Study on the Fluid-solid Interaction Mechanism of Caohe Aqueduct in South-to-North Water Diversion Middle Line Project

Based on considering the fluid-soild coupling prblem in aqueduct,the dynamic FEM model of fluid-solid interaction was established by use of Galerkin Method.And the seismic response of Caohe aqueduct structure in the South-to-North Water Diversion Middle Line Project was calculated.The results indicate that seismic response of the aqueduct structure increases with the rise of water level,and so the fluid-solid interaction was of great influences on the seismic response of the aqueduct structure.The calculated resluts could provide good instruction to aqueduct construction and operational management and safety monitoring.