An apparatus for connecting precast elements, wherein the apparatus includes a first part adapted for being cast into a first one of the precast elements, and the apparatus further includes a second part adapted for being cast into a second one of the precast elements, wherein the first part and the second part are arranged to receive a fastener for fastening the second precast element relative to the first precast element with the fastener crossing a joint between the precast elements at an angle to the joint.

A module for a paving or building system includes at least one block of concrete and a sheet, e.g., sheet metal, having a surface area abutting the block or blocks. The sheet includes multiple openings and one or more flaps of material from one or more from the openings may be bent or otherwise shaped to extend into a concrete block and anchor the sheet to the concrete block.

A PPVC connector is provided for joining a first PPVC (Prefabricated Prefinished Volumetric Construction) module and a second PPVC module. The PPVC connector is adopted for coupling or joining a first PPVC module and a second PPVC module together, comprising a first anchor for attaching to the first PPVC module; a second anchor for attaching to the second PPVC module; and a frame for coupling the first anchor and the second anchor together. The first anchor, the second anchor, the frame or a combination of any of these components comprise a plate having at least one side for attaching to one of the PPVC Module. Due to confinement effect, the first module and the second module are prevented from detachment so as to bind the first PPVC module and the second PPVC module together permanently to form a monolithic assemble.

Disclosed herewith a modular integrated building and a construction method thereof. The building comprises multiple prefabricated room units (1). A bottom of a load-bearing structure of the prefabricated room unit (1) is provided with a semi-prefabricated connecting port (2). Reinforcing bars arranged at a top of the prefabricated room unit (1) of a next floor are inserted in the connecting port (2) and thus connected with reinforcing bars arranged therein, so that the prefabricated room units (1) of two adjacent floors are connected with each other through in-situ casting concrete in the connecting port (2). A cast-in-situ concrete interlayer (3) is arranged on a top plate (11) of the prefabricated room unit (1) of a next floor, for connecting adjacent prefabricated room units (1) of a same floor together.

The present invention discloses a flexible connecting structure of a prefabricated component and a building main body. The flexible connecting structure comprises multiple layers of cast-in-situ building main bodies spaced up and down, a prefabricated component is connected between two adjacent cast-in-situ building main bodies, a tenon is provided at the lower end of the prefabricated component, a mortise matching the tenon is provided on the top surface of the cast-in-situ building main body, and the prefabricated component is socketed to the lower layer of cast-in-situ building main body by tenon-and-mortise cooperation; and a first flexible layer for reducing the connection rigidity between the prefabricated component and the upper layer of cast-in-situ building main body is provided at the junction between the prefabricated component and the upper layer of cast-in-situ building main body. The present invention realizes a flexible connection between a prefabricated component and a building main body, and avoids the influence of the prefabricated component on the rigidity of the building main body.

Disclosed invention comprises innovations related to the fabrication process and the associated design of Prefabricated Link Slabs made using Ultra High-Performance Concrete (UHPC) for bridges hereinafter referred as PLS-UHPC. This disclosure is regarding methods of designing, manufacturing, and installing PLS-UHPC as connections between bridge spans. The invention includes the concept of installing PLS-UHPC which will provide numerous benefits such as faster construction in the field, and better maintenance of established systems.

A method for construction using a panel and plank system that may optionally be made of Aerated Autoclaved Concrete (AAC), wherein wall panels are delivered, erected and attached to structural forms and braced with properly designed shoring/struts with form ties and specifically designed “panel ties”. Intermediate bracing is installed at midspan locations where spans are short and there is a possibility of wall buckling. Floor/roof planks are set on top of the walls being cognizant of bearing surface requirements. The deformed and post-tension reinforcing steel is set/installed and any miscellaneous detailing is completed. Thin AAC panels can be installed as form liners for added insulation where dimensions accommodate them. Structural grout or small aggregate concrete is placed, consolidated/vibrated, and finished and allowed to cure to minimum required strengths. Roof pours are given a “crown” to allow proper drainage.

In some embodiments, a building block includes alignment elements that interlink with a similar block with a positional offset. For example, the positional offset may be linear and/or rotational. For example, the second cinder block may be rotated with respect to the first block on which it is supports. Optionally, protrusions from the top of the block are positioned to interlink to the vertical slots at a fixed offset between the blocks. Optionally, the protrusions are formed by channels on a mold and/or a mold head. In some embodiments, a structure may be built stacked blocks. Optionally, a decorative face is configured to form a continuous decorated surface across offset blocks. In some embodiments a building block includes a calibration feature. For example, the block may include a ridge on the top of the block that may be shaved and/or ground to adjust the height of the block.

A fastening apparatus for two or more prefabricated blocks, in which the apparatus includes a perforated plate, a first block with a step, a connector plate that sized and shaped to engage the step, and an upstanding wall that is spaced apart from the block member. The perforated plate is connected to the wall and extends away from it towards the step. The perforated plate is partially mounted on part of the connector plate so as to sandwich it between the perforated plate and the step.

A panel attachment structure including a panel assembly having a channel member including a channel therein. The panel assembly further includes at least one reinforcing member directly or indirectly coupled to the channel member, and an insert assembly including an insert portion. The insert portion is configured to be closely slidably received in the channel member in an insertion direction, and the insert assembly is configured to be coupled to an underlying support structure.