关键词: 毛竹, 弯压材, 力学性能, 冰雪灾害

Abstract:

Compared with the undamaged Phyllostachys edulis, the wood mechanical properties of bended bamboo for 4-year-old by frost and snow were studied. It was shown that the wood mechanical properties of bended Phyllostachys edulis were equivalent to or a little less than those of the undamaged bamboo. The bending strength （MOR） of moderately bended bamboo and the modulus of elasticity in static bending（MOE）of heavily bended bamboo were 125.8 Mpa and 10 978.9 Mpa respectively in the culm base, and compared with those of undamaged Phyllostachys edulis wood, the differences were significant. However, the other mechanical properties including tensile strength parallel to grain, compressive strength parallel to grain and shearing strength parallel to grain etc. Between bended and undamaged bamboo wood, the difference were not significant. The study results could provide data supports for the proper ways of rational cutting, process and utilization of bended Phyllostachys edulis wood.

Key words: Phyllostachys edulis, bended bamboo wood, mechanical property, frost and snow disaster