TY  - SER
AU  - li, Guoping
AU  - Hu, Hao
AU  - Niu, Changyan
TI  - Web-Shear Behavior of Externaliy Prestressed T-Shaped Beams with  Both Positive and Negative Moment Regions
KW  - External Prestressing
KW  - Moment Ratio
KW  - Shear Span-Depth Ratio
ER  -