一种减隔震支座的设计方法及系统
By constructing a finite element model to obtain the equivalent linear stiffness of seismic isolation bearings, the seismic design of railway bridges is optimized, solving the safety assessment and control issues of train and bridge systems during earthquakes, and improving design efficiency and traffic safety.
CN115169166BActive Publication Date: 2026-07-17CHINA RAILWAY MAJOR BRIDGE RECONNAISSANCE & DESIGN INSTITUTE CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY MAJOR BRIDGE RECONNAISSANCE & DESIGN INSTITUTE CO LTD
- Filing Date
- 2022-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies in railway bridges fail to effectively consider the train, seismic isolation bearings, and bridge as a system for seismic design, resulting in insufficient assessment and control of bearing operation status and train safety during earthquakes.
Method used
By constructing a finite element model, the equivalent linear stiffness of the seismic isolation bearings is obtained, vehicle-bridge dynamic analysis is performed, and design parameters are optimized to improve driving safety and bridge safety.
Benefits of technology
This improved the accuracy of seismic isolation bearing design parameters, enhanced the accuracy of vehicle-bridge dynamic analysis, reduced the impact of earthquakes on train operation safety, and improved design efficiency.
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Abstract
本申请涉及一种减隔震支座的设计方法及系统，涉及铁路桥梁工程技术领域，包括分别根据各个地震工况下减隔震支座的内力‑位移变形关系处理得到等效线性刚度。将不同地震工况下减隔震支座的等效线性刚度代入车桥结构的第二有限元模型进行进行车桥动力分析，得到车桥响应结果，从而校准减隔震支座的设计参数。本申请通过不同地震工况下减隔震支座的内力‑位移变形关系，得到不同地震工况下减隔震支座的等效线性刚度，方便桥梁设计人员使用等效线性刚度数据构建包含减隔震支座的第二有限元模型，能够在模型准确模拟减隔震支座，极大的提高了设计工作效率，利用第二有限元模型指导桥梁设计和运营管控，可以降低或避免地震对列车行车安全的影响。
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