JP2006002542A - Auxiliary member for form - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auxiliary member for a form easily storable since it is easy to handle due to its reduced size and weight and takes less installation space and capable of supporting all form panels for beam lower surfaces from the lower surfaces at a same height in a horizontal state. <P>SOLUTION: This auxiliary member for the form comprises a main body part 1 properly mounted on the surface 5a of a mold panel 4 for wall surface vertically installed for molding a concrete wall W1 at a prescribed position by a fixing means 3 and brought into contact with the surface 5a of the form panel 4 for wall surface and an auxiliary body part 2 having an upper surface 2a positioned at right angle to the rear surface 1a of the main body part 1 and capable of supporting a form panel 21 for beam lower surface for molding a concrete beam W2 from the lower surface in a horizontal state. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  In the present invention, when concrete is cast and various beams are cast and beams and ceilings are formed together with walls, the form panel for the lower surface of the beam forming the beam is supported easily from the lower surface in a horizontal state. The present invention relates to a formwork auxiliary member.

Conventionally, for example, when building a concrete building having a floor, walls, and beams, a wall formwork panel for forming a concrete wall is erected on the floor surface, and a concrete beam is formed on one side surface of the upper end portion thereof. A form panel for the underside of the beam to be connected is provided. Further, the beam side surface formwork panel is erected and assembled at one side edge of the beam lower surface formwork panel. In this state, a plurality of stretchable jacks called supports are set up on the floor surface, and the upper ends of the jacks are pressed against and supported by the lower surface of the beam lower surface formwork panel. The form panel for the lower surface of the beam, which is originally in a horizontal state, is prevented from tilting downward (see, for example, Patent Document 1).
JP 2000-248740 A (page 6-7, FIG. 7, FIG. 10, FIG. 11)

  However, the telescopic jack, which is the support of Patent Document 1, is made of metal and has a length as long as the operator's length and also has a weight. Difficult to store. In addition, the beam lower surface formwork panel needs to be held almost horizontally when forming the beam. However, by using a plurality of the extension jacks, the beam lower surface formwork panels are all in the same height position and in a horizontal state. However, it is difficult to assemble the form panels for the underside of each beam.

  Therefore, the present invention has been made to solve the above-mentioned problems, and is small and light, easy to handle in work, and easy to store because it does not take up space, and the form panels for the lower surfaces of the beams are all the same. An object of the present invention is to provide an auxiliary member for a formwork that can be easily supported from the lower surface at a height position and in a horizontal state.

  In order to achieve such an object, the auxiliary member for formwork according to the present invention is attached to a predetermined position of the surface of the formwork panel for wall surface standing upright for forming the concrete wall by a fixing means, and is used for the wall surface. A main body abutting on the surface of the formwork panel, and a sub-body part capable of supporting the formwork panel for the lower surface of the beam forming the concrete beam in a horizontal state from the lower surface, the upper surface being perpendicular to the back surface of the main body part Consists of

  As the fixing means, for example, a holding plate that is provided on the back surface of the main body portion and is mounted on a horizontal crosspiece formed on the surface of the wall surface formwork panel is selected. The auxiliary member for formwork of the present invention can also be used when assembling a formwork panel for a ceiling surface to form a concrete ceiling in addition to a concrete beam.

  The auxiliary member for formwork according to the present invention is composed of a main part that abuts on the surface of the formwork panel for wall surface, and a sub-body part that can support the formwork panel for the lower surface of the beam from its lower surface in a horizontal state. Therefore, it is small and light and easy to handle. In addition, it is easy to store because there is no space. Furthermore, the main part of the auxiliary member for the formwork is only brought into contact with the surface of the formwork panel for the wall surface, so that the upper surface of the sub-body part is set to be horizontal. There is a beneficial effect that the formwork panel can be supported in a horizontal state and can be easily supported from the lower surface at the same height position.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an auxiliary member for formwork according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an auxiliary member for formwork according to the present invention. The auxiliary member A for formwork is made of, for example, a metal square pipe having a required strength, and is formed by being bent into an inverted L shape at a substantially central portion. And the back surface 1a of the vertical rod part 1 which is a main body part and the upper surface 2a of the horizontal rib part 2 which is a sub-body part are manufactured so that it may become a right angle. In addition, a holding plate 3 as a fixing means is integrally provided at a predetermined height position on the back surface 1a of the vertical flange 1. The lower surface 3a of the holding plate 3 is set so as to be parallel to the upper surface 2a of the horizontal flange 2.

