BEHAVIOR OF CABLE STAYED BRIDGE: PARAMETRIC STUDY

Abstract

The fundamental difference between the two types of bridges is the manner in which the cables support the bridge deck. In suspension bridges, the deck is supported at relatively short intervals by vertical hanger cables which in turn are suspended from main cables. Main cables in these are relatively flexible and thus take a shape which is a function of position of load and magnitude of load. On the other hand, cable-stayed bridges have deck that is directly supported from the tower with the help of stay cables, thus providing a significantly stiffer structure. Also generally in cable stayed bridges the deflections are less, therefore the deck can be made lighter and more slender. This improves structurally the wind resistance and aesthetically the appearance (Troitsky, 1988).