The Truth About Parking Structure Maintenance How to Protect Your - - PowerPoint PPT Presentation

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The Truth About Parking Structure Maintenance How to Protect Your - - PowerPoint PPT Presentation

Sep 09, 2023 122 likes •643 views

The Truth About Parking Structure Maintenance How to Protect Your Investment Atlanta Workplace Georgia International Convention Center Friday February 28, 2020 Learning Objectives Parking Structures Structure Types Cost Comparison

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The Truth About Parking Structure Maintenance How to Protect Your Investment

Atlanta Workplace Georgia International Convention Center Friday February 28, 2020

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Parking Structure Maintenance

Learning Objectives

  • Parking Structures
  • Structure Types
  • Cost Comparison
  • Lifecycle Costs
  • Conditions Facing Parking Structures
  • Common Deficiencies
  • Importance of Routine Maintenance & Timely Restoration
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Parking Structure Maintenance

Innovative Engineering, Inc.

  • Scott L. Weiland PE
  • BSCE University of Michigan
  • Graduate Studies:
  • San Jose State University
  • Georgia Institute of Technology
  • PE in 20 States + PR & Guam
  • Parking Consultants Council
  • 39 Years in Design and Construction
  • BOMA Georgia Insight magazine
  • Parking Structure Maintenance Part 1 & 2
  • Falling Building Façade Closes Atlanta Streets
  • National Parking Association Parking Magazine
  • Parking Structure Maintenance
  • Parking Today
  • Why is it Raining in my Parking Structure?
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Parking Structure Maintenance

Innovative Engineering, Inc.

  • Trey Thomas PE
  • BSCET, Southern Polytechnic State University
  • 16 Years in Design and Restoration Engineering
  • Co-author of Parking Structure & Forensic articles
  • Certified in Mold, Lead & Asbestos Surveying
  • OSHA Competent Person for Boom & Scissor Lifts
  • SPRAT Level 2 Rope Access Technician
  • FAA Part 107 Remote Pilot Certificate
  • FAA Part 107 Daylight Waiver
  • Level I Certified Thermographer
  • Expert estimator (within 5% of actual)
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Parking Structure Maintenance

Structural Systems

Cast-in-Place Concrete Precast Concrete Structural Steel

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Parking Structure Maintenance

Cast-in-Place

  • Advantages
  • Flexible Geometry
  • Monolithic, Fewer Joints
  • Reduced Maintenance Costs
  • Longer Life Expectancy
  • Higher Durability
  • Disadvantages
  • Higher Initial Investment
  • Longer Schedule
  • More Labor Intensive
  • Difficult Quality Control
  • Weather Dependent
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Parking Structure Maintenance

Precast Concrete - Advantages

  • Advantages
  • Lower Initial Investment than CIP
  • Fabricated in Controlled Plant

Environment

  • Not Weather Dependent
  • Accelerated Construction Schedule
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Parking Structure Maintenance

Precast Concrete - Disadvantages

  • Disadvantages
  • May be no local plant
  • Geometry not Flexible
  • Lower Perceived Ceiling heights
  • Shearwalls (Closed In)
  • More Joints
  • Prone to Thermal Expansion &

Contraction Damage

  • Corrosion of Steel Embedments
  • Higher Maintenance Costs
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Parking Structure Maintenance

Structural Steel

  • Advantages
  • Lower Initial Cost than Precast
  • Accelerated Construction Schedule
  • Fabricated in Controlled Environment
  • No Shearwalls (Open)
  • Disadvantages
  • Corrosion Issues
  • Higher Maintenance Costs
  • Not Suitable for Fire Protection
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Parking Structure Maintenance

Typical Annual Life Cycle Costs/Space

$550 $467 $333 $167 $250 $447

$0 $200 $400 $600 $800 $1,000 CIP Precast Steel Cost/Space Maintenance Initial

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Parking Structure Maintenance

Parking Structures

  • Not Bullet Proof
  • No Protective Skin
  • Deterioration Starts Immediately
  • Subjected To:
  • Moisture (Rain, Snow, Ice, Deicing

Salts)

  • CO2 Carbonation
  • Extreme Thermal Expansion &

Contraction

  • Dynamic Vehicle Loads
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Parking Structure Maintenance

Structure Degradation

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Parking Structure Maintenance

Irving Texas, O'Conner Ridge Blvd. Collapse

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Parking Structure Maintenance

Irving Texas, O'Conner Ridge Blvd. Collapse

  • What we know
  • Old Parking Structure
  • Expansive Soils in TX
  • Exterior Columns Leaning
  • Cracks Sealed with Sealant
  • No OSHA Report
  • Demolished
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Parking Structure Maintenance

Irving Texas, O'Conner Ridge Blvd. Collapse

  • Typical Precast Double Tee

Joist Seat

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Parking Structure Maintenance

Common Deficiencies

  • Number 1 Enemy

WATER

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Parking Structure Maintenance

Common Deficiency: Corrosion

A: Spall B: Crack C: Corner Spall D:Delamination

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Parking Structure Maintenance

Common Deficiency: Spall & Delamination

Spall Delamination Section Loss

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Parking Structure Maintenance

Common Deficiency: Ponding

Ponding Supplemental Drain

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Parking Structure Maintenance

Common Deficiency: Failed Joints

  • Why is it Raining in my Parking

Structure?

