JPH0738376Y2 - Structure for reinforcing a flared flange having a flange - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a structure for reinforcing a rising flange made of steel having a flange.

[Prior art]

Conventionally, in mountain retaining work at a civil engineering construction site, the end faces of the cutting beams are connected at right angles to the uprising horizontally installed on the inner surface of the mountain retaining wall formed by connecting sheet piles and the like. . In addition, at the connecting portion between the uprising and the cutting beam, it is usual to connect the striking beam on both sides while maintaining a certain inclination angle. However, at such a contact portion between the uprising and the cutting beam or the striking beam, for example, as shown in FIG.
Axial load from the beam is applied to the flange of the shape steel. When such a load is locally applied to a part of the abdomen or when an excessive load is applied, a part of the abdomen is deformed particularly due to the load, that is, the lower flange is dented inward,
As a result, it may lead to a collapse accident of the frame, which may cause a significant hindrance to the construction. As a conventional technique for preventing the collapse of the uprising flange, an example in which a reinforcing rib or a stiffener is attached to the upper side of the uprising (Jitsuko Sho)
54-25285, see Fig. 3), and an example of inserting a box-shaped reinforcing block (Jitsuko Sho-55-31087).

[Problems of the prior art]

All of the above conventional ones are attached by a method of suspending and fixing a stiffener or a block between the upper surface flanges of the uprising from the upper side of the uprising, and is considerably used as a member for reinforcing the upper flange or the web of the uprising. Is effective. However, the lower side of the uprising, which is not reinforced at all, does not have sufficient strength to receive the axial force load coming from the main beam member. Therefore, the problem that the lower flange of the uprising is dented inward by the axial load cannot be solved yet. Therefore, there is a demand to attach ribs and stiffeners that are hung between the upper flanges of the uprising between the lower flanges of the uprising, but there is a problem that the workability in the installation is poor as described below, and it is still commercial. Has not yet been used. That is, in order to reinforce between the lower flanges of the uprising, it is first necessary to use a high scaffold or a crane to suspend the ribs or the stiff member on the lower side of the uprising in a high place work. In that case, the stiffeners and the ends of the beams must be positioned, and the stiffeners must be fixedly attached by welding so that they do not fall from the abdomen even when the beams are disassembled. Is bad. In addition, when attaching a stiffener or the like using a bolt, it is necessary to attach so that the load bearing surface of the axial load against which the end of the beam is abutted against the stiffener when the abdomen is raised, but in that case, It is necessary to align the main materials of the starting and cutting beams with the stiffener on-site. The alignment is extremely inefficient as follows. That is, it is necessary to use a special long bolt (a bolt having a long length under the neck) for fastening with the above three bolts. Then, at the time of fastening using this long bolt, it is necessary to set and sew up the uprising, the beam end portion and the stiffener member at the same time. Therefore, as usual,
Since it is not possible to set the uprising and the cutting beam first, it is troublesome and the construction is troublesome. Moreover, if the bolts are removed during dismantling of the beam, the stiffener or the like may fall, which is dangerous. For these reasons, the actual situation is that reinforcement between the lower flanges of the abdomen is not actually performed in most cases. In view of the problems of the prior art as described above, an object of the present invention is a flange that can be easily attached to the abdomen elevation or the upper flange (excellent in workability) and can prevent deformation of the abdomen elevation or the upper flange. An attempt is made to propose a reinforced structure using a reinforced metal. That is, according to the present invention, when the flange reinforcing metal member is fastened to the cut beam and the abutment portion using bolts, it is not necessary to align the metal member with each of the main members of the cut beam and the abdomen member. An object of the present invention is to provide a reinforced structure of an uprising flange that can be fastened with ordinary bolts only by aligning the metal and the uprising two-point core. Further, the present invention has a pair of flanges made of shaped steel, such as H-shaped steel and grooved steel, at not only the abutment points of the cut beam and the upset as described above but also the abutment points of the upset and the striking beam. Another object of the present invention is to propose a reinforced structure using a reinforced member made of a steel material and a reinforced metal which can be used at a contact point between a cut beam or a struck beam attached to a flange surface of the reinforced member.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides an upholstery made of a steel material with a pair of flanges such as H-shaped steel and grooved steel, a cut beam or a struck beam attached to the flange surface of the uprising, and the aforesaid A pair of flange-reinforcing metal pieces inserted and arranged between a pair of flanges, the flange-reinforcing metal pieces having a length corresponding to a dimension between the pair of flanges in the uprising; The end beam is fixed to both ends of the plate so as to be orthogonal to the end plate and has one or more bolt holes. The mounting end of the beam is brought into contact with each other, and the pair of flange-reinforcing metal parts are inserted so as to face each other between the pair of flanges of the uprising, and the load of the cutting beam or the striking beam in the uprising is inserted. Load bearing surface to receive , The rigid connecting plate in the flange reinforcing metal piece is arranged in a direction orthogonal to the load bearing surface, and the end plate in the flange reinforcing metal piece is arranged on the side deviating from the load bearing surface, and provided on the end plate. The present invention proposes a structure that reinforces a flange of the uprising, which has a flange formed by bolting the uprising and the reinforcing metal member through a bolt hole.

