BIM application for insitu RC structure New Engineering

BIM application for in-situ RC structure New Engineering Consultants Inc. Prof. Byung Hai Lee

Contents Introduction Structural BIM(Cast-In-Place, CIP) • Modeling • A&D • Production • Construction Case Study • Design Overview • Concrete Model • Re-bar Model • Tekla → Steelpac RC market analysis in Korea • Market size of re-bar manufacturing works • Competitors • TS vs Allplan vs Revit References Q&A 2

Introduction Reinforced concrete is used in capital facilities in all sectors of the construction industry. Although numerous specialists(owners, architects; structural engineers, regulatory agencies, scrap metal processors, steel mills, concrete suppliers, fabricators, formwork suppliers and erectors, embeds- and accessories producers, general contractors, and specialist contractors for rebar and concrete placement) are involved in its design and supply chain, it is highly fragmented and sub-optimized; it needs to be restructured. Need to be Restructured!!! 3

Introduction • Financial remuneration • Collaboration • Thinking and Practice Strategies Develop production model Bring groups together Define and compensate value Demonstration projects Expose waste 3 rd party intervention Low bid design Low pay; slow pay Adversarial relations Repeated mistakes Temporary teams Present First cost mentality No way to ‘prove’ value Obstacles Ignorance Fear of change Best practices not always used Adversarial contracts Laws and Legislation Weird social-ethical barriers Str ate gie s Timely pay Profit from innovation Shared risk and reward ‘Pay’ specialist for design inputs Desired. Teamwork expensive buildings, Future Less delivered faster Value metric Learning Life cycle costing Enlightened , holistic capitalism 4

Introduction • Philosophy for restructuring the rebar supply system - Lean project management <Traditional vs Lean Project Management> Traditional Project Management Lean Project Management The primary focus of management is on transactions and contracts The primary focus of management is on designing and making things The goal is to deliver the project to contractual requirements The goal is to deliver the project while maximizing value and minimizing waste Decisions are made sequentially by specialists and “thrown over the wall” Downstream players are involved in upstream decisions Product design is completed, then process design begins Product and process are designed together Problems caused early in the process presumably can be fixed later Problems are avoided or fixed as early as possible 5

Introduction Traditional Project Management Lean Project Management Only selected product life cycle stages are considered in design All product life cycle stages are considered in design Activities are performed as soon as possible Activities are performed at the last responsible moment Separate organizations link together through the market and take what the market offers Supply systems are structured for value generation and for flow, and systematic efforts are made to reduce lead times Learning occurs sporadically Learning takes place continuously and is incorporated into project, firm, and supply chain management Stakeholder interests are not aligned Stakeholder interests are aligned Variability(in duration, deliveries, quality) are accepted as the way things are Variability is reduced through production system design and control Participants build up large inventories(materials, space, time, cash) to protect their own interests Buffers are sized and located to performed their function of absorbing system variability that cannot be eliminated 6

Structural BIM(CIP) • Modeling • A&D • Production • Construction 7

Structural BIM Revit Building, Modeling Archi. CAD, Microstation V 8 Analysis Safe, ADAPT, ETABS, CSC Orion, SDP, Midas Design Tekla Structures Detailing Steelpac, a. Sa rebar, Schnell grafo(Production Engineering) Production Schnell(Manufacturing) Tekla Construction Task Manager, Vico, Vela System 8

Structural BIM Modeling Analysis Design Detailing Production Construction 9

Structural BIM A&D Modeling Analysis Design Detailing Production Construction 10

Structural BIM A&D Modeling Analysis Design Detailing Production Construction 11

Structural BIM Production Modeling Analysis Design Detailing Production Construction 12

Structural BIM Production Modeling Analysis Design Detailing Production Construction 13

Structural BIM Construction Modeling Analysis Design Detailing Production Construction 14

Structural BIM Expected effect • Clash check • Issue shop drawing • Accurate Quantity take off (Concrete, rebar, cast…) • Prevent time consuming • Prevent additional loss A &D Modeling Detailing Production 15

Structural BIM Model SAFE ADAPT ETABS (Slab) (Beam + Column) Revit Structure Open API Tekla Structures Steelpac Schnell 16

