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.

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 modular precast concrete structure system to form a modular precast concrete structure as a portion of a subsurface storage basin is provided, the system including a concrete slab having a first edge and opposite second edge, and a first concrete side wall having an outer surface extending from the first edge substantially perpendicularly to the concrete slab, and a second concrete side wall having an outer surface extending from the second edge substantially perpendicularly to the concrete slab, the outer surfaces of the first and second concrete side walls being configured to be substantially parallel, each of the first and second side walls being configured with canted inner surfaces such that the first and second side walls taper in thickness away from the slab, and a plurality of footings each configured with a footing groove along an upper surface thereof, the footing grooves configured to receive a bottom edge of at least one of the first and second side walls therein.

A modular precast concrete structure system to form a modular precast concrete structure as a portion of a subsurface storage basin is provided, the system including a concrete slab having a first edge and opposite second edge, and a first concrete side wall having an outer surface extending from the first edge substantially perpendicularly to the concrete slab, and a second concrete side wall having an outer surface extending from the second edge substantially perpendicularly to the concrete slab, the outer surfaces of the first and second concrete side walls being configured to be substantially parallel, each of the first and second side walls being configured with canted inner surfaces such that the first and second side walls taper in thickness away from the slab, and a plurality of footings each configured with a footing groove along an upper surface thereof, the footing grooves configured to receive a bottom edge of at least one of the first and second side walls therein.

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.

A novel function-recoverable prefabricated seismic shear wall structure with replaceable components, which includes main structural components, connecting components and replaceable components. All components are connected by bolts or pins. The connections can provide sufficient strength to effectively connect adjacent upper and lower wall panels, or wall panel and coupling beam, together. The replaceable components are installed in the bottom region of the wall and coupling beams, which provide sufficient bearing capacity and stiffness for the building structure under service loads and dissipate seismic energy under the earthquake. The damage concentrates on the replaceable components which could be easily replaced after a strong earthquake so that the function of the building structure could be quickly restored. In addition, the replaceable components with different energy-dissipation mechanisms facilitate the shear wall structure to have multiple seismic fortification lines, and improve the seismic performance of the building structure.

A novel function-recoverable prefabricated seismic shear wall structure with replaceable components, which includes main structural components, connecting components and replaceable components. All components are connected by bolts or pins. The connections can provide sufficient strength to effectively connect adjacent upper and lower wall panels, or wall panel and coupling beam, together. The replaceable components are installed in the bottom region of the wall and coupling beams, which provide sufficient bearing capacity and stiffness for the building structure under service loads and dissipate seismic energy under the earthquake. The damage concentrates on the replaceable components which could be easily replaced after a strong earthquake so that the function of the building structure could be quickly restored. In addition, the replaceable components with different energy-dissipation mechanisms facilitate the shear wall structure to have multiple seismic fortification lines, and improve the seismic performance of the building structure.