Further shake table tests were conducted to examine the seismic performance of unit houses (prefabricated metal houses). A specimen comprising 4 unit-house units connected vertically and horizontally was subjected repeatedly in the long-side direction to the JMA Kobe record. The nonstructural, external wall panels increased the strength of the specimen twofold. The energy dissipated by repeated slipping of the slip-critical bolted connections equaled 88% of the total energy dissipated by the structural frame.
