發送短信 : Behaviour of composite haunched beam connection

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