Abstract
A rational design method of an unseating prevention cable is not established yet especially for that with a shock absorber. This study aims to clarify a dynamic property of an unseating prevention cable with a shock absorber considering its deformation limit and nonlinearity. The results show that the shock absorber can be designed according to the law of conservation of energy. New check procedure for the cable to support the falling girder is also shown in this paper. Large inelastic shock absorber enables to use a thin cable, however, the thin cable is not capable to stop the girder from falling even with its damping effect.
