JPH0971914A - Protective wall combined with fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a protective wall for a bridge which is combined with a fence to lessen the number of members and reduce the member cost and which is easily constructed and excellent in the design and the landscape. SOLUTION: The upper horizontal beam 51, the lower horizontal beam 52, and hand rails 4 are fitted to the lower part of the front face of a support 1 erected on the ground to form a protective fence for a bridge. A fence frame 62 is fitted to the external periphery of a fence panel 61 and a fence 6 is fitted between the side faces of the support 1 from the rear face of the protective fence for a bridge to the upper part thereof. Two kinds of fences of the protective fence panel 5 for a bridge and the fence 6 are installed on the support 1. In this way, since the support 1 is used for the protective fence for a bridge and the fence protecting against wastes thrown away, in common, it can be neatly installed on the ground and it becomes excellent in the design. Moreover, the number of members is reduced and the construction works can be exerted from the inside of a bridge and hence, the workability is improved and the member cost is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fence in which a fence such as a balustrade and a fence such as a throw prevention fence, a fall prevention fence, a windbreak fence, a snowbreak fence, and a blind fence are integrated.

[0002]

2. Description of the Related Art Conventionally, when a bridge protection fence and a fence are installed in the same place, a fence pillar is attached to the back of the bridge protection fence pillar, or separately from the bridge protection fence on the side of the ground cover. It was known that an anti-throwing fence was installed.

For example, in Japanese Utility Model Laid-Open No. Sho 59-188513, a bracket is formed on the back of a balustrade prop, a fence prop is attached to this bracket, a shielding plate is stretched below the fence prop, and a fence is stretched above. The following balustrade is proposed.

An example in which a throwing prevention fence is independently installed on the side surface of the ground separately from the guard fence for bridge will be described with reference to the drawing. In FIG.
A bottom flange 113 is screwed and erected on the ground cover 2 by an anchor bolt 130 embedded in the upper surface of the. An upper horizontal beam 151, a lower horizontal beam 152, and a handrail 140 are attached to the front of the pillar 110 to form a bridge protective fence 100. The fence support 210 is attached to the side surface of the ground covering 2 via the metal fitting 213 by the anchor bolt 230 embedded in the side surface of the ground covering. A fence frame 262 is attached to the outer periphery of the fence panel 261, and the fence frame 262 is attached to the fence support 210 to form the fence 200.

[0005]

However, as described above, a fence prop is attached to the back of a balustrade prop, or a throw-prevention fence is separately installed on the ground cover side separately from the bridge guard fence. Since the protection fence support and the fence support were separate, the number of members increased and the cost of the members increased, and the design work was complicated because it was necessary to consider the mutual fitting of the members. In addition, in terms of construction, the installation of the fence behind the protective fence for bridges generally requires a very small space and is difficult to work. Furthermore, there is a problem in that the design fence and the landscape are lacking because the protective fence for the bridge and the fence are separate.

[0006]

The fence-integrated protection fence according to claim 1 of the present invention is provided with a protection fence post projecting from the height of the protection fence and a fence panel attached to the support fence. A fence for preventing throwing etc. is formed on the upper part and the back, and the fence and the protective fence are integrated, so the number of parts is small, the cost of the parts is low, the construction is easy, the design and the landscape It also has excellent properties.

According to a second aspect of the present invention, in the fence-integrated type protective fence, a fence frame is attached to the outer periphery of the fence panel, and the flange has an interval corresponding to the thickness of the fence frame. It is installed by inserting the fence frame in between, and when installing the fence, just insert the fence frame on the outer circumference of the fence between the flange inner walls of the columns and temporarily install it, and fix it with springs etc. Therefore, the workability is further improved.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a column, which is erected on a ground cover 2 of a bridge in a substantially straight line in a horizontal view. An upper horizontal beam 51, a lower horizontal beam 52, and a handrail 4 are continuously attached to the lower part of the front surface of the column 1 to form a protective fence. A fence frame 62 is attached to the outer periphery of the fence panel 61.
It is attached between the side surfaces of the fence to form a fence 6, and two types of fences, that is, a guard fence panel 5 and a fence 6 are installed on the pillar 1. When the guard fence is used as a balustrade, in order to prevent pedestrians and bicycles from falling out of the bridge, it must be designed so that a thrust of 250 kg / m is applied to the top at right angles to the side of the fence. A structural material having a large cross section is used for the fence panel 5.

Referring to FIGS. 2 and 3, reference numeral 1 is a column, the vertical cross section of which is a substantially inverted T-shape, and the anchor bolt 3 embedded in the ground cover 2 of the bridge in the bolt hole formed in the bottom flange 15 thereof. The threaded portion of is fixed with a nut. In this embodiment, the support 1 is made by welding steel plates together, and its upper cross-sectional shape is H-shaped in a horizontal view, and its front flange 11 is directed toward the front and the back flange 12 is directed toward the back. The lower section is the front flange 11
An intermediate flange 13 is formed between the rear flange 12 and the rear flange 12. A beam mounting portion 14 for mounting the upper horizontal beam 51 and the lower horizontal beam 52 of the handrail 4 and the bridge protection fence panel 5 is formed below the front flange 11 of the pillar 1. The beam mounting portion 14 is provided on the upper horizontal beam 51 and the lower horizontal beam 5 of the handrail 4 and the bridge protection fence panel 5.
2 is formed in a concave shape corresponding to the sectional shape of 2 to form a concave portion, and a bolt hole is formed therein. Upper horizontal beam 51, lower horizontal beam 52 of handrail 4 and protective fence panel 5 for bridge
Is fitted in the concave portion of the beam mounting portion 14 and fixed by a bolt through the bolt hole. As described above, the support column 1 is usually manufactured by joining steel plates by welding, but may be manufactured by casting or forging an aluminum alloy or other metal. The surface is subjected to appropriate surface treatment such as painting or plating.

