of the first plate (40′) through welding to be perpendicular to the top surface (24) of the channel (20).
In the method for manufacturing a plate welding-type anchor channel, the preparing the anchor (30) may include forming a hole (45) in the first plate (40′).
Effect of the InventionIn accordance with a plate welding-type anchor channel and a method for manufacturing the same according to the present invention, since plate materials are welded to form an anchor head, it is possible to exhibit further geometrically improved anchorage performance as compared to the anchor channel according to the related art in which the anchor head is formed through rolling, and it is possible to easily produce products of various standards. As a result, it is possible to apply to small quantity batch production and to reduce cost of the product. Particularly, when the stem plate provided with the holes is applied to the anchor channel, since the local bearing stress applied to the concrete from the anchor head is further decreased, it is possible to further improve the anchorage performance of the anchor channel. Therefore, recent construction tends to further improve safety while connecting heavy-weight important installations to the concrete structure by the anchor channel using the plate welding method, it is possible to exhibit the most excellent effect in terms of the anchorage performance. Furthermore, in accordance with the plate welding-type anchor channel according to the present invention, it is possible to easily realize production of high production efficiency, excellent performance, and a stabilized welding quality by a very advanced welding controlling technology and a production automating technology.
Referring to
The anchor channel according to the related art shown in (a) of
The anchor head according to the related art shown in (b) of
The anchor channel according to the related art shown in (c) of
The anchor channel according to the related art shown in (d) of
The anchor channel according to the related art shown in (e) of
The anchor channel according to the related art shown in (f) of
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to
Referring to
At this time, the channel 20 has a predetermined width W, and includes a bottom surface 22 and a top surface 24. A guide space 21 is formed to be opened in the bottom surface 22 so as to allow an external fastener to be moved in a longitudinal direction, and the channel is buried in the concrete to allow the guide space 21 to be exposed to the outside of the concrete. The channel 20 is formed to allow the external fastener such as a T bolt to be inserted into the guide space 21, and has a standardized shape and size so as to be coupled to the fastener inserted from the outside.
The anchor 30 is coupled to the top surface 24 of the channel 20, and is buried in the concrete at the time of pouring the concrete. In the present embodiment, the anchor 30 includes a stem plate 40 and an anchor head plate 50. Here, a lower end 42 of the stem plate 40 is coupled to the top surface 24 of the channel 20 through welding so as to have a length L1 in a direction perpendicular to the tope surface 24 of the channel 20. The anchor head plate 50 is formed to have a predetermined length L2 and width w2, and an upper end 44 of the stem plate 40 is coupled to a bottom surface 52 through welding so as to be perpendicular to a length (L1) direction of the stem plate 40.
Meanwhile, in the present invention, the anchor head plate 50 and the stem plate 40 of the anchor 30 are made from plates, and are formed to have widths w1 and w2 within the width W of the channel 20. That is, in the present embodiment, the anchor head plate 50 and the stem plate 40 of the anchor 30 are preferably manufactured using plates having widths slightly smaller the width W of the channel 20 and the same width, so that it is possible to improve convenience to manufacture.
Further, as described above, in the plate welding-type anchor channel 10 according to the present embodiment, in order to maximize anchorage performance, a horizontal cross-sectional area A2 of the anchor head plate 50 of the anchor 30 is 10 times greater than a horizontal cross-sectional area A1 of the stem plate 40.
In the related art in which the anchor channel 10 is formed through rolling, bearing strength is increased depending on an angle on an inner surface of the anchor head (particularly, a portion adjacent to the stem). However, in the plate welding-type anchor channel 10 according to the preferred embodiment of the present invention, since the stem plate 40 and the anchor head plate 50 are made from the plates and are coupled to each other to be perpendicular, the bearing strength is relatively less, so that it is possible to improve anchorage performance.
Further, in the plate welding-type anchor channel 10 according to the preferred embodiment of the present invention, a length of a circumference of a joined portion of the stem plate 40 and the anchor head plate 50 is maximized to reduce local bearing as compared to the related art. As you know, low local bearing means low slip, and the low slip increases an anchorage effect. Furthermore, as you know, the portion (the circumference length) adjacent to the stem is maximized to maximize a concrete conical failure area. Since the conical failure area of the plate welding-type anchor channel 10 according to the present embodiment is increased, even though an installation depth of the anchor 30 is shallower than that of an existing anchor, it is possible to secure the same area or larger. Even though a length L1 of the anchor 30 is shorter than that of the anchor channel according to the related art, it is possible to exhibit anchorage performance of the same level or higher.
Referring to
More specifically, in the method for manufacturing the plate welding-type anchor channel according to the preferred embodiment of the present invention, the channel 20, a first plate 40′ for the stem plate 40 and a second plate 50′ for the anchor head plate 50 are prepared, and are integrally coupled through welding.
