Aci-350.3-06.pdf [patched] Jun 2026

While this article focuses on the -06 edition, it would be incomplete without mentioning that ACI released in 2020. The newer edition aligns with ASCE 7-16 and introduces important changes:

ACI 350.3-06 provides specific requirements for the earthquake-resistant design of concrete liquid-containing structures. While general building seismic codes (like ASCE 7 or the International Building Code) focus on occupant safety, ACI 350.3 focuses on . ACI-350.3-06.pdf

One of the most practical sections deals with —the vertical distance between the maximum water level and the top of the tank wall. Using the convective period, the standard calculates the maximum vertical displacement of the sloshing wave. If your tank lacks the required freeboard, the water will slosh out during an earthquake, potentially flooding sensitive equipment or causing erosion. While this article focuses on the -06 edition,

is more than a dusty code from the mid-2000s. It is the technical bridge between fluid dynamics and earthquake engineering. It protects communities from the specter of a fractured water tank during a major quake—an event that could leave a city without drinking water or flood a neighborhood with raw sewage. One of the most practical sections deals with

This is the heart of the document. When a tank shakes during an earthquake: