JPH0523630Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a concrete wall corner skin used in constructing an embankment structure.

[Conventional technology]

In constructing embankment structures, a construction method is used in which the front surface of the embankment is covered with a concrete skin and an earth structure with a vertical slope is constructed.

This construction method involves arranging concrete skins and stacking them one on top of the other, connecting the top, bottom, left and right skins with joints, connecting a band-shaped strip to the back side of each skin, and burying the strip in the embankment. By using the frictional force that acts between the strip and the soil particles, the earth pressure generated in the embankment is converted into the tensile force of the strip, and an apparent adhesive force is added to construct a stable self-supporting earth retaining force. be.

By the way, in construction using the embankment method using a concrete skin as described above, a corner portion occurs on the wall surface due to bending or the gathering of two surfaces.

Conventionally, when treating corners, special corner skins were manufactured each time according to the angle of the corner on site.

[The problem that the idea aims to solve]

As described above, the method of producing corner skins for each angle on site requires a lot of work to produce the corner skins, and it is difficult to accommodate even slight differences in angles on site, making it less versatile and resulting in a lot of waste.

Therefore, the object of this invention is to provide a wall corner skin for an embankment structure that is versatile and economical and can accommodate a wide range of changes in corner angles with a single structure.

[Means to solve the problem]

In order to solve the above problems, this invention provides a joint for linear connection on one side of the skin body formed in a rectangular shape, and a corner joint whose outer surface has an arc shape on the other side of the skin body. The corner joint has a rotational connection portion provided on the central axis of the arcuate outer surface of the corner joint.

[Effect]

By overlapping the corner joint of the other skin body with the corner joint provided on the side of the skin body and connecting both corner joints with the rotation connection part, the angle of both skin bodies can be changed around the rotation connection part, allowing installation according to the local angle. can be done.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in Figures 1 to 3, the corner skin 1
The skin main body 2 is formed of concrete into a vertically elongated rectangular shape, and has a joint 3 for linear connection on one side, and a corner joint 4 on the other side.

The skin body 2 has a connecting strip 6 protruding from its back side for connecting the strip 5, and the height of the joints 3 and 4 on both sides is 1/2 of the height of the skin body 2. set to dimensions,
It is provided in a protruding manner on the skin body 2 so that stepped portions of equal length are formed vertically on both sides of the skin body 2.

The joint 3 for linear connection has a shaft 7 protruding from its upper and lower end surfaces so that it can be connected to a skin for forming a wall surface.

The corner joint 4 is formed in a substantially semicircular cross-sectional shape in which the outer surface continuous from the outer surface of the skin body 2 extends in an arc shape toward the back side of the skin body 2, and the corner joint 4 has a circular cross section at the radial center position of the arcuate outer surface. A dynamic connection 8 is provided.

The rotation connecting portion 8 is formed of a vertical pipe 9 buried along the vertical axis of the corner joint 4 and a connecting shaft 10 inserted into the vertical pipe 9.

The counterpart corner skin to be connected to the corner skin 1 may be a corner skin having the same structure as above, inverted vertically, and used in a phase in which the joints 3 and 4 on both sides are arranged in opposite directions. In this case, the corner skin 1 is divided into two halves at the center of the vertical height dimension, and the upper half corner skin 1a and the lower half corner skin 1b are combined to have the same shape and structure as vertically inverted parts. An example of the configuration is shown.

Therefore, the upper and lower half corner skins 1a and 1b
is the skin body 2a, 2 for the corner skin 1.
b, straight connection joints 3a, 3b, and corner joints 4a, 4b are 1/2 the height,
In addition, the upper and lower opposing surfaces are flat surfaces, and structural parts similar to those of the corner skin 1 will be designated by the same reference numerals and will not be described further.

The corner skin 1 and the upper and lower half corner skins 1
A and 1b can be connected by sandwiching the corner joint 4 of the corner skin 1 between the corner joints 4a and 4b of the upper and lower half-split corner skins 1a and 1b, and inserting the connecting shaft 10 into the vertical pipe 9 of each joint. The connection angle between the skin 1 and the upper and lower half-split corner skins 1a and 1b is variable around the connection axis 10.

