JP4231911B2 - Steel slat formwork and method for manufacturing the same - Google Patents

Description

  The present invention relates to a steel dam plate formwork such as an independent foundation, a beam including a small beam, and a column base. Specifically, the handling of the cast concrete is simplified by using a steel dam plate made light in weight. The present invention relates to a steel dam plate formwork that can reduce the amount of separator used to hold the shape of the formwork while restricting outflow, and a method for manufacturing the same.

The conventional formwork method using plywood requires laborious work and a predetermined period of construction, and after work, it is criticized from the attention to the recent environmental problems by generating a lot of building residue. However, as an alternative method, a steel dam plate formwork method with an integrated keystone plate was developed and used for independent foundations, underground beams and column bases for foundation work. Many plates have been used as beam driving form by bending the plate into a beam groove type. (Patent Document 1)
However, even in the typical lath formwork method of steel dam plate formwork method, since the amount of concrete outflow increases depending on the inclination direction of the lath plate piece part, it is important to distinguish the vertical direction of the dam plate. Therefore, in order to cause a failure that impairs workability as a result, the inclination direction of the mesh constituting the lath net portion is set to be centered on the boundary plate portion while being inclined downward on one side. Formwork weirs have also been proposed to prevent directional work errors. (Patent Document 2)
As mentioned above, the steel dam plate formwork method has excellent precision quality by factory production, simple work just to set a formwork that is easy to handle and no need to demold the formwork after placing concrete. Although it has made many contributions to rationalization measures such as improving work efficiency and eliminating building residual materials by some effects, any steel dam plate formwork method constitutes a formwork dam plate. Since the steel is made of steel, it is necessary to handle a considerable amount of weight. At the same time, the improved steel dam plate formwork method still needs to pay attention to the installation direction of the dam plate. Problems were pointed out, such as an increase or decrease in the flow rate of concrete if the selection was made incorrectly.
Japanese Patent Publication No. 2001-73452 Japanese Patent Publication No. 2002-138663

  The present invention reduces the weight of the steel dam plate formwork itself, such as independent foundations, beams including column beams and column bases, and is made of steel when installing the steel dam plate formwork. Separating the shape of the steel dam plate by simplifying the handling of the steel dam plate by eliminating the need to select the installation direction when assembling the dam, and maintaining the form shape while restricting the outflow of concrete from the steel dam Steel dam plate formwork that can reduce the total cost of steel dam plate form work and its manufacture, because work efficiency is excellent and demolding is unnecessary by reducing the number of used steel The purpose is to provide a method.

The first steel dam plate form according to the present invention is formed at an arbitrary interval along the transverse direction of the steel dam plate and has a bent groove portion having a predetermined width extending in the height direction of the steel dam plate. The corners formed by projecting in the height direction of the steel weir plate by connecting the corners projecting in the transverse direction of the steel weir plate to the bottom surface of the bent groove portion and the side surface of the steel weir plate are mutually connected. The expansion molding rhombus row and the expansion molding rhombus row, both of which are used as the drainage holes for the surplus concrete and the through holes for the mold clamping separator, are arranged on the bottom surface of the bent groove and the side surface of the steel dam plate. It is configured by arranging a plurality.

The second steel dam plate form according to the present invention is a bent groove portion having a predetermined width that is formed at an arbitrary interval along the transverse direction of the steel dam plate and extends in the height direction of the steel dam plate. It is arranged on the bottom surface of the bent groove portion and the side surface of the steel dam plate and is connected to a predetermined width connecting portion formed in the height direction of the steel dam plate. Concrete surplus water discharge holes and formwork that join the corners protruding in the transverse direction of the steel weir plate and place the corners formed by protruding in the height direction of the steel weir plate apart from each other One or a plurality of extended molded rhombus rows and extended molded rhombus rows that are also used as through holes for fastening separators are arranged on the bottom surface of the bent groove portion and the side surface of the steel dam plate.

  The third steel dam plate form according to the present invention is the above-described first and second steel dam form, in which the corners of the projecting corners arranged to be spaced apart from each other in the width direction of the form are smooth. Thus, it is configured to avoid danger during handling.

  According to the first method of manufacturing a steel dam plate form according to the present invention, a thin steel plate having a predetermined width is cut into a predetermined length suitable for constituting the height of the steel dam plate, and a rhombus frame is formed in a predetermined length direction. Bend in the width direction of the thin steel sheet, evenly spaced rhombus frame rows in which the parallel corners on both sides of the rhombus frame portion formed adjacent to each other in the predetermined width direction are connected to each other. Punched leaving an interval that can be formed by bending the groove.

  Next, the thin steel plates punched out so that the even-numbered rhombus frame portions are arranged in the direction of the predetermined width are sent to the bending device, and the even-numbered rhombus frame row is arranged on the bottom surface of the bent groove portion and the side surface of the steel weir plate The bending groove portion is folded on the surface of the thin steel plate by a group of bending rollers arranged at predetermined intervals so as to be formed.

  Further, the even-numbered rhombus frame row is formed by gradually expanding the interval between the upper and lower rollers on both sides of the bent groove portion at the center position by gripping the protruding surfaces on both sides of the bent groove portion with the upper and lower rollers. By expanding, an even-numbered expanded rhombus array is formed.

