Investigation on Seismic Performance of Bidirectional Self-Centering Reinforced Concrete Frame Structures by Shaking Table Tests

Figure 15

Typical test phenomenon after earthquakes of level 7. (a) Vertical microcracks at the beam-column joint (J24). (b) Vertical microcracks at the beam-column joint (J16). (c) Gap opening of the column-base joint (J02).

(a)

(b)

(c)