Abstract
The ductility capacity, energy dissiaption capapcity and load - deformat ion behaviour of the exterior beam column jo ints constructed with an external anchorage system by provid ing a s mall project ion beyond the column face is evaluated. The evaluation is based on the experimental results of two one fifthe scale exterior bam co lu mn joint specimens tested as part of an extensive experimental program. The control specimen (CS) constructued and detailed as per IS 13920:1993 codal provisions and externally anchoraged specimen (EAS) cast with small projecttion beyond the column face. A s mall axial load was applied to the column port ion of the subasembly and held constant during the test. The free end of the beam was subjected to cyclic load representing a wide range fro m elastic to inelastic loading.By providing an external anchorage system, the reinforcement detailing and concrete placement in the joint region beco me eased and the behavior was better than conventional method of construction. The test results indicate that external anhorage system exhibits excellent behavior in energy dissipation , ductility and load - deformation parameter than for specimens constructed to current design recommendations.
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