JP2010031577A - Form of panel zone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a form of a panel zone, which can flexibly adapt to a shape of a beam, different on each construction site, on a job site, which enables diversion, which can save labor for newly manufacturing the form, and which can enhance constructibility by facilitating the shape retention of the form by concrete lateral pressure in the placing of concrete. <P>SOLUTION: In this form of the panel zone as a beam-column joint, a plurality of horizontal battens 2 are mounted at proper spacings on the outside of a sheathing board 1; and an adjusting plate 3b, the height of which can be freely adjusted, is laterally mounted on the inside thereof in the state of being superposed in a free mounting position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a form of a panel zone which is a column beam joint.

  When concrete is placed in a column-beam joint (panel zone) in a building with steel reinforced concrete (SRC) column members and steel beam members, the joints are completely plugged according to the shape of each part of the column beam. It is necessary to set the formwork processed into such a shape.

  Patent Document 1 shows an example of this, and a closing plate that matches the column cross section is held by a mounting plate provided between the upper and lower flanges of the beam as a mold for closing the panel zone.

Patent Document 2 shows another example, after welding the rib plate in advance between the upper and lower flanges at positions corresponding to the outer contour of the reinforced concrete column on both sides of the steel beam end, and joining the steel beam in a cross shape, A steel plate that has been bent into an angle to be a formwork and joint panel material for placing and filling concrete into the joint is attached to the rib plate by bolting, thereby closing the panel zone with the steel plate. Yes.
JP 2005-188102 A JP 2006-118201 A

  In the construction work of the joint between the SRC column and the steel beam, the formwork whose size is adjusted for each part and the members (mounting plates and rib plates) for mounting it are required. If the size is different, it is necessary to make a panel zone form for each pillar.

  Therefore, the formwork cannot be diverted, the work for producing the formwork is troublesome, and the cost of the new material increases.

  In addition, when placing concrete, it is necessary to weld a pulling material (form tie, etc.) to the steel frame part, or to push from the outer periphery (support, etc.) in order to maintain the shape of the formwork against the concrete side pressure. These mounting efforts are required, and the mounting material is also bulky.

  The present invention eliminates the inconvenience, can flexibly cope with different beam shapes at each construction site, can be diverted, and can save time and labor for producing a new formwork. It is an object of the present invention to provide a panel zone formwork that can easily maintain the shape of the formwork by the concrete side pressure at the time of placing and improve the workability.

  The present invention according to claim 1 is a formwork of a panel zone which is a beam-column joint, and a plurality of lateral end thicknesses are attached to the outer side of the plate at appropriate intervals, and an adjustment plate whose height is adjustable is provided on the inner side. The gist is that they are attached in a lateral direction so as to be freely mounted.

  According to the first aspect of the present invention, the size of the steel beam varies depending on the construction location by combining the adjustment plate capable of adjusting the height and the width in the width direction with the slat plate in which the lateral end thick is attached in advance. In the case, the height can be adjusted in the vertical direction with the adjustment plate, and the width in the horizontal direction can be adjusted with the adjustment plate and the platen. Is possible.

  The gist of the present invention described in claim 2 is that a siding plate fixing member provided with means for vertically stretching is disposed between the top and bottom flanges of the steel beam outside the siding plate.

  According to the second aspect of the present invention, when the concrete is placed in the panel zone, the retaining plate fixing member is stretched in the vertical direction between the upper and lower flanges on the outside of the retaining plate in order to maintain the formwork against the concrete side pressure. It is possible to easily hold the weir plate from the outside simply by arranging it. And since installation of this fixing member is fixed by friction with an up-and-down flange, fixing work, such as welding, can be omitted like before, and workability is good.

  The gist of the present invention described in claim 3 is that the baffle fixing member is a bar, and the tension means is constituted by an adjusting screw.

  According to the third aspect of the present invention, since the dam plate fixing member is formed in the shape of a tension bar, the dam plate can be pressed and fixed from the outside by a simple operation by simply placing the adjustment screw by turning the adjustment screw.

