TY  - JOUR
T1  - Development of CFT Column Reinforcement Method to
Improve Seismic Performance of Buildings
AU - Lee, Dong-Oun 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 5
SP  - 1388
EP  - 1394
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.1388.1394
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.1388.1394
KW  - CFT column
KW  -seismic performance
KW  -earthquake resistant
KW  -high-performance mortar
KW  -structural
simulation
KW  -performance
AB  - Recently, earthquake-affected areas are increasing worldwide. Especially, buildings that are not
designed to be earthquake resistant may be vulnerable to earthquakes and various reinforcement methods are
being applied to improve seismic performance. In addition, structures that penetrate buildings such as roads
and subways also need to be reinforced by vibrations such as earthquakes. This this research, therefore, aims
to develop CFT column strengthening method with excellent seismic performance, so that, there is no damage
caused by collapse in buildings where periodic vibration and earthquake occur. The seismic retrofit method of
the CFT (Concrete Filled Tube) columns is a method in which CFT connectors are installed on the surface of
a conventional reinforced concrete member first then the CFT columns are welded and integrated into the joint
device, finally, high-performance mortar is injected to improve the seismic performance of existing reinforced
concrete. For the performance test, we propose structural simulation and excess water removal method to
improve the concrete performance inside the CFT column.
ER  -