JPH0728176Y2 - Girder support reinforcement - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a girder support reinforcement for forming a roadbed of an elevated road or the like.

[Problems to be solved by conventional techniques and devices]

The conventional bearings of this type of girder material are roughly classified into a rubber shoe and a steel shoe. The rubber shoe can resist vertical force and horizontal force, but it cannot resist rotational force in the falling direction. On the other hand, the steel lumber can prevent the girder material from rotating and rising by the engagement of the side blocks attached to the lumber main body. However, since steel shavings are expensive, the ability to suppress rising is weak, so it is necessary to make them large in order to strengthen them and increase the drag force by their own weight, resulting in a large equipment cost. Therefore, the present invention provides a reinforcing tool which is used together with an inexpensive rubber shoe to prevent the girder from rotating and rising.

[Means for Solving the Problems]

For this reason, the present invention supports a girder member for supporting a roadbed, and is provided on a receiving plate portion projecting outward from both lower end portions of the girder member or a mounting plate fixed to both lower end portions of the girder member. The outwardly facing receiving plate portion and the receiving wall that abuts on the outer end surface of the receiving plate portion are erected and continuous to the fixed plate portion, and the pressing projection portion that abuts on the upper surface of the receiving plate portion is provided on the receiving wall portion. An outer end surface of the receiving plate, which comprises an inwardly projecting pressing member at the upper end portion, and one of the upper surface of the receiving plate portion or the lower surface of the pressing protrusion contacting therewith is an arcuate bulging surface. Alternatively, one of the inner surfaces of the receiving wall that is in contact therewith is formed into an arcuate bulging surface, and a fixture for fixing the pressing member B to the girder receiving portion that supports the girder material is provided. It should be noted that a configuration may be adopted in which locking projections are provided outwardly on both sides of the receiving plate portion that abuts the inner surface of the receiving wall, and the receiving wall of the pressing member B is engaged and arranged between the locking projections. Good.

[Action]

The mounting plate A is fixed to both sides of the lower end of the girder whose lower surface is supported by a rubber sink to project the receiving plate part, or the receiving plate part embedded in the girder material itself is used to project the pressing member B. The lower surface of the pressing portion is brought into contact with the upper surface of the receiving plate portion, and the inner surface of the receiving wall of the pressing member B is made to face the outer end surface of the receiving plate portion of the mounting plate A, and the pressing member B is fixed to a girder pedestal or the like with a bolt or the like fixture. It is fixedly used. In this case, since the pressing protrusion and the receiving plate are pressed against each other with the arc-shaped contact point, the girder material can be prevented from rising and falling, and the linear contact can be always maintained even if the longitudinal direction is inclined. It is possible to support the girder by distributing the excessive moment. Further, since the outer end surface of the receiving plate portion of the mounting plate A and the inner surface of the receiving wall of the pressing member B are pressed into contact with each other by arcuate contact points, linear contact is always made even when horizontal horizontal force is applied to the beam member. Since it can be maintained, excess moment can be dispersed and the girder material can be supported. It should be noted that if locking projections are provided outwardly on both sides of the receiving plate portion that abuts the inner surface of the receiving wall and the receiving walls of the pressing member B are engaged and arranged between the locking projections, the pressing member B The arrangement becomes stable and becomes stable.

