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Title: Dynamic Response Evaluation of Reinforced Concrete Frames Incorporating Different Analytical Beam-Column Joint Modeling Schemes
Authors: Adom-Asamoah, Mark
Osei Banahene, Jack
Keywords: Beam-Column Joint
Reinforced Concrete Frames
Shear Deformation
Issue Date: 2015
Abstract: Extensive research programs have shown that non-ductile reinforced concrete (RC) frames that possess typical deficient reinforcing details need to be modeled appropriately to give accurate estimates of the structural performance under seismic action. Structural components that are capable of yielding such as beam-column joint can lead to substantial vulnerability and structural damage and as such several analytical models for simulating beam column joint response have been proposed in literature. This paper conducts a comparative study of the seismic performance of a three story gravity loading design (GLD) RC frames that possesses detailing provisions of British Standard (BS) 8110 in which the shear and bond slip behavior of beam column joint is modelled either implicitly or explicitly. The variations in the structural response of five beam- column joint models proposed in literature was investigated. A nonlinear opensource finite element platform, OpenSees, was employed in performing the structural analysis of building under study. Nonlinear time history analysis was carried out with ten historical ground motions records that are scaled to match a target design spectrum at the first modal period of the building. The maximum interstory drift ratio and joint rotation were the engineering demand parameters that were used to assess the seismic performance of the modeled frame. Results obtained showed that, that modeling scheme that incorporated joint shear and bond –slip deformations, can significantly affect the dynamic response. The conventional centerline modeling of RC frames was found to underestimate the roof drift and the rotational demand when compared with the models that included the joint response.
Description: Proceedings of 2015 conference
URI: http://hdl.handle.net/123456789/11324
Appears in Collections:College of Engineering

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