JP3065543U - Joint formwork device for PC column / PC beam joint - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A joint formwork device for a PC column / PC beam joint that can be expected to save labor and reduce costs and does not cause individual differences in work. [Means] The length is equal to the length of the PC beam 2, and one of the pieces 10
L-shaped bracket 5 provided with a long slot on the side at predetermined intervals in the length direction, and a screw hole provided on one flange 13 corresponding to the slot with a length equal to that of PC beam 2. The Z-shaped bracket 6 is elastically connected with a screw, and the combined body 16 is connected to the PC column 1 by a combined body 18 of a plurality of sets of bolts 8 and long nuts 9.
It is detachably attached to one side of the joint 3 at the joint between the PC beam 2 and the joint.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a joint formwork device for a PC column / PC beam joint.

[0002]

[Prior art]

 In the conventional joint formwork device for joints between PC columns and PC beams, inserts are buried in advance in the side surfaces of the end portions of the PC beams, and a form panel processed to a predetermined size is applied to the side surfaces of the PC columns. In general, the base is attached to the insert by bolting the base to the insert. However, this conventional technique includes the installation of the insert, the processing of the formwork panel, the staking of the formwork panel tip, and the like. Therefore, there are problems that it takes time and cost, and that the finish condition of the joint surface tends to be different depending on the worker, and repair is often required.

[0003]

[Problems to be solved by the invention]

 The problem to be solved by the present invention (the object of the present invention) is that, in view of the above-mentioned problems of the prior art, it is expected that labor saving and cost reduction of work can be expected, and PC columns and PC beams which do not cause individual differences in work. An object of the present invention is to provide a joint formwork device for a joint.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, in the present invention, the joint formwork device at the joint of the PC column and the PC beam is provided with a length equal to the length of the PC beam and any one of two orthogonal pieces in the longitudinal direction appropriately. An L-shaped bracket having a long slot on each side at an interval, and one of two flanges extending in opposite directions, each having a length equal to that of a PC beam. A Z-shaped bracket having screw holes at corresponding locations, a plurality of screws for coupling the L-shaped bracket and the Z-shaped bracket, and a combined body of the L-shaped bracket and the Z-shaped bracket. It consists of multiple sets of bolts and long nuts for removably attaching to one side of the joint at the joint between the PC column and the PC beam.

[0005] In the joint formwork device of the present invention, the piece provided with the slotted hole of the L-shaped fitting and the flange provided with the screw hole of the Z-shaped fitting are overlapped to form a combined body having an adjustable lateral width. Thus, there is an advantage that the joint width can be easily coped with a change in joint width, and since the contact area between the joint and the PC beam and the PC column is large, it is possible to effectively prevent slag leakage.

[0006]

[Embodiment of the invention]

 1 and 2, 1 is a PC column, 2 is a PC beam, 3 is a joint at a joint between the PC column 1 and the PC beam 2, and 4 is a joint formwork device attached to both sides of the joint 3.

As is apparent from FIGS. 3 and 4, the joint formwork device 4 includes an L-shaped fitting 5, a Z-shaped fitting 6, a plurality of (three in the figure) screws 7, and a plurality of sets (see FIG. 3). In this case, three sets of bolts 8 and long nuts 9 are provided.

The L-shaped bracket 5 has a length equal to the length of the PC beam 2 and a plurality of portions (three in the figure) at appropriate intervals in the longitudinal direction of one of the orthogonal pieces 10 and 11. ), A long slot 12 is formed on each side. Although the illustrated slot 12 is open at one end, it may be closed.

The Z-shaped bracket 6 has a length equal to that of the PC beam 2, and corresponds to the longitudinal slot 12 of one of the flanges 13, 14 extending in the opposite directions. A screw hole 15 is formed at each location.

The screw 7 is for connecting the L-shaped fitting 5 and the Z-shaped fitting 6. The joining operation is performed by overlapping the piece 10 of the L-shaped fitting 5 with the flange 13 of the Z-shaped fitting 6, and forming a slot 12. The screw 7 is passed through the screw hole 15 and its tip is screwed into the screw hole 15. The width of the coupling body 16 thus formed is adjustable by an amount corresponding to the length of the slot 12. .

The bolts 8 and the long nuts 9 are used for mounting the combined body 16. The mounting work is performed with the screws 7 of the combined body 16 loosened and the flange 14 of the Z-shaped bracket 6 and the outer surface of the web 17. As shown in FIG. 3, a bolt 8 and a long nut 9 are joined between the web 17 of the Z-shaped bracket 6 and the piece 11 of the L-shaped bracket 5 which abut against the corner of the PC beam 2. 18, the connecting body 18 is extended, the outer surface of the piece 11 of the L-shaped bracket 5 is pressed against the side surface of the PC column 1, and then the screw 7 is tightened.

[Brief description of the drawings]

FIG. 1 is a plan view showing an installation mode of a joint formwork device of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged view of a part of FIG. 1;

FIG. 4 is an exploded perspective view of an L-shaped bracket and a Z-shaped bracket in the joint formwork device of the present invention.

[Explanation of symbols]

1: PC column, 2: PC beam, 3: joint, 4: joint formwork device, 5: L-shaped fitting, 6: Z-shaped fitting, 7: screw, 8: bolt, 9: long nut, 10: piece, 11: piece, 12: slot,
13: flange, 14: flange, 15: screw hole, 1
6: conjugate, 17: web, 18: conjugate.

Claims (1)

[Utility model registration claims] 1. The length of the beam is equal to the length of the PC beam, and
An L-shaped bracket having a long slot on each side at appropriate intervals in the longitudinal direction of one of the pieces, and one of two flanges extending in the opposite direction, the length of which is equal to that of the PC beam. Z-shaped fittings each having a screw hole at a position corresponding to the slot of the L-shaped fitting, a plurality of screws for connecting the L-shaped fitting and the Z-shaped fitting, the L-shaped fitting and the Z-shaped fitting. A joint between a PC column and a PC beam, comprising a plurality of sets of bolts and long nuts for detachably attaching a joined body with a metal fitting to one side of a joint at a joint between a PC column and a PC beam. Joint formwork device.