Aci-350.3-06.pdf
ACI 350.3-06, "Seismic Design of Liquid-Containing Concrete Structures," provides essential, specialized criteria for calculating seismic pressures on liquid-retaining tanks, dividing forces into impulsive and convective components to ensure structural integrity. This standard mandates specific considerations for cracking, watertightness, and vertical acceleration, acting as a crucial, necessary supplement to standard building codes like ACI 318. For more details, visit American Concrete Institute
ACI 350.3-06, "Seismic Design of Liquid-Containing Concrete Structures," provides essential procedures for calculating dynamic liquid forces on concrete containment structures during seismic events. It distinguishes between impulsive and convective (sloshing) forces, ensuring the structural integrity of environmental engineering infrastructure. You can review a related presentation of the standard on Scribd . Seismic Design for ACI 350.3-06 Structures | PDF - Scribd ACI-350.3-06.pdf
6. Discussion
Design Philosophy
The standard mandates that the design must check for: ACI 350
- Using the site-specific seismic parameters ($S_DS$, $S_D1$) from the building code, find the spectral acceleration for both the impulsive ($S_ai$) and convective ($S_ac$) components.
- Note: Impulsive acceleration is typically much higher than convective acceleration.
- What it is: The portion of the liquid that moves in unison with the tank walls. It acts as if it were rigidly attached to the structure.
- Effect: It creates a high-frequency, high-acceleration force at the base and walls. This is usually the dominant force for short, squat tanks.