JPH042175Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a water stop device for preventing water such as rainwater from flowing down to the side from the upper surface of the deck of an arch bridge.

[Conventional technology]

The upper surface of the deck in a conventional arch bridge is substantially flat in the direction perpendicular to the bridge axis, and no water stop device is provided on the sides of the upper surface of the deck.

[The problem that the idea aims to solve]

Since no water stop device is provided on the sides of the upper surface of the deck in conventional arch bridges, there is a problem that water such as rainwater flows down from the upper surface of the deck laterally.

The purpose of this invention is to provide a water stop device for the top surface of an arch bridge deck that can prevent water such as rainwater from flowing sideways from the top surface of an arch bridge deck by a simple means. be.

[Means to solve the problem]

In order to achieve the above object, the water stop device for the upper surface of an arch bridge deck of this invention has a horizontal mounting plate 2 on the upper side of the arch bridge deck 1 and a horizontal mounting plate 2 rising upward from one side thereof. A water stop material 4 consisting of a water stop plate 3 attached to the floor plate is placed so as to extend in the longitudinal direction of the floor slab, and at least a portion of the mounting plate 2 in contact with the floor slab is made of a soft elastic material. 3 is provided with a hard material layer 5, and the mounting plate 2 is fastened and fixed to the arch bridge deck 1 by bolts 6 inserted therein.

[Effect]

When moisture such as rainwater on the top surface of the arch bridge deck 1 flows toward the sides of the deck 1, it is blocked by the water stop material 4, so water on the top surface of the deck flows from the sides of the deck. It won't run down.

〔Example〕

Next, this invention will be explained in detail using illustrated examples.

FIG. 4 shows a first example of water stop material 4 that can be used in the embodiment of this invention, and is made of a soft elastic material such as soft rubber (for example, hardness of 50 to 70 degrees).
A horizontal band-shaped mounting plate 2 and a water stop plate 3 rising upward from one side in the width direction of the mounting plate 2 are formed, and inside the mounting plate 2 and water stop plate 3, a hard A layer 5 of hard material such as rubber (for example, hardness 90 to 98 degrees) is embedded, and the mounting plate 2 is provided with a large number of bolt insertion holes 7 at intervals in the longitudinal direction of the mounting plate. The through hole 7 is located on the lower surface of the
A plurality of water-stop ridges 8 made of a soft elastic material and extending continuously in the longitudinal direction of the mounting plate are integrally provided on both sides of the mounting plate.

FIG. 5 shows a second example of water stop material 4 that can be used in the embodiment of this invention, in which a horizontal strip-shaped mounting plate 2 and the width of the mounting plate 2 are made of a soft elastic material such as soft rubber. A waterstop main body 3A is formed rising upward from one side in the direction, and a hard material layer 5 such as hard rubber is integrally provided on the side surface of the waterstop main body 3A opposite to the mounting plate 2. The mounting plate 2 is provided with a large number of bolt insertion holes 7 spaced apart from each other in the longitudinal direction of the mounting plate. A plurality of water stop ridges 8 made of a soft elastic material are integrally provided on both sides of the hole 7 and extend continuously in the longitudinal direction of the mounting plate.

FIGS. 1 to 3 show a water stop device for the upper surface of an arch bridge deck according to an embodiment of this invention using the water stop material 4 of the first example. A large number of anchor holes 9 are provided at regular intervals in the bridge axis direction at the upper portions of both ends perpendicular to the bridge axis, and each anchor hole 9 has an upper female threaded hole 10, a lower truncated conical hole, and a plurality of lower slits 11. The anchor female screw member 12 having the above-mentioned anchor screw member 12 is inserted, and the expansion truncated cone body 13 is fitted into the lower crest conical hole of the anchor female screw member 12, and the anchor female screw member 12 is directed toward the bottom of the anchor hole 9. By being struck, the circumference of the lower part of the female anchor thread member 12 is expanded in diameter by the truncated cone 13 and is engaged with the hole wall of the anchor hole 9 by biting into the hole wall.

The mounting plate 2 of the water stop material 4 is the arch bridge deck 1
It is placed so as to extend along the side of the upper surface, and is arranged so that the water stop plate 3 is located on the outside, and the through hole 7 of the mounting plate 2 matches the female anchor thread member 12. A steel band-shaped holding plate 14 having a large number of through-holes for bolt insertion is placed on the top surface of the mounting plate 2, and bolts 6 are inserted through the band-shaped holding plate 14 and the mounting plate 2.
is screwed into the anchor female screw member 12, and the mounting plate 2 is tightened and fixed to the upper surface of the floor slab 1 by the bolts 6 and the band-shaped holding plate 14, and the water stop ridge 8 at the lower part of the mounting plate 2 is pressed and deformed. has been done.

[Effect of idea]

This idea is structured as described above, so
This produces the effects described below.

A water stop material 4 consisting of a mounting plate 2 and a water stop plate 3 rising upward from one side of the mounting plate 2 is placed so as to extend along the upper surface of the side of the arch bridge deck 1,
To easily install a water stop part on the side of the upper surface of an arch bridge deck 1 by a simple means of tightening and fixing the mounting plate 2 to the arch bridge deck 1 with bolts 6 inserted therein. Since at least the part of the mounting plate 2 that is in contact with the deck slab 1 is made of a soft elastic material, it is possible to reliably shut off water between the water-stopping material 4 and the upper surface of the arch bridge deck 1. Since the water stop plate 3 includes the hard material layer 5, the water stop plate 3 has good shape retention.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention,
Fig. 1 is a longitudinal sectional front view of a water stop device for the top surface of an arch bridge deck, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a view of an arch bridge deck equipped with a water stop device of this invention. FIG. 4 is a longitudinal sectional perspective view showing a first example of a water-stopping material that can be used in an embodiment of this invention, and FIG. 5 is a second example of a water-stopping material that can be used in an embodiment of this invention. FIG. In the figure, 1 is the arch deck slab, 2 is the mounting plate,
3 is a water stop plate, 4 is a water stop material, 5 is a hard material layer, 6 is a bolt, 7 is a through hole for bolt insertion, 8 is a water stop ridge, 9
is an anchor hole, 12 is an anchor female screw member, 14
is a strip-shaped presser plate.

Claims (1)

[Scope of utility model registration request] A horizontal mounting plate 2 is installed on the upper side of the arch bridge deck 1.
A water stop material 4 consisting of a water stop plate 3 rising upward from one side thereof is placed so as to extend in the longitudinal direction of the floor slab, and at least the portion of the mounting plate 2 that contacts the floor slab is The water stop plate 3 is made of a soft elastic material, and includes a hard material layer 5, and the mounting plate 2 is attached to the upper surface of the arch bridge deck, which is tightened and fixed to the arch bridge deck 1 by bolts 6 inserted therein. water stop device.