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 Collapse Prevention Life Safety
EMERGENCY RESPONSE PLANNING: THE QUEZON CITY SAFE BUILDING PROGRAM
THE BIG PICTURE FOR POLICY MAKERS Improve safety mandates for the public and showcase the city’s growth FOR OWNERS AND OPERATORS Save money by reducing downtime and continue business as usual FOR FACILITY MANAGERS Better manage decisions on evacuation and reoccupation FOR OCCUPANTS AND RESIDENTS 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 ?
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