Anti- Seismic Analysis of Reinforced Concrete Box Type Ribbed Arch Bridge

This thesis introduces the calculation situation of the seismic force of a reinforced concrete box type ribbed arch bridge in Yunnan Province and builds the finite element model; the response spectrum analysis method is adopted and the vibration power character( frequency and type) and seismic force of vertical and transversal bridge are obtained; anti- seismic performance of key sections of bridge are verified,and the anti- seismic method for the anti- seismic design to the weak part of bridge structure is adopted.