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Earthquakes and Structures Volume 14, Number 1, February 2018 , pages 011-20 DOI: https://doi.org/10.12989/eas.2018.14.1.011 |
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Evaluation of behavior of updated three-dimensional panel under lateral load in both independent and dependent modes |
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Omid Rezaifar, Hamun Adeli Nik and Majid Ghohaki
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| Abstract | ||
| Three-dimensional panels are one of the modern construction systems which can be placed in the category of industrial buildings. There have always been a lot of studies and efforts to identify the behavior of these panels and improve their capacity due to their earthquake resistance and high speed of performance. This study will provide a comparative evaluation of behavior of updated three-dimensional panel\'s structural components under lateral load in both independent and dependent modes. In fact, this study tries to simultaneously evaluate strengthening effect of three-dimensional panels and the effects of system state (independent, L-shaped and BOX shaped Walls) with reinforcement armatures with different angles on the three-dimensional panels. Overall, six independent wall model, L-shaped, roofed L-shaped, BOX-shaped walls with symmetric loading, BOX -shaped wall with asymmetrical loading and roofed BOX-shaped wall were built. Then the models are strengthened without strengthened reinforcement and with strengthened reinforcements with an angle of 30, 45 and 60 degrees. The applied lateral loading, is exerted by changing the location on the end wall. In BOX-shaped wall, in symmetric and asymmetric loading, the load bearing capacity will be increased about 200 and 50% respectively. Now, if strengthened, the load bearing capacity in symmetric and asymmetric loading will be increased 3.5 and 2 times respectively. The effective angle of placement of strengthened reinforcement in the independent wall is 45 and 60 degrees. But in BOX-shaped and L-shaped walls, the use of strengthened reinforcement 45 degrees is recommended. | ||
| Key Words | ||
| three-dimensional panels; independent mode and system; improvement of lateral load capacity; strengthening panel | ||
| Address | ||
| Omid Rezaifar, Majid Ghohaki: Department of Civil Engineering, Semnan University, Across from Sokan Park, Semnan, Iran Hamun Adeli Nik: Faculty of Civil Engineering, Semnan University, 18, 28 Street, Gisha, Tehran, Iran | ||