A new ground motion record selection procedure based on the effects of spectral share and period elongation

Document Type : Article

Authors

Department of Civil Engineering, University of Isfahan, Hezar Jarib St., Isfahan, Iran

Abstract

One of the most prevalent ground motion Intensity Measures (IMs) is the spectral acceleration at the fundamental period of the structure. Previous research has shown that vectorizing scalar IMs leads to a more reliable structural response, particularly in the nonlinear region and near collapse. Furthermore, nonlinear behavior of ductile structures results in an elongation in the "effective period" of the structure. Therefore, this paper proposes a new approach for selecting ground motion records considering the effect of spectral shape and period elongation. This method contains two disaggregation analyses at the fundamental and elongated period of the structure. Nonlinear dynamic analysis is conducted on a set of reinforced concrete moment resisting frames designed based on ACI 318-05 as representatives of modern structures. Results show a considerable decrease in the median collapse prediction, margin against collapse and dispersion of the structural response. The presented approach can give a better prediction for the vulnerability of the structure toward collapse.

Keywords


References
1. Araujo, M., Macedo, L., Marques, M., and Castro
J.M. \Code-based record selection methods for seismic
performance assessment of buildings", Earthquake
Engineering and Structural Dynamics, 45, pp. 129{148
(2016).
2. Han, S.W. and Ha, S.J. \Assessment of ground motion
S. Ale Saheb Fosoul et al./Scientia Iranica, Transactions A: Civil Engineering 28 (2021) 109{123 121
selection criteria speci ed in current seismic provisions
with an accurate selection algorithm", Bulletin of
Earthquake Engineering, 15, pp. 4113{4132 (2017).
3. Macedo, L. and Castro, J.M. \SelEQ: An advanced
ground motion record selection and scaling framework",
Advances in Engineering Software, 114, pp.
32{47 (2017).
4. Ha, S.J. and Han, S.W. \An ecient method for
selecting and scaling ground motions matching target
response spectrum mean and variance", Earthquake
Engineering and Structural Dynamics, 45, pp. 1381{
1387 (2016).
5. Moschen, L., Medina, R.A., and Adam, C. \A ground
motion record selection approach based on multiobjective
optimization", Journal of Earthquake Engineering,
23(4), pp. 669{687 (2019).
6. Shahrouzi, M. and Sazjini, M. \Re ned harmony
search for optimal scaling and selection of accelerograms",
Scientia Iranica, 19, pp. 218{224 (2012).
7. Dehghani, M. and Tremblay, R. \Robust periodindependent
ground motion selection and scaling for
e ective seismic design and assessment", Journal of
Earthquake Engineering, 20, pp. 185{218 (2016).
8. Yakhchalian, M., Ghodrati Amiri, G., and Eghbali, M.
\Reliable seismic collapse assessment of short-period
structures using new proxies for ground motion record
selection", Scientia Iranica, 24, pp. 2283{2293 (2017).
9. Shome, N., Cornell, C.A., Bazzurro, P., and Carballo,
J.E. \Earthquakes, records, and nonlinear responses",
Earthquake Spectra, 14, pp. 469{500 (1998).
10. Baker, J.W. and Cornell, C.A. \A vector-valued
ground motion intensity measure consisting of spectral
acceleration and epsilon", Earthquake Engineering &
Structural Dynamics, 34, pp. 1193{1217 (2005).
11. Haselton, C.B., Baker, J.W., Liel, A.B., and Deierlein,
G.G. \Accounting for ground-motion spectral
shape characteristics in structural collapse assessment
through an adjustment for epsilon", Journal of Structural
Engineering, 137, pp. 332{344 (2011).
12. Luco, N. and Cornell, C.A. \Structure-speci c scalar
intensity measures for near-source and ordinary earthquake
ground motions", Earthquake Spectra, 23(2),
pp. 357{392 (2007).
