JPS60129303A - Joint member of road - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) TECHNICAL FIELD The present invention relates to a joint member for a road, and particularly for a bridge.

It is used in the field of road bridges such as elevated roads.

(Prior Art) One of the conventionally known road joint members is what is called an M-finger joint member. This joint member has a pair of face plates whose sides are comb-shaped on the side between the road joints, each fixed to the upper end of the web plate (vertical plate), and a bottom plate fixed to the lower end of the web plate. The comb-shape processing and welding of each member are troublesome, and it is often necessary to correct welding distortion, so the cost of manufacturing is labor-intensive, and the cost is unavoidable. During construction, when pouring backfill material such as concrete behind the web plate, the corner between the face plate and the web plate appeared to be a blind spot, causing the backfill material to wrap around the underside of the face plate. Mixed female<,
Decreasing durability due to insufficient filling of backfilling shrines has become a growing problem. In addition, even after construction, if the pavement surface on the back (the top surface of the recess material) is worn out due to ruts, etc., the face plate will have a step between it and the pavement surface that extends linearly over the entire length of the road width. This causes problems such as road traffic pollution such as deterioration of vehicle drivability and generation of noise and vibration.
.

(Object of the Invention) The object of the present invention is to provide an interlocking type joint member that can be easily manufactured without the need for comb-shaped processing such as conventional fume, machining, and chair plates. The aim is to solve problems such as insufficient filling of materials and deterioration of vehicle driving performance due to abrasion of the paved surface.

(Structure of the Invention) The road joint member according to the present invention includes, as main components, a pair of vertical plates facing each other with a clearance, a plurality of road surface members intersecting each of the vertical plates, and a sealing member. shall be. Each road surface member has a horizontal portion on its upper surface, which is connected to the respective vertical plates in a crosswise manner, and the protruding portions of each road surface member that protrude from the respective vertical plates in a space are in mesh with each other. Furthermore, each road surface member is provided with a portion of an anchor that protrudes downward, and the seal member connects both grade plates and closes the clearance.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

One embodiment/- In the joint member 1 of this example shown in FIG. 1, 2.2
is a pair of vertical plates arranged in parallel with a clearance 6 between them, and both sides of a U-shaped sealing member 4 are fixed to the lower part of the opposing surfaces, respectively, so that the clearance 6 is closed by the sealing member 4. are connected.

5 is a road surface member that intersects with each vertical board 2.

The road surface member 5 has a base 6 having a rectangular cross section and extending in a direction intersecting the vertical plate 2. A locking portion 7 extending downward is provided at the front end of the base 6, and an anchor portion 8 extending downward is provided at the rear end. The upper surface of the vehicle 6 has a horizontal portion 9 that is substantially aligned with the road surface, and a front slope portion 10 and a rear slope portion 11 that are sloped downward toward the front and rear of the horizontal portion 9, respectively. In the case of this example, the vertical plate 2 has fitting grooves 12 that are open upward at a predetermined interval S (more than twice the width W of the road surface member 5).
The road surface member 5 is fitted in the position where the horizontal portion 9 is provided,
In addition, the locking portion 7 is locked to the vertical plate 2 so that the vertical plate 2 and the road surface member 5 intersect, and in this crossed state, the two are joined by welding the intersection.

Note that the front inclined portion 10 of the road surface member 5 may not be provided, and the horizontal portion 9 may be formed up to the front end of the road surface member. The fact that the front inclined portion may be omitted in this way also applies to the embodiments shown in FIGS. 3 and 3, which will be described later.

Further, the vertical plate 2 and the road surface member 5 may be connected by simple fitting instead of welding.

In this way, the protrusion 16 of each road surface member 5 that protrudes from one vertical board 2 into the play space 6 faces between the protrusions 13 and 13 of each road surface member 5 that protrudes from the other vertical board 2 into the play space 6. They are in a meshed state with joint play 14.

Furthermore, an anchor bar 15 projects from the vertical plate 2 on the side opposite to the play space 6.

