TY - JOUR
T1 - STUDY ON SHEAR FAILURE AND REPAIR METHOD OF REINFORCED CONCRETE BEAM.
AU - Ozaka, Yoshio
AU - Suzuki, Motoyuki
AU - Ishida, Hiroki
AU - Kato, Katsumi
PY - 1985/9/1
Y1 - 1985/9/1
N2 - Reinforced concrete viaducts of the Tohoku Shinkansen suffered considerable damage especially in mid-height beams due to the Miyagi-ken-oki Earthquake (1978), and there were quite a number that would not have been able to withstand use without remedy. In this study the strength-deformation characteristics of 1/2- or 1/3-scale model specimens of rigid-frame viaduct and mid-height beams are obtained experimentally, and the bending shear characteristics of mid-height beams are examined. Further, various repair methods are applied to specimens loaded to different levels with crack width or displacement as the yardstick, and the effects are investigated. As a result, it is confirmed that member yielding load, resistance, deformation performance, etc. , are not less than those of the original member if repaired properly by injecting epoxy resin in cracked parts.
AB - Reinforced concrete viaducts of the Tohoku Shinkansen suffered considerable damage especially in mid-height beams due to the Miyagi-ken-oki Earthquake (1978), and there were quite a number that would not have been able to withstand use without remedy. In this study the strength-deformation characteristics of 1/2- or 1/3-scale model specimens of rigid-frame viaduct and mid-height beams are obtained experimentally, and the bending shear characteristics of mid-height beams are examined. Further, various repair methods are applied to specimens loaded to different levels with crack width or displacement as the yardstick, and the effects are investigated. As a result, it is confirmed that member yielding load, resistance, deformation performance, etc. , are not less than those of the original member if repaired properly by injecting epoxy resin in cracked parts.
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M3 - Article
AN - SCOPUS:0022129614
SN - 0385-5392
SP - 119
EP - 128
JO - Doboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers
JF - Doboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers
IS - 360
ER -