JP4152260B2 - Formwork method and material plate - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention provides a method for rationally constructing a formwork to be installed in correspondence with these foundations when constructing intersecting two-way foundations, and an advantageous L for use in carrying out this method. This relates to the character plate and the accessory plate.
[0002]
[Prior art]
  For example, when building a house, it is common to construct a foundation corresponding to a previously designed foundation plan. When building a foundation, reinforcing bars are arranged according to the foundation plan, and formwork is installed on both sides of the reinforcing bars, and concrete is placed by placing anchor bolts. After leveling, compacting and curing, the formwork is removed and the desired foundation is built.
[0003]
  When installing a formwork, it is necessary for the formwork arranged opposite to hold the parallel spacing accurately. For this reason, an anchor bolt arrangement ruler having a predetermined length is arranged across a plurality of molds, and the ruler and the molds are fixed to each other so as to maintain a parallel interval and install the molds. Is generally (see, for example, Patent Document 1). The anchor bolt placement ruler is provided with a concrete empty space and a support hole for anchor bolt support. Therefore, by inserting an anchor bolt into the support hole and putting concrete from a concrete filling space, and inserting a bar vibrator using the concrete filling space and leveling, an accurate width can be obtained. A foundation having dimensions can be constructed, and anchor bolts can be arranged at predetermined positions.
[0004]
  In addition, at a portion where the foundations in two directions intersect at right angles (L-shaped intersection, T-shaped intersection, cross-shaped intersection, etc.), it is necessary to form the intersection while maintaining a right angle. is there. For example, in the case of configuring an L-shaped intersection, jigs configured in the same manner as the above-mentioned rulers are arranged on the upper part of the molds arranged corresponding to the foundations in two directions, and the ends of these jigs are arranged. Overlap at the intersection and fix each jig to the formwork. At this time, a squareness can be secured for the mold in two directions by constraining the stacked jigs to each other and fixing them to the mold at the intersection (see, for example, Patent Document 2). Similarly, in the T-shaped intersection and the cross-shaped intersection, a squareness is secured by superimposing jigs arranged corresponding to the molds in two directions at the intersection and fixing them to the mold. Is possible.
[0005]
  Each technique of the above-mentioned patent documents 1 and 2 is extremely advantageous in order to secure the street while maintaining the interval between the molds arranged to face each other and to ensure the perpendicularity of the intersection. However, because it is intended to construct the foundation of a wooden house, the anchor bolt will have the function of fixing the foundation to the foundation, so that the anchor bolt can be arranged in a line along the foundation for the ruler and jig. It is configured. In the case of a wooden house, since the pillars arranged at the intersection of the foundation are fixed to the base, it becomes an obstacle when anchor bolts are arranged at the intersection. For this reason, an anchor bolt is not arrange | positioned at the cross | intersection part of a foundation.
[0006]
  On the other hand, when constructing the foundation of a steel frame house, the pillars arranged at the intersection of the foundations are fixed by anchor bolts, so that a plurality of (four) anchor bolts can be supported at positions corresponding to the pillars. It is necessary to form support holes. For this reason, as shown in FIG. 12, a jig plate 51 is provided with a support piece 51a having a plurality (four) of support holes 51b formed at the end, and a concrete insertion hole 51c is formed continuously with the support piece 51a. Is configured. The hole 51d formed between the end of the jig plate 51 and the support piece 51a confirms the state of the poured concrete without inserting concrete, or inserts a bar vibrator. Used when. When this jig plate 51 is used for the crossing portion 52 of the two-way foundation, the end portions of the jig plate 51 arranged corresponding to the two-way formwork are overlapped at the crossing portion 52, and each jig plate 51 is overlapped. A rod-shaped vibrator is inserted through a hole 51d in which the support piece 51a provided on 51 overlaps to reduce the opening area.
[0007]
[Patent Document 1]
  No. 6-45000
[Patent Document 2]
  JP 2000-248747 A
[0008]
[Problems to be solved by the invention]
  As described above, the ends of the jig plates corresponding to the molds in the two directions are overlapped at the intersecting portions, and the support pieces provided on the respective jig plates are overlapped to substantially close the upper surface of the intersecting portions. Thus, the following problems have occurred.
[0009]
  That is, when the jig plates are placed and fixed on the two-way molds, the jig plates placed on the upper side are forced to bend because the jig plates are overlapped at the intersection. . For this reason, the workability is impaired when the machine is squeezed for the purpose of alignment, and when the stacked jig plate is fixed to the mold frame, the jig plate arranged on the upper side is bent. There is a problem that strong power is required.
[0010]
  In particular, since the anchor bolts arranged at the intersections are required to have high positional accuracy and upright accuracy, the diameter and positional accuracy of the support holes formed in the support pieces of the jig plate are held in a high state. The jig plate is a steel plate with a thickness of about 4.5 mm and has a relatively large bending rigidity. Therefore, when two jig plates are stacked at the intersection, the upper jig plate and the lower jig are overlapped. The tool plate is not in close contact, and the upper jig plate is inclined so as to jump up, so that the centers of the support holes in the overlapped support pieces do not exactly coincide. Therefore, when the anchor bolt is inserted into the overlapped support hole, there arises a problem that the anchor bolt falls without standing upright.
[0011]
  In addition, the anchor bolts arranged at the intersections and the anchor bolts arranged at the straight part of the foundation need to secure a protruding length from the top of the foundation, so they are attached to the jig plate using nuts. At the same time, the protruding length from the jig plate is set. It is sufficient to use one nut to set the anchor bolt protrusion length. However, when the concrete thrown into the intersection is vibrated by a bar-shaped vibrator, this vibration causes the concrete to flow low. Since the anchor bolt is inclined due to this flow, it is necessary to fix the anchor bolt by sandwiching two superimposed jig plates with two nuts. At this time, the nut on the back surface side of the jig plate is held by hand and the nut on the upper surface side is tightened. However, the upper surface of the intersection is substantially closed, so the nut on the back surface side is held by hand. There is a problem that it is difficult.
[0012]
  Also, there are a mixture of anchor bolts that are arranged through two jig plates at the intersection and those that are arranged through one jig plate at the straight part. Therefore, even if it is attempted to visually confirm that the heights of the anchor bolts are the same, the lengths of the bolts protruding from the surface of the jig plate will vary, making visual confirmation difficult. There is also a problem.
