Abstract
Friction characteristic is observed at joints of the structures. A practical estimation method of the first excursion probability of such structures subjected to random excitations such as seismic motions is proposed. First, the first excursion probability of structures with friction is obtained from theoretical method and simulation method. Next, when the tolerance level is normalized by the expected value of the maximum response of the structure with friction, the first excursion probability can be estimated independent of natural period and friction force.
