Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis The Interaction of Reinforced Concrete Skeleton Systems Andarchitectural Form Subjected To Earthquake Effects(Izmir Institute of Technology, 2010) İnan, Tuğba; Korkmaz, Koray; Korkmaz, Koray; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology3 The interaction of architectural form and structural configuration has become a serious issue in the building industry because of the poor seismic performance of reinforced concrete buildings in Turkey. Therefore, it has a determinative role on earthquake behaviour of buildings. The study focuses on R/C skeleton systems which are commonly constructed in building industry of Turkey. In this study, structural irregularities in plan and vertical direction have been investigated in detail based on Turkish Earthquake Code, 2007. Four main cases are generated based on each structural irregularity in plan. These cases consist of 29 main parametric models and totally 265 models with sub models. They are designed as to have symmetrical or asymmetrical plan geometry and regular or irregular rigidity distribution. All models are analyzed by using the structural analyzing software, IdeCAD Static 6.0055. The changes in the earthquake behaviour of buildings were examined according to the number of stories, number of axes, configuration of structural elements, floor openings, projections in plan and vertical direction. Many findings are obtained and assessed as a result of the analysis for each structural irregularity. The most remarkable result shows that structural irregularities can be observed in completely symmetric buildings in terms of plan geometry and rigidity distribution due to the inaccurate structural system selection. Moreover, it has emerged that symmetry in the rigidity distribution is more important than the symmetry in the plan geometry.Master Thesis Response Improvement by Using Active Control of an Earthquake Excited Building(Izmir Institute of Technology, 2004) Işık, Onur; Turan, Gürsoy; Turan, Gürsoy; 03.03. Department of Civil Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyTwo control laws are proposed to a 5-story government building that had been subjected to the 17 November 1999, Düzce, Turkey Earthquake. The building was moderately damaged although it had adequate size beams and columns, and relatively high concrete strength, unlike the remaining moderately damaged buildings in the area. The aim of this study is to investigate, if the building response could have been improved by using active control. Since the building was rigid, it was known that large control forces were needed. The implementation of a controller to a real structure with large control forces and amount would be unrealistic but to investigate the behavior, a 3-dimensional model of the five story building has been formed and 20 actuators, 4 at each level, are symmetrically placed and a control law is formed to improve the building response. Precautions to compensate for errors in the model and precautions about the time loss of the control system have been taken. Finally, closed loop simulations of the system shows that the building response can be improved by using active control, and possibly reducing and/or eliminating failure.