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Case study of seismic performance assessment of irregular RC buildings: hospital structure of Avezzano (L’Aquila, Italy)

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Abstract

Most published studies on inelastic earthquake response of non-symmetric buildings are based on simplified inelastic, highly idealized models, while general conclusions regarding the inelastic torsional response of multistory building are still lacking. This paper aims to provide a useful contribution in the study of the torsional response of real irregular buildings. To this aim, the manuscript reports the comprehensive study on the seismic vulnerability of an irregular RC building: the hospital building of Avezzano (L’Aquila Italy). For this multi-story building, which is irregular in both plan and elevation, the application of nonlinear static evaluation procedures is by no means straightforward. The study proposes a nonlinear static procedure based on pushover analysis under the multimodal distribution of lateral loads and a capacity spectrum method. This pushover procedure accounts for mass distribution, higher modes contribution and mode-shapes correlation. Furthermore, due to its non-iterative feature, it avoids problems of non-convergence and multiple solutions of the conventional capacity spectrum method. Applied to a real case study, the procedure is used to investigate, in a 3D plan irregular building, the sensitivity of torsional inelastic response to lateral force distribution, higher modes contribution, accidental eccentricity and controlled point for monitoring the target displacement.

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References

  • CEN European standard EN1998-1 (2004), Eurocode 8: Design of Structures for Earthquake Resistance, Part 1: General Rules, Seismic Action and Rules for Buildings, European Committee for Standardisation, Brussels.

    Google Scholar 

  • Chopra AK and Goel RK (2004), “A Modal Pushover Analysis Procedure to Estimate Seismic Demands for Unsymmetric-plan Buildings,” Earthquake Engineering & Structural Dynamics, 33: 903–927.

    Article  Google Scholar 

  • Chopra AK, Goel RK and Chintanapakdee C (2004), “Evaluation of a Modified MPA Procedure Assuming Higher Modes as Elastic to Estimate Seismic Demands,” Earthquake Spectra, 20(3): 757–778.

    Article  Google Scholar 

  • CSI Computer & Structures Inc. SAP2000 (2006), Linear and Nonlinear Static and Dynamic Analysis of Three-dimensional Structures, Berkeley (CA).

    Google Scholar 

  • De Stefano M and Pintucchi B (2004), “Seismic Analysis of Eccentric Building Structures by Means of a Refined One-story Model,” Proceedings of the 13th World Conference of Earthquake Engineering, Vancouver, Canada.

    Google Scholar 

  • Fajfar P (1999), “Capacity Spectrum Method Based on Inelastic Demand Spectra,” Earthquake Engineering & Structural Dynamics, 28: 979–993.

    Article  Google Scholar 

  • Fajfar P, Marušić D and Peruš I (2005), “The Extension of the N2 Method to Asymmetric Buildings,” Proceedings of the 4th European Workshop on the Seismic Behavior of Irregular and Complex Structures, Thessaloniki, Greece.

    Google Scholar 

  • Fardis MN (1994), “Analysis and Design of Reinforced Concrete Buildings According to Eurocode 2 and 8, Configuration 3, 5 and 6,” Reports on Prenormative Research in Support of Eurocode 8.

    Google Scholar 

  • FEMA 356 (2000), Prestandard and Commentary for the Seismic Rehabilitation of Buildings, prepared by the American Society of Civil Engineers for the Federal Emergency Management Agency. Washington, D.C.

    Google Scholar 

  • Ferracuti B, Savoia M and Pinho R (2009), “3D Pushover Analysis for Evaluating Torsional Effect of RC Structures,” Proceedings of the 13th Conference ANIDIS L’Ingegneria Sismica in Italia, Bologna, Italy.

    Google Scholar 

  • Ferraioli, M (2010), “Inelastic Torsional Response of an Asymmetric-plan Hospital Building in Italy,” COST ACTION C26: Urban Habitat Constructions under Catastrophic Events, Proceedings of the Final Conference, pp. 835–840, Napoli.

    Google Scholar 

  • Ferraioli M, Abruzzese D, Miccoli L and Vari A (2010a), “Structural Identification from Environmental Vibration Testing of an Asymmetric-plan Hospital Building in Italy,” COST ACTION C26: Urban Habitat Constructions under Catastrophic Events, Proceedings of the Final Conference, Napoli, pp. 981–986.

    Google Scholar 

  • Ferraioli M, Avossa AM and Ferri A (2010b), “Pushover Procedures for Inelastic Torsion Analysis of Buildings,” Proceedings of the 14th European Conference on Earthquake Engineering, Ohrid, Macedonia.

    Google Scholar 

  • Ghersi A, Marino E and Rossi PP (2000), “Inelastic Response of Multi-story Asymmetric Buildings,” Proceedings of the 12th World Conference on Earthquake Engineering, Auckland. Italian Ministerial Decree N.1684, November 25th, 1962 (in Italian).

    Google Scholar 

  • Kilar V and Fajfar P (2001), “On the Applicability of Pushover Analysis to the Seismic Performance Evaluation of Asymmetric Buildings,” European Earthquake Engineering, 15: 20–31.

    Google Scholar 

  • Lucchini A, Monti G and Kunnath S (2008), “Investigation on the Inelastic Torsional Response of Asymmetric-plan Buildings,” Fifth European Workshop on the Seismic Behavior of Irregular and Complex Structures, Catania, Italy.

    Google Scholar 

  • Mainstone RJ (1974), Supplementary Note on the Stiffness and Strength of Infilled Frames, Building Research Station, CP 13/74, Building Research Establishment, UK.

    Google Scholar 

  • Mander JB, Priestley MJN and Park R (1988), “Theoretical Stress-strain Model for Confined Concrete,” Journal of Structural Engineering, 114(8): 1804–1826.

    Article  Google Scholar 

  • NTC (2008), D.M. Infrastrutture Trasporti 14 gennaio 2008, Norme Tecniche per le Costruzioni (in Italian).

    Google Scholar 

  • Peruš I and Fajfar P (2005), “On the Inelastic Torsional Response of Single-story Structures under Biaxial Excitation,” Earthquake Engineering & Structural Dynamics, 34: 931–941.

    Article  Google Scholar 

  • Stathopoulos KG and Anagnostopoulos SA (2005), “Inelastic Torsion of Multi-story Buildings under Earthquake Excitations,” Earthquake Engineering & Structural Dynamics, 34: 1449–1465.

    Article  Google Scholar 

  • Vidic T, Fajfar P and Fischinger M (1994), “Consistent Inelastic Design Spectra: Strength and Displacement,” Earthquake Engineering & Structural Dynamics, 23: 502–521.

    Article  Google Scholar 

Download references

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Correspondence to Massimiliano Ferraioli.

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Ferraioli, M. Case study of seismic performance assessment of irregular RC buildings: hospital structure of Avezzano (L’Aquila, Italy). Earthq. Eng. Eng. Vib. 14, 141–156 (2015). https://doi.org/10.1007/s11803-015-0012-7

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  • DOI: https://doi.org/10.1007/s11803-015-0012-7

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