[0013]
  In addition, since the upper surface of the intersection is substantially blocked, the concrete is thrown from the concrete throwing hole adjacent to the support piece. For this reason, it is difficult to confirm whether or not the concrete is not properly injected into the part surrounded by the plurality of anchor bolts or the part opposite to the concrete injection hole, and it is difficult to check whether or not the part is sufficiently charged. There is a problem that the concrete is not smoothly filled.
[0014]
  In addition, although a bar vibrator can be inserted from above the intersection, it can only be inserted as a point, and the intersection will be inserted obliquely from the concrete injection hole adjacent to the intersection. There is a problem that it is difficult to smoothly perform the work of leveling and compacting the concrete thrown into the section.
[0015]
  It is an object of the present invention to improve workability when an anchor bolt is erected when securing the formwork or orthogonality, and to facilitate concrete charging work and concrete compaction at the intersection. In addition, an object of the present invention is to provide a method for constructing a form so that the concrete put together can be confirmed, and an advantageous L-shaped plate and an accessory plate for use in carrying out this method.
[0016]
[Means for Solving the Problems]
  In order to solve the above problems, a method for constructing a formwork according to the present invention is to install a formwork corresponding to a crossing two-way foundation and to have a preset width dimension at the top of each formwork. This is a method of constructing a form to attach the anchor bolt fixing plate and set the width and street of the form, and at the intersection where the two-way foundations intersect, the upper part of the form placed in one direction The anchor bolt fixing plate is disposed on the anchor bolt fixing plate, the anchor bolt fixing plate is made to reach the upper part of the intersection, and the anchor bolt fixing plate is disposed on the upper part of the mold frame installed in the other direction. Plate ends at intersectionsTo the extent that it does not overlap with the anchor bolt fixing plate placed at the top of the formwork placed in one directionFurther, an L-shaped plate formed in an L-shape is arranged on the projecting corner side and / or the upper corner side of the mold forming the intersection, and the L-shaped plate and the anchor bolt fixing plate And the formwork are connected to each other.
[0017]
  Here, as the intersection where the two-way foundation intersects, there are an L-shaped intersection where the two-way foundation intersects the L-type, a T-shaped intersection which intersects the T-type, and a cross-shaped intersection which intersects the cross. The anchor bolt fixing plate that has reached the upper part of these intersections is the state where the end of the anchor bolt fixing plate arranged in the mold installed in one direction has reached in the case of the L-shaped intersection In the T-shaped intersection and the cross-shaped intersection, one of the support pieces at the center of the anchor bolt fixing plate arranged in the mold installed in one direction reaches and the anchor bolt fixing plate is It shall mean the state of passing through the intersection.
[0018]
  In the above construction method of the formwork, the anchor bolt fixing plate placed at the top of the formwork installed in one direction of the intersection where the two-way foundation intersects is made to reach the top of the intersection and installed in the other direction The end of the anchor bolt fixing plate placed on the upper part of the formed mold is brought close to the intersection, and the L-shaped plate is arranged on the upper part of the entrance corner side and the exit corner side of the mold part constituting the intersection part, respectively. By connecting the L-shaped plate, anchor bolt fixing plate, and formwork to each other, only one anchor bolt fixing plate is placed at the top of the intersection, ensuring the formwork in each direction. It is possible to ensure the squareness of the molds in the two directions constituting the intersection.
[0019]
  In other words, by connecting anchor bolt fixing plates arranged at the upper part of the molds installed in each direction, it is possible to keep the interval between the molds arranged opposite to each other at a constant size. The street can be secured. In addition, by connecting the L-shaped plate located at the upper part of the protruding corner side and the entering corner side at the intersection to the formwork via the anchor bolt fixing plate, the perpendicularity of the protruding corner part and the entering corner part can be obtained. Can be secured.
[0020]
  Accordingly, it is possible to secure a squareness at the intersection and the street of the mold without overlapping the anchor bolt fixing plates arranged in the respective directions above the intersection of the two-direction foundation.
[0021]
  Also in the present inventionUseThe L-shaped plate has two pieces arranged at right angles in an L-shape, and is a mold for a corner or a corner mold installed corresponding to a bi-directional foundation intersecting these pieces. Holes are provided so as to match a plurality of holes for fixing anchor bolt fixing plates formed on the upper surface of the frame.
[0022]
  L-shaped plateBy using the L-shaped plateTwo pieces arranged at right angles are placed on the entrance corner side and the exit corner side of the mold forming the intersection, and the anchor bolt fixing plate is fixed to the mold through the holes formed in each piece. Thus, the squareness can be ensured by correcting the direction of the mold with these two pieces.
[0023]
  Furthermore, the accessory plate according to the present invention is a jig for setting the formwork in correspondence with the intersecting two-way foundation and setting the width and street of the formwork by attaching to the upper part of the intersection of the foundation, One or two diagonal pieces diagonally connecting the four vertices at the intersection;One or twoA plate-like piece extending from the end of the diagonal piece in the direction of the foundation and setting the width and street of the formwork, andOne or twoIn place on the diagonal pieceProvide a hole and surround the holeHold anchor boltFourA through hole is provided.
[0024]
  In the above-mentioned accessory plate, a through-hole capable of holding an anchor bolt is formed at the top of the intersection where the two-way foundations intersect.One or twoBy arranging diagonal pieces and placing plate-like pieces extended from the diagonal pieces on the upper part of the formwork, and connecting the plate-like pieces to the formwork, the distance between the oppositely placed formwork Can be maintained at a constant size, and the street can be secured, and the squareness of the formwork at the intersection can be secured.
[0025]
  In particular, connect the top of the intersection to the top of the intersection.One or twoSince the diagonal piece is arranged, the upper part is opened at the intersection other than the part corresponding to the diagonal piece. For this reason, concrete can be thrown in and compacted using an open part, or a rod-shaped vibrator can be inserted.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, preferred embodiments of a method for constructing a form, an L-shaped plate, and an accessory plate according to the present invention will be described. The formwork construction method of the present invention is a series of concrete placing operations (hereinafter referred to as “concrete operations”) including an operation of putting concrete at an intersection where two-way foundations intersect, an operation of compacting the injected concrete, and an operation of leveling. (It is simply called “concrete placing work”), the formwork in each direction is secured, the perpendicularity of the intersection is secured, and the anchor bolt is upright and protruding. The length can be easily confirmed.
