INVESTIGATION OF THE EFFECTIVENESS OF VISCOUS DAMPERS CONNECTED TO ADJACENT BUILDINGS ON DYNAMIC BEHAVIOR UNDER SOIL-STRUCTURE INTERACTION EFFECTS

Yıl 2020, Cilt: 11 Sayı: 1, 51 - 72, 01.03.2020

Yavuz Selim Hatipoğlu Oğuz Akın Düzgün

Öz

In this study, the dynamic behavior of two adjacent structures with fluid viscous damper (FVD) was investigated under the influence of earthquake and considering soil-structure interaction (SSI). Adjacent structures with FVD’s were analysed for three different soil types. The modelling and analysis were made in two-dimensional (2D) space by using ANSYS package program. Viscous boundary conditions were used on the boundaries of 2D soil model. The analyses results were obtained in terms of displacement, acceleration, and shear force. The effect of FVD was investigated using different connection types. The damping coefficient of FVD’s was assumed constant in all analyses. When the results of the analysis are examined, it can be seen that FVD’s are effective for seismic response. However, it is necessary to consider the soil-structure interaction. Significant different structural results were obtained between fixed support and three different soil types. For example, in the same model, while the top floor displacement may reduce in Soil Type I, the top floor displacement may increase in Soil Type II. At the end of the study, it was seen that there was no need to connect the FVD to all floors. It was found sufficient to connect a fluid viscous damper only to the top floor (1 FVD) or to the top and middle floor (2 FVD). FVD’s have no effect on buildings with the similar dynamic character. In the analysis for seismic control of adjacent buildings, the effect of soil-structure interaction should certainly be taken into account.

Anahtar Kelimeler

Fluid viscous dampers, adjacent buildings, soil- structure interaction, seismic response, viscous boundary

Kaynakça

• [1] B. F. Spencer Jr and S. Nagarajaiah, “State of the art of structural control,” J. Struct. Eng., vol. 129, no. 7, pp. 845–856, 2003.
• [2] R. E. Klein and M. D. Healey, “Semi-active control of wind induced oscillations in structures,” in Structural control, Springer, 1987, pp. 354–369.
• [3] M. Kunieda, “Earthquake prevent design and earthquake proof design for structures,” J. JSME, vol. 79, no. 689, pp. 361–365, 1976.
• [4] R. E. Christenson, B. F. Spencer Jr, and E. A. Johnson, “Coupled building control using active and smart damping strategies,” Optim. Control Civ. Struct. Eng., pp. 187–195, 1999.
• [5] C. C. Patel and R. S. Jangid, “Seismic response of dynamically similar adjacent structures connected with viscous dampers,” IES J. Part A Civ. Struct. Eng., vol. 3, no. 1, pp. 1–13, 2010.
• [6] G. P. Cimellaro and D. Lopez-Garcia, “Seismic response of adjacent buildings connected by nonlinear viscous dampers,” in Structural Engineering Research Frontiers, 2007, pp. 1–12.
• [7] C. C. Patel and R. S. Jangid, “Influence of soil-structure interaction on response of adjacent SDOF structures connected by viscous damper,” 2008.
• [8] C. C. Patel, “Dynamic response of viscous damper connected similar multi-degree of freedom structures,” Int. J. Earth Sci. Eng., vol. 4, no. 6, pp. 1068–1071, 2011.
• [9] C. C. Patel and R. S. Jangid, “Dynamic response of adjacent structures connected by friction damper,” Earthquakes Struct., vol. 2, no. 2, pp. 149–169, 2011.
• [10] A. A. Farghaly, “Optimization of Viscous Dampers with the Influence of Soil Structure Interaction on Response of Two Adjacent 3-D Buildings under seismic load,” Optimization, vol. 4, no. 01, 2014.
• [11] Y. L. Xu, Q. He, and J. M. Ko, “Dynamic response of damper-connected adjacent buildings under earthquake excitation,” Eng. Struct., vol. 21, no. 2, pp. 135–148, 1999.
• [12] X. X. Qi and K. L. Chang, “Study of application of viscous dampers in seismic joints, proceeding of the International Conference on Structural Dynamics,” Vib. Noise Control. Hong Kong, 1995.
• [13] Z. Yang, Y. L. Xu, and X. L. Lu, “Experimental seismic study of adjacent buildings with fluid dampers,” J. Struct. Eng., vol. 129, no. 2, pp. 197–205, 2003.
• [14] A. V Bhaskararao and R. S. Jangid, “Optimum viscous damper for connecting adjacent SDOF structures for harmonic and stationary white‐noise random excitations,” Earthq. Eng. Struct. Dyn., vol. 36, no. 4, pp. 563–571, 2007.
• [15] A. V Bhaskararao and R. S. Jangid, “Optimal damping of viscous damper used to connect adjacent structures,” in 8th US national Conference on Earthquake Engineering, 2006.
• [16] J. Kim, J. Ryu, and L. Chung, “Seismic performance of structures connected by viscoelastic dampers,” Eng. Struct., vol. 28, no. 2, pp. 183–195, 2006.
• [17] M. E. Uz and M. N. S. Hadi, “Dynamic analyses of adjacent buildings connected by fluid viscous dampers,” in Seventh world conference on earthquake resistant engineering structures ERES VII. Limassol, Cyprus, Wessex Institute of, Technology, 2009, vol. 150, pp. 139–150.
• [18] “Fluid Viscous Damper,” 2019. [Online]. Available: http://www.roadjz.com/en/show.asp?id=12.
• [19] C.-Y. Hou, “Fluid dynamics and behavior of nonlinear viscous fluid dampers,” J. Struct. Eng., vol. 134, no. 1, pp. 56–63, 2008.
• [20] S. S. Tezcan and O. Uluca, “Reduction of earthquake response of plane frame buildings by viscoelastic dampers,” Eng. Struct., vol. 25, no. 14, pp. 1755–1761, 2003.
• [21] ANSYS, “R19.2 Academic.” Canonsburg, Pensilvanya, ABD.
• [22] Kandilli Observatory, “Kocaeli Earthquake,” 2018.. [Online] Available:http://www.koeri.boun.edu.tr/sismo/Depremler/tlarge2.htm