The wall structure skin 11 is made of concrete and is formed into a rectangular shape with the same height as the skin body 2 of the corner skin 1, as shown in FIGS. 3 and 6, and has linear connections on both sides thereof. A joint 12 for the purpose of
A shaft fitting hole is provided on the upper and lower end surfaces of 2, and the structure is such that a strip can be connected to the back side.

7 and 8 show examples of different shapes of the corner skin 1 and the wall surface forming skin 11, and FIG. 7 shows contradictory upper and lower positions on both sides of the rectangular skin body. It has a shape with a joint protruding from the top.

Further, FIG. 8 shows a shape in which joints are provided protruding from either the upper half or the lower half on both sides of the rectangular skin body.

The corner skin of this invention has the above-mentioned structure, and the method of constructing the embankment structure will be explained next.

First, a concrete foundation is formed on the wall component of the embankment structure, and then the wall component skins 11 are lined up on this foundation, and a connected strip is laid on the back of each wall component skin, and the embankment material is applied to the skin. Spread it out parallel to the surface and compact it.

Each time the wall-forming skins 11 are stacked upward and connected at joints, the above-described laying of the strips and unloading and compaction of the embankment material are repeated.

The corner portion of the wall surface is constructed using the corner skin 1 shown in FIG. 1 and the upper and lower half-split corner skins 1a and 1b.

First, install the lower half corner skin 1b, then attach the corner skin 1 to each other's corner joints 4, 4.
The upper half corner skins 1a are placed on top of the lower half corner skins 1b, and the corner joints 4a, 4, 4 are placed so that they overlap with each other.
The connecting shaft 10 is inserted into the vertical pipe 9 of b to connect the corner skin 1 and the upper and lower half corner skins 1a and 1b, and the strip 5 connected to the back surface of the corner skin 1 and the upper and lower half corner skins 1a and 1b. The embankment is compacted at the same time as it is laid on top of the embankment.

Corner skin 1 above and upper and lower half corner skin 1
a and 1b become one set, and this set is stacked upward one after another, and the corner joints 4, 4a, and 4b are connected by the connecting shaft 10, and connected to the adjacent wall skin 11 by the straight connection joint 3. .

A set of corner skins 1 and upper and lower half-split corner skins 1a and 1b constituting the wall surface of the corner portion are as follows:
The angle is variable around the connecting shaft 10, and FIG. 2 shows the case of an inside corner portion, and FIG. 3 shows the case of an out corner portion.

In this way, the planar angle of the set of corner skins 1 and the upper and lower half corner skins 1a and 1b can be freely set within the range of 90° to 270°, for example.
A single structure can accommodate a wide range of angle conditions.

Figure 6 shows the completed state of construction of the embankment structure, and the protruding corners of the walls will be finished in an arc shape.

〔effect〕

As described above, according to this invention, a corner joint with an arcuate outer surface is connected to the side surface of the skin body, and a rotational connection part is provided on the central axis of the arcuate outer surface of this corner joint. The corner skin connected with can be set at any angle around the rotation connection,
It is possible to treat the external and internal corners of the walls of embankment structures with a single corner skin.
Excellent versatility as it can accommodate various corner angles.
The construction cost of an embankment structure can be reduced.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of the wall corner skin according to this invention, Figures 2 and 3 are plan views from different angles showing the same connected state, and Figure 4 is a longitudinal section along the arrow - in Figure 3. 5 is a vertical sectional view taken along the arrow - in FIG. 3, FIG. 6 is a perspective view showing the state of wall construction of the embankment structure, and FIGS. 7 and 8 are wall corner skins and wall configurations. FIG. 7 is a front view showing another example of the skin. 1...Corner skin, 2, 2a, 2b...Skin body, 3, 3a, 3b...Joint for straight connection, 4, 4a, 4b...Corner joint, 8
... Rotating connection part, 9 ... Vertical pipe, 10 ... Connection shaft.

Claims (1)

[Scope of utility model registration request] A joint for linear connection is provided on one side of the skin body formed in a rectangular shape, and a corner joint whose outer surface is arcuate is connected to the other side of the skin body, and the center of the arcuate outer surface of the corner joint is provided. Wall corner skin of an embankment structure with a pivot connection on the axis.