Investigation of Fiber-Reinforced Polymer for Seismic Rehabilitation of Concrete Structural Frames with Unreinforced Masonry Infill

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 obj...

Full description

Saved in:
Bibliographic Details
Main Authors: Al-Chaar, Ghassan K, Berman, Justin B, Sweeney, Steven C
Format: Report
Language:English
Subjects:
ARMY FACILITIES
BONDED JOINTS
CFRP(CARBON FIBER REINFORCED POLYMER)
CODING
COMPOSITE MATERIALS
CONCRETE
DEFORMATION
EARTHQUAKES
EXPERIMENTAL DESIGN
FIBER REINFORCED POLYMERS
FIBER REINFORCEMENT
FRAMES
INFILLED CONCRETE STRUCTURES
Laminates and Composite Materials
LATERAL FORCE
MASONRY
MATERIALS
PE62784A
PHYSICAL PROPERTIES
POLYMERS
REHABILITATION
REINFORCED CONCRETE
SEISMIC VULNERABILITY
SEISMOLOGY
STRENGTH(MECHANICS)
STRUCTURAL ENGINEERING
Structural Engineering and Building Technology
STRUCTURAL RELIABILITY
TEST METHODS
VULNERABILITY
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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. The original document contains color images. All DTIC reproductions will be in black and white.