Fragility analysis of a highway over-crossing bridge with consideration of soil–structure interactions

Seismic fragility relationships, including the soil–structure interaction (SSI) of a common bridge configuration in central and eastern USA, are derived in this study. Four different modelling methods are adopted to represent abutments and foundations of the bridge, namely, (a) fixed abutments and foundations, (b) lumped springs developed from conventional pile analysis of piles at abutments and foundations, (c) lumped springs developed from three-dimensional finite element (3D FE) analysis of abutments and foundations and (d) 3D FE models. Seismic demand on the bridge components is estimated from inelastic response history analysis of the SSI systems. Finally, fragility curves of the components and bridge system are derived. The four different SSI approaches result in different seismic fragility. The implication of this work is that careful consideration is necessary when selecting an analytical representation of a soil and foundation system to obtain reliable earthquake impact assessment. In addition, it is found that abutment bearings are the most critical components for the studied bridge configuration.

[1]  T. Rossettoa,et al.  Derivation of vulnerability functions for European-type RC structures based on observational data , 2003 .

[2]  James L Noland,et al.  Computer-Aided Structural Engineering (CASE) Project: Decision Logic Table Formulation of ACI (American Concrete Institute) 318-77 Building Code Requirements for Reinforced Concrete for Automated Constraint Processing. Volume 1. , 1986 .

[3]  B. G. Nielson.  Analytical Fragility Curves for Highway Bridges in Moderate Seismic Zones , 2005 .

[4]  John B. Mander,et al.  RESPONSE OF STEEL BRIDGE BEARINGS TO REVERSED CYCLIC LOADING , 1996 .

[5]  Marios K. Chryssanthopoulos,et al.  Probabilistic evaluation of behaviour factors in EC8-designed R/C frames , 2000 .

[6]  J. G. Macgregor,et al.  Variability of Mechanical Properties of Reinforcing Bars , 1985 .

[7]  Scott Michael Olson,et al.  Engineering geologic and geotechnical analysis of paleoseismic shaking using liquefaction effects: field examples , 2005 .

[8]  Amr S. Elnashai,et al.  A framework for multi-site distributed simulation and application to complex structural systems , 2012 .

[9]  Glenn J. Rix,et al.  Ground Motion Amplification of Soils in the Upper Mississippi Embayment , 2005 .

[10]  Fernandez Leon,et al.  Numerical Simulation of Earthquake Ground Motions in the Upper Mississippi Embayment , 2007 .

[11]  D. H. Lee,et al.  Zeus NL - A System for Inelastic Analysis of Structures , 2004 .

[12]  Pedro Arduino,et al.  Estimation of Uncertainty in Geotechnical Properties for Performance-Based Earthquake Engineering , 2002 .

[13]  James G. MacGregor,et al.  STATISTICAL ANALYSIS OF THE COMPRESSIVE STRENGTH OF CONCRETE IN STRUCTURES , 1996 .

[14]  Reginald DesRoches,et al.  Bridge Functionality Relationships for Improved Seismic Risk Assessment of Transportation Networks , 2007 .

[15]  Amr S. Elnashai,et al.  Seismic Analysis of Meloland Road Overcrossing Using Multiplatform Simulation Software Including SSI , 2008 .

[16]  Giampiero Orsini.  A Model for Buildings' Vulnerability Assessment Using the Parameterless Scale of Seismic Intensity (PSI) , 1999 .

[17]  R. Barrón-Corvera.  Spectral evaluation of seismic fragility of structures , 2001 .

[18]  Khalid M. Mosalam,et al.  Seismic Fragility of LRC Frames with and without Masonry Infill Walls , 1997 .

[19]  Reginald DesRoches,et al.  Seismic fragility methodology for highway bridges using a component level approach , 2006 .

[20]  Leon Ru-Liang Wang,et al.  EFFECTIVE COEFFICIENT OF FRICTION OF STEEL BRIDGE BEARINGS , 1983 .

[21]  C. Allin Cornell,et al.  Probabilistic Basis for 2000 SAC Federal Emergency Management Agency Steel Moment Frame Guidelines , 2002 .

[22]  Lymon C. Reese,et al.  Behavior of a Large-Scale Pile Group Subjected to Cyclic Lateral Loading. , 1988 .