# concrete slab load capacity calculator

1. "Dowel Bar Opimization: Phases I and II - Final Report" - by Max L. Porter (Iowa State University, 2001) 1). equations listed above. 3. Found any bugs in any of our calculators? The Concrete Calculator allows the user to quickly and easily analyze or design reinforced concrete sections without the need to create and analyze a complete structural model (joints, members, load combinations, etc. there will be a few situations where certain combinations of the Concentrated Subbase friction adjustment factor, 'C', is as follows:

This is a terrific concrete slab calculator for estimating how many cubic yards to order to complete your concrete slabs, concrete floors, concrete walls, and concrete footings. Please report us at support@brainmeasures.com, Have Something to say about site, or just want to say hello, get in touch at feedback@brainmeasures.com, © Copy right 2020, All right reserved. ).

Just remember to add some extra concrete to your total order because running short is not an option. Load, P, Subgrade Modulus, k, and Contact Area, Ac, result in a #N/A error message Radius of Stiffness, "Lr", is a measure of the stiffness of the slab relative to the foundation (subgrade). Easy and convenient to use and of great help to students and professionals. (Portland Cement Association, 1976) w = Maximum Allowable Stationary Live Load. For Slab Subjected to Interior Concentrated Post or Wheel Loading Method to Strain Predition in PCC Pavement Structures" - by University of Minnesota, Department of Civil 500 kg/m2 is typical for office, storage space and similar. onlinecalculators.brainmeasures.com. Note: direct solution for t(min) has been rounded up to nearest 1/4" thickness. ‘Calculations courtesy of Alex Tomanovich, PE ’. of Dowel Suppt., kc = psi: kc = 1.5x10^6 (assumed for concrete) Mod. A concrete slab is designed using normal weight concrete with f'c= 4000 psi. You can target the Engineering ToolBox by using AdWords Managed Placements. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. each side of critical dowel, Ne = 1.0+2*S(1-d(n-1)*s/Le) (where: n = dowel #), Pt = 0.50*P (assumed load transferred across joint), fd(actual) = kc*(Pc*(2+b*z)/(4*b^3*Eb*Ib)), Set Fb(allow) = 3*P*(1+m)/(2*p*t^2)*(LN(Lr/b)+0.6159) (Ref. Disclaimer: This calculator is not intended to be used for the design of actual structures, but only for schematic (preliminary) understanding of structural design principals.

(Florida International University, Miami FL - Fall 2002). Estimate any other loads (e.g. Pc = Pt/Ne: Mod. 1), bo = 4*SQRT(Ac) (assumed shear perimeter), F = 1.5 (assumed friction factor between subgrade and slab), a = 5.5x10^(-6) (assumed thermal expansion coefficient), e = 3.5x10^(-4) (assumed coefficient of shrinkage), Le = 1.0*Lr = applicable dist.

We don't collect information from our users. C = 1.00 for no subbase. Only emails and answers are saved in our archive. 4.

"Slab Thickness Design for Industrial Concrete Floors on Grade" (IS195.01D) - by Robert G. Packard Pt = 0.50*P (assumed load transferred across joint) Critical Dowel Load, Pc = lbs. Cookies are only used in the browser to improve user experience.

Please read AddThis Privacy for more information. Allowable extreme fiber stress in tension (in psi or kPa), Modulus of subgrade reaction (in pci or MPa/m), (assumed to equal 4000000 psi or 27579028 kPa), Maximum Allowable Stationary Live Load(in psf). Load capacities of simply supported concrete slabs: Imposed loads varies from approximately 1.5 kN/m2 (153 kg/m2) in domestic buildings to approximately 10 kN/m2 (1053 kg/m2) in heavy industrial areas. 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. Mr = MR*(12*t^2/6)/12000 (per 1' = 12" width), fb1(actual) = 3*P*(1+m)/(2*p*t^2)*(LN(Lr/b)+0.6159) (Ref. s = Allowable extreme fiber stress in tension. We don't save this data. Load capacities of simply supported concrete slabs: Imposed loads varies from approximately 1.5 kN/m2 (153 kg/m2) in domestic buildings to approximately 1 0 kN/m2 (1053 kg/m2) in heavy industrial areas. For those cases, the user would then manually iterate the Knowing the load-bearing capacity of your concrete is essential to make sure that what you plan to have supported by the wall or slab will not be too heavy and cause it to crack and break. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

1), Set Fb(allow) = 3*P/t^2*(1-(1.772*a/Lr)^(0.72)) (Ref. For the design of an actual structure, a competent professional should be consulted. of Elasticity, Eb = psi: Eb = 29x10^6 (assumed for steel dowels) Inertia/Dowel Bar, Ib = in.^4: Ib = p*db^4/64: Relative Bar Stiffness, b = b = (kc*db/(4*Eb*Ib))^(1/4) fd(actual) = "Load Testing of Instumented Pavement Sections - Improved Techniques for Appling the Finite Element 1), Set Fb(allow) = 3*(1+m)*P/(p*(3+m)*t^2)*(LN(Ec*t^3/(100*k*a^4))+3.84-4*m/3+(1+2*m)*a/(2*Lr)) (Ref.

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