Mediciones a escala real de torre autosoportada empleando acelerómetros y strain gauges

Katia Luis García; Vivian Beatriz Elena Parnás; Kristof Maes; Geert Lombaert

doi:10.14482/inde.38.1.531.38

Authors

Katia Luis García Universidad Tecnológica de La Habana José Antonio Echeverría. CUJAE. Departamento de Estructuras. Facultad de Ingenería Civil.
Vivian Beatriz Elena Parnás Universidad Tecnológica de La Habana José Antonio Echeverría (CUJAE)
Kristof Maes Universidad Católica de Leuven
Geert Lombaert Universidad Católica de Leuven

DOI:

https://doi.org/10.14482/inde.38.1.531.38

Keywords:

Dynamic characteristics, Full scale tests, Modal analysis, Sensors, System identification

Abstract

Full-scale tests are powerful tools to improve the knowledge of the dynamic response of the structures. Among its main applications is the identification of damages, design optimization, and model updating. Full-scale tests are performed, generally using accelerometers and strain gauges, applying systems identification techniques, such as operational modal analysis and operational modal analysis with eXogen input. The dynamic characteristics of the structure: natural frequencies, damping ratios, and mode shapes are obtained from these measurements. This work aims to describe the test of a real self-supporting tower, as well as the methodology of selecting the position of the sensors in the tower and the system identification techniques applied to this case. As a final result of the work, a guide is obtained that allows the development and application of this technique at similar structures tower-like.

Author Biography

Katia Luis García, Universidad Tecnológica de La Habana José Antonio Echeverría. CUJAE. Departamento de Estructuras. Facultad de Ingenería Civil.

Profesora Asistente en Universidad Tecnológica de La Habana José Antonio Echeverría. CUJAE. Departamento de Estructuras. Facultad de Ingenería Civil. Máster en Ciencias.

References

A. Kazemi Amiri, & C. Bucher, "A procedure for in situ wind load reconstruction from structural response only based on field testing data", Journal of Wind Engineering and Industrial Aerodynamics, vol. 167 pp. 75-86, 2017. 0167-6105. Doi:https://doi.org/10.1016/j.jweia.2017.04.00

J. Szafran, & K. Rykaluk, "A full-scale experiment of a lattice telecommunication tower under breaking load", Journal of Constructional Steel Research, vol. 120, pp. 160-175, 2016. 0143-974X. Doi: https://doi.org/10.1016/j.jcsr.2016.01.00

J. Taillon, F. Légeron, & S. Prud’homme, "Variation of damping and stiffness of lattice towers with load level", Journal of Constructional Steel Research, vol. 71, pp. 111-118, 2012. Doi: https://doi.org/10.1016/j.jcsr.2011.10.018.

L. Medina, & S. Díaz, "Propagación de las incertidumbres en las mediciones aplicada a la identifcación en el dominio de la frecuencia de matrices de inercia, rigidez y amortiguación de sistemas mecánicos", Ingeniería y Desarrollo, vol. 36, n.o 1, pp. 119-137, 2018. 2145-9371. Doi: https://doi.org/10.14482/inde.36.1.10942

A. Deraemaeker, E. Reynders, G. De Roeck, & J. Kulla, "Vibration-based structural health monitoring using output-only measurements under changing environment", Mechanical Systems and Signal Processing, vol. 22, pp. 34-56, 2008. 0888-3270. Doi: https://doi.org/10.1016/j.ymssp.2007.07.004

B. Peeters, "System identification and damage detection in civil engineering", Universidad Católica de Lovaina, 2000.

K. Maes, J. Peeters, E. Reynders, G. Lombaert, & G. De Roeck, "Identification of axial forces in beam members by local vibration measurements", Journal of Sound and Vibration, vol. 332, n.o 21, pp. 5417-5432, 2013. 0022-460X. Doi:https://doi.org/10.1016/j.jsv.2013.05.017

