A method includes forming a cutout in a bamboo pole, the cutout having a non-uniform perimeter, and in which the perimeter increases towards a region of the bamboo pole where fibers of the pole are stronger than other regions of the bamboo pole.

The present invention provides a construction system for connecting bamboo segments or poles together, where the segments or poles have non-uniform diameters. The system includes elbow connectors, sleeve connectors, T-shaped connectors and six cavity connectors. Also, part of the connectors include connector segments including an opening defined by a plurality of opposingly located arms separated by one or more channels, and at least one hoop-compression clamp adapted to be positioned around the arms. The arms and hoop-compression clamp cooperate to compress the arms against the bamboo segment to secure bamboo segment within the connector opening.

A cylindrical sleeve-type steel-wood composite joint includes fiberglass reinforced panel (FRP) cylindrical wood columns, X-shaped wood beams, a key connecting component, arc connecting pieces and splicing outer ring plates. The key connecting component consists of upper and lower cylindrical steel sleeve plates, a connecting sleeve, a cylindrical solid wood and filling wood blocks. The FRP cylindrical wood columns are connected to the key connecting component and are inserted into the key connecting component through the cylindrical steel sleeve plates and penetrative steel bars. The X-shaped wood beams are connected to the key connecting component through the arc connecting pieces, and the splicing outer ring plates are fixed with bolts to realize combination and connection. By adoption of the design of the connecting sleeve, the joint has a high bearing capacity, vertical force transfer is guaranteed, operation is easy, and assembly is fast.

A cylindrical sleeve-type steel-wood composite joint includes fiberglass reinforced panel (FRP) cylindrical wood columns, X-shaped wood beams, a key connecting component, arc connecting pieces and splicing outer ring plates. The key connecting component consists of upper and lower cylindrical steel sleeve plates, a connecting sleeve, a cylindrical solid wood and filling wood blocks. The FRP cylindrical wood columns are connected to the key connecting component and are inserted into the key connecting component through the cylindrical steel sleeve plates and penetrative steel bars. The X-shaped wood beams are connected to the key connecting component through the arc connecting pieces, and the splicing outer ring plates are fixed with bolts to realize combination and connection. By adoption of the design of the connecting sleeve, the joint has a high bearing capacity, vertical force transfer is guaranteed, operation is easy, and assembly is fast.

A construction system for connecting bamboo segments or poles together, where the segments or poles have non-uniform diameters. The system includes elbow connectors, sleeve connectors, T-shaped connectors and six cavity connectors. Also, part of the connectors include connector segments including an opening defined by a plurality of opposingly located arms separated by one or more channels, and at least one hoop-compression clamp adapted to be positioned around the arms. The arms and hoop-compression clamp cooperate to compress the arms against the bamboo segment to sec1n-e bamboo segment within the connector opening.

A composite reinforced, optionally treated, wood stud for permanent wood foundations, above ground walls, floor joists, vertical support columns or headers for commercial and residential buildings has a first lumber section having a width and a depth and a second lumber section inverted with respect to the first lumber section having a width and a depth. A plurality of adjacent, aligned in a longitudinal row, mechanical fastening dowels angularly pass through the depth of the first lumber section and pass substantially through the width of the second lumber section. The dowels maintain a spatial relationship between the first and second lumber sections. The angularity of the dowels alternate vertically oppositely between adjacent dowels. From an end view, the dowel alternate in a cant relationship with adjacent dowels in a left and right manner.

A method includes forming a cutout in a bamboo pole, the cutout having a non-uniform perimeter, and in which the perimeter increases towards a region of the bamboo pole where fibers of the pole are stronger than other regions of the bamboo pole.

This invention provides connector assemblies comprising at least two connector elements pivotally joined to each other, wherein each connector element is configured for attachment to a natural tree pole such as bamboo. Useful connector elements include members configured to conform the surface of a natural tree pole. Useful connector elements include terminal connector elements configured for attachment to the terminal end of a natural tree pole and side connector elements configured for attachment to the side of a natural tree pole.

A timber structural member includes: a first timber round having a first cooperating longitudinal surface, a second timber round having a second and a third cooperating longitudinal surfaces, and a third timber round having a fourth cooperating longitudinal surface. The first cooperating surface cooperates with the second cooperating surface, and the third cooperating surface cooperates with the fourth cooperating surface. The timber rounds are secured together to form a structurally integral unit in which the first cooperating surface is in contact with the second cooperating surface, and the third cooperating surface is in contact with the fourth cooperating surface, and the first, second and third timber rounds are substantially parallel to each other. The timber rounds are secured to each other by a plurality of spaced fasteners provided at acute and obtuse angles from a longitudinal axis of the structural member and extending through the timber rounds.

A timber structural member includes: a first timber round having a first cooperating longitudinal surface, a second timber round having a second and a third cooperating longitudinal surfaces, and a third timber round having a fourth cooperating longitudinal surface. The first cooperating surface cooperates with the second cooperating surface, and the third cooperating surface cooperates with the fourth cooperating surface. The timber rounds are secured together to form a structurally integral unit in which the first cooperating surface is in contact with the second cooperating surface, and the third cooperating surface is in contact with the fourth cooperating surface, and the first, second and third timber rounds are substantially parallel to each other. The timber rounds are secured to each other by a plurality of spaced fasteners provided at acute and obtuse angles from a longitudinal axis of the structural member and extending through the timber rounds.