1. 2. 3. 9 RR lA 4. LU 5. IT 1 unl 6. TT 3 SketchUp 3 3 7. 3 Eh 1 CAD 8. 3 IT 3 2 3 9. HH IT IT 10. 3 4 TT cAD 11. 30 000m 10 000m 12. CAD EN 1 IT BELCANEWS 2010 9 VoL 22 2 24 NETWORK TOKYO 2018 7 VoL 497 13. CAD SketchUp Google 3 CAD 1 3 4 SketchUp 5 IT 14. E 2 4 25 149 5 15. 6 BIM 3 BIM 16. IT EE a A B C D 17. 1T IT NR TT 18. E IT lt 1 2 R 1 1 19. 1 IT UBA IT 20 2 EA 4 BIM Building Information Modeling 2 3 3