Civil Engineering - GATE Exam Questions - Discussion
Discussion Forum : GATE Exam Questions - Section 2 (Q.No. 41)
41.
The following two statements are made with reference to a simply supported under-reinforced RCC beam :
With reference to the above statements, which of the following applies ?
- Failure takes place by crushing of concrete before the steel has yieled.
- The neutral axis moves up as the load is increased.
With reference to the above statements, which of the following applies ?
Discussion:
14 comments Page 2 of 2.
Ishant said:
5 years ago
Yes, D is correct.
Aamir said:
5 years ago
In over reinforced section concrete fails first and neutral axis goes down as load is increased answer is B.
Jack Cormac said:
4 years ago
@Sumit Dhyani.
you are partly correct but the answer is still D because;
"Failure takes place by crushing of concrete before the steel has yielded" Although the first part of statement 1 is correct but 2nd part isn't because steel has already yielded far before the ultimate failure due to crushing of concrete.
Regarding Statement 2 it's correct because when steel yields, the bottom part of the beam starts cracking and that area becomes negligible, hence N/A keeps shifting upwards as the cracks propagate higher and higher.
Thus option D is correct.
you are partly correct but the answer is still D because;
"Failure takes place by crushing of concrete before the steel has yielded" Although the first part of statement 1 is correct but 2nd part isn't because steel has already yielded far before the ultimate failure due to crushing of concrete.
Regarding Statement 2 it's correct because when steel yields, the bottom part of the beam starts cracking and that area becomes negligible, hence N/A keeps shifting upwards as the cracks propagate higher and higher.
Thus option D is correct.
(2)
Beka said:
3 years ago
Under higher compression force compared to tension force.
Is the neutral axis move above or below the centroidal axis?
Is the neutral axis move above or below the centroidal axis?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers