Experimental Research and Theoretical Analysis of the Seismic Behavior of Prefabricated Semirigid Steel Frame with X-Shaped Braces
No obvious phenomenon
The component was slightly audible
The steel pipe wall of the X-shaped connection at the floor-two brace was subjected to compressive deformation and tensile tearing, see Figures 6(a) and 6(b)
The crack of the X-shaped connection at the floor-two brace expanded and broke, see Figures 6(c) and 6(d)
Slight out of plane buckling at the floor-two beam end
Crack occurred at the steel pipe wall of the X-shaped connection at the floor-one brace, see Figure 6(e)
The crack at the connection expanded, and the out of plane buckling of the floor-one beam intensified.
The crack at the connection further expanded and the failure was serious, see Figure 6(f)
The floor-one brace broke at the connection, see Figure 6(g)
The floor-two beam had serious out of plane buckling, see Figure 6(h)
Side column twisted
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