  In addition, the same molding as the central portion is sequentially repeated for the side surface of the outer steel dam plate and the bent groove portion after the bent groove portion having the even-numbered extended molding rhombus array formed in the central portion. In this way, even-numbered expansion-molded rhombus rows having a predetermined shape are formed on the bottom surface of each bent groove portion and the side surface of the steel dam plate.

  According to the second method of manufacturing a steel dam plate form according to the present invention, a thin steel plate having a predetermined width is cut into a predetermined length suitable for constructing the height of the steel dam plate, and the rhombus frame is formed in the predetermined length direction. The odd-numbered rhombus frame rows that are spaced apart from each other and are adjacent to each other in the direction of a predetermined width so that the parallel corners on both sides of the rhombus frame are connected to each other are bent in the width direction of the thin steel plate. Punched to leave a space that can be formed.

  Next, the thin steel plate punched out so that the odd diamond frame portions are arranged in a predetermined width direction is sent to the bending device, and the odd diamond frame row is formed on the bottom surface of the bent groove portion and the side surface of the steel dam plate. The bending groove portion is folded on the surface of the thin steel plate by a group of bending rollers arranged at predetermined intervals so as to be formed.

  Further, with respect to the folded groove portion at the center position, the protruding surfaces on both sides of the folded groove portion and the rhombus frame portion row other than the center are gripped by the upper and lower rollers, and the interval between the upper and lower rollers on both sides is gradually enlarged. Thus, the central rhombus frame row is expanded to form a central expanded rhombus row.

  After that, the center extended molding rhombus row is gripped by the upper and lower rollers, and the rhombus frame portion row other than the center is released from the grip of the upper and lower rollers, and the interval between the upper and lower rollers on both sides is further expanded, thereby The rhombus frame portion row is expanded to form an odd-numbered expansion-shaped rhombus row.

  In addition, the same molding as the central portion is sequentially repeated for the side surface of the outer steel dam plate and the bent groove portion after the bent groove portion having the odd-numbered expanded rhombus array formed in the central portion. The odd-numbered expansion-shaped rhombus rows having a predetermined shape are formed on the bottom surface of each bent groove portion and the side surface of the steel dam plate.

  According to the third method of manufacturing a steel dam plate form according to the present invention, a thin steel plate having a predetermined width is cut into a predetermined length suitable for constituting the height of the steel dam plate, and the rhombus frame is formed in the predetermined length direction. The width of the thin steel plate is an even number of rhombus frame rows that are connected to a connecting portion of a predetermined width formed by separating the portions from each other and forming parallel corners on both sides of the rhombus frame portion adjacent to each other in a predetermined width direction. Punching is performed leaving an interval that can be formed by bending the bent groove portion in the direction.

  Next, the thin steel plates punched out so that the even-numbered rhombus frame portions centered on the central connecting portion are arranged in a predetermined width direction are sent to the bending device, and the both sides connected to the central connecting portion are connected. The bent groove portions are folded on the surface of the thin steel plate by a group of bending rollers arranged at predetermined intervals so that even-numbered rhombus frame portions are formed on the bottom surface of the bent groove portion and the side surface of the steel dam plate.

  In addition, the rhombus frame array is expanded by gradually expanding the gap between the upper and lower rollers on both sides of the folded groove at the center position by gripping the protruding surfaces on both sides of the bent groove with the upper and lower rollers. Forming an even-numbered extended rhombus array.

  In addition, the same molding as the central portion is sequentially repeated for the side surface of the outer steel dam plate and the bent groove portion after the bent groove portion having the even-numbered extended molding rhombus array formed in the central portion. In this way, even-numbered expansion-molded rhombus rows having a predetermined shape are formed on the bottom surface of each bent groove portion and the side surface of the steel dam plate.

  According to the fourth method of manufacturing a steel dam plate form according to the present invention, a thin steel plate having a predetermined width is cut into a predetermined length suitable for configuring the height of the steel dam plate, and a rhombus frame is formed in a predetermined length direction. The odd-numbered rhombus frame rows that are connected to the connecting portions of a predetermined width formed by separating the corners from each other and forming parallel corners on both sides of the rhombus frame portions adjacent to each other in the predetermined width direction. Punched leaving a gap that can be formed by bending the bent groove.

  Next, a thin steel plate punched out so that an odd number of rhombus frame rows centered on the center rhombus frame row is arranged in a predetermined width direction is sent to a bending device and connected to the center rhombus frame row The bent groove portions are made of thin steel plates by a group of bending rollers arranged at predetermined intervals so as to form a rhombus frame portion row on both sides joined via the portions on the bottom surface of the bent groove portion and the side surface of the steel dam plate. Fold it over the surface.

  Further, with respect to the folded groove portion at the center position, the protruding surfaces on both sides of the folded groove portion and the rhombus frame portion row other than the center are gripped by the upper and lower rollers, and the interval between the upper and lower rollers on both sides is gradually enlarged. Then, the rhombus frame row is expanded to form the center extended molding rhombus row, and then the central extended molding rhombus row is held by the upper and lower rollers, and the rhombus frame row other than the center is held by the upper and lower rollers. And the distance between the upper and lower rollers on both sides is further expanded, so that the rhombus frame rows on both sides are expanded to form odd-numbered expanded rhombus rows.

