The accessory attachment structure for attaching an accessory to a steel plate-reinforced concrete structure, the steel plate-reinforced concrete structure being provided with a steel plate frame, bars fixedly installed on an inner face of an outside steel plate, and concrete, the accessory attachment structure includes an attachment plate in which one face thereof is attached to the outside steel plate and the accessory is attached to the other face thereof. The size of the other face of the attachment plate is larger than that of a whole attachment face to be attached to the attachment plate of the accessory, the size if the one face is equal to or greater than the other face, and the length of the attachment plate in any direction along the one face of the attachment plate is at least two times greater than a mutual interval between the bars.

Disclosed is a method for preparing a concrete-filled steel tubular edge-constrained laminated shear wall, belonging to the field of prefabricated buildings. The method allows for integrated hoisting during installation, leading to a simple working procedure and easy quality control. During manufacturing, an interior wythe board is flipped and placed on supporting members on rectangular steel tubes, no cavity formwork or bracket is needed in a cavity, and thus an operation of pulling out the cavity formwork is avoided, and high production efficiency is achieved. The rectangular steel tubes can be welded to horizontal steel bars of interior and exterior wythe boards, avoiding the cumbersome working procedure and high cost caused by stud connection while achieving reliable connection and direct force transmission.

Structures for forming a module, such as a module for use in a nuclear reactor building, and associated systems and methods are described herein. A representative structure can include a first plate, a second plate spaced apart from and positioned parallel to the first plate, and a support assembly positioned between the first and second plates. The support assembly can include a column, a first beam extending from the column parallel to the first and second plates, and a second beam extending from the column parallel to the first and second plates. The panel structure can further include a plurality of spaced apart joint plates extending between and connecting the first and second plates. The joint plates can support the first beam and the second beam. The panel structure can further include a fill material between the first and second plates and surrounding the support assembly and the joint plates.

A modular building formwork apparatus includes a formwork wall and at least one interlocking device. The formwork wall includes a wall plate and a frame disposed on the wall plate. The frame has an aligning hole and a locking hole. The interlocking device includes a housing unit, a rotation transferring unit, a transmitting unit and a locking member. The rotation transferring unit has an input shaft and an output shaft. The transmitting unit is movable relative to and rotatable about the output shaft. The locking member has a head portion, a positioning portion and a threaded portion. The locking member is insertable into the aligning hole to permit the threaded portion to threadedly engage in the locking hole.

Provided are a highly durable textile reinforcing panel used as a concrete form and a method for constructing a reinforced concrete structure using the same. The highly durable textile reinforcing panel is configured to resist a lateral pressure caused due to a self-load of concrete which is not cured during construction and function as a structure reinforcing material by being integrated with concrete cured after the construction, is integrated with the concrete structure via a textile shear connector formed on a highly durable concrete panel, and allows a lattice-shaped reinforcing material to remarkably increase flexural strength of the highly durable concrete panel, and thus a flexural strength of the entire concrete structure is remarkably increased when the highly durable textile reinforcing panel used as a concrete form is structurally integrated with the concrete structure.

Provided are a highly durable textile reinforcing panel used as a concrete form and a method for constructing a reinforced concrete structure using the same. The highly durable textile reinforcing panel is configured to resist a lateral pressure caused due to a self-load of concrete which is not cured during construction and function as a structure reinforcing material by being integrated with concrete cured after the construction, is integrated with the concrete structure via a textile shear connector formed on a highly durable concrete panel, and allows a lattice-shaped reinforcing material to remarkably increase flexural strength of the highly durable concrete panel, and thus a flexural strength of the entire concrete structure is remarkably increased when the highly durable textile reinforcing panel used as a concrete form is structurally integrated with the concrete structure.

A pre-engineered metal skeleton for the reinforcement of a concrete structure comprises a plurality of elongated primary beams and a plurality of interconnecting members each formed from flat sheets of metal. The interconnecting members frictionally interlock with co-operating receiving portions formed on the primary beams to thereby secure the primary beams and the interconnecting members one to the other without requiring supplemental fastening means. The plurality of interconnecting members have both their major axis and their minor axis oriented substantially transversely to the major axis of the elongated central main body portion of the primary beams.

A formwork stud system includes a plurality of studs, a top channel, a bottom channel and a plurality of horizontal and vertical rebars. At least one of the plurality of studs is a formwork stud. The formwork stud includes a web and a pair of flanges. The web has opposed side portions extending from the top of the formwork stud to the bottom of the formwork stud and a plurality of lateral spaced apart connectors extending between the opposed side portions. The opposed side portions and the lateral spaced apart connectors define a plurality of spaced apart holes. The holes are configured to allow concrete to flow therethrough. The pair of flanges extend generally orthogonally from the opposed side portions of the web.

Disclosed is an economical and effective way of producing a modular retaining wall for a material to be retained, using only blocks which in and of themselves are of insufficient thickness to function as retaining wall blocks. The modular wall includes backer blocks and facing blocks which are connected by separate connectors in a back to back, spaced apart arrangement, thereby forming a hollow retaining wall. The hollow wall is filled with loose filler material to increase the mass and retaining capacity of the wall. None of the wall components is embedded in the material to be retained. Further disclosed are wall components and a wall kit for a modular retaining wall. A double sided decorative wall is also disclosed. The modular wall system allows for the construction of retaining walls and freestanding, double sided, decorative walls forming both straight and curved walls.

The insulating concrete form system includes longitudinal and corner block assemblies each having a pair of side panels configured with tie receivers interacting with panel spacing ties to hold the side panels in an opposing manner and leading edges with an alternating arrangement of projections and recesses for interlocking with neighboring block assemblies. Each panel spacing tie includes a mid-support section interposing in between and connecting to a pair of end sections by a living hinge with each end section being configured with a flange member for placement within an opposing spatial wedge of the tie receiver, whereby the living hinge possesses the capability of allowing the side panels to move inwardly toward one another in a racked position to yield compactness of the longitudinal block assembly for economical transport. The corner block assembly also includes corner panel spacing ties to supplementally reinforce its structure to withstand hydrostatic blowout caused by poured concrete.