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022			_a0889-3241
100			_aYi, Yousun _9878990
100			_aKim, Hyunsu _9878991
100			_aChoi, Jongkwon _9878992
100			_aMurcia-Delso, Juan _9171128
100			_aBayrak, Oguzhan
245			_aExperimental Study on Drilled Shaft Reinforcing Bar Anchorage in Footings
300			_a77-92 p.
520			_aThis paper presents an experimental study on the anchorage behavior of drilled shaft reinforcement subjected to tension in drilled shaft footings loaded under combined axial force and uniaxial bending moment. Four large-scale tests were conducted on drilled shaft footing specimens employing an equivalent loading condition introducing tension in the drilled shaft reinforcement. Three different anchorage details were tested: straight bars, hooked bars, and headed bars. The drilled shaft reinforcement was capable of developing its full yield strength in tension in all the tests, regardless of the anchorage detail. The tensile stresses in drilled shaft bars were primarily developed in the region of the embedment length closest to the interface between the drilled shaft and the footing, while negligible stress and slip were measured in the vicinity of the unloaded end of the bars for all three anchorage details. Finally, a critical section is also proposed in this study to perform the anchorage check for the drilled shaft reinforcement in drilled shaft footings designed with the strut-and-tie method. The definition of the critical section provides a safe estimate of the available development length of the drilled shaft bars according to the findings of the experimental program.
650			_aBar Anchorage _9878625
650			_aBond _9169281
650			_aDevelopment Length _9169403
650			_aDrilled Shaft Footage _9878993
650			_aDrilled Shaft Reinforcement _9878994
650			_aLarge-Scale Tests _9878628
650			_aStrut-and-tie Method (STM) _9878995
773	0		_dFarmington Hills,MI, U.S.A : American Concrete Institute _x08893241 _tACI Structural Journal
856			_uhttps://DOI:10.14359/51738837
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c814344 _d814344