JP3228470B2 - How to install the formwork of the seismic slitting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation method for fixing a seismic slit to be buried in a column of a concrete wall to a wall formwork during concrete form work before concrete placement in the construction of a concrete structure.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a method of mounting an earthquake-resistant slit is to fix one of joint materials to be attached to both ends of a slit material to the inside of a wall form by nailing at the time of formwork. A slit material is attached to the joint material, and a support arm, which is attached to an appropriate position of the separator and attached to maintain a space between the wall forms, is attached and fixed to a backing plate attached to one side of the slit material. Next, the other wall form in which the joint material to be attached to the other of the slit members is nailed at a predetermined position inside is previously erected so that the slit material and the joint material can be attached, and the wall mold is formed. It was attached to the frame. Also, as in Japanese Patent Application Laid-Open No. 08-93266, a predetermined strength is provided by attaching a reinforcing material to the slit material, and the supporting materials attached to both ends of the slit material are sandwiched between the wall forms and attached. Things are also disclosed.

[0003]

However, in each of the above-mentioned conventional methods, the seismic slitting device must be installed inside the wall form before the wall forms on both sides are built. Must be carried out in parallel with the formwork work, and the time for the work of attaching the formwork is limited. That is, for example, if the user forgets to attach the quake-resistant slit device, or if there is no object itself, the wall formwork cannot be built until the attachment, and the operation may be delayed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to form a wall after a wall form has been built, that is, by building wall forms on both sides. Even if the space to be closed is closed, before installing the concrete, inside the double-sided formwork, at the position near the specified pillar, a mounting method that can reliably and accurately install the seismic slitting device. To provide.

[0005] As means for this, in claim 1, the seismic slitting device which is fixed by attaching the joint material to both ends of the slit material and the longitudinal direction is placed at a predetermined position on the pillar side from the upper opening of the built-in wall formwork. After the joints are installed such that the end side surfaces thereof are along the inner surface of the wall form, a plurality of fixing nails are appropriately spaced from the outside of one of the wall forms along the mounting position of the slit device. In addition, the slit device installed between the wall forms, the method of hitting and fixing so as to penetrate the other wall form, in claim 2, from the outside of at least one wall form after building, Temporarily fasten a plurality of fixing nails so that the tips protrude inside the wall formwork at appropriate intervals along the mounting position of the earthquake-resistant slit device, and attach the joint material at both ends of the slit material, longitudinal direction. Fixed slit device From the upper opening of the wall form, fixed nails that are continuous on the upper and lower straight lines, installed so that one joint material of the slit device is along, again, from the outside of the wall form, these fixed nails The slit device installed between the wall forms and the method of hitting and fixing so as to penetrate the other wall form are described in claim 3. A slit device in which a plurality of fixing nails are temporarily fixed so that the tips protrude inside the wall formwork at appropriate intervals along the mounting position, and joint materials are attached to both ends of the slit material and the longitudinal direction and fixed. Is installed from the upper opening of the wall form to the fixed nails continuing on the vertical straight line so that one joint material of the slit device is along the nail, and the fixed nails are beaten from outside the wall form. Fix one joint material, Square Another locking nail from the outside of the wall formwork, the plurality of striking at appropriate intervals along the mounting position of the slit device, features a method of fixing the other joint member.

According to the method of the first, second and third aspects of the present invention, the seismic slitting device can be attached to a predetermined position on the inside of both wall forms and near the pillars after the wall form is built. It is not necessary to perform the mounting work in parallel with the framing work, and it is not affected by the work process. In addition, the present invention solves the above-mentioned conventional problems, such as accurate and reliable installation with only a simple nailing operation.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. First, a description will be given of a seismic slit device common to the embodiments described below. FIG. 1 is a perspective view showing an earthquake-resistant slit device. Reference numeral 11 denotes a slit material, which is made of a material, such as a foamed synthetic resin material or a synthetic resin material, which is weaker than the breaking strength of concrete, and has an appropriate strength which is not deformed by the lateral pressure of concrete cast into a wall form. It is formed in a plate shape having thickness, width and length. Reference numeral 12 denotes a joint material integrally formed of a synthetic resin material. The joint material 12 has a concave groove-shaped joint portion 15 on the front surface side, and is formed on the rear surface side along one end of the one end of the slit material 11 along the vertical direction. A fitting portion that can be fitted is formed. Reference numeral 13 is also a joint material similar to 12, but has a flat surface on the front side. 2
The type of joint material can be selected by a desired combination. That is, it can be selected according to design and structural design requirements. Further, as shown in FIG. 6, the slit material 11 can be joined, and a slit material excellent in fire resistance performance, formed by a joining member 19 holding the refractory material 18 at the center can be combined.

