Civil Engineering - GATE Exam Questions - Discussion

Discussion Forum : GATE Exam Questions - Section 6 (Q.No. 1)
1.
A prestressed concrete rectangular beam of size 300 mm x 900 mm is prestressed with an initial prestressing force of 700 kN at an eccentricity of 350 mm at midspan. Stress at top of the beam due to prestress alone, in N/mm2 is
46 (tension)
2.59 (compression)
zero
8.64 (compression)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Priyanka said:   8 years ago
At top stress=p/a -pey/i.
=700 * 1000/300*900 -700*1000*350*450*12/300*900^3.
= 2.59-6.049.
= 3.46.

Priyanka said:   8 years ago
According to me, the answer is 3.46.

Am I right?

RAKESH KUMAR said:   9 years ago
Can someone solve this with the explanation?

Sumanthnunna said:   9 years ago
My Answer for this question is 3.519.


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