  Specifically, the formwork auxiliary member A is formed from a square pipe having a side of about 60 mm. For example, the vertical dimension of the vertical flange 1 is 555 mm, and the longitudinal dimension of the horizontal flange 2 is 360 mm. It is. The holding plate 3 has an upper and lower length dimension of 150 mm and a thickness of 8 mm. The holding plate 3 is provided at a position 135 mm lower than the upper end surface of the back surface 1a of the vertical saddle portion 1, and the back surface 1a of the vertical saddle portion 1 is in contact with the surface of the wall surface formwork panel 4 described later and has a predetermined horizontal level. Is placed on the upper surface of the horizontal crosspiece 8b. At this time, the horizontal flange 2 extends forward from the upper end of the vertical flange 1 and is arranged at a position to horizontally support the beam lower surface formwork panel 21 forming the beam W2 at a predetermined height. Become.

  In the present embodiment, the main body portion and the sub body portion are formed by a single square pipe. However, the back surface 1a of the main body portion and the upper surface 2a of the sub body portion are at right angles, and the lower surface 3a of the holding plate 3 that is a fixing means. Is parallel to the upper surface 2a of the sub body portion, the main body portion and the sub body portion may be a polygonal frame or plate such as a triangle or a quadrangle, and the fixing means is also a square pipe or a triangle or other polygon. These shapes may be freely selected.

  The wall surface formwork panel 4 is made of FRP and includes, for example, a vertical rectangular substrate 5 having a vertical dimension of 1800 mm and a horizontal dimension of 600 mm. Although the vertical dimension of the board | substrate 5 is not limited to fixed length, it is set shorter than the distance between the floor and ceiling of each floor of a concrete building at least. Then, two (four in total) aluminum fixing frames 6a and 6b are parallel to the surface 5a of the substrate 5 at both side edges and the central portion along the longitudinal direction by screws (not shown). Attached and fixed. A wooden upper edge frame 7 is fixed to the upper edge of the surface 5 a of the substrate 5. The lower ends of the fixed frames 6a and 6b protrude downward from the lower end edge of the substrate 5 by a predetermined length.

  On the surface 5a of the substrate 5, a central vertical beam portion 8a and a plurality of horizontal beam portions 8b, 8b,. A plurality of mounting holes 9 through which separators 11 to be described later are inserted at equal intervals along the longitudinal direction of the vertical beam portion 8a in order to set the interval between the facing wall form panels 4 and 4 to a predetermined dimension. Established. Further, the fixed frames 6a, 6a located on both side edges of the substrate 5 are formed in a strip shape, and will be described later along the longitudinal direction in order to join the side wall form panels 4, 4 which are connected laterally. A plurality of through holes 10 through which the connecting fitting 24 is inserted are arranged at equal intervals.

  As shown in FIG. 3, the separator 11 has screw grooves 13 and 13 formed on both ends of a body portion 12 made of a metal rod, and frustoconical adjusters 14 and 14 are screwed into both screw grooves 13 and 13. Is done. Further, nuts 15, 15 that are similarly screwed into both screw grooves 13, 13 are arranged on the outside thereof, and a pair of strips 17 that are provided with elongated through holes 16, 16 penetrating vertically through the nuts 15, 15. , 17 are fixed. The wedges 18 are vertically inserted into the long and narrow through holes 16 and 16. In FIG. 3, the other strips 17, 17 and the wedge 18 are not shown.

  Next, the construction method which assembles a concrete formwork using the auxiliary member A for formwork is demonstrated. FIG. 4 shows a cross-sectional view during construction of a floor with a concrete building. In the figure, W1 is a wall, W2 is a beam, and W3 is a ceiling, which are formed after placing concrete in a concrete formwork. For this purpose, first, the bottom plate 19 is laid on the floor F surface, and a plurality of lower flexible panels 20 are connected and fixed to the upper surface of the edge, and the wall formwork panel 4 is formed in a wall shape on them. Connect multiple sheets and stand upright. At this time, the fixed frames 6a and 6b projecting downward from the lower edge of the wall surface formwork panels 4 come into contact with the surface of the lower universal panel 20 so that they can withstand the pressure of the placed concrete. It has become. Although illustration is omitted, similarly, a plurality of wall surface formwork panels 4 are connected in a wall shape so as to face each of the wall surface formwork panels 4 and be separated by a predetermined width (thickness of the wall W1).