In general, in the preferred embodiment of the present invention, the first plate 40′ and the second plate 50′ have different thicknesses and the same material strength, but may be easily applied to a case where the first plate and the second plate need to have the same thickness or different material strengths. In the anchor channel according to the related art, since the anchor is integrally made of a single material through rolling, one material strength is merely used. In addition, in the anchor channel according to the related art, the anchor is manufactured through rolling. That is, since standards of the anchor head and the stem have only several limited dimensions, it is difficult to produce anchor channels having various optimized dimensions required on site.
At this time, since the channel 20 having a standard size and shape is typically provided, the channel 20 is formed to be suitable for a general standard. Further, the first and second plates 40′ and 50′ for the stem plate 40 and the anchor head plate 50 of the anchor 30 are prepared using the width W of the channel 20 as a reference. That is, the first plate 40′ and the second plate 50′ are made from plates having predetermined lengths L1 and L2 and widths w1 and w2. Furthermore, the upper end 44 of the first plate 40′ is coupled to a bottom surface 54 of the second plate 50′ through welding to be perpendicular to the length (L1) direction of the first plate 40′, and the lower end 42 of the first plate 40′ is coupled through welding to be perpendicular to the top surface 24 of the channel 20.
Meanwhile, in the preferred embodiment of the present invention, in the step of preparing the anchor 30, holes 45 may be additionally formed in the first plate 40′. Under the condition where the cross-sectional area A1 and the thickness ‘t’ are the same, when the stem plate 40 of
As stated above, although the plate welding-type anchor channel according to the preferred embodiment of the present invention has been illustrated in conjunction with the aforementioned descriptions and drawings, these descriptions and drawings are merely presented as examples. It is to be appreciated that those skilled in the art can variously change or modify the embodiments without departing from the technical spirit of the present invention.
Mode for InventionThe plate welding-type anchor channel shown in
Referring to
At this time, the channel 20 has the predetermined width W, and includes the bottom surface 22 and the top surface 24. The guide space 21 is formed to be opened in the bottom surface 22 so as to allow the external fastener to be moved in the longitudinal direction, and the channel is buried in the concrete so as to allow the guide space 21 to be exposed to the outside of the concrete. The channel 20 is formed so as to allow the external fastener such as a T bolt to be inserted in the guide space 21, and has a standardized shape and size to be coupled to the fastener inserted from the outside. Further, the anchor 30 is coupled to the top surface 24 of the channel 20, and is buried in the concrete when the concrete is poured.
Since the plate welding-type anchor channel 10 according to the present invention includes the stem plate 40, the anchor head plate 50 and the channel 20 that are coupled to be fixed through welding, it is possible to further improve the anchorage performance as compared to the anchor channel according to the related art, and it is possible to easily produce products of various standards.
At this time, the lower end 42 of the stem plate 40 of the anchor 30 is coupled to the top surface 24 of the channel 20 through welding so as to have the length L1 in the direction perpendicular to the top surface 24 of the channel 20. Moreover, the anchor head plate 50 is formed to have the predetermined length L2 and width w2, and the upper end 44 of the stem plate 40 is coupled to the bottom surface 52 through welding to be perpendicular to the length (L1) direction of the stem plate 40.
Unlike the related art in which the anchor channel is formed through rolling, the anchor head plate 50 and the stem plate 40 of the anchor 30 according to the present invention are obtained by cutting general plate materials that are variously provided and are welded to allow the channel 20, the stem plate 40 and the anchor head plate 50 to be fixed. Accordingly, it is possible to further improve the anchorage performance as compared to the anchor channel according to the related art, so that it is possible to improve stability of the installations and the concrete structure connected to the anchor channel. In addition, it is possible to easily produce products of various standards, and it is possible to provide various sizes and shapes of anchor channels when necessary without using a large scale facility for rolling. As a result, the various sizes and shapes of anchor channels can be easily applied to small quantity batch production.
As shown in
More specifically, in order to describe the feature of the plate welding-type anchor channel 10 according to the present invention, a rectangular plate structure is exemplified. In the rectangular plate structure, the widths w1 and w2 of the stem plate 40 and the anchor head plate 50 are preferably the same. At this time, since the horizontal cross-sectional area A2 of the anchor head plate 50 is 10 times greater than the horizontal cross-sectional area A1 of the stem plate 40, it is possible to secure sufficient anchorage performance. In the present invention, limitations of the cross-sectional areas of the stem plate 40 and the anchor head plate 50 are applied based on a proportional relation between the most suitable cross-sectional areas for the anchor head and the stem which has been proposed by Abdel-Salam Mokhatar, Amin Ghali and Walter Diger et al., in “Stud Shear Reinforcement for Flat Concrete Plates,” ACI Journal (TECHNICAL PAPER), Title no. 82-60.
