Abstract
(Received November 28, 2014 / Revised January 28, 2015 / Accepted January 29, 2015)i´geA o ¼C £© a ae `ICAE C± a cE3 , 3 ¨ , aoCU ! o E × . IMl - c #' 2.0 2C 4e( ׳ 6½ !4AI a bUa´geA 5±´ge e×o 3 , 3 ¨ , ´ ¨CU !4Z#Je( ׳ 6½ aA~© c Uu 2³ E× . i´© A 2CE j©eE Ð gor -C Jae e( ׳ 6½ a e <CAE Eer aE 2 a a ae´ #¤× . ag , ?o þaee3$ SA a <'e(oUe3½ !× bM jKE SB $ ² -a <O #C±or h$K !e¼ ] , AE | -e( ׳ 6½ a 4ACA a <O #C± wE3 , 3 ¨ , ©j o A zCUaoCU (drift) !J o[¤× . j I a bUa´ge , e3 a , [ ¼ ¨CABSTRACTCoupling beams posses proper strength, stiffness and ductility capacities to resist efficiently under seismic loads. The strength, stiffness and ductility capacities for special diagonally reinforced concrete coupling beam with a span-to-depth ratio 2.0 or less is higher than those of coupling beam with conventionally reinforced concrete coupling beam. However, diagonally reinforced detailing creates major construction problem. In this study, design alternatives for diagonally reinforced concrete coupling beams were experimentally investigated. The results show that angle reinforced coupling beam(specimen SA) exhibited a better stable behavior in comparison with non-diagonally coupling beams(specimens SB-series) and sustained corresponding drift ratio, peak-to-peak stiffness and cumulative dissipated energy in comparison to diagonally coupling beam(specimen CA). ,FZXPSET Special Diagonally Reinforced Concrete Coupling Beam, Reinforcement Detail, Seismic Performance
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