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Cable-stayed bridges, diagnostic survey of stays Cover

Cable-stayed bridges, diagnostic survey of stays

Civil and Environmental Engineering
Volume 22 (2026): Issue 1 (March 2026)
By: Ladislav Klusáček,  Radim Nečas,  Jan Koláček,  Kristína Bezručová and  Martina Vašinová  
Open Access
|Mar 2026
Figures & tables

Figures & Tables

Figure 1:

Cable-stayed bridge over the Rožnovská Bečva near Hrachovec

Figure 2:

Cable-stayed bridge over the Elbe River near Poděbrady

Figure 3:

Cable-stayed bridge over the Svratka River in Židlochovice

Figure 4:

Stayes: a) routing of prestressing strands in a pipe, b) spacers between prestressing strands

Figure 5:

Conducting visual inspection and acoustic tracing: a) bridge in Židlochovice with short stayes, and b) vertical measuring sections for long stayes on the bridge near Poděbrady

Figure 6:

Drilled semi destructive probe in a stay cable — a) in the socket of the grouting hole, b) through the sheath

Figure 7:

Conducting dynamic measurement: a) measuring fixture with mounted accelerometer, b) excitation by striking with a hammer fitted with a rubber head

Figure 8:

Results of visual inspection: a) corrosion of external sheath joints, b) corrosion damage to the protective coating system of the anchorage and missing anchorage cover

Figure 9:

Condition of anchorages: a) on the pylon, b) in the anchorage chamber of the bridge over the Svratka River in Židlochovice

Figure 10:

Example of lubricant condition after removing the protective cover: a) in the anchorage chamber, b) on the pylon

Figure 11:

Condition of grouting for half of harp P3 with stays on the left side of the bridge over the Elbe River near Poděbrady

Figure 12:

Cut through probe through the stay cable sheath on the bridge in Židlochovice: a) indicative pH test, b) sealing with a welded steel patch

Figure 13:

Comparison of the first natural frequencies of stayes in the main span (orange – left stayes, blue – right stayes, green – expected trend)

Figure 14:

Strain-gauge measurement: a) installed vibrating-wire strain gauge, b) deformation and temperature record from a selected gauge

Calibration tensioning of stay cable Z45L on the bridge near the village of Hrachovec

Calibration of stay cable tension Z45LMeasured frequency f [Hz]Stay cable force FV [kN]Stay cable force according to NAPKO FN [kN]Comparison [%]
Initial condition before rectification5.20920
Anchor release5.34979968101%
Required tension6.571567162297%
Overtension before anchoring6.811697173298%
Re-anchoringxx
DOI: https://doi.org/10.2478/cee-2026-0034 | Journal eISSN: 2199-6512 | Journal ISSN: 1336-5835
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Language: English
Page range: 332 - 345
Submitted on: Aug 14, 2025
Accepted on: Sep 25, 2025
Published on: Mar 24, 2026
Published by: University of Žilina
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year
Keywords:
Cable-stayed bridge,
Stay cable diagnostics,
Dynamic analysis,
Structural service life,
Strain gauge monitoring
Related subjects:
Business and economics,
Political economics,
Economic theory, systems and structures,
Business management,
Industries,
Environmental management

© 2026 Ladislav Klusáček, Radim Nečas, Jan Koláček, Kristína Bezručová, Martina Vašinová, published by University of Žilina
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 22 (2026): Issue 1 (March 2026)
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