000			01774aab a2200217 4500
008			240216b20232023|||br||| |||| 00| 0 eng d
022			_a0889-3241
100			_aKim, Sanghee
100			_aKang, Thomas H.-K.
100			_aJung, Donghyuk _9881101
245			_aSeismic Behavior of Monolithic Exterior Beam-Column Connections with Unbonded Post-Tensioning
300			_a49-62 p.
520			_aThis paper presents experimental results on seismic behaviors of post-tensioned (PT) monolithic exterior beam-column connections. Lateral cyclic loading tests were carried out for six fullscale exterior beam-column joint subassemblies fabricated with normal- and high-strength materials. Despite substantial joint cover spalling, the normal-strength specimens exhibited satisfactory lateral strengths and hysteretic behaviors up to ±5% drift ratios by virtue of the confinement effect of post-tensioning. The high-strength PT specimens also showed stable hysteretic behaviors with significantly reduced joint damages. It was found that the post-tensioning can increase the joint shear strength by more than 60% in both types of specimens. Furthermore, the post-tensioning was effective in retaining the lateral stiffness of the beam-column joints under the repeated loads, especially in high-strength specimens, enabling them to maintain at least 90% of their first-cycle stiffnesses throughout the testing.
650			_aCyclic Test
650			_aExterior Beam-Column Connection _9881102
650			_aHigh-Strength Concrete (HSC) _9172470
650			_aJoint Shear Demand _9881103
773	0		_x08893241 _tACI Structural Journal _dFarmington Hills,MI, U.S.A : American Concrete Institute
856			_uhttps://DOI: 10.14359/51739085
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c815011 _d815011