In the case of this example, the anchor part 8 of the road surface member 5 extends to approximately the same height as the lower end of the vertical board 2 or close to it, that is, the vertical board 2 and the road surface member 5 are approximately at the same height, The joint member 1 can be kept stable on the road surface using the vertical plates 2, 2 and the anchor part 8 of the road surface member 5 as legs, and the vertical plates 2 and the road surface member 5 are assembled in a factory or the like and sent to the construction site. It has a high sense of stability when being transported, and even when the vertical board 2 and the road surface member 5 are assembled and left on the road surface for a while during construction, the joint member 1 will fall over and the road surface member 5 will come off. Accidents such as this will not occur. When the anchor part 8 is made shorter than the vertical plate 2, a spacer may be separately interposed between the anchor part 8 and the road surface.

FIG. 2 shows a state in which the joint member 1 of this example is constructed at a road joint.

The joint member 1 is placed or suspended from the notch step 16° 16 at the end of the road so that its upper surface is at the same height as the road surface, and the joint member 1 is placed in a state where the upper surface is at the same height as the road surface. The anchor bars 15 are appropriately combined with the U-shaped stirrup bars 17, the through bars 18 in the road width direction, the distribution bars, etc., and the backfilling material 19 is placed in the notch step 16, thereby creating a road joint. Attach it to the section.

In this case, the vertical plate 2 functions as a template for casting the backfilling material, and there is no need to provide a separate template. In addition, since the road surface members 5 are provided at intervals in the road width direction and do not cover the road surface widely, the backfill material 19 wraps around from both sides of the road surface member 5 to the bottom of this road surface member 5 and fills the backfill. There is no problem of insufficient filling of the material 19, and each road surface member 5
A compaction device (vibrator) for the backfilling material 19 can be inserted in between, and sufficient compaction can be achieved.

In FIG. 2, 20 is a floor slab and 21 is a pavement.

In the joint shown in FIG. 2, the joint clearance 14 opened to the road surface is wave-shaped, and the vehicle moves from the protrusion 13 protruding from one vertical plate 2 to the protrusion 16 protruding from the other vertical plate 2. □The tires are always in contact with the road surface when driving, resulting in good driving performance. In addition, since the boundary between the joint member side and the backfill material 19 side, which are made up of the vertical plate 2 and the road surface member 5, is wavy in the direction of the road, the backfill material 19 is slightly worn and there is a step at the boundary. Even if the road surface member 5 is formed, the vehicle does not receive a large impact on the tires. Moreover, because the road surface member 5 is provided with the rear inclined portion 11, the tires ride smoothly on the road surface member 5, greatly improving the running performance of the vehicle. There is no obstruction.

Further, since the anchor part 8 of the road surface member 5 is deeply embedded in the backfilling material 19, the installation stability is high, and the road surface member 5 does not float up from the road surface due to vibrations of the bridge or wheel loads applied to the protrusion 16.

An example! One example of the joint member 31 shown in FIG. 3 is the road surface member 32.
This shows a modification example, in which the vertical plate 2 and the seal member 4 have the same configuration as in the embodiment.

In this example, the anchor part 66 of the road surface member 62 extends downward while in contact with the back surface of the vertical plate 2, and the locking part 7 and the anchor part 66
The vertical plate 2 is clamped between the plates 2 and 3, and this clamping improves the stability of the assembled state of the vertical plate 2 and the road surface member 5. In this example, since the overall length of the road surface member 5 is shortened, the horizontal portion 6
The length of 4 is also shorter.

Embodiment 3 The joint member 41 shown in FIG. 7 of this embodiment also has a road surface member 42.
This is an example in which the configuration is different from the embodiment.

That is, in this example, it is a part of the anchor of the road surface member 42.

The anchor part 46 extends downward while being in contact with the vertical plate 2, and is gradually expanded downward by tilting the rear surface of the anchor part 43 backward.
This is intended to prevent the material from being pulled out of the backfilling material 19. Further, in the case of this example, a locking portion is not provided, but a locking portion may be provided as in the previous cicada example.

