Improving Earthquake Resiliency in Developing

Cities

Dr. Hideki Kit Miyamoto, S.E.

The World Bank Project in Manila

Typical Building Construction

Typical School

Seismic Risk Identification and Prioritization

Seismic hazard

Building vulnerability

Exposure data

Risk Identification of Buildings

Impact EvaluationImpact 

Evaluation

Prior Studies

Metro Manila Existing SchoolsBuilding Damage Index

Metro Manila Existing SchoolsProjected Fatalities per Building

25% of fatalities (6385) in 5% of buildings (186)

80% of fatalities (19330) in 40% of buildings (1466)

3,821 Buildings 24,400 Fatalities (of 2.15 million)

Cost Analysis

Buildings StrengtheningCost

StudentLives 

Worst 5% (190) $40 ‐ 80M 25% (6,380)

Worst 40% (1500) $180‐360M 80%(19,330)

Implementation

Seismic Strengthening Guidelines

• Volume I – Simplified methodology for evaluation and

strengthening: Based on the National Code (NSCP) and FEMA 356/ASCE 41

• Volume II – Atypical buildings, PBD

• Volume III – Design examples for typical school buildings

Shear wall retrofit

BRBF or Viscous Damper retrofit

Key Findings • Cities can systematically retrofit certain

structures and greatly reduce the number of fatalities

• Seismic risk management in developing cities is critical and feasible.

D i s a s t e r R e c o n s t r u c t i o n | 1 2 0 , 0 0 0 D a m a g e R e p a i r P r o g r a m , H a i t i

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