Life Comparative Analysis of Energy Consumption and CO₂ Emissions of Different Building Structural Frame Types

Table 2

Energy consumption and CO₂ emissions, as per I/O table.

Materials	Energy consumptions					CO2 emissions
	Unit	A	B	C	D	Unit	A	B	C	D
Cement	TOE	401.74	373.68	1,074.89	620.64	T-CO2	1,521.89	1,415.57	4,068.35	2,349.07
Sand		7.07	6.58	15.61	9.01		21.21	19.73	50.23	29.00
Gravel		8.12	7.56	17.12	9.88		24.37	22.67	55.08	31.81
Rebar		1,440.81	968.03	3,768.03	1,785.25		5,806.80	3,901.36	15,189.01	7,196.40
Shape steel		78.78	1,016.15	94.56	3,661.69		316.49	4,082.22	379.88	14,709.70
Galvanized steel sheet		—	152.35	—	367.76		—	623.25	—	1,434.36
Steel plate		10.12	98.38	7.82	371.90		40.79	396.54	31.52	1,498.73
Total		1,946.65	2,622.70	4,978.03	6,826.15		7,731.55	10,461.34	19,774.08	27,249.08
Per area	TOE/m^2	0.10	0.14	0.10	0.13	T-CO2/m^2	0.41	0.55	0.39	0.53