In the present embodiment, the bridge guard fence panel 5 is constructed as a bridge guard fence panel 5 by erection of a steel strip vertical beam 53 between an upper horizontal beam 51 and a lower horizontal beam 52 made of steel pipe. , Upper horizontal beam 51 and lower horizontal beam 5
Bolt holes used for mounting to the pillar 1 are drilled near both ends of 2, and it is mounted on the torch pillar 1 to serve as a bridge protection fence, but made of other metal pipes or metal mold materials. The bridge protection fence panel 5 may be formed by only a plurality of horizontal beams.

The fence 6 is a front flange 11 between the columns 1.
Between the front flange 1 and the rear flange 12, and the repulsive elastic force of the spring 7 press-fitted between the fence frame 62 and the rear flange 12 causes the upper portion of the fence frame 62 to move toward the front flange 1.
1 and the lower part is crimped to the intermediate flange 13 and fixed to the column 1. Also, an angled space is provided at the bottom of the fence frame 62 to facilitate the work of fixing the bottom flange 15 of the support column 1 with the anchor bolt 3. As the spring 7, a leaf spring manufactured from a steel plate piece is usually used, but a spring manufactured from an appropriate material such as stainless steel may be used. In this embodiment, the attachment of the fence panel 61 is performed by crimping the fence frame 62 by the repulsive elastic force of the spring 7 and the back flange 12, front flange 11 and intermediate flange 13 formed on the pillar, but it is formed on the pillar 1. Alternatively, bolt holes may be formed in the rear flange 12, the front flange 11, and the intermediate flange 13, and they may be fixed with bolts and nuts.

In this embodiment, since the fence 6 is used for preventing throwing, a wire net or a welded wire net is used as the fence panel 61, and a fence frame 62 made of a metal mold is attached to the outer periphery of the fence panel 61 to form the fence 6. The fence panel 61 may be a metal plate having an opening such as expanded metal or punching metal, a metal plate such as a steel plate, an aluminum alloy plate or a stainless plate, or a synthetic resin plate such as a polycarbonate plate or an FRP plate. Further, the surface thereof is appropriately subjected to surface treatment such as painting or plating in consideration of designability and rust prevention. or,
It is preferable that the fence 6 is divided into two pieces vertically and installed in consideration of workability.

[0013]

According to the first aspect of the present invention, the fence-integrated type protective fence is installed such that the props of the protective fence project from the height of the protective fence and the fence panels are attached to the props, and the upper part and the back part of the protective fence. A fence for preventing throwing, etc. is formed, and when a protective fence and a fence such as throwing prevention fence are installed side by side, the pillar can be used as both the above-mentioned protective fence and the fence such as throwing prevention fence, and the number of pillars is small. Since it can be installed, it will smartly subside on the ground cover and will be excellent in design. Further, since the number of members is reduced and the construction work can be performed from inside the bridge, the construction workability is greatly improved. Further, since the number of members is reduced, the cost of members is reduced.
In addition, since the pillar has the cross-sectional ability necessary for a bridge protection fence to be used also as a fence such as a throw prevention fence, the fence such as a throw fence has more than sufficient performance.

According to a second aspect of the present invention, in the fence-integrated type protective fence, the fence frame is attached to the outer periphery of the fence panel, and the flange has an interval corresponding to the thickness of the fence frame. It is installed by inserting the fence frame between them, and when installing a fence such as a throwing prevention fence, insert the fence frame around the fence panel between the flanges of the pillars and temporarily install it and fix it with springs etc. Since the fence can be constructed just by doing so, the workability is further improved.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a protective fence with a fence according to the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is a horizontal cross-sectional view around a column of FIG.

FIG. 4 is a vertical sectional view showing an embodiment of a conventional fence and a protective fence.

[Explanation of symbols]

 1 Support 11 Front flange 12 Rear flange 13 Intermediate flange 14 Beam attachment part 15 Bottom flange 2 Ground cover 3 Anchor bolt 4 Handrail 5 Bridge guard fence panel 51 Upper horizontal beam 52 Lower horizontal beam 53 Vertical beam 6 Fence 61 Fence panel 62 Fence frame 7 spring

Claims (2)

[Claims] 1. A pillar of a protective fence is provided so as to protrude from the height of the protective fence, a fence panel is attached to the pillar, and a fence for preventing throwing is formed on the back and upper portions of the protective fence. A protective fence with a built-in fence. 2. A fence frame is attached to an outer periphery of a fence panel, and columns having a horizontal H-shaped cross section having flanges at intervals corresponding to the thickness of the fence frame are provided at appropriate intervals, and between the flange inner walls of the columns. The fence-integrated protective fence according to claim 1, wherein the fence frame is inserted and attached.