JPH0138923B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for renovating a side wall of a viaduct, and more particularly, to providing an apparatus for renovating an old side wall with simple steps and a simple configuration.

Conventionally, elevated railway and expressway bridges have concrete side walls at their upper ends in order to provide soundproofing during vehicle travel and to prevent accidents caused by flying stones. The side wall is made of concrete and includes column members spaced apart along the longitudinal direction of the viaduct, bottom members installed on these column members, and a space surrounded by the top surface of the viaduct, the column members, and the bottom members. It consists of a block member that closes.

Therefore, in the long-term use of elevated bridges,
Recently, the deterioration of block members, especially in the coastal areas, has been severe, and repair work is being carried out frequently.

However, since this repair work is complicated and requires removing concrete block members, it has been desired to provide a device for renovating the old side wall in a simple and simple manner.

The present invention has been devised in light of such conventional demands, and its characteristics are as follows:
The old concrete side wall installed at the end of the upper surface of the viaduct is surrounded by column members spaced apart along the longitudinal direction of the viaduct, outer members installed on these column members, and the upper surface of the viaduct, column members, and outer members. An anchor bolt is fixed to the column and the bottom member, a base frame is welded to the anchor bolt, and fixing devices are attached to the base frame to cover the inner and outer surfaces of the side wall. It is at the point where the spandrels are strung through.

Examples of the present invention will be described below with reference to the drawings.
For example, railway rails 2, 2 are laid on the left and right sides of the upper surface of a viaduct 1 shown for railway use, and old concrete side walls 4, 4 are provided at both ends with a base 3 interposed therebetween. The side wall 4 includes column members 5 spaced apart along the longitudinal direction of the viaduct 1, bottom members 6 installed on these column members 5, and the upper surface of the viaduct 1.
It is composed of a pillar member 5 and a block member 8 that closes a space 7 surrounded by a bottom member 6.

Driving-type first anchor bolts 9 are fixed to the inner and outer surfaces of the outer member 6, respectively, and the anchor bolts 9 are spaced apart from each other in the longitudinal direction of the outer member 6. Further, second drive-in anchor bolts 10 are fixed to the column member 5 at approximately equal intervals in the vertical direction, and a horizontal frame 11 and a vertical frame 12 are attached to the protruding ends of these anchor bolts 9 and 10 on the outer surface side of the side wall 4. A base frame 13 formed in the shape of a lattice frame is welded. Vertical frame 12
The lower end is fixed to the upper surface of the base 3 via an angled mounting piece 13' and a third anchor bolt 14. The horizontal frame 11 is provided outside the vertical frame 12, and a spandrel 16 is stretched on the outer surface of the horizontal frame 11 via a fixture 15 to cover the outer surface of the side wall 4.

On the other hand, on the inner surface of the side wall 4, a base frame 13 formed of a horizontal frame 11 is welded to the protruding ends of the anchor bolts 9, 10.
A spandrel 16 is stretched on the outer surface of the side wall 4 via a fixture 15 to cover the inner surface of the side wall 4.

A support rod 17 such as a through bolt is connected to a block member 8.
Both protruding ends of this support rod 17 penetrate the base frame 13 inside and outside the side wall 4,
13, and these two base frames 1
Connect and integrate 3 and 13.

In the illustrated example, the base frame 13 is made of angle material such as iron, but it may also be made of channel material or the like.

The spandrel 16 is a vertically elongated aluminum alloy member, and has an engaging protrusion 18 at one end in the longitudinal direction of the viaduct 1.
It has an engaging recess 19 at the other end, and the adjacent spandrels 16, 16 are connected without a gap by fitting the engaging protrusions 18 and the engaging recess 19, and the connecting portion of the spandrels 16, 16 is fixed to the base frame 13 with blind rivets or screws. In this case, the spandrel 16 may be constructed of a plurality of panels in the vertical direction.

The side walls 4, the base frames 13, 13, and the upper parts of the spandrels 16, 16 are made of aluminum alloy caps 20.
The cap 20 is installed on base frames 13, 13 inside and outside the side wall 4. In addition, the upper ends of the spandrels 16, 16 are fitted into the fitting grooves 21, 21 formed at the bottom of both widthwise ends of the cap 20, respectively, thereby preventing rainwater from entering the space surrounded by the spandrels 16, 16 and the cap 20. Prevented.

Aluminum alloy drainage members 21, 21 are fixed to the lower portions of the spandrels 16, 16, and the lower portions of the side walls 4 are covered.

Next, the construction procedure of the above-mentioned elevated bridge side wall renovation equipment will be explained. First, anchor bolts 9 and 10 are fixed to the column members 5 and the bottom member 6 by driving etc., and the base frame 13 is attached to the anchor bolts 9 and 10. weld. In this case, after the base frame 13 is welded, anchor bolts 9 and 10 may be further fixed to required locations on the column member 5 and the bottom member 6 to be welded to the base frame 13. At any of the above steps, the support rod 17 is passed through the block member 8, and the support rod 1
Both protruding ends of 7 are welded to base frames 13, 13, respectively. Next, the spandrel 16 is attached to the engaging protrusion 1
8 and the engagement recess 19, and are sequentially fixed and stretched to the base frame 13 via the fixture 15. Kasagi 20
is installed on the base frames 13, 13 either before or after the spandrels 16 are stretched.

According to the present invention, when the side wall 4 on the viaduct 1 is renovated, the spandrel 16 can be attached to the base frame 1 without removing the block member 8 of the old side wall 4.
3, the side wall 4 can be re-covered and renovated, and this refurbishment work can be accomplished more easily than if the block member had been removed, which is advantageous. In addition, the base frame 13
are welded to the anchor bolts 9 and 10 fixed to the sturdy column member 5 and the bottom member 6, so the spandrel 16 fixed to the base frame 13 is firmly supported by the side wall 4, and this structure This is an extremely useful invention because it can be achieved simply.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall vertical sectional view, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a view taken in the direction of the arrows in Fig. FIG. 5 is a plan view taken along the - line in FIG. 2. 1... Viaduct, 4... Side wall, 5... Column member, 6
... member, 7 ... space, 8 ... block member, 9, 10 ... anchor bolt, 13 ... base frame, 15 ... fixture, 16 ... spandrel, 17 ... support rod, 20 ... ...Kasagi.

Claims (1)

[Claims] 1. The old concrete side wall installed at the end of the upper surface of the viaduct includes column members spaced apart along the longitudinal direction of the viaduct, 〓 members constructed on these column members, and these upper surface of the viaduct, pillar members, and 〓 members. An anchor bolt is fixed to the column and the bottom member, a base frame is welded to the anchor bolt, and a block member is attached to the base frame to cover the inner and outer surfaces of the side wall. A device for renovating a side wall of a viaduct, characterized by spandrels being stretched through fixing devices.