Structural Engineering and Mechanics

  • 제40권1호
  • /
  • Pages.1-11
  • /
  • 2011
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Ambient vibration tests on a 19 - story asymmetric steel building

  • Shakib, H. (School of Civil Engineering, Tarbiat Modares University) ;
  • Parsaeifard, N. (International Institute of Earthquake Engineering and Seismology)
  • 투고 : 2010.04.24
  • 심사 : 2011.06.22
  • 발행 : 2011.10.10
⟨ 이전 논문 다음 논문 ⟩

초록

Ambient vibration tests were carried out to evaluate the dynamic properties of an asymmetric steel building with semi-rigid connections. The test case has many non-structural elements, constructed in the city of Tehran (Iran). The tests were conducted to obtain natural frequencies, mode shapes and damping ratio of the structure and then Fourier transform were used to analyze the velocity records obtained from the tests. The first and second natural periods of the building were obtained as 1.37 s and 1.28 s through the test and damping ratio for the first mode was calculated as 0.047. However, Natural periods obtained from finite element model have higher values from those gained from ambient vibration. Then the model was calibrated by modeling of the in-fill masonry panels at their exact locations and considering the boundary conditions by modeling two blocks near the block No. 3, but the differences were existed. These differences may be due to some hidden stiffness of nonstructural elements in the low range of elastic behavior, showing the structure stiffer than it is in reality.

키워드

참고문헌

  1. Asteris, G.M. (2003), "Lateral stiffness of brick Masonry in-filled plane frames", J. Struct. Eng.-ASCE, 129(8),1071-1079. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:8(1071)
  2. Bayraktar, A., Sevim, B., Altunisik, A.C. and Turker, T. (2008), "Earthquake analysis of reinforced concrete minaret using ambient vibration test results", J. Struct. Des. Tall Spec. Build., 19, 257-273.
  3. Beyen, K. (2008), "Structural identification for post-earthquake safety analysis of the Fatih mosque after 17 August 1999 Kocaeli earthquake", J. Eng. Struct., 30, 2165-2184. https://doi.org/10.1016/j.engstruct.2007.08.005
  4. Chen, B., Xu, Y.L. and Zhao, X. (2010), "Integrated vibration control and health monitoring of building Structures: a time-domain approach", Smart Struct. Syst., 6(7), 811-833. https://doi.org/10.12989/sss.2010.6.7.811
  5. Chen, C.H. and Ou, C.I. (2009), "Modal identification from field test and FEM updating of a long span cablestayed bridge", Int. J. Appl. Sci. Eng., 6(3), 251-262.
  6. Chopra, A.K. (1998), Dynamics of Structures, Theory and Application to Earthquake Engineering, University of California at Berkeley.
  7. Clotaire, M., Gueguen, P., Arem, S.E., Mazars, J. and Kotroniz, P. (2009), "Fullscale dynamic response of an RC building under weak seismic motions using earthquake recordings, ambient vibrations and modeling", J. Earthq. Eng. Struct. D., 39(4), 419-441.
  8. Clotaire, M. and Gueguen, P. (2006), "Dynamic behavior of the first instrumented building in France", First European Conference on Earthquake Engineering and Seismology, Geneva, Switzerland.
  9. CMG-6TD (2005), Operator's Guide, Part MAN-T60-0002.
  10. Donoho, D.L. and Johnstone, J.M. (1994), "Ideal spatial adaptation by wavelet shrinkage", Biometrika, 81, 425-455. https://doi.org/10.1093/biomet/81.3.425
  11. FEMA356 (2000), Prestandard and Commentary for the Seismic Rehabilitation of Buildings, Federal Emergency Management Agency, Washington D.C.
  12. Fragiacomo, M., Amadio, C. and Macorini, L. (2004), "Seismic response of steel frame under repeated earthquake ground motions", J. Eng. Struct., 26, 2021-2035. https://doi.org/10.1016/j.engstruct.2004.08.005
  13. Fu, C. (2009), "Passive vibration control of plan-asymmetric buildings using tuned liquid column gas dampers", Struct. Eng. Mech., 33(3), 339-355. https://doi.org/10.12989/sem.2009.33.3.339
  14. Gul, M. and Catbas, F.N. (2008), "Ambient vibration data analysis for structural identification and global assessment", J. Eng. Mech., 134, 650-662. https://doi.org/10.1061/(ASCE)0733-9399(2008)134:8(650)
  15. Ivanovic, S.S., Trifunac, M.D., Novikova, E.I., Gladkov, A.A. and Todorovska, M.I. (2000), "Ambient vibration test of a seven-story reinforced concrete building in Van Nuys, California, damaged by the 1994 Northridge earthquake", J. Soil Dyn. Earthq. Eng., 19, 391-411. https://doi.org/10.1016/S0267-7261(00)00025-7
  16. Khaldoon, A., Hazem, B.H., Zibdeh, S. and Hamdaoui, K. (2008), "Health monitoring of a historical monument in Jordan based on ambient vibration test", Smart Struct. Syst., 4, 195-208. https://doi.org/10.12989/sss.2008.4.2.195
  17. Mallat, S. (2009), A Wavelet Tour of Signal Processing, Academic Press in an Imprint of Elsevier.
  18. Shakib, H., Dardaei, S., Pirizadeh, M. and Moghaddasi, A. (2008), "Vulnerability evaluation and seismic rehabilitation of steel building with Semi-rigid connections (Case study - Tehran)", The 14th World Conference on Earthquake Engineering, Beijing, China.
  19. Skolnik, D., Hanyang, Y.E., Wallace, J. and Taciroglu, E. (2007), "Modal system identification and finite element model updating of a 15-story building using earthquake and ambient vibration data", Proceeding of Sessions of the 2007 Structures Congress, Structural Engineering Research Frontiers.
  20. Takhzod, S. and Blondet, M. (1997), "Ambient vibration study of Berkeley public library", Report to Berkeley Public Library, Report No. UCB/SEMM-97/10.
  21. Ventura, C.E., Finn, W.D.L., Lord, J.F. and Fujita, N. (2003), "Dynamic characteristics of a base isolated building from ambient vibration measurements and low lateral earthquake shaking", J. Soil Dyn. Earthq. Eng., 23, 313-322. https://doi.org/10.1016/S0267-7261(02)00208-7

피인용 문헌

  1. Frequency variation in construction stages and model validation for steel buildings vol.22, pp.3, 2016, https://doi.org/10.12989/scs.2016.22.3.647
  2. Effects of coordinated crowd motion on dynamic responses of composite floors in buildings vol.6, pp.1, 2013, https://doi.org/10.1080/19373260.2013.738522
  3. Vibration measurement and vulnerability analysis of a power plant cooling system vol.11, pp.2, 2013, https://doi.org/10.12989/sss.2013.11.2.199