SU1219704A1 - Floating support for erecting the span structure of bridge - Google Patents

Description

Phg / city /

one

The invention relates to the construction can be used when installing

and

bridge span structures supported by floating equipment.

The purpose of the invention is to reduce the number of pontoons in the scow due to the full use of their buoyancy resource.

FIG. 1 shows Gshavuch support along the bridge, general view; in fig. 2 - the same across the bridge. Wherein. 1, b and h are respectively the length, is the width and height of the individual pontoon, m; h. - pontoon board height, m

The floating support contains a flange of interconnected separate pontoons 1 of a rectangular outline with a superstructure 2 installed on it, upper 3 and lower 4 grillages, reinforcement trusses 5 and extensions 6. The flathead is made in height of two lines 7 and 8, with the pontoons 1 one Rusa shifted along the facade. pontoon (Fig. 1) relative to another Rus for the width of at least one pontoon (Te). Adjacent pontoons of each Rus

12197042

9 are connected to each other, and the pontoons of Rus’s 7 and 8 of different heights are connected by

ten

by

line 10 touch. The transport of the span 11 on the proposed floating support is carried out similarly to that known.

The device of the floating bearing pontoon in the shaft with the displacement of the pontoons of one tier relative to the other allows to fully utilize the buoyancy resource of the pontoons of the lower tusk and reduce their required number in comparison with the known support by the amount

five

dp

Lb

hh (; h-0,4hc.

20

ZlQ: 1 1

where kn is the reliability coefficient;

m

-, calculated vertical load

on a scow, ts;

UY - volume mass of water, t / m; kg is the displacement ratio of the pontoon.

9 are connected to each other, and the pontoons of Rus’s 7 and 8 of different heights are connected by

by

line 10 touch. The transport of the span 11 on the proposed floating support is carried out similarly to that known.

The device of the floating platform of a two-Rus floating support with the displacement of the pontoons of one Rus relative to another allows to fully utilize the buoyancy resource of the lower Rus pontoons and at the same time reduce the required number of them in comparison with the known support by

five

dp

Lb

hh (; h-0,4hc.

ZlQ: 1 1

where kn is the reliability coefficient;

m

-, calculated vertical load

on a scow, ts;

UY - volume mass of water, t / m; kg is the displacement ratio of the pontoon.

//

Or P. Kossey 1240/39

FIG. 2

Compiled by V. Zubkov Tehred I. Veres

Corrector

Circulation 514Subscribe

VNIIPI USSR State Committee

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

Branch PPP Patent, Uzhgorod, st. Project, 4

Proofreader G. Reshetnik

Claims (1)

A FLOATING SUPPORT FOR MOUNTING THE 'SPAN STRUCTURE OF A BRIDGE, including a slab of interconnected individual pontoons of rectangular shape with a superstructure installed on it, upper and lower grillages, trusses ·? lenghts and stretch marks, characterized in that, in order to reduce the number of pontoons in the dashboard by making better use of their buoyancy resource, the dashboard is made in two tiers in height, and the pontoons of one tier are mixed along the facade of the dashboard relative to the other tier to the width of at least one pontoon , adjacent pontoons of each tier are interconnected by bonds, and pontoons of different tiers in height are connected along a line of tangency. SU <„, 1219704> Figure 1