JPH0730581B2 - Installation method of driving beam formwork - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for installing a driving beam formwork for facilitating or simplifying automated construction of building production.

[Conventional technology]

Conventionally, the method of installing the beam formwork in building production is to first arrange the reinforcing bars around the column steel frame and the beam steel frame, install the column formwork made of plywood panel on the column steel frame, and then follow the beam steel frame. Assemble the beam form with thick plywood panels so as to form the desired beam shape, and strengthen the space between plywood panels and the outer periphery of the plywood panels with temporary materials such as wood and steel pipes, etc. The structure should be able to withstand swelling and deformation. Next, after arranging a large number of columns for supporting the weight of the poured concrete between the beam formwork and the floor, concrete is placed, and when curing of the concrete is completed, the plywood panel, temporary materials and columns are removed. Removed
On the next floor, the same work as above was repeated to produce beams.

[Problems to be solved by the invention]

Recently, automation and simplification of building production have become important issues, but in order to solve this issue, not only the entire system, but also simplification and standardization of construction methods for parts are important factors. ing.

In the above-mentioned conventional method, since the beam formwork is a plywood panel having a weak strength, various types and a large amount of temporary materials and reinforcing materials are required. It had the problem of requiring labor and time. In addition, a large number of columns are required to support the concrete cast in the beam formwork, and the space under the beams becomes a dead space. Also, much effort and time are required to dispose and remove these columns. It had a problem of cost.

The present invention is to solve the above problems, and an object of the present invention is to eliminate the need for temporary materials, reinforcements, struts, etc., simplify the installation method of beam formwork, and make it applicable to automated construction. It is a thing.

[Means for solving problems]

Therefore, in the installation method of the driven beam formwork of the present invention, the driven beam formwork is provided with position adjusting means with respect to the beam steel frame, and the height of the lower surface of the driven beam formwork is increased by the position adjusting means. It is characterized in that the driving beam formwork is temporarily fixed to the beam steel frame at a position higher than the height, the column formwork is installed, and then the driving beam formwork is lowered by the position adjusting means to be engaged with the column formwork. It is a thing.

[Action]

First, the driving beam formwork is temporarily fixed at a position higher than the height of the column formwork, and after the column formwork is installed, the driving beam formwork is lowered and engaged with the column formwork.

〔Example〕

 Hereinafter, embodiments will be described with reference to the drawings.

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG.
FIG. 3 is a plan view of a main part of the drawing, FIG. 3 is a view for explaining the installation order of the beam form according to the present invention, and FIG. 4 is a side view of the main part of FIG.

In the drawing, 1 is a column steel frame, 2 is a beam mounting bracket, 3 is a beam steel frame, 4, 5 is a reinforcing bar, 6 is a driven column formwork, 7 is a driven beam formwork, 8 and 15 are stepped parts, 16 is a guide rebar , 17 is an adjustment bolt,
Reference numeral 18 indicates a temporary mounting metal fitting.

In FIG. 1, a beam mounting bracket 2 is welded and fixed to four side surfaces of a pillar steel frame 1 (only two surfaces are shown in the drawing), and a beam steel frame 3 is welded and fixed to the bracket 2. Reinforcing bars 4 and 5 are arranged on the outer peripheries of the pillar steel frame 1 and the beam steel frame 3, respectively, and further, on the outer peripheries thereof, a reinforced concrete driven column form 6 and a driven beam form 7 made of reinforced concrete are installed in advance in a factory. . The shapes of the driving column mold 6 and the driving beam mold 7 are formed in a substantially U-shaped cross section, and a step portion 8 is formed at one end of the driving column mold 6 to form two driving column molds 6. It is installed and fitted around the pillar steel frame 1 and the driving pillar formwork 6 and the driving pillar formwork 6 and the floor surface are fixed by an appropriate means.

On the other hand, stepped portions 15 that engage with the stepped portions 8 of the driven column formwork 6 are formed at both ends of the driven beam formwork 7, and a plurality of guide reinforcing bars 16 are formed so as to project in an L shape. A position adjusting means A capable of adjusting the height position of the driving beam form frame 7 can be attached to the upper surface of the driving beam form frame 7, and a temporary mounting metal fitting 18 having an adjusting bolt 17 is driven by the bolt. It can be attached to the beam form 7.

The dimensions of these pillars and driven beam forms 6, 7 are, for example, second
As shown in the figure, the width dimension W of the driving beam formwork 7a, 7b in one direction is equal to that of the driving column formwork 6, while the driving beam formwork 7a,
The width dimension of the driving beam formwork 7c, 7d adjacent to 7b is W-2D (D
It is formed so as to have a thickness of the driving beam form frame 7).

Next, the installation procedure of the driving beam formwork will be described with reference to FIGS. 3 and 4, and after reinforcing bars are arranged around the column steel frame 1 and the beam steel frame 2,
The driving beam formwork 7 is hoisted by a crane or the like, and when the beam steel frame 2 is located in the driving beam formwork 7, the temporary mounting metal fitting 18 is attached to the driving beam formwork 7. At this time, the adjusting bolt 17 is screwed to the maximum as shown in FIG. 3, so when the driving beam form 7 is removed from the crane, the tip of the adjusting port 17 comes into contact with the beam steel frame 2 and Height of lower end surface of frame 7
h ₁ is at a position higher than the height h ₂ of the driving column formwork 6.

The driving column form 6 is arranged around the column steel frame 1, and the driving column form 6 and the driving column form 6 and the floor surface are fixed by appropriate means.