J. Brownjohn, F. Magalhaes, E. Caetano, & A. Cunha, "Ambient vibration re-testing and operational modal analysis of the Humber Bridge", Engineering Structures, vol. 32, pp. 2003-2018, 2010. 0141-0296. Doi: https://doi.org/10.1016/j.engstruct.2010.02.034

K. Maes et al., "Verification of joint input-state estimation for force identification by means of in situ measurements on a footbridge", Mechanical Systems and Signal Processing, vol. 75, pp. 245-260, 2016. 0888-3270. Doi: https://doi.org/10.1016/j.ymssp.2015.12.017

M. I. Friswell, & J. E. Mottershead, "Physical Understending of structures by model updating", ponencia presentada en International Conference on Structural System Identification, Kassel, Alemania, 2001.

E. Simoen, G. De Roeck, & G. Lombaert, "Dealing with uncertainty in model updating for damage assessment: a review", Mechanical Systems and Signal Processing, vol. 56-57, pp. 123-149, 2015. 0888-3270. Doi: https://doi.org/10.1016/j.ymssp.2014.11.001

B. Jaishi, & W. Ren, "Finite element model updating based on eigenvalue and strain energy residuals using multiobjective optimisation technique", Mechanical Systems and Signal Processing, vol. 21, pp. 2295-2317, 2007. 0888-3270. Doi: https://doi.org/10.1016/j.ymssp.2006.09.008

A. Pippi, J. K. Junior, & M. A. Silva Pinheiro, "Evaluation of dynamic characteristics in a transmission line latticed steel tower", en X International Conference on Structural Dynamics, Eurody, 2017, vol. 199, pp. 122-127. Doi: https://doi.org/10.1016/j.proeng.2017.09.177

E. Reynders, A. Teughels, & G. De Roeck, "Finite element model updating and structural damage identification using Omax data", Mechanical Systems and Signal Processing, vol. 24, n.o 5, pp. 1306-1323, 2010. Doi: https://doi.org/10.1016/j.ymssp.2010.03.014

E. Simoen, "Uncertainty quantification in finite element model updating", tesis publicada Lovaina, Bélgica, 2013.

T. Marwala, Finite-element-model updating using computacional Intelligence techniques. Applications to Structural Dynamics. 2010. Doi: https://doi.org/10.1007/ 978-1-84996-323-7

M. A. Lak, S. Francois, G. Degrande, & G. Lombaert, "Development and experimental validation of a numerical model for the prediction of ground vibration generated by pavement breaking", Soil Dynamics and Earthquake Engineering, vol. 79, pp. 199-210, 2015. Doi: https://doi.org/10.1016/j.soildyn.2015.09.015

C. Rainieri, & G. Fabbrocino, Operarational modal analysis of civil engineering structures. An introduction and guide for applications. Nueva York: Springer, 2014. Doi: https://doi.org/10.1007/978-1-4939-0767-0

R. Cantieni, "Experimental methods used in system identification of civil engineering structures", ponencia presentada en 2° Workshop: Problemi di vibrazioni nelle strutture civili e nelle costruzioni meccaniche, Italia, 2004.

E. Reynders, M. Schevenels, & G. De Roeck, MACEC 3.3: a MatLab toolbox for experimental and operational modal analysis, Faculty of Engineering, Department of civil engineering, Structural Mechanics Section, Lovaina, Bélgica, 2014.

B. Peeters, & G. De Roeck, "Stochastic system identification for operational modal analysis: a review", Journal of Dynamic Systems, Measurement, and Control, vol. 123, pp. 659-667, 2001. Doi: https://doi.org/10.1115/1.1410370

M. Ghalishooyan, & A. Shooshtari, "Operational modal analysis techniques and their theoretical and practical aspects: a comprehensive review and introduction", ponencia presentada en 6th International Operational Modal Analysis Conference, Gijón, España, 2015.

E. Reynders, K. Maes, G. Lombaert, & G. De Roeck, "Uncertainty quantification in operational modal analysis with stochastic subspace identification: validation and applications", Mechanical Systems and Signal Processing, vol. 66, pp. 13-30, 2016. 0888-3270. Doi: https://doi.org/10.1016/j.ymssp.2015.04.018.