Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 9)
9.
The shape of the bending moment diagram over the length of a beam, having no external load, is always
Discussion:
36 comments Page 3 of 4.
Puja sonar said:
9 years ago
@All.
No, parabola is not a correct answer. Linear is correct.
No, parabola is not a correct answer. Linear is correct.
Tejaswini said:
9 years ago
Linear is correct. In any problems we are not considering the self weight while calculating sf and bm. Self weight of beam is neglected.
Rajesh Khandar said:
9 years ago
Yes, linear is correct.
Dalisha said:
9 years ago
Linear is correct because if we consider its self-weight as udl then for finding sfd and bmd by external loads we must consider its self-weight also and give its effect combined with udl.
Krishna sharma said:
9 years ago
In the calculation of bending moment and shear force, we do not consider the self-weight of the beam. So linear is correct.
Krishna sharma said:
9 years ago
For finding bending moment and shear force in the beam, we do not consider the self-weight of the beam that why in the case of no external load. Bending moment diagram will linear.
Mujru said:
9 years ago
Here no act loading in this beam so the corect answer is Linear (here self weight of the beam are no prefer).
Sunil said:
10 years ago
Parabola is correct answer because when any external load is not subjected to the beam so beam is acting only self weight and self weight is always in the form of udl and we known that for udl loading bmd is parabolic and smd is inclined.
Salil gurudev said:
10 years ago
If self with neglected then answer will be linear.
But if self with include answer will be parabola.
But if self with include answer will be parabola.
N adeppa said:
10 years ago
Linear is correct. Self weight of beam act as point load at its center as in case of ssb, hence bending moment is linear in variation.
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