JPH03247861A - Frame of latticed girder foundation - Google Patents

Abstract

PURPOSE:To strengthen an assembled frame, by arranging upper and lower mesh face plates at the lower part of a latticed girder on the levelling concrete in parallel and confrontation with each other and arranging the first-the third receiving metal blocks at the upper and lower ends of the mesh face plate and the latticed girder, etc., to support them. CONSTITUTION:A latticed girder 4 is erected via a leg 3 on a levelling concrete 2 and a lower mesh face plate 5 and a upper mesh face plate 6 are arranged in parallel with each other and in confrontation with each other at both sides of the lower part of the beam 4. The bottom end of the lower mesh face plate 5 is supported at both ends of the first receiving metal block 9 placed on the levelling concrete 2 to span both lower mesh face plates and also the second receiving metal 10 is placed between the beam 4 and the upper end of the lower face plate 5 of both sides to support the upper end of the lower face plate 5. And the bottom end of the upper face plate 6 is supported on the second receiving metal block 10 and the third receiving metal block 11 is arranged to support the upper end of the face plate 6. In this way, frames can be easily assembled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a formwork for a lattice beam foundation for forming a lattice foundation in which a lattice beam is embedded in concrete.

[Conventional technology 1 The formwork of the conventional lattice beam foundation is made of chestnut stone 1 as shown in Figure 4.
A lattice beam 4 is erected on the upper concrete 2 through legs 3, and wooden weir plates 5' are installed on both sides above the concrete 2.
are erected, and wooden panels 6' are erected on both sides of the lattice beam 4 above the wooden weir board 5', and the interval between the pair of wooden panels 6' is maintained by a separator 7. Concrete 8 is poured into the formwork assembled in this manner, and after the concrete 8 hardens, the wooden weir board 5' and the wooden panel 6' are removed and dismantled.

[Problems to be Solved by the Invention] In such a conventional example, when the formwork is assembled, the wooden weir board 5' and the wooden panel 6' must be supported by passing a large number of supporting materials across the frame. It takes a lot of time to assemble the formwork, and the wooden dam plate 5' is not installed after forming the lattice beam foundation.
There is a problem in that the wooden panel 6' must be removed and dismantled, and dismantling also requires a lot of work.

The present invention has been made in view of the above points, and an object of the present invention is to provide a formwork for a lattice beam foundation that can be easily assembled and does not require much effort to dismantle. be.

[Means for Solving the Problem] In order to achieve the above object, the formwork for the lattice beam foundation of the present invention has the following features:
A lattice beam 4 is erected on the sacrificial concrete 2, and a lower mesh face plate 5 and an upper mesh face plate 6 are placed on both sides of the lower part of the lattice beam 4 so as to face each other in parallel. The lower end of the lower mesh face plate 5 is supported on both ends of the first receiving metal fitting 9 placed on the concrete 2 so as to span between the lattice beam 4 and the lower parts 7721 on both sides.
A second support fitting 10 is installed between the upper end of the face plate 5 to support the upper end of the lower mesh face plate 5, and the lower end of the upper mesh face plate 6 is supported by the second support fitting 10, and a 3 support fittings 11 were installed to support the upper end of the upper mesh face plate 6.

[For cattle 1 First receiving metal fitting 9, second receiving metal fitting 10 and third receiving metal fitting 1
1, the lower mesh face plate 5 and upper mesh face plate 6 can be easily supported, and the formwork for the lattice beam foundation can be easily assembled. The face plate 6 is integrated with the foundation, eliminating the need for disassembly.

[Embodiment 1] The first receiving metal fitting 9 is formed into an elongated strip shape as shown in Figure 3 (&), and lower mesh face plate fitting portions 9a are provided at both ends of the first receiving metal fitting 9. As shown in FIG. 3(b), the second receiving fitting 10 is also formed into an elongated strip shape, and one end of the second receiving fitting 10 is provided with a lower mesh face plate fitting part 10a, and a lattice beam fitting is provided at the other end. A fitting portion 10b is provided, and the second receiving metal fitting 10 is provided with an upper mesh face plate fitting portion 10c. As shown in FIG. 3(c), the third receiving fitting 11 is also formed in the shape of an elongated strip, and upper mesh face plate fitting portions 11 are provided at both ends of the third receiving fitting 11. a, and the third
A lattice beam locking portion 11b is provided at the center of the receiving metal fitting 11. A formwork for a lattice beam foundation is assembled as follows using the first receiving metal fitting 9, the second receiving metal fitting 10, and the third receiving metal fitting 11 configured in this way. A lattice beam 4 is erected on the sacrificial concrete 2 on the chestnut stone 1 via legs 3, and a first support is placed on the sacrificial concrete 2! 4:9
is mounted, and the center of the first receiving metal fitting 9 is fixed with a fixing tool 14. A lower mesh face plate 5 is erected on the sacrificial concrete 2 on both sides of the lower reinforcing bar 13, and the lower end of the lower mesh face plate 5 is fitted into the lower mesh face plate fitting portions 9a on both sides of the first receiving metal fitting 9.

A second receiving metal fitting 10 is installed between the lattice beam 4 and the lower mesh face plate 5, and the lower mesh face plate fitting portion 1 (la) at one end of the second receiving metal fitting 9 is fitted to the upper end of the lower mesh face plate 5. , lattice beam fitting portion 10b at the other end of the second receiving fitting 9
is fitted to the lattice beam 4. Upper mesh face plates 6 are arranged on both sides of the lattice beam 4 on this second receiving fitting 10,
The lower end of the upper mesh face plate 6 is the upper mesh face plate fitting part 1
It is fitted to 0c. A third receiving metal fitting 11 is installed between the upper mesh face plates 6, and upper mesh face plate fitting portions 11. a is fitted to the upper end of the upper mesh face plate 6, and the lattice beam locking portion 11. b is locked to the lattice beam 4. Like this! After assembling the formwork for the lattice beam foundation as shown in Figure F+1, concrete is poured to form the lattice beam foundation.

The lower mesh face plate 5 and the upper mesh face plate 6, the first
The receiving metal fittings 9, the second receiving metal fittings 10, and the third receiving metal fittings 11 are buried in concrete and do not need to be removed, so there is no need for disassembly.

[Effects of the Invention] Since the present invention is configured as described, the formwork can be assembled by supporting the lower mesh face plate and the upper mesh face plate using the first receiving metal fitting, the second receiving metal fitting, and the third receiving metal fitting. It is possible to assemble the formwork easily and firmly.
Moreover, since the lower mesh face plate and the upper mesh face plate are used, there is no need to remove them later (and it does not take much time to dismantle, unlike those that use wooden templates).

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, and FIGS. 3 (a), (b), and (c) are perspective views of the first to third receiving fittings of the above, FIG. 4 is a sectional view of a conventional example, in which 2 is concrete, 4 is a lattice beam, 5 is a lower mesh face plate, 6 is an upper mesh face plate, 9 is a first receiving metal fitting, 10 is a second receiving metal fitting, 11 is the third receiving metal fitting.

Claims (1)

[Claims] [1] A lattice beam is erected on top of the sacrificial concrete, and a lower mesh face plate and an upper mesh face plate are placed on both sides of the lower part of the lattice beam so as to face each other in parallel, and span between the lower mesh face plates on both sides. The lower ends of the lower mesh face plate are supported on both ends of the first support metal fittings placed on the concrete, and the second support metal fittings are installed between the lattice beam and the upper ends of the lower mesh face plates on both sides. A formwork for a lattice beam foundation comprising supporting the upper end of the upper mesh face plate, supporting the lower end of the upper mesh face plate on a second receiving metal fitting, and supporting the upper end of the upper mesh face plate by installing a third receiving metal fitting between the upper mesh face plates.