  In addition, after forming the odd-numbered expanded rhombus rows formed in the central portion, the same molding as the central portion is sequentially performed on the side surface of the outer steel dam plate and the bent groove portions. By repeating, an odd-numbered expansion-shaped rhombus row having a predetermined shape is formed on the bottom surface of each bent groove portion and the side surface of the steel dam plate.

  A fifth steel dam plate mold manufacturing method according to the present invention is the steel dam plate mold manufacturing method according to any one of the first to fourth embodiments, wherein a thin steel plate having a predetermined width is punched without being cut into a predetermined length. It is characterized by shifting to the following process, and the steel dam plate formwork is manufactured and placed efficiently and continuously by omitting the cutting process. The plate formwork is cut according to the requirements of the construction site and then supplied to the construction site.

  A sixth method for manufacturing a steel dam plate form according to the present invention is the method for manufacturing a steel dam plate form according to any one of the first to fourth aspects, wherein an extended rhombus row having a predetermined shape is connected to the bottom surface of each bent groove portion. The direction of the steel dam plate formed on the side surface of the steel dam plate is changed to the height direction of the steel dam plate mold and bent into a beam groove frame mold that forms the side and bottom surfaces of the steel dam plate mold. It is characterized by holding it with the necessary separator.

  A seventh method for manufacturing a steel dam plate form according to the present invention is the method for manufacturing a steel dam plate form according to the sixth aspect, wherein the ends of the steel dam plate bent into the beam groove frame type are mutually connected. And welded to a length suitable for constituting the side length of the steel barrier plate form.

  The steel dam plate formwork and the manufacturing method thereof according to the present invention are the weight of the steel dam plate formwork by forming an extended molded rhombus row formed by extending the bottom surface of the bent groove portion and the side surface of the steel dam plate. This makes it easy to handle and eliminates the need to select the direction when assembling the steel dam plate during the installation of the steel dam plate form. The work efficiency is improved by reducing the number of separators that retain the formwork shape while limiting the outflow of concrete from the steel weir board to a minimum. The effect which can aim at reduction of work cost is also produced.

  The first steel dam form according to the present invention is shown in the embodiment showing a part of the underground beam shown in FIG. 1 and the partial detailed view of the steel dam shown in FIG.

The steel dam plate formwork 1 arranged for constructing the underground beam includes a predetermined number of mold clamping separators 3 that are inserted into the expansion molded rhombus 7 with the front and rear steel dam plates 2 and 2 facing each other. Are held together. The steel dam plate 2 is provided with a bent groove portion 4 having a predetermined width extending in the height (beam formation) direction of the steel dam plate 2 at predetermined intervals along the transverse (beam) direction. 2 on the side surface 5.

An extended molded rhombus array composed of an extended molded rhombus 7 that also serves as a drain hole for concrete surplus water and a through hole for a mold clamping separator on the bottom surface 6 of the bent groove portion 4 and the side surface 5 of the steel dam plate 2. 8 is formed in the height direction of the steel barrier plate 2. As shown in the partial detail view of FIG. 2, the extended molded rhombus 7 constituting the three rows of extended molded rhombus rows 8 is parallel corners protruding from the expanded molded rhombus 7 in the transverse direction of the steel dam plate 2. 9 and 9 are connected to each other, and the separated corner portions 10 and 10 formed by projecting in the height direction of the steel dam plate 2 are separated from each other.

Accordingly, one or more expansion molded rhombus rows 8 arranged on the bottom surface 6 of the bent groove portion 4 and the side surface 5 of the steel dam plate 2 are used to discharge the excess concrete water and the through holes for the mold clamping separator. By forming the inner space 11 of the expansion molded rhombus 7 that also serves as the same, the space 12 between the expansion molded rhombus 7 and the space 13 between them, the weight of the steel dam 2 is reduced, and the installation of the steel dam 2 The direction is unlimited and the handling is facilitated, and the amount of spillage from the concrete steel dam plate 2 placed on the inner surface of the steel dam plate form 1 is limited to the minimum. This greatly enhances the beam construction effect.

  The second steel weir plate form according to the present invention is similar to the first steel weir plate form described above in many parts, but only the different parts are shown in FIG. It is shown in a partial detail view of the plate.

  The second steel dam plate formwork 14 has an expansion molded rhombus row 8 composed of the expansion molded rhombus 7 on the bottom surface 6 of the bent groove portion 4 and the side surface 5 of the steel dam plate 2. It is the same as the first steel dam plate form 1 in that it is formed in the direction, but is different in the shape in which the expansion molded rhombuses 7 and 7 are coupled in the transverse direction of the steel dam plate 2.

  The second steel dam plate formwork 14 is composed of three rows of extended molding rhombus rows 8, and the expanded molding rhombus 7 is changed from the expanded molding rhombus 7 to the steel weir as shown in the partial detailed view of FIG. The parallel corners 9 of the expansion molded rhombus 7 are not connected to each other but the corners 9, 9 projecting in the transverse direction of the plate 2 are connected to each other via a connecting part 15 formed in the height direction of the steel dam plate 2. 9 are separated from each other in the same manner as in the first steel dam plate formwork, and the separated corner portions 10 and 10 formed by protruding in the height direction of the steel dam plate 2 are molded. It is arranged.

