Abstract
The principal objective for this work was to extend the field of application of FEM to space frame beam-column connections under static loading and with lateral displacements. A four-storey building was modelled under static load condition. Horizontal and vertical structural elements were designed according to Eurocode 2. In order to understand the behavior of the external node made by under column, two beam and upper column, two models using correct boundary condition and nonlinear behavior of materials have been done using Abaqus Software The analysis was performed on an interior and an exterior joint models each in two conditions: unconfined and confined joint varying the distributions of number of stirrups for the beam reinforcement and the column reinforcement .A sup structural model to submit to numerical analysis have been performed, the Concrete Damage Plasticity model (CDPM) has been chosen for fit the nonlinear behavior for the concrete and the elastoplastic model has been adopted for the nonlinear behavior for the reinforcement (stirrups, longitudinal and vertical bars). The models were then verified against already existing and validated analytical results and results of experiments conducted on specimens.
Highlights
The continuous failure and collapse of buildings and other infrastructures under gravity loads or laterally induced seismic loads or wind loads is a crucial phenomenon in the construction sector
Shear failure can occur prematurely stopping the beams from attaining ultimate flexural capacity leading to total collapse of the building as a result of exposure to severe damages at the joint region
The analysis results of this study have endeavored to present the results obtained from the nonlinear finite element analysis of the above numerical models that describes the nonlinear shear behavior of poorly designed and detailed reinforced concrete corner joint for comparison with experimental and analytical results
Summary
The continuous failure and collapse of buildings and other infrastructures under gravity loads or laterally induced seismic loads or wind loads is a crucial phenomenon in the construction sector. This failure can be due to several reasons among which the inadequate consideration design in the joint project. Emphasis was laid on the shear response mechanism of the joint. The models presented in this work and analysis are corner beam-column connection focusing on the shear failure mode under pure static loading first, static loading with lateral displacement
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