Seismic Behavior of Reinforced Concrete Bridge Columns at Sub-Freezing Temperatures
INTRODUCTION
1.1 Problem description and scope of the research
Seismic design of reinforced concrete bridges is generally based on the principles of capacity design, where a strength hierarchy is established in the bridge to ensure that damage is controllable, and occurs only where the designer intends (Priestley et al., 1996). Special importance is then placed on the ductility of the structural members selected to develop plastic hinges, which should be specially detailed in order to sustain large inelastic deformations. All other members should be design to remain elastic while resisting the overstrength moments coming from adjacent members.
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