PARAMETRIC STUDY OF DIAGRID STRUCTURE COMPARED WITH RIGID FRAME STRUCTURE SUBJECTED TO LATERAL LOADING
Keywords:Tall buildings, Lateral resisting system, Diagrid building, Rigid frame building, Parametric study, Drift, Displacement, ETABS
AbstractTall buildings are now preferred due to the scarcity of available land in cities and the rapid development of the urban population. People are now rising upward to avoid ongoing urban sprawl and to protect vital agricultural productivity. As the building's height increases, the lateral resisting system becomes just as important as the gravity supporting system. Diagrid has recently acquired favor for tall structures among the numerous lateral stability of tall buildings due to its structural efficiency and aesthetic possibilities given by the system's unusual geometric layout. Because of its triangulated construction, the diagonal components of the diagrid system can support both gravity and lateral loads. For this study, two structural models of 24-story buildings are used: one with a rigid frame structure and one with a diagrid structure. ETABS is used for modeling and analysis of buildings. The analytical findings are compared in terms of story drift and story displacement subjected to lateral loading. When compared to rigid framed structures, diagrid systems are far more effective at reducing drift and displacement. Because of the axial action of the diagonal parts, diagonal configurations carry shear. Shear is carried by rigid-framed constructions due to the bending of vertical columns.
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