An assembly of concrete structural elements includes a first and a second concrete lower column, and a first and a second column capitals are supported on respective upper ends of the respective first and second lower columns. At least one inverted beam is extended between the first and second column capitals. At least one lower flat surface of the inverted beam is positioned on respective edges of the first and second column capitals.

An assembly of concrete structural elements includes a precast concrete lower column, a precast concrete column capital supported on an upper end of the lower column, at least one precast concrete beam supported by the precast column capital, at least one slab supported by the at least one beam, an upper column extending above the lower column, and a poured concrete lap splice connecting the lower and upper columns, a volume of the lap splice being at least partially defined by the lower column, the column capital, the beam, the slab and the upper column. A method of making a lap splice comprises embedding splice reinforcement in each of opposed end of a pair of concrete structural elements such that the splice reinforcement extends out of each approximately as far as the structural reinforcement and overlaps the structural reinforcement within the opposed ends.

An assembly of concrete structural elements includes a precast concrete lower column, a precast concrete column capital supported on an upper end of the lower column, at least one precast concrete beam supported by the precast column capital, at least one slab supported by the at least one beam, an upper column extending above the lower column, and a poured concrete lap splice connecting the lower and upper columns, a volume of the lap splice being at least partially defined by the lower column, the column capital, the beam, the slab and the upper column. A method of making a lap splice comprises embedding splice reinforcement in each of opposed end of a pair of concrete structural elements such that the splice reinforcement extends out of each approximately as far as the structural reinforcement and overlaps the structural reinforcement within the opposed ends.

An assembly of concrete structural elements includes a precast concrete lower column, a precast concrete column capital supported on an upper end of the lower column, at least one precast concrete beam supported by the precast column capital, at least one slab supported by the at least one beam, an upper column extending above the lower column, and a poured concrete lap splice connecting the lower and upper columns, a volume of the lap splice being at least partially defined by the lower column, the column capital, the beam, the slab and the upper column. A method of making a lap splice comprises embedding splice reinforcement in each of opposed end of a pair of concrete structural elements such that the splice reinforcement extends out of each approximately as far as the structural reinforcement and overlaps the structural reinforcement within the opposed ends.

An assembly of concrete structural elements includes a precast concrete lower column, a precast concrete column capital supported on an upper end of the lower column, at least one precast concrete beam supported by the precast column capital, at least one slab supported by the at least one beam, an upper column extending above the lower column, and a poured concrete lap splice connecting the lower and upper columns, a volume of the lap splice being at least partially defined by the lower column, the column capital, the beam, the slab and the upper column. A method of making a lap splice comprises embedding splice reinforcement in each of opposed end of a pair of concrete structural elements such that the splice reinforcement extends out of each approximately as far as the structural reinforcement and overlaps the structural reinforcement within the opposed ends.

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 structure includes elements that are integrally connected by a poured bonding structure. The elements include a beam having a cavity that is configured to receive a pourable bonding material and flooring sections that are supported by the beams. The flooring sections include voids that open to a cavity. Inserts are positioned in the voids to control the limit the depth that the pourable bonding material can flow into the voids and to increase the strength of the poured bonding structure.

A building structure with a balcony includes a beam with an upward facing cavity. The beam includes an opening in which a cantilevered section is received. The cantilevered section has a proximal end that is positioned in the cavity and a poured bonding structure fills the cavity.

The invention provides novel articles of composite materials having hollow interior channels or passageways, or otherwise being hollowed out, and formulations and methods for their manufacture and uses. These hollow core objects are suitable for a variety of applications in construction, pavements and landscaping, and infrastructure.

A method for manufacturing a prefabricated concrete product is disclosed, in which method, a concrete slab with a recess at its upper surface is cast with slipform casting on a casting bed, and after the slipform casting of the slab the recess of the fresh cast slab is equipped with ducts, piping and/or wiring components, after which the recess is covered with concrete mass, and the concrete product is left to cure. The invention also relates to such a prefabricated concrete product.