SHEAR STRENGTH AND DEFORMABILITY OF RC BRIDGE COLUMNS SUBJECTED TO INELASTIC CYCLIC DISPLACEMENTS
Many reinforced concrete bridges designed prior to the establishment of modern fundamentals of earthquake resistant design are vulnerable to damage and collapse in earthquakes. Failures have often been associated with inadequate column shear strength. Fundamental concepts of shear strength are discussed. Column damage to California bridges in previous earthquakes is reviewed. Bounds on the shear strength of damaged bridge columns are calculated using available data on construction details and failure mode. Research on column shear strength is reviewed. A simplified expression for the assessment of the concrete contribution to shear strength is developed for use in evaluation of existing bridge structures. An approach to the evaluation of column shear strength adequacy is discussed.
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Corporate Authors:
University of California, Berkeley
Earthquake Engineering Research Center
Berkeley, CA United States 94720California Department of Transportation
1120 N Street
Sacramento, CA United States 95814 -
Authors:
- Ascheim, M
- Moehle, J P
- Publication Date: 1992-3
Language
- English
Media Info
- Features: Appendices; Figures; References; Tables;
- Pagination: 114 p.
Subject/Index Terms
- TRT Terms: Columns; Defects; Earthquake resistant design; Failure; Mathematical analysis; Modulus of deformation; Reinforced concrete bridges; Shear strength; Structures
- Uncontrolled Terms: Structural damage
- Old TRIS Terms: Failure mode
- Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00722090
- Record Type: Publication
- Report/Paper Numbers: UCB/EERC-92/04, Final Report
- Files: TRIS, STATEDOT
- Created Date: May 2 1996 12:00AM