The invention relates to a prefabricated panel for light-weight one-way joist slabs of the compound section type, comprising an upper contributing layer, a lower contributing layer having a series of upper peaks and troughs and shear transfer bolts which secure the upper contributing sheet to the upper peaks of the lower contributing sheet, and shear bolts or pins which secure the lower contributing layers to the slab framework beam. The functioning of the upper and lower contributing layers as a compound section permits the production of a highly efficient system for supporting the requirements of bending and shear forces, having a low unitary weight in comparison to the existing systems, which involves lower loads in terms of its own weight and a reduction in the inertia effects during seismic events, while constituting a less bulky structural solution, having fewer ground requirements and being much more economical, thereby reducing the time and input, labour and equipment required for the production and assembly thereof.

The invention relates to a prefabricated panel for light-weight one-way joist slabs of the compound section type, comprising an upper contributing layer, a lower contributing layer having a series of upper peaks and troughs and shear transfer bolts which secure the upper contributing sheet to the upper peaks of the lower contributing sheet, and shear bolts or pins which secure the lower contributing layers to the slab framework beam. The functioning of the upper and lower contributing layers as a compound section permits the production of a highly efficient system for supporting the requirements of bending and shear forces, having a low unitary weight in comparison to the existing systems, which involves lower loads in terms of its own weight and a reduction in the inertia effects during seismic events, while constituting a less bulky structural solution, having fewer ground requirements and being much more economical, thereby reducing the time and input, labour and equipment required for the production and assembly thereof.

PROBLEM TO BE SOLVED: To provide a concrete structure and a concrete slab, which, by using a continuous fiber-reinforced polymer material as a main reinforcing material or a tendon, and by mixing a short fiber reinforcing material in concrete, compensate for the mechanical shortcomings of the continuous fiber-reinforced polymer material, not rusting, and taking advantage of superior characteristics of the continuous fiber-reinforced polymer material, with low manufacturing cost and ultra-high durability.

MEANS TO SOLVE THE PROBLEM: In a concrete structure, in which a continuous fiber-reinforced polymer material is arranged as a main reinforcing material or a tendon, a short fiber reinforcing material consisting of an organic fiber is mixed in 0.5% or more with respect to an entire volume, the continuous fiber-reinforced polymer material is shaped like a rod or a stranded wire, a ratio Lf/Gm between a fiber length Lf of the organic fiber of the short fiber reinforcing material and a maximum aggregate diameter Gm of a concrete composition is 1.2 to 3.7, and an aspect ratio Lf/De when an equivalent diameter De, which is a cross-sectional area of the organic fiber converted into a circle diameter, is 30 to 69.

A new and improved building panel for modular construction. The building panel utilises less framework for reduced complexity, materials and weight. The panel utilises features of the formwork to allow the panel to be moved easily. The panel further utilises new formwork moulds that are easier to use and create effective patterns for keying with like panels.

A new and improved building panel for modular construction. The building panel utilises less framework for reduced complexity, materials and weight. The panel utilises features of the formwork to allow the panel to be moved easily. The panel further utilises new formwork moulds that are easier to use and create effective patterns for keying with like panels.

A roadway coverplate for an assembly of an inductive charging device for inductively charging a motor vehicle, may include a main body and a cover. The main body may have an upper side for parking a motor vehicle and a lower side facing away from the upper side. The main body, on the lower side, may include a depression configured to receive the assembly. The cover may cover the depression and may, outside the depression, bear on a bearing portion of the lower side. The cover may be coupled in a force-fitting manner to the lower side in the bearing portion and may be configured to conjointly support a load acting on the upper side.

A roadway coverplate for an assembly of an inductive charging device for inductively charging a motor vehicle, may include a main body and a cover. The main body may have an upper side for parking a motor vehicle and a lower side facing away from the upper side. The main body, on the lower side, may include a depression configured to receive the assembly. The cover may cover the depression and may, outside the depression, bear on a bearing portion of the lower side. The cover may be coupled in a force-fitting manner to the lower side in the bearing portion and may be configured to conjointly support a load acting on the upper side.

A modular foundation system comprises a concrete reinforced matrix having embedded pre-tensioned components and a recessed tension bolster region adjacent the lower surface of the foundation at each end, and a pair of lifting safety bars partially embedded in the foundation within the recess and terminating at the end of the foundation.

A modular foundation system comprises a concrete reinforced matrix having embedded pre-tensioned components and a recessed tension bolster region adjacent the lower surface of the foundation at each end, and a pair of lifting safety bars partially embedded in the foundation within the recess and terminating at the end of the foundation.

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.