  Accordingly, one or more expansion molded rhombus rows 8 arranged on the bottom surface 6 of the bent groove portion 4 and the side surface 5 of the steel dam plate 2 are connected in the height direction of the steel dam plate 2. Since they are connected to each other via the portion 15, the strength of the expanded rhombus row 8 is enhanced as compared with the first steel dam plate formwork. In addition to the many effects to be exhibited, the weight reduction amount of the steel dam plate 2 is reduced, but the construction effect of further reducing the amount of spillage of the placed concrete is exhibited.

  The third steel dam form according to the present invention is mostly the same as the first and second steel dam form mentioned above, so only the different parts are shown in FIGS. This will be described with reference to a partial detail view of the steel weir plate.

  In the first and second steel dam plate molds, three rows of expanded molded rhombus rows 8 made of expanded molded rhombus 7 are made of steel on the bottom surface 6 of the bent groove portion 4 and the side surface 5 of the steel dam plate 2. Parallel corners 9 and 9 formed in the height direction of the dam plate 2 and projecting from the expansion molded rhombus 7 in the transverse direction of the steel dam plate 2 are coupled to each other or via a connecting portion 15. Since the separated corner portions 10 and 10 formed by projecting in the height direction of the steel dam plate 2 are arranged apart from each other, the projecting corner portions 10 and 10 are Since the sharp corner 16 is open, it may be regarded as dangerous if it causes killing or damage to workers and other parts.

  Therefore, in the third steel dam plate form according to the present invention, the sharp corners 16 are eliminated by rounding and smoothing all the corners 16 of the corners 10 and 10 that are spaced apart. Thus, it is configured to avoid dangers such as killing and breakage during handling of the steel dam plate formwork.

  The method for manufacturing a steel dam plate form according to the present invention basically leads to various methods ranging from the first to the fourth, each having its own characteristics. The production of the steel dam plate form is the same in any case, but it starts with the steel material in which a roll wound at a predetermined length for every certain width is carried from the steelworks. Although not shown, the steel material for the steel dam plate formwork is cut into a predetermined length L suitable for forming the thin steel plate 17 at the height of the steel dam plates 2 and 14 described above from a roll having a predetermined width W. To start.

  In the present embodiment, a typical fourth method for manufacturing a steel dam plate formwork will be described with reference to each of the process diagrams of FIGS. 4 to 9, and the features of the first to third methods will be described. Will be described sequentially.

  As shown in FIG. 4, in this embodiment, the rhombus frame portion 18, which is a punched form before expansion of the expansion molded rhombus 7 formed by expanding in the direction of the predetermined width W, is mutually connected in the direction of the predetermined length L. It is punched away. As shown in the partial enlarged view, the rhombus frame portion 18 is formed while being adjacent to each other with the connecting portion 15 interposed in the direction of a predetermined width W, and includes a central enlarged portion 19 and corner portions 20 that are cut at both ends. And the three rhombus frame rows 22 which are odd examples are thinned while leaving the interval 23 which can be formed by folding the bent groove portions 4 and formed by parallel corner portions 21 and 21 on both sides of the coupling portion 15 and the coupled state. Punched in the width direction of the steel plate.

  In the next folding step, the thin steel plates 17 punched out so that the three rows of rhombus frame portions 18 are arranged in the direction of the predetermined width W are sent to a folding device (not shown). In the bending apparatus, since the bending roller groups are arranged at predetermined intervals, as shown in FIG. 5, the bending groove portions 4 are formed on the surface of the thin steel plate 2 so as to form three rows of rhombus frame portions 22. Folded out.

Although the process of forming the expansion molding rhombus row on the bottom surface of the next bent groove portion and the side surface of the steel dam plate will be described with reference to FIGS. In the case where the side surface of the steel weir plate is arranged, an extended molded rhombus row is formed on the side surface of the steel weir plate.
Therefore, when the bent groove is arranged at the center position of the steel dam plate, or when the extended molded rhombus row is formed on the side surface of the other steel dam plate or the bottom surface of the bent groove portion, the position of the drawing is changed. Thus, the same process as in this example can be performed or repeated to form sequentially.

  As shown in FIG. 6, when forming an extended rhombus array on the side surface 5-1, which is a typical example of a steel dam plate, the protruding surfaces 24 and 24 formed on both sides of the side surface 5-1 and Since the rhombus frame portions 18 and 18 on both sides are gripped from above and below by two rollers 25 and 26 that can be separated from each other, only the rhombus frame portions 18 located at the inner center of the three rows of rhombus frame portions 18 are released from pressing. The other bent groove portions 4, 4 are held up and down by the upper and lower rollers 27, 27. In the illustrated case, the bent grooves 4 and 4 located on both sides of the side surface 5-1 are not pressed by the upper and lower rollers 27 and 27. This is because it is held by the rollers 25 and 26, and if necessary, it can be arbitrarily pressed by the upper and lower rollers 27 and 27 like the other bent groove portions 4 and 4.

  FIG. 7 shows a case where only the central rhombus frame portion 18 of the three rows of rhombus frame portions 18 arranged in the direction of the predetermined width W is expanded to form an expanded molded rhombus row on the side surface 5-1. Yes.

  In this case, the distance between the upper and lower rollers 25, 26 on both sides is gradually enlarged so that the protruding surfaces 24, 24 of the side surface 5-1 gripped from above and below by the rollers 25, 26 on both sides are expanded to the left and right. The upper and lower rollers 27 and 27 of the bent groove portions 4 and 4 hold the bent groove portions while sliding the bent groove portions in the horizontal direction.

