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1 3 1 Vol CAA I Transactions on Intelligent Systems Feb. 2008, (,210093) :.,; 3., 3. :; ; ; ; : TP391 :A : (2008) A system f or automatic generation of 3D building models with quantitative,reinf orced lofting, and construction management applications YAN G Ruo2yu, CA I Shi2jie ( State Key Laboratory of Software Novel Technology, Nanjing University, Nanjing , China) Abstract :This paper proposes a systematic met hod for improving the intelligence and automation of archi2 tect ural software. First, t his method implement s automatic interpretation of 2D construction drawings. Based on t he analysis, a 3D2digital model wit h bot h geometrical and syntactic information is generated. Then, using t his model, t he following t hree automatic applications are run : quantity survey, 3D steel rein2 forced lofting and visualization, and network plan generation for construction p rogress management. This paper gives a t horough introduction to effective design and implementation of t he above met hods, and com2 pares them wit h existing workflow met hods. Keywords :construction drawing recognition ; 3D digital building ; quantity survey ; reinforced lofting ; con2 st ructio n management.,, 3. DW G., ( ),,,,., : : ( ). :. E2mail nju. edu. cn..,,,,,,.,, [ 123 ],,,.,,.

2 2 3. 1,,,.,., CAD,,,. : 1) :, 1,,. ; 2) :,, ; 3) :,; 4) : Fig. 1 Flowchart of generation and application of 3D2digital2building 2 :.. 3 : 1) :, / ;2),,.,, [4 ]. 2. 1,- () , ). = +, = +,=AZ az+ {09 az }, ; 2), ; 3) ) ; 2), ; 3) ,,,, 2,,,.,, ( )., :,, ;3) :,.

3 1,: ,.,,., () : 1), ; 2), ; 3),,.,( ), ( ),., V HRecQS V HRecQS ( 3D digital building model, 3DDBM). : 1), X O Y, Z. 4 ; 2),, ( Project Info) ; 3) (Steel Info) ; 4) (Component Info) ; 5), (Neighbor Info). 3 3DDBM ( ).,,.,/ 2., 3DDBM,, [526 ].,

4 3 4 3, Fig. 4 Partial 3D reconstruction result corresponding to Fig. 3, (). H n + 0. 5 lae ( H n lae ).

4 , Fig. 4 Partial 3D reconstruction result corresponding to Fig. 3, (). H n lae ( H n lae ).,: 1) ComponentInfo A ; 2) Neighbor Info A. A ; 3), ; 4) Steel Info A, Project Info, A,. V HRecQS 3DDBM,. 5.,: 1) :,,; 2) ; 3).,, 3DDBM, DDBM,, : ; 1) Component Info A 2) Steel Info A (, ) ; 3) (Pro2 ject Info ),,A ; (X O Y, ), 6.,. X O Y,,. 6 Fig. 6 Beam section and steel 5 Fig. 5 User interface for result checking of column steel 4 3DDBM 4) Component Info ; 5),,; 6),,Project Info,.

1,: 5 4. 2, 7.,, : 1) ; 2) 1/ 6, ; 3), ; 4),Pro2 ject Info,,,. 8 Fig. 8 Partial 3D visualization result of lofting 2), ; 3),,. 5 3DDBM 7 Fig.

5 1,: , 7.,, : 1) ; 2) 1/ 6, ; 3), ; 4),Pro2 ject Info,,,. 8 Fig. 8 Partial 3D visualization result of lofting 2), ; 3),,. 5 3DDBM 7 Fig. 7 Examples of lap and anchorage, 3DDBM.., / /,,. 4. 3,. V HRecQS,.,,,. 8 2 ( ).,. 3. 1),, ;,,. 5. 1,,..,,,.,,.,, DDBM,3DDBM,,,,, ;, 3DDBM,,, ,.,

6 (2 ) (2 ). :1) ;2) ;3) ;4) ;5) ;6) ;7) ;8) ,, ( 9). 9 Fig. 9 Decomposition of construction management 1),,.. 1 () :., ; 2 :. ( 14 ) ; 3 :. 2) ( )... : / : / / / / / : / / / : / / : 1 2 n 3) 3DDBM,,.,: T1 = L tm ( T1 ; L ; tm ) ; :; :2., ( ),,. 4) 3DDBM,, Fig. 10 Generation of network plan drawing,,,

