Describir: Composite construction in steel and concrete :

 _    _    _    _     _____     _____      _____     ___      _____   
| |  | || | || | ||  |__  //   |  ___||   / ___//   / _ \\   /  ___|| 
| |/\| || | || | ||    / //    | ||__     \___ \\  / //\ \\ | // __   
|  /\  || | \\_/ ||   / //__   | ||__     /    // |  ___  ||| \\_\ || 
|_// \_||  \____//   /_____||  |_____||  /____//  |_||  |_|| \____//  
`-`   `-`   `---`    `-----`   `-----`  `-----`   `-`   `-`   `---`   
                                                                      
   ___    
  / _ \\  
 | / \ || 
 | \_/ || 
  \___//  
  `---`