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
What is W.M.M. roads? Where its used ?


Q. Segmentally lined and Sprayed Concrete Linings tunnels? The fundamental difference between segmentally lined tunnels and SCL tunnels is that the sprayed concrete in SCL tunn

classification of foundation

NEED TO DESIGN A CANTILEVER RETAINING WALL 8M HIGH, SATURATED UNIT WEIGHT IS 16KN/M3, SURCHARGE IS 7KN/M2, LOAD ABOVE WALL SUPPORTED ON WALL STEM IS 10KN/M RUN, ANGLE IN INTERNAL F

Testing of Aggregates: For use in pavement, road aggregates have to be strong, durable and of good shape. A well-graded aggregates adds to the stability of the layer. The fol

Define the Net Positive Suction Head All values in the equations are in units of feet.  Note: Only use values related to the suction side of the pump.   NPSHR = Net Posi

the two sides of a triangle are 17cm and 28 cm long, and the length of the median drawn to the third side is equal to 19.5. find the distance from an endpoint of this median to the

Theorem of three moments: You have been introduced to the analysis of one of the important class of structures, namely Statically Indeterminate Structures. You have been intro

Define Abrasion - underwater inspection of bridge? Deterioration of substructures by abrasion is caused by wave action, the velocity of the currents and the action of suspended