Investigation of Snow Load Effects on Modal Parameters of a Steel Structure Roof

Figure 7

Mode shape variations of the simplified model with several additional concentrated masses: (a) 3 concentrated masses on position 2, 4, and 6; (b) 4 concentrated masses on position 1, 3, 5, and 7; and (c) 7 concentrated masses on every position.

(a)

(b)

(c)