Text this: Progressive collapse of steel frames in fire

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