Various embodiments of the present disclosure provide a cast-in-place concrete slab load transfer apparatus and method of manufacturing same. In various embodiments, the concrete slab load transfer apparatus includes a plurality of load transfer dowels each having a top surface and a bottom surface, a basket supporting the load transfer dowels, and a plurality of welds including a plurality of breakable welds connecting the bottom surfaces of the load transfer dowels to the basket.

A wind turbine foundation comprising a concrete support slab having a horizontal rebar grid therein, a concrete pedestal integral with the support slab and having vertical post tensioning elements therein and a plurality of concrete ribs on top of and integral with the support slab and integral with the pedestal, the ribs having rebar therein and extend outwardly from the pedestal, the pedestal, slab and ribs are connected to each other to form a monolithic foundation. 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 building based on a large-space structure body and a freestanding external envelope structure and a construction method, wherein the building comprises a structure body composed of a vertical-structure reinforced concrete member, a reinforced concrete girder and a reinforced concrete slab, and a freestanding combined external envelope system externally hung in a periphery of the structure body; and the structure body is made of a prefabricated combined reinforcement cage member poured with concrete, the prefabricated combined reinforcement cage member is combined and assembled by a prefabricated vertical-structure reinforcement cage member, a prefabricated girder reinforcement cage member and a prefabricated slab reinforcement cage member, and the prefabricated vertical-structure reinforcement cage member is a prefabricated shear wall reinforcement cage member or a prefabricated column reinforcement cage member.

Systems for reinforcement of structural elements such as piles, posts, pillars, and pipes are disclosed. The present invention features reinforced structural elements. The reinforced structural elements may include a sleeve structure positioned around a length of the structural element such that there is a chamber between the structural element and the sleeve structure. This chamber may be filled with concrete or another core filler material so as to reinforce the structural element. The sleeve structures of the present invention may be formed by the assembly of multiple staggered segmented layers of coupled reinforcing shells such as rigid, semi-rigid, or flexible fiber-reinforced shells.

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 computer-implemented method designs a tying bar enclosing a plurality of concrete-reinforcing bars in a 3D scene of a computer-aided design system. The method a) provides the three-dimensional models of the concrete-reinforcing bars to be enclosed by the tying bar; and b) computes a set of traces of each of the concrete-reinforcing bars. Each trace has a trace center. Next a set of connection lines is computed. Each connection line binds the trace centers. A set of circular arcs is computed. Each circular arc surrounds at least partially a respective trace, and a set of segments. Each segment is approximately parallel to a respective connection line and connects consecutive circular arcs. The segments and circular arcs form a center curve of the tying bar in the sketch plane. Lastly, the tying bar is designed based on the center curve and the bar radius of the tying bar.

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.

BMASS rebar is disclosed herein that is useful for reinforcing structural support elements. BMASS (Braided Multi-Axial Sleeve System) rebar has a substantially solid configuration that includes a concrete core and a flexible, multi-axially braided reinforcement sleeve enclosing the concrete core, which provides sufficiently rigid, yet flexible rebar. The BMASS rebar does not contain polymer resins that would otherwise interfere with flexibility. The BMASS rebar can be utilized in structural support elements to support a wide variety of structures. BMASS rebar can constructed entirely of non-corrosive materials, therefore eliminating the possibility of corrosion. The BMASS rebar can be manufactured inexpensively and can be made in many different configurations. A BMASS rebar fabrication method can provide a quick, safe, low-cost, and simpler method to manufacture BMASS rebar on the jobsite. BMASS rebar offers many advantages over the steel rebar typically used for structural support of concrete structures.

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.