Experimental and Numerical Evaluation of Dynamic Characteristics of 3DOF Reduced-Scale Model

Abderaouf Daci; Nassima Benmansour; Abdellatif Bentifour; Rachid Derbal

doi:10.18540/jcecvl10iss8pp20482

Autores

Abderaouf Daci Risk Assessment & Management Laboratory, University of Tlemcen, Algeria https://orcid.org/0009-0007-4928-7080
Nassima Benmansour Risk Assessment & Management Laboratory, University of Tlemcen, Algeria https://orcid.org/0000-0003-4472-0707
Abdellatif Bentifour Risk Assessment & Management Laboratory, University of Tlemcen, Algeria https://orcid.org/0009-0005-5527-6383
Rachid Derbal Risk Assessment & Management Laboratory, University of Tlemcen, Algeria / Department of Civil Engineering and Public Works, University of Ain Temouchent, Algeria https://orcid.org/0000-0001-7488-0424

DOI:

https://doi.org/10.18540/jcecvl10iss8pp20482

Palavras-chave:

Shaking table, 3DOF reduced model, Dynamic characteristics, Predominant frequencies, Damping ratio

Resumo

The dynamic behavior of structures subjected to seismic excitations is often predicted by numerical models based on the finite elements method. The reliability of the results of the numerical models must be subject to experimental validation. To achieve this, experimental tests using shaking tables lead to a more realistic prediction of the dynamic behavior of civil engineering structures. The main objective of this work is to develop an experimental procedure to determine the dynamic characteristics of civil engineering structures under seismic excitations. These dynamic characteristics are vital for understanding the real dynamic behavior of structures. For this, a three-degree-of-freedom (3DOF) reduced model of a steel structure adopting a 1:6 scale is developed. It is composed of three-level steel frames. Experimental tests are conducted using the shaking table of the RISAM laboratory (Risk Assessment and Management) at the University of Tlemcen. This work is focused on the two main dynamic characteristics of the reduced model, namely the predominant frequencies and the damping. The predominant frequencies of this reduced model are determined using a frequency sweep under a low-intensity white noise signal. This experimental procedure aims to detect the predominant frequencies by converting the recorded time history response to a signal depending on frequencies. Based on the logarithmic decrement method, the damping ratio is calculated. Next, a three-dimensional finite elements model of the reduced model is established. Several dynamic analyses of the finite elements model are performed. The experimental and numerical results are compared and discussed. The results obtained through these experimental tests show that the procedure used to determine the dynamic characteristics of this reduced model is very effective. Moreover, a perfect similarity is found between the experimental and numerical results.

Downloads

Não há dados estatísticos.

Referências

Anil K, C. (2012). DYNAMICS OF STRUCTURES?: Theory and Applications to Earthquake Engineering: Vol. Fourth Edition. William J. Hall, Editor.

Ayad, M. (2012). Contrôle de la santé des structures. Magister Thesis, University of Tlemcen, Algeria. [In french]

Bassoli, E., Vincenzi, L., D’Altri, A. M., de Miranda, S., Forghieri, M. & Castellazzi, G. (2018). Ambient vibration-based finite element model updating of an earthquake-damaged masonry tower. Structural Control and Health Monitoring, 25(5). https://doi.org/10.1002/stc.2150

Benmansour, N. (2013). Effet de la variabilité spatiale du mouvement sismique sur le comportement dynamique des ponts. Doctoral Thesis, University of Tlemcen, Algeria. [In french]

. http://dspace.univ-tlemcen.dz/bitstream/112/12129/1/Doct.Gc.Benmansour..pdf

Benmansour, N., Derbal, R., Djafour, M., Ivorra, S. & Matallah, M. (2021). Impact of Local Site Conditions on Simulation of Non-stationary Spatial Variable Seismic Motions. Periodica Polytechnica Civil Engineering, 65(3), 751–760. https://doi.org/10.3311/PPCI.16208

