Table 8 The vertical displacements of measurement points 1 and 2 under AC1 and AC2.

From: Study on secondary collapse of the bottom frame masonry structure in semi-ruined state based on FEM–FDEM

Aftershock cases

AC1-1 (mm)

AC1-6 (mm)

AC1-10 (mm)

AC2-1 (mm)

AC2-5 (mm)

AC2-9 (mm)

The vertical displacement of point 1

376

641

408

398

634

413

The vertical displacement of point 2

398

375

415

425

575

329