Numerical Analysis of Semi-Buried Cisterns Constructed with Precast Cementitious Plates

Resumo

Semi-buried cisterns formed by cementitious plates represent an important solution for water harvesting and storage in arid and semi-arid regions, being fundamental to ensure water security and combat water scarcity, as presented in the governmental program One Million Cisterns. Therefore, this study proposes to explore preliminary strategies of numerical modeling using finite element methods, employing Abaqus Simulia software. The objective is to analyze in detail the structural behavior of these cisterns, aiming to optimize their design and performance. The adopted methodology involves a literature review to support the numerical modeling and subsequently compare the results with traditional analytical methods. The preliminary results indicate a promising possibility of reducing the horizontal reinforcement of the walls compared to the technical recommendations of the current agencies. Thus, preserving safety and durability conditions while implying constructions with lower costs, thereby promoting the social development of the served communities. Therefore, this study represents a significant advancement in the understanding and optimization of semi-buried cisterns, emphasizing their importance and potential to address challenges related to water storage.