Benmansour, N., Djafour, M., Bekkouche, A., Zendagui, D. & Benyacoub, A. (2012). Seismic response evaluation of bridges under differential ground motion: A comparison with the new Algerian provisions. European Journal of Environmental and Civil Engineering, 16(7), 863–881. https://doi.org/10.1080/19648189.2012.681951

Brownjohn, J. M. W., Xia, P. Q., Hao, H. & Xia, Y. (2001). Civil structure condition assessment by FE model updating: Methodology and case studies. Finite Elements in Analysis and Design, 37(10). https://doi.org/10.1016/S0168-874X(00)00071-8

Chen, H.-P. (2017). Monitoring-Based Reliability Analysis of Aging Concrete Structures by Bayesian Updating. Journal of Aerospace Engineering, 30(2). https://doi.org/10.1061/(asce)as.1943-5525.0000587

Chen, H. & Ni, Y. (2018). Introduction to Structural Health Monitoring. Structural Health Monitoring of Large Civil Engineering Structures, March 2021, 1–14. https://doi.org/10.1002/9781119166641.ch1

Derbal, R. (2021). Simulation of spatially variable seismic ground motions: Site effect and dynamic response. Doctoral Thesis, University of Tlemcen, Algeria. http://dspace1.univ-tlemcen.dz/handle/112/16994 [In french]

Derbal, R. (2017). Influence de l’Effet de Site sur le Comportement Dynamique des Ponts. 23ème Congrés Français de Mécanique. [In french]

Derbal, Rachid, Belhadj, A. H. M., Benmansour, N., Kourdi, B. & Bennaceur, S. M. (2024). Seismic stability of the famous telemly bridge-building located in Algiers. STUDIES IN ENGINEERING AND EXACT SCIENCES, 5(2), e10167. https://doi.org/10.54021/seesv5n2-430

Derbal, R., Benmansour, N. & Djafour, M. (2018). Impact of spatial variability of earthquake ground motion on seismic response of a railway bridge. International Journal of Computational Methods and Experimental Measurements, 6(3), 910–920. https://doi.org/10.2495/cmem-v6-n5-910-920

Derbal, Rachid, Benmansour, N. & Djafour, M. (2022). Simulation of Spatially Variable Artificial Earthquake: A Case Study of Different Site Conditions. Modelling in Civil Environmental Engineering, 16(4), 13–24. https://doi.org/doi:10.2478/mcee-2021-0017

Derbal, Rachid, Benmansour, N., Djafour, M., Matallah, M. & Ivorra, S. (2019). Viaduct seismic response under spatial variable ground motion considering site conditions. Earthquake and Structures, 17(6), 557–566. https://doi.org/10.12989/eas.2019.17.6.557

Derbal, Rachid, Benmansour, N. & Mohammed Belhadj, A. H. (2023). Dynamic Analysis of the Longest Viaduct in Algeria Under Spatial Variable Ground Motion According to RPOA and Eurocode 8 Seismic Codes. Journal of Vibration Engineering and Technologies, 1–14. https://doi.org/10.1007/S42417-023-01218-7/METRICS

Derbal, Rachid, Meddane, N., Zendagui, D., Bekkouche, A. & Djafour, M. (2007). Etude du comportement dynamique d’un barrage poids-voûte face au mouvement sismique différentiel. 18th French Mechanical Congress. http://documents.irevues.inist.fr/handle/2042/16224

Djafour, M., Meddane, N., Derbal, R., Megnounif, A., Zendagui, D. & Bekkouche, A. (2006). Response of a gravity arch dam to spatially varying earthquake ground motion. 8th US National Conference on Earthquake Engineering 2006, 5.

Gong, M. S., Xie, L. L. & Ou, J. P. (2008). Modal parameter identification of structure model using shaking table test data. The 14 Th World Conference on Earthquake Engineering.

