|تعداد مشاهده مقاله||106,249,173|
|تعداد دریافت فایل اصل مقاله||83,148,776|
Evaluating the Seismic Performance of Steel-SMA Hybrid Braces
|Civil Engineering Infrastructures Journal|
|مقاله 6، دوره 48، شماره 2، اسفند 2015، صفحه 285-296 اصل مقاله (975.47 K)|
|نوع مقاله: Research Papers|
|شناسه دیجیتال (DOI): 10.7508/ceij.2015.02.005|
|Mohammad Hooshmand1؛ Behzad Rafezy2؛ Yousef Hosseinzadeh3؛ Hamid Ahmadi* 4|
|1M.Sc. Graduate, Young Researchers and Elite Club, Tabriz Branch, Islamic Azad University, Tabriz, Iran|
|2Associate Professor, Department of Civil Engineering, Sahand University of Technology, Tabriz, Iran|
|3Associate Professor, Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran|
|4Assistant Professor, Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran|
|The seismic performance of hybrid braces composed of steel and shape memory alloy (SMA) was investigated in this paper. Six types of hybrid braces were used, constituted by SMA content of 0, 20, 40, 60, 80, and 100%. A nonlinear dynamic analysis was performed under El Centro earthquake records, with the maximum acceleration of 0.6g and 0.9g. Our results showed that the seismic performance, i.e., the amount of energy absorption and residual strain, of steel–SMA hybrid braces depends on the SMA content. The optimal value of SMA content was 20%, as, at this concentration, a hybrid brace can be designed with good seismic performance at a justifiable fabrication cost.|
|Finite Element modeling؛ Hybrid brace؛ Nonlinear dynamic analysis؛ Seismic performance؛ Shape Memory Alloy (SMA)|
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