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

Figure 11

Typical test phenomenon after earthquakes of level 3. (a) Thin layer of concrete between steel plates of beam end and column at the beam-column joint (J13) falling off. (b) Concrete cover of beam end at the beam-column joint (J14) falling off. (c) Minor horizontal cracks developing at stubs of the second story.

(a)

(b)

(c)