A construction system includes a set of constituent elements, at least one of which includes at least two superimposed folds each including at least two wooden structural boards. In this system, at least two constituent elements are fixed together by a non-adhesive fixing device and at least two adjacent folds are held against each other by non-adhesive holding device. The faces in contact with two structural boards are at least partially provided, at their contact interface, with a set of grooved patterns arranged so as to prevent the structural boards from sliding one relative to the other along at least one first immobilisation axis. A method for manufacturing such a construction system is also disclosed.

A method of drying sticks, a related apparatus, resultant product and its uses where the method involves presenting a plurality of sticks in parallel as a single layer, pressing each stick with a bank of pressing members on and/or into at least one face of the sticks, each with plurality of protuberances, thereby to constrain the sticks against crook, and drying the sticks when so constrained. Preferably each bank of pressing members is an underside of a frame or lattice of a stack of such frames or lattices able to receive such a single layer of sticks between adjacent overlying/underlying frames or lattices, the protuberances preferably being only downwardly directed.

Apparatus for producing wooden members for wooden trusses includes a control computer receiving a batch list, a series of infeed chutes for automatically transferring wooden members of different types to a conveyor, a scanner to detect defects, a defect saw for trimming such defects, a finger-jointer for joining wooden members end-to-end, a flying saw for cutting wood discharged from the finger-jointer, a cutting saw for cutting wooden members processed by the first flying saw into web member blanks, and a component saw for cutting angles on the ends of the web member blanks. The control computer analyzes the batch list for causing a first infeed chute to feed in wooden members of a first type sufficient to produce all web members formed from wood of the first type, and then causes a second infeed chute to feed in wooden members of a second type. A related method is also disclosed.

The present invention discloses an assembled bamboo sleeper, which is obtained by using a bamboo unit as a raw material, dried and modified at the temperature of 110-180° C., undergone coating treatment using a dopamine solution, adhesive dipping, curing and solidifying, assembling and gluing, further solidifying, further treatment using a dopamine solution, and anti-mildew and/or anti-corrosion and/or anti-insect treatment, and then fastened. The present invention further provides a preparation method for the foregoing bamboo sleeper. The bamboo sleeper prepared in the present invention is green and environmentally friendly, and applicable for ballasted tracks of railways and urban rail transit systems.

A wood laminated construction element includes a wooden surface piece and a wooden bonded body. The wooden surface piece has a natural wood grain in a first wood grain direction, and includes two end segments and a connection segment disposed between the end segments. The wooden bonded body includes at least an end wood piece and at least a connection wood piece. The end wood piece is adhered to one of the end segments, and has a natural wood grain in a second wood grain direction transverse to the first wood grain direction. The connection wood piece is adhered at least to the connection segment, and has a natural wood grain in a third wood grain direction which is consistent with the first wood grain direction.

A cross-laminated timber processing equipment comprises a longitudinal board loading mechanism, a transverse board loading mechanism, an adhesive spraying mechanism, laying cars, presses, a transfer car, and an unloading car. The longitudinal board loading mechanism lays longitudinal boards on a laying car at an assembly station, and the transverse board loading mechanism lays transverse boards on the laying car. The longitudinal boards and the transverse boards are perpendicularly and alternately laid layer by layer. The adhesive spraying mechanism is provided above the assembly station, and sprays an adhesive on the upper surfaces of assembled boards. The transfer car moves back and forth between a conveying station and an idle press through the assembly station, carries the laying cars and the assembled boards, and feeds the laying cars and the assembled boards into the presses for compaction. The unloading car moves back and forth between a press completing compaction and an unloading station, and conveys an idle laying car to the assembly station. Compared with other international similar equipment, this equipment can implement fully-automatic cross-laminated timber processing and production, and has low apparatus cost, high production capacity, high processing efficiency, and a great leading advantage.

A process for manufacturing wall elements from nailable and/or stapleable materials, in which a wall element frame is positioned on a horizontal worktable. Wall panels are placed on the frame and the wall panels are fastened to the frame by nails and/or staples, which are driven by a compressed air setting device. A mobile robotin particular an autonomous mobile robothas a compressed air setting device and/or at least one milling unit and is movable on the surface formed by the wall panels. The robot motion is automatically controlled along the surface formed by the wall panels. At predetermined positions, the milling unit and/or the compressed air setting device is actuated to process the wall panels and/or to fasten them to the wall element frame.

A cross-laminated timber processing equipment comprises a longitudinal board loading mechanism, a transverse board loading mechanism, an adhesive spraying mechanism, laying cars, presses, a transfer car, and an unloading car. The longitudinal board loading mechanism lays longitudinal boards on a laying car at an assembly station, and the transverse board loading mechanism lays transverse boards on the laying car. The longitudinal boards and the transverse boards are perpendicularly and alternately laid layer by layer. The adhesive spraying mechanism is provided above the assembly station, and sprays an adhesive on the upper surfaces of assembled boards. The transfer car moves back and forth between a conveying station and an idle press through the assembly station, carries the laying cars and the assembled boards, and feeds the laying cars and the assembled boards into the presses for compaction. The unloading car moves back and forth between a press completing compaction and an unloading station, and conveys an idle laying car to the assembly station. Compared with other international similar equipment, this equipment can implement fully-automatic cross-laminated timber processing and production, and has low apparatus cost, high production capacity, high processing efficiency, and a great leading advantage.

The present disclosure provides a method of forming a laminated wood product, which is adapted for receiving a load in a direction perpendicular to a principal fiber direction of the wood. The method comprises cutting a log (2) along the principal fiber direction of the log, into a plurality of wood lamellae (20a, 20b), such that the wood lamellae are formed as radial sections of the log, forming the wood lamellae (20a, 20b) to provide each wood lamella with a trapezoidal cross section, whereby the wood lamellae present a respective planar major base surface (bs1) that is formed at a radially outer part of the log (2) and a respective planar minor base surface (bs2) that is formed at a radially inner part of the log (2), arranging the lamellae (20a, 20b) as at least one layer in which planar major base surfaces (bs1) of immediately adjacent lamellae (20a, 20b) face opposite directions, and gluing together the lamellae (20a, 20b) side surface to side surface (ss1, ss2) such that a wood billet is formed. The method further comprises arranging the wood lamellae (20a, b) such that the major base surfaces (bs1) of immediately adjacent wood lamellae taper in opposite directions, and the gluing comprises wet gluing.

A cross-laminated timber (CLT) panel formed of multiple layers of alternating perpendicularly aligned lumber, where one or more portions of one or more inner layers are selectively removed and where one or more layers have a thickness different than one or more other layers of the CLT panel. Further, a system for optimizing the CLT panel by determining the design for the selective removal of one or more portions of one or more inner layers and, optionally, one or more varying layer thicknesses, provides a CLT panel with an improved stiffness to weight ratio and reduced material consumption.