Open Journal Systems

Modal identification of a reduced-scale masonry arch bridge with experimental measurements and finite element method

Emre Alpaslan, Burcu Dinç, Kemal Hacıefendioğlu, Gökhan Demir, Olgun Köksal


DOI: https://doi.org/10.20528/cjsmec.2017.06.012

Abstract


This study aims to investigate modal parameters such as mode shapes, natural frequencies and damping ratios of a reduced scale one-span historical masonry arch bridge constructed in laboratory conditions by performing numerical and experimental analysis. Sarp Dere historical masonry bridge, in Ordu, Ulubey, has 15.5m in length and 4.75m in width was chosen as a prototype model. The reduced-scale bridge model and structural details were carried out in the scale of 1:12.5. Operational Modal Analysis (OMA) technique was used for experimental study. The experimental modal parameters of the bridge model were figured out by using Enhanced Frequency Domain Decomposition (EFDD). ANSYS software was used to create 3D finite element (FE) model and to expose the analytical modal parameters of the reduced-scaled bridge model. Moreover, FE model of the reduced-scale bridge model was calibrated based on the experimental results by using the Response Surface based FE model calibration technique to obtain more accurate results. The analysis results of experimental, initial and calibrated FE model were compared. It is noted that there are significant differences between the modal parameters obtained from experimental and initial FE model. Model calibration techniques are beneficial to get a more reasonable FE model.

Keywords


operational modal analysis; reduced-scale model; finite element model; historical masonry arch bridge

Full Text:

PDF

References


ANSYS, Release 14.5 (2013). ANSYS , Inc., Canonsburg, PA, USA.

Bayraktar A, Türker T, Sevim B, Altunışık AC, Yıldırım F (2009). Modal parameter identification of Hagia Sophia Bell-Tower via ambient vibration test. Journal of Nondestructive Evaluation, 28(1), 37-47.

Bayraktar A, Altunişik AC, Birinci F, Sevim B, Türker T (2010). Finite-element analysis and vibration testing of a two-span masonry arch bridge. Journal of Performance of Constructed Facilities, 24(1) 46-52.

Bendat JS, Piersol AG (2004). Random Data: Analysis and Measurement Procedures. John Wiley and Sons, USA.

Brencich A, Sabia D (2008). Experimental identification of a multi-span masonry bridge: The Tanaro Bridge. Construction and Building Materials, 22(10), 2087-2099.

Brincker R, Zhang L, Andersen P (2000). Modal identification from ambient responses using frequency domain decomposition. 18th International Modal Analysis Conference, San Antonio, USA, 625–630.

Çalık I, Bayraktar A, Türker T, Karadeniz H (2014). Structural dynamic identification of a damaged and restored masonry vault using ambient vibrations. Measurement, 55, 462–472.

Casciati S (2010). Response surface models to detect and localize distributed cracks in a complex continuum. Journal of Engineering Mechanics, 136(9), 1131–1142.

Deng L, Cai CS (2010). Bridge model updating using response surface method and genetic algoritm. Journal of Bridge Engineering, 15(5), 553-564.

Ewins DJ (1984). Modal Testing: Theory and Practice. Research Studies Press Ltd., England.

Foti D, Chorro SI, Sabba MF (2012). Dynamic investigation of an ancient masonry bell tower with Operational Modal Analysis - A non-destructive experimental technique to obtain the dynamic characteristics of a structure. The Open Construction and Building Technology Journal, 6, 384-391.

Friswell MI, Mottershead JE (1995). Finite Element Model Updating in Structural Dynamics. Kluwer Academic Publishers, Netherlands.

Gentile C, Saisi A, Cabboi A (2015). Structural identification of a masonry tower based on Operational Modal Analysis. International Journal of Architectural Heritage, 9(2), 98-110.

MacElroy DL, Kimpflen JF (1990). Insulation Materials, Testing and Applications. American Society for Testing and Material, USA.

Marcin L, Simone M, Bart P, Kim B, Peter B, Maciej K (2014). Updating finite element model of a wind turbine blade section using experimental modal analysis results. Shock and Vibration, 684786.

Nohutcu H, Demir A, Ercan E, Hokelekli E, Altintas G (2015). Investigation of a historic masonry structure by numerical and operational modal analyses. The Structural Design of Tall and Special Buildings, 24(13), 821–834.

Ren WX, Chen HB (2010). Finite element model updating in structural dynamics by using the response surface method. Engineering Structures, 32(8), 2455–2465.

Sevim B, Bayraktar A, Altunisik AC, Atamturktur S, Birinci F (2011). Finite element model calibration effects on the earthquake response of masonry arch bridges. Finite Elements in Analysis and Design, 47, 621-634.

SVS (2013). ARTeMIS Modal Pro 1.5. http://www.svibs.com

TSE 453 (2006). Turkish Standards Prefabricated Reinforced Components of Autoclaved Aerated Concrete. Ankara, Turkey.

Xin F, Shilin X, Xinong Z (2015). Model updating based on structural strain response using response surface method. The 22nd International Congress on Sound and Vibration (ICSV22), Florence, Italy.

Zhouhong Z, Xiaoson L, Jie N (2015). Finite element model validation of bridge based on structural health monitoring Part I: Response surface-based finite element model updating. Journal of Traffic and Transportation Engineering (English Edition), 2(4), 258-278.


Refbacks

  • There are currently no refbacks.