STUDY ON CONVENTIONAL ORGANIC SOLAR CELL CIRCUIT

Abstract

It is critical to examine the effect of cross-section size andthickness of concrete cover on the residual load carrying capacity of concrete columns, as fire endurance generally improves with member size of cross-section and thickness of concrete cover at the same load level. It is extremely rare to do research on the effect of size on the residual load carrying capacity of unstressed Reinforced Concrete (RC) columns exposed to fire. There are only a few studies available on this concept. To determine the effect of size of cross-section and thickness of concrete cover on percentage residual load carrying capacity, experiments were conducted at increased temperatures of 300,500, and 800°C on 150x150mm, 200x200mm, and 230x230mm square RC columns with an L/D ratio of 4, concrete covers of 20,30, and 40mm, and fire durations of F30 (0.5hr), F60 (1.0hr), F90 (1.5hr), and F120 (2.0hr) in an unstressed condition. At all temperatures, it was discovered that when the column size and cover thickness increase, the percentage residual carrying capacity increases as well. Maximum loss of residual load carrying capacity occurred at 800°C, the loss being 63.20%, 41.60% and 32.10% for 150,200 and 230mm size columns respectively at 2.0 hours with 20mm cover. The minimum cover was determined to be 30mm for all three column sizes.