發送短信 : Experimental, numerical study and design of concrete-encased concrete-filled steel tube columns and beam-column joints

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