Behavior of Concrete-Filled Steel Tube Columns Subjected to Axial Compression

Table 7

The ultimate strength calculation results of relevant specifications.

Specimens	Ultimate load ()	NBR 8800 and EC4 ()	AISC ()	GB50396-2014 ()
PL-2	406	412	419	429
NS-A-2	830	493	479	560
NS-B-2	885	566	535	603
RN-2	560	430	416	465
RS-A-2	895	493	479	596
RS-B-2	1190	566	535	639
PL-1	480	513	519	530
NS-A-1	800	428	409	478
RS-A-1	895	428	409	478
RS-B-1	1125	452	474	498