Asymmetric longitudinal slope vertical curve bridge structure and design method and device thereof
By rotating the vertical curve of the tie rod to coincide with the vertical line, the problems of complex design and difficult processing of asymmetric vertical curve bridges are solved, and the design steps are simplified and manufacturing efficiency is improved.
CN119670204AActive Publication Date: 2025-03-21CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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Patent Information
- Application Number
- CN202411742851.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-11-29
AI Technical Summary
Technical Problem
In the prior art, the design of asymmetric longitudinal slope vertical curved bridges is complex, and the structure processing and manufacturing is difficult, resulting in low design and manufacturing efficiency.
Method used
By rotating with either end point of the vertical curve of the tie rod as the rotation origin, the axis of symmetry coincides with the plumb line, thereby designing the sling and arch ribs in a symmetrical design, simplifying the design steps and facilitating pair processing.
Benefits of technology
The design steps are simplified, the workload and probability of errors in design and manufacturing are reduced, the overall efficiency is improved, and the overall benefits are significantly improved.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a vertical curve bridge structure with asymmetric longitudinal slopes and a design method and device thereof, and relates to the technical field of bridge design. The design method comprises the steps that any end point of a tie bar vertical curve serves as a rotation original point, and the other end point is rotated by a set angle until the connecting line of the two end points is horizontal; according to the vertical curve of the rotated tie bar, determining an arch rib and all slings to form a whole vertical curve bridge structure; and by taking any end point of the vertical curve of the tie bar as a rotation original point, reversely rotating the overall set angle of the vertical curve bridge structure until the two end points of the vertical curve of the tie bar are respectively overlapped with the two fulcrums. The invention further provides a design device for implementing the design method and a bridge designed through the design method. After the vertical curve of the tie bar is rotated by taking any end point as the rotation original point, the symmetry axis of the vertical curve coincides with the plumb line, so that the sling and the arch rib can be designed in a symmetrical design mode, and the design and manufacturing difficulty is greatly simplified.
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