268 S. Yousefianmoghadam et al. Fig. 33.1 Test structure (view from west side) Fig. 33.2 Second floor plan view showing extension building and acceleration positions 33.2 Test Structure The structure, shown in Fig. 33.1, was a 10-story reinforced concrete (RC) structure with a slab-column structural system and RC infills in the exterior frames. The building was built in 1910s in Utica, NY and characterized by overall length of 48.8 m (160 ft), width of 24.4 m (80 ft), and height of 25.9 m (85 ft). The plan view of the second floor can be seen in Fig. 33.2. This is similar to the plan view of other floors. On the south side of the building, a five-story clay masonry structure was attached to it to house an elevator shaft and service rooms. More detailed information about the structure can be found in [18]. 33.3 Dynamic Testing 33.3.1 Damage States During the testing sequence, six exterior RC walls were removed from the second and third stories of the structure to simulate damage. The walls were removed, two at a time, in three stages, as shown in Fig. 33.3a, introducing four damage states. The first damage state (DS0) was the condition of the structure at the beginning of the tests in which the exterior walls in the first, second, and fifth stories, in the north, west, and south sides were removed for demolition purposes. The second damage state
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