【Example】

Hereinafter, details of the present invention will be described with reference to illustrated embodiments. In the present example shown in FIG. 1, A is a mounting plate, which is formed by protruding a receiving plate portion 2 outward at the lower portion of a vertical mounting plate portion 1 having a horizontal bolt insertion hole 1a formed therethrough. (See Figure 2). A pressing member B is provided with a receiving wall 5 facing the outer end surface of the receiving plate portion 2 and a standing protrusion continuous to the horizontal fixed plate portion 4 and abutting against the upper surface of the receiving plate portion 2. The portion 3 is formed by projecting inwardly on the receiving wall 5, and the bolt insertion hole 4a is vertically provided through the fixing plate portion 4 (see FIGS. 2 and 3). Further, locking projections 2a are provided outwardly on both sides of the receiving plate 2 of the mounting plate A to form an empty space 2b between the locking projections 2a, and the receiving wall 5 of the pressing member B is formed. Engagement can be arranged. Then, the particularly characteristic configuration of this example is as shown in FIG.
The vertical lower surface of the pressing projection 3 that abuts the upper surface of the receiving plate 2 is formed as an arcuate bulging surface 3a, and the locking projection 2a of the receiving plate 2 is formed.
That is, the inner surface in the horizontal direction of the receiving wall 5 facing the outer end surface 2c in between is formed as an arcuate bulging surface 5a. Next, the operation of this example will be described. First, as shown in FIG. 4, the mortar 6 is directly attached to the girder cradle D, the rubber slag 7 is laid on the mortar 6, and then the girder material K having the roadbed surface as an upper surface is installed. A bolt 8 is horizontally embedded in advance at the lower end of the girder K, and both ends of the bolt 8 are projected from the girder K. Then, the ends of the bolts 8 projecting into the bolt insertion holes 1a are passed through, and the nuts 1b are screwed to fix the mounting plates A to both side surfaces of the girder K, and the arcuate shape of the lower surface of the pressing projection 3 of the pressing member B. The bulging surface 3a is applied to the upper surface of the receiving plate portion 2, and the arcuate bulging surface 5a of the inner surface of the receiving wall 5 of the pressing member B is made to face the outer end surface 2c of the receiving plate portion 2 of the mounting plate A, and the girder pedestal is preliminarily used. The bolt Ka, which is vertically embedded in the D and protrudes, is inserted into the bolt insertion hole 4a and screwed with the nut 4b to fix the pressing member B to the girder pedestal D. The height of the pressing member B is adjusted by interposing the block mortar 9. As described above, according to this example, the load applied to the girder material K is received by the rubber dregs 7, and the pressing protrusion 3 of the pressing member B presses the receiving plate portion 2 of the mounting plate A downward. And the receiving wall 5 of the pressing member B faces or abuts the receiving plate portion 2 of the mounting plate A, so that the horizontal movement of the beam K on both sides can be prevented. It can resist the rotational force. In this example, the movement of the girder material K is restricted, but the free expansion and contraction of the girder material K is calculated in advance and the receiving plate portion 2 of the mounting plate A and the receiving wall 5 of the pressing member B are slightly moved. Place them apart. As shown in FIG. 5, since the pressing projection 3 of the pressing member B presses the receiving plate 2 of the mounting plate A with the arcuate bulging surface 3a, the arcuate expansion does not occur even if an inclination occurs in the front-back direction. Since the linear contact can be secured at any part of the projecting surface 3a, it is possible to limit the tilt more than necessary while effectively holding the girder material K. Further, as shown in FIG. 6, the outer end surface 2c of the receiving plate portion 2 of the mounting plate A is
Since the arcuate bulging surface 5a on the inner surface of the receiving wall 5 of the pressing member B faces the linear member, linear contact is made at any part of the arcuate bulging surface 5a even if the beam K moves horizontally. Therefore, it is possible to limit the lateral movement more than necessary while holding the girder material K. That is, the large deformation moments generated by the displacement of the girder K are released by the contact with the arcuate bulging surfaces 3a and 5a, respectively, and the holding by the pressing member B within a proper free expansion and contraction allowable range is maintained well. In addition, since the receiving wall 5 of the pressing member B is engaged with the disposition space 2b between the locking projections 2a of the receiving plate portion 2, the disposition of the pressing member B becomes stable and stable. Therefore, the movement of the girder material K can be further restricted. Although this example is configured as described above, the present invention is not limited to this. For example, regardless of the location where the arcuate bulging surface is formed, either the upper surface of the receiving plate or the lower surface of the pressing protrusion that abuts against it, or the outer end surface of the receiving plate or the inner surface of the receiving wall facing it The arcuate bulging surface may be formed on either one of them, and may be formed on the mounting plate side as shown in FIG. Further, as shown in FIG. 8, the receiving plate portion may be pressed and held as a receiving plate portion 2'which is embedded in the girder K in advance and projected. Further, the structure of the fixture for fixing the pressing member to the girder cradle that supports the girder material is not limited. The base interposed below for adjusting the height of the pressing member may be a block mortar or a steel plate or mortar directly attached. In addition, the support of the girder material is also appropriate, but the one using a rubber shoe is the most economical in terms of economy.

