Following is the details of analysis and design of the new cable-stayed suspension bridge for the objective mentioned above. STAAD.Pro® (2018) and AutoCAD® (2018) are used in the analysis and design methodology. Without this bridge, travel distance is longer. There is a temple named Puthiyakavu Bhagavathy Temple in the banks of the river. It is a simple and accessible way of people for local transportation. During the flood situation in 2018, it was difficult use the ferry and this bridge was the life-line for the local community. The current bridge is not useful for pedestrian crossing, so there is a necessity of new bridge. There are a few houses located near the bridge. The direction of flow is from the East to the West direction. The bridge was constructed across Achankovil river, connecting the panchayaths viz-a-viz Konni and Aruvappulam. Long,1.5 meter wide bridge would cost Rs 47.22 lakh on the completion. The services of a 14 member team from Kozhikode was enlisted to complete the work in a time bound manner. The decision to construct 52 steel, hanging foot bridges at various places in the state was taken on in the backdrop of the ferry accident in Kozhikode one year ago. It was found that hundreds of children who depend on ferry boats, operated between the Iyravon temple ghats and the Cheeckanattu Kadavu, to reach schools in Konni. It is thought that such a study would help to perform an economical and environment friendly redesign of the existing bridge at this location. Objective of this paper is to perform the structural analysis and redesign of the existing cable-stayed suspension bridge across Achankovil river in Konni Panchayath, Pathanamthitta district, Kerala state, as shown in Figures 1 and 2. Many researchers have conducted works in this area. For simplifying the analysis, the cable was analyzed as a catenary and it is a reasonable hypothesis to some extent In contrast, more realistic and sophisticated analysis methods were proposed using Finite Element method considering nonlinearities issues. The challenge in suspension cable analysis is the material and geometrical nonlinearities the acting forces change cable cross section and extend the cable as a result to that deformation the young's modulus changes. The suspension cable is the major element of such bridges moreover, it is the key of the analysis. Suspension bridges are longest span structures, however, the major problem of those structures are its low lateral stiffness.
Keywords Structural analysis design, STAAD.Pro®, AutoCAD®, cable-stayed suspension bridge Such a work would enable the economic redesign of the existing suspension bridge. Design was done manually using relevant codes also. This included the design of the actual replacement of bridge deck, the effect this bridge would have on the surrounding area through an environmental impact, and the logistics associated with the construction phase. Various load-combinations were included in the frame analysis and worked on every aspect of the redesign. Musaliar College of Engineering & Technology, Pathanamthitta, KeralaĪbstract This technical paper highlights the project work pertaining to the structural analysis and redesign of a suspension cabled-bridge using a computer software, STAAD.Pro®. Thasnem Fathima1, Jincy K Jose2, Aparna E N3, Renjana R S4, Rajeev Kumar P5*ġ, 2,3,4 IV yr B. Structural Analysis and Redesign of a Cable-Stayed Suspension Bridge across Achankovil River in Kerala