Loads on slabs.
Definitely a time saver when you're on the job. While cracks in a slab may not seem like a big deal, the smallest crack represents a large amount of downward pressure that may be crushing pipework beneath the slab.
The load distribution follows a simple rule.
For Dead Load you have to multiply density of RCC (25 KN/m3) with thickness of that RCC slab (thickness, you can calculate it either by formula in IS-456–2000 that depends on shorter span of slab OR you can take minimum thickness i.e. The load of slab will be distributed to beam in 45 degree dispersion of slab plan area. 2. 3. Of […] Calculators for structural engineers, construction professionals and steel building specifiers For analysis purpose, it is we consider a 1 m x 1 m square section & calculate the volume of the RCC & then the same is multiplied with the density for the derivation of pressure in kN/m 2. When estimating the amount of concrete for my concrete jobs, I always check the level of the subgrade and come up with an average thickness. It mainly depends on the structure design. Initially calculate load intensity of slab considering a) Dead Load including self weight / Sqm, weight of floor finishing or roof terracing, weight of plastering, snow load per sqm as applicable as per Loading Codes b) Live load per Sqm. The above equation assumes that the load acting on the slab is unique and no other nearby loads are affecting the calculation. Slab is supported on all edges e.g. Every point on the slab distributes it's dx load to the nearest support (beam or column) on which that slab is rested. The Construction and Design of Concrete Slabs on Grade D. Matthew Stuart, P.E., S.E., F.ASCE, SECB COURSE CONTENT Slab on Grades Construction: Introduction Concrete slabs on grade are a very common type of concrete construction.
RE: How to calculate point load on suspended slab jike (Structural) 17 Jul 08 19:13 A simple way of calulating primary bending with a single concentrated load on a one way slab is to assume it spreads out over 0.6 times the span (sometimes refered to as the effective width). Self weight of slab acts: This load acts as UDL, this is calculated after assuming the 1m wide square strip and … To calculate the load-bearing capacity of RCC slab, certain assumptions to be considered. The only way to specifically calculate the load capacity of concrete is to have a licensed structural engineer process the formulas and consult a myriad of tables that all apply to the specific design of your project. Slab: RCC slabs, the weight of roof slabs is applied as uniform pressure in kN/m 2.
Assumptions: 1. In this paper Westergaard provides an analytical elastic analysis of concentrated loads on a slab, and gives an equation that gives the effective width of slab for an applied force at the center of the span as 0.58 * Span + 2*c, where c is the diamater of the assumed circular contact area. online free live maximum floor live load capacity is a great engineering tool to help you calculate floor strength use it now. How I calculate concrete for my jobs. Allowable extreme fiber stress in tension (in psi or kPa) (Assumed to be 1/2 flexural strength) Thickness of slab (in inches or mm) Modulus of subgrade reaction (in pci or MPa/m) Modulus of elasticity (in psi or kPa)