Large-span railway desk type concrete arch bridge structure

A large-span, concrete technology, applied in the field of bridge construction, can solve the problems of poor coordination between the upper structure of the arch and the main arch ring, many columns on the arch, and limited lateral stiffness, so as to reduce the construction difficulty and construction risk, reduce the project cost, Reasonable effect of structural stress
CN102797218AInactive Publication Date: 2012-11-28CHINA RAILWAY ERYUAN ENG GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY ERYUAN ENG GRP CO LTD
Publication Date
2012-11-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a large-span railway desk type concrete arch bridge structure. When transverse and longitudinal rigidities and stresses of the arch bridge structure are preferably satisfied, construction difficulties and construction risks of a main arch ring and an arch structure can be reduced, and engineering cost is greatly reduced. The large-span railway desk type concrete arch bridge structure comprises the main arch ring (1), a border pier (21), an arch beam (3), an arch column (4) and an arch support foundation (5), wherein arch feet on two sides of the border pier (21) and the main arch ring (1) are supported on the arch support foundation (5); the arch beam (3) is supported on the main arch ring (1) by the arch column (4). The main arch ring (1) is equal-height single-box and multi-chamber section box-like plate arch; the arch top of the main arch ring is an equal-width section (11); and arc foot parts close to two sides of the main arch ring are linear widened sections (12). The border pier (21) forms a border pier T structure (2) together with a T structure beam (22) fixedly connected with the top end of the border pier (21); and the arch beam (3) is a multi-span continuous beam.
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Description

technical field

[0001] The invention relates to a bridge structure, in particular to a large-span railway top-supporting concrete arch bridge structure for a passenger-dedicated railway crossing a "V"-shaped canyon terrain in a mountainous area. Background technique

[0002] Passenger-dedicated railway bridges have high rigidity requirements. Among the various types of bridges, cable-stayed bridges and suspension bridges are difficult to improve their own rigidity and have large temperature deformation, so it is difficult to meet the relevant requirements of high-speed train operation. As a commonly used bridge type, the arch bridge not only has a large spanning capacity and overall rigidity, but also can be well combined with the canyon terrain. Concrete arch bridges, in particular, have many advantages, such as high rigidity, strong bearing capacity, little influence by temperature changes, low construction cost, and small post-maintenance and repair workload. According t...

Claims

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