Research Article

Assessment of Design and Retrofitting Solutions on the Progressive Collapse of Hongqi Bridge

Figure 14

The collapsed position of the bridges with different pier systems. (a) 2-column pier (D = 1.2 m). (b) 3-column pier (D = 1.1 m). (c) 4-column pier (D = 1.0 m). (d) 5-column pier (D = 0.95 m).
(a)
(b)
(c)
(d)