Single-tower self-anchored suspension bridge

A technology of self-anchored suspension bridge and single tower, which is applied in the direction of suspension bridges, bridges, bridge forms, etc., can solve the problems of high price, small scale of self-anchored suspension bridge, and rising overall cost, so as to reduce environmental damage and improve society effect, the effect of reducing processing costs

Inactive Publication Date: 2007-11-28
HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of two cable towers is beneficial to reduce the stress level of the main girder and improve the stability of the overall structure, but there are two problems in the twin towers: (1) the improvement of construction efficiency and the shipping requirements during the construction period cannot be taken into account
If the construction efficiency is to be improved and the construction period shortened, the cable tower and the main beam must be constructed at the same time as much as possible, but the main beam must be erected with a full hall bracket during simultaneous construction, and the full hall bracket will affect shipping
(2) The scale of the self-anchored suspension bridg

Method used

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032]Referring to Fig. 1, Fig. 2, Fig. 3 and shown in Fig. 4, the single-tower self-anchored suspension bridge of the present invention comprises a cable tower 2 and main cable 1, main girder 3 and suspender 4, and the middle part of main cable 1 is supported on cable On the top of the tower 2, both ends of the main cable 1 are fixed on the main girder 3, and the main girder 1 is suspended below the main cable 1 through the boom 4. In a specific embodiment, the cable tower 2 of the main bridge can be designed as a three-column door-type tower column, with upper and lower beams, and there are four main cables 1 of the whole bridge. 4 Adopt flexible high-strength galvanized parallel steel wire cable body. The main girder 3 includes a steel stiffened beam 31 located at the main span of the suspension bridge and a concrete stiffened bea...

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Abstract

The invention discloses a self-anchored suspension bridge with single-tower, comprising a cable tower and main cable, main beam and suspender. The middle part of main cable is supported by the top of cable tower and two ends of main cable are fixed on the main beam. The main beam is hung under the main cable by the suspender. The main beam is mixed beam and the main suspending part is steel stiffing beam. Side-suspending part and anchor-suspending part at two sides of main suspending part are concrete stiffening beams. The steel stiffening beam and the concrete stiffening beam are connected by steel-concrete joint part. Concrete stiffening beam at the steel-concrete joint part is covered by bearing steel plate and the bearing steel plated is fixed with the steel stiffening beam at the steel-concrete joint part. The invention is provided with simple structure, larger suspending ability, considerable economic benefit and durability. When it is built there is no influence to navigation.

Description

technical field [0001] The invention belongs to the field of bridge engineering, in particular to a single-tower self-anchored suspension bridge. Background technique [0002] At present, bridges within the span range of 200-600m mostly use cable-stayed bridge structures and arch structures. With the advancement of technology, self-anchored suspension bridges have appeared in this field as a supplement. If a cable-stayed bridge structure is used, the cost is high because the cable-stayed bridge needs a large span for balance; if an arch structure bridge is used, it can be divided into two types: thrust and non-thrust. If a thrust-free arch is used, It is also necessary to use larger side spans for balance. If a thrust arch is used, a huge foundation must be built, which is costly and unfavorable for environmental protection. In contrast, the self-anchored suspension bridge has both the advantages of the above two structures and avoids the shortcomings of the two structures....

Claims

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Application Information

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IPC IPC(8): E01D11/02
Inventor 胡建华向建军张贵明刘榕李瑜崔剑峰
Owner HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
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