JPS6126424Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a steel flexible frame having a sloped surface.

Recently, the steel flexible frame developed by the present applicant has been used in civil engineering works such as earth retaining walls, retaining walls, sea walls, and erosion control dams, as well as stream construction works, and has been well received.

The steel flexible frame has horizontal and vertical H as shown in Figure 1.
A vertical rod 1 made of shaped steel, horizontal rods 2 made of H-shaped steel at the front and bottom,
It consists of horizontal bars 3 made of H-beam steel on the left and right, top and bottom, and the horizontal bars 3 are rigidly connected and fixed to the front and rear vertical bars 1, and the horizontal bars 2
is the upper surface of a cubic frame 5 which is rotatably connected to the left and right vertical rods 1 via a connecting plate 4, and has flexibility so that it can be displaced in a parallelogram relationship as shown by the two-dot chain line. A screen material 6 is stretched over each surface except for. The steel flexible frame 7 having such a structure is constructed by filling the inside with stones 8 of a size that does not pass through the screen material 6, as shown in FIG. 2, and arranging and stacking them as appropriate during the civil engineering work or stream construction work. It is used to construct various structures such as earth retention walls, retaining walls, sea walls, erosion control dams, etc. Its features are: 1. It is easy to assemble with low requirements for the foundation ground.

2. Be able to adapt to changes in construction size and topography.

3. Because the unit parts are lightweight, it is easy to transport on-site.

etc.

By the way, mountainside, mountain roads, erosion control dams, embankments,
The steel frames used to prevent the collapse of soil and sand due to erosion on sloping surfaces such as riverbanks are positioned on the inner and outer surfaces of the steel frames, and as shown in Figure 3, have their front surfaces formed as inclined surfaces, i.e., slopes, at a required angle. In order to stack and connect steel frames 7' having such slopes, conventionally, as shown in the figure, the connecting plates 4 of the connecting parts are extended upward or downward to serve as connecting plates for the upper or lower steel frames 7', and their upper and lower ends are bent and inclined to connect the upper and lower ends of the vertical rods 1 on the left and right sides of the front surface to the bent and inclined parts of the connecting plates 4, and the upper and lower ends of the front screen material 6 are bent and pin-connected to the upper and lower horizontal rods 2 on the front surface.

However, the steel flexible frame 7' having such a slope
In the stacked and connected structure, when actually stacked, the stress due to the live load concentrates on the upper and lower bent inclined parts of the connecting plate 4 and the bent parts at the upper and lower ends of the screen material 6, causing deformation. 'It is extremely dangerous to build tall structures by stacking them in multiple tiers because the overall strength is insufficient and must be avoided. In particular, when the steel flexible frame 7' displaces in a parallelogram relationship in response to ground movement, the screen material 6 on the slope also tends to displace in a parallelogram relationship, so the upper and lower ends of the screen material 6 are bent. As a result, an excessive load is applied to the pin pivot portion of the screen material 6, resulting in damage. Therefore, the steel flexible frames 7 having no slope as shown in FIG. 1 had to be stacked in a stepwise manner, which not only required a lot of work but also required more steel members than necessary.

The present invention was made to solve this problem, and instead of connecting the vertical bars using the upper and lower bending slopes of the connecting plate, it is possible to stack and connect the upper and lower steel flexible frames by directly connecting the vertical bars. At the same time, pedestals with vertical surfaces are provided at appropriate intervals in the vertical direction of the vertical bars on the left and right sides of the slope, and multiple screen materials are bolted horizontally through the pedestals and rotated vertically. A method that improves the strength of the entire flexible steel frame when stacked and connected, and allows it to smoothly shift and follow the parallelogram relationship in response to ground fluctuations without any hindrance. It is an object of the present invention to provide a steel flexible frame having a surface.

An embodiment of the steel flexible frame having a slope according to the present invention will be described below with reference to FIG. 4. 1' is a vertical rod made of H-shaped steel inclined at a required angle on the left and right front sides;
1″ is a vertical rod made of vertical H-shaped steel on the rear left and right,
Brackets 1a are fixed to the upper and lower ends of the vertical rods 1' and 1'' on both front and rear sides, facing each other, and a horizontal rod 3' made of channel steel is installed between the brackets 1a to form a trapezoidal frame 9. This trapezoidal frame 9
are arranged parallel to each other left and right with a required spacing, and a horizontal rod 2' made of channel steel is connected between the upper and lower ends of the rear vertical rods 1'' by bolts and nuts.
The front upper and lower horizontal rods 2' are arranged between the vertical surfaces of a bracket 10' having vertical surfaces fixed opposite to the inner surfaces of both upper and lower ends of the left and right inclined vertical rods 1'. They are connected with bolts and nuts and can be rotated vertically. Mounts 10 having vertical surfaces are fixed at regular intervals in the vertical direction on the inner surface of the front left and right inclined longitudinal bars 1', and a screen made of angle material is installed on the vertical surface of each of the left and right supports 10. The side surfaces of both ends of the screen material 6' are abutted and bolted together, and the screen material 6' is stretched between the left and right longitudinal rods 1' which are inclined so as to be rotatable in the vertical direction. 1
Reference numeral 1 designates a brace installed between a bracket 1a at the upper end of the vertical rod 1' and a bracket 1a at the lower end of the vertical rod 1''.A screen material 6' is horizontally attached to the bolts between the vertical rods 1'' on the left and right rear sides. Although it is stretched so that it can rotate in the vertical direction by joining, it is also possible to stretch the screen material vertically between the upper and lower rear horizontal rods 2' by bolting so that it can rotate in the left and right directions. . Similarly, screen materials may be provided horizontally or vertically on both the left and right sides. In any case, these screen materials are provided only when located on the outer surface of the structure to be built, and are omitted when located inside the structure.

The steel flexible frame 12 of the above embodiment has a sloped surface only on the front surface, but in the case of a steel flexible frame 12' where both the front and rear surfaces are sloped surfaces, the front side is sloped as shown in FIG. The left and right vertical bars 1', 1'' on the rear side are tilted symmetrically at a required angle, and a screen material 6 made of angle material is installed between the pedestals 10 of the left and right vertical bars 1', 1'' on the front and rear sides, respectively. It is preferable that the parts 1 and 2 are bolted to each other at regular intervals in the vertical direction so as to be rotatable in the vertical direction.

The steel flexible frame 12, 12' having a slope according to the present invention having such a structure has a vertical surface in which the screen material 6' of the slope is fixed to the inclined longitudinal bars 1' on the left and right sides of the front side at regular intervals. It is bolted between the pedestals 10 and can be rotated vertically, and the front horizontal rod 2
is connected to the left and right vertical rods 1' with bolts and nuts via brackets 10' fixed to the upper and lower ends thereof,
The rear horizontal rod 2 is connected with bolts and nuts between the left and right vertical rods 1", and each can be rotated in the vertical direction, so the steel flexible frames 12, 12' can be moved smoothly without any problems. As shown by the two-dot chain line in FIGS. 4 and 5, it can be displaced in a parallelogram relationship and has flexibility.

However, the steel flexible frame 12 having a slope according to the present invention,
12', for example, in order to construct a dam at a stream, a steel flexible frame 12 having a slope only on the front side as shown in Fig. 5 is assembled and installed on the surface of the excavated floor as shown in Fig. 6. The steel flexible frames 12 are connected sequentially in the transverse direction of the stream, and the steel flexible frames 12 are assembled and installed back to back on the rear side using the vertical vertical rods 1'' of each of the steel flexible frames 12. A small-sized steel flexible frame is similarly assembled on the frame 12, and the vertical rods 1', 1'' in the vertical direction are directly connected to each other via the connecting plate 4'. On top of the upper steel flexible frames assembled and installed back-to-back, a large steel flexible frame 12' having slopes on both the front and rear sides is assembled, and each vertical rod 1', 1'' in the vertical direction is directly attached to the frame 12'. They are connected via a connecting plate 4'.A smaller steel flexible frame with slopes on both the front and rear sides is assembled on top of each steel frame with slopes on both the front and rear sides, and each frame is directly connected in the vertical direction. The vertical rods 1' and 1'' are connected via a connecting plate 4'. In assembling this dam frame, the screen material 6' of each steel flexible frame located inside
is omitted. Also, the vertical rods 1′ adjacent to the left and right,
1'' may omit either the left or right vertical rods 1', 1'', and the vertically adjacent horizontal rods 2',
As for the horizontal rods 3', either the upper or lower horizontal rods 2' or 3' may be omitted.