[0027]
  That is, the anchor bolt fixing plate disposed on the upper part of the mold corresponding to the foundation in one direction is made to reach the upper part of the intersection in the upper part of the intersection in the foundation, and the mold corresponding to the foundation in the other direction. By placing the end of the anchor bolt fixing plate arranged at the upper part close to the intersection, the two anchor bolt fixing plates are arranged without overlapping at the intersection. Work to fix the anchor bolt by sandwiching the support piece of the anchor bolt fixing plate between the two nuts, preventing concrete blockage caused by overlapping the anchor bolt fixing plates, placing concrete on the intersection, placing It is possible to easily perform the work of confirming the concrete that has been placed from the side of the support piece.
[0028]
  As described above, the anchor bolt fixing plates arranged corresponding to the molds in the two directions are not overlapped at the intersection. Therefore, by connecting the anchor bolt fixing plates and the mold frames in the respective directions, Although it is possible to ensure the linearity of the placed formwork, it is impossible to secure the street and the squareness including the intersecting part. For this reason, it is possible to secure the squareness of the formwork by arranging L-shaped plates formed in an L shape on the entrance corner side and the exit corner side of the formwork constituting the intersection and connecting them together. Is possible. Accordingly, the anchor bolt fixing plate and the L-shaped plate can ensure a squareness as it is even in a formwork including an intersection.
[0029]
  For this reason, it becomes possible to eliminate the inconvenience caused by the overlapping of the anchor bolt fixing plates arranged corresponding to the two-way molds at the intersection, and to realize a rational construction.
[0030]
  As an anchor bolt fixing plate, what is conventionally used when constructing the foundation of a steel frame house can be used. This anchor bolt fixing plate is made of a steel plate with a thickness of 4.5mm, with the width dimension corresponding to the width of the target foundation and the width of the upper flange of the formwork, and the length is modular Multiple types are prepared according to the dimensions.
[0031]
  In the anchor bolt fixing plate, the rectangular support piece for supporting the anchor bolt has a plurality of support holes for supporting the anchor bolt, and the support piece usually has a pitch equal to the module size. And arranged transversely in the width direction. Accordingly, a hole having a large size is formed between the support pieces, and it is possible to insert concrete or insert a rod-shaped vibrator using this hole.
[0032]
  It is preferable that a hole having an appropriate diameter is formed in the center of the support piece provided at one end of the anchor bolt fixing plate in which support holes for supporting a plurality of anchor bolts are arranged. This hole is located at the crossing of the concrete when the support piece is positioned at the top of the crossing by placing the end of the anchor bolt fixing plate on the crossing of the foundation. Check the loading state at the part, check the loading state of the concrete for the part surrounded by the anchor bolts fixed to the support piece, or use the bar vibrator for the part surrounded by the anchor bolt By using it when performing the operation of inserting, it is possible to improve the workability and secure the amount of concrete input to the intersecting portion to realize a certain leveling.
[0033]
  In the formwork construction method of the present invention, the anchor bolt fixing plates placed on the formwork installed in two directions are not overlapped at the intersection. For this reason, although it is possible to secure the streets in each direction, the molds in the direction in which the ends of the anchor bolt fixing plates are arranged near the intersections and connected to the molds intersect. It becomes difficult to ensure a squareness with respect to the direction formwork. Therefore, by placing and connecting the L-shaped plate to the mold forming the intersection, it is possible to ensure the squareness of the mold in two directions by the L-shaped plate.
[0034]
  The L-shaped plate is arranged at the entrance corner portion and the exit corner portion of the mold forming the intersection, and the inner corner mold frame and the outer corner mold frame corresponding to these portions are provided on these corner mold frames. It has the function of connecting panel-shaped molds arranged in series while maintaining a right angle to each other.
[0035]
  For this reason, what is necessary is just to be able to exhibit the said function as an L-shaped plate, and does not limit a material, a structure, or a dimension. However, since it is not preferable that the L-shaped plate is closed above the intersection, the width dimension of the two pieces constituting the L-shaped plate is preferably substantially equal to the width dimension of the upper flange of the mold. In addition, the length of each piece is such that both the L-shaped plate for the entrance corner and the L-shape plate for the exit corner are arranged in the vicinity of the intersection when the corners are arranged at the entrance corner and the exit corner in the mold. It is necessary to have a length for the anchor bolt fixing plate.
[0036]
  Therefore, when the L-shaped plate is disposed at the entrance corner portion and the exit corner portion at the intersection, the L-shaped plate piece is a corner mold frame and a panel-shaped mold in which the corner mold frame is continuous in two directions. By connecting the frames to each other, it is possible to linearly connect the corner mold frame and the panel-shaped mold frame to maintain the right angle of the corner mold frame.
[0037]
  Further, the accessory plate according to the present invention is formed in a shape corresponding to the planar shape of the intersecting portion, that is, whether the intersecting portion is L-shaped, T-shaped, or cross-shaped. The shape of the portion facing the intersection is formed with one or two diagonal pieces connecting each vertex of the intersection diagonally, and through holes for holding anchor bolts are provided in the diagonal pieces. It is a thing.
[0038]
  In the above-mentioned accessory plate, diagonal pieces are arranged so as to face the intersecting portions, and plate-like pieces extending from the diagonal pieces are placed on the two-way molds constituting the intersecting portions and connected to each other. Thus, it is possible to ensure the streets of the molds installed corresponding to the foundations in the respective directions and to ensure the perpendicularity of the intersecting portions without overlapping at the intersecting portions.
[0039]
  In the straight part of the foundation, the end of the plate-like piece of the accessory plate is arranged close to the end of the plate for fixing the anchor bolt corresponding to the module dimensions without overlapping, and the plate-like piece A straight plate is placed across the side of the straight anchor bolt fixing plate, and the straight plate, plate-like piece, mold frame, straight plate, straight anchor bolt fixing plate, and mold frame are connected. It is preferable to do. Further, in the straight portion of the foundation, it is preferable that the straight anchor bolt fixing plates are arranged close to each other (without overlapping), and the straight anchor bolt fixing plates are connected by the straight plate. By setting it as such a structure, it is possible to ensure the straight line part of a foundation.
