Seismic Analysis Of Multi-span Continuous Bridge Under Non-uniform Excitation

This dissertation is done according to the necessity of seismic response analysisof multi-span continuous bridges under non-uniform excitation.The main contents are as follows:●The researches on seismic response of the bridge under non-uniformexcitation are reviewed, based on the comprehensive reading andunderstanding of related literature home and abroad;●A motion equation under non-uniform excitation is deduced in the form ofabsolute displacement;●An analytical study is conducted to evaluate the longitudinal non-uniformvibration of continuous bridges under earthquake. The effects of someparameters such as the apparent wave velocity, the height of the pier, thedirection the earthquake coming, and the type of the bearing areinvestigated.●The seismic response of multi-span continuous bridges under multi-supportexcitation is analyzed, it shows multiple support excitation is morereasonable.●A multi-span continuous bridge of the south approach of SuTong was usedto analyze the effects of wave passage effect and multiple supportexcitation。...