SU1249093A1 - Method of assembling a suspension bridge - Google Patents

Description

I

The invention relates to a bridge, in particular to methods for installing a Byte bridge.

The purpose of the invention is to reduce the labor intensity and increase the pace of installation.

FIG. 1 shows the installation of two ropes of the lower c in FIG. 2 - installation of the rest of the lower cable and the ropes of the carrying cable; FIG. 3 shows the installation of the central crossbeam on the lower cables and the mounting beam on the ropes of the carrying cable J in FIG. 4 - shifting in the span of the metal structures of the lower structure and assemblies, fastening the suspensions; Fig. 5 shows the connection of lower ropes with hangers and the tensioning of wind farm ropes.

The method of mounting the Byte bridge is carried out as follows.

The pylons 1 are mounted in the design position with the help of cranes or so-wet equipment by turning around the hinge. Then, two lower ropes are rolled out alternately over ca 2 along rsitics 3 mounted on the lower transverse beam of the pylons 1, using the installation rope 4 and winch 5, winding the rope from the drum mounted on the braking device 6 (Fig. 1). on roller hangers 7 (fig. 2) moving along two lower ropes of ca 2, with the help of an assembly rope 8 and two winches 9 they roll out the remaining ropes of the lower RC 2 and ropes of the carrying cable 10, the envelopes 11, mounted on the top of the pylons 1 above the bed 12. The ends of the can comrade plant 2 and 10 m in anchoring the tensioning device 13 and tensioned.

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Then, using a mounting cable 14 (Fig. 3), the trolley. 15 of which is moved along the ropes of the carrying cable 10, the central 5 transverse beam 16 is mounted on the lower ropes of the ca 2 and the mounting beam 17 on the ropes of the carrying cable 10 in the center of the span. The cable-crane lifts the lower ropes along ca 2 for the central cross beam 16 and hangs it on the slings 18 of a given length to the mounting beam 17.

After that, pedestrian bridges 19 (Fig. 4), resting on transverse beams 20 with wind farm ropes 21 attached to them, slide along the lower ropes from two sides along the two lanes, using mounting ropes 22 coming from the winch 9. by increasing them from two sides at pylons 1, and along the ropes of the carrying cable 10, the attachment points 23 of the suspension brackets 24, interconnected by the remote ropes 25, are shifted.

With the help of cable-crane 14, the lower cables along Ca 2 are seldom lifted by the cross beams 20 and the ends of the suspensions 24 are connected to the cross beams 20 (Fig. 5). Then pull the ropes of the wind farm.

The proposed method of installation of the bridge bridge will allow to increase the productivity of installation work, minimize the use of mounting accessories and lifting equipment, increase installation efficiency, reduce labor intensity and increase safety of installation work, since the height work in the bridge span is reduced to a minimum, except for that will allow. reduce the cost of construction and installation work and reduce installation time.

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Editor I. Derbak

Order 4204/28 Circulation 514 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Compiled by V. Dankov

Tehred I.Popovich Proofreader A.T.

Claims (1)

METHOD FOR INSTALLING A HANGING BRIDGE, including installing pylons with roller balancers, rolling them into the span of the lower belt ropes and the carrier cable, tensioning and installing suspension attachment nodes on them, attaching the suspensions to the carrier cable and the lower belt ropes, lower rope tensioning, mounting ropes of the wind farm and span, characterized in that, in order to reduce the complexity and increase the pace of installation, initially at least two of the total number of ropes of the lower belt are rolled in the span, then roller suspensions are installed, with which before rolling the ropes of the carrier cable, the remaining ropes of the lower belt are alternately moved into the span, and after rolling the ropes of the carrier cable, a central transverse beam is installed on the ropes of the lower belt, and the mounting transverse beam is lifted on the ropes of the carrier cable in the center of the span, the ropes of the lower belt behind the central beam and hang it on slings of a given length to the mounting beam, after which they carry out the installation of the span by sectioning building Niya it from pylons to midspan, and before connecting the suspension cables with lower belt last raised to the design position.