The basic principal is that the concrete in bottom half of RCC slab is structurally not required as concrete acts as compression material which is required in top half portion of slab. Regarding pouring a slab directly on a footing it is done sometimes but I prefer seeing the top of the footing 4 or more inches below the bottom of the.
Sketch By P J Jayadev Workshop Day 3 At Laurie Baker Centre Trivandrum Slab Laurie Architecture Sketch
In case of continuous slab the support section is designed as doubly reinforced rectangular beam.
. These filler materials are so placed as not to compromise the structural strength stability and durability resulting in replacing unwanted and non-functional tension concrete from below and thus resulting in economy of high energy materials consumption and considerable cost saving and decreased dead load of the slab. Get Your Free Estimate. The slab is represented by a mesh of slab segments called elements joined to each other at nodes.
Improved thermal comfort for the interiors. Generally speaking for a slab thickness of 125mm the filler material depth should not exceed 60mm. The contractor MUST prevent the top of the slab from drying out too quickly.
This method of construction is called filler slab. Create an interesting look. Save on construction cost.
This filler slab is analyzed using STAADPro and ANSYS software. FE is increasing in popularity. In Nigeria clay hollow pot and sandcrete blocks have been successfully used but on the rise is the polystyrene.
Such calculations require a knowledge of the supporting beam or column dimensions A reasonable 1 8. A filler slab with two stacked clay tiles as shown in the sketch above also increases the thermal insulation of the slab. As the name suggests in a filler slab part of concrete in the bottom of the slab in the tension zone to be specific is replaced by filler materials.
Patterned ceilings Filler slabs provide aesthetically pleasing patterned ceilings. Filler slab is alternate slab construction technology where part of concrete in bottom of slab is replaced by filler material. In most houses the filler material is left open without plastering to form aesthetic design symmetry but some residents prefer to cover the space with Plaster of Paris.
What is filler slab. Filler slab is compared with the conventional slab of same size. Easy to use Software becoming more widely available Very accurate if used properly better than Grillage.
The filler blocks are placed between the reinforcement spacing by providing a cover of 20mm. Select slab thickness to satisfy deflection and shear requirements. The filler materials are granite dust and foundry sand.
The filler materials are granite dust and foundry sand. The design integrity of a filler slab involves careful planning taking into account the negative zones and reinforcement areas. The elements can be triangular rectangular or quadrilateral.
FILLERS RE-BARS SERVICE LINES. Laurie Baker and these technology is mostly use as low. To sum it up consider using a filler slab for the following.
Two-way slab is designed. Determine whether the slab geometry and loading allow the use of the direct design method as listed in DDM. This filler slab is analyzed using STAADPro and ANSYS software.
Ad Affordable Permanent Repairs For All Sunken Concrete Problems. Filler slab construction which reduces the self-weight of slabs and has reduced loads along the rest of the load path up to foundation is an effective way for cost reduction. The filler slab can be designed like a conventional RCC slab as per IS 456-2000 design guidelines The thickness of filler material should not exceed the depth of the neutral axis.
Filler slab is alternate slab construction technology where part of concrete in bottom of slab is replaced by filler material Due to reduced concrete and thus about 40 less steel is required so these fillar slab technology make huge difference between normal slab cost and fillar slab cost. The filler slab can be designed like a conventional RCC slab as per IS 456-2000 design guidelines The thickness of filler material should not exceed the depth of the neutral axis. Filler materials are placed without compromising structural strength stability and durability replacing unwanted and non-functional tension concrete from below - resulting in cost savings 20and decreased dead load.
Ad Design your Multispan Beams or Columns Using the Latest NDS Design Code. The major advantage of ribbed slab with permanent blocks is the reduction in the quantity of formwork required given the fact that strength of the blocks is normally not assumed to contribute to the strength of the slab in design. Filler slab is compared with the conventional slab of same size.
Reduce use of energy intensive materials embodied energy. Owing to the construction of the slabonce done with the shuttering the reinforcement are laid in a grid form with the sizes depending on its structural designWith considerations in choosing the filler material it has to be inert in natureless weight and has to fit the structurally reinforced gridThe filler should be soaked in water well before being placed as. Analysis Design per AISC ACI IBC ASCE NDS Codes.
Many structural engineers have for a long time been convinced that the effect of casing steel beams in concrete in the manner which has obtained for many years with the filler-joist floor has a strengthening effect upon the floor and that it is safe to design the steelwork in such floors upon higher stresses than the extreme fibre stress of 75 tons per square inch which is usually. Slab design such as a structural reinforced slab a slab that includes stiffening beams or a slab not directly supported by the soil such as on a beampile or stem wall foundation. Filler slab is supposed to be a cost effective efficient simple and very innovative construction technology for slab construction if it is effectively designed and constructed.
The fillar slab is invented by the Ar. 5 Structural design The filler slab may be analyzed as a two way spanning grid slab. We Are Your Local Experts for Commercial Concrete Repair Solutions.
The midspan section is designed as a T-beam with cast-in-situ concrete of flange taking compression and reinforcement at the bottom of the slab in the web portion taking tension.
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