Methodology for determining the bearing capacity of tensioned tubular reinforced concrete elements

Figures & Tables

Steel pipe (according to DSTU 8943:2019)			Reinforcing bars (in accordance with DSTU 3760:2019 Reinforcing bars for reinforced concrete structures. General technical conditions)		Carrying capacity
Section	Astr A_s^{tr} , cm²	Steel economy by 1 m.p., kg	D, mm	Ascn A_s^{cn} , cm²	N_y, kN	N_u, kN
1	2	3	4	5	6	7
∅83x2	5.09	1.95	1 ∅25	4,909	340.5	399.0
∅83x2.5	6.31	2.40	1 ∅25	4,909	369.2	441.7
∅83x3	7.53	2.87	1 ∅28	6,158	454.0	540.7
∅89x2	5.46	2.08	1 ∅25	4,909	349.21	412.0
∅89x2.5	6.78	2.59	1 ∅28	6,158	436.43	514.4
∅89x3	8.10	3.09	1 ∅32	8,042	552.25	645.4
∅89x3.5	9.39	3.58	1 ∅32	8,042	582.55	690.54
∅83x2	5.09	1.94	2 ∅18	5.09	348.66	407.20
∅83x2.5	6.31	2.40	2 ∅18	5.09	377.33	449.9
∅83x3	7.53	2.87	2 ∅22	7.60	518.95	605.5
∅89x2	5.46	2.08	2 ∅18	5.09	357.4	420.2
∅89x2.5	6.78	2.56	2 ∅22	7.60	501.33	579.3
∅89x3	8.10	3.08	2 ∅22	7.60	532.35	625.5
∅89x3.5	9.39	3.58	2 ∅25	9.82	662.56	770.55
∅89x4	10.67	4.07	2 ∅25	9.82	692.6	815.35
∅89x4.5	11.93	4.55	2 ∅25	9.82	722.25	859.45
∅114x2.5	8.76	3.36	2 ∅25	9.82	647.0	748.5
∅114x3.0	10.45	3.98	2 ∅25	9.82	687.47	807.65
∅114x3.5	12.15	4.63	2 ∅28	12.32	839.9	979.65
∅114x4	13.81	5.26	2 ∅28	12.32	878.7	1037.4
∅127x3.5	13.56	5.17	2 ∅28	12.32	863.0	1019.0
∅127x4	15.44	5.89	2 ∅28	12.32	907.2	1084.8
∅140x3.5	15.00	5.70	2 ∅28	12.32	896.9	1069.4
∅140x4	17.08	6.51	2 ∅32	16.08	1124.9	1321.4
∅152x3.5	16.32	6.20	2 ∅32	16.08	1107.1	1294.8
∅152x4	18.59	7.11	2 ∅32	16.08	1159.8	1374.2
∅159x3.5	17.09	6.52	2 ∅32	16.08	1125.21	1321.75
∅159x4	19.47	7.42	2 ∅32	16.08	1181.1	1405.0