ブナLVLフレーム部材の強度に関する研究(5) : LVLの材料疲労強度試験(2)(口頭による研究発表概要)

抄録

To examine the properties of LVL beech frames, compression-compression fatigue test are carried out at low compression loading levels and high loading cycle in the direction palallel to wood grain. Furthermore, a static compression test was done with the test pieces which didn't change the test pieces which a compression load was put on repeatedly. The veneer of LVL is beech and the bonding agents of LVL is vinyl urethane. Fundamental load is 1O KN and loading range is from 8.5 KN to 11.5 KN. The number of cycles is 10^4,10^5 and 10^6. We study the shrinking of the solid beech and that of LVL and the destruction strength.