Seismic behavior of vertical reinforced autoclaved aerated concrete (AAC) panel walls

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2016

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Taghipour, Armin

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In this study, the in-plane seismic behavior of autoclaved aerated concrete (AAC) vertical load-bearing wall panels is examined. Because of the complex behavior of AAC shear walls under cyclic lateral loading and axial load, the design provisions are fundamentally important. The main objective of this study is to validate proposed design provisions for AAC structures in Turkey. Six specimens with different properties and geometries were constructed and tested at Structural Mechanics Laboratory of METU. Mechanical properties of AAC were also determined at METU and were verified with test results at other laboratories. AAC vertical wall panels were produced at AKG-Gazbeton. Test samples were made of various numbers of wall panel units, laid vertically. Specimens with two and four vertical units were tested with and without axial load. Finally, the samples with six vertical wall panels were tested with and without window opening in specimen. The tests were conducted by applying cyclic lateral load. Different measuring devices like LVDTs and Load Cells were installed to acquire the data and perceive the behavior of the samples. To verify the experimental results, an analytical model for each specimen was developed to compare the experimental and analytical results. The value 3 for structural behavior factor, R, given in the new proposed Turkish Earthquake Code (TEC 2016) seems to be fairly acceptable and on the safe side according to the test results. Ultimate drift ratio should be limited to 1%. Both MSJC 2011 and draft TEC 2016 estimated many test results unsafely.

Subject Keywords

Shear walls., Concrete, Vertical seismic profiling., Earthquake engineering.

URI

http://etd.lib.metu.edu.tr/upload/12620280/index.pdf
https://hdl.handle.net/11511/25919

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

A. Taghipour, “Seismic behavior of vertical reinforced autoclaved aerated concrete (AAC) panel walls,” M.S. - Master of Science, Middle East Technical University, 2016.