A SEISMATIC STUDY ON THE AQUEDUCT BRIDGE

摘要

In this paper, the frequencies, dynamic displacement and dynamic stress of aqueduct bridge subjected to earthquake loads are calculated by numerical methods. The results show that the dynamic characteristics and seismic responses of the bridge change with the variance of the amplitude, incident direction, predominant frequencies of earthquake acceleration, meanwhile, the properties of foundation materials of the structure and the quantity of water body on the top of aqueduct structure are also influence on the dynamic characteristics and seismic responses of the structure. Basing on the computational results, different design options and precautionary measures for the aseismatic design and construction are proposed.