A review on box Girder Bridge, Cable-Stayed Bridge and Extra-dosed Bridge

Abstract

Bridges were constructed to cross the obstacles and transport access, which can either be water,
infrastructure or the elevation difference. For this purpose bridges are very important element in the transportation system
as its capacity governs the system. its failure or defective performance will result in serious disturbance of the traffic flow
and also the cost per kilometer of the bridge structure is many times that for the road or rail track on either side of bridge. It
is prudent therefore to devote special attention in design to ensure adequate strength and serviceability consistent with safety
and cost. This review is mainly focused on extra-dosed bridge cause its new type of bridge concept