Structural Drift Corresponding to the Critical Excitations

Subject Areas : Structural Engineering

Mohammad Hosein Soltani ¹ , Seyed Hooman Ghasemi ²

1 - Department of Civil Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
2 - Department of Civil Engineering, Auburn University, USA

Received: 2020-02-03 Accepted : 2020-02-03 Published : 2020-12-01

Keywords: reliability index, Critical Excitation, Random Variables and Uncertainty, Power Spectral Density, Serviceability Displacement,

Abstract :

While the existing structures, even recently constructed ones are subjected to the critical earthquakes, the catastrophic devastations are expected to occur. Therefore, at least for several important structures such as power plants, infrastructure, and buildings, there is a need to consider the critical excitation analysis. One of the important criteria in the seismic design of the structures using the criteria in critical excitation is to control the maximum amount of structural displacement. However, the required characteristics of the analysis and design of the structures are generally random variables and have many uncertainties. Therefore, the probability-based analysis should be accomplished to determine the most probable structural responses. The main objective of this research is to investigate the reliability level of buildings subjected to the critical excitations for concerning the steel structures. In due course, the wide range of the SDOF structures is investigated subjected to real ground motions of the critical excitations. Eventually, the reliability index for structures is given in terms were divulged.

References:

 [1] Andrzej, S Nowak, K.R Collins, “Reliability of
structures”, Mc-Grow Hill, (2000).
[2] Cornell, A. C.; “A probability-based structural code”,
ACI Journal, Vol. 66, pp. 975-985, (1969).
[3] Hasofer, A. M. and Lind, N.C.; “Exact and invariant
first-order reliability format”, Journal of the
Engineering Mechanics Division, ASCE, Vol. 100,
pp. 111-121, (1974).
[4] Rackwitz, R., Fiessler, B.; “Structural reliability under
combined load sequences”, Computers and Structures,
Vol. 9, pp. 489-494, (1978).

 [5] M.DiSciuva, D Lomario, “A Comparison Monte Carlo
and FORMs in calculating the reliability of a
composite structure”, Composite Structures, Vol.
59(1), pp. 155-162, (2003).
[6] Jahani, E, Shayanfar, M.A, and Barkhordari, M.A, “A
new adaptive importance sampling Monte Carlo
method for structural reliability,” KSCE Journal of
Civil Engineering, Vol. 17, pp. 210-215, (2013).
[7] Iranian seismic code of practice, Standard No.2800,
(1384).
[8] Uniform Building code, (1994).
[9] Galvi G.M, Kingsley G.R, “Displacement-based
design of Multi-degree of freedom bridge structures”,
Earthquake Engineering and Structural Dynamics,
Vol. 24, pp. 1247-1266, (1995).
[10] Priestley M.J.N, “Displacement-based approaches to
rational limit states design of new structures”,
Keynote Address in the 11th European Conference on
Earthquake Engineering, Paris, France, (1998).
[11] Sullivan T, Galvi G.M, Priestley M.J.N, Kowalsky
M, “The limitation and performances of different
displacement-based design methods”, Journal of
Earthquake Engineering, Vol. 7, No. Special Issue 1,
pp. 201-241, (2003).
[12] Takewaki I, “Nonstationary random critical
excitation for acceleration response”, Journal of
Engineering Mechanics, Vol. 127, pp. 544-556,
(2001a).[13] Drenick R.F, “Model-free design of a
seismic structures”, Journal of the Engineering
Mechanics Division, Vol. 96, Issue 4, pp. 483-493,
(1970).
[14] Takewaki I, (2001b), “A new method for nonstationary random critical excitation”, Journal of
Earthquake Engineering and Structural Dynamics,
Vol. 30, pp. 519-535, (2001a).
[15] Takewaki I, (2001c), “Nonstationary random critical
excitation for non proportionally damped structural
systems”, Comput. Methods Appl. Mech. Engrg, Vol.
190, Issue 31, pp. 3927-3943.
[16] Ghasemi, S.H., and Ashtari, P., (2014),”
Combinatorial Continuous Non-Stationary Critical
Excitation in M.D.O.F Structures Using Modified
Envelope Functions”, Journal of Earthquakes and
Structures, Vol. 7, No. 6, pp.859-908.
[17] Ashtari, P. and Ghasemi, S.H., (2013),” Seismic
Design of Structures Using Modified Nonstationary
Critical Excitation”, Journal of Earthquakes and
Structures, Vol. 4, No. 4, pp.383- 396.
[18] Ghasemi, S.H. and Nowak, A.S., (2018), “Reliability
Analysis of Circular Tunnels with Consideration of
the Strength Limit State”. Geomechanics Engineering,
Vo. 15, No 3, pp. 879-888.
[19] Ghasemi, S.H., and Nowak, A.S., (2017a), “Target
Reliability for Bridges with Consideration of Ultimate
Limit State”, Engineering Structures, Vol. 152, pp.
226-237.
[20] Ghasemi, S.H. and Nowak, A.S., (2017b),
“Reliability Index for Non-Normal Distributions of
Limit State Functions”. Structural Engineering and
Mechanics, Vol. 62, No. 3, pp. 365-372.
[21] Ghasemi, S.H. Nowak, A.S., and Ashtari, P., (2013),
“Estimation of the Resonance-Response Factor
Regarding the Critical Excitation Methods”, 11th
International Conference on Structural Safety &
Reliability, ICOSSAR 2013, New York, USA.
[22] Soltani, M.H., Ghasemi, S.H., Soltani, A., Lee, J.Y.,
Nowak, A.S., Jalilkhani, M., (2020),” State-of-the-art
reliability analysis of structural drift control
corresponding to the critical excitations”, Journal of
Earthquake Engineering, in press.
[23] Dorri, F., Ghasemi, S.H., and Nowak, A.S., (2019),
”Developing a Lateral Load Pattern for Pushover
Analysis of EBF System”, Reliability Engineering
and Resilience Journal, Vol. 1, No. 1, pp 42-54.<br style=" font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -web