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Evaluation of Seismic Vulnerability of Existing Reinforced Concrete Structure by Non-Iterative Spectral Method Using Pushover Analysis with Interpretation of Fragility Curves by RISK UE

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The prediction of the behavior of an existing structure against an earthquake, and prior knowledge of the level of damage can endure seem decisive, especially when it comes to listed buildings of vital importance and public utility for the population such as hospitals. They are called to ensure the continuity of the functionality of their services with minor or no damage, especially in case of calamity or serious earthquake disaster genre. The present work consists to assess the seismic vulnerability of a clinic in Agadir, Morocco city, reputed for its high seismicity, using the non-iterative spectral method. Firstly, we will use a Pushover analysis by modeling the structure in the SAP 2000. Then, the capacity curve of the substructure of the building, thus obtained, will be transformed to ADRS format (Acceleration, Displacement, Response Spectral), then it will be overlaid with the inelastic response spectrum of the considered site, which converted to AD Format (Acceleration Displacement), according to the RPS 2011 (revised) in order to determine the performance point. Finally, we will proceed to the interpretation of fragility curves according RISK UE, to deduce the vulnerability.
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Non-Iterative Method; Pushover Analysis; Capacity Curve; Inelastic Response Spectrum; Performance Point; Fragility Curves; Vulnerability

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RPS 2000 (version révisée 2011), Règlement de construction parasismique marocain. Ministère de l’habitat et l’aménagement de l’espace, Maroc.

RISKUE: An advanced approach to earthquake risk scenarios with applications to different European towns Contract: EVK4-CT-2000-00014, September 2003.

Driouich, M., Gueraoui, K., Haddad, Y.M., Sammouda, M., El Hammoumi, A., Kerroum, M., Taibi, M., Fassi Fehri, O., Numerical and theoretical modelling of unsteady flows for incompressible fluid in rigid conducts. Application to molten polymers flow, (2010) International Review on Modelling and Simulations (IREMOS), 3 (6), pp. 1317-1323.

Bendada, A., El Hammoumi, A., Gueraoui, K., Sammouda, M., IbenBrahim, A., El Mouraouah, A., On the vulnerability of costal buildings in the Gulf of Cadiz under the tsunami forces. Contemporary Engineering Sciences, Vol. 9, 2016, no. 11, 497 - 511

« Normes d’Agadir 1960 » décret n°2-60-893 Maroc

RPS2000, Règlement parasismique marocain Ministère de l’habitat et l’aménagement de l’espace, Maroc.

Victor Davidovici 2003, rapport de mission suite au séisme de Boumerdes, 21 Mai 2003 (Algérie).

Freeman SA, Nicoletti JP, Tyrell JV. Evaluations of existing buildings for seismic risk – A case study of Puget Sound Naval Shipyard, Bremerton, Washington. In: Proceedings of the 1st U.S. National Conference on Earthquake Engineering, Berkeley: EERI, 1975:113-122.

Saiidi M, Sozen MA. Simple nonlinear seismic analysis of R/C structures. Journal of Structural Engineering, ASCE 1981; 107: 937-52.

Fajfar P, Fischinger M. Non-linear seismic analysis of RC buildings: Implications of a case study. European Earthquake Engineering 1987; 1(1): 31-43.

ATC–Seismic Evaluation and Retrofit of Concrete Buildings, Volume 1, ATC-40 Report, Applied Technology Council, Redwood City, California, 1996.

Federal Emergency Management Agency, NEHRP recommended Provisions for Seismic Regulations for New Buildings and Other Structures: FEMA273, 2003.

Eurocode 8. Design of structures for earthquake resistance, Ed. Eyrolles (2004).

P. Fajfar, Capacity spectrum method based on inelastic demand spectra., Earthquake Engineering and Structural Dynamics, Vol. 28, pp. 979-993, 1999. Management Agency, 2001.;2-1

Chopra A.K., Goel R.K. A modal pushover analysis procedure for estimating seismic demands for buildings. Earthquake Engineering and Structural Dynamics2002; 31:561–582.

P. Fajfar, A nonlinear analysis method for performance based seismic design. Earthquake Spectra, 16 (2000) 573-592.

P. Fajfar, Strucutural analysis in earthquake engineering. A breakthrough of simplified non-linear methods, 12th European Conference on Earthquake Engineering, Paper Reference 843.

Y. Mensari, M.S. Nouaouria&M. Guenfou Laboratoire de Génie Civil et d'Hydraulique, Université de Guelma, Algérie.

ATC (1985), Earthquake damage evaluating data for California, Applied Technology Council, ATC-13 Redwood City, CA.

