JPH0663232B2 - Method and apparatus for joining Yamadome steel - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method of joining a ridge, a beam or the like of a mountain retaining structure with a shaped steel and a device therefor.

[Prior Art] In the support work of Yamadome, the abutment or connection of the H-shaped steel, which is placed on the wall surface and serves as the bearing surface member, is provided with bolt holes at both ends in advance as shown in Fig. 25. An end plate was used in which the end plate was welded and a bolt hole was also formed in the flange surface, and bolting or connection between the cover plate and the end plate was performed at the time of arrangement at the site. Further, as shown in FIG. 24, the above-mentioned joining or connection is also performed on the cross beam and the standing column made of H-shaped steel for supporting the uprising.
Recently, from the economical point of view, the above processing has been omitted, H-shaped steel raw material is used as it is, and a reinforcing plate (patch) is applied to the joint to join by field welding. It takes a lot of time and effort.

In particular, it is easy to place a horizontal member on the upper end of the vertical pillar and to support it in a T-shaped horizontal member, but if the horizontal members and the middle of the vertical pillar are joined in the same plane, the construction of the joint is not easy as described above. It did not exist (Japanese Patent Publication No. 58-2307).

[Problems to be Solved by the Invention] The present invention has the same horizontal cross section steel and vertical column shape steel middle without pre-processing and without on-site welding of shaped steels used for uprising, beam, vertical column, etc. The purpose is to construct a highly safe Yamadome structure that is fast, convenient, and strong bonded in a plane.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a mountain retaining structure in which a reinforced member made of a shaped steel is brought into contact with the front of the earth retaining member made of a sheet pile, and the reinforced member is supported by a beam of the shaped steel member. In the construction of the object, the end face of the horizontal section steel is abutted against another horizontal section steel and joined,
The joint portion is inserted into the groove at a right angle to the ∧-shaped annular blade provided on the tip end surface of the screw rod screwed into the groove of the groove-shaped metal fitting, and the screw rod is screwed into the groove so that the surface of the joint portion is Joining method of yamadome shaped steel characterized by connecting the above shaped steels by biting an annular blade. Joining method of yamadome shaped steel according to the above invention, including series joining of horizontally oriented shaped steels. Joining method of Yamadome shape steel according to the first or second invention, including cross-joining of shaped steels The first including the joining portion and a series joining portion of vertical column shaped steels,
Joining method for yamadome shaped steel according to the second or third invention: A grooved metal fitting has an intersecting groove, and an opposite threaded rod which is screwed from the outside toward one groove, and is screwed from the outside to the other groove. And a unidirectional screw rod, and each of these screw rods is provided with a ∧-shaped annular blade on the tip end face thereof.

"Action" Therefore, the end faces 1 ', 1'of the laterally oriented steels 1, 1 are made to face each other and abut against each other (Figs. 1, 3, 5 to 10), and the end face 1 of the laterally oriented steel 1 is made. ′ And the side surface 1 ″ of the other horizontally oriented steel 1 are opposed and cross-joined (see FIGS. 14, 15, and 17 to 17).
23), the upper end surface of the vertical column steel 6 is made to face the lower end surface of the vertical column steel 6 in opposition to each other, and these joints 2 are inserted into the groove 3 ′ of the channel metal fitting 3 to Groove 3'from the outside of 3
The surface of the joint part 2 is sandwiched by the tip surfaces of the screw rods 4 and 4 which are screwed toward the inside of the blade. At that time, the ∧-shaped annular blades 5 and 5 provided on the tip faces of the screw rods 4 and 4 are joined. The above-mentioned shaped steels 1 and 1 in the horizontal direction and the vertical column shaped steels 6 and 6 are connected to each other in the same plane, which are bite into the surface of the portion 2 at a right angle.

When the groove 3'of the groove-shaped metal fitting 3 is used for the joint portion 2 in the series direction, the linear shape is used, and when used for the joint portion 2 in the cross direction, the groove metal fitting 3 having the grooves 3 ', 3 "is used. It is used, and on one of the intersecting grooves 3 ′ and 3 ″, the opposing screw rod 4,
4 on both sides of the joint 2 and on the other hand a unidirectional screw rod 4 '.
Presses one surface of the joint part 2 with the ∧-shaped annular blade 5,
5 is consumed (Figs. 14 to 18 and 2
0 to 23).