When the adjusting bolt 17 is loosened and the driving beam form 7 is lowered, the driving beam form 7 is guided by the guide rebar 16, and the step portion 8 of the driving column form 6 and the step portion 15 of the driving beam form 7 are separated from each other. Abuttingly engaged.

A slab concrete formwork is laid, slab reinforcement is performed, and concrete is poured. The weight of the concrete filled in the driving beam formwork 7 is supported by the step portion 8 of the driving column formwork 6.

The present invention is not limited to the above embodiment,
Of course, various modifications are possible.

For example, in the above-mentioned embodiment, a reinforced concrete formwork is adopted as the pillar formwork, but the pillar formwork may be formed of a plywood panel and a temporary material for fixing the plywood panel that is commonly used in the past. The object and effect of the present invention are not impaired at all.

Further, in the above embodiment, the step portion 8 is provided at one end of the driving column form 6, but the step portion 8 is not formed, and only the step 15 of the driving beam form 7 is attached to the driving column form. May be combined.

〔The invention's effect〕

As is clear from the above description, according to the present invention, the following effects are exhibited.

(A) The temporary material, the reinforcing material, and the pillar as in the past are not required, and the material cost can be reduced, and the labor and time required for disposing or removing the temporary material, the reinforcing material, and the pillar can be saved.

(B) Since the columns of the beam form are unnecessary, the space under the beam is widened, and various operations can be performed.

(C) Since the beam formwork is left as it is without being removed, the surface of the beam is beautiful and the exterior finish is easy.

(D) Since the cast-in beam formwork can be produced in a factory in advance, the formwork can be standardized, and the installation method of the beam formwork can be simplified and applied to mechanization.

[Brief description of drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG.
FIG. 3 is a plan view of a main part of the drawing, FIG. 3 is a view for explaining the installation order of the beam form according to the present invention, and FIG. 4 is a side view of the main part of FIG. 1 ... Column steel frame, 2 ... Beam mounting bracket, 3 ... Beam steel frame, 6
… Driving column formwork, 7… Driving beam formwork, 8, 15… Step part, 16
… Guide rebar, 17… Adjusting bolt, 18… Temporary mounting bracket.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 999999999 Sato Industry Co., Ltd. 1-11 Sakuragicho, Toyama City, Toyama Prefecture (71) Applicant 999999999 Shimizu Corporation 2-16-1 Kyobashi, Chuo-ku, Tokyo (71) ) Applicant 999999999 Taisei Corporation 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo (71) Applicant 999999999 Takenaka Corporation Ltd. 4-27, Honmachi, Higashi-ku, Osaka-shi, Osaka (71) Applicant 999999999 Toda Construction Co., Ltd. Company 1-7-1, Kyobashi, Chuo-ku, Tokyo (71) Applicant 999999999 Fujita Co., Ltd. 4-6-115 Sendagaya, Shibuya-ku, Tokyo (71) Applicant 999999999 2-chome Akasaka, Minato-ku, Tokyo 999999999 No. 6 (71) Applicant 999999999 Hitachi Zosen Corporation 1-6-14 Edobori, Nishi-ku, Osaka-shi, Osaka (72) Inventor Yukio Hasegawa Tokyo 3-4-1 Okubo, Shinjuku-ku, Research Institute for Systems Science, Waseda University (72) Inventor Yasuo Inoue 3-543, Shibaencho, Kawaguchi City, Saitama Prefecture (543) Kazuhiko Arai 2-9-16 Nakamachi, Urawa City, Saitama Prefecture (72) Inventor Yusuke Matsushita Lions Mansion Kagurazaka No. 3-102, 16 Tsukiji-cho, Shinjuku-ku, Tokyo (72) Inventor Shinji Yamashita 91-1 Mita, Atsugi-shi, Kanagawa Prefecture (72) Nobuhiro Okuyama Setagaya-ku, Tokyo 1-20-8 Shirota Shimizu Construction Dormitory (72) Inventor Akira Tsubota 2-5-14 Minamisuna, Koto-ku, Tokyo Inside the Takenaka Corporation Technical Research Institute (72) Inventor Masato Mori Kohoku-ku, Yokohama-shi, Kanagawa No. 246, Machi (72) Inventor Toru Shinozaki 24 Shimogido, Shimotsuma-shi, Ibaraki (72) Inventor Ryoji Yoshitake 1521-93 Nogayacho, Machida-shi, Tokyo (72) Inventor Shu Takeda 18 Manda, Hiratsuka-shi, Kanagawa Prefecture Hiratsuka Dormitory No. 311 (72) Inventor Kazuo Kunio 1-6-14 Edobori, Nishi-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd.

Claims (5)

[Claims] 1. A driving beam formwork is provided with a position adjusting means with respect to a beam steel frame, and by the position adjusting means, the lower surface of the driving beam formwork is at a position higher than the height of a pillar formwork. Is temporarily fixed to the beam steel frame, a column formwork is installed, and then the driving beam formwork is lowered by the position adjusting means to be engaged with the column formwork. 2. The installation method for a driven beam formwork according to claim 1, wherein the pillar formwork is a driven pillar formwork. 3. The method for installing a driving beam form according to claim 1, wherein a guide member for engaging with the column form is provided on the driving beam form. 4. The step form is provided at the end of the driving beam form, and the column form and the driving beam form are engaged with each other by the step. The method for installing a driving beam formwork according to item 3 or item 3. 5. The position adjusting means has an adjusting bolt capable of contacting the beam steel frame.
Item 5. A method for installing a driving beam formwork according to any one of items 4 to 4.