Chapter
Apr 26, 2012
Drift Demand Model for Bridge Columns Considering Shear-Flexure Interaction
Authors: J. Zhang [email protected], S. -Y. Xu [email protected], and Y. Tang [email protected]Author Affiliations
Publication: Structures Congress 2010: 19th Analysis and Computation Specialty Conference
Abstract
This paper develops a simple yet reliable demand model for estimating the inelastic displacement and ductility of RC bridge columns considering their shear-flexure interactive behavior. Utilizing a coupled hysteretic model to realistically simulate the nonlinear behavior of columns and the rigorous dimensional analysis, the study revealed strong correlation between the normalized inelastic displacement and the dimensionless structure-to-pulse frequency, a proposed dimensionless nonlinearity index as well as the aspect ratio of columns. Two regressive equations are proposed and validated against the simulation results. The inelastic displacement of columns can therefore be estimated directly from structural and ground motion characteristics using the proposed model.
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Copyright
© 2010 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Bridge columns
- Bridge components
- Bridge engineering
- Bridges
- Bridges (by material)
- Concrete
- Concrete bridges
- Continuum mechanics
- Displacement (mechanics)
- Drift (structural)
- Elasticity and Inelasticity
- Engineering materials (by type)
- Engineering mechanics
- Flexural strength
- Material mechanics
- Material properties
- Materials engineering
- Mechanical properties
- Reinforced concrete
- Solid mechanics
- Strength of materials
- Structural behavior
- Structural engineering
- Structural mechanics
Authors
Affiliations
Assistant Professor, Department of Civil and Environmental Engineering, University of California, Los Angeles (UCLA), CA 90095. E-mail: [email protected]
Graduate student, Researcher, Department of Civil and Environmental Engineering, UCLA, CA 90095. E-mail: [email protected]
Graduate student, Researcher, Department of Civil and Environmental Engineering, UCLA, CA 90095. E-mail: [email protected]
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