A Study on Cable-Stayed Bridges

Abstract

Cable-stayed bridges can be recognized as a suitable solution for connecting wide-span crossings. More than 600 cable bridges are constructed in the world till now while this process is in progress and this number is increasing. The span of cable bridges is between 100m to 500m wide usually while length of widest cable bridges has increased up to 1000m during this decade. Construction of such bridges still is so profitable and according to this point studying these bridges seems so important. Cable-stayed bridges are studied from many aspects such as number of spans, number of towers, number of cables and girder types. Among this process, this paper has gathered more than 100 cable stayed bridges around the world in a table and has assessed them based on different parameters and has categorized these bridges in 3 categories of harp, fan and radial. This categorizing has been based on a relationship between the pattern of cables and the width of spans. Fundamentals of this categorizing have been defined in the first step of this paper. In continue the results have been represented. At the end the relationship between the width of span of these bridges and the category will be analyzed and the final conclusion will be presented.