Investigating the Seismic Behaviour of Split-Level Building Structures

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Abdoli, Masoud | 2011

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 42898 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Khonsari, Vahid
Abstract:
Observations made after previous earthquakes have shown the crucial role of irregularities in initiating damage in buildings with irregularity, either in Plan or in Elevation. Since in existing Building Codes, there is no provision for the distribution of the Equivalent Static Loads for such buildings, designers have no option but to resort to Dynamic Analysis. In this work, the seismic behaviour of a group of two-dimensional steel building structures with irregularity in elevation, namely Split-Level buildings, was studied. The studied structures consist of a series of 5- and 15-storey frames having two parts with splitting distance of 150 cm. Both, moment-resisting and braced frames were studied. While for moment-resisting frames, the correlation between the results of Static Analysis (using the earthquake load distribution pattern suggested by the supervisor of this project and a former MSc student) and those of Modal Analysis was quite satisfactory, for braced frames such correlation did not exist
Keywords:
Split Level Buildings ; Moment Resistance Frame ; Modal Analysis ; Equivalent static Analysis ; Braced Frames ; Vertical Irregularity

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