The joint member 51 shown in FIG. 5 of this embodiment is a feature of the road surface member 52 as in the second and third embodiments.

That is, in this example, the rear inclined portion 56' of the road surface member 52 is extended rearward relatively long to increase the difference in height between the horizontal □ portion 54 of the road surface member 52 and the rear end of the rear inclined portion 56, and the backfill material is The rear end of the rear inclined part 53 is prevented from being exposed even if there is a large amount of wear, and the anchor part 55 is formed of a reinforcing bar and connected to the base part.

Embodiment j - The joint member 56 shown in FIG.
The front surface 59 of the anchor part 58 of No. 7' is made to withstand downward tilting forward and gradually expand downward, and is intended to prevent the anchor part 58 from being pulled out from the backfilling material.

In addition, each of the road surfaces of Examples/~j may be modified such that the anchor portion 8 of the road surface member 5 shown in FIG. 1 is gradually enlarged downward like the anchor portion 46 of the road surface member 42 shown in FIG. The base, horizontal part of the member.

A joint member may be constructed by combining a portion of the anchor and a locking portion.

Embodiment 3 - Joint member 6.1 shown in the assembled state in FIG. 7 of this example
is characterized by the glossy rows of road surface materials.

That is, in the vertical plate 62, there are 27 sets of fitting grooves 6. formed at relatively narrow intervals S. 63 are disposed in the direction of the road with a relatively wide interval S2, and a road surface member 64 is fitted into each fitting groove 63.

In addition, in the present invention, when applying the joint member to a diagonal bridge, the road surface member is normally disposed so as to be elongated in the axial direction of the bridge.

In some cases, such as a straight nine-curve bridge, the road surface members are arranged diagonally with respect to the bridge axis.

Further, when a rear slope part is provided on a road surface member, it may be a linear slope when viewed from the side, or may be a curved slope downwardly sloped with a predetermined curvature.

In addition, if the sealing member connects a pair of vertical plates to close a gap, its cross-sectional shape may be appropriately changed to a desired shape such as a V-shape or a rectangular shape other than the U-shape of the above embodiment. be able to.

(Effects of the Invention) According to the present invention, an interlocking type joint member can be obtained by combining a vertical plate and a road surface member, and comb-shaped processing unlike conventional finger joint members is not required, making it easy to manufacture. In addition, both the free space side and the back side of the vertical board are wave-shaped, which improves vehicle running performance, and also allows the backfill material to wrap around the bottom of the road surface member.Furthermore, the road surface member itself Since there is a part of the anchor in the joint member, it is possible to improve the mounting stability of the joint member and the load-bearing strength.

[Brief explanation of drawings]

Figure 1 is a perspective view of the joint member of Example/2, Figure 2 is a perspective view cut in the bridge length direction of the road joint part where the joint member on the same side is constructed, and Figures 3 to 4 are respectively Perspective views of joint members of Examples 2 to J, FIG. 7 is a joint member of Example B, 2.62... Vertical plate, 6
...Play space, 4...Seal member, 5.3
2.42.52, 57.64... Road surface member, 8
．． 33.43.55.58・・・Anchor part, 9
．． 64.54...Horizontal part, 14...Joint play Figure 1 Figure 2

Claims (1)

[Claims] (1) A pair of vertical plates arranged parallel to each other with a gap at the road joint, a plurality of road surface members arranged to intersect with each vertical plate, and a seal member connecting both vertical plates. Each road surface member has a horizontal portion on its upper surface that is substantially aligned with the road surface, and is connected to the vertical plate in a crosswise manner, and the protruding portion of each road surface member that protrudes from one vertical plate into the gap is connected to the other vertical plate. The road surface members are in a meshed state with joint play between the protruding portions of the road surface members that protrude from the vertical plates of the road surface members, and a part of the anchor that protrudes downward is provided at a position outside the gap of each road surface member. A road joint member characterized by: