02 tsl from tender until rfc by pablo arecco
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This document summarizes the design process for the Third Set of Locks project in Panama. It describes the engineering teams involved in the design from 2008-2012. Key aspects of the design included numerical and physical models to simulate the lock chambers, modeling different components in software like Abaqus, and developing seismic criteria for lock structures. The design optimized the concrete and rebar quantities compared to the initial tender. Over 300 engineers from multiple firms worked on the design which included over 9,500 drawings and review of tens of thousands of shop drawings. The effort represented a major international engineering accomplishment.
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02 tsl from tender until rfc by pablo arecco
- 1. Third Set of Locks: From Conceptual Design until RFC Design Pablo Arecco PIANC YP-Com Chairman / MWH Global 1 Challenge the future
- 2. From 2007, the story keeps going Prequalification period: 4 months. Tender Design: 14 months from 2008. US$ 3,221,631,384.00 Best technical proposal Design & Build 2 Challenge the future
- 3. Design of the Third Set of Locks CICP Design Integration Office and Design Centers Design phases: Preliminary, Intermediate, Final, Release for Construction, Optimization & As Built (Engineering services during construction). Tetratech Bellevue MWH - Chicago IV-Infra - Rotterdam Netherlands Sembenelli - Milano, Italy Panama MWH - Buenos Aires 3 Challenge the future
- 4. Design of the Third Set of Locks Engineering Discipline Interfaces Hydraulic Geotechnical Seismic Lock Heads & Rolling Gates / Culvert Valves Mechanical / Electrical / I & C Buildings (by Others) Site Development & Infrastructure 4 Challenge the future
- 5. Components of each new Lock Complex Three Lock Chambers and four Lock Heads in each site Upper Chamber Middle Chamber Lower Chamber Lock Head 4 5 Challenge the future
- 17. Numerical & Physical models 17 Challenge the future
- 18. Numerical & Physical models 18 Challenge the future
- 19. Atlantic & Pacific Locks Major differences Use of existing 1939 excavations for New Locks Geology (Sandstone vs. Basalt) Excavation, slope protection & rock restitution Availability of concrete aggregate at Atlantic Seismic criteria / Fault zones Lock floor slabs Borinquen dams / Approach channels 19 Challenge the future
- 20. Lock chamber components For each type a structural model was identified for the design Lock Head Lock Walls with central connection Typical Lock Walls Crossunder 23 monoliths per side per chamber 7 types of structural Lock Walls Several loads combinations Chamber Conduit 20 Challenge the future
- 21. Lock Chamber monolith walls Pacific & Atlantic Lock Wall monoliths are different August 2012 Lock Wall Typical Monolith up to 350 Final concrete volumes: Lock walls 2.100.000 m3 Lock heads 1.200.000 m3 21 Challenge the future
- 22. Finite Elements Models with Abaqus速 22 Challenge the future
- 23. Finite Elements Models with Abaqus速 Lock Walls (Concrete) Lock Head Small Recess (Concrete) Rock Foundation (Gat炭n Rock) Lock Head Large Recess (Concrete) Rolling gates (Steel) Lock Head Slab (Concrete) Backfill (Gat炭n Rockfill) Lock Walls (Concrete) 23 Challenge the future
- 24. Finite Elements Models with Abaqus速 24 Challenge the future
- 25. Lock structures - Seismic criteria Earthquake level & performance criteria Level I 475 years Level II 950 years No service disruption Reparable damage Structure essentially elastic ATL 0,33g PAC 0,52g No collapse Reparable damage Limited non linear behavior ATL 0,42g PAC 0,72g 25 Challenge the future
- 26. Concrete reinforcement Weight 190,000 tonnes or 26 Eiffel Towers Final design quantities reduction maintaining same Design Req.: Concrete and excavation of over 10% compared to tender Reduction in reinforcement of 40% (around 17 Eiffel Towers) 26 Challenge the future
- 28. Design Facts & Figures Total for Atlantic and Pacific The MWH-led team peaked at over Equivalent 300 Full Time Staff working in 6 design offices on 3 continents. 9,500 Design Drawings (Atlantic & Pacific Total) 13,000 Concrete Lift Shop Drawings Reviewed 26,000 Reinforcement Shop Drawings Reviewed 50 Quality Audits (33 Internal, 17 External GUPC, ACP) Design 95% Complete, 88.5% Design Packages Submitted 28 Challenge the future
- 29. THIS IS THE EFFORT OF A HUGE TEAM! 29 Challenge the future