Based on a recent research result, it can be seen through experiments that as the bearing stress applied to the inner surface of the anchor head, particularly, the circumference of the stem coming in contact with the anchor head is low, the anchorage effect is excellent.
Referring to
As shown in (a), (b) and (c) of
(a) of
Furthermore, as shown in (d) and (e) of
In (d) of
As shown in (d) and (e) of
Since the plate welding-type anchor channel according to the present invention corresponds to (e) of
Referring to
(a) of
(b) of
(c) of
In accordance with a plate welding-type anchor channel and a method for manufacturing the same according to the present invention, since plate materials are welded to form an anchor head, it is possible to exhibit further geometrically improved anchorage performance as compared to the anchor channel according to the related art in which the anchor head is formed through rolling, and it is possible to easily produce products of various standards. As a result, it is possible to apply to small quantity batch production and to reduce cost of the product. Particularly, when the stem plate provided with the holes is applied to the anchor channel, since the local bearing stress applied to the concrete from the anchor head is further decreased, it is possible to further improve the anchorage performance of the anchor channel. Therefore, recent construction tends to further improve safety while connecting heavy-weight important installations to the concrete structure by the anchor channel using the plate welding method, it is possible to exhibit the most excellent effect in terms of the anchorage performance. Furthermore, in accordance with the plate welding-type anchor channel according to the present invention, it is possible to easily realize production of high production efficiency, excellent performance, and a stabilized welding quality by a very advanced welding controlling technology and a production automating technology.
Claims
1. A plate welding-type anchor channel that is buried when concrete is poured at the time of constructing a building to fix various external installations to a concrete structure later, the anchor channel comprising:
- a channel (20) that has a predetermined width (W) and includes a bottom surface (22) and a top surface (24), in which a guide space (21) is formed to be opened in the bottom surface (22) so as to allow an external fastener to be moved in a longitudinal direction, and that is buried in the concrete so as to allow the guide space (21) to be exposed to the outside of the concrete; and
- an anchor (30) that is coupled to the top surface (24) of the channel (20) and is buried in the concrete when the concrete is poured,
- wherein the anchor (30) includes:
- a stem plate (40) in which a lower end (42) is coupled to the top surface (24) of the channel (20) through welding so as to have a length (L1) in a direction perpendicular to the top surface (24) of the channel (20); and
- an anchor head plate (50) that has a predetermined length (L2) and width (w2), and in which an upper end (44) of the stem plate (40) is coupled to a bottom surface (52) through welding so as to be perpendicular to a length (L1) direction of the stem plate (40).
2. The plate welding-type anchor channel of claim 1, wherein the anchor head plate (50) and the stem plate (40) of the anchor (30) are made from plates, and have widths (w1 and w2) within the width (W) of the channel (20).
3. The plate welding-type anchor channel of claim 1, a horizontal cross-sectional area (A2) of the anchor head plate (50) of the anchor (30) is 10 times greater than a horizontal cross-sectional area (A1) of the stem plate (40).
4. A method for manufacturing a plate welding-type anchor channel that is buried when concrete is poured at the time of constructing a building to fix various external installations to a concrete structure later, the method comprising:
- preparing a channel (20) that has a predetermined width (W) and includes a bottom surface (22) and a top surface (24), in which a guide space (21) is formed to be opened in the bottom surface (22) so as to allow an external fastener to be moved in a longitudinal direction, and that is buried in the concrete so as to allow the guide space (21) to be exposed to the outside of the concrete, and an anchor (30) that is coupled to the top surface (24) of the channel (20) and is buried in the concrete when the concrete is poured; and
- integrally coupling the channel and the anchor,
- wherein the preparing the anchor (30) includes:
- preparing a first plate (40′) and a second plate (50′) that are made from plates having predetermined lengths (L1 and L2) and widths (w1 and w2);
- coupling an upper end (44) of the first plate (40′) to a bottom surface (54) of the second plate (50′) through welding to be perpendicular to a length (L1) direction of the first plate (40′); and
- coupling a lower end (42) of the first plate (40′) through welding to be perpendicular to the top surface (24) of the channel (20).
5. The method for manufacturing a plate welding-type anchor channel of claim 4, wherein the preparing the anchor (30) includes forming a hole (45) in the first plate (40′).
6. The plate welding-type anchor channel of claim 2, a horizontal cross-sectional area (A2) of the anchor head plate (50) of the anchor (30) is 10 times greater than a horizontal cross-sectional area (A1) of the stem plate (40).
Type: Application
Filed: Dec 20, 2011
Publication Date: Oct 30, 2014
Inventor: Jae-Ho Lee (Busan)
Application Number: 14/359,302
International Classification: E04B 1/41 (20060101);