Performance of Earthquake-Damaged Reinforced Concrete Bridges with Repaired Columns – Phase II
-
2021-12-01
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:University of Nebraska. Mid-America Transportation Center ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. Federal Highway Administration
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Edition:Final Report Jan 2020 – Dec 2021
-
Corporate Publisher:
-
Abstract:This report summarizes the second phase of an investigation on the performance of earthquake-damaged reinforced concrete bridges with repaired columns. In Phase II, a study was conducted to optimize the level of (pre-earthquake) retrofit of RC bridge columns that can be rapidly repaired (i.e., in a 3-day period) in the event of an earthquake. Retrofit and repair of earthquake-damaged reinforced concrete (RC) bridge columns have been studied extensively in the past several years; however, no studies have been conducted on the optimization process on the combined levels of retrofit and rapid repair. In this study, a framework is presented to optimize the combined levels of retrofit and rapid repair needed to maintain the level of serviceability of a bridge effected by an earthquake. Numerical simulation was used to model the response of two RC bridge columns with different reinforcement details and retrofitted with different methods that were reported in the literature. Incremental dynamic analysis (IDA) was used to determine the seismic response of a prototype bridge system that included the retrofitted RC columns to determine how different methods and levels of column retrofit affect the system-level response of the bridge structure and its ability to be repaired after an earthquake. Knowledge of the system-level performance can, in turn, be used to manage the levels of retrofit and repair to help ensure the survival of the infrastructure while reducing initial costs.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: