Analysis and Design of Cable Stayed and Suspension Bridge Subjected to Wind Loading

Bridge can be defined as a structure which is built to pass a physical obstacle such as river road or valley and this structure does not close the way underneath it. The main objective of the bridgeis to provide a passage which can surpass any obstacle. A bridge is designed according to various specific purposes depending upon the need function and various physical factors. Cable-stayed bridge is having one or more columns called towers or pylons, with the cables directly supporting the bridge deck. Cable-stayed bridge is the bridge form in which the weight of the deck is supported by a number of nearly straight diagonal cables in tension running directly to one or more vertical towers. The towers transfer the cable forces to the foundations through vertical compression. The tensile forces in the cables also put the deck into horizontal compression. A suspension bridge is able to carry vertical loads with the help of curved cables in tension. Transfer of load takes place to both the towers, which is transferred by vertical compression to the ground, and anchorages, which is able to withstand the inward and occasionally vertical pull of the cables. The suspension bridge is often looked as an upside-down arch in tension with only the towers as compression members. In this research work, analysis and design of cable stayed and suspension bridge subjected to wind loading has been carried out.

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