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A nonlinear equivalent frame model for displacement based analysis of unreinforced brick masonry buildings
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Date
2010
Author
Demirel, İsmail Ozan
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Although performance based assessment procedures are mainly developed for reinforced concrete and steel buildings, URM buildings occupy significant portion of building stock in earthquake prone areas of the world as well as in Turkey. Variability of material properties, non-engineered nature of the construction and difficulties in structural analysis of perforated walls make analysis of URM buildings challenging. Despite sophisticated finite element models satisfy the modeling requirements, extensive experimental data for definition of material behavior and high computational resources are needed. Recently, nonlinear equivalent frame models which are developed assigning lumped plastic hinges to isotropic and homogenous equivalent frame elements are used for nonlinear modeling of URM buildings. The work presented in this thesis is about performance assessment of unreinforced brick masonry buildings in Turkey through nonlinear equivalent frame modeling technique. Reliability of the proposed model is tested with a reversed cyclic experiment conducted on a full scale, two-story URM building at the University of Pavia and a dynamic shake table test on a half scale, two story URM building at the Ismes Laboratory at Bergamo. Good agreement between numerical and experimental results is found. Finally, pushover and nonlinear time history analyses of three unreinforced brick masonry buildings which are damaged in 1995 earthquake of Dinar is conducted using the proposed three dimensional nonlinear equivalent model. After displacement demands of the buildings are determined utilizing Turkish Earthquake Code 2007, performance based assessment of the buildings are done.
Subject Keywords
Building, Brick.
,
Building materials.
,
Buildings.
URI
http://etd.lib.metu.edu.tr/upload/12612772/index.pdf
https://hdl.handle.net/11511/20326
Collections
Graduate School of Natural and Applied Sciences, Thesis
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İ. O. Demirel, “A nonlinear equivalent frame model for displacement based analysis of unreinforced brick masonry buildings,” M.S. - Master of Science, Middle East Technical University, 2010.