JPH0333768Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The industrial application field of the invention is a suspension bridge suspended by multiple small diameter wire ropes from a large diameter wire rope stretched between bridge girders. This is a field related to

[Conventional technology]

Conventional suspension bridges with this type of structure come in a variety of sizes, with larger ones constructed using asphalt or concrete for the walking parts.

However, in small suspension bridges, boards are placed horizontally in the walking section.

[Problem that the invention attempts to solve]

However, in conventional suspension bridges where the walking portion is made of boards, both edges of the boards are exposed, resulting in an unsightly appearance.
There were problems in that it was prone to corrosion due to wind and rain and was inferior in durability.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention adopts a structure in which a ground cover is provided that covers both ends of the board that constitutes the walking section and also serves as a non-slip surface.

[Effect]

By adopting this type of structure, the edges of the board are covered with ground covering, which gives it a good appearance and prevents corrosion from the edges due to wind and rain.It also prevents slipping and prevents accidents caused by tripping. can.

〔Example〕

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

FIG. 1 and subsequent figures illustrate one embodiment of the present invention, and the suspension bridge, which is designated as a whole by reference numeral 1 in the figures, is composed of left and right railings 2, 2 and a walking section 3 supported between them.

The left and right handrails 2, 2 are constructed using hollow square timbers 4 pultruded from aluminum or the like, for example.
These square members 4 are attached to struts 5 arranged at predetermined intervals.

A support frame 7 made of H-shaped steel or the like is fixed to the lower end of each column 5 via a bracket 6.

The support frame 7 is suspended horizontally between the opposing columns 5, 5 of the left and right railings 2, 2, and U-shaped hooks 8 are fixed to both left and right ends of each support frame 7. The lower end of a wire rope 9 suspended from a large diameter wire rope stretched between bridge girders (not shown) is fixed to the lower end.

On the support frames 7 arranged at predetermined intervals, support beams 10 and 1 are installed at positions closer to the left and right railings 2 and 2.
0 is horizontally suspended and fixed to the support frame 7.

This support beam 10 is made of H-shaped steel and has a plate beam 11 fixed to its upper surface with bolts 12.

In addition, as shown in FIG. 2, the left and right support beams 10,
Between 10 and 10, there is a frame 13 for keeping both at a constant distance.
are arranged at predetermined intervals, and a spacer 14 is arranged between the lower surface of each support beam 10 and the support frame 7.

On the other hand, a net-like body 15 for preventing punching is placed on the upper side of the plate beam 11.

As shown in FIG. 3, this net-like body 15 is made of expanded metal made of aluminum, for example, and its overall width is wider than the interval between the support beams 10, 10, and is approximately equal to the interval between the balustrades 2, 2.

A board 16 of a predetermined width is laid on the upper side of this net-like body 15.

The length of the plates 16 is slightly longer than the width of the net-like body 15, and adjacent plates 16 are arranged in close contact with each other and fixed to the plate beam 11 with nails 17.

Since the nails 17 are driven into the joist 11 through the mesh of the mesh 15, even if the mesh 15 exists, it will not get in the way, and since the mesh 15 is locked by the nails 17, the mesh will not be punched through. It never happens.

By the way, a ground cover 18 is fixed to both ends of the plate 16 in the longitudinal direction.

The ground cover 18 is pultruded from aluminum or the like, and has a substantially T-shaped cross section as shown in FIGS. 3 and 4.

Then, a vertical portion 1 formed in a slightly arc shape
8a and a horizontal portion 18b extending from the middle thereof.
A letter-shaped guide frame 18c is formed.

The lower surface of the tip of the horizontal portion 18b and the lower surface of the guide frame 18c are flush with each other.

Inside this guide frame 18c is a head 19 of a bolt 19.
a is fitted from the edge of the guide frame 18c, and this bolt 19 is inserted into the through hole 16a formed at both ends of the plate 16.
nut 20 on the underside of plate 16
Fixed by

This ground covering 18 also has the role of preventing pedestrians' feet from sliding on the board 16 and stepping outside the board 16.

When such a base cover 18 is installed, the vertical portion 18a of the base cover 18 covers the edge of the plate 16, thereby preventing the edge of the plate 16 from being corroded by wind and rain.

Further, since the edges of the plate 16 are not exposed, the appearance is good and the finished product is neat and clean.

In the above-described embodiment, an aluminum pultrusion molded product was used as an example, but it may be made of iron coated with plastic or molded with high-strength plastic.

〔effect〕

As is clear from the above explanation, according to the present invention, a structure is adopted in which a ground covering is provided to cover the edges of the boards that make up the walking section of the suspension bridge, so the edges of the boards are not exposed and the appearance is improved. It has a good appearance, prevents corrosion of the edge of the board due to wind and rain, and prevents pedestrians from stepping on it.

[Brief explanation of the drawing]

The figure is for explaining one embodiment of the present invention.
The figure is an overall perspective view, FIG. 2 is a sectional view taken along the line A--A in FIG. 1, FIG. 3 is a partially enlarged sectional view of the ground cover installed, and FIG. 4 is a perspective view of the ground cover. 1... Suspension bridge, 2... Railroad, 3... Walking section, 5...
...Strut, 7...Support frame, 9...Wire rope, 1
0...Support beam, 15...Network, 16...Plate, 1
6a...Through hole, 18...Ground cover, 18a...Vertical part, 18b...Horizontal part, 18c...Guide frame, 19
...Boruto, 20...Natsuto.

Claims (1)

[Scope of utility model registration request] Railings 2, 2 having pillars 5 arranged vertically at predetermined intervals, support frames 7 suspended horizontally at the lower ends of the pillars of each railing 2, and arranged along the vicinity of both ends of these support frames 7. fixed support beams 10, 10;
In a suspension bridge equipped with a plurality of plates 16 horizontally fixed between the support beams 10 and 10 via plate beams 11 fixed above the support beams 10 and 10, both end edges of the plurality of plates 16 are provided. A ground cover 18 is provided at the T, and this ground cover 18 has a vertical part 18a that covers the edge of the board 16 and a horizontal part 18b that covers the upper surface of the end of the board 16.
A downward C-shaped guide frame 18c is continuously formed on the lower surface of the horizontal portion 18b, and the lower surface of the guide frame 18c is flush with the lower surface of the tip of the horizontal portion 18b. Inside the frame 18c are heads 19a of bolts 19 for fixing the ground covering 18 to the plate 16.
A suspension bridge characterized in that these are slidably fitted together.