Lattice Girders With Concrete Flanges Floors

A composite hollowcore floor combines precast hollowcore units with a structural concrete topping resulting in enhanced structural performance and lateral load distribution.

Lattice girders with concrete flanges floors.

The keegan precast omnia flooring system is suitable for concrete steel and masonry building structures. Lattice girder slabs lattice girder slabs act as permanent formwork and as precast soffits for robust high capacity composite floor slabs. Sound resistance composite lattice girder floors are suitable for use at first floor level in domestic housing to create a quiet home for the benefit of home owners their families and neighbours. Slab thickness ranges from 75mm to 250mm depending on loads and span.

The top reinforcement mat is placed on site along with a layer of stitching reinforcement across the joint between slabs prior to pouring the in situ concrete. It consists of a single 65mm precast concrete leaf with a projecting lattice girder. Due to the total integration with the shotcrete spray the lattice girders are completely encased in concrete and form a complete composite reliable structure. It is cast in a factory controlled environment to maximize quality.

The units are typically 50mm to 100mm thick and 1200mm or 2400mm wide. The lattice girder provides rigidity to the slab when in situ concrete is poured on. The main bottom floor reinforcement is contained within the precast concrete leaf. The quality of the bond between the shotcrete and the lattice girders is determined essentially by the mechanical properties of the shotcrete compressive and tensile strength and the.

They are cast with most if not all of the bottom reinforcement required. A magicrete precast concrete solid slabs are made using high strength concerete and steel which can be used in residential commercial and industrial construction. The precast industry is the main focus of schiaslo spil s program with a wide range of forming machines and automated processing lines specifically designed for concrete and brick based beams and lintels panels tunnel segments poles blocks and various customized elements including. Composite lattice girder floors are usually designed with a minimum 1hour fire resistance although periods of up to 4 hours are possible.

Use of lattice girders in reinforced concrete floor plates is a widely practiced method of construction for conventional high rise building structures. An estimated 70 of all floors in these structures are executed with lattice girder floor plates 1. The top reinforcement is fixed in situ. A floor system that serves as an alternative to conventional concrete in place floors in which a prefabricated slab with reinforcement serves as a permanent formwork for the final casting of the floors.