抄録
Mechanical properties of prestressed glued laminated timber T-beams (PGLT) was experimentally studied under static loadings. The behavior was linear up to the peak load and the flexural or shear failure occurred at the peak load. Although some load drop was observed, the prestressing tendons prevented the complete collapse and helped regaining load carrying capacity for the further deflection. The flexural and shear strengths simulated the flexural capacity well and shear capacity conservatively assuming a linear elastic behavior with specified materials strength in the Standard for Structural Design of Timber Structures published by Architectural Institute of Japan. A creep test was also conducted and approximate formula for flexural creep behavior was obtained.
