Seismic Intervention and Dynamic Testing of an Arch Bridge

Kleidi Islami; Giovanni Tecchio; Claudio Modena

doi:10.4028/www.scientific.net/AMM.105-107.1159

Paper Titles

A Dynamic Characteristic Analysis of Continuous Welded Rail Track under Different Longitudinal Stress
p.1134

Finite Element Analysis of Effect of Fluid Scour on Piled Pier Bridge
p.1138

An Extraction Method for Live-Load Effect of Bridge Based on EEMD
p.1144

Collapse Pattern Identification for Cable-Stayed Bridges Based on Ultimate Limit Analysis
p.1149

Seismic Intervention and Dynamic Testing of an Arch Bridge
p.1159

Mitigation of Wind-Rain-Induced Cable Vibration in Cable-Stayed Bridges: Energy Cost Assessment
p.1165

The Numerical Simulations of Forces Acting on TBM Disc Cutters with the Consideration of Confining Pressure and Damage in Rocks
p.1170

Study on Reasonable Fastener Stiffness of Ballastless Turnout's Vibration Decrease and Noise Reduction of 350 km/h Passenger Dedicated Line
p.1175

The Influences on Turnout Dynamic Responses due to its Irregularities
p.1181

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 105-107Seismic Intervention and Dynamic Testing of an...

Seismic Intervention and Dynamic Testing of an Arch Bridge

Abstract:

This work presents the dynamic tests on a retrofitted masonry arch bridge. The Gresal Bridge, located in the North-East of Italy, was highly exposed to seismic hazard, due to the slenderness of its high piers. A retrofit intervention has been carried out, and a new rc slab has been built under the pavement, anchored to the piers with high strength vertical ties and restrained at the abutments, to create a new resistance arrangement withstanding inertial forces. The dynamic behaviour has been initially assessed with numerical models comparing the response of the bridge before and after the repair, and has subsequently been tested by the Output-Only technique to detect the variation of the modal response induced by the strengthening intervention. The dynamic tests have shown the structure to be more rigid than expected and, after calibration, a good agreement to exist between the numerical frequencies and the experimental records captured on the retrofitted bridge.

You might also be interested in these eBooks

Vibration, Structural Engineering and Measurement I

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 105-107)

Pages:

1159-1164

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.105-107.1159

Citation:

Cite this paper

Online since:

September 2011

Authors:

Kleidi Islami, Giovanni Tecchio, Claudio Modena

Keywords:

Dynamic Identification, Masonry Arch Bridge, Seismic Retrofit, Structural Identification

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Da Porto, F., Franchetti, P., Grendene, M., Valluzzi, M., Modena, C., 5th Int. Conference on Arch Bridges (ARCH'07), 2007, pp.451-458.

Google Scholar

[2] Brincker, R, Zhang, L, and Andersen, P, Modal identification of output-only systems using FDD, 2001.

Google Scholar

[3] B. Peeters and G. De Roeck, Reference-based stochastic subspace identiﬁcation for output-only modal analysis, Mechanical Systems and Signal Processing, 1999, 855–878.

DOI: 10.1006/mssp.1999.1249

Google Scholar

[4] K. Islami, C. Modena, F.Da Porto, F. Casarin, M. Dalla Benetta, , Dynamic testing and structural identification of two R.C. arch bridges, First Middle East Conference on Smart Monitoring, Assess-ment and Rehabilitation of Civil Structures, SMAR-Dubai, 2011.

Google Scholar

[5] Cauberghe, B., Applied Frequency-Domain System Identification in the Field of Experimental and Operational Modal Analysis, Ph.D. Thesis, Vrije Universiteit Brussel, 2004.

Google Scholar