Structural decking system

Abstract

A main decking panel for a structural decking system that includes a plurality of the main decking panels is disclosed. The main decking panel includes a base component that includes a central pan (7) and lap joints (9) on each side of the pan to enable adjacent main decking panels to be positioned side by side in overlapping relationship. The main decking panel also includes a strengthening component in the form of an inverted channel member secured to the base component. The channel member includes two oppoesd side walls (11) formed from web components and a top (13) formed from a chord component. The web and top chord components are manufactured as separate components and thereafter assembled together to form the channel member.

Description

TECHNICAL FIELD [0001] The present invention relates to structural decking systems and to composite slabs that include the systems. [0002] The present invention also relates to a method of manufacturing structural decking systems. [0003] The present invention relates particularly to structural decking systems for constructing composite slabs. [0004] A major, although not the only, end use application of such structural decking systems is in the construction of composite slabs that form floors in buildings (which term includes car parks). [0005] Another, although not the only other, end use application of such structural decking systems is in the construction of composite slabs that form vertical wall panels. BACKGROUND ART (a) Conventional Composite Slab Construction [0006] Structural steel decking can serve a dual function when used in the construction of composite steel / concrete floor slabs and beams. The decking can act as structural formwork by supporting building materials and...

AI Technical Summary

Benefits of technology

[0029] A significant advantage of the present invention is that the use of separate components that are assembled together makes it possible to optimise the structural requirements of the components to the required performance of the components.

[0046] The longitudinal stiffeners and the down-turned sides of the top chord component are provided to strengthen the decking panel. Specifically the longitudinal stiffeners and down-turned sides stiffen the top chord component to resist buckling due to longitudinal compression loads.

[0049] The corrugations are provided to strengthen the decking panel. Specifically the corrugations stiffen the web components to resist vertical and longitudinal shear.

Problems solved by technology

This significantly restricts the maximum flexural stiffness and ultimate strength of a deck with a set geometry.

This in turn can severely impact on the minimum overall depth of the steel decking that can be used to achieve a certain span, which itself can significantly affect the minimum overall depth of the composite slab.

Therefore, interaction between the sheeting and the accessory is very limited.

Another major disadvantage with this invention is that the accessory must be fitted when the sheeting is in its final position in the building.

The manufacturer discounts any effect that the accessory might have on the longitudinal slip resistance of the deck, which could be an unsafe conclusion.

Images