# Concrete Archive

## Stress Strain Curve Explanation

Stress strain curve is a behavior of material when it is subjected to load. In this diagram stresses are plotted along the vertical axis and as a result of these stresses, corresponding strains are plotted along the horizontal axis. As …

Crushing load  is the intensity of load required to crush the material. Crushing load of a material can be found out by taking out crushing stress test. Crushing load will be the load corresponding to the stress at which material …

## Wall Footing Design Example

Wall footing design is carried out with some assumptions that should be considered while designing. The first assumption is to  consider that soil pressure is distributed linearly throughout. This can only be achieved, when resultant of soil pressure coincides with …

## Combined Footing Design

Combined Footing Problem Statement  Design a rectangular combined footing to support two columns shown above. The edge column on the left has a section of 16” x 16” and carries dead & live load of 175 kips & 110 kips …

## Reinforced Beam Analysis

Reinforced beam analysis is carried out to check the nominal moment of the beam. When beam is analyzed than one already know about the beam cross section, steel area and effective depth of beam. In analysis, answers are unique. There …

Loads are the forces that come on the structure during construction or during service period. It is very necessary to define all the loads that structure is going to support, once the dimensional requirements have been defined. It is so …

## Reinforced Concrete Beam Design Example

Statement A single reinforced rectangular beam has a width of 11” and effective depth of 18”. If f’c = 3ksi and fy is 40ksi. Calculate the moment capacity Mn, if As = 5in2 Given Width of beam = b = …

## f’c Concrete Compressive Strength

Definition: f’c  is the specified compressive strength of concrete using standard cylinders of six inches diameter and twelve inches height. Usually this is prescribed at the age of 28 days. f’c Explanation The word specified means here usually a set of …

## Combined Axial and Flexural Loads On Columns

Column members of a building goes under combined axial and flexure loads when they are eccentrically loaded. In the picture above, the pressure distribution at the base of the column under eccentric load has been discussed. Depending upon the magnitude …

## Location of Cracking In Concrete

The cracking phenomena usually start at ITZ- level. This level is considered to be a very thin region having access water and less cement. When water is consumed due to hydration of any other kind of purpose than it leaves …