References

NHESS

Natural Hazards and Earth System Sciences

NHESS

Nat. Hazards Earth Syst. Sci.

1684-9981

Copernicus Publications

Göttingen, Germany

10.5194/nhess-11-2011-2011

Dynamic response of masonry minarets strengthened with Fiber Reinforced Polymer (FRP) composites

Altunişik

A. C.

Karadeniz Technical University, Department of Civil Engineering, 61080, Trabzon, Turkey

20 07 2011

11 7 2011 2019

2011

This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/

This article is available from https://nhess.copernicus.org/articles/11/2011/2011/nhess-11-2011-2011.html

The full text article is available as a PDF file from https://nhess.copernicus.org/articles/11/2011/2011/nhess-11-2011-2011.pdf

Engineering structures strengthened with FRP composites are gaining popularity, and there is a growing need to understand and compare the behavior of these structures before/after FRP composite strengthening. In this paper, it is aimed to determine the dynamic response of masonry minarets before/after FRP composite strengthening. An Iskenderpaşa historical masonry minaret dating back to XVI century with a height of 21 m located in Trabzon, Turkey was selected as an application. Firstly, 3-D finite element model of the minaret was constituted using ANSYS software. Then, an analytical model of the minaret was analyzed using the 1992 Erzincan earthquake record, which occurred near the area, to determine the dynamic behavior. After this, the cylindrical body of the minaret was strengthened with FRP composite using different configurations and dynamic analyses were performed. Finally, dynamic responses of the minaret before and after FRP composite strengthening, such as displacements and maximum-minimum principal stresses, were compared. At the end of the study, it is seen that displacements had increased along the height of the minaret, maximum and minimum principal stresses occur at the region of transition segment and cylindrical body for all analyses. Also, it is seen from the earthquake analyses that FRP strengthening is very effective on the dynamic responses of the minaret.

References 1

Al-Saidy, A. H., Klaiber, F. W., Wipf, T. J., Al-Jabri, K. S., and Al-Nuaimi, A. S.: Parametric study on the behavior of short span composite bridge girders strengthened with carbon fiber reinforced polymer plates, Constr. Build. Mater., 22, 729–737, <a href="http://dx.doi.org/10.1016/j.conbuildmat.2007.01.020">https://doi.org/10.1016/j.conbuildmat.2007.01.020</a>, 2008.

ANSYS V10.1.3.: Swanson Analysis System, Pennsylvania, US, 2008.

Bathe, K. J.: Finite Element Procedures in Engineering Analysis, Englewood Cliffs, New Jersey, Prentice-Hall, 1996.

Bayraktar, A, Altunişik, A. C., Sevim, B., Türker T, and Akköse M, Coşkun, N.: Modal Analysis, Experimental Validation and Calibration of a Historical Masonry Minaret, J. Test. Eval., 36, 516–524, <a href="http://dx.doi.org/10.1520/JTE101677">https://doi.org/10.1520/JTE101677</a>, 2008.

Bayraktar, A., Birinci, F., Altunişik, A. C., Türker, T, and Sevim, B.: Finite Element Model Updating of Senyuva Historical Arch Bridge using Ambient Vibration Tests, Balt. J. Road Bridge E., 4, 177–185, <a href="http://dx.doi.org/10.3846/1822-427X.2009.4.177-185">https://doi.org/10.3846/1822-427X.2009.4.177-185</a>, 2009.

Doğangün, A., Acar, R., Livaoğlu, R., and Tuluk, Ö\.I.: Performance of masonry minarets against earthquakes and winds in Turkey, 1st International Conference on Restoration of Heritage Masonry Structures, Cairo, Egypt, 2006.

Frunzio, G., Monaco, M., and Gesualdo, A.: 3-D FEM analysis of a Roman Arch Bridge, Historical Constructions, 591–598, 2001.

Gentile, C. and Saisi, A.: Ambient vibration testing of historic masonry towers for structural identification and damage assessment, Constr. Build. Mater., 21, 1311–1321, <a href="http://dx.doi.org/10.1016/j.conbuildmat.2006.01.007">https://doi.org/10.1016/j.conbuildmat.2006.01.007</a>, 2007.

Ghosh, K. K. and Vistasp, M. K.: Evaluation of strengthening through laboratory testing of FRP rehabilitated bridge decks after in-service loading, Compos. Struct., 77, 206–222, <a href="http://dx.doi.org/10.1016/j.compstruct.2005.07.014">https://doi.org/10.1016/j.compstruct.2005.07.014</a>, 2007.

Kim, Y. J. and Harries, K. A.: Modeling of timber beams strengthened with various CFRP composites, Eng. Struct., 32, 3225–3234, <a href="http://dx.doi.org/10.1016/j.engstruct.2010.06.011">https://doi.org/10.1016/j.engstruct.2010.06.011</a>, 2010.

Krishnan, S.: Three-dimensional nonlinear analysis of tall irregular steel buildings subject to strong ground motion, Ph. D Thesis, California Institute of Technology, 2004.

Mortezaei, A., Ronagh, H. R., and Kheyroddin, A.: Seismic evaluation of FRP strengthened RC buildings subjected to near-fault ground motions having fling step, Compos. Struct., 92, 1200–1211, <a href="http://dx.doi.org/10.1016/j.compstruct.2009.10.017">https://doi.org/10.1016/j.compstruct.2009.10.017</a>, 2010.

Mosallam, A. S.: Out-of-plane flexural behavior of unreinforced red brick walls strengthened with FRP composites, Compos. Part B-Eng., 38, 559–574, <a href="http://dx.doi.org/10.1016/j.compositesb.2006.07.019">https://doi.org/10.1016/j.compositesb.2006.07.019</a>, 2007.

PEER (Pacific Earthquake Engineering Research Centre): <a href="http://peer.berkeley.edu/smcat/search.html">http://peer.berkeley.edu/smcat/search.html</a>, 2011.

Stierwalt, D. D. and Hamilton, H. R.: Creep of concrete masonry walls strengthened with FRP composites. Constr. Build. Mater., 19, 181–187, <a href="http://dx.doi.org/10.1016/j.conbuildmat.2004.07.001">https://doi.org/10.1016/j.conbuildmat.2004.07.001</a>, 2005.

Tao, Y., Stratford, T. J., and Chen, J. F.: Behavior of a masonry arch bridge repaired using fibre-reinforced polymer composites, Eng. Struct., 33, 1594–1606, <a href="http://dx.doi.org/10.1016/j.engstruct.2011.01.029">https://doi.org/10.1016/j.engstruct.2011.01.029</a>, 2011.

Zaki, M. K.: Investigation of FRP strengthened circular columns under biaxial bending, Eng. Struct., 33, 1666–1679, <a href="http://dx.doi.org/10.1016/j.engstruct.2011.02.003">https://doi.org/10.1016/j.engstruct.2011.02.003</a>, 2011.