[0040]
  In particular, since the part corresponding to the intersection is formed by a diagonal piece connecting the vertexes of the intersection with a diagonal line, a hole is formed adjacent to the diagonal piece. It is possible to perform a series of concrete placing work including the insertion of the rod and the insertion of the bar vibrator.
[0041]
  When such an accessory plate is used, the number of parts required for constructing the foundation is increased, but the workability of concrete placement is improved and the street including the intersection is secured, and the intersection It is advantageous to ensure the perpendicularity of the.
[0042]
  Hereinafter, the Example of the construction method of the formwork which concerns on this invention, and the Example of an L-shaped plate and an accessory plate are described using figures. FIG. 1 is a diagram showing a construction example for a corner portion of a foundation. FIG. 2 is a diagram for explaining an example of installation of a formwork. FIG. 3 is a diagram for explaining an arrangement example of the molds constituting the corners. FIG. 4 is a diagram illustrating an example of an L-shaped plate. FIG. 5 is a diagram showing an example of construction for a basic cross-shaped intersection. FIG. 6 is a diagram for explaining an example of a straight accessory plate. FIG. 7 is a diagram illustrating an example of an L-shaped accessory plate. FIG. 8 is a diagram for explaining another example of the L-shaped accessory plate. FIG. 9 is a diagram for explaining an example of a T-shaped accessory plate. FIG. 10 is a diagram illustrating an example of a cross-shaped accessory plate. FIG. 11 is a diagram for explaining a construction example for a cross-shaped intersection using a T-shaped accessory plate and an L-shaped plate.
[0043]
  First, an installation example of a mold when constructing a crossing two-way foundation will be briefly described with reference to FIGS. As shown in the figure, a panel formwork 1, an inner corner formwork 2, and an outer corner formwork 3 are installed in accordance with a basic plan designed in advance for a target building. An L-shaped intersection A and a T-shaped intersection B where the two-way foundations intersect are formed.
[0044]
  There are several types of panel formwork 1 with lengths corresponding to preset module dimensions, and one selected from these is installed continuously for the desired foundation. As a result, a straight line portion is formed. Further, at the L-shaped intersection A and the T-shaped intersection B, the inner corner mold 2 is arranged on the entrance corner side, and the outer corner mold 3 is arranged on the exit corner side, and is connected to the panel mold 1 constituting the straight line portion. Has been. Each form 1-3 is comprised with the steel flange and the steel plate, and the some hole 1a-3a is formed in each flange by the predetermined pitch.
[0045]
  Although the inner corner mold 2 and the outer corner mold 3 are both molds arranged at the corner portions, they have different dimensions. That is, when the length of the inner corner mold 2 is arranged on the corner of each corner A, B, the end has a value that is a module dimension from the center of the foundation, and the outer corner mold 2 The length of 3 has a value in which the end portion corresponds to the center of the foundation when arranged on the protruding corner side.
[0046]
  Next, the configuration of the L-shaped plate will be described with reference to FIG. FIG. 5A shows an inner L-shaped plate 5 used corresponding to the inner corner mold 2 arranged on the entrance corner side, and FIG. 5B shows the outer corner mold 3 arranged on the exit corner side. The outer L-shaped plate 6 used corresponding to the above is shown, and FIG. 10C shows the dual-purpose L-shaped plate 7 used in common on the entrance corner side and the exit corner side.
[0047]
  Each L-shaped plate 5, 6 has two pieces 5 a, 6 a that intersect at right angles, and a plurality of (for example, three in this embodiment) holes 5 b-5 d, 6 b in each piece 5 a, 6 a. To 6d are formed. The lengths of the pieces 5a and 6a and the pitches of the holes 5b to 5d and 6b to 6d are the holes 2a and 3a formed on the upper flanges of the corresponding inner corner mold 2 and outer corner mold 3, respectively. The dimensions corresponding to the pitch of the holes 1a formed in the upper flange of the panel mold 1 connected to these molds 2 and 3
ing.
[0048]
  In this embodiment, the piece 5a in the inner L-shaped plate 5 has a length of 300 mm, and the distance between the hole 5b and the hole 5c is 158.5 mm, and the distance between the hole 5c and the hole 5d is 90 mm. It is. The piece 6a in the outer L-shaped plate 6 has a length of 428 mm, the distance between the hole 6b and the hole 6c is 146.5 mm, and the distance between the hole 6c and the hole 6d is 215 mm. That is, the distance between the hole 5b and the hole 5c and the distance between the hole 6b and the hole 6c are different from each other by 12 mm.
[0049]
  As described above, when forming the L-shaped intersection A, the corresponding L-shaped plates 5 and 6 are arranged on the entrance corner side and the exit corner side to connect the inner corner mold frame 2 and the outer corner mold frame 3. Is possible. However, it is possible to reduce the number of parts by using one kind of L-shaped plate.
[0050]
  For this reason, the dual-purpose L-shaped plate 7 has two pieces 7a intersecting at right angles to each other and having a length of 428 mm, and holes 7b to 7d and a long hole 7e are formed in each piece 7a. The hole 7b corresponds to the holes 5b and 6b in the L-shaped plates 5 and 6, the hole 7c corresponds to the hole 5d of the inner L-shaped plate 5, and the hole 7d corresponds to the hole 6d of the outer L-shaped plate 6. ing. The long holes 7e correspond to the holes 5c and 6c in the L-shaped plates 5 and 6, respectively. For this reason, the long hole 7e has a longitudinal center set at a position 152.5 mm from the hole 7b and a total length set at 22 mm.
[0051]
  The dual-purpose L-shaped plate 7 configured as described above can be used in common on the entrance corner side and the exit corner side at the L-shaped intersection A, the T-shaped intersection B, and the cross-shaped intersection (not shown). is there. For this reason, it is possible to reduce the number of parts required when constructing a formwork.
