纯扭构件的受力性能（37P）

Questions

1 What is the behavior and crack pattern of a RC beam under pure torsion ?

2 How to reinforce torsional member ?

3 Torsional resistant mechanism and analysis model of RC torsional  member ?

4 Torsional capacity calculation ?

5 Upper and lower limit of torsional member ?

6 Behavior and calculation under combined torsion and shear ?

开裂扭矩

矩形截面开裂扭矩

箱形截面