Download - Senior Design Presentation - Fall Term
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INVESTIGATION OF PINE ROAD BRIDGE
OVER PENNYPACK CREEK
Faculty Advisor: Dr. Ivan Bartoli
Technical Advisors: Dr. Emin Aktan and Ben Cohen
SENIOR DESIGN TEAM: 26
TEAM MEMBERS: MATAN ALEXANDER, CASSANDRA PRUEFER, DEREK ZACCHEO, GARY
REIFF, AND STEVEN KREELEY
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OUTLINE
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• Problem Statement
• Background
• Tasks Performed to Date
• Inspections
• Approaches
• Summary and Conclusions
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PROBLEM STATEMENT
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• Load Reduction caused by
Deterioration
• Emergency Retrofit After
Latest Inspection
• Need for Long-Term Solution
• Consideration of Different
Alternatives
• Recommend Efficient Long
Term Solution
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BACKGROUND
Drexel University
Bridge #205
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•Located in
Pennypack Park
•In Bustleton and
Fox Chase
Neighborhoods
•Built in 1977 to
replace one from
1900
•Last Inspected
6/18/14
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• Two Sidewalks
• 44 foot Roadway
Curb to Curb
• 82° skew angle
• Oriented East-West
• Reinforced Concrete
Deck
• 8 Weathering Steel
Girders
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STRUCTURAL DESCRIPTION
•Single-Span of 80 Feet
between Abutments
•Two Lanes of Traffic
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HIGH STRENGTH, LOW ALLOY STEEL
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Wong, c. (2009) Fact or Fiction-weathering steel can provide effective
corrosion protection to steel structures. electrical substation structures
2009: pp1-8.
•Weathering Structural Steel
•Forms a Patina of Rust to Seal the Surface
•Poor Performance under Wet Conditions
•May Require Additional Maintenance
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COMMUNITY IMPACT
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•Evaluated over 5 Mile
Radius
•Connection of
Bustleton and Fox
Chase/Burholme
•Resident, Commerce,
and Emergency Routes
Examined
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COMMUNITY IMPACT
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Bridge #205
Engine 62
Engine 58
Police 7th District
•Schools (Blue)
Prevalent in
Bustleton
•Fire and Police
Stations along
Bustleton Avenue
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COMMUNITY IMPACT
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Bridge #205
•Hospitals, Retail,
and High School in
Fox Chase/
Burholme
•High Density of
Residences
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COMMUNITY IMPACT
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COMMUNITY IMPACT
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Bridge #205
•SEPTA Routes
could change
from Population
Growth
•Pine Road
could be
Utilized in the
Future
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TASKS PERFORMED TO DATE
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•Panel Meeting with City
•Submission of Preliminary Statement of Interest
•Obtained Most Recent Inspection Reports
•Conducted Bridge Inspection
•Submission of Proposal
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DECK INSPECTION
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•Generally Good
Condition
•Unknown Joint
at East End
•Expansion
Joint in Poor
Condition
•Approach Slab
Shift
•Settlement
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SUPERSTRUCTURE INSPECTION
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•Girders and Cross-braces with
Rusting and Section Loss
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EAST SUBSTRUCTURE INSPECTION
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•Cracking of
Abutment Pedestals
•Emergency Repairs
to East Abutment
•Cracks in Face of
Abutment
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WEST SUBSTRUCTURE INSPECTION
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•Generally Good
Condition
•Cracking in
Abutment Face
•Minimal Water
Damage
Through Joint
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GENERAL APPROACH
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•Decision Matrix
•Geometric and 3-D
Modeling
•Cost Estimates
•Life Cycle Assessment
•Hydraulics and
Hydrology
•Utility Management
•Structural Design
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APPROACH (Modeling)
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•Google SketchUp
Architectural Model
•3-D Geometric
Model in AutoCAD
•3-D Finite Element
Analysis in SAP
2000
•Determine Worst
Case Scenario
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APPROACH (Construction Costs)
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•Based on PennDOT Unit
Prices
•Determined through
Quantity Calculations
•Factors in Hours Worked
and Maintenance Needs
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DESIGN BUDGET
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APPROACH (Life Cycle Assessment)
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•2 Similar Bridges
•Performed on all Four Alternatives
•Modeled with SimaPro
•Based on Cost and Quantity of Materials
•Factors in Environmental Impacts
•Considers Possible Population Growth
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APPROACH (H & H ANALYSIS)
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•FEMA Zone AE,
Approximate Analysis
•Determine Peak Flow
Rates Using Existing
Hydrology
•Perform Hydraulic
Analysis on Existing
Conditions
•Compare Changes
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APPROACH (STRUCTURAL DESIGN)
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•Examine Multiple Alternatives
•Rehabilitate Abutments, Beam
End, and End of Deck
•Retrofit with Additional
Drainage
•Replace with Steel or
Prestressed Concrete Girders
•Perform all Relevant Structural
Calculations
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APPROACH (UTILITY MANAGEMENT)
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•8 inch Gas Main
•20 inch Water Main
•Existing Electrical Utilities along
Abutments
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PROJECT SCHEDULE (FALL)
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PROJECT SCHEDULE (WINTER)
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SUMMARY AND CONCLUSIONS
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•Inspect the Structure to Determine Defects
•Attempt to Ascertain causes of Deterioration
•Examine Multiple Alternatives
•Recommend Most Efficient Solution
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QUESTIONS?
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