A method for simulating the destruction of a masonry arch bridge
By employing a multi-field analysis method that couples continuum and discontinuous blocks, and combining foundation deformation and hydrodynamic loads, a nonlinear constitutive model for masonry arch bridges was established. This solved the problem of simulating the failure of masonry arch bridges under extreme disaster conditions, and improved the accuracy of safety assessment and risk prediction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA INST OF WATER RESOURCES & HYDROPOWER RES
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to accurately simulate crack propagation, block slippage, and discrete failure of masonry arch bridges under extreme disaster conditions. Furthermore, they fail to take into account the real superposition effects of multiple factors such as foundation deformation and hydrodynamic forces, resulting in low accuracy in bridge structural safety assessment and disaster risk prediction.
A multi-field analysis method coupled with continuum and discontinuous blocks is adopted. By combining the three-dimensional foundation deformation field and the equivalent hydrodynamic load of the structure, a nonlinear constitutive model of masonry is established. The evolution data of structural stress and deformation field are obtained by time-step iterative solution, the failure mode is identified and a safety assessment report is generated.
It has achieved effective simulation of the actual failure process of masonry arch bridges under complex disaster conditions, significantly improving the accuracy of structural safety assessment and disaster risk prediction capabilities, and can accurately reflect phenomena such as crack initiation, propagation and block slippage.
Smart Images
Figure CN122413831A_ABST