Implementation and Validation of the Simple Lateral Mechanism Analysis (SLaMA) for the Seismic Performance Assessment of a Damaged Case Study Building

ABSTRACT The new guidelines for the seismic assessment of existing buildings recently introduced by the New Zealand Society for Earthquake Engineering (NZSEE) recommend the Simple Lateral Mechanism Analysis (SLaMA) as an “analytical” first phase of any other numerically-based analysis. This article illustrates the development of the SLaMA method and its validation with reference to an existing RC building severely damaged during the Christchurch earthquake (2011). The capacity of the lateral resisting systems is assessed from component/subassembly to system level. The comparison of the results with observed damage and with the outcomes of refined numerical analyses confirms the effectiveness of this method.

[1]  Roberto Gentile.  Extension, refinement and validation of the Simple Lateral Mechanism Analysis (SLaMA) for the seismic assessment of RC structures , 2018 .

[2]  Stefano Pampanin,et al.  Repair Costs of Existing RC Buildings Damaged by the L'Aquila Earthquake and Comparison with FEMA P-58 Predictions , 2017 .

[3]  Weng Yuen Kam,et al.  Selective Weakening and Post-Tensioning for the Seismic Retrofit of Non-Ductile RC Frames , 2010 .

[4]  T. Paulay,et al.  Seismic Design of Reinforced Concrete and Masonry Buildings , 1992 .

[5]  A. Carr,et al.  Modelling of shear hinge mechanism in poorly detailed RC beam-column joints , 2003 .

[6]  Ciro Del Vecchio,et al.  Comparison of available shear strength models for non-conforming reinforced concrete columns , 2017 .

[7]  Jack P. Moehle,et al.  Drift Capacity of Reinforced Concrete Columns with Light Transverse Reinforcement , 2005 .

[8]  Stefano Pampanin,et al.  Performance-based Seismic Retrofit Strategy for Existing Reinforced Concrete Frame Systems using FRP composites , 2007 .

[9]  Mjn Priestley.  Displacement-based seismic assessment of existing reinforced concrete buildings , 1996 .

[10]  N. Null.  Seismic Rehabilitation of Existing Buildings , 2007 .

[11]  Stefano Pampanin,et al.  RELEVANCE OF BEAM-COLUMN JOINT DAMAGE AND COLLAPSE IN RC FRAME ASSESSMENT , 2002 .

[12]  Jack P. Moehle,et al.  Axial Capacity Model for Shear-Damaged Columns , 2005 .

[13]  W. Y. Kam,et al.  Seismic performance of reinforced concrete buildings in the 22 February Christchurch (Lyttelton) earthquake , 2011 .

[14]  D. Bolognini,et al.  Performance-Based Seismic Retrofit Strategy for Existing Reinforced Concrete Frame Systems Using Fiber-Reinforced Polymer Composites , 2007 .

[15]  Stefano Pampanin,et al.  Seismic performance of alternative risk-reduction retrofit strategies to support decision making , 2018, Bulletin of Earthquake Engineering.

[16]  Mervyn J. Kowalsky,et al.  Improved Analytical Model for Shear Strength of CircularReinforced Concrete Columns in Seismic Regions , 2000 .

[17]  Gian Michele Calvi,et al.  Shear Strength of Reinforced Concrete Walls Subjected to Cyclic Loading , 2011 .

[18]  Rui Pinho,et al.  Simplified Pushover-Based Earthquake Loss Assessment (SP-BELA) Method for Masonry Buildings , 2008 .

[19]  M. Priestley.  DISPLACEMENT-BASED SEISMIC ASSESSMENT OF REINFORCED CONCRETE BUILDINGS , 1997 .

[20]  J. Mander,et al.  Theoretical stress strain model for confined concrete , 1988 .

[21]  Joseph P. Nicoletti,et al.  Seismic Design and Retrofit of Bridges , 1996 .

[22]  Roberto T. Leon,et al.  Performance of Beam-Column Joints in the 2010-2012 Christchurch Earthquakes , 2014, SP-296: Symposium Honoring James O. Jirsa's Contributions in Structural Concrete: A Time to Reflect.

[23]  R. Park,et al.  A static force-based procedure for the seismic assessment of existing reinforced concrete moment resisting frames , 1997 .

[24]  G. Calvi,et al.  SEISMIC BEHAVIOUR OF R . C . BEAM-COLUMN JOINTS DESIGNED FOR GRAVITY LOADS , 2001 .

[25]  S. Pampanin,et al.  The Simple Lateral Mechanism Analysis (SLaMA) for the seismic performance assessment of a case study building damaged in the 2011 Christchurch earthquake , 2017 .

[26]  Donatello Cardone,et al.  Multiple inelastic mechanisms analysis (MIMA): A simplified method for the estimation of the seismic response of RC frame buildings , 2017 .

[27]  Thomas Paulay.  SOME DESIGN PRINCIPLES RELEVANT TO TORSIONAL PHENOMENA IN DUCTILE BUILDINGS , 2001 .

[28]  Mervyn J. Kowalsky,et al.  Direct displacement-based seismic design of concrete buildings , 2000 .

[29]  Luca Landi,et al.  A Procedure for the Displacement-Based Seismic Assessment of Infilled RC Frames , 2016 .

[30]  Stefano Pampanin,et al.  Seismic response of gravity-load designed frame systems with masonry infills , 2004 .

[31]  Marco Di Ludovico,et al.  Reconstruction process of damaged residential buildings outside historical centres after the L’Aquila earthquake: part I—"light damage" reconstruction , 2017, Bulletin of Earthquake Engineering.

[32]  A. Prota,et al.  Experimental Investigation of Exterior RC Beam-Column Joints Retrofitted with FRP Systems , 2014 .

[33]  Marc O. Eberhard,et al.  Practical performance model for bar buckling , 2005 .

[34]  Ciro Del Vecchio,et al.  Modelling beam-column joints and FRP strengthening in the seismic performance assessment of RC existing frames , 2016 .

[35]  M. J. Nigel Priestley,et al.  Towards a Capacity-Design Assessment Procedure for Reinforced Concrete Frames , 1991 .