Skip to main content
Have a personal or library account? Click to login
Assessing the Behaviour of Engineering Structures: Application to the Dallet Steel Bridge Cover

Assessing the Behaviour of Engineering Structures: Application to the Dallet Steel Bridge

Civil and Environmental Engineering
Volume 22 (2026): Issue 1 (March 2026)
By: Julian Raedersdorff,  David Clair,  Alaa Chateauneuf and  Abdelhamid Bouchair  
Open Access
|Mar 2026
Figures & tables

Figures & Tables

Figure 1:

Elevation view of the structure from upstream

Figure 2:

View of the second span of the bridge (P1–P2) from upstream

Figure 3:

View from A0

Figure 4:

View of the bridge deck cross-section

Figure 5:

Bottom view of the existing bridge deck

Figure 6:

View of the dumper before demolition

Figure 7:

View after deck demolition

Figure 8:

Plan view showing the location of the 22 accelerometers and the demolition area

Figure 9:

Cross-section view of the structure

Figure 10:

Sensor reference and hinge support (on Pier P2)

Figure 11:

View of the accelerometer developed by Cideco

Figure 12:

Flowchart of the acquisition system

Figure 13:

Simplified finite element model diagram

Figure 14:

View of the first bending mode and sensor positions along the span

Figure 15:

Zoom on the model

Figure 16:

a) First bending modes, b) second bending modes from Octave φ^i,jS0 \widehat\phi _{i,j}^{S0} , Robot φˇi,jS0 {\check \phi} _{i,j}^{S0} and OMA φ˜i,jS1 \widetilde\phi _{i,j}^{S1}

Figure 17:

a) First bending modes, b) second bending modes from Octave φ^iS2 \widehat\phi _i^{S2} and OMA φ˜iS2 \widetilde\phi _i^{S2} , φ˜iS1 \widetilde\phi _i^{S1}

Figure 18:

Parameters variation during the model updating from KS0 to KS1

Figure 19:

Parameters variation during the model updating from MS1 to MS2

First two natural frequencies with detailed FEM (Robot), Octave FEM and OMA values, for states S0 , S1 and S2

State SkNatural frequency 1 [Hz]Natural frequency 2 [Hz]
Fˇ1Sk {{\boldsymbol{\check{F}}}} _{\rm{1}}^{\boldsymbol{Sk}} (Robot) Fˇ1Sk \boldsymbol{\check{F}} _{\rm{1}}^{\boldsymbol{Sk}} (Octave) Fˇ1Sk \boldsymbol{\check{F}} _{\rm{1}}^{\boldsymbol{Sk}} (OMA) Fˇ1Sk \boldsymbol{\check{F}} _{\rm{1}}^{\boldsymbol{Sk}} (Robot) Fˇ1Sk \boldsymbol{\check{F}} _{\rm{1}}^{\boldsymbol{Sk}} (Octave) Fˇ1Sk \boldsymbol{\check{F}} _{\rm{1}}^{\boldsymbol{Sk}} (OMA)
S02.502.49-3.513.74-
S1-2.442.45-3.693.46
S2-2.462.49-3.723.71
DOI: https://doi.org/10.2478/cee-2026-0045 | Journal eISSN: 2199-6512 | Journal ISSN: 1336-5835
Journal RSS Feed
Language: English
Page range: 413 - 424
Submitted on: Aug 13, 2025
Accepted on: Oct 3, 2025
Published on: Mar 24, 2026
Published by: University of Žilina
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year
Keywords:
Structural health,
Monitoring,
Instrumentation,
Modal Analysis,
Damage detection,
Steel Bridges
Related subjects:
Business and economics,
Political economics,
Economic theory, systems and structures,
Business management,
Industries,
Environmental management

© 2026 Julian Raedersdorff, David Clair, Alaa Chateauneuf, Abdelhamid Bouchair, published by University of Žilina
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 22 (2026): Issue 1 (March 2026)
Previous article
Next article