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

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Text this: Tall building: effect of opening on torsional rigidity of a 3-D core wall