Comparative Study of Design of Elevated Storage Reservoir with IS:3370-2009 and IS:3370-2021

The Bureau of Indian Standards (BIS) has recently made significant revisions to the IS:3370—Concrete Structures for Retaining Aqueous Liquids—Code of Practice. Along with the changes in construction materials and procedure, major revisions have been made in the code of practice. Load calculations, permissible stresses, minimum reinforcement, and the overall design process have been revised. This has led to better designing of water tanks. To demonstrate the impact of the revised code, an Elevated Water Reservoir has been designed using both IS:3370-2009 and IS:3370-2021. The results have been compared to understand the effect of revision of code on the designing process. The revised code presents an opportunity for enhanced structural design practices, ensuring simpler solutions for designing of elevated storage reservoirs. The comparison presented in this paper will serve as a valuable reference for professionals involved in the design and construction of water tanks, offering a comprehensive understanding of the effects brought about by the revisions in IS:3370.