Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 34)
34.
The deflection of any rectangular beam simply supported, is
Discussion:
45 comments Page 2 of 5.
Zia-Ur-Rehman said:
6 years ago
In every equation for rectangular beam, there is a term variable/EI (I= bh^3/12) in the denominator, while the rest of variables change with loading conditions, therefore the given answer is correct.
(2)
Niraj Adhikari said:
6 years ago
As we know pure bending formula,
M/I =E/R ( particular).
Where 1/R= deflection.
So deflection is proportion to bending moment and inversely proportion to flexural rigidity (EI) where I for rectangle section is bd^3/12.
Hence, deflection is inversely proportioned to with and also a cube of its depth.
M/I =E/R ( particular).
Where 1/R= deflection.
So deflection is proportion to bending moment and inversely proportion to flexural rigidity (EI) where I for rectangle section is bd^3/12.
Hence, deflection is inversely proportioned to with and also a cube of its depth.
Ajay Desai said:
7 years ago
As per my knowledge, the answer will be (E). Because;
(a) not directly proportional to its weight but the load.
(b) I may be 1/12 db^3.
(c) same as (b).
(d) power of l changes with the load.
(a) not directly proportional to its weight but the load.
(b) I may be 1/12 db^3.
(c) same as (b).
(d) power of l changes with the load.
Chanchal said:
7 years ago
Loading condition is not given. We can't determine the deflection of any particular case. So, the right answer should be none of these.
Imtichuba chang said:
7 years ago
C is correct. I agree with the given answer.
RAKESH said:
7 years ago
Only I=BD*3/12 will remain same in all condition of deflection. So, C option must be right.
Rahul said:
7 years ago
But depth effect will be more on deflection as (d^3).
So, it is C.
So, it is C.
AKV said:
7 years ago
A is correct.
Because weight will act as load.
Because weight will act as load.
Azzu said:
7 years ago
As per my knowledge, the answer should be B and C.
Abdul sovan khan said:
8 years ago
I think 'E' option should be 'ALL OF THESE'.
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