New Hampshire Concrete Cutting
Manchester, NH
Call Now 603-622-4441

Concrete Cutting - Core Drilling - Wall Sawing - Flat Sawing

Concrete Cutting Home
Concrete Cutting Services
Convert Your Single Family
Employment Opportunities
Frequently Asked Questions
Installing a Precast Bulkhead
Basement Remodeling
Do It Your Self Concrete Cutting
What is Concrete Cutting?

Amherst Concrete Cutting
Concrete Cutting Antrim
Concrete Cutting Atkinson
Concrete Cutting Auburn
Concrete Cutting Bedford
Concrete Cutting Bennington
Concrete Cutting Brentwood
Concrete Cutting Brookline
Concrete Cutting Candia
Concrete Cutting Chester
Concrete Cutting Danville
Concrete Cutting Deerfield
Concrete Cutting Deering
Concrete Cutting Derry
Concrete Cutting East Kingston
Concrete Cutting Epping
Concrete Cutting Exeter
Concrete Cutting Francetown
Concrete Cutting Fremont
Concrete Cutting Goffstown
Concrete Cutting Greenfield
Concrete Cutting Greenland
Concrete Cutting Greenville
Concrete Cutting Hampstead
Concrete Cutting Hampton
Concrete Cutting Hampton Falls
Concrete Cutting Hancock
Concrete Cutting Hillsborough
Concrete Cutting Hollis
Concrete Cutting Hudson
Concrete Cutting Kensington
Concrete Cutting Kingston
Concrete Cutting Litchfield
Concrete Cutting Londonderry
Concrete Cutting Lyndeborough
Concrete Cutting Manchester
Concrete Cutting Mason
Concrete Cutting Merrimack
Concrete Cutting Milford
Concrete Cutting Mont Vernon
Concrete Cutting Nashua
Concrete Cutting New Boston
Concrete Cutting New Castle
Concrete Cutting Newfields
Concrete Cutting Newington
Concrete Cutting New Ipswich
Concrete Cutting Newmarket
Concrete Cutting Newton
North Hampton
Concrete Cutting Northwood
Concrete Cutting Nottingham
Concrete Cutting Pelham
Concrete Cutting Peterborough
Concrete Cutting Pinardville
Concrete Cutting Plaistow
Concrete Cutting Portsmouth
Concrete Cutting Raymond
Concrete Cutting Rye
Concrete Cutting Salem
Concrete Cutting Sandown
Concrete Cutting Seabrook
Concrete Cutting Sharon
South Hampton
Concrete Cutting Stratham
Concrete Cutting Temple
Concrete Cutting Weare
Concrete Cutting Wilton
Concrete Cutting Windham
Concrete Cutting Windsor

Concrete Cutting Sawing Seabrook NH New Hampshire

Welcome to AffordableConcreteCutting.Net

“We Specialize in Cutting Doorways and Windows in Concrete Foundations”

Are You in Seabrook New Hampshire? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 603-622-4441

We Service Seabrook NH and all surrounding Cities & Towns

“No Travel Charges – Ever! Guaranteed!”

Concrete Cutting Seabrook NH   

Concrete Cutter Seabrook NH     

Concrete Coring Seabrook NH    

Core Drilling Seabrook NH                       

Concrete Sawing Seabrook NH

Concrete Sawing Seabrook New Hampshire

Concrete Cutting Seabrook New Hampshire    

Concrete Cutter Seabrook New Hampshire      

Concrete Coring New Hampshire           

Core Driller Seabrook NH             

Core Drilling Seabrook New Hampshire            

Under this condition, the average pressure on the concrete of the concrete slab i8 always greater than c, or at least it is never less than e. As previously explained, the average pressure just equals 1c when the neutral axis is at the bottom of the concrete slab. We may therefore say that the total pressure on the concrete slab is always greater than I- c b t. We therefore write the approximate equation: M=cbt > (dt). As before, the values obtained from this equation are safe, but are unnecessarily so. Applying them to Example 2, Article 291, by substituting M = 1,350,000, b' = 60, t = 4, and (d - t) = 24.5, we compute c = 459. But we know that this approximate value of c is greater than the true value; and if this value is safe, then the true value is certainly safe. The more accurate value of c, computed in Article 291, is 352. If the value of c in Equation 38 is assumed, and the value of d is computed, the result is a depth of concrete beam unnecessarily great.

If the concrete beam is so shallow that we may know, even without the test of Equation 36, that the neutral axis is certainly within the concrete slab, then we may know that the center of pressure is certainly less than - I from the top of the concrete slab, and that the lever-arm is certainly less than (d - I); and we may therefore modify Equation 37 to read: A (d—t). Applying this to Example 1 of Article 291, and substituting = 900,000, s = 16,000, (d - - I) = (13.75 - 1.67) = 12.08, we find that A = 4.65, instead of the 4.59 previously computed. This again illustrates that the formula gives an excessively safe value, although in this case the difference is small. Equations 37 and 38 should be considered as a pair which is applied according as the steel or the concrete is the determining feature. When the percentage of steel is assumed (as is usual), both equations should be used to test whether the unit-stresses in both the steel and the concrete are safe. It is impracticable to form a simple approximate equation corresponding to Equation 39, which will-express the moment as a function of the compression in the concrete. Fortunately it is unnecessary, since, when the neutral axis is within the concrete slab, there is always an abundance of compressive strength.

Every solution for concrete beam construction should be tested at least to the extent of knowing that there is no danger of failure on account of the shear between the concrete beam and the concrete slab, either on the horizontal plane at the lower edge of the concrete slab, or in the two vertical planes along the two sides of the concrete beam. Let us consider a T-concrete beam such as is illustrated in Fig. 106. In the lower part of the figure is represented one-half of the length of the flange, which is considered to have been separated from the rib. Following the usual method of considering this as a free body in space, acted on by external forces and by such internal forces as are necessary to produce equilibrium, we find that it is acted on at the left end by the abutment reaction, which is a vertical force, and also by a vertical load on top. We may consider F' to represent the summation of all compressive forces acting on the flanges at the center of the concrete beam. In order to produce equilibrium, there must be shearing force acting on the underside of the flange. We represent this force by Sli. Since these two forces are the only horizontal forces, or forces with horizontal components, which are acting on this free body in space, F' must equal S. Let us consider z to represent the shearing force per unit of area. We know from the laws of mechanics that, with a uniformly distributed load on the concrete beam, the shearing force is at the ends of the concrete beam, and diminishes uniformly towards the center, where it is zero. Therefore the average value of the unit-shear for the half-length of the concrete beam must equal z. As before, we represent the width of the rib by b.

Are You in Seabrook New Hampshire? Do You Need Concrete Cutting?

We Are Your Local Concrete Cutter

Call 603-622-4441

We Service Seabrook NH and all surrounding Cities & Towns