How to calculate the combined stresses, Civil Engineering

Compute the stresses at top and bottom fibers in a simply supported pre-stressed concrete beam with a rectangular cross section, 250 mm wide and 450 mm deep, as shown in Figure, at sections A-A, B-B and C-C, due to the following cases of pre-stressing.

(i)  A pre-stressing force of 350 KN concentrically applied.

(ii) A pre-stressing force of 260 KN, eccentrically applied with a constant eccentricity of 60 mm towards the soffit of the beam.

 In both the cases, the beam is subjected to its self load and an imposed load of 6 kN/m over the entire span of 5 m. Density of the beam may be taken as 24 kN/m3. Calculate the combined stresses at these sections at top and bottom fibres.

 

Posted Date: 10/5/2013 3:03:18 AM | Location : United States







Related Discussions:- How to calculate the combined stresses, Assignment Help, Ask Question on How to calculate the combined stresses, Get Answer, Expert's Help, How to calculate the combined stresses Discussions

Write discussion on How to calculate the combined stresses
Your posts are moderated
Related Questions
a) Explain Terzaghi's theory of bearing capacity of shallow strip foundations. Determine the three bearing capacity factors and give their values for  Φ  = 0' case. (b) Descreib


A load of 3000 kN is being taken by a square column footing. Side of the column is 3 m, footing rests on a silty soil with a Poisson's ratio = 0.3. Modulus of elasticity of the soi

use of centroid in civil engineering

What is the Pre-tensioned concrete In Pre-tensioned concrete tendons are kept stretched with suitable mechanisms and concrete is cast into the forms through which stretched ten

how can Simulink calculate wave speed of water hammer

Q. Test on complete bearings? Two bearings should be selected at random from the 'lot'. Various tests should be conducted on these 'test bearings'. These bearings should be exc

Skid resistance of wearing course Skid resistance of wearing course in a bituminous pavement is contributed by macro texture (which implies the general surface roughness) and

Q. Write short notes on Impact Test? Impact test for ballast shall be carried out using Impact testing machine. The test sample shall be prepared out of ballast so as to con

what is the difference between paneled and glazed shutter