Development of Fragility Curves for Confined Masonry Buildings in Lima, Peru

This paper aims at investigating the seismic fragility of confined masonry (CM) structures in Lima, Peru, which can be used to perform earthquake scenarios at urban scale. A database describing the geometric properties (walls density, building area, height) of this type of structure was developed using data from field surveys. This information was complemented with results from experimental tests to compute a large set of capacity curves using a mechanical procedure. These models were tested against a set of ground motion records using the displacement-based earthquake loss assessment (DBELA) procedure, and the structural responses were used to derive fragility functions for four building classes. The resulting fragility curves were convoluted with seismic hazard curves to evaluate the annualized expected loss ratio and annual collapse probability.

[2]  R. B.,et al.  The United Nations , 1947, Nature.

[3]  Matija Gams,et al.  Shaking table study and modelling of seismic behaviour of confined AAC masonry buildings , 2012, Bulletin of Earthquake Engineering.

[4]  H. Tavera,et al.  Source mechanism of earthquakes in Peru , 2001 .

[5]  Jorge Varela-Rivera,et al.  Out-of-plane behaviour of confined masonry walls , 2011 .

[6]  Julian J. Bommer,et al.  A Probabilistic Displacement-based Vulnerability Assessment Procedure for Earthquake Loss Estimation , 2004 .

[7]  Rui Pinho,et al.  Evaluation of analytical methodologies used to derive vulnerability functions , 2014 .

[8]  C. Allin Cornell,et al.  Probabilistic seismic demand analysis of nonlinear structures , 1999 .

[9]  John Douglas,et al.  Recent and future developments in earthquake ground motion estimation , 2016 .

[10]  Paolo Bazzurro,et al.  Exploring Risk-Targeted Hazard Maps for Europe , 2016 .

[11]  Miha Tomaževič,et al.  Verification of seismic resistance of confined masonry buildings , 1997 .

[12]  Sergio M. Alcocer,et al.  RESPONSE ASSESSMENT OF MEXICAN CONFINED MASONRY STRUCTURES THROUGH SHAKING TABLE TESTS , 2002 .

[13]  Kenneth J. Elwood,et al.  Backbone Model for Confined Masonry Walls for Performance-Based Seismic Design , 2009 .

[14]  Nelson Lam,et al.  Displacement-based seismic analysis for out-of-plane bending of unreinforced masonry walls , 2002 .

[15]  S. Lagomarsino,et al.  Macroseismic and mechanical models for the vulnerability and damage assessment of current buildings , 2006 .

[16]  V. Silva,et al.  Modeling the Residential Building Inventory in South America for Seismic Risk Assessment , 2017 .

[17]  Dimitrios Vamvatsikos,et al.  Conditional spectrum‐based ground motion record selection using average spectral acceleration , 2017 .

[18]  Dimitrios Vamvatsikos,et al.  Conditional spectrum based ground motion record selection using average spectral acceleration , 2018 .

[19]  H. Crowley,et al.  Development of a Fragility Model for the Residential Building Stock in South America , 2017 .

[20]  Gian Michele Calvi,et al.  A DISPLACEMENT-BASED APPROACH FOR VULNERABILITY EVALUATION OF CLASSES OF BUILDINGS , 1999 .

[21]  V. Silva,et al.  Extending displacement-based earthquake loss assessment (DBELA) for the computation of fragility curves , 2013 .

[22]  Rui Pinho,et al.  Displacement-Based Earthquake Loss Assessment of Masonry Buildings in Mansehra City, Pakistan , 2010 .

[23]  G. Magenes,et al.  SIMPLIFIED PROCEDURE FOR THE SEISMIC RISK ASSESSMENT OF UNREINFORCED MASONRY BUILDINGS , 2002 .

[24]  Rui Pinho,et al.  Investigation of the characteristics of Portuguese regular moment-frame RC buildings and development of a vulnerability model , 2015, Bulletin of Earthquake Engineering.

[25]  Humberto Varum,et al.  Evaluation of analytical methodologies to derive vulnerability functions , 2012 .

[26]  C. Yepes-Estrada,et al.  PROBABILISTIC SEISMIC RISK ASSESSMENT OF THE RESIDENTIAL BUILDING STOCK IN SOUTH AMERICA , 2016 .

[27]  G. Weatherill,et al.  OpenQuake Engine: An Open Hazard (and Risk) Software for the Global Earthquake Model , 2014 .

[28]  Rui Pinho,et al.  Development of the OpenQuake engine, the Global Earthquake Model’s open-source software for seismic risk assessment , 2014, Natural Hazards.

[29]  F. Yáñez,et al.  BEHAVIOR OF CONFINED MASONRY SHEAR WALLS WITH LARGE OPENINGS , 2002 .

[30]  Mervyn J. Kowalsky,et al.  Displacement-based seismic design of structures , 2007 .

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