Bamboo elements as load-bearing components and t-beam element as ceiling element, and method for producing a bamboo blank

Ceiling or wall element (62, 64, 66, 68)

• characterized in that
• the ceiling or wall element (62, 64, 66, 68) comprises a plurality of bamboo layers (10, 12, 44, 46) comprising a plurality of bamboo blanks arranged side by side parallel to the fibres, and/or
• cross-laminated timber elements (38, 47, 52, 54) comprising a plurality of stacked and bonded bamboo layers, and/or
• a sandwich panel (56) comprising an insulation layer arranged between a bamboo layer, a cross-laminated timber element, or a combination thereof, wherein the plurality of bamboo layers or cross-laminated timber elements are bonded together and define a main plane directed by their bamboo lamellae, wherein the ceiling or wall element (62, 64, 66, 68) comprises one or more ribs (72),
• wherein the ribs (72) are optionally arranged parallel to the orientation of the bamboo lamellae of the plurality of bamboo layers or cross-laminated timber elements, wherein the ceiling or wall element (62, 64, 66, 68) has a width between 600-2000 mm, a thickness between 100-400 mm, and a length between 2000-18000 mm.

Method for producing a bamboo blank (28, 30, 31, 42), a bamboo rod (6, 8, 48, 50, 51, 51A), a beam element (81), a T-beam element (82, 83), a double T-beam element (84, 85), a bamboo layer (10, 12, 44, 46, 47), a cross-laminated timber element (38, 52, 54, 56), a ceiling element (62, 64, 66, 68, 86, 87), and/or a wall element (62, 64, 66, 68),

• characterized in that
• the method comprises the following steps:
• Providing a plurality of bamboo lamellae from a giant bamboo species, wherein the bamboo lamellae have a thickness (d) of at least 5 mm,
• gluing the plurality of bamboo lamellae (4) parallel to each other, wherein the gluing is performed under a pressure of 0.05-1.5 N/mm2 to produce a bamboo blank,
• optionally bonding the bamboo blanks to larger structural elements with tongue and groove connections, bonding parallel to the fiber direction, and/or cross-bonding, optionally with staggered tongue and groove joints.