La Réglementation Parasismique au Maroc : RPS 2000, version 2011, Ministère de l'Habitat, de l'Urbanisme et de l’Aménagement de l’Espace, Maroc.

BAEL 83, Règles techniques de conception et de calcul des ouvrages et constructions en béton armé suivant la méthode des Etats Limites, Éd.Eyrolles (83).

SAP2000, Integrated Finite Element Analysis, SAP2000 Web tutorial 1: Detailed tutorial including pushover analysis. Computer and structures Inc, Berkeley, California, 1998.

SAP2000, Integrated Finite Element Analysis, SAP2000 Web tutorial 2: Quick pushover analysis tutorial. Computer and structures Inc, Berkeley, California, 1998.

Sammouda, M., Hammoumi, A.E., Gueraoui, K., Kerroum, M., Ghouli, A., Cherraj, M., Brahim, A.I., El Mouraouah, Z., Kasmi, M., Birouk, A., Application of the noniterative spectral method to nonlinear systems for structural seismic design:A case study, (2010) International Review of Mechanical Engineering (IREME), 4 (3), pp. 364-369.

Youssef BELMOUDEN, Analyse spectrale non itérative des oscillateurs simples sous l’action des tremblements de terre. Bulletin de l’Institut Scientifique, Rabat, section Sciences de la Terre, 2004, n°26, 1-10.

Newmark N. M. and Hall W.J, 1982, Earthquake Spectra And Design, Earthquake Engineering Research Institute, Berkeley CA.

HAZUS MH MR4 Earthquake Model Technical Manual FEMA 2003.

Sammouda, M., Gueraoui, K., Driouich, M., El Hammoumi, A., Brahim, A.I., The variable porosity effect on the natural convection in a non-darcy porous media, (2011) International Review on Modelling and Simulations (IREMOS), 4 (5), pp. 2701-2707.

Gueraoui, K., Hammoumi, A., Zeggwagh, G. (1996), Ecoulementspulsés de fluides inélastiques en conduites déformables poreuses et anisotropes, C.R. Acad. Sci., Paris, 323, série B, pp. 825-832.

Ghouli, A., Gueraoui, K., Walid, M., Aberdane, I., Hammoumi, A.E., Kerroum, M., Zeggwagh, G., Haddad, Y.M., Numerical study of pollutant propagation process in homogeneous porous unsaturated media, (2009) International Review of Mechanical Engineering (IREME), 3 (3), pp. 358-361.

Tricha, M., Gueraoui, K., Zeggwagh, G., Mzerd, A., New Numerical and Theoretical Approaches to Study the Blood Flows at Microcirculation Level, (2014) International Review of Mechanical Engineering (IREME), 8 (6), pp. 1043-1046.

Sammouda, M., Gueraoui, K., Driouich, M., El-Hammoumi, A., Iben Brahim, A., Non-Darcy natural convection heat transfer along a vertical cylinder filled by a porous media with variable porosity, (2012) International Review of Mechanical Engineering (IREME), 6 (4), pp. 698-704.

Sammouda, M., Gueraoui, K., Driouich, M., Ghouli, A., Dhiri, A., Double Diffusive Natural Convection in Non-Darcy Porous Media with Non-Uniform Porosity, (2013) International Review of Mechanical Engineering (IREME), 7 (6), pp. 1021-1030.

R. Chammami, M. Taibi, M. Hami, M. Kerroum, K. Gueraoui and G. Zeggwagh, Influence de la nature de la paroi sur un modèle d'écoulements pulsés de fluides diphasiques. Application à la microcirculation, Influence of the kind of duct on two-fluid pulsatile flows model. Application to the microcirculation, Houille Blanche, (2001).

M. Taibi, R. Chammami, M. Kerroum, K. Gueraoui, A. El Hammoumi and G. Zeggwagh, Modélisations des écoulements pulsés à deux phases, en conduites déformables ou rigides, Pulsating flow of two phases in deformable or rigide tubes, ITBM-RBM, (2002).

Aberdane, I., Gueraoui, K., Taibi, M., Ghouli, A., El-Hammoumi, A., Cherraj, M., Kerroum, M., Walid, M., Fihri, O.F., Haddad, Y.M., Two-dimensional theoretical and numerical approach of pollutant transport in the lowest layers of the atmosphere, (2009) International Review of Mechanical Engineering (IREME), 3 (4), pp. 494-502.

El Khaoudi, F., Gueraoui, K., Driouich, M., Sammouda, M., Numerical and Theoretical Modeling of Natural Convection of Nanofluids in a Vertical Rectangular Cavity, (2014) International Review on Modelling and Simulations (IREMOS), 7 (2), pp. 350-355.


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