PERI SE

The invention relates to a system ( 1 ) for additively manufacturing constructions ( 2 ) or components of constructions ( 2 ), wherein a material discharge unit ( 3 ) can be moved in a plurality of degrees of freedom in order to discharge a mixed building material ( 4 ) layer-by-layer in predefined print pathways ( 4 a ), said system at least comprising: the material discharge unit ( 3 ); a mixing-and-pumping device ( 5 ), which is configured to mix the building material ( 4 ) with added water and then convey same from the mixing-and-pumping device ( 5 ) to the material discharge unit ( 3 ); at least one first sensor ( 6 ), which is suitable for measuring, directly inline, at least two first physical parameters of the mixed building material ( 4 ) continuously during the manufacturing process; a control unit ( 7 ) for controlling the manufacturing process, which control unit is communicatively connected at least to the mixing-and-pumping device ( 5 ) and the at least one first sensor ( 6 ) and which receives at least the measured first physical parameters of the at least one first sensor ( 6 ) as input signals and which is furthermore configured to continuously adapt and/or optimize the manufacturing process automatically in real time at least as a function of the first physical parameters of the at least one first sensor ( 6 ).

A device for additive manufacturing of a component includes a material dispensing unit for depositing a building material and an actuator assembly which is designed to move the material dispensing unit over a work surface in order to deposit the building material layer by layer in predetermined print paths. The device has at least one first guide leg which is designed to shape a first surface of the one or more layers of building material deposited by the material dispensing unit. The first guide leg is displaceable and driven by an actuator, in at least one translational degree of freedom or rotational degree of freedom relative to the material dispensing unit. The device has a cleaning assembly for cleaning the first guide leg of building material residues during a relative movement of the first guide leg relative to the material dispensing unit.

A formwork system for a bridge pier configured to support loads associated with bridge pier construction with reduced, or being free of, anchors in the column.

A scaffold stairway having two spaced-apart side rails designed as hollow profiles and a plurality of separate steps. The steps can be fastened by their free ends in holding devices for holding the steps that are designed as grooves on the mutually facing lateral faces of the side rails. The free ends of the steps lie on a groove flank or a groove flank portion. As a result, the side rails can be coupled.

A supporting framework having at least one suspension device for a diagonal cross brace that reinforces the supporting framework, wherein the suspension device has receiving fingers for openings provided on the ends of the diagonal cross brace, characterized in that two first receiving fingers of the suspension device each have a bent end portion, and second receiving fingers situated opposite from the first receiving fingers have a pivotable end portion.

A scaffold crossbar, particularly for the horizontally oriented installation in a scaffold section, comprising at least one crossbar beam which has a rod-shaped design and extends in the direction of a longitudinal axis, wherein the crossbar beam has two opposite ends in the direction of the longitudinal axis, and a connection interface which is provided for the connection to a scaffold element is arranged on each of these two ends. The scaffold crossbar further comprises at least two brackets which extend along a bracket axis, respectively, wherein the brackets respectively have two opposite ends in the direction of their bracket axis, wherein one of these ends of each bracket is connected to the crossbar beam, and at least two fasteners respectively one of which is arranged on the end of a bracket which is situated opposite of the connection of this bracket to the crossbar beam.

A grid beam slab formwork comprising of primary beams, secondary beams, multi-level drophead unit, and props. The multi-level drophead unit offers up to or more than six connection points for the primary beams and the secondary beams. The multi-level drophead unit allows the construction of an additional structure that otherwise requires a separate drophead or an adaptor thereby reducing an overall cost associated with the formwork. Moreover, the multi-level drophead unit enables the creation of the platform wherever needed. On the other hand, the adapter prevents entrapment of the sheathing members, such that the beams can be removed when the concrete has achieved required strength and the load can be taken by the props.

A scaffold node for connecting scaffold elements extending in different spatial directions, comprising a connecting sleeve which is provided as a coupling point for two scaffold components, in particular for two vertical posts or for a vertical post and a spindle nut post, and at least one coupling element which is used to connect the scaffold node to further scaffold components or scaffold elements. A scaffold portion comprising a scaffold node and further scaffold elements.

A climbing formwork device for a shaft-shaped component comprises a central formwork carrier means, which carries at least four formwork parts on its circumference to form an inner formwork. The formwork carrier means has a lifting means to move anchoring formwork parts, which face away from one another, relative to the formwork carrier means and relative to the other formwork parts in the lifting direction. The formwork carrier means is furthermore formed to move all formwork parts to a retracted lifting position and a formwork position. The anchoring formwork parts have at least two securing appendages, which project from the formwork plane of the formwork parts for vertically securing the climbing formwork device in the shaft wall. The securing appendages are spaced apart from one another in the lifting direction by a lift of the lifting means, and a distance between the securing appendages can be set.

A frame formwork element with a frame and a formwork shell which can be attached to the frame. The frame has at least two frame longitudinal parts and at least two frame transverse parts. At least one transverse bracing is fixed between the frame longitudinal parts, said transverse bracing having two transverse braces which run parallel to each other in a mutually spaced manner and between which a through-gap is formed for passing through anchor rods. At least one guide device for forming an anchor point can be inserted into the through-gap. The guide device has an anchor hole for passing through one of the anchor rods and a securing region for securing the guide device to the transverse bracing. In order to pass through the anchor rod, the guide device has a conical guide part ( 13 ) which is flush with the anchor hole.