Research on Energy-Saving Design Method of Green Building Based on BIM Technology

Table 8

Weight of indexes at all levels of energy-saving design effect evaluation system.

Primary index	Weight value	Secondary index	Weight value
Energy-saving design	0.136	Feasibility of design scheme	0.124
		Quality of external protection structure	0.216
		Energy consumption	0.473
Energy consumption	0.247	Lighting condition	0.103
		Energy utilization	0.185
		External environmental conditions	0.327
Daylighting condition	0.315	Indoor lighting condition	0.162
		Light transmittance of external window	0.538
Ventilation condition	0.063	Indoor ventilation	0.178
		Indoor air quality	0.349
		Outdoor ventilation	0.426