  As described above, the panel zone mold according to the present invention is composed of a combination of a slat plate and an adjustment plate that is freely adjustable in length in the vertical and horizontal directions with respect to this sill plate. By adjusting the position of the plate in the vertical and horizontal directions, it is possible to flexibly respond to different beam shapes at each construction site, and it can be diverted, saving the effort of creating a new formwork, and concrete. The shape of the mold can be easily maintained by the concrete side pressure at the time of placing, and the workability can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an assembled perspective view showing an embodiment of a panel zone mold according to the present invention, FIG. 2 is an exploded perspective view of the same, and 1 in the figure shows a stencil board such as an NF board as a mold body, A plurality of lateral end thickenings 2 were attached to the outside of the dam plate 1 at appropriate intervals.

  The width of the horizontal end thick 2 is set to a pitch that prevents the siding plate 1 from sticking to the outside when the concrete is placed, and the length of the horizontal end thick 2 is set to a length that protrudes from the sill plate 1.

  Reference numeral 3 in the figure denotes height and width adjusting means that are slidably combined inside the dam plate 1, and an adjusting plate 3b that is slidable in the vertical direction is combined with the lower part of the abutting plate 3a that is the main body. The abutting plate 3a has a height equal to the normal height in the steel beam flange, and a lateral width formed in a vertically long rectangle from the end of the steel beam to the web.

  And the notch 1a is formed in the board 1 in the edge part in either the right and left either up and down, and it protrudes outside from the said notch 1a when it combines with the board 1 to the contact plate 3a and the adjustment plate 3b. The horizontal protruding piece 5 is provided by bending.

  A demolding bolt 4 was attached to the abutting plate 3a.

  In the figure, reference numeral 7 denotes a corner angle member attached to the inner side of the dam plate 1 when the two dam plates 1 are joined at an angle, and a fixing screw through hole 7a is formed in the upper portion.

  In the figure, reference numeral 6 denotes a head fixing screw which is pre-welded to a con-stop angle of the upper floor slab above the panel zone.

  In the figure, 8 is a square-clamping pipe that presses the corner when the two plates 1 are orthogonally combined from the outside, and an insertion hole 10 is formed in the upper part to insert the upper retaining metal 9 in the lower part. A vertically long adjustment loose hole 12 into which the retaining metal 11 is inserted is formed.

  As shown in FIG. 3, the lower clasp 11 has a main body formed by a screw rod 11a, a horizontal protrusion 11b is attached to the tip of the screw rod 11a, and the tip is notched at an angle so that it fits in the notch. Then, the angle member 11c was fixed in the vertical direction perpendicular to the horizontal protrusion 11b.

  In the figure, reference numeral 13 denotes a formwork fixing strut for fixing the dam plate 1 so that it does not stick to the outside. It is a vertically long and slightly rectangular parallelepiped shape, and an adjustment bolt 14 is attached to the lower part so that the height can be adjusted. .

  In order to assemble the formwork composed of the above components in the panel zone, the mounting height of the adjustment plate 3b is adjusted in the vertical direction with respect to the contact plate 3a arranged on the back surface of the dam plate 1, Further, the left and right positions are adjusted with respect to the dam plate 1 by the engagement between the contact plate 3a to which the adjustment plate 3b is attached and the dam plate 1.

  As a result, a formwork in which the height direction and the width direction are determined is formed as a whole by the dam plate 1 and the adjustment means 3 integrated therewith, and a gap is generated in accordance with the beam shape and size of the construction site. No formwork is obtained.

  Two such plates 1 and adjusting means 3 are assembled, and a corner angle material 7 is disposed inside the corner portion to join the two plates 1 together.

  Since the lateral end 2 crosses the outside of the corner portion, a square fastening pipe 8 is attached to this intersection portion, the upper retaining metal 9 is inserted into the insertion hole 10 and the screw through hole 7a, and the lower retaining metal 11 is It inserts in the adjustment loose hole 12, the square clamp pipe 8 is fixed to the outer corner part of the dam plate 1, and the dam plate 1 is pressed from the outer side.