[Effect of device]

According to the present invention, the lifting and horizontal movement of the girder material can be limited to resist the turning force of the fall, the girder material can be freely expanded and contracted to ensure good holding of the girder material, and a rubber trough is also used. By doing so, a more reliable bearing can be realized. According to the second aspect of the present invention, the pressing member can be stably arranged.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is a perspective view from the inside of a pressing member, and FIG. 4 is a vertical sectional front view of its use state, FIG. 5 is an enlarged vertical sectional view of the pushing-down portion, FIG. 6 is an enlarged transverse sectional view of the side pressing portion, FIG. 7 is a perspective view of another example mounting plate, and FIG. 8 is another state of mounting the receiving plate portion. FIG. 3 is a sectional front view of a main part of the girder material. A: Mounting plate, 1: Mounting plate part, 1a: Bolt insertion hole, 1b: Nut,
2, 2 ': receiving plate, 2a: locking projection, 2b: empty space, 2c: outer end surface, B: pressing member, 3: pressing projection, 3a: vertical arcuate bulging surface, 4: Horizontal plate part, 4a: Bolt insertion hole, 4a: Nut, 5: Receiving wall, 5a: Horizontal arcuate bulging surface, 6,9: Mortar, 7: Rubber slag, 8, Ka: Bolt, K: Girder material , D: Girder stand.

Front page continuation (71) Applicant 999999999 Nakanihon Construction Consultant Co., Ltd. 1-8-6 Nishiki, Naka-ku, Nagoya-shi, Aichi (74) Attorney Hidetoshi Matsushima (71) Applicant 999999999 H. SST Development Co., Ltd. 2-5-5 Hirakawa-cho, Chiyoda-ku, Tokyo (72) Inventor Susumu Takagi 3-19-7 Aoi Center Bldg. Aoi, Higashi-ku, Aichi Prefecture (72) Inventor Yoshihiro Ohno Gifu 184 Fukutomi, Gifu City, Gifu Prefecture (72) Inventor Yuichi Oizumi 9-1 Takamoridai, Kasugai City, Aichi Prefecture 107-414 Examiner Ryoji Kawashima

Claims (2)

[Scope of utility model registration request] 1. A girder material K for supporting a roadbed is supported, and is fixed to a receiving plate portion 2'protruding outward from the lower end portions of both sides of the girder material K or both lower end portions of the girder material K. An outward receiving plate portion 2 protruding from the mounting plate A and a receiving wall 5 abutting the outer end surfaces of the receiving plate portions 2 and 2 ′ are arranged upright and continuous to the fixed plate portion 4, and the receiving plate portion 2 is provided. , 2'comprises a pressing member B which abuts on the upper surface of the receiving wall 5 and which abuts on the upper surface of the receiving wall 5. The pressing protrusion B abuts on the upper surface of the receiving plate portion 2, 2'or there. One of the lower surfaces of the parts 3 is formed as an arcuate bulging surface, and one of the outer end surfaces of the receiving plate parts 2, 2'or the inner surface of the receiving wall 5 that is in contact therewith is formed as an arcuate bulging surface. Then, a supporting member for supporting the girder material, characterized in that the girder receiving part for supporting the girder material K is provided with a fixture for fixing the pressing member B. 2. The receiving wall 5 of the pressing member B is provided between the locking projections 2a by projecting outwardly the locking projections 2a on both sides of the receiving plate 2 that abuts against the inner surface of the receiving wall 5. The support reinforcement according to claim 1, wherein the support reinforcement is arranged.