أرسل هذا في رسالة قصيرة: Responses of concrete-filled cold-formed square hollow and double-C steel stub columns under cyclic and repeated loadings

  _____     ______    _  __     ___              
 /  ___||  /_   _//  | |/ //   / _ \\      ___   
| // __     -| ||-   | ' //   / //\ \\    /   || 
| \\_\ ||   _| ||_   | . \\  |  ___  ||  | [] || 
 \____//   /_____//  |_|\_\\ |_||  |_||   \__ || 
  `---`    `-----`   `-` --` `-`   `-`     -|_|| 
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