7 1,: 7 (11 (a) )., /,/,,, 11 (b). ()..,...,. 12,2,.,,,,.,. V HRecQS Au2 tocpms(13),3ddbm,. 11 Fig. 11 Examples of network plan drawing 12 Fig. 12 Network plan drawing of multi2layer projection

8 3 13 AutoCPMS Fig. 13 Network plan drawing generated by AutoCPMS 6 CAD,, ( ),.. V HRecQS, 3DDBM ( ).,V HRecQS,., Au2 tocpms, V HRecQS 3DDBM,.,,,, ;,.,,,.. : [ 1 ] TOMBRE K, LAMIRO Y B.

Analysis of research status of engineering drawings recognition and interpretation [ J ]. Journal of Hefei University of Technology ( Natural Science ), 2005,28 (1) :29233. [3 ] KASTU RI R, BOW S T.

HU Jia, YAN G Ruoyu, CAO Yang, et al. 3D recon2 struction technology for architectural structure based on graphics understanding[j ]. Journal of Software,2002,13 (9) :187321880. [5 ],,,. [J ].

8 AutoCPMS Fig. 13 Network plan drawing generated by AutoCPMS 6 CAD,, ( ),.. V HRecQS, 3DDBM ( ).,V HRecQS,., Au2 tocpms, V HRecQS 3DDBM,.,,,, ;,.,,,.. : [ 1 ] TOMBRE K, LAMIRO Y B. Graphics recognition 2 from re2engineering to retrieval [ C ]/ / ICDAR. Edinburgh, U K: IEEE Computer Society,2003. [2 ]. [J ]. (),2005,28 (1) : DON G Yude. Analysis of research status of engineering drawings recognition and interpretation [ J ]. Journal of Hefei University of Technology ( Natural Science ), 2005,28 (1) : [3 ] KASTU RI R, BOW S T. A system for interpretation of line drawings[j ]. IEEE Transactions on Pattern Analy2 sis and Machine Intelligence, 1990, 12 (10) : [4 ],,,. [J ].,2002,13 (9) : HU Jia, YAN G Ruoyu, CAO Yang, et al. 3D recon2 struction technology for architectural structure based on graphics understanding[j ]. Journal of Software,2002,13 (9) : [5 ],,,. [J ] , 19 (6) : YAN G Huafei, YAN G Ruoyu, L U Tong, et al. Com2 puter2aided budgeting technique and software in architec2 ture structure[j ]. Journal of Computer2Aided Design & Computer Graphics, 2007, 19 (6) : [6 ]ZHAN G J P, ANSON M, WAN G Q. A new 4D man2 agement approach to construction planning and site space utilization [ C]/ / Proceedings of 8th International Confer2 ence on Computing in Civil and Building Engineering. Stanford, CA, :,,1977,,,. CAD., 20,SCI EI.,,1944,,, CAD,CAD,. CAD UI.., 5.

124 2008 1999, [3 ] Petri, 25 7, 500, 2003 2004 [4,5 ], 3, (2), 2003, [ 6 ],,, 2 600 341,, [7 ], 569, 26, 26 3 673 ( ) : 2 ; 3 ; 4, ; 5, : (a) ( ) :,,

124 2008 1999, [3 ] Petri, 25 7, 500, 2003 2004 [4,5 ], 3, (2), 2003, [ 6 ],,, 2 600 341,, [7 ], 569, 26, 26 3 673 ( ) : 2 ; 3 ; 4, ; 5, : (a) ( ) :,, 22 4 2008 7 J OU RNAL OF CH IN ESE IN FORMA TION PROCESSIN G Vol. 22, No. 4 J ul., 2008 : 100320077 (2008) 0420123206 1,2, 1,2,3, 1,2 (1., 221116 ; 2., 221116 ; 3., 215006) :,,,,,, : ; ; ; ; ; : TP391