مقايسه‌ي تجربي و عددي ترميم اتصال تير به ستون كناري بتن مسلح با استفاده از الياف بسپاري FRP( )

COMPARISON BETWEEN EXPERIMENTAL AND NUMERICAL STU Y OF DAMAGED EXTERIOR BEAM-COLUMN BY FRP LAMINATE

In this st udy, the use of the FRP laminat e technique in repairing a reinforced exte rior beam- column joint which has been damaged by simulated seismic load , is investigated , exp erim entally and analytically. Areversed cyclic load was applied to the tip of the full scale exte rior beamcolnmn spe cimen. Cyclic loading continued until the ultim at e capacity of th e specimen was reached . Then, th e specimen was repair ed by using CFRP laminate. The repaired specimen was snbjec ted to cyclic loading. For an analytical study of th e same beam-column specimen, the finite element model was prepared. The model was calibrated by using the result of the experiment al t est . For th e effective ness of th e CFRP arrangement on th e behavior of beam- column connections, five nonlinear analytical models, with different CFRP arrangement und er reserved cyclic loading, were st udied. The resul ts indicate that using CFRP laminate was effectiv e in restoring the strength, energy dissipation . Comparisons between the capacity of th e numerical model using different arrangemen ts of CFRP laminate , are mode.