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

Taghipour, Armin
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.  


Seismic behavior of autoclaved aerated concrete reinforced vertical panel buildings
Gökmen, Furkan; Binici, Barış; Department of Civil Engineering (2017)
In this study, the seismic behavior of Autoclaved Aerated Concrete (AAC) reinforced panel walls and buildings was investigated. The structural members were investigated under cyclic lateral loading and axial load and the results were compared with the previous tests. The main objective of this study was to provide recommendations for nonlinear analysis of the reinforced AAC panel walls and buildings. OpenSees plat-form was chosen as the computational platform. The walls were modeled with fiber sections. The...
Seismic behavior of reinforced autoclaved aerated concrete wall panels
TAGHIPOUR, ARMIN; Canbay, Erdem; Binici, Barış; ALDEMİR, ALPER; Uzgan, Ugur; ERYURTLU, ZAFER (2018-09-01)
Vertical reinforced autoclaved aerated concrete (AAC) panel systems are among attractive alternatives for low‐rise buildings. The popularity of AAC panels in building construction is increasing due to their unique material properties, such as being light weight, good insulator, fire resistant combined with having high speed of erection and ease of quality control. However, past experimental evidence on the seismic response of reinforced vertical panels is rather limited with few tests on multi‐panel specime...
Influence of the shear wall area to floor area ratio on the seismic performance of existing reinforced concrete buildings
Günel, Ahmet Orhun; Burak Bakır, Burcu; Department of Civil Engineering (2013)
An analytical study is performed to evaluate the influence of shear wall area to floor area ratio on the behavior of existing mid-rise reinforced concrete buildings under earthquake loading. The seismic performance of five existing school buildings with shear wall ratios between 0.00% and 2.50% in both longitudinal and transverse directions and their strengthened counterparts are evaluated. Based on the structural properties of the existing buildings, additional buildings with varying shear wall ratios are ...
Seismic Retrofit of Deficient RC Structures with Internal Steel Frames
ÖZÇELİK, RAMAZAN; Akpinar, Ugur; Binici, Barış (2011-12-01)
This paper describes an experimental study on internal steel frames (ISFs) to retrofit seismically deficient reinforced concrete (RC) frames. One reference and six strengthened frame specimens were tested under constant gravity load and cyclic lateral displacement excursions. Installation of the ISF with and without anchors to the RC frame was examined. Test results showed that the snug tight ISF installed inside an RC frame may suffice to realize the benefit of implementing ISFs. If the horizontal shear st...
Earthquake stresses and effective damping in concrete gravity dams
Akpinar, Ugur; Binici, Barış; Arıcı, Yalın (2014-03-01)
Dynamic analyses for a suite of ground of motions were conducted on concrete gravity dam sections to examine the earthquake induced stresses and effective damping. For this purpose, frequency domain methods that rigorously incorporate dam-reservoir-foundation interaction and time domain methods with approximate hydrodynamic foundation interaction effects were employed. The maximum principal tensile stresses and their distribution at the dam base, which are important parameters for concrete dam design, were ...
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.