JPH0369427B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a structure between a sheet pile attached to an H steel driven into soil, etc., and a formwork set at a predetermined distance from the sheet pile. This invention relates to an H-steel fastener that clamps and holds the lower part to the H-steel to maintain a predetermined interval and further tightens and holds the formwork in the upper part when pouring concrete.

[Prior art] Conventionally, this type of H steel fastener was manufactured using
The one disclosed in No. 15964 was known. The device disclosed in Utility Model Publication No. 52-15964 has a connecting rod fixed to one piece of the L-shaped fitting almost perpendicularly to the other piece, and a leaf spring arranged parallel to the other piece of the L-shaped fitting. The leaf spring is formed by fixing one end of the leaf spring to one piece of the L-shaped fitting.

[Problems to be Solved by the Invention] The above-mentioned conventional fasteners are used in civil engineering work when installing formwork before pouring concrete. In order to prevent rotation of the separator and to integrally fix the stopper to the formwork, the separator and the connecting rod are manually fixed by welding or using screw locking material. This not only results in poor work efficiency, but also requires time and effort when installing the stoppers and adjusting the separator, which is made up of fully threaded bolts.In addition, when it rains or where there is water leakage, the stoppers cannot be used in the formwork. There was a problem that it was not possible to fix it.

The present invention was made in view of this problem, and it is possible to securely hold the lower part of the board between the flanges of H steel with a predetermined wall thickness, and to visually check the screw insertion depth of the fully threaded bolt using a scale. The purpose of the present invention is to provide an H-steel fastener that can be adjusted to prevent rotation, and can also fix a fully threaded bolt screwed to a predetermined depth without the need for welding or thread locking material. do.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a gap in the lower part of the board that can be held by the flange of the H steel, so that the base plate and the clamping piece can be attached to the board. The board is protruded at right angles to the board, and is forcibly pressed into the flange of the H steel by hitting it with a hammer or the like so that it can be tightly fitted and held, and a scale is displayed in the longitudinal direction of the board on the clamping piece. In addition, the upper part of the board is bent into an inverted U shape to provide a connecting part, and the connecting part is located at the center of the upper plate and the lower plate. Screw holes into which all screw bolts are screwed are bored on the vertical axis of the upper plate, and notches are provided on both ends of the upper plate on the horizontal axis from which the screw holes protrude. By hitting the part with a hammer etc., bend it from the weaker notch part, and insert the entire threaded bolt into the threaded hole in the upper plate.
Constructed to prevent rotation of the fully threaded bolt.

[Function] According to the present invention having the above configuration, the gap between the base plate and the clamping piece is forcefully and tightly fitted into the flange by simply hitting the base plate from the lower back with a hammer or the like, and the clamping piece is held tightly. The thread insertion depth of the fully threaded bolt can be adjusted by accurately visualizing the scale, and when the fully threaded bolt reaches the specified depth after adjustment, the tip of the upper plate of the connecting part is struck with a hammer, etc. By bending the upper plate, the screw holes in the upper plate are inserted into all the threaded bolts, thereby preventing the rotation of all the threaded bolts.

[Example] An example of the implementation of the present invention will be described in detail with reference to the drawings. A base plate 2 is bent at right angles to one side of the lower bottom of a substrate 1 made of a rectangular steel plate, and A punching piece 3 is punched out into a rectangular shape from the lower part of 1, leaving the bottom side, and is bent to one side so as to be parallel to the base plate 2 to form a clamping piece 4, and the base plate 2 and the clamping piece 4 are A gap 5 of a constant height is provided between the two, and a scale 6 is displayed on one side of the substrate 1 on the clamping piece 4 in the longitudinal direction. By manufacturing a plurality of widths of the gap 5 to match the wall thickness of the flange 16 of the standardized H steel 14, which will be described later, all H steels 14 can be accommodated.

Then, the upper part of the substrate 1 is bent to one side into an inverted U shape to provide a connecting part 9 having a horizontal upper plate 7 and a lower plate 8, and the upper plate 7 and the lower plate of the connecting part 9 are provided. Screw holes 10 and 11 are respectively drilled on the vertical axis of the central part of 8, and the screw hole 10 is drilled in the upper plate 7.
Notches 12 and 1 are provided at the edges of the upper plate 7 on both sides of the
2' is provided. In addition, the tip portion 13 of the upper plate 7
Although there is no need to specifically limit the angle, it is recommended that the angle be slightly tilted upward.