The inside of this assembled dam frame is filled with stones 8 of a size that does not pass through the screen material 6, and the screen material is placed on the upper surface of each of the uppermost steel flexible frames in the left-right direction between the front and rear cross bars 2'. Stretch them at regular intervals. The bottom of the dam is then backfilled with earth and sand to stabilize it.

The steel flexible frames with slopes of the present invention stacked in stages on the dam constructed in this manner are directly abutted against each other with the vertical rods 1' and 1'' facing each other, and are connected through the flat connecting plate 4'. Since they are connected, the load on the upper steel flexible frame is equal to the vertical rod 1' of the lower steel flexible frame.
1". Therefore, the stress due to the loading load of the steel flexible frame is not concentrated on the connecting plate 4' and there is no deformation, so the constructed dam is stable and safe. Also, the dam is stable and safe. At this time, the steel flexible frame smoothly displaces and follows the parallelogram relationship without any hindrance, so the constructed dam is stable without collapsing.Moreover, this constructed dam directly connects the steel flexible frame to the steps. Because they are stacked and connected, the vertically adjacent horizontal rods 2' and 3' can be omitted, and the number of members can be significantly reduced compared to the case of the conventional steel flexible frame 7' with a slope, making assembly easier. Not only that, but the construction cost will be reduced.

As can be seen from the above explanation, the steel flexible frame with a slope in the present invention can be stacked and connected by directly connecting the vertical bars, and the screen material on the slope can be placed between the left and right vertical bars. Since it is horizontally stretched so that it can rotate in the vertical direction via a pedestal with a vertical surface, when it is actually stacked, there is no stress due to the loading load on the connecting plates of the vertical bars and screen materials as in the conventional case. There is no concentration or deformation. Therefore, the strength of the steel flexible frames when stacked is sufficient, and a stable and safe tall structure can be constructed. In addition, in the event of ground movement, the steel flexible frame with a slope of the present invention not only rotates on the vertical surface, but also the upper and lower horizontal rods of the slope are bolted to the left and right vertical rods, respectively. In addition, multiple screen materials are bolted horizontally to the left and right vertical rods at appropriate intervals on a vertical surface, making it possible to rotate vertically.
Multiple screen materials that are horizontal on the slope are bolted to pedestals with vertical surfaces that are fixed at appropriate intervals to the left and right sloping vertical rods, making them rotatable in the vertical direction. The frame can be smoothly displaced into a parallelogram relationship without any hindrance, and it can follow ground movements and is stable, so it is safe and will not collapse. Furthermore, since the flexible steel frames with sloped surfaces of the present invention can be directly stacked and connected, one of the vertically adjacent members can be omitted, making it easier to assemble the frame of the structure and reducing the cost of constructing the structure. There is an effect.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional steel flexible frame, Figure 2 is a perspective view showing the inside of the steel flexible frame filled with stones, and Figure 3 is a conventional steel flexible frame with a slope. FIG. 4 is a perspective view showing an embodiment of the steel flexible frame having a slope according to the present invention, FIG. 5 is a perspective view showing another embodiment, and FIG.
The figure is a side sectional view of a dam constructed using a steel flexible frame with a slope according to the present invention. 1', 1''...vertical rod, 1a...bracket, 2'
...Horizontal rod, 3'...Horizontal rod, 4'...Connecting plate, 6'
. . . Screen material, 9 .

Claims (1)

[Scope of utility model registration request] At least one of the vertical rods arranged on the front and rear sides is inclined, and the other vertical rod and its upper and lower ends are supplied with horizontal rods to form a trapezoidal frame, and this trapezoidal frame is made into a trapezoidal frame as required. A steel flexible frame arranged parallel to the left and right with an interval of In the case where the vertical rods of the left and right trapezoidal frames are vertical, a plurality of screen materials are connected horizontally with bolts at appropriate intervals in the vertical direction so as to be rotatable in the vertical direction,
For the left and right trapezoidal frames whose vertical bars are inclined, pedestals with vertical surfaces are provided at appropriate intervals in the vertical direction, and a plurality of screen materials are bolted horizontally through the pedestals. A steel flexible frame having a slope, characterized in that it is vertically rotatable.