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(Solved): Q: 1) Use the portal method and determine (approximately) the reactions at point A.2) Use the cantil ...


Q: 1) Use the portal method and determine (approximately) the reactions at point A.
2) Use the cantilever method and determine (approximately) the reactions at point A.

1) Use the portal method and determine (approximately) the reactions at point \( \mathrm{A} \). 2) Use the cantilever method
1) Use the portal method and determine (approximately) the reactions at point . 2) Use the cantilever method and determine (approximately) the reactions at point .


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Portal Frame Method
Consider the upper portion

Because ?Hx = 0. Therefore,
  
So, P = 0.75kN
Consider the lower portion
Because ?Hx = 0. Therefore,
  
So, P = 2.25kN

The point of Contra-flexure occurs at the middle of each column.


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