JPH0230495Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a steel wall railing installed in a bridge, particularly a road bridge such as an elevated road.

Usually, wall railings are installed on road bridges to prevent vehicles such as automobiles and goods from running off the road, and to prevent noise caused by running automobiles from escaping to the outside of the road.

These wall railings are often made of concrete due to their sound insulation effect and durability.

However, concrete wall railings not only impose a considerable amount of dead load on the bridge, but also require time for form work and concrete curing during construction, making it difficult to open the road early. There is also a concern about the adhesion between the steel deck slab and concrete.

Therefore, steel wall railings have been considered, but they are unreliable when welded on site, and there are problems with workability when fixing them with bolts.

The present invention was developed in order to eliminate such drawbacks, and its structure consists of a floor slab fixing plate that has a fixed length and is bolted to the floor slab, and a floor slab fixing plate that is discontinuously formed. a steel base plate consisting of a steel wall back fixing plate raised on the back side and a steel wall slope fixing plate having a slope provided in front of the floor plate fixing plate;
The back plate, which has the shape of a folded steel plate and has a certain thickness depending on the space, is bolted to the steel wall back fixing plate of the steel base plate, and the lower part is bolted to the steel wall slope fixing plate of the steel base plate. A steel wall railing characterized by comprising a steel wall consisting of a front plate having a slope on the side thereof, and a steel curb stone having a tire support portion on the front side bolted to the slope of the steel wall. It is.

Next, embodiments of the present invention will be described based on the drawings.

In the drawings, 1 is a steel base plate, 2 is a steel wall, and 3 is a steel curb.

The steel base plate 1 is formed of a floor plate fixing plate 11 having a constant length in the extending direction of the road, a steel wall back fixing plate 12 discontinuously provided with gaps 14, and a steel wall slope fixing plate 13. It is formed discontinuously with a gap 15 in the same manner as the steel wall back fixing plate 12 with a slope, and a reinforcing plate 16 is usually installed between the steel wall back fixing plate 12 and the steel wall slope fixing plate 13. It is set up and looks nice. 17 and 18 are bolt holes provided in the floor slab fixing plate 11 and the steel wall slope fixing plate 13, respectively; 19 is attached to the bolt holes provided in the steel wall back fixing plate 12 and the steel wall slope fixing plate 13. This is Natsuto.

The steel wall 2 has the shape of a folded steel plate, has a constant thickness 21 depending on the space, and is integrated with the steel wall back fixing plate 12 of the steel base plate 1.The steel wall 2 has a back plate 22 and a steel wall of the steel base plate 1. It consists of a front plate 23 having a slope 24 that is integrated with the slope of the slope fixing plate 13, and a reinforcing plate 25 is appropriately provided between the back plate 22 and the front plate 23. Numerals 26 and 27 are bolt holes provided in the slopes 24 of the back plate 22 and front plate 23, respectively.

Here, the folded shape of the steel plate of the steel wall 2, the steel wall slope fixing plate 13, the floor plate fixing plate 11, and the steel wall back fixing plate 12 of the steel base plate 1 are formed by bending the steel plate. Of course, each surface may be formed using a separate steel plate. Incidentally, it goes without saying that a plurality of bolt holes provided in the steel base plate 1 and the steel wall 2, and a plurality of nuts attached to the bolt holes may be provided as necessary.

The steel curb 3 is formed in the shape of a cover with a tire support portion 31 protruding from the front surface, is formed with a reinforcing plate 32 as appropriate, and is provided with a cut-down portion 33 at the top.

Each part thus constructed is installed in the following manner.

First, the steel base plate 1 is fixed to the floor slab 4 with bolts 5 through the bolt holes 17 provided in the floor slab fixing plate 11 of the steel base plate (anchor bolts are used in the case of a concrete floor slab).

Next, the steel wall 2 is attached to the base plate 1, the steel wall back fixing plate 12 of the steel base plate 1, the back plate 22 of the steel wall 2, the steel wall slope fixing plate 13 of the steel base plate 1, and the steel wall 2. and the slope 24 of the back plate 23 and are fixed by tightening the bolts 6 and 7 through the respective bolt holes or nuts, that is, 19 and 27, 18, and 19 and 26.
Here, the reinforcing plate 25 provided on the steel wall 2 is located in the gap 14 of the steel wall back fixing plate 12 of the steel base plate 1 and the gap 15 of the steel wall slope fixing plate 13, so it does not interfere with assembly. Must not be.

Next, the steel curb 3 is bolted 9 to a receiver 8 appropriately provided on the slope 24 of the front plate 23 of the steel wall 2.

In this way, the steel base plate 1, the steel wall 2, and the steel curb 3 are connected to the floor slab, and the steel wall railing is constructed as a whole. Note that when assembling the steel base plate 1 and the steel wall 2 by shifting them, for example, as shown in FIG. If the parts can be assembled to make the whole longer, the whole will be better connected.

Since the present invention is constructed in this manner, it has approximately the following effects.

Since it is a steel wall balustrade with a hollow thickness due to its folded shape, the dead load on the deck slab can be reduced compared to a concrete wall balustrade. In other words, under certain standards, compared to 545Kg/m for concrete products,
If it is made of steel, the dead load will be 200 kg/m, which will significantly reduce the dead load.

In addition, since steel wall railings do not require form work or concrete curing period unlike concrete wall railings, construction time can be shortened, and when used for steel deck slabs, unlike conventional steel deck slabs, There is no need to worry about adhesion to concrete.

Furthermore, by using steel curb stones, bolts protruding from the front side wall surface can be covered, which improves the aesthetic appearance, and since reinforcing plates are used, it is also useful in terms of strength.

The present invention thus provides a steel wall balustrade with numerous advantages.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention: Fig. 1 is a perspective view of a steel base plate, Fig. 2 is a perspective view of a steel wall, Fig. 3 is a perspective view of a steel curb, and Fig. 4 is a perspective view of a steel wall. The assembled perspective view and FIG. 5 are cross-sectional views of the steel wall railing. In the drawings, 1 is a steel base plate, 11
1 is a floor plate fixing plate, 12 is a steel wall back fixing plate, 13 is a steel wall slope fixing plate, 14 and 15 are gaps, 17 and 1
8 is a bolt hole, 19 is a nut, 2 is a steel wall, 21
is the thickness of the space formed in the fold, 22
is the back plate, 23 is the front plate, 24 is the slope of the front plate,
26 is a bolt hole, 3 is a steel curb, 31 is a tire support, 4 is a floor slab, and 5, 6, 7, and 9 are bolts.

Claims (1)

[Scope of utility model registration request] A steel wall back fixing plate that has a certain length and is discontinuous with the floor plate fixing plate that is bolted to the floor plate and stands up on the back of the floor plate fixing plate and is installed in front of the floor plate fixing plate. A steel base plate consisting of a steel wall slope fixing plate having a sloped surface, and a back plate having a shape of a folded steel plate and having a certain thickness depending on the space and bolted to the steel wall back fixing plate of the steel base plate. A steel wall consisting of a face plate and a front plate having a downward slope that is bolted to the steel wall slope fixing plate of the steel base plate, and a tire support section on the front side that is bolted to the slope of the steel wall. A steel wall railing characterized by comprising a steel curb.