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Parking Structure Maintenance

Common Deficiency: This is Why

Sealant Failure Cracks Expansion Joint Failure

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Parking Structure Maintenance

Common Deficiency: Failed Joint Sealant

Drainage & Joint Plan

  • Precast
  • All orthogonal lines are sealant Joints
  • Diagonal lines are slope lines
  • Cast-In-Place Slab
  • Expansion joint in middle
  • Joint sealant at perimeter and at stair

towers

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Parking Structure Maintenance

Common Deficiency: Cracks to be Sealed

.013” < Cracks < .035” Cracks that Leak < .035”

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Parking Structure Maintenance

Common Deficiency: Route & Seal

Crack Chasing Crack Sealant

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Parking Structure Maintenance

Common Deficiency: Epoxy Injection

Cracks > .035” Inflatable Injection Port

Photos by Engineered Restorations Inc.

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Parking Structure Maintenance

Common Deficiency: Corrosion

A: Spall B: Crack C: Corner Spall D:Delamination

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Parking Structure Maintenance

Common Deficiency: Concrete Spalls

Delamination Section Loss Spall

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Parking Structure Maintenance

Common Deficiency: Exterior Spalls

Spall Over Sidewalk Spall Size

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Parking Structure Maintenance

Common Deficiency: Sounding

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Parking Structure Maintenance

Common Deficiency: Last Resort

Traffic Bearing Membrane

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Parking Structure Maintenance

Common Deficiency: Better Option

  • Silane Sealer
  • Water Retardant
  • Breathable
  • Fills Pores of Dense Concrete
  • Minimizes penetration of

water and chemicals

  • Reapply 5 to 10 years
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Parking Structure Maintenance

Common Deficiency: Failed Spall Repair

Improper Surface Preparation

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Parking Structure Maintenance

Precast Haunch Connection Failure

4 Months Later Precast Beam Haunch

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Parking Structure Maintenance

Precast Haunch Connection Repair

Applying Epoxy Bonding Agent Shoring to Remove Load

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Parking Structure Maintenance

Precast Haunch Connection Finished Repair

Good as New

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Parking Structure Maintenance

Common Deficiency: Overloaded – Fire Truck

Broken Precast Spandrel Beam

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Parking Structure Maintenance

Common Deficiency: Curbs & Wheel Stops

Broken Wheel Stop Broken Curb

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Parking Structure Maintenance

Precast Shear Transfer Repair

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Parking Structure Maintenance

Precast Shear Transfer Repair

Precast Double Tees Shear Transfer Repair

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Parking Structure Maintenance

Precast Shear Transfer Repair

Images by V2 Composites

Saw Cut Slab Prepared Joint & Biscuit Repair

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Parking Structure Maintenance

Structural Steel Corrosion

  • Steel Protection &

Corrosion Issues

  • Steel Deck Traps Moisture,

Hides Degradation.

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Parking Structure Maintenance

Maintenance Cost Curve

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Parking Structure Maintenance

Maintenance Cost Curve

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Parking Structure Maintenance

Maintenance Cost Curve

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Parking Structure Maintenance

Maintenance Cost Curve

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Parking Structure Maintenance

Reactive Maintenance

Now Demolished

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Parking Structure Maintenance

Maintenance Program: Planning

  • Pre-Construction Design
  • Condition Assessment
  • Maintenance Checklist &

Schedule

  • Inspection Checklists
  • Budget

Source: National Parking Association

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Parking Structure Maintenance

Buying Services - Scope of Work

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Parking Structure Maintenance

Buying Services – The Sequence

  • Condition Assessment
  • Level I
  • Level II
  • Level III
  • Construction Documents
  • Bidding & Award
  • Resident Engineering
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Parking Structure Maintenance

Learning Objectives

  • Parking Structures
  • Structure Types
  • Cost Comparison
  • Lifecycle Costs
  • Conditions Facing Parking Structures
  • Common Deficiencies
  • Importance of Routine Maintenance & Timely Restoration
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Parking Structure Maintenance

Questions?

Scott L. Weiland PE

Innovative Engineering Inc. 3380 Trickum Road

  • Bldg. 500, Suite 100

Woodstock, Georgia 30188 sweiland@ieiusa.com 770-517-5507 Ext. 202