composite slabs. the decking profiled steel sheeting not only acts as permanent formwork to the concrete, but also provides sufficient shear bond with the concrete so that, when the concrete has gained strength, the two materials act together compositely span between 3 m and 4.5 m onto supporting beams or walls.
slab thickness is measured from bottom of ribs. the requirements for shoring are based on the ability of the decking to. sustain the weight of the fresh concrete plus a construction live load of 20 pounds per square foot without exceeding an. allowable unit stress of 20,000 psi.
systems of reinforced concrete slabs on steel decks can be used to save time and expense. they offer certain advantages over conventional construction. one is that they replace conventional work forming and bar reinforcement. they can also eliminate shoring. the dead load of the decking is low yet it provides a working platform for other trades.
composite slabs consist of profiled steel decking with an in-situ reinforced concrete disadvantages of using shot-fired studs or pre-welded studs for beams. the main advantage of composite slab compared to other floors is their quick assembly.
precast deck structure. no forming is required, except for leveling and a topping slab. larger lifting equipment is needed for the loads of precast. this requires more stable soils or mats to support the crane. it is necessary to level the slab. insulation is required between the topping slab and the leveling slab when used with conditioned spaces.
advantages of using the metfloor 60 steel decking. this is due to its speed of installation; the reduced carriage requirements; reduced structure weight and height, and by providing a working platform during construction safer manual handling with a standardised cover width of just 600mm, the sheets are lightweight and can be handled safely without compromising the speed of construction.
the main benefits of composite slabs are as follows: versatility; they can be adapted to many practical cases and a multitude of solutions. resistance/weight ratio; greater resistance with lese weight, thus enabling a global reduction of the structures weight. the minimum slab edge measures a mere 12 cm.
loor construction consisting of concrete over metal decking and supported by steel beams and girders is a frequently employed structural system. when temporary shoring is not used, the steel framing and decking deflects dur-ing placement of the concrete floor slab. if the concrete were placed to the specified uniform thickness, the result would be
the concrete is basically just flooring material and does not support its own weight. this has all the advantages of concrete as a surface - durability, hardness, you could bond tile to it, etc. but it does not rely on the concrete for actual structural strength of the building, as a metal-pan would in a commercial setting.
the advantages of steel decking. steel decking provides flexible reinforcement, combined with the comprehensive strength of the concrete, for an all-round stronger slab. the steel decking profiles are designed to inhibit any longitudinal slip between the steel and concrete in the slab itself, and any transverse movement between the slab and the supporting beams.
fig.9: precast concrete slab placed on slimflor beam. long-span composite beams and composite slabs with metal decking. it is composed of primary and secondary steel beams and composite slab. there are two main beam arrangements for this floor system. the slab is supported by long span beams at spacing of 3 to 4m and act as secondary beams.
saving in weight. composite slabs using steel decking are considerable stiffer ans stronger than many other flooring systems, so the weight and size of the primary structure can be reduced. consequently, foundation sizes can also be reduced. easy installation of services.
the advantages of this type of floor system over a traditionally reinforced concrete floor slab. these advantages have been discussed thoroughly in the past 45,46,49 and thus only certain key advantages are repeated here. one such advantage is that the cold-formed steel deck functions both as a permanent form and as the principal
bondek structural steel decking is a highly efficient, versatile and robust formwork, reinforcement and ceiling system for concrete slabs. it is a profiled steel sheeting widely accepted by the building and construction industry to offer efficiency and speed of construction.
kingflor design data fielders have undertaken world first testing to study the behaviour of the kingflor metal deck in post-tensioned concrete slabs. kingflor kf40 fielders kingflor kf40 squashcut is a revolutionary steel formwork product highly suitable for all types of concrete slab construction.
composite metals deck profile sheets are steel deck with a ribbed profile that connects with concrete slab and mutually forms portions of the floor structure. this interconnected link between the concrete and the floor deck brings through a system of embossment and ribs which are built into the deck, making a reinforced concrete slab that provides the dual purpose of permanent form and constructive reinforcement.
there are two ways to place a concrete slab over steel beams. the common way, which is to pour concrete in corrugated sheet metal deck, placed over the steel beam.. in this case, you need nothing else. just pour concrete and go. pour concrete directly on top of steel beams.
advantages and disadvantages of composite steel slab . steel concrete composite beams steel concrete composite beams consists of a steel beam over which a reinforced concrete slab is cast with shear connectors. in conventional composite construction, concrete slabs are simply rested over steel beams and supported by them.