The present invention relates to forms for forming poured-in-situ vertical concrete walls, columns, floors and parapets of residential or commercial buildings, in particular a form having at least one precast reinforced concrete panel.

A reinforced compound concrete beam-column joint containing demolished concrete lumps and a construction method are disclosed. The steel strip stirrups configured to constrain column longitudinal reinforcements of the reinforced compound concrete column containing demolished concrete lumps and the steel connection sheets with grooves are arranged in joint at positions of the upper and lower beam longitudinal reinforcements of the reinforced compound concrete beam containing demolished concrete lumps. The steel strip stirrups abut against the column longitudinal reinforcements. The steel connection sheets are welded to the steel strip stirrups. One end of the short steel bars with threads at one end is welded into the grooves of the steel connection sheets, and the other end is connected to the beam longitudinal reinforcement via a steel sleeve. The joint prevents the beam longitudinal reinforcements from passing through the joint and thus causing reinforcements congestion.

A composite structural member for a building structure comprises a first elongate portion having a first end region and a second end region and a second elongate portion having a first end region and a second end region. The second end region of the first elongate portion is connected to the first end region of the second elongate portion so that the composite structural member provided thereby is substantially longer than either of the first and second elongate portions. The first elongate portion may comprise a first member suited for resisting high magnitude forces and the second elongate portion may be a second member, less well suited for resisting high forces but having lower cost per unit length. The composite structural member may be a rafter, especially a rafter of a portal frame.

A composite structural member for a building structure comprises a first elongate portion having a first end region and a second end region and a second elongate portion having a first end region and a second end region. The second end region of the first elongate portion is connected to the first end region of the second elongate portion so that the composite structural member provided thereby is substantially longer than either of the first and second elongate portions. The first elongate portion may comprise a first member suited for resisting high magnitude forces and the second elongate portion may be a second member, less well suited for resisting high forces but having lower cost per unit length. The composite structural member may be a rafter, especially a rafter of a portal frame.

A method for producing a component from hardenable material, wherein, in a first method step, at least one layer of the material is printed in a 3D printing process, in a second method step, multiple similar reinforcing elements are introduced into the layer(s) and the two method steps are cyclically repeated until the component is completed, characterized in that, with the exception of the two bottommost and the topmost layers, each reinforcing element extends over at least three layers, and the reinforcing elements are arranged in strands which extend through all the layers and have, in each layer, at least three reinforcing elements, the lateral distance (A) of these reinforcing elements from each other within a strand being a maximum of five times the largest lateral extent (D) of a reinforcing element.

The invention relates to a supporting beam, in particular of composite design, for slab systems, in particular of composite design, wherein the supporting beam extends in a longitudinal direction and has: a support extending in the longitudinal direction, in particular a steel support, which is formed in at least two pieces and has at least two support parts which each extend in the longitudinal direction.

The invention relates to a supporting beam, in particular of composite design, for slab systems, in particular of composite design, wherein the supporting beam extends in a longitudinal direction and has: a support extending in the longitudinal direction, in particular a steel support, which is formed in at least two pieces and has at least two support parts which each extend in the longitudinal direction.

A building system for buildings comprising at least two stories, provided with: a plurality of first portals (3, 3) adapted to be arranged along at least two mutually parallel vertical planes and to be fixed to a base (2); first connecting beams (15) for connecting a first portal (3) and the next first portal (3) arranged along a same vertical plane of said at least two vertical planes; first floor panels (17) adapted to transversely connect together both the first portals (3, 3) arranged along the at least two vertical planes, and the first connecting beams (15) arranged along the at least two vertical planes; a plurality of second portals (40, 40) adapted to be arranged along said at least two vertical planes, each on top of a respective first portal (3, 3); wherein each first portal (3, 3) and each second portal (40, 40) are monolithic and substantially consist of at least two pillars (4) parallel to each other and of a beam (5, 5), arranged transversely on top of the pillars (4), each pillar (4) being provided with a plurality of first connecting bars (9), which are arranged inside each pillar (4), parallel to the longitudinal axis thereof, and extend outwards above the beam (5, 5), and wherein a plurality of anchoring plates (11) is included, each anchoring plate being provided with through holes and constrained to the lower end (7) of a respective pillar, whereby the first connecting bars of the first portals are adapted to be inserted and clamped by clamping means (13) into the through holes of the anchoring plate of the respective second portals.

A building system for buildings comprising at least two stories, provided with: a plurality of first portals (3, 3) adapted to be arranged along at least two mutually parallel vertical planes and to be fixed to a base (2); first connecting beams (15) for connecting a first portal (3) and the next first portal (3) arranged along a same vertical plane of said at least two vertical planes; first floor panels (17) adapted to transversely connect together both the first portals (3, 3) arranged along the at least two vertical planes, and the first connecting beams (15) arranged along the at least two vertical planes; a plurality of second portals (40, 40) adapted to be arranged along said at least two vertical planes, each on top of a respective first portal (3, 3); wherein each first portal (3, 3) and each second portal (40, 40) are monolithic and substantially consist of at least two pillars (4) parallel to each other and of a beam (5, 5), arranged transversely on top of the pillars (4), each pillar (4) being provided with a plurality of first connecting bars (9), which are arranged inside each pillar (4), parallel to the longitudinal axis thereof, and extend outwards above the beam (5, 5), and wherein a plurality of anchoring plates (11) is included, each anchoring plate being provided with through holes and constrained to the lower end (7) of a respective pillar, whereby the first connecting bars of the first portals are adapted to be inserted and clamped by clamping means (13) into the through holes of the anchoring plate of the respective second portals.

A building based on a large-space structure body and a freestanding external envelope structure and a construction method, wherein the building comprises a structure body composed of a vertical-structure reinforced concrete member, a reinforced concrete girder and a reinforced concrete slab, and a freestanding combined external envelope system externally hung in a periphery of the structure body; and the structure body is made of a prefabricated combined reinforcement cage member poured with concrete, the prefabricated combined reinforcement cage member is combined and assembled by a prefabricated vertical-structure reinforcement cage member, a prefabricated girder reinforcement cage member and a prefabricated slab reinforcement cage member, and the prefabricated vertical-structure reinforcement cage member is a prefabricated shear wall reinforcement cage member or a prefabricated column reinforcement cage member.