[0052]
  Next, the construction method of a formwork is demonstrated with reference to FIG. The construction method shown in the figure is for the L-shaped intersection A, and uses two anchor bolt fixing plates 4 so that the end of one anchor bolt fixing plate 4 reaches the L-shaped intersection A and the other. The end of the anchor bolt fixing plate 4 is in the vicinity of the L-shaped intersection A, and the inner L-shaped plate 5 is formed on the entrance corner side of the L-shaped intersection A, and the outer L-shaped plate 6 is disposed on the exit corner side. By connecting the corner molds 2 and 3 and the panel molds 1 corresponding to each other, the streets of the molds in each direction can be secured and the perpendicularity at the L-shaped intersection A can be secured. It is a thing.
[0053]
  The anchor bolt fixing plate 4 shown in the figure, when constructing the foundation of a steel frame house, connects the formwork installed with respect to the foundation in each direction to maintain a space and secure a street. It is comprised so that the four anchor bolts which attach a steel frame column to a position can be supported.
[0054]
  That is, the main body plate 4a constituting the anchor bolt fixing plate 4 is provided with a rectangular plate-like support piece 4b across the foundation in the width direction at a position corresponding to the module dimension. Four support holes 4c that support the anchor bolts are arranged in a square shape. In particular, a hole 4d into which a rod-shaped vibrator (not shown) can be inserted is formed at a position surrounded by the support hole 4c in the support piece 4b provided on the end side of the main body plate 4a, and the hole 4d is used. Thus, it is possible to check the state of concrete input and the leveling condition of concrete.
[0055]
  The anchor bolt fixing plate 4 is formed with a charging hole 4e for charging concrete. The position and size of the insertion hole 4e are not particularly limited, but are preferably formed adjacent to the support piece 4b. For this reason, the support hole 4c having a diameter through which the anchor bolt can be inserted is sufficiently opened to open the periphery of the support piece 4b having a size that can be arranged in accordance with the arrangement of the mounting holes of the pillars, and the concrete is poured. An insertion hole 4e is formed by a wide hole.
[0056]
  Further, on the outer periphery of the main body plate 4a, a notch 4f is formed at a position serving as the center in the width direction, a position serving as the center of the foundation, and a position corresponding to the module dimension with reference to the position. Furthermore, a plurality of holes 4g are formed along the outer edge of the main body plate 4a at positions facing the holes 1a to 3a formed in the flanges of the molds 1 to 3.
[0057]
  Incidentally, 4h is a hole formed between the support piece 4b and the end piece 4i provided on the end side of the anchor bolt fixing plate 4, and this hole 4h is large enough to contribute to the loading of concrete. However, it is possible to check whether the concrete that has been thrown in is sufficiently filled at the end of the foundation.
[0058]
  In the L-shaped intersection A, each of the molds 1 to 3 constituting the L-shaped intersection A in a state where the end of the anchor bolt fixing plate 4 (4A) arranged along the foundation in one direction has reached. It is mounted on the flange. The anchor bolt fixing plate 4 (4B) arranged along the foundation in the other direction is provided at the center of the anchor bolt fixing plate 4A in the width direction, with the end portion being close to the anchor bolt fixing plate 4A. The notch 4f and the notch 4f provided corresponding to the hole 4d of the anchor bolt fixing plate 4B are arranged so that the distance between the notch 4f is equal to the module size and placed on the molds 1, 2.
[0059]
  The anchor bolt fixing plates 4A and 4B arranged as described above are arranged close to each other but are not overlapped. However, the holes 4g formed along the peripheral edges of the anchor bolt fixing plates 4A and 4B coincide with the holes 1a to 3a formed in the flanges of the molds 1 to 3, respectively. At this time, when both the holes 4g and 1a to 3a do not match, it is possible to secure the street of the mold by matching them using Shino.
[0060]
  After the two anchor bolt fixing plates 4A and 4B are arranged at the L-shaped intersection A, the inner L-shaped plate 5 is placed on the entrance corner side above the anchor bolt fixing plates 4A and 4B. The outer L-shaped plate 6 is placed on the side, the corners of the L-shaped plates 5 and 6 are made to correspond to the corners of the anchor bolt fixing plates 4A and 5B arranged at the L-shaped intersection A, The holes 5b to 5d and 6b to 6d formed in the L-shaped plates 5 and 6 are connected in alignment with the holes 4g formed in the anchor bolt fixing plates 4A and 4B.
[0061]
  When connecting the two anchor bolt fixing plates 4A and 4B and the L-shaped plates 5 and 6 to the molds 1 to 3, the holes 5b to 5d, 6b to 6d, holes 4g, and holes 1a to 3a, an L-shaped plate fixed by inserting a pin having a head at one end thereof and overlapped by a lifting prevention metal fitting that combines a U-shaped member and a thumbscrew, an anchor bolt fixing plate, By sandwiching the flange of the mold frame, the anchor bolt fixing plates 4 </ b> A and 4 </ b> B are opposed to the upward pulling to realize a reliable connection.
[0062]
  As described above, the two anchor bolt fixing plates 4 (4A, 4B) are arranged in the L-shaped intersection A without overlapping each other, and the inner L-shaped plate 5 and the outer L-shaped plate 6 are arranged. By inserting and connecting pins into the respective holes, the panel formwork 1, the inner corner formwork 2, and the outer corner formwork 3 installed along the foundation in each direction can be linearized in each direction. It is possible to secure and connect, so that the street can be secured.
[0063]
  Further, by connecting the panel mold 1 that is continuous with the inner corner mold 2 arranged on the entrance corner side and the exit corner side, and the panel mold 1 that is continuous with the outer corner mold 3 by the L-shaped plates 5 and 6, It is possible to ensure the squareness of the entrance corner side and the exit corner side including the corner molds 2 and 3.
[0064]
  As described above, when the streets are secured by connecting the molds 1 to 3 installed along the respective directions in the L-shaped intersection A, and the squareness is secured, the upper side of the L-shaped intersection A Only one support piece 4b of the anchor bolt fixing plate 4 is disposed. For this reason, in the L-shaped intersection A, a space that is continuous with the adjacent straight line portion through the insertion hole 4e is formed.
