Analysis on long-period seismic responses for long-span bridge structure

Taking a cable-stayed bridge project as background and using ANSYS procedure to make a 3-D finite element model,we take two pieces of usual seismic waves as excitations to study its seismic response.Furthermore,a comparison of structural response under long-period seismic waves and general seismic waves is developed,and also the long-period travelling effect of bridge structure is discussed.As a result,some conclusions which can be used in engineering are obtained.