正交胶合木板强轴方向抗剪性能试验研究

SHEAR PROPERTIES IN MAJOR STRENGTH DIRECTION OF CROSS-LAMINATED TIMBER MADE FROM CANADIAN HEMLOCK

基于试验研究铁杉CLT板沿强轴方向的抗剪性能,分析其破坏模式,根据不同规范计算正交胶合木板沿强轴方向的抗剪强度,结果表明,当铁杉CLT板沿强轴方向抗剪时,其破坏模式主要为滚剪破坏,与北美规范相比,我国规范计算的滚剪强度值稍显保守。

In this paper, the CLT shear properties in the major strength direction were studied based on the experimental results. The failure modes were analyzed, and the shear strength in the major strength direction was calculated according to different code provisions. It shows that the dominant failure mode is rolling shear failure for the CLT shear specimens loaded along the major strength direction. Furthermore, the rolling shear strength calculated following the Chinese standard was more conservative compared with that calculated following the CLT handbook.