[0065]
  Therefore, when adjusting the protrusion length of an anchor bolt (not shown) inserted into the support hole 4c formed in the anchor bolt fixing plate 4 by using the insertion hole 4e facing the upper side of the L-shaped intersection A. It is possible to easily perform an operation of inserting a hand into the back side of the anchor bolt fixing plate 4 and holding a nut screwed into the anchor bolt in advance. For this reason, it is possible to easily adjust the protruding length of the anchor bolt from the anchor bolt fixing plate, and it becomes easy to maintain the verticality of the anchor bolt.
[0066]
  In particular, by forming a hole 4d in a portion surrounded by the support hole 4c formed in the support piece 4b, the concrete introduced into the L-shaped intersection A from the input hole 4e using the hole 4d. It is possible to check whether the charged concrete is sufficiently filled in the area surrounded by the anchor bolts, and a rod-shaped vibrator is inserted to surround the anchor bolts. It is possible to surely level the concrete thrown into the part.
[0067]
  Next, a procedure for constructing a cross-shaped intersection using the anchor bolt fixing plate 4, the linear anchor bolt fixing plate 9, and the inner L-shaped plate 5 will be described with reference to FIG. 5. The cross-shaped crossing portion is configured such that two-way foundations penetrate each other, and an inner corner mold 2 is arranged at each corner, and the panel mold 1 is connected to the inner corner mold 2. It is configured.
[0068]
  The straight anchor bolt fixing plate 9 shown in the figure is provided with support pieces 9b formed with support holes 9c for supporting the anchor bolts at the center in the longitudinal direction of the main body plate 9a. Support pieces 9b are provided at positions corresponding to the dimensions. The body plate 9a has a plurality of insertion holes 9e formed between the support pieces 9b. Similarly to the anchor bolt fixing plate 4, the straight anchor bolt fixing plate 9 is formed with notches 9f on the outer periphery and a plurality of holes 9g along the outer edge.
[0069]
  In the straight anchor bolt fixing plate 9, the insertion holes 9e having a large area are formed on both sides of the support piece 9b along the main body plate 9a. Therefore, holes other than the support holes 9c (for example, the holes 4d) are formed in the support piece 9b. ), There will be no problem in proceeding with the concrete placing work and the work for checking the concrete that has been thrown in.
[0070]
  When constructing a cross-shaped intersection using each of the anchor bolt fixing plates 4 and 9 and the inner L-shaped plate 5, as shown in the figure, the support piece 9b of the straight anchor bolt fixing plate 9 is used as a cross-shaped intersection. The two anchor bolt fixing plates 4 are arranged so as to be opposed to each other and positioned along a mold frame whose longitudinal direction is set in one direction. Thereafter, the inner L-shaped plate 5 is arranged on the corner side formed by the straight anchor bolt fixing plate 9 and the anchor bolt fixing plate 4, and holes b to 5 d of the inner L-shaped plate 5 are formed in the plate 4. Then, the molds 1 and 2 are connected by inserting a pin (not shown) so as to coincide with the holes 4g and 9g of the plate 9 for fixing the linear anchor bolt.
[0071]
  By arranging the anchor bolt fixing plate 4 and the straight anchor bolt fixing plate 9 at the cross-shaped intersection as described above, the linearity of the panel mold 1 including the inner corner mold 2 installed in each direction is improved. It is possible to ensure the squareness.
[0072]
  Next, an example of the accessory plate will be described. FIGS. 6 (a) and 6 (b) show linear accessory plates 10 and 11 which are preset and have different lengths. As shown in the figure, a pair of L-shaped intersections A or T-shaped intersections B and a pair of two vertices in the direction crossing diagonally at the intersections of the foundations in two directions at the cross-shaped intersections. Diagonal pieces 21 are formed, and body plates 10a and 11a are formed which also serve as extension pieces along the extension direction of the foundation starting from the ends of the diagonal pieces 21.
[0073]
  The diagonal pieces 21 are disposed at least at the end portions of the main body plates 10a and 11a. The long main body plate 10a is provided with the diagonal pieces 21 at a predetermined pitch in the middle. And diagonal piecestwenty one InA support hole 22 for supporting the anchor bolt is formed, and at the center where the diagonal piece 21 intersects, a hole 23 for confirming the concrete thrown into the intersecting portion or inserting a rod-shaped vibrator is formed.
[0074]
  By forming a pair of diagonal pieces 21 on the main body plates 10a and 11a, a triangular hole 24 and a hexagonal hole 25 are formed between the diagonal piece 21 and the main body plates 10a and 11a. The hole 24 does not have a function of charging concrete, is used as a hole for confirming the charged concrete and compacting the charged concrete by inserting a bar vibrator, and the hole 25 is It is used as a hole for performing a series of concrete placements in which concrete is poured and compacted.
[0075]
  A plurality of holes 26 corresponding to the holes 1a to 3a formed in the flanges of the molds 1 to 3 are formed along the peripheral edges of the main body plates 10a and 11a. It is comprised so that the plates 10 and 11 and the molds 1-3 previously installed along the foundation can be connected.
[0076]
  The straight accessory plates 10 and 11 configured as described above can be used in the same manner as the anchor bolt fixing plates 4 and 9 described above.
[0077]
  FIG. 7 illustrates the configuration of the L-shaped accessory plate 12 arranged at the L-shaped intersection A. FIG. In the figure, the same reference numerals are assigned to the same parts and the parts having the same functions as those of the linear accessory plates 10 and 11 described above (the same applies hereinafter).
[0078]
  The L-shaped accessory plate 12 has a main body plate 12a provided with two pieces 12b serving as extension pieces in two directions intersecting at right angles starting from the end of the diagonal piece 21. A support hole 22 is formed in the diagonal piece 21, a hole 23 is formed at the intersection of the diagonal piece 21, and a hole 24 is formed between the diagonal piece 21 and the main body plate 12a. Further, a notch 27 is formed at the center in the width direction at the crossing portion having the diagonal piece 21, and a similar notch 28 is also formed at a position corresponding to the module dimension from the notch 27 in each piece 12b. ing.
