Alterations and Seismic Upgrade: The Building Code as Mitigation Policy
April 14, 2015
This report addresses the question of when the building code should require seismic upgrade for a building undergoing a voluntary alteration. It proposes the re-introduction of an optional alteration-based upgrade trigger into the national model codes, but with a customizable feature that both respects local precedents and supports local mitigation planning.
Earthquake Engineering Research Institute