8.4 DOUBLE INTEGRATION METHOD

In this method, the first moment, M at any distance x from one of the supports, is written with the sagging moment as positive.

 

Then                    image

Integrating,           image

and                            image

where C1 and C2 are constants.

Constants C1 and C2 are found by making use of boundary conditions.

  1. At simply supported/roller ends, deflection y = 0
  2. At fixed ends, deflection y = 0 and slope
  3. At point of symmetry ...

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