The Research of Parallel to the Grain Compression Performance Test of Laminated Glued Bamboo-wood Composites

Original scientific paper Research of bamboo-wood composites compression performance provides a basis for material selections for prestressed glued bamboo-wood beams and other components whose compression is mainly shared by glued bamboo-wooden composites. Four kinds of wood and two kinds of bamboo were selected to comprise 22 groups (6 specimens each group) divided into 4 batches to study the influence factors on bamboo/wooden material type; factors such as composition pattern, layer plate thickness, and lamina lay-ups type. Compressive strength, elasticity modulus, ductility, and failure mechanisms were all compared and analysed. Results showed that failure modes were mainly oblique shear failure, laminates bending failure, laminates tackless failure, while the end local pressure and overall bending failure occured less frequently. Compressive strength of bamboo was 1,5 ÷ 2 times higher than that of wood. Elastic modulus of the two was similar, which makes them commonly used in foundations. After being compounded, compressive strength improved. After being combined with glued bamboo, it increased by 1,26 ÷ 32,05 %, and it increased by 0,80 ÷ 45,86 % with reconsolidated bamboo. Bamboo-wood composites have high strength and good ductility, which can meet engineering requirements.