Static load test of RC T-beam bridge flexural strengthening with externally bonded steel plates

Abstract

Abstract Externally bonding steel plates is a common method for strengthening old bridges. Structural features and diseases of T-beam bridge are described. The strengthening project of Erdao River Bridge was taken as an example. Based on static load test, changes of deflection and stress are studied at the bottom of RC T-beams strengthened by externally bonding steel plates in the loading process. Numerical simulation is also carried out. The results of static test show that bearing capacity, bending stiffness and deformation can be improved of T-beams strengthened with bonding steel plates. This paper provides good engineering practice experience for the reasonable application of bridge with externally bonding steel plate strengthening method.