2018建筑业互联网+转型发展白皮书.pdf

+ 2018 + 2018 : ( ) I . 1 1.1 . 1 1.2 . 4 1.3 . 7 . 16 2.1 . 16 2.2 . 19 2.3 . 21 2.4 . 25 2.5 . 29 2.6 3D . 32 2.7 . 36 . 41 3.1 . 41 3.2 . 41 3.3 . 43 3.4 . 46 3.5 . 49 . 57 4.1 . 57 4.2 . 85 4.3 . 109 4.4 . 146 4.5 . 168 4.6 . 177 . 186 5.1 .186II 5.2 . 188 5.3 . 195 1 1.1 2015+1:GB/T 4754-201722 a b 1.1 a 5 b 2 3 5a b 1.2 a 5 b 16 4 a b 1.3 a 1851 b 1931 CADBIMBIMBIM1.2 + 1) + 5 2119952018 3500 36 0.6%50% 2017 2.32016 8.6% 10.2% 50%32008 201540% 2018 209 4 2008,4.02050 22) + 2015 3 5 + ,+ +3) + 2015 5 20255 2025