The timber frame work construction has the majority of the house in Japan. These buildings have the very large slipping properties in the hysteresis characteristics. In this paper, the seismic peak response forecast was verified about a single-degree-of-freedom (SDOF) elasto-plastic system of slip hysteresis characteristics. The seismic peak response forecast was done by the elasto-plastic response analysis, the property of energy conservation, and the equivalent linearization. And the accuracy of each forecast method was verified.
Result, the property of energy conservation doesn't consist when the slip ratio of slip hysteresis characteristics is large, and the equivalent linearization can forecast the seismic peak responses for slip hysteresis characteristics.