Abstract:In order to develop a new type of replaceable energy dissipating structure and establish a rapid recoverable system of bridges after the earthquake, a new type of link beam with corrugated steel web is proposed to apply in the crossbeam or bent cap of bridge piers. Repeated low-period loading tests were conducted on six energy dissipating beams to compare the damage mechanisms and seismic performance parameters, such as hysteresis curves, skeleton curves, and displacement ductility coefficients of specimens with different span-to-height ratios and web forms (corrugated and I-beam).The experimental results indicate that there are three typical failure modes of test specimens: fracture at the weld seam connecting link flange to end plate, fracture at the web and bucking at the flange and the web. As well as the whole specimen failure due to flange buckling in the late loading stage of a wave web link girder. In the case of the same turning angle of each specimen, the energy dissipation capacity of the corrugated steel web link beam is stronger than that of the I-beam, and the corrugated link beam with a small span-to-height ratio has a good load retention capacity and energy dissipation capacity, but its ductility is poorer. Under the same rotation of each specimen, the energy dissipation capacity of specimens with corrugated steel webs is better than that of specimens with I-shaped steel webs. The corrugated weblink beam with smaller span-height ratio has better load retention capacity and energy dissipation capacity, but has less ductility.