Case Study(Y-City) Design Overview Concrete Model Re-bar Model Tekla→Steelpac 17

Case Study Design Overview Location Baebang-Eup, Asan-Si, Chungcheongnam-Do, Korea(Republic of) Title Y-City Plottage 76, 406 m² (800, 892 ft²) Ground floor Area 211, 303 m² (2, 274, 425 ft²) Basement Area 129, 228 m² (1, 390, 986 ft²) Total Gross Area 340, 532 m² (3, 665, 421 ft² ) Floor Area Ratio 247. 37 % Purpose Residential Complex Size Basement 4 stories, Ground floor 30 stories Structure Reinforced Concrete Parking 3, 122 units Household Officetel 1, 498 Houses 59 m² A 59 m² B 84 m² A 84 m² B 114 m² A 114 m² B 256 Houses 360 Houses 163 m² 10 Houses 179 Rooms 18

Case Study Concrete Model 19

Case Study Concrete Model 20

Case Study Concrete Model 21

Case Study Concrete Model 22

Case Study Re-bar Model – slab 23

Case Study Re-bar Model – slab 24

Case Study Re-bar Model – Continuous Beam 25

Case Study Re-bar Model – Stair 26

Case Study Re-bar Model + + 27

Case Study Re-bar Model 28

Case Study Re-bar Model 29

Case Study Re-bar Model 30

Structural BIM Tekla →Steelpac 31

Structural BIM Tekla →Steelpac 32

RC market analysis in Korea Market size of re-bar manufacturing works Competitors TS vs Allplan vs Revit 33

RC market analysis in Korea Market size of re-bar manufacturing works <Year-end 2005 report from re-bar manufacturing factories> Way to process Production(ton) rate(%) Hand-made Shop dwg. fee Project (million EUR) Size 363, 000 5. 0 0. 0 Small On-site 4, 944, 000 68. 0 On-site Plant 873, 000 12. 0 4. 0 Plant 1, 091, 000 15. 0 Medium Total 7, 271, 000 100. 0 25. 0 Medium Large 34. 0 cf. S/D fee is calculated by 5. 0 EUR/ton • 2010’s expected works : 10 million EUR • Existing potential market : Around 25 million EUR size(On-site manufacturing) 34

RC market analysis in Korea On-site plant 873, 000 12% Plant 1, 091, 000 15. 0% Handmade 363, 000 5. 0% Market size of re-bar manufacturing works Plant 5. 0 (15. 8%) On-site plant 4. 0 (13%) On-site 4, 944, 000 68. 0% <Re-bar manufacturing(ton)> On-site 25. 0 (71. 6%) <Shop dwg. fee(million EUR)> 35

RC market analysis in Korea Competitors Software Developer Vendor 1 Tekla Structures Tekla (www. tekla. com) New Engineering Consultants (www. nec-tekla. co. kr) 2 Allplan NEMETSCHEK (www. nemetschek. net) Basis. Soft (www. basis. co. kr) 3 SDP Chang Minwoo Structural Consultants Chang. SOFT (www. chang-soft. co. kr) 4 MIDAS IT (www. midasit. com) 5 Advance Concrete Graitec (www. graitec. com) Intratech (www. intra. co. kr) 6 Revit Structure Autodesk (www. autodesk. com) Autodesk (www. autodesk. co. kr) 36

RC market analysis in Korea TS vs Allplan vs Revit Tekla Allplan Revit 2 D ∆ O O 3 D O O O Parametric and Components ∆ O ∆ Project Controlling O O ∆ Shop drawing O O X Machinery support ∆ O X Marketing Strategy for Korea of NEMETSCHEK and Basis. Soft(Korea local re-seller) NEMEETSCHEK has been tried to let people know “What Allplan is” with Basis. Soft since 2007. In the future, they plan to have periodical education, issue a free license for students and cut the price. 37

References Thesis 1 Kristen Parrish, John-Michael Wong, Iris D. Tommelein, Bozidar Stojadinovic(2008) “Value propositions for set-based design of reinforced concrete structures” 2 Kristen Parrish, John-Michael Wong, Iris D. Tommelein, Bozidar Stojadinovic(2008) “Set-based design - Case study on innovative hospital design” 3 Kristen Parrish, John-Michael Wong, Iris D. Tommelein, Bozidar Stojadinovic(2008) “Exploration of set-based design for reinforced concrete structures” 4 Kristen Parrish(2009) “Applying a set-based design approach to reinforcing steel design” 5 Olli Seppanen(2009) “Empirical research on the success of production control in building construction projects” 38

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