Analysis of Prestressed Concrete Bridge with Virtual Laminated Element Method

The effect of prestressed steel bars on bridge structure is transformed to the equivalent loads,then an approach of analyzing prestressed concrete bridge is presented with virtual laminated element method.Based on an actual bridge,the comparative analytical calculations are done with the proposed approach and the finite element general program Super SAP.The results indicate that the proposed approach can analyze the prestressed concrete bridge with satisfied calculation result,and it has the advantage of less element number,higher calculative efficiency and better suitabitity.