Describir: Design of steel structures :

 ______     _____     ______     ___      ______   _    _    _    _   
|      \\  |  ___||  /_____//   / _ \\   /_   _// | || | || | |  | || 
|  --  //  | ||__    `____ `   / //\ \\  `-| |,-  | || | || | |/\| || 
|  --  \\  | ||__    /___//   |  ___  ||   | ||   | \\_/ || |  /\  || 
|______//  |_____||  `__ `    |_||  |_||   |_||    \____//  |_// \_|| 
`------`   `-----`   /_//     `-`   `-`    `-`'     `---`   `-`   `-` 
                     `-`                                              
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`