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Performance of RC beam-column joints with different joint detailing
, S. Kanaka Durga
Published in
2013
Pages: 1191 - 1202
Abstract
An experimental investigation on the performance of reinforced concrete beam-column joints is reported. The performance of beam-column joints, in terms of load vs. deflection, load vs. slip, moment vs. rotation, moment vs. strain and moment vs. drift ratio, has been studied. The elongation and slip of tensile reinforcement at beam-column interface result in significant fixed end rotations. It has been observed that there is a significant influence of anchorage length on the performance of exterior beam-column joints. The increase in the strength of the joint was negligible, while its ductility has been increased significantly with the anchorage length increased from Ld to (Ld + 10d). The drift ration at the peak load has been observed to be around 2.0%, which was increased to 4.5 or 6.0 at the failure of joint. The reinforcement in the beam-column joint region needs special detailing requirements to withstand the ductility demand under seismic loading. The detailing of anchorage reinforcement in the beams has a significant influence on the ductility of joints. When the beam-column joints are detailed properly, the joint strength has not improved much but the ductility has been improved significantly.
About the journal
JournalProceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures, FraMCoS 2013
Open AccessNo
Concepts (18)
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    ANCHORAGE LENGTHS
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    BEAM-COLUMN INTERFACES
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    Beam-column joints
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    DRIFT RATIO
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    Experimental investigations
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    EXTERIOR BEAM-COLUMN JOINTS
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    RC BEAM-COLUMN JOINTS
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    REINFORCED CONCRETE BEAM-COLUMN JOINTS
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    ANCHORAGES (CONCRETE CONSTRUCTION)
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    Bond strength (materials)
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    Concrete beams and girders
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    Concrete buildings
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    Concrete construction
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    Ductility
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    FRACTURE MECHANICS
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    Reinforced concrete
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    Reinforcement
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    Concretes