  Therefore, in this work, only the rhombus frame portion 18 at the center of the three rows of rhombus frame portions 18 is expanded, so that one row of expanded molded rhombus rows 8 is formed as shown in the plan view of the side surface 5-1. The formed rhombus rows on both sides are not expanded, and the state of the rhombus frame portion 18 is maintained.

  The state shown in FIG. 8 shows a process of changing the arrangement of the upper and lower rollers 25 and 26 in order to expand the expansion molded rhombus row existing on both sides of the central rhombus frame portion 18.

  In this step, the rollers 25 and 26 on both sides holding the side surface 5-1 to be molded from above and below are rearranged, and the upper and lower rollers 27 and 27 of the bent groove portions 4 and 4 are left as they are. It is.

  As shown in the drawing, the upper rollers 25 and 26 and the lower rollers 25 and 26 are separated from each other and pressed on the opposite side to the upper and lower rollers 25 pressing one of the projecting surfaces 24 and 24. Each of the upper and lower rollers 26 maintains the set position as it is, but the upper and lower rollers 25 on the opposite side of the one upper and lower rollers 26 are joined to each other to form the expanded molded rhombus row 8 formed in the center. Holding.

  In the state of FIG. 8, the upper and lower rollers 26 holding the opposite sides of the upper and lower rollers 25 holding one of the projecting surfaces 24, 24 are formed of the extended rhombus row 8 formed in the center. A system for expanding and molding the non-molded rhombus frame portions 18 on both sides is completed. By further enlarging the upper and lower rollers 25 and 26, the three rows of expanded molded rhombus rows 8 shown in FIG. It has moved to the completed state.

  As is apparent from the above process, in the present embodiment, when the side surface 5 of the steel dam plate is disposed at the center position of the steel dam plate 14, the extended rhombus row 8 is formed on the side surface 5 of the steel dam plate. Although it is formed, the same three rows of extended moldings are applied to the bent groove portion 4 that continues adjacent to the side surface 5-1 at the center position and the side surface 5 of the next steel weir plate that will be the subsequent process. Formation of the rhombus row 8 is also formed sequentially by repeating the operations described in the above steps.

  Further, unlike the above embodiment, even when the bent groove portion 4 of the steel dam plate is disposed at the center position of the completed steel dam plate 2, the three extended molded rhombus rows 8 are initially formed. The only difference is that it is applied to the bent groove portion 4 of the steel dam plate, and this is followed by the formation of the same three rows of expanded molded rhombus rows 8 on the side surface 5 of the steel dam plate. Each of the above steps is performed by the same repetitive operations in the positions and enlargement operations of the rollers arranged above and below, the movement of the steel weir plate, and the slice form between the rollers.

  The third steel dam plate form manufacturing method according to the present invention is different from the above-described embodiment only in that the expansion-molded rhombus row 8 is an even number, not three rows, and is shown in FIG. In the embodiment, the rhombus frame portion 18, which is a punched form before expansion of the expansion molded rhombus 7 formed by extending in the direction of the predetermined width W, is separated from each other in the direction of the predetermined length L. The parallel corner portions 21 and 21 on both sides of the 18 are connected to each other, and the even number of rhombus frame portions 22 starting from the second row are formed with the gap 23 formed by bending the bent groove portion 4. Punched in the width direction.

  Further, in the embodiment from FIG. 9 through the step of installing the rollers shown in FIG. 6, the protruding surfaces 24, 24 of the side surface 5-1 gripped from above and below by the rollers 25, 26 on both sides are left and right. The distance between the upper and lower rollers 25 and 26 on both sides is gradually enlarged so that the upper and lower rollers 27 and 27 of the bent groove portions 4 and 4 are pressed while sliding the bent groove portion in the horizontal direction. The even-numbered diamond-shaped frame portions 18 starting from the second row are equally expanded, and the state shown in FIG. 9 is reached in a state where each step of FIGS. 7 and 8 is omitted. In the plan view of 1, even-numbered expanded rhombus rows 8 starting from 2 rows are formed.

  And even if it is a case where the bending groove part 4 of a steel dam plate is arrange | positioned in the center position of the completed steel dam plate 2, it is steel dam that two rows of expansion molding rhombus row | line | columns 8 are formed initially. The only difference is that it is applied to the bent groove portion 4 of the plate, and in each step starting from forming the same two rows of expanded molded rhombus rows 8 on the side surface 5 of the steel weir plate next to this, the above-mentioned implementation is performed. It is performed by the same repetitive work as the above-mentioned form.

  In the first and second steel dam plate mold manufacturing methods according to the present invention, as in the above-described third and fourth steel dam plate mold manufacturing methods, the extended molded rhombus row 8 4 are different from each other only in that they are not directly connected to each other via the connecting portion 15, and therefore, in the embodiment shown in FIG. Parallel corner portions 21 and 21 on both sides of the rhombus frame portion 18 are directly coupled to each other while the rhombus frame portion 18 which is a punched form before expansion of the rhombus 7 is separated from each other in the direction of the predetermined length L. The even-numbered rhombus frame portion rows 22 starting from the second row or the odd-numbered diamond frame portion rows 22 starting from the third row are punched in the width direction of the thin steel sheet, leaving an interval 23 that can be formed by bending the bent groove portion 4.

