Effects of different altitudes on main physical and mechanical properties of bamboo
The main physical and mechanical properties of bamboo was measured to investigate the effects of different altitudes on those properties.The results show that both of the air-dry density and basic density increase along with axial height and the altitude increasing.The basic density of bamboo at foot and top of the hill are 0.699 g·cm-3 and 0.715 g·cm-3,and the air-dry density are 0.798 g·cm-3 and 0.827 g·cm-3 respectively.Both the density differences between the bamboo at foot and top of the hill are significant.The modulus of elasticity in static bending,the compressive strength parallel to grain and the bending strength of bamboo at foot and top of the hill are 12 368.28 MPa 11 934.07 MPa,55.858 MPa 59.840 MPa and 183.203 MPa 196.293 MPa respectively.Among them,the differences between the compressive strength parallel to grain,the bending strength of bamboo at foot and top of the hill are also significant.