Comparative Study of Wide Deck Bridge Superstructure Systems and Their Suitability: A Review Paper

Increasing urban population, traffic flow and restricted available width to spread horizontally in cities,prestressed concrete wide-deck box girders have been increasingly usedespecially spine and wing arrangement either withbox girder with transverse ribs or box girder with struts, for constructing new bridges and flyovers. A ribbed cantilever slab or cantileverwith supportingstruts can increase the cantilever length and transverse stiffness while reducing the dead weight of the deck. Present trend is to provide only a single median pier to cover the wide deck, so that both surface level space underneath elevated corridor as well as at the elevated level space can be fully utilized for the traffic movement.Bridge aesthetics are also very important as bridges are located in cities, prime locations, tourist’s spots. A literature study revealed that the prestressed concrete box girders with transverse ribs are already used in to meet the requirements of wide bridge decks of single-cell concrete box girders. However, little research has been conducted. The objective of this study is to understand the behavior of different types of wide deck bridge superstructure systems and their suitability with respect to various aspects such as analysis and design along with their construction, site constraints, handling, segment erecting schemes for choosing best suitable option for a particular project.IJSRED - International Journal of Scientific Research and Engineering Developmen