关键词: 高阶剪切理论, 竹木复合空心板, 弯曲性能, 横向剪切效应

Abstract:

The bending properties of the hollow plank of the bamboo-timber combination were in detail analyzed with high-order shear deformation theory(HSDT) in this paper. The results indicated that transverse shear effect affects greatly on the bending properties of the plank while the ratio of span-height was small. The calculated deflection was the basic same with first-order shear deformation theory(FSDT). The calculated strength could show the affection caused by transverse shear effect and the affection had only relation to the loading value and no to the ratio of span-height. The distribution of stress on cross-section was obvious different from FSDT and particularly shear-stress had not only considerable difference on cross-section in span-center but also change as the location of cross-section.

Key words: high-order shear deformation theory, hollow plank of bamboo-timber combination, bending properties, transverse shear efffect