Horizontal Reaction with uplift vertical applied load

- March 11, 2019 at 8:52 pm
  
  Sam Fares
  Subscriber
  
  Hello,
  
  i have a 2310 pounds acting vertically upward at center of rod( pink). In the results , there is 801 pound in horizontal X-direction as shown below. How does a vertical uplift force produce a horizontal X-direction reaction?
  
  Regards,
  
  Sam
- March 11, 2019 at 9:56 pm
  
  peteroznewman
  Subscriber
  
  I expect there is an equal and opposite force of 801 lbs on the weld on the left.
- March 12, 2019 at 1:33 pm
  
  Sam Fares
  Subscriber
  
  Yes there is an equal and opposite. But i am wondering what causes or how this horizontal force develop when the applied force is vertical.
  
  Thanks Peter!
  
  Sam
- March 12, 2019 at 3:10 pm
  
  peteroznewman
  Subscriber
  
  When the angle brackets were bonded to the weld bead, which is fixed, there was no stress in the angle bracket.
  
  After the vertical load was applied, the angle brackets have rotated a significant amount, like 20 degrees, therefore the horizontal length has foreshortened by cosine(20 degrees) = 0.94, that creates tension in the horizontal leg of the angle bracket of 801 lbs.
  
  If this answers your question, please mark the post with Is Solution.
- March 12, 2019 at 3:14 pm
  
  Sam Fares
  Subscriber
  
  Thanks Peter!