United States Department of Transportation
i
Numerical Simulation of CFRP-Repaired Reinforced Concrete Columns
-
2014-07-01
[PDF-1.28 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:The overarching goal of this study was to investigate the influence of repair to individual reinforced concrete bridge columns on the post-repair seismic performance of the bridge system. A method was developed to rapidly repair an earthquake-damaged RC column with fractured longitudinal reinforcement using externally bonded carbon fiber reinforced polymer (CFRP) sheets. Test results showed that the lateral strength and drift capacity of the column were partially restored. This report presents the results of the first phase of this study in which a method was developed to model the repaired RC bridge column, and models of the undamaged (original) and repaired columns were validated with the experimental results. Nonlinear fiber element models were developed using Open System for Earthquake Engineering Simulation (OpenSees) software to simulate the response of the undamaged and repaired columns. The undamaged column was modeled using currently available techniques, while a technique was developed to model the repaired column. Analytical results were validated with experimental results. In the second phase of this work, the developed models will be implemented in a model of a prototype bridge structure to investigate the post-repair seismic response of the bridge structure. This study was sponsored by the University of Missouri Research Board and the National University Transportation Center at the Missouri University of Science and Technology in Rolla, Missouri.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
