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
CN101424071AInactive Publication Date: 2009-05-06CCCC HIGHWAY CONSULTANTS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CCCC HIGHWAY CONSULTANTS
Publication Date
2009-05-06
Estimated Expiration
Not applicable · inactive patent

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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.
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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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