13. Iwan, W. \Drift spectrum: measure of demand for
earthquake ground motions", Journal of Structural
Engineering, 123(4), pp. 397{404 (1997).
14. Baker, J.W. \Conditional mean spectrum: Tool for
ground-motion selection", Journal of Structural Engineering,
137, pp. 322{331 (2010).
15. McGuire, R.K. \Probabilistic seismic hazard analysis
and design earthquakes: closing the loop", Bulletin of
the Seismological Society of America, 85, pp. 1275{
1284 (1995).
16. Kazantzi, A.K. and Vamvatsikos, D. \Intensity measure
selection for vulnerability studies of building
classes", Earthquake Engineering & Structural Dynamics,
44, pp. 2677{2694 (2015).
17. Kohrangi, M., Vamvatsikos, D., and Bazzurro, P. \Implications
of IM selection for seismic loss assessment of
3D buildings", Earthquake Spectra, 32, pp. 2167{2189
(2016).
18. Kohrangi, M., Bazzurro, P., Vamvatsikos, D., and
Spillatura, A. \Conditional spectrum-based ground
motion selection using average spectral acceleration",
Earthquake Engineering & Structural Dynamics, 46,
pp. 1667{1685 (2017).
19. Kohrangi, M., Bazzurro, P., and Vamvatsikos, D. \Vector
and scalar IMs in structural response estimation:
Part I - Hazard analysis", Earthquake Spectra, 32, pp.
1507{1524 (2016).
20. Kohrangi, M., Bazzurro, P., and Vamvatsikos, D. \Vector
and scalar IMs in structural response estimation:
Part II - Building demand assessment", Earthquake
Spectra, 32, pp. 1525{1543 (2016).
21. Modica, A. and Sta ord, P.J. \Vector fragility surfaces
for reinforced concrete frames in Europe", Bulletin of
Earthquake Engineering, 12, pp. 1725{1753 (2014).
22. Jayaram, N., Shome, N., and Rahnama, M. \Development
of earthquake vulnerability functions for
tall buildings", Earthquake Engineering & Structural
Dynamics, 41, pp. 1495{1514 (2012).
23. Trifunac, M., Ivanovic, S., and Todorovska, M. \Apparent
periods of a building. II: Time-frequency analysis",
Journal of Structural Engineering, 127, pp. 527{
537 (2001).
24. Clinton, J.F., Bradford, S.C., Heaton, T.H., and
Favela, J. \The observed wander of the natural frequencies
in a structure", Bulletin of the Seismological
Society of America, 96, pp. 237{257 (2006).
25. Masi, A. and Vona, M. \Experimental and numerical
evaluation of the fundamental period of undamaged
and damaged RC framed buildings", Bulletin of Earthquake
Engineering, 8, pp. 643{656 (2010).
26. Pinho, R. and Elnashai, A.S. \Dynamic collapse testing
of a full-scale four storey RC frame", ISET Journal
of Earthquake Technology, 37, pp. 143{163 (2000).
27. Jeong, S.H. and Elnashai, A.S. \Analytical assessment
of an irregular RC frame for full-scale 3D Pseudodynamic
testing Part I: Analytical model veri cation",
Journal of Earthquake Engineering, 9, pp. 95{128
(2005).
28. Zembaty, Z., Kowalski, M., and Pospisil, S. \Dynamic
identi cation of a reinforced concrete frame in progressive
states of damage", Engineering Structures, 28, pp.
668{681 (2006).
29. Dunand, F., Gueguen, P., Bard, P., Rodgers, J., and
Celebi, M. \Comparison of the dynamic parameters
extracted from weak, moderate and strong building
motion", in 1st European Conference of Earthquake
Engineering and Seismology, Geneva, Switzerland
(2006).
30. Michel, C. and Gueguen, P. \Time-frequency analysis
of small frequency variations in civil engineering
122 S. Ale Saheb Fosoul et al./Scientia Iranica, Transactions A: Civil Engineering 28 (2021) 109{123
structures under weak and strong motions using a
reassignment method", Structural Health Monitoring,
9, pp. 159{171 (2010).
31. Mucciarelli, M., Masi, A., Gallipoli, M.R., Harabaglia,
P., Vona, M., Ponzo, F., and Dolce, M. \Analysis of RC
building dynamic response and soil-building resonance
based on data recorded during a damaging earthquake
(Molise, Italy, 2002)", Bulletin of the Seismological
Society of America, 94, pp. 1943{1953 (2004).
