Browsing by Author "Mekonnen, Yeshambel"
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Item Comparative Evaluation of Concentrically Bracing System for Lateral Loads on Medium Rise Steel Building Structures(Addis Ababa University, 2015-02) Mekonnen, Yeshambel; Adamu, Asnake (PhD)Lateral load resisting systems are structural elements providing basic lateral strength and stiffness, without which the structure would be laterally unstable. The unstable nature of structures is solved by appropriate provision of bracings systems. In this study, steel bracing is provided at the periphery of four, six and ten story buildings to determine the efficiencies of structural systems under five bracing types is considered. These bracings are V, inverted V, combination of V and inverted V which forms X bracing in two successive stories, K, mirror of K bracings. The buildings with incorporated bracing systems are analyzed using ETABS analysis software as per Eurocode 3 and 8. Then, the lateral displacement value under each of the bracing type is evaluated. The result shows that chevron (inverted V) bracing gives lesser lateral displacement. This indicates that this bracing gives better performance for lateral load resistance.