JPS6217538Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the disclosure of an extremely innovative and effective girder frame consisting of freely assembleable alkali-resistant glass fiber reinforced concrete (hereinafter referred to as GRC) boards and engaging rods. be.

One of the anticipated main objectives of this invention is to provide a girder frame that is lightweight and extremely easy to assemble and handle, thereby eliminating the need for heavy machinery, shortening the construction period, and reducing construction costs. This is intended to make it possible to effectively reduce the

Next, one of the other main objectives anticipated in the present invention is to eliminate the need for formwork construction, and by omitting such formwork construction, it can be effectively expected to reduce construction costs and formwork material costs. This is what was put into place.

Furthermore, one of the other main objectives anticipated in the present invention is to avoid the generation of construction scraps and other waste by omitting the construction of formwork, and to meet the requirements for waste disposal. This was designed to eliminate the cost of cleaning and removal.

Next, one of the other main purposes anticipated in the present invention is to avoid discomfort by having the same material characteristics as the building frame, so that the aesthetic appearance can be effectively guaranteed. The aim is to make it possible to apply gun blowing and other suitable exterior finishing techniques in conjunction with eggplant.

Furthermore, one of the other main objects envisaged in the present invention is the precise installation of girders in a planned construction simply by adjusting the girth width with an intervening sleeve. By making it possible to change the width on the fly, it is possible to completely eliminate the waste of preparing girder frames having various width dimensions.

Furthermore, one of the other main objectives anticipated in the present invention is to simultaneously shorten the curing period and simplify the curing method, and to
This is done so that the necessary and sufficient girth strength can be created.

The various other purposes anticipated in the present invention will be made clear in turn through the following explanations, and the present invention will achieve appropriate and purposeful effects of these characteristics. The gist of its structure is a pair of alkali-resistant glass fiber-reinforced concrete boards each having an arbitrary rectangular shape and having engaging grooves facing upward and downward at a plurality of arbitrary positions on the inner surfaces facing each other. , which is placed on a frame consisting of an engaging rod whose free ends are engaged with the grooves of the boards installed opposite each other, and which are connected to each other. Considerable design changes are planned.

The details of the present invention will be explained below with reference to a typical embodiment shown in the drawings. Reference numerals 1 and 1' are GRC boards, and the width dimensions, installation strength, wall thickness dimensions, etc. of the girders that are usually used are explained below. It is provided by cutting and supplying a determined amount of glass fiber into short pieces, for example, by forming a mold using a spray suction, and the pair of boards 1 and 1' are symmetrical. This aims to reduce the molding cost, avoid inconvenience during use, and simplify assembly.

The reason why the board 1 was made of GRC material was to make the board 1 thinner, and it was also necessary to have the desired strength, excellent molding characteristics, and a good processed surface. This material was considered to be the most suitable material in terms of its compatibility with poured concrete.

Therefore, ribs 1a to 1 are provided on the inner surface of the board 1 in the vertical direction at positions facing each other with the intention of reinforcing it and improving the bite of the poured concrete.
a is raised, and engagement grooves 1b to 1b with an enlarged diameter on the inside are provided along the rib 1a, and engagement grooves 1b to 1b with an enlarged diameter on the inside are provided at the left and right ends, and engagement grooves 1b to 1b are provided at the left and right ends to engage with the ends of other boards successively connected. The boards 1 and 1 are fitted together to form male and female stepped portions 1c to 1c, and the engagement plates 2a of the engagement rods 2 are fitted into the grooves 1b so as to be vertically slidable.
1' are connected to form a frame.

The engaging rod 2 used for such connection is the board 1,
The connecting width of 1' can be freely set, and the length can be adjusted freely by dividing the screw rod 2b into two parts, one with a counterclockwise screw and the other with a right turn, and this is the same. A sleeve 2c having a reverse female screw hole is connected to the sleeve 2c so that the length can be adjusted.

Ideally, the engaging rod 2 is installed separately in the upper and lower parts of the board 1, and the engaging plate 2a of the engaging rod 2 is inserted into and engaged with the upper part of the board 1.
The upper edge is bent slightly outward to form an engaging edge flange 2a', which is engaged with the upper edge of the board 1.

After loading blocks 3 to 3, etc., and placing magsa 4, etc. across the opening thereof, the girder frame of the present invention is placed, and this is adjusted to match the width dimension of block 3 or magsa 4. At the same time, using the lower engaging rod 2 as a pillow, first arrange the horizontal stripes 5, then contact the lower surface of the upper engaging rod 2, use this as a contact stop, and further arrange the horizontal strips 5, and further arrange the hoop. Concrete is poured and cured by wrapping the reinforcements 6 and connecting the vertical reinforcements 7 thereto.

Incidentally, such a girder structure can be used as an alternative to other similar magsa frames, foundation formwork frames, etc., and the same effects can be achieved.

The present invention has a unique structure as described above, in particular, it uses a thinner and lighter GRC board, and the installation width as a girder can be freely adjusted. This is what we expected.
In other words, the inconveniences of conventional formwork construction are solved in one step, and this is used as a permanent discarded formwork directly on the outer surface of the frame, eliminating all the time and cost of formwork construction, construction materials, curing, demolding. In addition to eliminating the inconveniences associated with P/C materials, especially the operation of heavy machinery required during construction, it also effectively creates the same strength of poured concrete as in formwork construction. That's what I got.

As described above, the girder frame of the present application is lightweight and easy to handle, and the use of GRC allows the board to be made thinner, and the board is provided with ribs that bulge out. Since it is relatively easy to cut, it is possible to cut freely on site, for example, to match the width of the loading block, and by adjusting the engaging rod 2, the girder frame can be matched to the loading block one by one. This eliminates the inconvenience of preparing a new product and eliminates the need for complicated surface finishing treatments in the event of discrepancies, promising a significant reduction in construction costs.

Furthermore, by forming a frame that can be assembled freely, it is possible to effectively reduce manufacturing costs as well as transportation and storage costs.

Therefore, the various properties described above depend largely on the fact that the material is GRC material, and at the same time, it also has other properties that GRC material has, such as excellent weather resistance, heat resistance, fire resistance, etc., and does not cause cracks etc. It promises excellent surface properties.

[Brief explanation of the drawing]

Fig. 1 is a partially exploded perspective view showing a typical embodiment of the present invention, Fig. 2 is a perspective view of the engaging rod, Fig. 3 is a sectional view showing the assembled state, and Fig. 4 is a plan view of the same. , FIG. 5 shows a front view. In the figure, 1... board, 2... engaging rod, 3...
Block, 4... Magusa, 5... Horizontal stripe, 6... Hoop stripe, 7... Vertical stripe.

Claims (1)

[Scope of utility model registration request] A pair of arbitrarily rectangular and cuttable thin-walled alkali-resistant glass fiber-reinforced concrete boards placed opposite each other on a loading block are engaged with the other boards in contact with the left and right ends. In addition to providing a stepped portion, ribs are provided vertically at arbitrary locations on the opposing inner surfaces, and engagement grooves with an enlarged diameter on the inside are provided along the ribs in opposing rows, and the length can be adjusted. An engaging rod having engaging plates provided at both ends of a freely movable screw rod is placed in the lower part of the opposing grooves so that the lower edge of the engaging plate engages the upper edge of the block wall. The upper part of the concave groove is fitted with an engaging plate having an engaging edge flange whose upper edge is bent slightly outward at both ends of the screw rod. A frame for girders characterized by being loosely fitted so as to rest on the upper edge.