Paper Information

Title: 

RETROFITTING AND SEISMIC PERFORMANCE EVALUATION OF PARTIALLY CONCRETE-FILLED STEEL BRIDGE PIERS

Type: PAPER
Author(s): H.P. MAMAGHANI IRAJ*
 
 *DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF TORONTO, 35 ST. GEORGE STREET, TORONTO, ONTARIO M5S 1A4, CANADA
 
Name of Seminar: CONFERENCE ON STRENGTHENING AND RETROFITTING OF STRUCTURES
Type of Seminar:  CONFERENCE
Sponsor:  amirkabir university
Date:  2002Volume 1
 
 
Abstract: 

1. INTRODUCTION: CONCRETE-FILLED STEEL BOX COLUMNS ARE WIDELY USED IN BRIDGE PIER CONSTRUCTION IN SEISMIC AREAS DUE TO THEIR EXCELLENT SEISMIC RESISTING CHARACTERISTICS SUCH AS HIGH DUCTILITY, IMPROVED STRENGTH AND ENERGY ABSORPTION CAPACITY. A SOUND UNDERSTANDING OF THE INELASTIC BEHAVIOUR OF SUCH COLUMNS IS IMPORTANT IN DEVELOPING A RATIONAL SEISMIC DESIGN METHODOLOGY FOR CONCRETE-FILLED STEEL BRIDGE PIERS. FOR THIS PURPOSE, A SEISMIC DESIGN PROCEDURE FOR ULTIMATE STRENGTH AND DUCTILITY EVALUATION OF PARTIALLY CONCRETE-FILLED THIN-WALLED STEEL BRIDGE PIERS IS PRESENTED. IN THIS PROCEDURE, THE ULTIMATE STRENGTH AND DUCTILITY OF SUCH BRIDGE PIERS ARE DETERMINED BY PERFORMING A PUSHOVER ANALYSIS TO COMPUTE THE LOAD-DISPLACEMENT RELATION OF THE PIER UNDER THE COMBINED ACTION OF CONSTANT AXIAL LOAD AND INCREASING LATERAL DISPLACEMENT.

 
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