Aci-350.3-06.pdf Online

ACI 350.3-06 is a technical standard titled Seismic Design of Liquid-Containing Concrete Structures and Commentary . Published by the American Concrete Institute (ACI)

One of the most practical sections in ACI-350.3-06.pdf is Chapter 6: Freeboard . It calculates the maximum vertical height of sloshing waves. If the tank roof is too low, the liquid will slam into the roof, causing structural damage or overflow. The code mandates a minimum freeboard based on the site's (S_D1) and tank radius. ACI-350.3-06.pdf

: Provisions for the structural design of concrete tanks and similar structures, including considerations for strength, serviceability, and durability. ACI 350

For tanks with interior decks or baffle walls, the code specifies how to transfer seismic forces through the concrete diaphragm to the lateral force-resisting system. If the tank roof is too low, the

[ P_i = C_i \cdot (W_i) \cdot (S_DS) ]

Finite element model results: base shear = 428 kN (difference ~3.7%, within acceptable engineering margin).