A precast concrete floor panel having stems molded in a mold with stem mold cavities and a deck. The deck can be formed in the same mold that includes the stem mold cavities or the concrete for the deck can be poured and cured on-site after the stems have been removed from the mold. The mold can include mold segments made from an insulating material that can remain attached to the stems to insulate the finished floor panel.

An integrally assembled hidden beam hollow two-way floor system includes precast slabs (1), honeycomb steel beams (3), and cast-in-place concrete (4). A plurality of compartments (12) arranged in a matrix is integrally provided on one surface of each of the precast slabs (1), and connecting grooves (14) are provided at a periphery of another surface of the precast slab (1) is provided with connecting grooves (14). Prepared bolt holes (13) penetrating through the precast slab (1) are provided in the connecting grooves (14). The honeycomb steel beam (3) serves as a primary beam or a secondary beam of a steel structure of the floor system. A surface of the precast slab (1) provided with no compartments is lapped and fixed between the secondary beams or between the primary beam and the secondary beam, and adjacent precast slabs (1) are connected and fixed by a U-shaped hoop (2) passing through the prepared bolt hole (13) to form a seam. The cast-in-place concrete (4) includes a surface layer cast onto the compartments (12) and a cast-in-place concrete ribs (41) cast between the compartments (12) of adjacent precast slabs (1) and between the compartment (12) and the primary beam and the secondary beam, the surface layer and the cast-in-place concrete ribs (41) being integrated. An assembly method for the integrally assembled hidden beam hollow two-way floor system is further provided. A method for assembling an integrally assembled hidden beam hollow two-way floor system is provided. The floor system and method for assembling the same achieve similar force performances in two directions, reliable connection between the floor slab and peripheral members, elimination of a risk of cracking of slab seams, and improved assembly efficiency.

A cellulose-based structural building panel assembly includes a cross-laminated timber (CLT) core which is reinforced with one or more post-tensioned tendons stressed to a pre-selected tensioning force, following the placement as part of the panel assembly. The tendons are provided within a sleeve which is grouted with a channel formed in an underside of the core and which after post-tensioning of tendons is infilled with a binder securing the tendons in a fully bonded configuration.

An integrally assembled hidden beam hollow two-way floor system includes precast slabs (1), honeycomb steel beams (3), and cast-in-place concrete (4). A plurality of compartments (12) arranged in a matrix is integrally provided on one surface of each of the precast slabs (1), and connecting grooves (14) are provided at a periphery of another surface of the precast slab (1) is provided with connecting grooves (14). Prepared bolt holes (13) penetrating through the precast slab (1) are provided in the connecting grooves (14). The honeycomb steel beam (3) serves as a primary beam or a secondary beam of a steel structure of the floor system. A surface of the precast slab (1) provided with no compartments is lapped and fixed between the secondary beams or between the primary beam and the secondary beam, and adjacent precast slabs (1) are connected and fixed by a U-shaped hoop (2) passing through the prepared bolt hole (13) to form a seam. The cast-in-place concrete (4) includes a surface layer cast onto the compartments (12) and a cast-in-place concrete ribs (41) cast between the compartments (12) of adjacent precast slabs (1) and between the compartment (12) and the primary beam and the secondary beam, the surface layer and the cast-in-place concrete ribs (41) being integrated. An assembly method for the integrally assembled hidden beam hollow two-way floor system is further provided. A method for assembling an integrally assembled hidden beam hollow two-way floor system is provided. The floor system and method for assembling the same achieve similar force performances in two directions, reliable connection between the floor slab and peripheral members, elimination of a risk of cracking of slab seams, and improved assembly efficiency.

This invention involves three masonry units that can aid in materializing masonry construction of better quality. The masonry units include the CMH-4, the CVMH-8 and the SNH-4. The CMH-4 includes cells that permit interior wall cavities that can help include larger piping inside walls as well as horizontal piping for sanitary ventilation without losing the traditional way of installing CMU's or interrupting the typical and usually recommended running bond. The CVMH-8 permits the cutting of the unit in different shapes, of which one can be used as framework. The SNH-4 is a concrete unit that can be used as a planting wall, that aids in openings without windows or doors and that is compatible in dimensions with other CMU's. The three units are compatible with existing masonry units, permitting their mixed use according to design needs.

A thermal insulation plate (1), which is manufactured from cellular plastic, and the upper surface of which comprises grooves (5a, 5b), which are arranged in two directions over the area of the entire surface. The thermal insulation plate comprises at least in part of the groove (5a, 5b) intersections a spacer (6, 6a, 6b) for installing reinforcement, which is formed from thermal insulation material as a fixed part of the thermal insulation plate.

A cellulose-based structural building panel assembly includes a cross-laminated timber (CLT) core which is reinforced with one or more post-tensioned tendons stressed to a pre-selected tensioning force, following the placement as part of the panel assembly. The tendons are provided within a sleeve which is grouted with a channel formed in an underside of the core and which after post-tensioning of tendons is infilled with a binder securing the tendons in a fully bonded configuration.

A wood-concrete composite slab having a planar wood element, by means of which spans with little dependence upon the relative inherent weight of the slab are achieved. The slab layer construction includes a wood layer, an insulating layer, and a concrete layer. In one embodiment, the layer construction is interrupted by at least one bearing means, in that this bearing means traverses at least the concrete layer and the insulating layer and extends downward at least as far as the wood layer. In a different embodiment, for a high level of soundproofing, the slab comprises in its insulating layer two different-density insulating materials, wherein the denser insulating material rests directly on the wood layer, acting as a vibration damping means. In a further embodiment, the wooden panels of the wood-concrete composite slab that form the planar wood element are tensioned against one another in order to convey tensile forces therethrough.