| Author(s): |
S K. Kunnath; A El-Bahy; A W. Taylor; William C. Stone; |
| Title: |
Cumulative Seismic Damage of Reinforced Concrete Bridge Piers |
| Published: |
October 01, 1997 |
| Abstract: |
A comprehensive experimental study was undertaken in this research effort to investigate cumulative damage in reinforced concrete circular bridge piers. Twelve identical quarter-scale bridge columns, designed and fabricated in accordance with current AASHTO specifications, were tested in two phases. Phase 1 testing consisted of benchmark tests to establish the monotonic force-deformation envelope, the energy capacity under standard cyclic loads, and constant amplitude tests to determine the low-cycle fatigue characteristics of the bridge column. Phase 2 testing was composed of a series of analytically predicted displacement amplitudes representing the bridge response to earthquakes. The results of Phase 1 testing provided information on the fatigue behavior of reinforced concrete and Phase 2 provided data on the effects of load path on cumulative damage. |
| Citation: |
NIST Interagency/Internal Report (NISTIR) - 6075 |
| Keywords: |
piers; bridges (structures); reinforced concretes; damage; columns; cyclic load; ductility; energy capacity; experimental testing; low cycle fatigue; seismic damage |
| Research Areas: |
Building and Fire Research |
| PDF version: |
 Click here to retrieve PDF version of paper (10MB) |