Next, an embodiment of the present invention will be described. FIG.
FIG. 2 is a plan explanatory view showing an embodiment according to claim 1 of the present invention. After assembling the wall arrangement A and installing the wall forms B and C, the seismic slitting apparatus 10 to which the joint members 12 and 13 are attached and fixed in advance at both ends of the slit member 11 and the longitudinal direction, respectively, is attached to the wall form B , C downward. At that time, joint material 1 at both ends
The seismic slitting device 10 itself is mounted on the wall forms B,
It is installed so as to be vertically installed in C. Next, a plurality of fixed nails 20... Penetrate the seismic slitting device 10 and the other wall form C from outside the wall form B along the black line 30 previously written at the installation position of the slit apparatus. By hitting at appropriate intervals as described above, the earthquake-resistant slit device 10 can be attached to the wall formwork.

FIG. 3 is an explanatory plan view showing an embodiment according to the second aspect of the present invention. After assembling the wall arrangement A and setting up the wall forms B and C, the black line 30 previously written on the outside of the wall form B and at the installation position of the seismic slitting device.
A plurality of fixing nails 20 are temporarily fixed at appropriate intervals so that the tips protrude inside the wall form B. Next, the grooved joint portion 15 of the joint material 12 is arranged along the fixing nails 20 temporarily fixed in the vertical direction of the wall form B in a linearly continuous state, that is, the fixing nails 20. Are guided downward from the upper openings of the wall forms B and C, and are installed vertically. Finally, fixed nails 20 temporarily fixed
By hitting so that the slits penetrate the seismic slit device 10 and the other wall form C, the seismic slit device 10 can be attached to the wall form.

FIG. 4 is an explanatory plan view showing an embodiment according to the third aspect of the present invention. After assembling the wall reinforcement A and erection of the wall forms B and C, the tip ends inside the wall form B along the black line 30 previously written on the outside of the wall form B and the installation position of the seismic slitting device. Are temporarily fixed at appropriate intervals so as to protrude therefrom. Next, the grooved joint portion 1 of the joint material 12 is temporarily fixed to the fixed nails 20 in a vertically continuous state in the vertical direction of the wall form B.
5 are dropped along the upper openings of the wall forms B and C with the fixing nails 20... As guides, and are installed vertically. Finally, the temporarily fixed fixing nails 20 are struck to fix one joint material 12, and another fixing nail 25 is attached from the outside of the wall form C.
By hitting a plurality of pieces at appropriate intervals along the mounting position of the earthquake-resistant slit device 10 and fixing the other joint material 13, the earthquake-resistant slit device can be attached to the wall form.

[0011]

As described above in detail, according to the method for mounting the seismic slit of the present invention, after the seismic slit device is installed on the wall form, the inside of the double-sided form and the predetermined position between the pillars are determined. Can be installed at the position, so that there is no need to perform the installation work in parallel with the formwork work, and the work process is not affected. That is, the work can be reliably performed without delay. In addition, since a simple nailing operation can be performed with high accuracy and reliability, the workability can be improved, and a practically effective method of mounting the formwork of the seismic slitting device can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an earthquake-resistant slit device.

FIG. 2 is an explanatory plan view showing an embodiment of the present invention.

FIG. 3 is an explanatory plan view showing an embodiment of the present invention.

FIG. 4 is an explanatory plan view showing an embodiment of the present invention.

FIG. 5 is an explanatory plan view showing a conventional example.

FIG. 6 is a plan view showing another earthquake-resistant slit device.

[Explanation of symbols]

 10 Seismic slitting device 11 Slit material 12, 13 Joint material 20, 25 Fixed nail B, C Wall form

Claims (3)

(57) [Claims] 1. A seismic slitting device in which the joint material is fixed at both ends of the slit material and in the longitudinal direction is fixed at a predetermined position near the pillar from the upper opening of the built-in wall formwork. After setting the side surfaces along the inner surface of the wall form respectively, a plurality of fixing nails are appropriately spaced from the outside of one of the wall forms along the mounting position of the slit device, and the wall form is formed. A method of mounting a form of a seismic slit, wherein the form is installed by striking and fixing the slit device installed between the frames and the other wall form. 2. A plurality of fixing members are provided at appropriate intervals from the outside of at least one of the wall forms after being built along the mounting position of the earthquake-resistant slit device, and the tips protrude inside the wall form. The nail device is temporarily fixed, and both ends of the slit material, the joint device is attached and fixed in the longitudinal direction, and the slit device is fixed to the nail. The joint material is set along the joint, and the fixing nails are again fixed by hitting the fixing nails from the outside of the wall form so as to penetrate the slit device installed between the wall forms and the other wall form. How to attach the form of the seismic slit. 3. A plurality of fixing means so as to be appropriately spaced from the outside of at least one of the wall forms after being built and along the mounting position of the seismic slitting device, and that the tips protrude inside the wall form. The nail device is temporarily fixed, and both ends of the slit material, the joint device is attached and fixed in the longitudinal direction, and the slit device is fixed to the nail. Install the joints so that the joints are along the way, and nail the fixing nails from the outside of the wall form to fix one joint, and attach another fixing nail from the outside of the other wall form to the slit device. A method for attaching a formwork for a seismic slit, comprising: hitting a plurality of pieces at appropriate intervals along a position to fix the other joint material.