![]() I use a standard engineering method for figuring the reactions that isn’t shown in texts on the rectangular subject. In my experience the lowest stiffener (not the bottom edge) usually has the greatest load. The sum of all the reactions including the top edge should equal the total load on the vertical wall per the same length unit. In your spreadsheet, I question the values of the Reactions on each of the stiffeners as calculated. Being an older engineer, I have been doing this type of design work for some time and have my own approach (based mostly on Roark’s equations) which isn’t too far off yours. There isn’t a lot of info out there on designing rectangular tanks, and some of it has questionable elements. I applaud your work to ease the design process of designing rectangular tanks with horizontal stiffeners. ![]() To have complete construction overview including technical and financial estimation of rectangular RCC water tanks, our basic objective is to create a good service with functional utility at an acceptable cost.I was excited to see your spreadsheet and I haven’t had a chance to go completely through it yet, but I plugged in some numbers to check it out. The base performs no special structural function and can be designed with the minimum required steel. The tanks resting on ground are directly supported on levelled ground and the walls of these tanks are subjected to hydrostatic pressure while the base of the tank is subjected to weight of liquid with upward soil pressure. IS code method have been proved economical & feasible during design. When compared, several parameters such as moment, direct tension & depth of vertical walls as well as slab got analysed in which IS code method overwhelmed approximate method. The paper emphasizes on analytical comparison to justify the effectiveness of rectangular water tank for nominal capacity in terms of material feasibility design by approximate method and IS code method. Tanks are significantly used as storage structure which can be either below or above from ground level to store liquid petroleum, water, petroleum products and in-distinguishable liquids. Meanwhile minimal researches are made on rectangular RCC water tanks. ![]() Enormous research has been made to meet the water demand either on commercial or public level via RCC tank supply. ![]()
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