ONE-WAY SHEAR RESISTANCE OF RC MEMBERS WITH UNBRACED STIRRUPS
Keywords:
REINFORCED CONCRETE, SHEAR RESISTANCE, SHEAR REINFORCEMENT.Abstract
THIS PAPER PRESENTS RESULTS OF EIGHT EXPERIMENTAL TESTS CARRIED TO EVALUATE THE MECHANICAL PERFORMANCE OF UNBRACED ÂWÂ STIRRUPS. REINFORCED CONCRETE WIDE BEAMS WERE TESTED AND THEIR CHARACTERIS-TICS WERE IDEALIZED TO REPRESENT COLUMN STRIPS IN FLAT SLAB BUILD-INGS. THE MAIN VARIABLES WERE: THE TYPE OF SHEAR REINFORCEMENT; THE SHEAR-SPAN TO EFFECTIVE DEPTH RATIO (A/D); AND THE FLEXURAL (ÏL) AND SHEAR (ÏW) REINFORCEMENT RATIOS. IN GENERAL, BOTH THE RESPONSE AND THE SHEAR RESISTANCE OF THE STRUCTURAL ELEMENTS WITH UNBRACED ÂWÂ STIRRUPS WAS SIMILAR TO THOSE ELEMENTS WITH VERTICAL CLOSED STIRRUPS. INCREMENTS OF SHEAR RESISTANCE OF UP TO 84% WERE ACHIEVED, INDICATING THAT THEY HAVE HIGH POTENTIAL FOR USE AS SHEAR REINFORCEMENT IN SLAB-COLUMN CONNECTIONS.
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2016-11-01
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