To explain the function of the embodiment, as shown in FIG.
After setting the sheet pile 15 in the gap 5, insert the H steel 14
The flange 16 of the H steel 14 is pressed against the base plate 1, and the back of the board 1 is struck with a hammer or the like, so that the flange 16 of the H steel 14 is press-fitted into the gap 5 between the base plate 2 and the clamping piece 4, and the flange 16 of the H steel 14 is tightly fitted. A cap screw 18 is provided into which the base end of the fully threaded bolt 17 can be screwed in from the base end side, and a screw thread 2 is provided at the center of the vertical end face 19.
An adjustment tool 22 is formed by protruding a bolt 21 having a circumference of 0, and the base end of the fully threaded bolt 17 is screwed into the cap screw 18 of the adjustment tool 22, so that the base end surface is connected to the end of the cap screw 18. The front end of the fully threaded bolt 17 is screwed through into the screw holes 10 and 11, respectively, and the depth of the screw insertion is determined by measuring the position of the tip edge 17' of the fully threaded bolt 17 using the scale 6. Adjustment is made by reading the width of the concrete C cast from the sheet pile 15 set in advance and the length from the bottom of the base plate 2 to the tip surface 19 of the adjustment tool 22. Then, when these dimensions match, the tip end 13 of the connecting part 9 is struck with a hammer or the like to prevent the entire threaded bolt 17 from rotating again and its dimensions becoming out of order. Because the strength of the hole 10 part is weakened, the screw hole 1
The upper plate 7 is bent from the 0 portion, and the screw hole 10 portion strongly bites into the circumferential surface of the full screw bolt 17, preventing the rotation of the full screw bolt 17, and the end face of the adjuster 22 is bent from the bottom of the base plate 2. The length dimension up to 19 is fixed. Thereafter, the casting width of the concrete C is automatically set by inserting the formwork 23 through the bolts 21 and bringing the inner wall of the formwork 23 into close contact with the tip surface 19 of the adjustment tool 22. And formwork 23
From the outside wall side, vertical pipe material 24, horizontal pipe material 25
The formwork 2 is connected vertically and horizontally, and the formwork 2 is passed through the horizontal pipe material 25 and attached to the front part of the home tie bolt 26.
It is firmly fixed by screwing in the bolt 21 that protrudes from 3.

After the casting width of the concrete C is set as described above, the concrete C is placed between the sheet pile 15 and the formwork 23.
After hardening, the home tie bolts 26, vertical pipe material 24, horizontal pipe material 25, and formwork 23 are removed, and the H steel 14 is pulled upward by a crane or the like. In this case, flange 1 of H steel 14
6, the base plate 2 and the clamping piece 4 are tightly fitted,
Since it is not fixed, it can be easily removed.

[Effects of the Invention] Since the present invention is as described above, all H steels can be used by manufacturing a stopper with a gap of a width that matches the wall thickness of the H steel flange specified in advance in the standard. It can be attached to the H steel flange by hitting the lower back bottom of the board with a hammer, the stopper is forcibly pressed into the flange and held tightly, and all the threaded bolts are attached to each Insert a through screw into the screw hole and rotate it appropriately while checking the scale visually to adjust the depth of screw insertion. When the fixed position of all screw bolts is set at the predetermined scale position, simply tighten the tip of the upper plate. By hitting with a hammer, etc., the upper plate is bent from the notch, the screw hole bites into all the screw bolts, and all the screw bolts are securely fixed in that position without rotating, and then the formwork is attached. As long as you get into the process,
There is no need for welding or the use of screw locking materials as in the past, and it can be installed even during rain or water leakage, resulting in lower costs and shorter construction times.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Figure 1 is an overall perspective view, Figure 2 is a cross-sectional view showing the construction state,
FIG. 3 is an enlarged cross-sectional view showing the attached state of the formwork. In the figure, 1 is a substrate, 2 is a base plate, 4 is a clamping piece,
5 is the gap, 6 is the scale, 7 is the upper plate, 8 is the lower plate,
9 is a connecting part, 10 and 11 are screw holes, 12 and 12'
1 is a notch, and 17 is a fully threaded bolt.

Claims (1)

[Claims] 1. A base plate and a clamping piece are respectively protruded in parallel to each other with a gap in the lower part of the board allowing the flange of the H steel to be tightly fitted, and a scale is displayed on the clamping piece in the longitudinal direction of the board, A connecting portion is provided by bending the upper portion of the substrate into an inverted U-shape, and screw holes are bored on the vertical axes of the central portions of the upper plate and the lower plate of the connecting portion, respectively. An H-steel fastening fitting characterized in that notches are provided at both ends of the upper plate on the horizontal axis, and a fully threaded bolt is screwed through each of the screw holes.