  In the embodiment from the step of installing the roller shown in FIG. 6 to FIG. 9, in the embodiment of the first method for manufacturing the steel dam plate form according to the present invention, the rollers 25 on both sides, The distance between the upper and lower rollers 25, 26 on both sides is gradually increased so that the projecting surfaces 24, 24 of the side surface 5-1 gripped from the upper and lower sides by 26 are expanded to the left and right. 27 and 27 are pressed while sliding the bent groove portion in the horizontal direction as it is, so that the even-numbered rhombus frame portions 18 starting from the second row are equally expanded, and the steps of FIGS. 7 and 8 are omitted. 9 is reached, and the plan view of the side surface 5-1 shown in FIG. 9 is formed with even-numbered extended rhombus rows 8 starting from two rows directly coupled to each other. .

  However, in the second embodiment of the method for manufacturing the steel dam plate form according to the present invention, the protruding surfaces 24 and 24 of the side surface 5-1 gripped from above and below by the rollers 25 and 26 on both sides are set to the left and right. The distance between the upper and lower rollers 25 and 26 on both sides is gradually expanded so as to expand, and the upper and lower rollers 27 and 27 of the bent groove portions 4 and 4 are pressed while sliding the bent groove portions in the lateral direction as they are. 7 and 8, the odd-numbered center rhombus frame portion 18 is first expanded and then the rhombus frame portions 18 on both sides are expanded to reach the completed state shown in FIG. Unlike the form shown in the plan view of the side surface 5-1 in FIG. 9, odd-numbered extended molded rhombus rows 8 that are directly coupled to each other are formed.

  Even when the bent groove portion 4 of the steel dam plate is disposed at the center position of the completed steel dam plate 2, the even-shaped or odd-numbered expanded rhombus rows 8 starting from the second row are formed first. The only difference is that it is applied to the bent groove portion 4 of the steel dam plate, and each of these starts by forming the same two rows of expanded molded rhombus rows 8 on the side surface 5 of the steel dam plate. In the process, the same repetitive operation as in the above embodiment is performed.

  A fifth steel dam plate mold manufacturing method according to the present invention is the steel dam plate mold manufacturing method according to any one of the first to fourth embodiments, wherein a thin steel plate having a predetermined width is punched without being cut into a predetermined length. It shifts to the following processes, Comprising: A steel dam plate formwork is manufactured and set | placed efficiently and continuously by skipping a cutting process.

  Shipment of steel dam plate formwork is made according to the requirements of the construction site, and the completed steel dam plate formwork is cut and supplied to the construction site. It brings about a combined efficiency improvement that can respond accurately to the effects of shortening the time to construction and the requirements of the construction site.

  The steel dam plate formwork shown in each embodiment manufactured by the above-described first to fourth steel dam plate form manufacturing methods is made of steel such as an independent foundation, a beam including a small beam, and a column base. Since it can be widely adopted as a dam plate formwork, an embodiment thereof will be described.

  The independent foundation 30 shown in FIG. 10 is a usage method of a basic steel dam plate formwork. The manufactured steel barrier plate 2 is assembled with an upper angle or a runner and a lower angle attached, and a separator 31, a reinforcing bar anchor, a width stop material 32, etc. is installed and fixed at the lower side, and the upper is a width stop. It is fixed with a material 33 or a fired material. The angle member 34 arranged on the side surface of the steel dam plate 2 facilitates the handling of the steel dam plate 2 and ensures the attachment of the separator 31, and can be adapted to applications and other situations. Are appropriately adopted.

  FIG. 11 is an example of a beam mold showing an embodiment of a method for manufacturing sixth and seventh steel dam plate molds according to the present invention.

  In the present embodiment, in the steel dam plates 2 or 14 respectively manufactured by the first to fourth steel dam plate mold manufacturing methods, the extended rhombus row 8 having a predetermined shape is formed on the bottom surface of each bent groove portion 4. 6 and the steel dam plate beam which is formed on the side surface 5 of the steel dam plate is changed to the height direction of the steel dam plate beam form 35 to form a beam form as shown. It is formed by bending a side mold 36 and a bottom mold 37 of the mold 35, and the upper part is protected by a runner 38 and held by a separator 39 required for the beam mold.

  And, as an embodiment showing a seventh steel dam plate form manufacturing method according to the present invention, in the sixth steel dam plate form manufacturing method, a steel dam plate beam made into a beam form frame is used. When the steel dam plate 2 or 14 of the formwork 35 does not reach the predetermined beam length, the end portions of the steel dam plate are overlapped with each other by welding joint not particularly shown to have a predetermined side length. Is.

  In addition, as a joining means for making the predetermined side length, an appropriate joint plate can be adopted.

  The present invention relates to a steel dam plate formwork such as an independent foundation, a beam including a small beam, and a column base, and forms a rhombus framing portion formed by extending to the bottom surface of the bent groove portion and the side surface of the steel dam plate. This reduces the weight of the steel dam plate form and facilitates handling, and eliminates the need to select the direction when assembling the steel dam plate when installing the steel dam plate form. As well as simplifying the assembly of the formwork, the work efficiency is improved by reducing the number of separators that retain the formwork shape while limiting the outflow of concrete from the steel dam plate to a minimum. In addition, the present invention provides a steel dam plate formwork and a method for manufacturing the same that can reduce the work cost of the steel dam plate form work.

