And as per my observations the usage may depend upon the live load over the slab depending upon whether the load is point load or distributed. A civil engineer with good practice may help you more about this :)
Design of Waffle Slab (without beams) by Direct Design Method 32 32 32 C 1 C 2 C 3 C 4 132 C
Slabs can be of solid, ribbed, and waffle types. Depending on their load carrying behavior, they are classified as one-way slab and two-way slab. In practices, the choice of one-way slab and two-way slab for a particular structure will largely depend upon the economy, buildability, loading conditions and length of the span.
Ribbed (Waffle) Slab System. Ribbed floors consisting of equally spaced ribs are usually supported directly by columns.They are either one-way spanning systems known as ribbed slab or a two-way ribbed system known as a waffle slab.
Ribbed slabs are suitable for medium to heavy loads, can span reasonable distances, are very stiff and particularly suitable where the soffit is exposed. Waffle Slab Construction Slab depths typically vary from 75 to 125 mm and rib widths from 125 to 200 mm. Rib spacing of 600 to 1500 mm can be used.
Waffle slabs tend to be deeper than the equivalent ribbed slab. Waffle slabs have a thin topping slab and narrow ribs spanning in both directions between column heads or band beams. The column heads or band beams are the same depth as the ribs.
A waffle slab is a type of building material that has two-directional reinforcement on the outside of the material, giving it the shape of the pockets on a waffle.; This type of reinforcement is common on concrete, wood and metal construction.A waffle slab gives a substance significantly more structural stability without using a lot of additional material.
Two-Way Joist Concrete Slab Floor (Waffle Slab) System Analysis and Design Design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf.
Where this system is used ? Waffle slab can be used as both ceiling and floor slab. They are used in the areas where less number of columns are provided, i.e. it is basically used in th areas which has huge spans. Waffle slab is not used in typical construction projects.
Ribbed and waffle slabs provide a lighter and stiffer slab than an equivalent flat slab, reducing the extent of foundations. They provide a very good form of construction where slab vibration is an issue, such as laboratories and hospitals.
Ribbed (Waffle) Slab System Ribbed floors consisting of equally spaced ribs are usually supported directly by columns.They are either one-way spanning systems known as ribbed slab or a two-way ribbed system known as a waffle slab.
The thickness of waffle slab recommended is 85 to 100 mm while the overall depth of slab is limited to 300 to 600 mm. The width of beams or ribs provided in waffle slab are generally 110 to 200 mm. Spacing of ribs recommended is 600 to 1500 mm.
What structural system can give me a big distance between columns? ... Can post tension slab in this larger span? Structural Engineering. ... Waffle/ ribbed slab. 2) Pre-stressed beam ...
What is the difference between waffle slab and ribbed slab? Waffle slabs are two-way spanning slabs whose beams(in two diresctions) are at very close centres whereas a ribbed slab is a one way spanning slab whose secondary beams are at … very close centres, but not their primary beams.
Flat slab/plate or waffle slab [LFLS] Slabs and columns are constructed without beams. Unlike flat plates, flat slabs have capitals and/or drop panels at the tops of columns. (A capital is the upper portion of the column, which is usually of conical shape and larger in cross-section than the remaining portion of the column; a drop panel is a ...
A flat slab is a two-way reinforced concrete slab that usually does not have beams and girders, ... Slab. What is slab? Difference between One Way Slab and Two Way Slab System; Flat Slab. What is flat slab? Advantages and Disadvantages of Flat Slabs; Flat Slab Analysis, Design and Detailing pdf;
waffle slab with solid heads, and the second is a waffle slab with band beams along column ... In this paper, the optimum design of reinforced concrete waffle slabs is sought using the simple genetic algorithm. A computer program is written using Matlab to formulate the problem and perform the ... Successive span lengths (centerline-to ...
Technical Note 4 2 STRUCTURAL MODELING DESIGN CONSIDERATIONS The principal advantage of a waffle slab or joist constriction is the composite interaction of
FIGIRE 1-4 ANALYSIS OF A LONG-SPAN WAFFLE SLAB WITH STOUT ... The principal advantage of a waffle slab or joist constriction is the composite interaction of ... Technical Note 5 slab does not adequately represent the mechanical properties of a stemmed floor
Waffle slabs are a reinforced concrete footing and slab system constructed on the ground.They consist of a perimeter footing (edge beam) and a series of narrow internal beams (strip footings) at one-meter nominal centers running each way.
the difference between two way slabs and flat slabs are load tranfer and resting of slabs. ... what is the difference between two way slab and flat slab? what is the benifits of flat slab?.. Answer / sudhir patel. In two way slab, the slab is supported by beams, the load of both slab and beams is conveyed to columns and footings. ...
waffle slab Design process. Concrete slabs are created according to three basic designs of which waffle slab is the most innovative. Each slab design is focused on enhancing the structure’s strength to weight quotient. All three designs contain a flat top surface with modulated undersides which makes them different from one another.