  When fixing the lower clasp 11 to the square fastening pipe 8, as shown in FIG. 4, the horizontal protrusion 11b is inserted between the already-assembled lower mold 15 and the slat plate 1, and the angle member 11c at the tip is attached. The threaded rod 11a is tightened in a state where the lower mold 15 and the bottom plate 1 are in contact with the back surfaces of the lower mold 15 and the side plate 1 and the side surface of the square tightening pipe 8 is applied to the lateral end thick 2.

  At this time, a reaction force is applied to the head fixing screw 6 and the lower mold 15 to be tightened. As a result, the angle member 11 c of the lower retaining metal 11 is pressed against the dam plate 1 and the lower mold 15, and the square clamp pipe 8 is pressed against the lateral end thick 2. Since the corner portion is fixed only to the head fixing screw 6 and the lower mold 15 by the corner angle member 7 and the corner fastening pipe 8, the accuracy can be easily obtained.

  Further, as shown in FIG. 1, the side surface of the formwork fixing tension bar 13 is applied to the outside of the lateral end thick 2. At this time, the lower part of the mold fixing tension bar 13 is placed on the lower flange of the cross beam, and the height of the mold fixing tension bar 13 is adjusted with the adjusting bolt 14 so that the upper end of the mold fixing tension bar 13 is adjusted. Abut on the upper flange of the cross beam.

  In this state, the dam plate 1 is pressed from the outside by the mold fixing tension bar 13, and the mold fixing tension bar 13 is located between the upper and lower flanges and is easily fixed between the upper and lower flanges by frictional resistance with the upper and lower flanges.

  Concrete is placed in the mold assembled in the panel zone as described above. The side pressure due to the concrete placement is applied to the dam 1 and transmitted to the lateral end 2, and further to the formwork fixing tension bar 13 and the square clamp pipe 8.

  As a result, a force to open the corner fastening pipe 8 to the outside is applied, and this force pulls the screw rod 11a inserted in the lower retaining hardware 11 to the outside and is attached to the tip of the screw rod 11a. The angle member 11c pulls the lower mold 15 further.

  However, the lower mold 15 is reinforced by a channel or the like and does not move. Therefore, the dam 1 is restrained by the rigidity of the lower mold 15 via the square fastening pipe 8 and the lower retaining metal 11, and is prevented from being caught outside.

  At the time of demolding, since the bolt 4 for demolding is attached to the abutting plate 3a, a reaction force can be obtained by pressing this bolt 4 against the concrete at the time of dismantling, so that the abutting plate 3a can be easily demolded. Therefore, it is not necessary to twist the abutting plate 3a as in the conventional case, and the thickness of the iron plate can be reduced, the weight can be reduced, and it can be reused.

It is a perspective view which shows embodiment of the formwork of the panel zone of this invention. It is a disassembled perspective view which shows embodiment of the formwork of the panel zone of this invention. It is a perspective view of the lower securing metal object which is the principal part which shows embodiment of the formwork of the panel zone of this invention. It is a vertical side view of the fixing | fixed part by the lower securing metal object which shows embodiment of the formwork of the panel zone of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stop plate 1a Notch 2 Thick side edge 3 Adjustment means 3a Contact plate 3b Adjustment plate 4 Bolt 5 Horizontal protrusion 6 Head fixing screw 7 Corner angle material 7a Screw through-hole 8 Square clamp pipe 9 Upper retaining metal object 10 Insertion hole 11 Lower clamp hardware 11a Screw rod 11b Horizontal protrusion 11c Angle material 12 Adjustment loose hole 13 Mold frame fixing tension rod 14 Adjustment bolt 15 Lower mold

Claims (3)

  A panel zone formwork that is a column-beam joint. A plurality of horizontal end thicknesses are attached to the outside of the slats at appropriate intervals, and height-adjustable adjustment plates are attached to the inside in a horizontal direction. Panel zone formwork characterized by being attached.   The form of the panel zone according to claim 1, wherein a siding plate fixing member provided with means for vertically stretching is disposed between the top and bottom flanges of the steel beam outside the siding plate.   3. The panel zone mold according to claim 2, wherein the baffle fixing member is a bar, and the tension means is an adjustment screw.

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