Design of Reinforced Concrete Circular Slabs
DOI:
https://doi.org/10.17762/msea.v71i2.1956Abstract
It is difficult to estimate the total quantity of steel required when steel reinforcement is installed in the form of mesh in a circular concrete slab at the base or domes at the top of an overhead service reservoir or any other structure. As a result, a significant amount of steel is wasted. Currently, the procedure for determining the total length of the steel bars is to measure each bar in the drawing and then add them up. The process is exhausting and takes a long time. We can calculate the total amount of steel required in a single line using a formula I have developed. This will not only make it simple and save time, but it will also prevent calculations from being incorrect and steel from being wasted due to an incorrect estimate. The bottom slab of an LNG in ground storage tank is made of thick reinforced concrete and has a depth of 7 to 10 meters. This paper discusses how size affects the shear strength of circular slabs to resist the pressure of groundwater uplift. Large reinforced concrete circular slabs subjected to distributed loads are the subject of experimental studies to test the effect of size on the shear strength of a thick reinforced concrete slab. As the slab's effective depth "d" increases, the reinforced concrete circular slab's shear strength gradually decreases without shear reinforcement. Experiments on large slabs revealed that the fourth root of the effective depth is inversely correlated with the size effect on the shear strength of a circular slab. Full and 85% design pressure were applied to bottom slabs with depths of 7.4 and 9.8 meters, respectively. The outcome demonstrated the reliability of the design method.