An anchor assembly (10) comprises an anchor (12) comprising a body (15) defining a cavity (16). The anchor (12) further comprises a reinforcing member (18) extending through the cavity (16) and outwardly from the body (15). The anchor assembly (10) further includes an insertion device (14) insertable into the cavity (16). The insertion device (14) comprises a securing member (49) movable between securing and non-securing positions. When the movable securing member (49) is in the securing position in the cavity (16), the securing member (49) can engage the reinforcing member (18) to secure the insertion device (14) to the anchor (12).

Improvements in machine walls to construct a building or house is disclosed. Adjacent side of the wall sections are tapered and dovetailed that lock-in-place. The dovetails are spaced to reduce the height that one section must be lifted to engage in an adjoining wall section. The footers/base plate will also have integrated earthquake or hurricane hold-downs in the footer/base plate that aligns and can be secured from the foundation to the wall sections. The connection of the wall section to the foundation to have counter flashing at the concrete insert and the wall-to-wall sections can be self-flashed. The wall sections can have GPS locators for positioning the wall sections. Plumbing and electrical conduit creating circuits that can be integrated into the walls and are connected sealed or bonded together.

A connector and a method of manufacturing a connector are provided for joining a precast concrete structure and a support structure such as a floor joist. An attachment member of the connector is assembled in a manner that allows forces to be transferred through a protrusion and aperture connection, which reduces the forces transferred through welded joints. As a result, the attachment member requires less welding and saves time and costs when installing the connector. In some embodiments, a support is secured to a horizontal plate which increases the rigidity of the horizontal plate and the ability of the horizontal plate to transfer forces from a support structure to a precast concrete structure.

Adjacent concrete wall panels are connected at the vertical joint by a shear connector structure that includes a metal connector angle embedded in a corner portion of one of the panels, and one or more threaded nuts or studs are welded to a flange of the angle. A metal shear connector plate has a hole for each threaded nut or stud and elongated holes or slots for the other concrete panel. After the panels are erected and positioned, the connector plate is bolted to the studs and self-tapping concrete anchor screws are inserted into the slots and threaded into holes formed in the other panel. The studs are formed by machinery weld studs to form a bore with threads at the welded end of each stud.

Various embodiments of the present disclosure provide a load transfer plate and load transfer plate pocket that co-act to transfer vertical or substantially vertical loads from one concrete slab to the adjacent slab in an enhanced manner by optimizing the positions of the load transfer plate relative to the adjacent concrete slabs for load transfers between the adjacent concrete slabs.

An anchor device for a floor, the anchor device comprising an article securing arrangement to which an article can be secured. The article has a moveable securing mechanism. The article securing arrangement defines a cavity to receive the moveable securing mechanism, and the article securing arrangement includes a co-operating means to co-operate with the moveable securing mechanism in the cavity and secure the article to the anchor device. The anchor device has a height which is no more than 30 mm.

A wall panel includes hollow connector blocks in its lower corners, reinforced with anchor pins embedded in cementitious material of the panel. The connector blocks have holes for connecting adjacent wall panels together and for connecting the wall panels to the floor. Connectors are inserted via exposed apertures in the connector blocks that provide access to their hollow interiors. The apertures can be covered when the panels are fastened in place.

The precast structural element is made by a method including preparing one or more layers of plurality of horizontal and vertical reinforcement bars. The method further includes fixing a plurality of hollow tubes to the layers at predefined locations by holding means. Specifically, the hollow tubes are provided with openings at predefined locations. The hollow tubes are characterized by having any one of plurality of protrusions, plurality of corrugation, plurality of ribs, plurality of serrations and combination thereof, on internal and external surfaces. The method further includes providing a means to fill or discharge adhesive in the hollow tubes and pouring concrete to create a precast structural element.

A concrete dowel placement system and methods for making the same. The system allows for accurate and easy substantially-parallel or parallel placement of slip dowels within sections of concrete so that adjacent sections of concrete may be allowed to undergo thermal expansion and contraction while remaining in a common plane without cracking or faulting. The system includes a coupler and a sheath. The sheath is configured to be slidably extensible over the coupler and may be held to the coupler by friction. Additionally, a method of constructing the concrete dowel placement system includes extruding material to form two tubes of different sizes. The tubes are then attached to each other, then material is extruded to form a sheath. Alternatively, construction may include extruding material to form a tube, then removing some of the material from the tube in order to form a coupler.

An apparatus, system, and method is provided to connect precast concrete panels to a structural member. The connector can have a receiving member embedded in a precast concrete panel and can further have an attachment member that selectively interconnects to the receiving member. This attachment member can have a surface that is oriented substantially perpendicular to the precast concrete panel and that receives or supports a structural member such as a floor joist or a second precast concrete panel. The configuration of a protrusion of the attachment member allows for a rapid and secure interconnection with an aperture in the receiving member. A builder can use the connector system described herein to rapidly and securely assemble multiple precast concrete panels to structural members in the construction of, for example, a parking garage or other similar structure.