[Action]

In mountain retaining work, the mounting end of the cutting beam or stilt beam is held at a predetermined angle on the outside of a flared flange surface horizontally erected on the inner surface of the mountain retaining wall formed by connecting sheet piles and the like. After assembling the parts by abutting, the two sets of the flange-reinforcing hardware are inserted so as to face each other between the pair of flanges of the uprising, and the axial force of the cutting beam or the striking beam in the uprising. A rigid connecting plate of the flange reinforcing metal member is arranged in a load bearing surface that receives a load in a direction orthogonal to the load bearing surface. Further, an end plate of the flange reinforcing metal piece is arranged on a side deviating from the load bearing surface, and at a position avoiding a mounting position of a cutting beam or a striking beam through a bolt hole provided in the end plate, Easily align the upholstery and the reinforcing hardware and bolt them together. Therefore, it is not necessary to use a special long bolt. The axial force load from the cutting beam or the striking beam can be received by the rigid connecting plate in the flange-reinforcing metal piece arranged in the load bearing surface for receiving the load of the cutting beam or the striking beam in the above-mentioned uprising. It has sufficient strength to bear the load, and therefore can prevent deformation of the angulated flange surface due to the axial load.

【Example】

Next, the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view showing an example of a reinforcing metal piece used in the present invention, and FIG. 2 is a state in which the reinforcing metal piece of FIG. 3 shows a structure for reinforcing the flange of FIG. FIG. 3 is a sectional view of the same mounting state as above, and FIG. 4 is a rear view of the same mounting state as above. In FIGS. 1 and 2, reference numeral 1 is an upholstery made of H-shaped steel, 2
Is a cut beam that abuts the flange surface of the uprising 1 at a right angle,
3 is a flange of the uprising and 4 is a bolt hole formed in the upper and lower flanges of the uprising 1 at a predetermined pitch. 5
Is a flange-reinforcing metal member that can be inserted between the lower flanges of the uprising 1. This flange reinforcement hardware 5
As shown in FIG. 1, a pair of end plates 6 facing each other at both ends and a rigid connecting plate 7 connecting the both end plates are formed by using a steel material having a U-shaped cross section. Bolt holes 8 for joining to the uprising 1 are provided near the tip of the end plate 6 as described later. The flange-reinforcing hardware 5 is used as a set of two as shown in FIGS. That is, the openings are oriented so that the openings are on the outer side and are mounted symmetrically between the lower flanges of the uprising 1. When mounting, the rigid connecting plate 7 is subjected to the axial load of the cutting beam 2. It is arranged so as to be orthogonal to the load bearing surface within the projection range of the bearing surface A. As a result, the bolt holes 8 formed in the end plate 6 are positioned outside the load bearing surface A, in other words, on the side deviating from the load bearing surface (see FIGS. 2 and 4), and raised. The bolt holes 4 and the bolt holes 8 opened at a predetermined pitch on the upper and lower flanges of 1 are aligned with each other.
In this way, the flange-reinforcing metal member 5 is fixed to the bulge with the bolt 10. This bolt uses a bolt different from the bolt 9 that connects the uprising 1 and the girder 2 (see FIG. 3). As described above, the flange reinforcing metal used in the present invention is 2
Since it is made into a piece and bolted on the outer side of the load bearing surface A that receives the axial load of the cutting beam in the uprising, the construction is easy. In addition, the above example is an example in which a flange reinforcing metal fitting is attached between the abutment lower flanges at the abutment beam contact portion,
The method of use is not limited to the above example.
It can also be attached to the following locations shown in the figure. FIG. 5 shows an example in which two flange reinforcing metal pieces 5 of the present invention are attached as a set between the upper flange and the lower flange of the uprising striking beam abutting portion. In the figure, 1 is an abdomen and 11 is a stilt. The striking beam 11 is erected from both sides of the cutting beam 2 on the outer surface of the flange of the uprising 1 so as to maintain a predetermined inclination angle. Between the upper flanges of the uprising and between the lower flanges, the connecting plates 7 of the flange reinforcing metal 5 are arranged within the projection range of the striking beam contact surface (load bearing surface), and both end plates 6 are upset 1. Are joined so as to follow the flange surface of, and are fixed by bolts 12 at a position apart from the striking beam contact surface (load bearing surface). This bolt is a separate bolt from the connection bolt of the bait beam. In this way, the flange reinforcing metal member 5 of the present invention can be attached not only between the lower flanges of the uprising but also between the upper flanges. The flange-reinforcing metal 5 used in the present invention is not limited to the thin shape or the box-shaped shape shown in FIG. 1, but the connecting plate 7 is made of the angle steel as shown in FIG. 6 (A). The upper surface and one side surface can be formed in an open state, and the connecting plate 7 may be made of T-shaped steel as shown in FIG. 6B, and its sectional shape is not limited. Further, the number of bolt holes provided in the end plate 6 is not limited to one, and a plurality of bolt holes may be opened, and the shape of the hole may be a long hole extending in the lateral direction (not shown).

