A structure for supporting concrete reinforcement bars in an orthogonal relationship above a surface includes a base member having a central opening and first and second pairs of leg members extending upward at an angle from the base member on opposite sides of the central opening, wherein the first leg members are longer than the second leg members. Attached to shoulders of the first and second leg members are first and second cradles having opposing upper and lower sidewalls that form channels therebetween. The first and second cradles receive reinforcement bars that are retained within the cradles by retaining members protruding from the opposing sidewalls into the channels. A ridge extending from the base member has a central portion and first and second portions sloping down from the central portion toward the base member which form a channel for receiving a reinforcement bar. The structure also includes various upper and lower fillets and edge brace portions at various points on the upper and lower cradles, including fillets between the opposing upper and lower sidewalls and first and second leg members and edge brace portions between the outer edges and bottom edges of the opposing upper and lower sidewalls and first and second leg members.

A system including an insert including a body defining an inner cavity at a first end thereof. The insert includes an anchor having an opening formed therein, and the opening of the anchor is positioned in the inner cavity of the insert. The system further includes a spacer having a first end that is couplable to a second end of the insert to thereby adjust a height of the insert. The spacer is configured to be coupled to another spacer at a second end of the spacer.

A rebar positioner for being placed within an open core of a masonry block having an open core and an adjacent closed core separated by a web. A wire defines first and second laterally spaced-apart support elements adapted to extend over and be supported by the web of the block. End portions of the first and second support elements are adapted for extending into the enclosed core of the block. A rebar positioning segment defines at least one ring adapted for being positioned within the open core of the block and surrounding a section of vertically extending rebar positioned in the open core. The wire is bent such that the end portions of the first and second support elements are adapted for extending into the closed core at a level below an upper surface of the block and the at least one ring is adapted for extending into the open core at a level below the upper surface of the block.

A rebar positioner for being placed within an open core of a masonry block having an open core and an adjacent closed core separated by a web, and including a wire defining first and second laterally spaced-apart support elements adapted to extend over and be supported by the web of the block. Respective end portions of the first and second support elements are adapted for extending into the enclosed core of the block. A rebar positioning segment defines at least two rings adapted for being positioned in laterally spaced-part relation within the open core of the block and surrounding first and second sections of vertically extending rebar positioned in the open core. The wire forming the positioner is bent such that the end portions of the first and second support elements are adapted for extending into the closed core at a level below an upper surface of the block and the at least one ring is adapted for extending into the open core at a level below the upper surface of the block.

The present invention provides a system 10 for construction of formwork where a settable compound is pourable into a cavity in the formwork and retained by the formwork to set to form a completed structure. The formwork comprises structural panels 12, 14 connected by adjustable connectors 34 for varying the spacing between the panels.

A fixture for setting rebar at a predetermined distance from the rim of an excavated pit includes elongated first and second legs each having a proximal end and a distal end, the first and second legs rigidly joined at their mutual proximal ends to form an L-shape; an angle adjustment device carried by the first leg, comprising a foot movable towards or away from the first leg along an axis generally parallel to the second leg; a support bracket carried by the first leg at a predetermined offset distance from the proximal end thereof; and a hook extending from the distal end of the second leg, generally parallel to the first leg.

A fatigue resistant gravity based spread footing under heavy multi-axial cyclical loading of a wind tower. The foundation having a central vertical pedestal, a substantially horizontal continuous bottom support slab, a plurality of radial reinforcing ribs extending radially outward from the pedestal. The pedestal, ribs and slab forming a continuous monolithic structure. The foundation may have a three-dimensional network of post-tensioning elements that keep the structural elements under heavy multi-axial post compression with a specific eccentricity intended to reduce stress amplitudes and deflections and allows the foundation to have a desirable combination of high stiffness and superior fatigue resistance. The foundation design reduces the weight and volume of materials used, reduces cost, and improves heat dissipation conditions during construction by having a small ratio of concrete mass to surface area thus eliminating the risk of thermal cracking due to heat of hydration.

A clipping apparatus for holding rebar is disclosed. The clipping apparatus includes having a first base portion and a second base portion. Extensions and clips are positioned in the base portions to hold one or more rebar rods or wires in a stable orientation. Platforms are positioned to give a user a plane upon which to apply an engaging force to clip the rebar into the clipping apparatus. A chair arrangement is positioned to provide spacing between adjacent planes of rebar. A fluid-stop section is positioned about the first base portion and the second base portion. The fluid-stop section also includes a raised rim. Together with the base, platforms, and chair, the fluid-stop section to help prevent flow of liquid through the clipping apparatus.

A concrete spacer for use in supporting wire mesh for pouring concrete within a mold. The spacer includes a base portion and an arm portion to offer stability. The base portion is trapezoid shaped and includes a clip for attachment to the wire mesh. The arm portion offers stability and extends opposite the base portion for attachment to the wire mesh.

A reinforcement arrangement and a method for producing a construction material body using the reinforcement arrangement. The reinforcement arrangement comprises a reinforcement body and at least one holding anchor unit. Each holding anchor unit is arranged or attached at the reinforcement body by a foot section. A holding section adjoining the foot section is moveable between a storage position and a function position. In the storage position, the holding section extends directly adjacent along the reinforcement body and abuts the reinforcement body at one or more locations. In the function position, a free end of the holding section opposite the foot section is larger than in the storage position. The holding section can be moved manually or self-acting from the storage position into the function position. The reinforcement body, the holding section, and the foot section are preferably embodied as textile-reinforced elements.