"Example" A horizontal re-entrant a made of H-shaped transverse shaped steels 1 and 1 is brought into contact with the front of the earth retaining rod made of steel sheet pile 7, and the re-entrant a is made to be H-shaped transversely shaped steel 1,
1 is supported by a cross beam b, and the middle side surface of the cross beam b is supported on the middle side surface of the H-shaped vertical column steel 6 by a lateral arm and a walking stick to construct a mountain retaining structure. (Fig. 24). The horizontal section steels 1 and 1 of the uprising a are arranged laterally, and the side surfaces 1 ″ of the section steel 1 are butt-joined to the end faces 1 ′ of the horizontal section steels 1 and 1 of the cross beam b to form the double section steels 1, 1 is arranged in the same horizontal plane, and the joint 2 or the flanges 1a, 1a of the shaped steels 1, 1 or the web 1b is arranged at the 14th position.
As shown in FIG. 18 to FIG.
3 ″, the flanges 1a and 1a are pressed by the opposing screw rods 4 and 4 and the one-way screw rod 4 ′, and the ∧-shaped annular blade 5 is inserted into the flanges 1a and 1a so that T A plurality of horizontal section steels 1 and 1 of the cross beam b are connected in series in the same horizontal plane, and are shown in FIGS. 1, 3, and 5 to 10. As shown, the end faces 1 ′, 1 ′ are abutted and joined, the joint 2 is inserted into the straight groove 3 ′ of the grooved metal fitting 3, and the opposed screw rods 4, 4 are directed from the outside of the metal fitting 3 into the groove 3 ′. And the ∧-shaped annular blade 5 can be bitten into the surfaces of the flanges 1a, 1a of the joint 2 to connect the shaped steels 1, 1 in the same horizontal plane in the serial direction. Steels 6 and 6 are in the same upright plane in the series direction, and the upper and lower end faces abut against each other, and
The joint portion 2 in the vertical direction is formed by rotating the drawings and FIGS. 5 to 10 by 90 degrees, and FIGS.
As shown in FIG. 3, the H-section steel 1 of the riser a and the H-section steel 1 of the cross beam b are obliquely joined to each other, and
As shown in FIG. 0, the oblique joint portion 2 is formed by the grooved metal fitting 3 of the straight groove 3'and the opposed screw rods 4 and 4, and as shown in FIG. 22, the grooved metal fitting 3 of the oblique groove 3 ', 3 ". The opposing screw rods 4, 4 and the one-way screw rod 4'press the flange 1a of the joint portion 2 to allow the ∧-shaped annular blade 5 to bite into them so that they can be connected in the same horizontal plane. The channel-shaped metal fitting 3 is used for the joint portion 2 (FIGS. 14 to 18 and 20 to 23) intersecting in the same horizontal plane, but as shown in FIG. 9 to FIG. Also in No. 1, it is preferable to use it for strengthening the joint of the lower flanges 1a, 1a.

"Effects of the invention" Since the present invention is based on the above-mentioned method, the re-entrant a made of shaped steel is brought into contact with the front of the earth retaining member by the sheet pile 7, and the re-entrant a is supported by the cross beam b made of shaped steel and the standing column is formed. In the construction of mountain retaining structures formed from shaped steels, these shaped steels can be easily connected in series or in cross directions in the same horizontal plane without the need for preforming or field welding these shaped steels.

In addition, the above-mentioned vertical columns can be easily connected in the same vertical direction in the series direction, and a highly safe mountain retaining structure can be constructed simply and quickly.

Further, since the present invention is based on the above-mentioned device, there is an effect that the joints of the shaped steels 1 and 1 intersecting in the same horizontal plane can be simply and strongly connected.

[Brief description of drawings]

FIG. 1 is a front view showing a joined state by a channel metal fitting used in the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a front view of another embodiment of FIG. 1, and FIG. FIG. 3 is a side view, FIG. 5 is a plan view of a joint portion, FIG. 6 is a front view of FIG. 5, FIG. 7 is a plan view of another embodiment of FIG. 5, and FIG. Front view of the figure,
FIG. 9 is a plan view of another embodiment of FIG. 7, and FIG.
FIG. 11 is a front view, FIG. 11 is a side view of FIG. 9, FIG. 12 is a front view of a channel fitting, FIG. 13 is an end view of FIG. 12 seen from the right side, and FIG. Fig. 15 is a plan view of the part
4 is a side view of FIG. 4, FIG. 16 is a side view of the channel fitting, FIG. 17 is a side view of another embodiment of FIG. 15, and FIG. 18 is a plan view of another embodiment of FIG. Figure 19 is a plan view of the flint, second
Fig. 0 is a plan view of an oblique joint, Fig. 21 is an enlarged front view of Fig. 20, Fig. 22 is a plan view of another embodiment of Fig. 20, and Fig. 23 is an enlarged side view of Fig. 22. FIG. 24 is a perspective view of a conventional earth retaining steel, and FIG. 25 is a perspective view of a conventional upholstery. DESCRIPTION OF SYMBOLS 1 ... Lateral shaped steel, 1 '... End surface, 2 ... Joining part, 3 ... Channel metal fitting, 3 ... 3' ... Groove 4, 4 '... Screw rod, 5 ... ∧ annular blade, 6 ... Vertical column steel.

Claims (5)

[Claims] Claim: What is claimed is: 1. In constructing a mountain retaining structure in which a reinforced member made of a shaped steel is brought into contact with the front of an earth retaining member made of sheet pile, and the reinforced member is supported by a cut beam made of a shaped steel, the end face of the horizontally oriented steel is changed to another horizontally oriented shape. Join the steel by abutting it, and insert the joint into the groove at right angles to the ∧ annular blade provided on the tip surface of the screw threaded into the groove of the grooved metal fitting, and screw the screw into the groove. Then, the annular steel is made to bite into the surface of the joined portion and the shaped steel is connected to the joining portion. 2. The joint includes a series joint of horizontal section steels.
(1) The method of joining Yamadome steel as described above. 3. The joint comprises a transverse joint of transverse section steel.
(1) or (2) the method of joining steel retaining steel. 4. The method of joining yamadome shaped steel according to claim 1, wherein the joining portion and a series joining portion of vertical column steels are included. 5. A groove-shaped metal fitting having an intersecting groove, an opposing screw rod which is screwed from the outside toward one groove, and a one-way screw rod which is screwed from the outside to the other groove, and these screw rods are provided. Welding device for Yamadome shaped steel, each of which has a ∧ shaped circular blade on its tip.