Design of Seismic Mitigation and Isolation of Large Aqueduct
CHEN Ling-ling,QIAN Sheng-guo,XU De-yi,CHEN Min-zhong (Yangtze River Scientific Research Institute,Wuhan 430010,China)
Since the weight of the aqueduct together with its inside water is very heavy,the dynamic response of the structure is intensive under the seism action.The structural safety couldn't be guaranteed according to the traditional antiseismic design method,therefore,to make use of the seism isolator is a feasible measure to ensure the safety of the aqueduct-bridge,and to prolong the period and adjust the damp of the aqueduct-bridge is an effective approach to control the vibration of the aqueduct.Due to no design criterion about the aqueduct-bridge to be followed currently,so the isolation principle of the bridge is used for reference and applied to the parameter design of a aqueduct-bridge,and the design process is given at the same time.
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