  A beam lower surface formwork panel 21 for forming the lower surface of the beam W2 on the upper end edge of each wall surface formwork panel 4 protrudes substantially horizontally forward, and further, the side surface of the beam W2 is formed on the upper surface of the front end edge. The beam side formwork panel 22 is erected. Between the two wall surface form panels 4 and 4 which are spaced apart from each other by a predetermined distance, a spacing is set by a regulator 14 and screw grooves 13 at both ends of the body 12 in the separator 11 are set in corresponding mounting holes 9 and 9. 13 is inserted. Then, a nut 15 is screwed into each screw groove 13 from the front side of each wall surface formwork panel 4. Further, the crossbar 23 is pressed against the front side of the wall surface formwork panels 4, 4 so as to be inserted between the strips 17, 17, and in this state, the wedges 18 are inserted into the long narrow holes 16, 16 from above. Insert. Thereby, the formwork panels 4 and 4 for wall surfaces which oppose are firmly fixed.

  On the other hand, the adjacent wall surface form panels 4 and 4 are fixed firmly to each other by abutting the fixing frames 6a and 6a at the side edges and inserting the connecting fitting 24 into the through holes 10 communicating with each other. Is done. The connecting fitting 24 is formed in a substantially O-shaped plane by an insertion portion 24a inserted into the through hole 10 and sandwiching portions 24b and 24b that sandwich the two fixing frames 6a and 6a from the outside. . And the dimension between the said clamping parts 24b and 24b is set slightly narrower than the width | variety of both the fixed frames 6a and 6a, and both fixed frames 6a and 6a can be fixedly connected firmly without loosening. .

  In the present invention, as shown in FIGS. 5 and 6, when the crosspiece 23 is inserted through the separator 11 located on the top of each wall formwork panel 4, the formwork auxiliary member A is previously attached to each wall formwork panel. 4 is attached to the surface 5a. That is, the back surface 1a of each vertical flange 1 is brought into contact with the surface 5a of each substrate 5, and the holding plate 3 is placed on the upper surface of the uppermost horizontal beam portion 8b. At this time, the upper surface 2a of the reed portion 2 is positioned substantially horizontally and is positioned below the beam lower surface formwork panel 21 for forming the beam W2.

  After the assembly of the concrete formwork is complete, the concrete is driven into the formwork. At this time, even if the beam lower surface formwork panel 21 is inclined downward due to the weight of the beam W2 portion, each formwork auxiliary member A is supported from below at a predetermined height and in a horizontal state. The horizontality of the form panel 21 for the lower surface of the beam will not be out of order. After the concrete is hardened, the separators 11, the crossbars 23, the formwork auxiliary members A, the wall formwork panels 4, the beam lower surface / side formwork panels 21 and 22 are removed. Then, these are carried to the next floor and the same work is performed.

  As described above, the present invention is constituted by the main portion 1 that abuts the surface 5a of the wall surface formwork panel 4 and the sub-body portion 2 that can support the lower surface formwork panel 21 from the lower surface in a horizontal state. Therefore, it is small and light and easy to handle. In addition, it is easy to store because there is no space. Further, the upper surface 2a of the sub body portion 2 is perpendicular to the back surface 1a of the main body portion 1 only by contacting the main body portion 1 of the auxiliary member A for formwork with one side surface 5a of the wall surface formwork panel 4. It is set to be horizontal, and a plurality of beam form panels 21 connected to each other can be supported at the same height and in a horizontal state.

The perspective view of the auxiliary member for formwork which concerns on this invention. The perspective view of the formwork panel for wall surfaces. The perspective view of a separator. Sectional drawing in the middle of construction of the floor with a concrete building. The expanded sectional view of the principal part. The enlarged front view of the principal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main part 1a Back surface 2 Subbody part 3 Holding plate 4 Formwork panel for wall surface 8b Horizontal beam part 21 Formwork panel for beam undersurface A Auxiliary member for formwork W1 Wall W2 Beam

Claims (2)

  A main body part and an upper surface that are attached to a predetermined position on the surface of the wall formwork panel standing up to form the concrete wall by a fixing means as appropriate, abutting against the surface of the wall formwork panel, and a rear surface of the main body part An auxiliary member for a formwork comprising a sub-body part capable of supporting a formwork panel for a lower surface of a beam forming a concrete beam at a right angle to the lower face in a horizontal state.   2. The formwork auxiliary member according to claim 1, wherein the fixing means is a holding plate that is provided on a back surface of the main body part and is mounted on a horizontal crosspiece formed on one side surface of the wall formwork panel.

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