Superstructures Accommodating Camber Accommodating Camber in ABC Details in ABC Details
Superstructures Slab Build- up to address Camber
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Photo Gallery NCHRP Report 381 and 2004 Scan Report (FHWA-PL-05-003)
Superstructures Double Tee Bridge with transverse PT
Superstructures
Superstructures 3 Span Structure
Superstructures Pavers and bedding to address Camber
Superstructures Double Tee and Joint Detail Concrete International November 1987
Substructures Edison Bridge Edison Bridge and and South Maple Street South Maple Street
Substructures Column Segment Form
Substructures Photo Inside of Pier Cap
Substructures Pier segment with no. 14 bars
Substructures Column segments in place with cap staged
Photo Gallery Solutions for every size
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Connections ABC Details and Remedies…. ABC Details and Remedies….
Connections Underneath a Precast Pile Bent Bridge
Connections Joints…. To hide or to emphasize? Tell the bidder when and how to sealing and/or inject planned and un-planned cracks. Know the materials Plan for field adjustment There is a need to minimize risk and to work with the contractor!
ABC Ideas
Photo Gallery New Big and Bold ideas…….
Photo Gallery Announcing routine and periodic advancements: New Generation of Beams Pretopped Beams facilitate Deck Placement
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Photo Gallery Context Sensitive to Historical area
Photo Gallery Simplified forming ideas
Photo Gallery Shell elements
Photo Gallery Community icons
Photo Gallery Game changing events
Photo Gallery Improved concepts and details
Photo Gallery Sliding technologies
New ABC Series launched Sample of Future Topics to be covered: Detailing for flexibility Considerations for placement tolerances to address the accumulation of loading displacement Contractors Measurements To push or to pull Slide or Roll And many more…..
Photo Gallery C-I-P Connections to bent precast cap
Photo Gallery C-I-P to fill pile void and fill shell of waterline pier cap
Photo Gallery Prefabricated cast seal attached to removable side forms
Industry Partners and Tools Where do we go next…. Where do we go next….
Industry Partners and Tools • Knowledge Creation – Industry Committees and vetting research – Manuals and Standards Development • Knowledge Dissemination – Past Successes and lessons learned – Showcases – Training • Continuous Improvement – Quality Programs and Continuous Improvement – Shape future thru Research
AISC / PCI (2009) • White Paper expands on AASHTO Resolution •Set forth 12 essential elements of a comprehensive Quality Program
Please help your Industry partners educate all professionals….. Each of you here are asked to educate your leadership that a creditable certification has a “chain of custody arrangement” back to fundamental “body of knowledge” to facilitate consistent interpretation/deployment and continuous improvement. A checklist is just not good enough.
79 Industry Plant and Personnel Certification Programs
Appendix D - Adhesive Anchors & Installer Certification A New ACI 318-11 Requirement 80
Specifying Adhesive Anchors Strongly suggest presentation on record drawings Drawings & specs get separated after the job Can incorporate info into specs 81
PCI Handbook Chapter 8
PCI Handbook Chapter 8
PCI Handbook Chapter 8 Prefabrica
PCI Handbook Chapter 8
PCI Handbook Chapter 8 Swivel plate connections are very versatile
PCI Handbook Chapter 8
PCI Handbook Chapter 8 Storage warping
PCI Handbook Chapter 8
Industry Partners and Tools • 3rd Edition of the BDM as ePub – Updates in progress – Linked/Searchable ePub – 11 new design examples – Alternate code provisions (losses, shear, transformed) • SOA on Full Depth Precast Decks – Concepts and Considerations – Post-Tensioning Concepts – Sample Calculations
ASPIRE LRFD FEATURE Ask Dr. Mertz questions: Background to the code? Limit’s to the application? Why the change?
Gaps/Future Research Where do we go next…. Where do we go next….
Gaps/Future Research Use strategies from Past Successes by continuing to press for more: • National Design Aids and Go by’s – Audience Generally Designers and EOR • Collaborative Specifications and Plans – Audience Generally Contractor, Subcontractor, Specialty firms, Specialty Engineers • Collaborative Inspection Aids – Construction inspection by Contractor’s QC and Department's QA
A future Doctrine enhancement European Codification Approach for Durability From fib Bulletin 34, Model Code for Service Life Design: 1) Full Probabilistic Design 2) Partial Factor Design 3) Deemed-to-Satisfy Design (AASHTO) 4) Avoidance of Deterioration See the ASBI Website for a paper on 100+ year service life by Dr. Rostam it was reprinted with permission in the PCI Journal January-February 2008
Gaps/Future Research • Load spectrum for non working joints • Materials for Adhering a durable fast setting and inspectable overlay • Substructure needs aesthetic details and treatments at element interfaces • Deck joint criteria for strength and fatigue
Gaps/Future Research • Load Case development for horizontal Sliding? • New Materials for Adhering (an overlay) to MAPC (Magnesium Ammonium Phosphate Concrete)? • Aesthetic Details at Joints?
Conclusion Design for 100+ ABC Year Life Today Structural Strategies for Durability Material Strategies for Durability Durable ABC Concrete Bridges
ABC Webinar at FIU Concrete Bridges Concrete Bridges William Nickas, P.E. wnickas@pci.org Managing Director, Transportation Systems Precast/Prestressed Concrete Institute
Industry Partners and Tools www.pci.org/ epubs PCI and ePubs
Industry Partners and Tools
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