Vibration Reduction Performance of Structures with Viscous Dampers under Near-Field Earthquakes

Figure 11

The first three mode shapes of the steel frame and its corresponding periods T1 ∼ T3 in X direction: (a) elastic structure; (b) elastoplastic structure with yield of the first storey; (c) elastoplastic structure with yield of the first to third storeys; (d) elastoplastic structure with yield of the first to sixth storeys.

(a)

(b)

(c)

(d)