Part of underground beam made of steel dam plate formwork Partial enlarged view showing an expanded molded rhombus of a steel dam Partial enlarged view showing the expansion rhombus and connecting part of a steel weir plate Punching form before expansion of steel weir plate Form drawing of thin steel plate with bent groove part on the surface Process diagram for installing rollers on the folded steel sheet Process drawing of expanded molding rhombus by expanding the interval between installed rollers Roller installation process diagram that presses the expanded diamond shape to release the diamond frame on both sides Process diagram for expanding all the rhombus frame parts to expansion molding rhombus by expanding the interval between installed rollers Independent basic form figure with expanded rhombus steel dam Beam-injection formwork drawing with expanded molded rhombus steel dam

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Steel barrier plate form, 2 ... Steel barrier plate, 3 ... Separator, 4 ... Bending groove part, 5 ... Side surface, 6 ... Bottom face of bending groove part, 7 ... Expansion molding rhombus, 8 Expansion molding rhombus row | line | column, DESCRIPTION OF SYMBOLS 9 ... Parallel corner | angular part, 10 ... Separate corner | angular part, 11 ... Inner space, 12 ... Between each other, 13 ... Separation, 14 ... Steel dam, 15 ... Connection part, 16 ... Pointed corner, 17 ... Thin Steel plate, 18 ... rhombus frame portion, 19 ... enlarged portion, 20 ... cut corner portion, 21 ... parallel corner portion, 22 ... rhombus frame row, 23 ... spacing, 24 ... projecting surface, 25, 26, 27 ... Roller, 30 ... Independent foundation, 31 ... Separator, 32, 33 ... Width stop material, 34 ... Angle material, 35 ... Steel dam plate form, 36 ... Side form 37, Bottom form, 38 ... Runner, 39 ... Separator

Claims (10)

A bent groove portion of a predetermined width that is formed at an arbitrary interval along the transverse direction of the steel dam plate and extends in the height direction of the steel dam plate, a bottom surface of the bent groove portion, and a side surface of the steel dam plate, to bind the corner portion projecting transversely of the steel barrier plate, and protrudes in the height direction discharge hole and the type of the concrete excess water be arranged mutually moved away a corner portion formed by molding of a steel barrier plate An expanded molded rhombus row that also serves as a through hole for a frame clamping separator, and a steel dam plate constituted by arranging one or more extended molded rhombus rows on the bottom surface of the bent groove and the side surface of the steel dam plate Formwork.

A bent groove portion of a predetermined width that is formed at an arbitrary interval along the transverse direction of the steel dam plate and extends in the height direction of the steel dam plate, a bottom surface of the bent groove portion, and a side surface of the steel dam plate, The connecting portion of a predetermined width formed in the height direction of the steel dam plate, the bottom surface of the bent groove portion, the side surface of the steel dam plate, and the corner protruding in the transverse direction of the steel dam plate at the connecting portion The joints are combined, and the corners formed by projecting in the height direction of the steel weir plate are separated from each other and used as a drain hole for the excess concrete and a through hole for the mold clamping separator An expanded molded rhombus row and a steel dam plate form formed by arranging one or more extended molded rhombus rows on the bottom surface of the bent groove and the side surface of the steel dam plate.

