: Guidelines for construction techniques, including formwork, placement of reinforcement, concrete placement, and curing.
The in the file name indicates the year of publication: 2006 . As of 2024-2025, this standard has been superseded by newer versions (specifically ACI 350.3-20). However, the 2006 edition remains actively used for several reasons: ACI-350.3-06.pdf
Determine site class and spectral accelerations (S_S) and (S_1) from USGS maps. Step 2: Convert to (S_DS) and (S_D1) per ASCE 7-05 (the partner code to this -06 edition). Step 3: Go to Section 4.2 of the PDF. Compute the height-radius ratio (H/R). Step 4: Use Table 4.2.1 to find the impulsive mass ratio ((W_i / W)) and convective mass ratio ((W_c / W)). Step 5: Calculate the impulsive base shear (V_i) and convective base shear (V_c). Step 6: Combine loads per Section 4.5 ((V = \sqrtV_i^2 + V_c^2) for circular tanks; (V = V_i + 0.5V_c) for rectangular tanks). Step 7: Check sloshing height (Chapter 6). If height > freeboard, raise the wall or shorten the radius. Step 8: Design reinforcing bars following Chapter 7 (hoops at 4-inch spacing in plastic hinge zones). However, the 2006 edition remains actively used for
ACI-350.3-06.pdf provides explicit formulas to calculate the mass participation factors for both components based on tank geometry (height-to-radius ratio). It also provides design charts (Figures R4.1a through R4.1d) that are frequently copied into engineering spreadsheets. Compute the height-radius ratio (H/R)
The American Concrete Institute (ACI) is a leading authority and resource on concrete and concrete-related subjects. ACI publishes various codes, specifications, and guides for the design, construction, and testing of concrete structures. These documents are widely adopted by engineers, architects, contractors, and building officials in the construction industry.
If you are designing a new structure today, you should purchase the current version (ACI 350.3-20). Using the 2006 draft for new construction creates liability risks regarding building code compliance.
The standard introduced several key shifts from traditional rigid-tank methodologies: ACI-350 3-06 Seismic Design of Liquid-Containing