[0079]
  A support piece 29 in which a support hole 22 is formed corresponding to the notch 28 in the main body plate 12a is provided across the width direction. The support piece 29 is formed in a flat plate shape having a width dimension capable of forming a plurality of support holes 22, and a hole 23 is formed in a portion surrounded by the support holes 22. Accordingly, a pentagonal hole 30 is formed between the diagonal piece 21 and the support piece 29, and a series of operations for placing concrete using the hole 30 can be performed.
[0080]
  In the L-shaped accessory plate 12, the diagonal piece 21 is arranged so as to face the L-shaped intersection A, and the piece 12 b is arranged along the formwork in each direction. By connecting them with each other, it is possible to secure the squareness while ensuring the street of the mold including the L-shaped intersection A by the single accessory plate 12. For this reason, workability can be improved.
[0081]
  FIG. 8 is a view showing another example of the L-shaped accessory plate 12. In this example, one diagonal piece 21 connecting two vertices at the diagonal among the four vertices constituting the intersection is provided. A protrusion piece 21a is formed which protrudes from the center of the diagonal piece 21 toward the other two vertices. Support holes 22 are formed in the diagonal pieces 21 and the protruding pieces 21a, respectively.
[0082]
  That is, in the L-shaped accessory plate 12 of this example, one diagonal piece 21 and two protrusion pieces 21a are formed without arranging the two diagonal pieces 21 at the intersection. Thus, the two diagonal pieces 21 do not necessarily have to be arranged in a cross shape at the crossing portion, and one diagonal piece 21 can be used as long as it has sufficient strength to support the four anchor bolts. But it is enough.
[0083]
  As described above, in the L-shaped accessory plate 12 configured by arranging one diagonal piece 21 and two projecting pieces 21a at the intersecting portion, a large hole 31 spanning the two pieces 12b including the intersecting portion is formed. It is formed.
[0084]
  FIG. 9 illustrates the configuration of the T-shaped accessory plate 13 disposed at the T-shaped intersection B. The T-shaped accessory plate 13 is arranged at a portion where the two-direction foundation intersects in a T-shape, and is provided with a piece 13b extending in three directions starting from the ends of the pair of diagonal pieces 21. It has a main body plate 13a. Two diagonal pieces 21, support holes 22, holes 23, 24 are formed at portions where each piece 13 b intersects the T shape, and the support pieces 29 are spaced from the diagonal pieces 21 according to the module dimensions. Is formed.
[0085]
  In the T-shaped accessory plate 13, diagonal pieces 21 are arranged so as to face the T-shaped intersection B, and the pieces are arranged along the formwork in each direction. In this way, it is possible to secure a squareness and a squareness including the T-shaped intersection B by the single T-shaped accessory plate 13. For this reason, workability can be improved.
[0086]
  FIG. 10 illustrates the configuration of the cross-shaped accessory plate 14 disposed at the cross intersection. The cross-shaped accessory plate 14 is a body plate provided with a piece 14b extending in four directions starting from the ends of a pair of diagonal pieces 21 and arranged at a portion where the foundations in two directions intersect in a cross shape. 14a. Two diagonal pieces 21, support holes 22, and holes 23 and 24 are formed at portions where each piece 14b intersects the cross, and the support pieces 29 are respectively separated from the diagonal pieces 21 according to the module dimensions. Is formed.
[0087]
  In the cross-shaped accessory plate 14, the diagonal pieces 21 are arranged so as to face the cross-shaped intersection, and the pieces are arranged along the formwork in each direction. By connecting, it is possible to secure a squareness while ensuring the street of the form including the T-shaped intersection B by the single cross-shaped accessory plate 13. For this reason, workability can be improved.
[0088]
  FIG. 10 is a diagram for explaining an example when a cross-shaped intersection is constructed using the T-shaped accessory plate 13, the anchor bolt fixing plate 4 and the inner L-shaped plate 5 described above. As shown in the figure, a T-shaped accessory plate 13 is disposed at a T-shaped portion at the cross-shaped intersection, the diagonal piece 21 is opposed to the intersection, and each piece is placed along the foundation in each direction. It is placed on the three-sided formwork in the formwork installed in a cross shape.
[0089]
  The anchor bolt fixing plate 4 is arranged on the remaining one mold frame with the end portion approaching the T mold frame 13, and the center of the hole 23 provided at the intersection of the T type accessory plate 13 and anchor bolt fixing The distance between the centers of the holes 4d provided in the plate 4 is set on the mold so as to coincide with the module dimensions. An inner L-shaped plate 5 is arranged at each corner formed by the straight portion of the T-shaped accessory plate 13 and the anchor bolt fixing plate 4, and the T-shaped accessory plate 13 and anchor bolt fixing are provided by the pieces 5a. Connect the plate 4.
[0090]
  After that, the hole 26 provided in the peripheral edge of the T-shaped accessory plate 13 and the hole provided in the flange of the mold frame are made to coincide with each other, and the hole 4g of the anchor bolt fixing plate 4 and the holes 5b to 5d of the inner L-shaped plate 5 By aligning the holes provided in the flanges of the frame and inserting pins (not shown) into the respective holes, the molds 1 and 2 and the T-shaped accessory plate 13 in each direction, the anchor bolt fixing plate 4 and the inner L-shape The plates 5 are connected.
[0091]
  As described above, the panel formwork 1 and the inner corner formwork 2 installed along the foundation in each direction are connected by the T-shaped accessory plate 13, the anchor bolt fixing plate 4, and the inner L-shaped plate 5. Thus, it is possible to secure the streets in each direction and the squareness.
[0092]
【The invention's effect】
  As described above in detail, in the method for constructing a form according to the present invention, only the anchor bolt fixing plate arranged in one direction is present at the upper part of the intersection, so that the support hole for supporting the anchor bolt is provided. A large concrete insertion hole formed adjacent to the support piece provided with a wall faces the intersection, and the end of the anchor bolt fixing plate arranged in the other direction is positioned in the vicinity of the anchor bolt fixing plate. By doing so, it is possible to form a sufficient space for putting concrete between the anchor bolt fixing plates.
[0093]
  For this reason, it is possible to easily put concrete into the crossing part of the foundation from the filling hole and space, and after pouring the concrete, the work of compacting the concrete by inserting a bar vibrator is easy. Can be done. In addition, it is possible to check the concrete that has been thrown in and to check the leveling condition. Accordingly, it is possible to reliably fill and level the concrete to every corner of the intersection, and to check this state during the work.
