Describir: Statically indeterminate structures :

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