An anchor for being embedded in concrete for attachment to a fastener to support a load comprises a plug having a main body portion extending upwardly from a base portion, the plug for being attached to a form board prior to pouring of concrete, the plug having an end portion disposed a distance from the form board; and an anchor body attached to the end portion. The plug is separable from the anchor body and removable from the concrete after the concrete is cured, leaving the anchor body embedded in the concrete, the plug providing a void in the concrete after removal to provide an access opening for a threaded portion of a fastener to attach to the anchor body.

A shear connector for use with insulated concrete panels. The shear connector comprises an elongated core member that includes a first end and a second end, and a flanged end-piece removably secured to one of the first end or the second end of the core member. At least a portion of the flanged end-piece includes a maximum diameter that is larger than a maximum diameter of the core member. The shear connector is configured to transfer shear forces.

A construction module for a structure, comprising: a formwork member that includes a base, a pair of parallel side walls that extend upwardly from the base, and a pair of parallel end walls. The base, the side walls and the end walls define a cavity for reinforcement and concrete. A reinforcement member includes an upper portion and a lower portion. When the reinforcement member is located in the cavity and concrete fills the cavity, the lower portion of the reinforcement member and the concrete define an elongate beam.

A method is provided for jointing a concrete column and an iron beam. A structure joint portion is provided between a column-beam junction and an end of the iron beam, which is mounted on a cogging provided to the column. Prestressing tendons are arranged in plural rows to horizontally penetrate the column-beam junction. Tension-introduction forces are applied to the prestressing tendons to tensionally anchor an anchor plate, and thereby to integrally joint the column and the beam.

The invention relates to a method for erecting a structure 0 comprising at least two prefabricated concrete elements 1, 2, the method comprising: installing a first concrete element 1; placing a second concrete element 2 with at least one spacer 4 maintaining a gap between respective end faces 104, 203 of the first element and second element; tensioning at least one bar 105, 3 held on the first and second elements and passing through the gap maintained by the spacer, and introducing a hardenable interface product 5 into said gap. The method thus makes it possible to move off the critical path relating to the erection the need to wait, between two assembly operations, for the joints between the assembled pieces to have hardened. Incidentally, a significant reduction in the time taken for erecting such a structure is obtained.

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 having 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 prong is configured for use with a concrete reinforcement element and includes first and second legs positioned opposite first and second sides of the prong and a bridge portion connecting distal ends the legs, where the bridge portion forms a first end of the prong. The legs extend from the bridge portion to a second end of the prong opposite the first end, and each of the legs has a proximal end at the second end of the prong. The proximal end of the first leg is bent toward the second leg, and the proximal end of the second leg is bent toward the first leg, such that the proximal ends of the legs overlap each other. Inner surfaces of the proximal ends of the legs define engagement surfaces configured to engage a tie wire, enabling the proximal ends to be connected to the tie wire.

The reinforced concrete beam with a corrugated web reinforcement plate uses a web reinforcement plate for reinforcing deep and shear critical concrete beams. A corrugated plate is embedded in the concrete beam, where the corrugated plate has a top edge with a periodic shape and a bottom edge with a periodic shape. The periodic shape of the top edge has a larger wavelength than a wavelength of the periodic shape of the bottom edge. The corrugated plate may have a plurality of openings formed therethrough. A plurality of pipes may be received by, and pass through, at least a portion of the plurality of openings formed through the corrugated plate. Each of the pipes may have a pair of obliquely angled open ends such that the planes defining the open ends are normal to the top and bottom faces of the concrete beam.

In one aspect, a reinforcing assembly includes multiple longitudinally-extending support bars that are connected together and multiple working members each independently connected to one or more of the support bars. The working members are oriented diagonally with respect to a longitudinal axis extending along the support bars. Each working member includes a downwardly-extending side and a hooked or bent portion at an end of the downwardly-extending side. In another aspect, a reinforcing assembly includes one or more longitudinally-extending bars each configured to provide structural reinforcement within a structure. The reinforcing assembly also includes multiple working members each independently connected to at least one of the one or more bars. The working members are oriented diagonally with respect to a longitudinal axis extending along the one or more bars. Each working member includes a downwardly-extending side and a hooked or bent portion at an end of the downwardly-extending side.

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 having 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.