[0094]
  In addition, since the insertion hole formed around the support piece is not substantially closed by another anchor bolt fixing plate, it becomes easy to put a hand on the back surface of the anchor bolt fixing plate at the intersection, It is possible to easily perform an operation of manually holding the nut of the anchor bolt, which is screwed in advance and inserted from the back side of the anchor bolt fixing plate. For this reason, the protrusion length of the anchor bolt from the anchor bolt fixing plate can be adjusted easily and reliably.
[0095]
  In particular, since there is one anchor bolt fixing plate facing the intersecting portion, it is possible to easily improve the standing accuracy of the anchor bolt inserted through the support hole formed in the support piece. In addition, since a large hole is formed around the support piece, it is possible to insert a hand using this hole, and when tightening the two nuts screwed to the anchor bolt with the support piece sandwiched, The work of holding the nut on the side can be easily performed. Furthermore, by making the anchor bolt fixing plates continuous without overlapping the anchor bolt fixing plate at both the crossing portion of the two-way foundation and the straight portion of the foundation, the protruding length of the anchor bolt from the anchor bolt fixing plate can be easily visually confirmed. I can do it. For this reason, the upright accuracy of the anchor bolt is improved, the height of the anchor bolt can be easily checked, and the anchor bolt fixing plate is secured to the anchor bolt.
The fixing work to be performed can be easily performed.
[0096]
  Further, in the L-shaped plate according to the present invention, two adjacent anchor bolt fixing plates can be connected and connected to the formwork without overlapping each other at the intersection. For this reason, it is possible to ensure the streets of the molds installed in each direction and to ensure the perpendicularity at the intersection.
[0097]
  Further, in the accessory plate according to the present invention, a support piece made of a diagonal piece connecting each vertex constituting the intersection is provided, and a support hole is formed in the support piece, so that a triangle or a pentagon is formed around the support piece. A charging hole can be formed. For this reason, when the support piece is arranged facing the upper portion of the intersection, it is possible to easily perform the work of putting concrete by forming a pentagonal wide concrete input hole around the support piece, and The work of leveling the input concrete can be easily performed.
[0098]
  In addition, the extension piece extended along the direction of the foundation from the diagonal piece corresponding to the intersection is placed on the flange of the formwork and connects the formwork installed in each direction, so it corresponds to the shape of the intersection By using the accessory plate having the shape, it is possible to ensure the street of the formwork and the perpendicularity at the intersection in one operation.
[Brief description of the drawings]
FIG. 1 is a diagram showing a construction example for a corner portion of a foundation.
FIG. 2 is a diagram for explaining an example of installation of a formwork.
FIG. 3 is a diagram illustrating an example of arrangement of molds that form corners.
FIG. 4 is a diagram illustrating an example of an L-shaped plate.
FIG. 5 is a diagram showing a construction example for a basic cross-shaped intersection.
FIG. 6 is a diagram for explaining an example of a straight hand plate.
FIG. 7 is a diagram illustrating an example of an L-shaped accessory plate.
FIG. 8 is a diagram illustrating another example of an L-shaped accessory plate.
FIG. 9 is a diagram illustrating an example of a T-shaped accessory plate.
FIG. 10 is a diagram illustrating an example of a cross-shaped accessory plate.
FIG. 11 is a diagram for explaining a construction example for a cross-shaped intersection using a T-shaped accessory plate and an L-shaped plate.
FIG. 12 is a diagram for explaining a method for constructing a mold using a conventional jig.
[Explanation of symbols]
  A L-shaped intersection
  B T intersection
  1 Panel formwork
  1a-3a hole
  2 Inside corner formwork
  3 Outside corner formwork
  4,4A, 4B Anchor bolt fixing plate
  4a Body plate
  4b Support piece
  4c Support hole
  4d hole
  4e Input hole
  4f Notch
  4g hole
  4h hole
  4i end piece
  5 L-shaped plate
  5a, 6a pieces
  5b-5d, 6b-6d hole
  6 Outer L-shaped plate
  7 Combined L-shaped plate
  7a piece
  7b-7d hole
  7e oblong hole
  9 Straight anchor bolt fixing plate
  9a Body plate
  9b Support piece
  9c Support hole
  9e Input hole
  9f Notch
  9g hole
  10, 11 Straight member plate
  10a, 11a Body plate
  10b, 11b pieces
  12 L-shaped accessory plate
  12a Body plate
  12b piece
  13 T-shaped object plate
  13a Body plate
  13b piece
  14 Cross-shaped object plate
  14a Body plate
  14b piece
  21 diagonal
  21a Protruding piece
  22 Support hole
  23 holes
  24, 25 holes
  26 holes
  27, 28 Notch
  29 Support strip
  30, 31 holes

Claims (2)

Forms are set in correspondence with the two-way crossing foundations, and anchor bolt fixing plates having predetermined width dimensions are attached to the upper parts of these forms to set the width and street of the form. A method for constructing a mold, in which an anchor bolt fixing plate is arranged at the upper part of a mold installed in one direction at an intersection where two-way foundations intersect, and the anchor bolt fixing plate intersects The anchor bolt fixing plate is disposed on the upper part of the mold that is installed in the other direction, and the end of the anchor bolt fixing plate is disposed at the intersection of the mold that is installed in the one direction. is close to the degree that does not overlap with the anchor bolt fixing plate disposed at the top, further, external corner side of the mold which constitutes the intersection and, or formed in respective L-shaped at the top of the inside corner side L-shape With arranging the rate, the L-shaped plate and the mold process construction, which comprises connecting together the anchor bolt fixing plate and the mold. A jig that installs a formwork corresponding to two intersecting foundations and attaches it to the upper part of the foundation intersection to set the width and street of the formwork. One or two diagonal pieces connected to the corners, and plate-like pieces that extend from the ends of the one or two diagonal pieces in the direction of the foundation and set the width and street of the formwork, The accessory plate according to claim 1 , wherein a hole is provided at a predetermined position in the one or two diagonal pieces, and four through holes for holding anchor bolts are provided so as to surround the hole .

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