Experimental Study on Progressive Collapse Performance of Frame with Specially Shaped Columns Subjected to Middle Column Removal

Figure 6

Details of testing setup and instrumentation. (Note: 1-1 to 1-11: displacement transducers; 2-1 to 2-24: steel strain gauges; 3-1 to 3-17: concrete strain gauges.)

(a) Axis 1

(b) Axis 2

(c) Axis 3

(d) Axis 4

(e) Axis A

(f) Axis B

(g) Axis C