Seismic performance analysis of single diagonal-span arch bridge with using lead-rubber-bearings

As the structure of the single diagonalspan arch bridge is particular,the dynamic characteristics and seismic problems attract more attention The seismic performance of structures can be improved significantly via seismic isolation.It is necessary to carry out considerable research on technology of seismic isolation about single diagonalspan arch bridges With practical engineering,based on special finite element model,the effect of dynamic property by LRB of single diagonal-span arch bridge is discussed.On account of existing seismic theory and according to new seismic code comparing seismic performance of two models with E2 earthquake load,the results showed that LRB can effectively reduce the earthquake effect of the single diagonalspan arch bridge,significantly improved the structural seismic performance.