Diagonal tension in beam is
(a) Maximum at neutral axis
(b) Decreases below the neutral axis and
increases above the neutral axis
(c) Increases below the neutral axis and
decreases above the neutral axis
(d) Remains same
Answers
Answer:
The tension which is caused in the tension zone of the beat due to share at near the support is called as dignoal tension which is cause d by shear
Answer:
(a)
Explanation:
Shear analysis and design are NOT really concerned with shear as such.The real concern is with diagonal tension stress ; resulting from the combination of shear stress and longitudinal flexural stress. vmax = V/bd must be regarded merely as a measure of the average intensity of shear stresses in the section. The max. shear stress occurs at neutral axis with an angle of 45° Webs shear crack Flexural crack.
Web-shear crack occurs when the diagonal tension stress near the neutral axis becomes equal to the tensile strength of the concrete. Web shear cracking is relatively rare and occurs chiefly near supports of deep, thin webbed beam or at inflection points of continuous beam.