[Effect of device]

The structure according to the present invention comprises an abutment made of a steel material having a pair of flanges such as H-shaped steel and grooved steel, a cut beam or a struck beam attached to the flange surface of the abutment, and a pair of the aforesaid flanges. A pair of flange-reinforcing metal pieces inserted and arranged between the flange-reinforcing metal pieces, the flange-reinforcing metal piece having a length corresponding to the dimension between the pair of flanges in the uprising, and both ends of the connecting plate. And an end plate which is fixed to the portion so as to be orthogonal to the end plate and is provided with one or more bolt holes. A load that receives the load of a cutting beam or a bait beam in the uprising, with the end portions abutting, and the two sets of the flange-reinforcing metal objects being inserted so as to face each other between the pair of flanges of the uprising. On the bearing surface, The rigid connecting plate in the flange reinforcing metal piece is arranged in the direction orthogonal to the bearing surface, and the end plate in the flange reinforcing metal piece is arranged laterally away from the load bearing surface, and the bolt holes provided in the end plate are arranged. Since the uprising and the reinforcing metal member are configured to be bolted to each other, the two sets of the two flange reinforcing metal members are simple at a position avoiding the mounting position of the cutting beam or the striking beam. Since it can be bolted by centering (two-point centering), it is easy to install and can be assembled and disassembled by one person. Also, because no special long bolts are used, it is easy to manage members. According to the present invention, the axial force load from the cutting beam or the striking beam can be received by the rigid connecting plate in the flange-reinforcing metal piece arranged in the load bearing surface for receiving the load of the cutting beam or the striking beam in the uprising. Therefore, it has a sufficient strength to receive the axial load, and therefore, it is possible to prevent the flange surface of the uprising from being deformed by the axial load.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a flange reinforcing metal fitting used in the present invention, and FIG. 2 is a belly of the present invention with the reinforcing metal fitting shown in FIG. It shows a structure that reinforces the raised flange. FIG. 3 is a sectional view of the same mounting state as above, and FIG. 4 is a rear view of the same mounting state as above. FIG. 5 shows an example in which two flange-reinforcing hardwares of the present invention are attached as a set between the upper flanges and the lower flanges of the uprising striking beam abutting portion. 6 (A) and 6 (B) are perspective views showing a modified example of the reinforcing metal object, and FIG. 7 is an explanation showing a deformed state of the uprising. 1 ... uprising, 2 ... cutting beam, 3 ... uprising flange, 4,
8 ... Bolt hole, 5 ... Flange reinforcement metal, 6 ... End plate, 7 ... Rigid connecting plate, 9, 10, 12, 15 ... Bolt, 11
...... Flag beams

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yutaka Tanaka 1-6-5 Nihonbashihonmachi, Chuo-ku, Tokyo Maruto Fuji Sheet Pile Co., Ltd. (72) Tomoo Shibata 1-6, Nihonbashihonmachi, Chuo-ku, Tokyo Marufuji Sheet Pile Co., Ltd. (72) Inventor Kunio Sakai 1-6, Nihonbashi Honmachi, Chuo-ku, Tokyo No. 5 Marufuji Sheet Pile Co., Ltd. (72) Shinichi Sawada 1-chome, Nihonbashi Honcho, Chuo-ku, Tokyo No. 6-5 Marufuji Sheet Pile Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An abdomen (1) made of a steel material having a pair of flanges (3) (3), a cut beam (2) or a bait beam (11) attached to the flange surface of the agitation, and the abdomen. And a pair of flange-reinforcing metal pieces (5) and (5) that are inserted and arranged between a pair of raised flanges, wherein the steel material is composed of a shaped steel such as H-shaped steel, grooved steel, and the like. A rigid connecting plate (7) having a length corresponding to a dimension between a pair of flanges in the uprising, and an end fixed to both ends of the connecting plate so as to be orthogonal thereto and provided with one or more bolt holes. The plates (6) and (6) are configured to contact the mounting end portion of the cut beam or the striking beam while keeping a certain angle on the outside of the flange surface of the uprising (1), and Between the pair of flanges (3) (3), a set of the two flange reinforcing hardware (5) (5) Are inserted so as to face each other, and a rigid connecting plate (7) in the flange reinforcing metal member is provided in a load bearing surface for receiving the load of the cutting beam or the striking beam in the uprising in a direction orthogonal to the load bearing surface. Place and
Further, an end plate (6) of the flange reinforcing metal piece is arranged laterally away from the load bearing surface, and the uprising (1) and the reinforcing metal piece (5) are arranged through a bolt hole (8) provided in the end plate. )
(5) A structure which reinforces a bulging flange having a flange formed by bolting and.