According to Japanese seismic design codes, what is the target performance level for a new residential
According to Japanese seismic design codes, what is the target performance level for a new residential building during a major earthquake (e.g., M8.0)?
A. No damage
B. Minor damage, repairable
C. Moderate damage, functional after repair
D. Major damage, but no collapse
E. Collapse prevention only
Answer: D
Explanation: Japanese seismic design codes adopt a “collapse prevention” and “life safety” principle. For major earthquakes (M8.0 or higher), the target performance level is that the building may suffer major damage but will not collapse, ensuring the safety of occupants—this is a fundamental seismic design principle.
