- A simple seismic performance assessment technique for unreinforced brick masonry structures
- A. Aldemir
- Book Title / Journal: M.Sc Thesis, the Graduate School of Natural and Applied Sciences of Middle East Technical University
- Year: 2010 , Volume: , Series:
- Earthquake engineering
- Description
- There are many advantages of masonry construction like widespread geographic
availability in many forms, colors and textures, comparative cheapness, fire
resistance, thermal and sound insulation, durability, etc. For such reasons, it is still a
commonly used type of residential construction in rural and even in urban regions.
Unfortunately, its behavior especially under the effect of earthquake ground motions
has not been identified clearly because of its complex material nature. Hence, the
masonry buildings with structural deficiencies belong to the most vulnerable class of
structures which have experienced heavy damage or even total collapse in previous
earthquakes, especially in developing countries like Turkey. This necessitates new
contemporary methods for designing safer masonry structures or assessing their
performance. Considering all these facts, this study aims at the generation of a new
performance-based technique for unreinforced brick masonry structures. First,
simplified formulations are recommended to estimate idealized capacity curve
parameters of masonry components (piers) by using the finite element analysis results of ANSYS and regression analysis through SPSS software. Local limit states
for individual masonry piers are also obtained. Then, by combining the component
behavior, lateral capacity curve of the masonry building is constructed together with
the global limit states. The final step is to define seismic demand of the design
earthquake from the building through TEC2007 method. By using this simple
technique, a large population of masonry buildings can be examined in a relatively
short period of time noting that the performance estimations are quite reliable since
they are based on sophisticated finite element analysis results.
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