32. Calvi, G.M., Pinho, R., and Crowley, H. \State-of-theknowledge
on the period elongation of RC buildings
during strong ground shaking", First European Conference
on Earthquake Engineering and Seismology,
Geneva, Switzerland (2006).
33. Ergun, M. and Ates, S. \Selecting and scaling ground
motion time histories according to Eurocode 8 and
ASCE 7-05", Earthquakes and Structures, 5, pp. 129{
142 (2013).
34. Haselton, C. and Baker, J. \Ground motion intensity
measures for collapse capacity prediction: Choice of
optimal spectral period and e ect of spectral shape",
8th National Conference on Earthquake Engineering,
San Francisco, California (2006).
35. Baker, J.W. and Cornell, C.A. \Which spectral acceleration
are you using?", Earthquake Spectra, 22, pp.
293{312 (2006).
36. Boore, D.M. \Equations for estimating horizontal
response spectra and peak acceleration from western
North American earthquakes: a summary of recent
work", Seismological Research Letters, 76, pp. 368{369
(2005).
37. Haselton, C.B. \Assessing seismic collapse safety of
modern reinforced concrete moment frame buildings",
Department of Civil and Environmental Engineering,
Stanford University, PhD Dissertation (2006).
38. Baker, J.W. and Cornell, C.A., Vector-Valued Ground
Motion Intensity Measures for Probabilistic Seismic
Demand Analysis, The John A. Blume Earthquake
Engineering Center, Stanford University (2007).
39. Abrahamson, N. and Silva, W. \Empirical response
spectral attenuation relations for shallow crustal earthquakes",
Seismological Research Letters, 68, pp. 94{
127 (1997).
40. PEER, Strong Ground Motion Database. Available:
http://peer.berkeley.edu/nga
41. ACI Committee, Building Code Requirements for
Structural Concrete and Commentary (ACI 318M-05):
An ACI Standard (2005).
42. Altoontash, A. \Simulation and damage models for
performance assessment of reinforced concrete beamcolumn
joints", Department of Civil and Environmental
Engineering, Stanford University, PhD Dissertation
(2004).
43. Ibarra, L.F. and Krawinkler, H., Global Collapse
of Frame Structures Under Seismic Excitations, The
John A. Blume Earthquake Engineering Center, Stanford
University (2005).
44. OpenSees, Open System for Earthquake Engineering
Simulation, Available: http://opensees.berkeley.edu/
45. Vamvatsikos, D. and Cornell, C.A. \Incremental dynamic
analysis", Earthquake Engineering & Structural
Dynamics, 31, pp. 491{514 (2002).
46. Bazzurro, P. and Cornell, C.A. \Disaggregation of
seismic hazard", Bulletin of the Seismological Society
of America, 89, pp. 501{520 (1999).
47. USGS, PSHA Disaggregation, Available: https:// geohazards.
usgs.gov/deaggint/2008/
48. FEMA-273: NEHRP Guidelines for the Seismic Rehabilitation
of Buildings, Federal Emergency Management
Agency (1997).
49. Jayaram, N., Baker, J.W., Okano, H., Ishida, H.,
McCann M.W., and Mihara, Y. \Correlation of response
spectral values in Japanese ground motions",
Earthquake and Structures, 2, pp. 357{376 (2011).
50. Haselton, C.B., Liel, A.B., Dean, B.S., Chou, J.H., and
Deierlein, G.G. \Seismic collapse safety and behavior
of modern reinforced concrete moment frame buildings",
ASCE 2007 Structures Congress: New Horizons
Better Practices, Long Beach, California (2007).
51. Zareian, F., Krawinkler, H., Ibarra, L., and Lignos,
D. \Disaggregation of seismic hazard", The Structural
Design of Tall and Special Buildings, 19, pp. 167{181
(2009).
52. Baker, J.W. and Cornell, C.A., Uncertainty Speci-
cation and Propagation for Loss Estimation Using
FOSM Method, Paci c Earthquake Engineering Research
Center, College of Engineering, University of
California (2003).
Volume 28, Issue 1
Transactions on Civil Engineering (A)
January and February 2021
Pages 109-123
  • Receive Date: 06 August 2018
  • Revise Date: 07 April 2019
  • Accept Date: 21 December 2019