LCI Israel s Launch Tel Aviv, 20 th May, Lean Construction Institute Israel

Transcription

1 LCI Israel s Launch Tel Aviv, 20 th May, 2015 Lean Construction Institute Israel

2 Disclaimer Notice LCI Israel welcomes you to the following presentation: The presenter has allowed us to use these slides with the understanding that they will only be used for educational purposes and not to be copied or distributed in any way not approved by LCI Israel. The slides will be made available for the viewing public in PDF format, on the LCI Israel website, to maintain the integrity of the presentation. Any views expressed in this presentation are those of the presenter and not of LCI Israel. Lean Construction Institute Israel

3 BIM and Lean Construction Achieving Smooth Workflow with Lean and BIM Assoc. Professor Rafael Sacks Lean Construction Institute Israel

4 Contents Smooth Workflow and Waste in construction Lean and BIM Synergies Examples from practice Research tools and techniques Conclusions 4

5 Productivity in Manufacturing vs. Construction in Israel, Productivity Index

6 What is Lean Construction? Creating value for clients Removing waste Smooth flow of operations See 6

7 Two sides of the same coin 7

8 Can you see the Waste here? 8

9 Can you see the Waste here! 9

10 Can you see the Waste here? 10

11 Now can you see the Waste? 11

12 The workflow waste 12

13 Quantifying the Waste Typical apartment baseline 13

14 Quantifying the Waste Work Hours Changes 7% Move between floors 0% Moving blocks 4% Fixing ends 3% Cleaning 10% Rework 11% Cutting blocks 24% Laying blocks 32% Scaffold 2% Marking out 7% 14

15 Workflow and Information The flow of work is dependent on the flow of information Product Information Process Information 15

16 Information related Waste Project managers on high-end projects reported spending up to 60% of their time managing client changes and the resulting complexity of instructions to specialty contractors. Sacks, R., and Goldin, M., (2007). Lean Management Model for Construction of High-rise Apartment Buildings, ASCE Journal of Construction Engineering and Management, Vol. 133 No. 5 pp

17 Lean and BIM Synergy Lean Construction Building Information Modeling (BIM) Sacks, R., Koskela, L., Dave, B. and Owen, R.L., (2010). The Interaction of Lean and Building Information Modeling in Construction, Journal of Construction Engineering and Management, Vol. 136 No. 9 pp

18 Lean Construction Principles Area Principle Flow process Reduce variability Reduce cycle times Reduce batch sizes (strive for single piece flow) Increase flexibility Select an appropriate production control approach Standardize Institute continuous improvement Use visual management Design the production system for flow and value Value generation Ensure comprehensive requirements capture process Focus on concept selection Ensure requirement flowdown Verify and validate Problem-solving Go and see for yourself Decide by consensus, consider all options Developing Cultivate an extended network of partners partners 18

19 BIM Functionality Stage Design Design and Fabrication Detailing Pre-construction and Construction Functional area and function Visualization of form Rapid generation and evaluation of multiple design alternatives Maintenance of information and design model integrity Automated generation of drawings and documents Collaboration in design and construction Rapid generation and evaluation of construction plan alternatives Online/electronic object-based communication 19

20 Lean - BIM Interaction Matrix Lean Principles BIM Functionality Reduce Variability Reduce cycle times Reduce batch sizes Increase flexibility Select an appropriate production control approach Standardize Institute continuous improvement Use visual management Design the production system for flow and value Ensure comprehensive requirements capture Focus on concept selection Ensure requirements flowdown Verify and Validate Go and see for yourself Decide by consensus consider all options Cultivate an extended network of partners A B C D E F G H I J K L M N O P Q R S T U V W X Visualization of form 1 1, Rapid generation and evaluation of multiple design alternatives , Maintenance of information and design model integrity Automated generation of drawings and documents (52) Collaboration in design and construction , Rapid generation and evaluation of multiple construction plan alternatives (29) 31 (41) (29) 37 (41) (29) (42) Online/electronic objectbased communication (42) (42) (42) 47 48

21 BIM tools and techniques Standardization of design leads to standardization of work 21

22 Flow of Information Program Schematic Design Licensing Standardization of modeling process - LOD Detailed Design Contracting Construction Detailing Manufacturing BIM Maturity Level Construction on Site Building Operation and Maintenance 22

23 BIM tools and techniques MEP Coordination Dawn Tower example 23

24 BIM tools and techniques MEP Coordination Dawn Tower example 24

25 BIM tools and techniques MEP Coordination Dawn Tower example 25

26 BIM tools and techniques MEP Coordination Dawn Tower example 26

27 Traditional Information Flow Architectural Design Architectural Detailing Structural Design Drawings Structural Detailing Drawings Construction Systems Design Systems Detailing Legend 2D Coordination General Contractor Designer or Supplier 27

