Describir: Continuous frames of reinforced concrete

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