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BUILDING SEISMIC INSTRUMENTATION
USING STRONG MOTION ACCELEROGRAPHS
National Structural Code of the Philippines 2010
Chapter 1, Section 105
105.2 Earthquake-Recording and Instrumentation
105.2.1 General
Unless waived by the Building Official, every building in Seismic Zone 4 over 50 m in
height shall be provided with not less than three approved recording accelerographs.
The accelerographs shall be interconnected for common start and common timing.
Seismic Zone 4
DPWH IRR on Earthquake Instrumentation
Benefits of Installing Accelerographs BETTER SEISMIC DESIGN
1. Prove the dynamic model used in the building design process
2. Validate or improve seismic design codes
RAPID ASSESSMENT AND DAMAGE MITIGATION
3. Monitor structural response during an earthquake
4. Provide information used in post-earthquake actions
5. Interact with automatic shutdown controls to minimize damage
6. Provide data useful to the retrofit process
BUSINESS CONTINUITY
7. Reduce the monitored structure’s post-earthquake non-operational downtime
Sample Earthquake Response
Engineering Solution
Displacement Time-History
Drift Ratio
Damage Condition
Post-Earthquake Assessment
Building Occupancy
Resumption Program
Engineering Solution
Immediate Occupancy Life Safety Collapse Prevention
EMERGENCY RESPONSE PLANNING:
THE QUEZON CITY SAFE BUILDING PROGRAM
THE BIG PICTURE
FOR POLICY MAKERS
FOR OWNERS AND
OPERATORS
FOR FACILITY
MANAGERS
FOR OCCUPANTS AND
RESIDENTS
Improve safety mandates for the public and
showcase the city’s growth
Save money by reducing downtime and continue
business as usual
Better manage decisions on evacuation and
reoccupation
Increase confidence in safety and avoid panic
during state of emergency
IMPLEMENTATION
MONITORS AND
OUTPUTS
W E
B
O U
T P
U T
MONITORS AND OUTPUTS
W E
B
O U
T P
U T
MONITORS AND OUTPUTS
W E
B
O U
T P
U T
MONITORS AND OUTPUTS
W E
B
O U
T P
U T
MONITORS AND OUTPUTS
IMMEDIATE OCCUPANCY LIFE SAFETY COLLAPSE PREVENTION
Questions
?
Maraming
Salamat!
