Abstract
The method of estimating tension of bridge cables by measuring their natural frequency, so-called vibration method, is convenient on construction site of structures with cables, Concerning the method some papers have been reported hitherto. In these reports cables are assumed to be clamped on both ends. However, for the estimated tension of cable supported by open sockets, vibration of the sockets has a notable effect, which has not been investigated. In order to get reliable and accurate estimation for tension of cables with open socket, some experimental works were performed and reported in this paper.
