Analytical Study of R C C Deck Slab Bridge with Variable Parameters

Abstract

Bridges ware always proved to be the key elements for the infrastructural development of country .While designing the bridges ,three major aspects were always to be considered. These three factors were strength , stability and cost effectiveness .It was observed that cost economy was based on width to span ratio of bridge. Another important aspect of economics of bridge was the thickness of deck slab. The length/span of bridge was kept constant and magnitude of width was selected as variable parameter. Four different width to span ratio were taken as 0.75,1, 1.5 and 2.0 respectively. Keeping the same width to span ratios , design calculations were carried out for 0.6 m and 0.7 m deck slab thickness Design was carried out for Mix M-30 and steel as Fe -415. Total eight cases were studied to observe an economy of deck slab bridge Four cases were considered for different parameters of design of deck slab . For all the four width to span ratios ,mentioned above for 0.6 m deck slab thickness and four cases for 0.7 m deck slab thickness were attempted. It was concluded that for width to span ratio=1.0 , was suitable for minimum cost . The results thus obtained were shown in tabular form .The results thus shown were useful for optimizing the design of deck slab bridges . This analysis is extremely useful to civil engineers, practicing engineers, contractors, research scholars and budding engineers.