Supporting system of long span stayed-cable bridge

A cable-stayed bridge and long-span technology, applied to cable-stayed bridges, bridges, bridge forms, etc., can solve the problems of huge bridge construction costs, achieve the effects of suppressing earthquakes, improving damping, and reducing bending moments

Inactive Publication Date: 2009-05-06
CCCC HIGHWAY CONSULTANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using laterally rigid limit bearings, the pier body and foundation of the transition pier need to be designed to be very strong enough to resist strong lateral loads, and the bearing itself also needs to be specially designed, which makes the bridge construction cost huge

Method used

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  • Supporting system of long span stayed-cable bridge
  • Supporting system of long span stayed-cable bridge
  • Supporting system of long span stayed-cable bridge

Examples

Experimental program
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Embodiment Construction

[0024] The specific embodiment of the present invention will be further described in detail in conjunction with the accompanying drawings.

[0025] Such as figure 1 , 2 As shown, a kind of long-span cable-stayed bridge supporting system of the present invention is made of: main girder 1, bridge tower 2, stay cable 3, transition pier 4, horizontal wind-resistant support 5, vertical band limit function Viscous damper 6, longitudinal sliding support 7 with limited transverse stiffness, transverse damper 8 and telescopic device 9 are composed of nine major parts. The main girder 1 and the bridge tower 2 are connected by a transverse wind-resistant support 5 and a viscous damper 6 with a longitudinal limit function. The transverse damper 8 is connected, and the two telescopic devices 9 are arranged between the two ends of the main girder 1 and the end close to the main girder 10 and the main girder 1 of the approach bridge.

[0026] Such as image 3 , Figure 4 As shown, the v...

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Abstract

The invention discloses a support system for a long-span cable-stayed bridge, which relates to the technical field of bridge engineering. The support system consists of nine parts including main girders, bridge towers, stay cables, transitional piers, transverse wind resisting bearings, longitudinal viscous dampers with limiting function, longitudinal sliding bearings with limited transverse rigidity, transverse dampers, and telescopic devices. Compared with the prior support system for the long-span cable-stayed bridge, the support system of the invention has the characteristics that the longitudinal viscous dampers with limiting function are arranged between the main girders and the bridge towers; and the longitudinal sliding bearings with limited transverse rigidity and the transverse dampers are arranged between the main girders and the transitional piers. The support system provides effective rigidity and damping for the long-span cable-stayed bridge to ensure that the static force and the dynamic force responses of the bridge are controlled in an acceptable scope; the structural stress is definite; and the applicability is strong.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, and relates to a supporting system of a long-span cable-stayed bridge. Background technique [0002] The emergence of modern cable-stayed bridges and suspension bridges has continuously improved the ability of humans to cross large rivers, rivers, and oceans. As the span increases, the bridge components develop in a higher, longer, and softer direction, and the structural characteristics show a trend of decreasing stiffness and lower damping. The effect is becoming more and more sensitive. [0003] Long-span cable-stayed bridge is a structural form with large spanning capacity, and its longitudinal support system includes the main girder and bridge tower rigid connection system, the full floating system, and the damping system (with viscous dampers or hydraulic buffers). ), damping and elastic combined system, etc. The rigid connection between the main girder and the bridge tower is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D11/04
Inventor 张喜刚裴岷山刘高王毅袁洪吴寿昌朱斌
Owner CCCC HIGHWAY CONSULTANTS
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