We do not adhere to the ‘flat sheet’ design aspect of the AWWA standard, but we do design the tank sidewall sheet thicknesses per the requirements of AWWA per sections 5.4 and 5.5, as well as seismic requirements as defined in 14.3.4.2.3. All seismic loads are calculated per the requirements of chapter 14, including freeboard requirements.
Wind loads and requirements are determined by chapter 15 of AWWA, and we also utilize ASCE 7-16, chapter 29, which reflects much of the AWWA standard. The sidewall sheet design is based on a combination of AISI for bolted joint connections as well as the requirements set forth by AWWA chapter 5.
