The Concrete Shear Capacity of the Interior Beam Column Joint Subjected to Seismic Load Rahmani Kadarningsih (a*)
(a) Universitas Negeri Gorontalo
(*) rkadarningsih[at]ung.ac.id
Abstract
The beam column joint is the most vulnerable area in the moment resisting frame system. The failure in this area can causes the failure of the overall system. The beam column joint must be in elastic behaviour, therefore the beams which assembling in the joint achieve the flexural capacity. The condition of the joint will be even more critical during an earthquake. The seismic load causes the beams that arranged in the interior column resist a directional moment. This condition is different from the behaviour of the beam when resist the gravitation loads. This study shows how beam column joints without reinforcement are not adequate to resist the lateral earthquake load that occurs. The joint is only adequate to resist the load in the amount 38% of the beams flexural capacity. The amount of concrete shear capacity on the joint is compared to the joint concrete shear capacity on SNI 2847:2013 and the joint shear capacity of Park and Paulay (1974). The calculation of the concrete shear capacity on the SNI 2847:2013 reached 80.2% the joint shear capacity of the experiment. The calculation of the concrete shear capacity of the Park and Paulays reached 31.2% joint shear capacity in the experiment.
Keywords: joint, reinforcement, stirrup, king cross profile
