A wall structure and a method for forming a wall structure is provided using three-dimensional printing of extruded building material applied to a surface of a building structure. According to one embodiment, the wall structure includes a pair of outer wythes spaced from an inner wythe. The outer wythes can include a core extending between the pair of outer wythes and toward the inner wythe. A protrusion can also extend toward the inner wythe a spaced distance from the inner wythe or entirely toward and adjoining the inner wythe. The core is configured with an inwardly facing spaced opposed surfaces of the outer wythes surrounding a vertically extending rebar, with grout surrounding that rebar. Horizontally extending support pins can be spaced parallel from each other and extend from the protrusions and into the inner wythe.

A method for constructing a three-dimensional (3D) printer-printable wall system includes forming a concrete foundation on a substrate, where the concrete foundation embeds horizontal and vertical reinforcements. A first inner wythe horizontal layer and a first outer wythe horizontal layer are printed using a concrete mixture from a 3D printer. The first inner wythe horizontal layer and the first outer wythe horizontal layer are separated by an interstitial space. A first wall dam is placed between the first inner wythe horizontal layer and the first outer wythe horizontal layer in the interstitial space. Additional inner wythe horizontal layers are printed on top of the first inner wythe horizontal layer to form a composite inner wythe. Additional outer wythe horizontal layers are printed on top of the first outer wythe horizontal layer to form a composite outer wythe. At least one additional wall dam is placed on every horizontal layer, while a wall tie and an attachment bracket for utility lines are placed only on pre-defined intervals of horizontal layers of the composite inner wythe and the composite outer wythe, which are separated by the interstitial space. A sill cap is installed on top of the composite inner wythe and the composite outer wythe, where the sill cap comprises a first curb to encapsulate a top portion of the composite inner wythe, a second curb to encapsulate a top portion of the composite outer wythe, and a central trough positioned between the first curb and the second curb. An anchor mechanism is inserted into the sill cap.

An example device for building stationary structures on a work surface includes a scaffold, which is arranged around the work surface. In the example, a working head is provided, which, with the help of multiple control cables is held on the scaffold and arranged above the work surface, upper control cables are provided, which run above the working head from the scaffold, lower control cables are provided, which run below the working head from the scaffold, all control cables can be extended out of the scaffold and retracted to the scaffold, in order to change a position of the working head, and a control unit is provided, which is connected with actuators for the extending and retracting of the control cables, and is configured to actuate these actuators to change the position of the working head.

The present invention discloses an integrated steel concrete building and its construction method. The building comprises a plurality of prefabricated room modules of steel, each including at least one column having a structure of hollow steel tube, which has an inner chamber inserted with penetrating rebars and poured with concrete. The penetrating rebars extend upwardly out of the column of the prefabricated room module into an inner chamber of a column of a prefabricated room module of an upper floor.

A device for fabricating structures of large dimensions, layer by layer.

The invention relates to a device making use of positioning an extrusion head in three dimensions by means of cables in order to deposit a pasty material continuously in thin layers, e.g. a mortar comprising either a hydraulic binder or thermoplastic compounds or thermosetting compounds or curable compounds.

The invention is for making industrial elements of very large dimensions, and more particularly for making buildings.

A mixing-extruding head apparatus for a three-dimensional (3D) printer for building residential houses and other objects, which enables printing of right-angled corners, the apparatus comprising a container for mixing mortar, the container comprising a funnel (1), a two-part helix (6) inside the container for mixing the mortar for building said objects, wherein the two-part helix (6) is installed on a main axis (2) inside the funnel (1) and the helix (6) comprises an inner metal part (6a) and an outer rubber part (6b), and wherein the helix (6) has at least one thread (turn), and an exit nozzle (14). The bottom part of the exit nozzle (14) is on each of its sides equipped with one of four blades (17), which are controlled by a servo-pneumatic system with computer-controlled commands for building the objects, wherein each of the blades is connected to a piston moved by a pneumatic cylinder; wherein all four pneumatic cylinders are connected with four electromagnetic valves, which generate pneumatic signals.

A wall structure and a method for forming a wall structure is provided using three-dimensional printing of extruded building material applied to a surface of a building structure. According to one embodiment, the wall structure includes a pair of outer wythes spaced from an inner wythe. The outer wythes can include a core extending between the pair of outer wythes and toward the inner wythe. A protrusion can also extend toward the inner wythe a spaced distance from the inner wythe or entirely toward and adjoining the inner wythe. The core is configured with an inwardly facing spaced opposed surfaces of the outer wythes surrounding a vertically extending rebar, with grout surrounding that rebar. Horizontally extending support pins can be spaced parallel from each other and extend from the protrusions and into the inner wythe.

Embodiments of a constructions system for constructing a structure atop a foundation are disclosed. In an embodiment, the construction system includes a rail assembly. The rail assembly is configured to be mounted to the foundation. In addition, the construction system includes a gantry movably disposed on the rail assembly. The gantry is configured to translate along a first axis relative to the rail assembly. Further, the construction system includes a printing assembly movably disposed on the gantry. The printing assembly is configured to translate along a second axis relative to the gantry. The second axis is orthogonal to the first axis. The printing assembly is configured to deposit vertically stacked layers of an extrudable building material onto a top surface of the foundation to construct a structure.

A device that compensates for abrupt variations in fluid flow rate for a pump line is described. One or more aspects pertain to a system to accomplish automated in-situ placement of a concrete wall or embankment, where a fluid concrete is pumped into place, consolidated, and screeded to a finished surface, with remotely controlled or automated equipment.

A hose management system for a 3D printing system having a print medium pump and a print nozzle may include a base, a vertical tower extending upward from the base, a vertical pipe rotatably coupled to the vertical tower, a boom pipe extending laterally outward from and rotating with the vertical pipe, a stick connected to the boom pipe for relative rotation about at least two perpendicular axes, and a print hose connected between the boom pipe and the print nozzle so that the vertical pipe, the boom pipe and the print hose place the print medium pump in fluid communication with the print nozzle. The print hose may be suspended from the stick such that the vertical pipe, the boom pipe, the stick and the print hose follow movement of the print nozzle by the 3D printing system to print a 3D object.