Title:
Composite Strips with Various Anchor Systems for Retrofitting Concrete Beams
Author(s):
Isamu Yoshitake, Keiyu Yumikura, Yoichi Mimura, and Yail J. Kim
Publication:
IJCSM
Volume:
5
Issue:
1
Appears on pages(s):
43-48
Keywords:
anchor; beam; carbon fiber reinforced polymer; concrete; retrofitting
DOI:
Date:
6/30/2011
Abstract:
This paper presents the performance of anchor systems for reinforced concrete beams retrofitted with carbon fiber reinforced polymer (CFRP) strips. Nine simply-supported beams are tested with various anchor systems such as steel hooks, steel plates with anchor bolts, CFRP anchor plates, and near-surface mounted (NSM) CFRP strip. The effects of these anchors on the behavior of the retrofitted beams are discussed, including load-carrying capacity, failure modes, and ductility characteristics. Test results indicate that end-anchorage is an important parameter when a CFRP-retrofit design is conducted. Mechanical bolts and NSM CRFP anchors are recommended.