, it provides procedures for the seismic analysis and design of reinforced concrete tanks used for water and wastewater treatment. Academia.edu Key Objectives & Scope

The fundamental concept behind ACI 350.3 is that a tank full of water does not act as a rigid mass. During an earthquake, the water moves in two distinct ways, creating two different types of forces:

The use of ACI 350.3-06 provides several benefits, including:

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 .

In the field of civil and structural engineering, the design of liquid-containing structures—such as water treatment plants, reservoirs, and wastewater facilities—presents a unique set of challenges. Unlike typical buildings, these structures must account not only for the inertial forces of the structure itself during an earthquake but also for the complex hydrodynamic forces exerted by the contained liquid. The American Concrete Institute’s , titled “Seismic Design of Liquid-Containing Concrete Structures and Commentary,” serves as the definitive standard for addressing these challenges in the United States.

ACI 350.3-06 provides detailed requirements for designing reinforced concrete structures to resist earthquake loads. The code covers various aspects, including: