Describir: Elementary structural analysis and design :

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