A tie hoop untying prevention device of the present invention may comprise: a body part provided in a shape of surrounding the outer side surface and the upper and lower surfaces of a tie hoop and coupled to the tie hoop; a pair of extension parts provided at opposite ends of the body part, respectively, and formed in directions different from each other; separation preventing parts provided on both side surfaces of the body part, respectively, to prevent separation of the tie hoop; and a tying part provided at each of the corners of the body part to prevent vertical and outward movements of the tie hoop when being coupled to the tie hoop.

A pre-fabricated reinforcement cage structure and a method of hoisting and assembling the same are provided. The pre-fabricated reinforcement cage structure comprises: a pre-fabricated reinforcement cage, a plurality of couplers, and a first rebar-mounting frame. The first rebar-mounting frame comprises a first top, a first bottom plate and a first lateral plate. The first top has a plurality of notches formed along an edge of the first top plate, and each of the plurality of the notches is configured to receive a first end portion of the corresponding one of the plurality of rebars in the pre-fabricated reinforcement cage. A first end portion of each of the plurality of rebars abuts against a first top surface of the first bottom plate. Each of the first top plate and the bottom plate is connected to the first lateral plate.

A method of installing a vertical reinforcing bar in a masonry wall includes constructing a base portion of the masonry wall, positioning a vertical holster within the base portion, stacking concrete masonry units above the base portion to form a vertical core within the concrete masonry units that is aligned with the vertical holster, and lowering the vertical reinforcing bar through the vertical core and the opening of the upper portion of the vertical holster until the leading end of the vertical reinforcing bar is secured to securing means of the vertical holster.

A method for securing rebar prior to concrete pour consists of tying, by hand in a series of unique steps, a piece of wire with 2-inch loops on either end around the rebar at joints where the rebar sections come together. The present method is used in place of a mechanical system as required in the prior art and requires no tools or other devices. Execution of the present method is up to 7 times faster and results in a stronger tie than other tying methods. The present method provides substantial savings in manpower and time on any application requiring reinforced concrete.

The present invention relates to a wall structure and, more specifically, to a wall structure for forming a wall support, wherein a plurality of steel wires are formed to extend vertically and horizontally to form a lattice-shaped steel wire mesh part, identical steel wire mesh parts are formed at corresponding locations to make truss-type steel wire trusses be positioned perpendicularly to each other, which are assembled by fixing wires without a bonding means to form the wall structure, and a steel wire mesh part connection pin is used to couple a wall structure to additional wall structure located at a lateral side or upper side thereof.

A rebar construction and transportation system includes a plurality of rebar members. A jig is provided. Each of the rebar members is positioned in the jig to retain each of the rebar members in a selected pattern. A plurality of first couplers is each removably coupled to an associated one of the rebar members. Each of the first couplers may be selectively coupled to a crane to transport the rebar members. A plurality of second couplers is provided. Each of the second couplers is selectively positioned in an open position and a closed position. Each of the second couplers is positioned around an associated one of the rebar members when the second couplers are positioned in the closed position. Each of the second couplers engages the jig such the jig is retained at the selected point on the rebar members.

A pocket former may include a pocket former body, the pocket former body having an outer surface. The pocket former may further include a collapsible element, the collapsible element formed on the outer surface of the pocket former body. The collapsible element may extend radially outwardly from the pocket former body.

A pocket former may include a pocket former body, the pocket former body having an outer surface. The pocket former may further include a collapsible element, the collapsible element formed on the outer surface of the pocket former body. The collapsible element may extend radially outwardly from the pocket former body.

Rebar-based support assemblies that can be fabricated without the need for on-site welding. The assemblies include a number of differing sized and shaped crimps used in place of welds to provide rebar assembly-to-rebar assembly connections. In some examples, a crimp for mechanically joining rebar for use in a support system for a physical structure includes a body with at least two recessed surfaces each configured for receiving a respective first and second piece of rebar; and a pair of spaced-apart arms at least partially enclosing an interior space of the body including the at least two recessed surfaces, a first tip and a second tip of the respective spaced-apart arms each defining a respective first and second opening to the interior space, in a first configuration.

A wind turbine tower that may be assembled fast, including a nacelle and a rotor, the tower comprising at least two stackable annular sections made of concrete connected through a main connecting arrangement adapted to withstand loads induced by the wind turbine rotor, and an auxiliary connector.