Jiménez-Alonso, J. F. & Sáez, A. (2016). Model updating for the selection of an ancient bridge retrofitting method in Almeria, Spain. Structural Engineering International, 26(1). https://doi.org/10.2749/101686615X14355644771333

Li, Y., Luo, Y., Wan, H. P., Yun, C. B. & Shen, Y. (2020). Identification of earthquake ground motion based on limited acceleration measurements of structure using Kalman filtering technique. Structural Control and Health Monitoring, 27(1), 1–18. https://doi.org/10.1002/stc.2464

Moravej, H., Jamali, S., Chan, T. H. T. & Nguyen, A. (2017). Finite element model updating of civil engineering infrastructures: A literature review. SHMII 2017 - 8th International Conference on Structural Health Monitoring of Intelligent Infrastructure, Proceedings.

MTS Systems Corporation. (2014a). RPC Pro Applications - Software Reference.

MTS Systems Corporation. (2014b). RPC Pro Product Installation.

MTS Systems Corporation. (2014c). RPC Pro Tools - Software Reference.

Rachid Derbal, Nassima Benmansour, Mustapha Djafour, Mohammed Matallah & Salvador Ivorra. (2019, August). Simulation des signaux sismiques variables dans l’espace en prenant en compte l’effet de site. 24ème Congrès Français de Mécanique 2019 . https://cfm2019.sciencesconf.org/254894 [In french]

Rachid Derbal, Nassima Benmansour, Mustapha Djafour, Mohammed Matallah & Salvador Matallah. (2021, June 2). Sensitivity of Spatial Variable Seismic Ground Motion to Multiple Local Site Conditions. 9th Turkish Conference on Earthquake Engineering (9TCEE) .

Sanli, A. & Çelebi, M. (2001). Earthquake damage detection of a thirteen story building using recorded responses. 3rd International Workshop on Structural Health Monitoring (Pp. 660-669)., 660–669.

Simoen, E., De Roeck, G. & Lombaert, G. (2015). Dealing with uncertainty in model updating for damage assessment: A review. In Mechanical Systems and Signal Processing (Vol. 56). https://doi.org/10.1016/j.ymssp.2014.11.001

Suita, K., Matsuoka, Y., Yamada, S., Shimada, Y., Tada, M. & Kasai, K. (2009). Experimental Procedure and Elastic Response Characteristics of Shaking Table Test. Journal of Structural and Construction Engineering (Transactions of AIJ), 74(635). https://doi.org/10.3130/aijs.74.157

Williams, D. M., Williams, M. S. & Blakeborough, A. (2001). Numerical Modeling of a Servohydraulic Testing System for Structures. Journal of Engineering Mechanics, 127(8). https://doi.org/10.1061/(asce)0733-9399(2001)127:8(816)

Xie, L., Zhou, Z., Zhao, L., Wan, C., Tang, H. & Xue, S. (2018). Parameter Identification for Structural Health Monitoring with Extended Kalman Filter Considering Integration and Noise Effect. Applied Sciences 2018, Vol. 8, Page 2480, 8(12), 2480. https://doi.org/10.3390/APP8122480

Zellat, K., Djemai, M. C. & Bensaibi, M. (2023). The effect of earthquake ground motions parameters on bridges fragilities. Canadian Conference - Pacific Conference on Earthquake Engineering, Vancouver, British Columbia June 25th – June 30th, 2023.

Zerva, A. (2009). Spatial variation of seismic ground motions: modeling and engineering applications. In T. & F. CRC Press, Group (Ed.), Spatial Variation of Seismic Ground Motions. CRC Press. https://doi.org/10.1201/9781420009910

Zhou, C., Chase, J. G., Rodgers, G. W., Huang, B. & Xu, C. (2017). Effective Stiffness Identification for Structural Health Monitoring of Reinforced Concrete Building using Hysteresis Loop Analysis. Procedia Engineering, 199. https://doi.org/10.1016/j.proeng.2017.09.072