[Retracted] Mechanical Performance Analysis of Steel Beam-Column Joints in Fabricated Multirise Steel Structures after Fire

Figure 4

Variation of bending moment at the bottom of the reinforced column under different axial compression ratios. (a) Axial compression ratio n = 0.4; (b) axial compression ratio n = 0.6; (c) axial compression ratio n = 0.8; (d) axial compression ratio n = 1.0.

(a)

(b)

(c)

(d)