Experimental Seismic Response of a Full-Scale Seven-Story Mixed-Use Steel/Wood Apartment Building

摘要

On June 30, 2009 a seven-story building was subjected to a two earthquakes at the world's largest shake table in Miki, Japan. Configured to represent a mixed-use retail and residential structure, the first floor was a new type of innovative steel framing system providing the openness needed for the retail area, with six stories of wood light-frame construction was used for the apartment areas above. This paper addresses Phase I of the testing where all seven stories were engaged. A companion paper will address Phase II, which tested only the upper sixstories of wood light-frame construction. Phase I was tested using two ground motions, with the second largermotion representative of a 665 year return interval- event, under which the building performed very well. Onlyminor damage occurred, with global roof drift at approximately 1% and maximum interstory drifts less than 2%.