Study on the Safety Evaluation Method of Life-Saving Passage in Building Ruins under the Action of Aftershock

Figure 15

The vertical displacement time history of monitoring points under 28 ground motions (FEMA P695). (a) PGA 0.10 g. (b) PGA 0.19 g. (c) PGA 0.23 g. (d) PGA 0.41 g. (e) PGA 0.69 g. (f) PGA 0.81 g.

(a)

(b)

(c)

(d)

(e)

(f)