Abstract
In the article author presents method of investigation of tension forces in stay cable systems using dynamical methods. Research was carried out during stay cable system installation on WN-24 viaduct near Poznan, that is way it was possible to compare tension forces indicated directly by devices using for tensioning of cable-stayed bridges with results achieved indirectly by means of dynamical methods. Discussion of results was presented. Advantages of dynamical methods and possible fields of application was described. This method, which has been rarely used before, may occur interesting alternative in diagnostics of bridges in comparison to traditional methods.
Highlights
The main structural elements of cable-stayed bridges are: stay cable system, deck and pylon
In this paper the author introduces an alternative procedure for examination of tension forces in stay cable systems of cable-stayed bridges by using dynamical methods
Results presented in Tab. 1 show that in typical case it is possible to determine the tension force in cable with 95% reliability
Summary
The main structural elements of cable-stayed bridges are: stay cable system, deck and pylon. In this paper the author introduces an alternative procedure for examination of tension forces in stay cable systems of cable-stayed bridges by using dynamical methods. Measurements were carried out during installation of stay cable system, so it was possible to compare results obtained by dynamical methods with results received by devices used by contractors in installation process [1].
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