Civil Engineering - Theory of Structures - Discussion
Discussion Forum : Theory of Structures - Section 1 (Q.No. 4)
4.
The point of contraflexure is the point where
Discussion:
20 comments Page 2 of 2.
Ashish Tadewar said:
8 years ago
Shear force changes its sign and BM is max at the point of contra flexure.
Mahesh said:
9 years ago
Point of contraflexure is the point at which bending moment changes sign not the point at which bending moment is zero.
E.g. for a cantilever carrying a point load at its free end. BM at the free end is zero but no sign change ocure so it is not a point of contraflexure.
E.g. for a cantilever carrying a point load at its free end. BM at the free end is zero but no sign change ocure so it is not a point of contraflexure.
(2)
Belal hossain said:
9 years ago
The point of bending moment =0.
Kuldeep said:
9 years ago
The point of contraflexure is mid point of beam where are bending moment are zero.
Kamal said:
10 years ago
I think When SF change its sign at that point call a point of contraflexure. So at that time SF becomes zero and when SF becomes zero BM becomes maximum.
Emmanuel said:
10 years ago
Were sagging B.M changes to hogging. That is from positive to negative or can be said to be point of zero shear force.
Deepak pathak said:
1 decade ago
Because if s.f=0. Maximum B.M will be their.
Mavish said:
1 decade ago
At contraflexure S.F is max so ultimately B.M is zero. And at this point B.M changes its sign means 1st it will reach 0 then change in sign occur.
Cyruz said:
1 decade ago
I was taught by my lecturer that the point of contraflexure is the point where the bending moment is zero. How true is that?
Divyanshu sah said:
1 decade ago
Point of contraflexure is where BM changes its sign i.e from +to- or -to+.
S.F is maximum at that point.
S.F is maximum at that point.
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