Laminated wood tower including a plurality of curved modules attached to each other, where each curved module includes a plurality of layers, where each layer includes a plurality of laminated plies, and where a layer includes a first set of plies, where the first set of plies includes a plurality of plies arranged adjacent each other and where the wood grain is directed in a first direction, and a second set of plies, where the second set of plies includes one or more plies arranged adjacent each other and where the wood grain is directed in a second direction, where the first direction is perpendicular to the second direction. The advantage is that a self-supporting laminated wood tower can be obtained in an easy and cost-effective way.

A connection device may include a first side support, a second side support opposite the first side support, a first guide and a second guide opposite the first side support. The first guide and second guide connect the first side support to the second side support. The first guide, second guide, first side support and second side support define at least one cavity shaped to accept an upright beam. A plate may extend between the first side support, the second side support, the first guide and the second guide, in which case the plate, first guide, second guide, first side support and second side support define two cavities shaped to accept two upright beams. One or more of the first guide, second guide, first side support and second side support may include a plurality of side attachments that define side connection area(s) shaped to accept a lateral beam(s).

A roof structure supporting a roof comprising a truss and a joist supporting the truss, the joist having two elongated wooden beam members on the bottom of the truss connected with beam tie members comprised of a pair of congruent truncated mirror image parallelograms forming hexagons with mutually facing and abutting portions. Each beam tie member is connected to outer sides of top and bottom elongated wooden beams and is adjacent to the next beam tie connected to outer sides of top and bottom elongated wooden beams. The tied beams allow use of smaller, less expensive beam members yet providing good truss support in a joist.

A connection is formed between a held member and a holding member with the use of a connector and one or more fasteners. In one aspect, the connector has a main body that has integral nail prong fasteners. In one aspect, the main body of the connector is attached to the held and holding members by means of double-shear fastening. In one aspect, the main body is formed with a bendable end flange to attach the connector to the holding member. In one aspect, the main body is formed with a nail guide for directing the fastener at an angle to the main body.

A hollow elongate building element (1) made of composite wood is described. It has a polygonal peripheral structure (3) around the void. Each side of the polygonal peripheral structure (3) is formed of at least a pair of elongate strips (5) of triangular or trapezoidal cross section, which are juxtaposed and reversed relative to one another. The polygonal peripheral structure (3) also exhibits strip-form butting-together means (7, 9) in its corner regions. The various strips (5, 7, 9), which are obtained by radial cuts into logs, are bonded together.

Methods and processes for depositing a fire resistant barrier on a construction material involve coating exposed webbing of, for instance, an I-joist with a fire-resistant material using a wetting layer and a thickening layer. A time period between depositing the wetting layer and thickening layer is controlled to facilitate complete wetting of the exposed webbing. Filler such as fiberglass may be included in the thickening layer. The wetting and thickening layers may be deposited on the webbing in the same application. The construction material, such as the I-joist, may then be subjected to a curing treatment and additional curing period followed by coating the second side using a similar methodology.

A lumber assembly and finishing system for use in assembling constructs includes a lumber table configured to support arranged pieces of lumber. A press station presses nailing plates into the pieces of lumber to join the pieces of lumber together to form the lumber construct. A lumber construct transporter moves the arranged pieces of lumber from the lumber table to the press station while keeping the pieces of lumber in their arranged configuration.

A bar element as a construction element includes strips preferably produced from bamboo and is hollow at least in certain regions. The hollow interior is formed at least in certain sections as a hollow fillet achieved by a plastic and/or resin introduced into the bar elements, using a shaped body movable through the interior. Producing bar elements from interconnected strips ensures that although produced from a natural raw material, the bar elements have a reproducible outer cross section. Using a shaped body movable through the interior to produce the inner cross section also ensures a defined inner cross section of the bar elements, with the result that in turn connections between a plurality of bar elements that are defined by suitable connection elements can be formed. In this way, the bar elements make it possible to produce lattice works, grid constructions, frameworks or other desired structures and/or three-dimensional bodies.

The invention relates to a method for the cambering of a wooden element, comprising the steps of: cutting to form at least one incision in a surface of the wooden element; inserting an expansive material into the at least one incision of the wooden element; letting the expansive material expand in the at least one incision so that a cambering of the wooden element is achieved.

The invention relates to a method for the cambering of a wooden element, comprising the steps of: cutting to form at least one incision in a surface of the wooden element; inserting an expansive material into the at least one incision of the wooden element; letting the expansive material expand in the at least one incision so that a cambering of the wooden element is achieved.