A steel plate built-up beam for a steel-concrete composite beam, which is for the purpose of forming a steel-concrete composite beam by filing the inside thereof with concrete, includes: a pair of web plates spaced apart from each other; a lower flange provided on the lower portions of the web plates so as to connect the lower portions of the pair of web plates; and upper angles provided on the upper portions of the web plates, respectively, such that one leg of the upper angle is coupled to side surfaces of the web plates, and other leg of the upper angle is formed to bend in directions perpendicular to the web plates.

The disclosure presents a composite conduit formwork structure which includes a cylindrical outer casing adapted to bond with a cylindrical inner casing which are maintained at a fixed distance apart by a plurality of radial stanchions. The inner casing and outer casing form an interior void which is filled with concrete during manufacture. The outer casing and inner casing remain in place to protect the structure once completed. A novel method of assembly is also provided whereby radial stanchions are rotated between the outer casing and inner casing. All of the components in a preferred embodiment are formed of a fiberglass material.

A tool for manufacturing of a reinforcement bar structure, wherein the tool comprises a main body, a jaw arrangement, a tying device and an arrangement configured for moving the jaw arrangement between a gripping state and a tying state. A system for manufacturing a reinforcement bar structure, wherein the system comprises a supply of reinforcement bar material, a bending apparatus, a holding apparatus and a group of robots wherein at least one robot of the group of robots is equipped with the tool for manufacturing a reinforcement bar structure. A method for transporting and attaching a reinforcement bar during manufacturing of a reinforcement bar structure using a tool comprising a main body, the method comprising gripping a reinforcement bar, tying together the reinforcement bar with another reinforcement bar by looping a wire around the reinforcement bars, tightening the wire around the reinforcement bars, forming a knot, and cutting the wire.

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 binding structure for attaching two structures to each other, said binding structure comprising an elongated body portion having a first end portion and a second end portion. A head portion is provided in the first end portion and in the second end portion, wherein said head portion protrudes radially from (at least a portion of) the body portion.

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.

The present disclosure relates to formwork. In a particular form the present disclosure relates to lost column formwork. In one aspect, there is provided a lost column formwork shell portion comprising an elongate body comprising a generally u-shaped cross-section shape comprising a pair of lengthwise extending edges, an inner side and an outer side, and at least one spacer element depending from the inner side of the shell portion and projecting inwardly. In a further aspect, there is provided a lost column formwork shell assembly comprising a pair of shell portions joined along their lengthwise extending edges. In a further aspect, there is provided a lost column formwork assembly a shell assembly, bracing and reinforcement. The lost column formwork assembly ensures that the required axis distance is maintained across its length, is braced against bulging under the hydrostatic pressure of concrete filling, and is quicker and easier to assemble than commonly known alternatives.

A reinforcement element for a diaphragm wall including a reinforcement cage, the reinforcement element further including a seal-carrier provided with a mounting part for receiving at least one seal, which is elongated, the seal-carrier being fixed to the first end part of the reinforcement cage and extending along the longitudinal direction of said reinforcement cage, the seal-carrier defining a housing for receiving the seal, at least a first part of which is surrounded by a sacrificial material.

The disclosure presents a composite conduit formwork structure which includes a cylindrical outer casing adapted to bond with a cylindrical inner casing which are maintained at a fixed distance apart by a plurality of radial stanchions. The inner casing and outer casing form an interior void which is filled with concrete during manufacture. The outer casing and inner casing remain in place to protect the structure once completed. A novel method of assembly is also provided whereby radial stanchions are rotated between the outer casing and inner casing. All of the components in a preferred embodiment are formed of a fiberglass material.

A combined structure of the combined bundle of columns in the column includes a plurality of main steel bars, a one-drawing consecutive stirrup, and a plurality of tie bars. The plural main steel bars are arrayed to form an inner confined region and an outer confined region surrounding the inner confined region. Further, the one-drawing consecutive stirrup proceeds with a one-drawing consecutive turning and surrounding along the inner confined region and the outer confined region, and surrounds a region in the one-drawing consecutive stirrup of the inner confined region so as to form a column core. As such, a complete confinement can be provided for the main steel bars, so as to effectively prevent the main steel bars from buckling, such that the performance of seismic resistance for the columns can be enhanced.