28 BIM Information Flow Architectural Design Architectural Detailing Structural Design Drawings/ Models Structural Detailing Drawings/ Models Construction Systems Design Systems Detailing 3D Coordination Legend Building Modeling General Contractor Designer or Supplier 28

29 VDC* Information Flow Architectural Design Architectural Detailing Structural Design Drawings/ Models Structural Detailing Drawings/ Models Construction Systems Design Systems Detailing 3D Coordination Building Modeling Drawings *Virtual Design and Construction 29

30 Lean (pull) VDC Information Flow Architectural Design Architectural Detailing Structural Design Drawings/ Models Structural Detailing Drawings/ Models Systems Design Systems Detailing 3D Coordination Construction *Phase planning and Look Ahead planning Building Modeling Pull signals* Drawings 30

31 Rosh HaAyin project Flagship Tidhar Lean and BIM transformation project Co-location Reduced lead time for permits Model collaboration Client changes managed using models 31

32 Rosh HaAyin project 1,056 apartments USD $235 million 32

33 Rosh HaAyin project Modeled fully by a collaborative team 33

34 Rosh HaAyin project Modeled fully by a collaborative team 34

35 BIM Collaboration with Co-location Big Room 35

36 BIM Collaboration with Co-location Big Room 36

37 BIM Collaboration with Co-location Big Room 37

38 Client Change Coordination Project managers on high-end projects reported spending up to 60% of their time managing client changes and the resulting complexity of instructions to specialty contractors. Sacks, R., and Goldin, M., (2007). Lean Management Model for Construction of High-rise Apartment Buildings, ASCE Journal of Construction Engineering and Management, Vol. 133 No. 5 pp

39 Information flows from client to builder Designer Client Builder 39

40 Information flows from client to builder Supplier Project Manager Designer Sub contractor Changes Rep Site Manager Crew leader Client Builder 40

41 Modeling the apartment 41

42 Modeling the apartment 42

43 Modeling the apartment 43

44 Modeling the apartment 44

45 Information flows from client to builder Project Manager Changes Rep Site Manager Supplier Designer Sub contractor Crew leader Client Builder 45

46 KanBIM Aim: To propose, define, develop and test a BIM-enabled system to support production planning and day to day production control on construction sites. Kanban (pull flow control in lean production management) + BIM (Building Information Modeling) = KanBIM 46

47 KanBIM Erect columns Floor 6 Grids E1 to H4 Prepare and pour topping Floor 5 Grids A1 to D8 Strip and clean Floor 5 Grids A1 to D8 Erect Hollowcore Floor 5 Grids A1 to D4 Erect columns Floor 6 Grids E5 to H8 Sprinkler pipes Floor 4 Erect Hollowcore Floor 5 Grids A5 to D8 Support installation of hoist South side facade Lintels and ring beams Basement 1 Framing West side Basement 1 Main ducts Ducts Side A West side Basement 1 Cut HVAC access holes Floor 4 Grid B3- C4 Main ducts Ducts Sprinkler pipes Floor 3 Secondary ducts Ducts 10a-20a Main ducts Ducts End Units Zone 1 Testing HVAC - Zone 1 Electrical connection HVAC end unit zone 1 Main distribution board Wiring Entrance floor Lobby Framing for false ceiling Entrance floor Lobby Complete to ceiling Basement 1 Partitions Basement 1 Close openings above HVAC Stairwell 2 Basement 1 Framing East side Basement 1 Side A East side Basement 1 Pipe installation in drywalls West side basement 1 Duct installation in drywalls West side Basement 1 Lintels and ring beams Basement 2 Partition walls Storerooms Basement 3 Partitions Basement 2 Install main lines Basement 2 Fire fighting pump room Install main lines Basement 3 Fire fighting pump room Complete to ceiling Basement 2 Fix cracks West side basement 3 W12 47

48 Plumber avatar in the VCS Gurevich, U., and Sacks, R., (2014). Examination of the Effects of a KanBIM Production Control System on Subcontractors' Task Selections in Interior Works, Automation in Construction, Vol. 37, pp

49 KanBIM Test Subject Video mege&index=3list=pl&4e5e3c1b2daaf8dd 49

50 Typical results Gross production without KanBIM Gross production with KanBIM Net value-earned without KanBIM Net value-earned with KanBIM 50

51 Summary Information flow improvements in incremental steps: From 2D to Building Modeling (BIM) From BIM to Virtual Design and Construction (VDC) From VDC to Lean (pull) VDC Product configuration and information flows Deliver product and process information to work crews - empower crews 51

52 Conclusion Can BIM improve workflow/remove waste in construction processes? Short answer: Yes Longer answer: There are significant synergies between Lean Construction and BIM. BIM makes construction leaner even when lean is not the explicit intent. BIM can significantly enhance any lean construction transformation. 52

53 BIM and Lean Construction Achieving Smooth Workflow with Lean and BIM Thanks for your attention. Questions, discussion? Assoc. Professor Rafael Sacks Lean Construction Institute Israel