Fatigue test study of weathering steel-concrete composite beam under corrosive environment

In this paper, two sets of comparative fatigue tests on weathering steel-concrete composite girders were carried out in the context girder bridges. The load-deflection relationship under loading different environments was investigated contrastively. experimental results show that coupled effect corrosive environment and load, steel still shows obvious corrosion; simple load has no significant stiffness modulus beam, while a weakening concrete is apparently greater than beam.