SU1645335A1

SU1645335A1 - Asymmetrical suspension bridge

Info

Publication number: SU1645335A1
Application number: SU894691510A
Authority: SU
Inventors: Борис Григорьевич Ерунов
Original assignee: Казанский инженерно-строительный институт
Priority date: 1989-04-06
Filing date: 1989-04-06
Publication date: 1991-04-30

Description

(21)4691510/33(21) 4691510/33

(22)06.04.89(22) 04.06.89

(46) 30.04.91. Бюл. 16(46) 04.30.91. Bul sixteen

(71)Казанский инженерно-строительный институт(71) Kazan Institute of Civil Engineering

(72)Б.Г.Ерунов(72) B.G. Erunov

(53)624.523(088.8)(53) 624.523 (088.8)

(56)Качурин В.К. и др. Проектирование выс чих и Байтовых мостов. М.: Транспорт, 1976, с.7, рис.1-2, с.42, рис.П-24.(56) Kachurin V.K. et al. Designing Higher and Byte Bridges. M .: Transport, 1976, p.7, fig.1-2, p.42, fig.P-24.

(54)АСИММЕТРИЧНЫЙ ВИСЯЧИЙ МОСТ(54) ASYMMETRIC HANGING BRIDGE

(57)Изобретение относитс к строительству мостов, в основном больших пролетов. Цель изобретени - повышение статической и динамической жест- костей и исключение S-образных прогибов балки жесткости. Асимметричный вис чий мост включает пилоны, несущие(57) The invention relates to the construction of bridges, mainly large spans. The purpose of the invention is to increase the static and dynamic stiffness and exclude S-shaped deflection of the stiffness beam. The asymmetrical bridge includes pylons carrying

-тросы 1 и балку жесткости, выполненную составной из блоков 2 и 3 и под%- cables 1 and stiffness beam made composite of blocks 2 and 3 and under%

VV

вешенную к тросам I подвесками 4, параллельными в фасадной плоскости. По крайней мере один, но не более двух блоков 3 балки жесткости, расположенных в одной из четвертей пролета (L) асимметрично по отношению к середине пролета моста, выполнены с массой не менее чем в три и не более чем в шесть раз превышающей массу остальных блоков. Несущие тросы расположены по кривой, соответствующей эпюре изгибающих моментов от собственного веса балки жесткости и асимметричной относительно середины пролета моста и могут быть присоединены к блокам 3 повышенной массы. Пилоны могут быть выполнены разной высоты Ьд и hp, при этоим лини 5, соедин ю-; ща головы пилонов, расположена подhung to the cables I suspension 4 parallel to the front plane. At least one, but no more than two blocks 3 stiffening beams, located in one of the quarters of a span (L) asymmetrically with respect to the mid span of the bridge, are made with a weight not less than three and not more than six times the weight of the other blocks . Bearing cables are located on a curve corresponding to the curve of bending moments from the own weight of the beam stiffness and asymmetrical about the middle of the span of the bridge and can be attached to the blocks 3 increased weight. Pylons can be made of different heights LD and hp, with this line 5, connecting the Yu-; head pylons located under

ё (Лё (L

углом U « ф-лы, 2 ил.angle U "f-ly, 2 Il.

Claims

1-3 to horizontal. 2 hp

&

СПъ SP

00

WITH

ate

FIG. 2

I-Yubo refers to the construction of a grave, mainly large spans,

The purpose of the invention is to digest static and dynamic stiffness and eliminate S-shaped deflections of the beam / awning beam.

This facade has an asymmetrical facade on the visggy bridge. FIG. 2 shows the facade of an asymmetrical VISYaHRGP bridge with the attachment of a carrying cable to a stiffening beam and different-sized pillows.

An asymmetrical suspension bridge including pylons (not shown in the drawings), carrying cables 1 vi stiffening beam, is made of composite from sides 2 and 3 and suspended from cables 1 by suspenders A, and aerial in front facade of bone,

At least one, but HR more than two blocks 3 beams of rigidity, located in one of the quarters of span L asymmetrically with respect to the middle of the span of the bridge, are made with a weight not less than three and not more than six times the weight of the other blocks , with the curved edges 1 located along the crooked, corresponding to: - the diagram of the bending moments of the own weight of the beam WP - i. ic tiJ and asymmetric ratio mid

proaiecho bridge.

Blocks 3 of increased mass can be made with a cross section, the moment of inertia of which exceeds the moment of inertia of the cross section of the remaining blocks, 2 by an amount proportional to the ratio of their masses,

Carrier cables 1 can be attached to blocks 3 of increased mass. The pylons can be made different by the height of hh and hn. at the same time, it kinked, connecting pylon pylons.

located at an angle (Jf 1-3 ° to the horizontal.

The use of the asymmetric structure of the suspension bridge improves the dynamic characteristics of the bridge and reduces the consumption of materials for the construction of the pylons.

About About

. An asymmetrical suspension bridge, including pylons, supporting cables and a stiffening beam, is made up of blocks and suspended from grooves by suspensions, nai shlemmmi in the front plane, from which it is. The goal is to increase the clout ™ of Chc-scon and dynamic liquids. nsklk.chg. h) C-oraznpi prognbov 6al-i. n% of the extreme cold is one j, not a tolga, BVX Plokpn beams are rigidly 1 gi, stared in the quarter of the prolog of jLHMTi, which is typical of s. the bridge was made with a mass-mass not less than three and no more than six times the mass of the other blocks, with the bearing tpos arranged in a curve, h) t ggs rij Kli-L esrr bending mi-TiHHTi.4 from its own weight of a particular beam :: asymmetric relative- to the middle of the arrival of the bridge.

2. According to claim 1, there are also differences with those that the blocks are elevated. These are made with a cross section, the inertia of which exceeds the moment of inertia of the cross section of the remaining blocks by an amount proportional to the ratio of their masses.

3, Bridge Popp. 1 and 2, I differ from and there, that the supporting cables are attached to the blocks of increased mass, and the pylons are made of different sizes, with the lineage connecting the gopes at an angle of 1-3 to the horizon B 11.

Figg