The steel dam plate formwork according to claim 1 or 2, characterized in that the corners of the projecting corners arranged to be spaced apart from each other in the width direction of the formwork have a smooth shape. A thin steel plate having a predetermined width is cut into a predetermined length suitable for constituting the height of the steel dam plate, and the rhombus frame portions are separated from each other in the predetermined length direction and are formed adjacent to each other in the predetermined width direction. Punching an even number of rhombus frame portions in which the parallel corners on both sides of the rhombus frame portion are connected to each other, leaving a space that can be formed by bending a bent groove portion in the width direction of the thin steel sheet, and then punching the even diamond shape The thin steel plates punched out so that the frame portions are arranged in a predetermined width direction are sent to the bending device, and the even rhombus frame row is formed on the bottom surface of the bent groove portion and the side surface of the steel dam plate. Folding grooves are arranged on the surface of the thin steel plate by a group of bending rollers arranged at predetermined intervals, and the projecting surfaces on both sides of the bent groove are formed on the folded central groove. Grip with the upper and lower rollers and gradually increase the spacing between the upper and lower rollers on both sides The frame section row is expanded to form an even-numbered expansion-shaped rhombus row, and in addition to the folded groove portion having the even-numbered expansion-molded rhombus row formed in the center, and the side surface of the outer steel dam plate To the bent groove portions, the same molding as the central portion is sequentially repeated to form an even number of predetermined shaped expanded rhombus rows on the bottom surface of each bent groove portion and the side surface of the steel dam plate. The manufacturing method of the steel dam plate form of description. A thin steel plate having a predetermined width is cut into a predetermined length suitable for constituting the height of the steel dam plate, and the rhombus frame portions are separated from each other in the predetermined length direction and adjacent to each other in the predetermined width direction. An odd number of rhombus frame rows in which parallel corners on both sides of the portion are connected to each other are punched out with an interval that can be formed by bending a bent groove portion in the width direction of the thin steel plate, and then the odd rhombus frame portions are The thin steel plates punched out so as to be arranged in a predetermined width direction are sent to the bending device, and the odd-numbered rhombus frame rows are formed on the bottom surface of the bent groove portion and the side surface of the steel dam plate. Folding grooves are folded on the surface of the thin steel plate by a group of folding rollers arranged at intervals, and the protruding grooves on both sides of the bent groove are not centered with respect to the folded groove at the center position. Grab the diamond frame with the upper and lower rollers and gradually increase the distance between the upper and lower rollers on both sides. The center rhombus frame row is expanded to form the center extended molding rhombus row, and then the center extended rhombus row is held by the upper and lower rollers and the rhombus frame row other than the center is held by the upper and lower rollers. And then expanding the distance between the upper and lower rollers on both sides to expand the rhombus frame portion row on both sides to form an odd-numbered extended rhombus row, Next to the folded groove part with the extended molded rhombus row, the odd-shaped extended molded rhombus row having an odd number of predetermined shapes is sequentially repeated on the side surface of the outer steel weir plate and the bent groove portion in the same manner as the central portion. The manufacturing method of the steel dam plate formwork of Claim 1 which shape | molds in the bottom face of each bending groove part, and the side surface of a steel dam plate. A thin steel plate having a predetermined width is cut into a predetermined length suitable for constituting the height of the steel dam, and the rhombus frame portions are separated from each other in the predetermined length direction, and parallel corners on both sides of the rhombus frame portion. Punching an even number of rhombus frame rows that are connected to a connecting portion of a predetermined width formed adjacent to a predetermined width direction, leaving an interval that can be formed by bending a bent groove portion in the width direction of the thin steel plate, The sheet steel punched out so that the even-numbered rhombus frame portions centered on the central connecting portion are arranged in a predetermined width direction is sent to the bending device, and the even number on both sides coupled to the central connecting portion is sent. Folding grooves are folded on the surface of the thin steel plate by a group of folding rollers arranged at predetermined intervals so as to form a rhombus frame portion row on the bottom surface of the folding groove portion and the side surface of the steel dam plate, and further folding The upper and lower rollers are provided with protruding surfaces on both sides of the bent groove portion with respect to the bent groove portion at the center position. Gripping and gradually expanding the distance between the upper and lower rollers on both sides to expand the rhombus frame portion row to form an even-numbered extended rhombus row, and in addition, the centered even-numbered extended rhombus row Next to the folded groove portion provided, the side of the outer steel dam plate and the folded groove portion are sequentially formed in the same manner as the central portion, so that an even number of predetermined shaped expanded rhombus rows can be formed in each folded groove portion. The manufacturing method of the steel slat form frame of Claim 2 shape | molded in a bottom face and the side surface of a steel dam board. A thin steel plate having a predetermined width is cut into a predetermined length suitable for constituting the height of the steel dam, and the rhombus frame portions are separated from each other in the predetermined length direction, and parallel corners on both sides of the rhombus frame portion. Punching out an odd number of rhombus frame parts connected to a connecting part of a predetermined width formed adjacent to the part in a predetermined width direction, leaving an interval that can be formed by bending the bent groove part in the width direction of the thin steel plate, A thin steel plate punched out so that an odd number of rhombus frame rows centered on the center rhombus frame row is arranged in a predetermined width direction is sent to a bending device, and a connecting portion is connected to the center rhombus frame row. The bent groove portions are formed on the surface of the thin steel plate by a group of bending rollers arranged at predetermined intervals so as to form rhombus frame portions on both sides joined to each other on the bottom surface of the bent groove portion and the side surface of the steel weir plate. Furthermore, the folded groove portions on both sides of the folded groove portion at the center position Grab the diamond frame part row other than the exit surface and the center with the upper and lower rollers, and expand the rhombus frame part row by gradually expanding the distance between the upper and lower rollers on both sides to form the center expanded molded diamond row, The center rhombus rhombus row is gripped by the upper and lower rollers, and the rhombus frame rows other than the center are released from the grip of the upper and lower rollers, and the distance between the upper and lower rollers on both sides is further expanded, thereby the rhombus frame rows on both sides To form an odd-numbered expansion-shaped rhombus row, and in addition to the bent groove portion having the odd-numbered expansion-shaped rhombus row formed in the center, the side surface of the outer steel dam plate and the bending groove portion 3 is formed on the bottom surface of each bent groove portion and the side surface of the steel dam plate by sequentially repeating the same molding as the center portion. Manufacturing method of steel dam plate formwork. The method for producing a steel dam plate form according to any one of claims 4 to 7, wherein a thin steel plate having a predetermined width is transferred to the following steps without being cut into a predetermined length. The steel dam plate mold is formed by changing the direction of the steel dam plate formed by extending the rhombus row of the predetermined shape on the bottom surface of each bent groove and the side surface of the steel dam plate to the height direction of the steel dam plate formwork. The method for manufacturing a steel dam plate mold according to any one of claims 4 to 7, characterized in that it is folded into a beam groove frame mold that forms a side mold frame and a bottom mold frame and is held by a necessary separator. 10. The ends of steel barrier plates bent into beam groove frame molds are overlapped with each other and welded to a length suitable for constituting the side length of the steel barrier plate mold frames. The manufacturing method of the steel dam plate form described in 2.

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