A New State-of-the-Art System Used For the Inspection and Design of Rehabilitation Plans for Marine Structures - Case Studies Presented at: ICRI Spring.

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Presentation transcript:

A New State-of-the-Art System Used For the Inspection and Design of Rehabilitation Plans for Marine Structures - Case Studies Presented at: ICRI Spring Convention San Diego, CA March 23, 2000 March 23, 2000 Ronald E. Heffron, P.E. Han-Padron Associates

Topics to be Covered The Case Study Structures The Case Study Structures Above Water and Underwater Inspections Above Water and Underwater Inspections Preparation of Bid Documents Preparation of Bid Documents Repair Methods Repair Methods Conclusions Conclusions

The Structures Berth Built in the mid-1920s Built in the mid-1920s Concrete Construction Concrete Construction Asphalt Impregnated Piles Asphalt Impregnated Piles

The Structures Berth 70-71

The Structures Berth Built in the mid-1920s Built in the mid-1920s Concrete Construction Concrete Construction Asphalt Impregnated Piles Asphalt Impregnated Piles

The Structures Berth

Above Water and Underwater Inspections Regular Inspection Principal Inspection POLA Nomenclature

Purpose and Goals Purpose and Goals Rate the Structure’s Overall Condition From 1 to 6Rate the Structure’s Overall Condition From 1 to 6 Determine if Repairs are RequiredDetermine if Repairs are Required Prioritize the RepairsPrioritize the Repairs Recommend a Future Course of ActionRecommend a Future Course of Action Establish the Scope of a Principal Inspection, if RequiredEstablish the Scope of a Principal Inspection, if Required Regular Above Water and Underwater Inspections

Inspection Results Regular Above Water and Underwater Inspections

Above Water Principal Inspection (AWPI) Purpose and Goals Purpose and Goals Record Details of Each Defect to be Repaired in Order to Prepare Bid DocumentsRecord Details of Each Defect to be Repaired in Order to Prepare Bid Documents Generate Quantity and Cost EstimatesGenerate Quantity and Cost Estimates Assign Repair Method to Each DefectAssign Repair Method to Each Defect Assign Repair Priority to Each DefectAssign Repair Priority to Each Defect

Above Water Principal Inspection (AWPI) Automated Data Collector

Some piles that looked fine above water were completely severed underwater Some piles that looked fine above water were completely severed underwater Testament to the Importance of Conducting Underwater InspectionsTestament to the Importance of Conducting Underwater Inspections Underwater Principal Inspection (UWPI)

Above water damage on Berth led to UWPI on several piles - revealing significant u/w defects Above water damage on Berth led to UWPI on several piles - revealing significant u/w defects Another Testament to the Importance of Conducting Underwater InspectionsAnother Testament to the Importance of Conducting Underwater Inspections Underwater Principal Inspection (UWPI)

AIRIS - Automated Inspection and Repair Information System Engineer’s Analysis Report Engineer’s Analysis Report Review Data and Assign Repair Methods, Resolve Unusual Defects, and Assign Repair PrioritiesReview Data and Assign Repair Methods, Resolve Unusual Defects, and Assign Repair Priorities Estimator’s Report Estimator’s Report Quantity Totals and Unit Pricing to Produce Repair EstimatesQuantity Totals and Unit Pricing to Produce Repair Estimates Report of Defects To Be Repaired Report of Defects To Be Repaired Report for Inclusion in Bid Documents to Show Contractor What to Fix and How to Fix ItReport for Inclusion in Bid Documents to Show Contractor What to Fix and How to Fix It Preparation of Bid Documents Using the AIRIS Database

Preparation of Bid Documents

The AIRIS System Can Currently Accommodate Any Repair Method Used on Concrete Structures, Including: The AIRIS System Can Currently Accommodate Any Repair Method Used on Concrete Structures, Including: Jacketing of PilesJacketing of Piles Shotcrete RepairsShotcrete Repairs Trowel-Applied Mortar RepairsTrowel-Applied Mortar Repairs Epoxy Injection RepairsEpoxy Injection Repairs Sealing of CracksSealing of Cracks Cast-in-Place Concrete RepairsCast-in-Place Concrete Repairs Repair Methods

Conclusions A Well Designed Preventive Maintenance Program Can Make the Inspection and Repair Process:  BETTER More Accurate Due to Less Handling of DataMore Accurate Due to Less Handling of Data  FASTER Produces Repair Plans in Hours Instead of WeeksProduces Repair Plans in Hours Instead of Weeks Makes the Maintenance Process Run Smoothly and EfficientlyMakes the Maintenance Process Run Smoothly and Efficiently Greatly Improves ProductivityGreatly Improves Productivity  CHEAPER Expends Resources Efficiently by Conducting Detailed Inspections Only Where NeededExpends Resources Efficiently by Conducting Detailed Inspections Only Where Needed Targets Scarce Maintenance Dollars Efficiently Through a Prioritization ProtocolTargets Scarce Maintenance Dollars Efficiently Through a Prioritization Protocol  EASIER Uniformity Eliminates Everyone “Reinventing the Wheel”Uniformity Eliminates Everyone “Reinventing the Wheel” Standardized Reports Simplify Handling of Large Amount of DataStandardized Reports Simplify Handling of Large Amount of Data