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POST-EARTHQUAKE REPAIR AND

IMPROVEMENTS, SAN VICENTE, CHILEJohn Bardi, P.E., M. ASCE

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USGS Shake Map, M 8.8 Offshore Maule

San Vicente

Epicenter

Very Strong to Severe

Shaking in San Vicente Liquefaction and Lateral

Spreading at Terminal

Wharf Deformation upto 600 mm

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Liquefaction and Lateral Spreading

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Wharf DeformationBerth 1

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Pile DeformationBerth 1-2 Transition

Pile Inclination

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Berth 2 & 3 Deformation

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Typical Pile DamageBerths 2 & 3

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Repair and Reconstruction Strategy

Damage Assessment and Load Rating

P-Delta Analyses

Structural Investigation & Local Repairs

Temporary Operation and Load Restrictions

Short Term Repairs (Access Bridges)

Develop ShortTerm Operating Live Load Criteria

Long Term Repairs

Ground Improvement Program

New Lateral-Force Resisting Systems9

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Repair and Reconstruction Strategy

1

0

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Existing Berths 2 & 3

11

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Berth 2/3 Reconstruction Strategy

Eliminate Fusible Transition Span

Stabilize Ground Behind Wharf

Provide Landside Link Structure with New

Lateral-Force Resisting System

Provide New Waterside Apron Structure with

provision for New Container Crane Loading

Integrate Existing Structure with Link and

Apron Structures via new structural deck

overlay12

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Berths 2 & 3 Reconstruction

21.75 Future Crane Gauge

13

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0

1000

2000

3000

4000

5000

6000

0.00 0.20 0.40 0.60 0.80 1.00 1.20

Force

(kN)

Displacement (m)

Existing

Retrofitted

Berths 2 & 3 Typical Pushover Plots

14

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Existing Berth 1

15

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Berth 1 Replacement Strategy

Eliminate Fusible Transition Span

Stabilize Ground Behind Wharf

Provide New Structure with Comparable

Lateral-Force Resisting System

Match Provision for Container Crane Loading to

Reconstructed Berths 2/3

Use Existing Structure as Work Platform

16

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Berth 1 Inclinometer data

-1200

-1000

-800

-600

-400

-200

0

0 50 100 150

Depth(i

n)

Deflection (in)

Deflection

Data

Best Fit

Deflection Relative

to Pile Tip-1200

-1000

-800

-600

-400

-200

0

-200000 0 200000 400000

Depth(

in)

Moment (kip-in)

Moment

Data

Best Fit

Yielding

Along Length

of Pile

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Berth 1 Replacement

18

21.75 Future Crane Gauge

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Berth 4 Extension Strategy

Provide for extension of new craneway

Deeper draft capability

Provide a new berth to prior to starting

construction on Berths 2 & 3

Provide 5thberth for smaller vessels

19

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Berth 4 Extension

20

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Acknowledgements

Pares & Alvarez, Concepcion, Chile

Ing. Paola Pineda

Ing. Marcelo Steffen

Co-Authors

J. Paul Smith-Pardo, PhD, PE, MASCE, Seattle Univ.

Jyotirmoy Sircar, PE, MASCE, BergerABAM

Geotechnical

William M. Camp, III, PE, D.GE, S&ME, Inc.

Aaron D. Goldberg, PE, D.GE21