Performance-based seismic design of a continuous bridge

Performance-based design (PBD) provides an insight into the expected performance of a designed structure during an earthquake. Over recent decades, considerable development on the PBD of buildings has taken place, but studies regarding the PBD of bridges are limited. This paper examines the estimated performance of a three-span continuous bridge designed using a codal procedure for the site-specific design response spectrum. A three-dimensional model of the bridge was developed using non-linear modelling of the piers. The response of the bridge was estimated using non-linear static and dynamic procedures. The effect of loading patterns and the accuracy of different pushover analysis methods were examined, and Fema-356 performance levels compared with limit states defined by Kowalsky. The performance of the bridge was studied for different values of the response reduction factor used in the design. The paper also discusses the advantages of PBD and pushover analysis.

[1]  Anil K. Chopra,et al.  A modal pushover analysis procedure for estimating seismic demands for buildings , 2002 .

[2]  Anil K. Chopra,et al.  Evaluation of a Modified MPA Procedure Assuming Higher Modes as Elastic to Estimate Seismic Demands , 2004 .

[3]  Donald E. Grierson,et al.  Push-over analysis for performance-based seismic design , 2002 .

[4]  Gian Michele Calvi,et al.  Displacement-based seismic design of multi-degree-of-freedom bridge structures , 1995 .

[5]  Theodoros Tzaveas,et al.  Pushover Analysis of Inelastic Seismic Behavior of Greveniotikos Bridge , 2002 .

[6]  Mervyn J. Kowalsky,et al.  A displacement‐based approach for the seismic design of continuous concrete bridges , 2002 .

[7]  Hassan Sedarat,et al.  SR5 Lake Washington Ship Canal Bridge pushover analysis , 1999 .

[8]  Yi-Lung Mo,et al.  Evaluation of As-Built, Retrofitted, and Repaired Shear-Critical Hollow Bridge Columns under Earthquake-Type Loading , 2005 .

[9]  Seung-Eock Kim,et al.  Performance based design of steel arch bridges using practical inelastic nonlinear analysis , 2003 .

[10]  Mervyn J. Kowalsky,et al.  DEFORMATION LIMIT STATES FOR CIRCULAR REINFORCED CONCRETE BRIDGE COLUMNS , 2000 .

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

[12]  Jamshid Mohammadi,et al.  Performance-Based Design Approach in Seismic Analysis of Bridges , 2001 .

[13]  Enrique Hernández-Montes,et al.  AN ENERGY-BASED FORMULATION FOR FIRST-AND MULTIPLE-MODE NONLINEAR STATIC (PUSHOVER) ANALYSES , 2004 .

[14]  Sashi K. Kunnath,et al.  Adaptive Spectra-Based Pushover Procedure for Seismic Evaluation of Structures , 2000 .