MATEC Web Conf.
Volume 107, 2017Dynamics of Civil Engineering and Transport Structures and Wind Engineering – DYN-WIND’2017
|Number of page(s)||8|
|Published online||24 May 2017|
Estimation of cables’ tension of cable-stayed footbridge using measured natural frequencies
1 Opole University of Technology, Katowicka Street, No 48, 45-061 Opole, Poland
2 International University of Logistic and Transport, Soltysowicka, No. 19B, 51-168 Wrocław, Poland
* Corresponding author: firstname.lastname@example.org
This paper presents analysis of cables’ tension of steel cable-stayed footbridge using their field-test natural frequencies. A vibration method is usually used for the measured cable tension during the construction of cable systems stiffened with inclined cables. Practical formulas for the vibration method applied herein, mainly based on cable-sag and vertical angle effects (a survey measurement), have been verified on the one-tower steel cable-stayed bridge. The bridge is situated in Sieradz (Poland) and it was the structure with the longest span concerning all the cable-stayed bridges in Poland until 1999. The obtained cable axial forces for estimated natural frequencies of low- and high-order modes are verified using FEM models. The final conclusions drawn on the basis of conducted studies can be useful for technical diagnosis, monitoring programs and repair works of similar class of cable-stayed bridges.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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