On the Design of High-Rise Buildings for Multihazard: Fundamental Differences between Wind and Earthquake Demand

Figure 6

First mode generalized force for a wind direction angle of 90°: (a) time history and (b) FFT. Note that this mode is in the crosswind direction and the gap between peak loads and the dominant frequency () is less than that with the second mode ( in Figure 7) (54-story building).

(a)

(b)