Investigation of Fiber-Reinforced Polymer for Seismic Rehabilitation of Concrete Structural Frames with Unreinforced Masonry Infill
Abstract
The U.S. Army currently operates approximately 1300 older buildings that use masonry-infilled concrete frames as their principal structural system. About 700 of these buildings do not meet current seismic code requirements and are considered vulnerable to damage during an earthquake. The primary objective of this research was to investigate the performance of FRP composite materials when used to rehabilitate masonry-infilled concrete frame systems. A secondary objective was to investigate the seismic performance of multi-bay, multi-story masonry-infilled concrete frame systems similar to those still in use on Army installations in U.S. areas of high seismicity. The models used in this study were half-scale in order to conform to the physical limitations of the testing facility. Four experimental tests were conducted on two physical models. The results of four tests were analyzed and compared to determine the influence of their distinguishable variables. The general conclusion drawn from these studies is that CFRP overlay material can be bonded to concrete to provide effective rehabilitation of masonry infilled concrete frames. The test results indicate that CFRP can improve structural strength and deformation capabilities.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2003
- Accession Number
- ADA416538
Entities
People
- Ghassan K. Al-chaar
- Justin B. Berman
- Steven C. Sweeney
Organizations
- Engineer Research and Development Center