JPH0333856B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method of constructing a slope using weir plates made of expanded metal.

Prior Art Conventionally, there is a slope construction method in which formwork is placed vertically and horizontally on a slope, mortar or concrete is cast, and structures are constructed in a lattice pattern to stabilize the slope.

Problems to be solved by this invention The problems in such a method of construction are as follows.
It is the intersection of vertical and horizontal structures. This is where the stress is most concentrated and the structure may be damaged.

Means for Solving the Problems The slope construction method according to the present invention involves placing a plurality of elongated formworks made of two parallel expanded metal sheets on a slope substantially parallel to each other, and placing the elongated formworks between the adjacent elongated formworks. A plurality of short formworks made of two pieces of expanded metal parallel to the direction intersecting the long formwork are placed at appropriate intervals, and the outsides of both the long and short formworks are placed so as to surround the joints between the long and short formworks. Continuous slabs are stretched between the sides, and mortar or concrete is poured into both the long and short formwork, and mortar or concrete is poured into the space between the continuous slabs and the sides of both forms to form corbels. be.

The corbels reinforce the joints of the vertical and horizontal structures.

Construction is easy because the short formwork is placed after the long formwork is placed.

Embodiment Hereinafter, the present invention will be explained in accordance with the construction order based on an embodiment shown in the drawings.

In the figure, A is a long formwork in which two expanded metal plates 1, 1, which serve as weir plates, are erected in parallel with an appropriate distance apart. The distance between the two expanded metals 1, 1 is maintained by a spacer, and the expanded metals 1, 1 are fixed on the slope by an anchor. A plurality of elongated forms A are placed approximately parallel to each other at appropriate intervals.

Between the adjacent long formworks A, A, a short formwork B made of two parallel expanded metal sheets 1, 1 is placed in a direction intersecting the long formworks A, A.
A plurality of short forms B are placed at appropriate intervals. The short formwork B also maintains the distance between the left and right expanded metals 1, 1 by spacers, and is fixed on the slope by anchors.

Reinforcing bars 2 are arranged in both the long and short formworks A and B along the longitudinal direction.

In order to form a haunch portion 4 at the joint between the long and short forms A and B, four continuous plates 3 made of expanded metal are placed so as to surround the joint from all sides. The continuous plate 3 shown in Figure 1 has both left and right ends.
Bent at 45 degrees, the ends are long formwork A and short formwork B
It is spanned along the sides of the formwork A and B in a direction intersecting with both formworks A and B. Reinforcing bars may be arranged in the space between the continuous version 3 and the sides of both the long and short formworks A and B, and connected to the reinforcing bars 2 in the formworks A and B. In the embodiment shown in the figure, no reinforcement is provided within the space. Serial version 3
Both ends overlap the expanded metals 1, 1 of both the long and short formworks A and B, but they may be bound at the overlapping portion, or they may simply be overlapped without being bound.

The continuous plate 3 may be bent in an arc shape as shown in FIG.

Mortar or concrete is poured into the long formwork A and the short formwork B as described above to construct a structure that is continuous in a lattice pattern vertically and horizontally.

Furthermore, mortar or concrete is placed in the space surrounded by the continuous plate 3 and the sides of both the long and short formworks A and B to construct the haunch portion 4.

Since the haunch portion 4 is constructed so as to surround the joint between the long and short formworks A and B from all sides, the cross-sectional area of the joint becomes large, resulting in a formwork that will not break even if stress is concentrated.

Effects of the Invention The present invention has the above configuration and can obtain the following effects.

○B Since haunches are formed to surround the joints of vertical and horizontal structures, they will not break even if the cross-sectional area of the joint becomes large and stress is concentrated.

○B Since the short formwork is placed between the long formwork, the formwork is continuous in at least one direction, and the rest only need to be placed with short formwork, making construction easier. .

○C Because expanded metal is used as a weir board and continuous plate, the iron wire does not come undone and fall apart like wire mesh such as clip wire mesh or metal lath, and it adheres and intertwines well with mortar or concrete. , it becomes a strong structure. That is, in the joint where the expanded metal overlaps, the mortar or concrete exerts a shearing effect, so the overlapping expanded metal exhibits a structural effect as if it were welded and continuous.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of the method for constructing a frame according to the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a sectional view taken along the - line in Fig. 2. FIG. 3 is a partial plan view of an embodiment of the invention. A... Long formwork, B... Short formwork, 1... Expanded metal, 3... Rebar, 3... Continuous version, 4
...Haunch club.

Claims (1)

[Claims] 1 A plurality of long formworks made of two parallel expanded metal sheets are placed substantially parallel on a slope, and two sheets parallel to the direction intersecting the long formworks are placed between the adjacent long formworks. A plurality of short formworks made of expanded metal of A method of constructing a frame that is characterized by casting mortar or concrete and also forming a haunch by placing mortar or concrete in the space between the continuous slab and the long and short formwork.