Composite anchoring structure on guyed tower end of cable-stayed bridge

An anchoring structure and end plate technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of increasing high-altitude prestressed construction links, reducing structural durability, and slow construction speed, so as to improve bearing capacity and construction speed , cost-saving effect
CN101629408AInactive Publication Date: 2010-01-20TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2010-01-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a composite anchoring structure on the guyed tower end of a cable-stayed bridge. A plurality of steel anchor boxes with end box chambers are overlapped, and cast concrete with reinforcing bars penetrating through pinholes is arranged on the end box chambers. The box chambers are arranged on both ends of a steel anchor box and share the same end plate, a faceplate is arranged correspondingly opposite to the end plate, the end plate and the faceplate are connected by lateral plates on both sides to form a box chamber structure, the lateral plates are provided with a plurality of pinholes, and through holes are arranged on the lower part of the faceplate so that guyed sleeves can penetrate through. The invention accelerates the construction speed of a bridge tower, is convenient to manufacture, and has favorable durability.
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Description

technical field

[0001] The invention belongs to the technical field of bridge engineering, and in particular relates to an anchoring structure of a cable-stayed tower end of a cable-stayed bridge. Background technique

[0002] The cable force of the long-span cable-stayed bridge is relatively large, so that the anchorage area of ​​the cable tower is subjected to a strong concentrated force. If the prestressed cable tower anchoring method is used, a considerable amount of hoop prestressing force needs to be configured to meet the force requirements, and the difficulty of construction and later maintenance will increase accordingly. Therefore, long-span cable-stayed bridges are anchored by steel anchor boxes or steel anchor beams combined with concrete tower walls. Steel anchor boxes or steel anchor beams are used to bear most of the horizontal force, and concrete is used to bear most of the vertical force. The advantages of the two materials meet the stress requirements of t...

Claims

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