Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords

Table 3

Comparison of flexural capacities for tests, simulation, and formula.

Serial number	ρa (%)	Mu^t (kN·m)	Mu^s (kN⋅m)	Mu^c (kN⋅m)	Mu^c/Mu^t	Mu^c/Mu^s
B-1	1.13	69.4	69.5	74.2	1.07	1.07
B-2	1.20	72.8	74.5	76.1	1.05	1.02
B-3	1.64	81.8	85.8	89.5	1.09	1.04
B-4	1.64	82.5	87.5	89.5	1.08	1.02
B-5	1.20	73.5	74.5	76.1	1.04	1.02
CB-1	1.13	—	50.6	49.1	—	0.97
CB-2	1.13	—	51.6	50.0	—	0.97
CB-3	1.13	—	52.4	50.8	—	0.97
CB-4	1.13	—	50.0	49.1	—	0.98
CB-5	1.13	—	50.4	49.1	—	0.98
CB-6	1.13	—	50.6	49.1	—	0.97
CB-7	1.64	—	69.1	67.0	—	0.97
CB-8	2.13	—	86.4	83.0	—	0.96
CB-9	2.59	—	102.2	97.4	—	0.95
CB-10	1.20	—	55.2	51.8	—	0.94
CB-11	1.20	—	55.2	51.8	—	0.94
CB-12	1.20	—	54.5	51.8	—	0.95