Calculating the vertical reaction and moment of a beam.

In summary, the conversation discusses the need to calculate the moment and vertical forces at points A and B for a 4x4 beam supported by 4x4 columns. The point load is estimated to be 10000kn and can be located anywhere on the beam. The question is asked if anyone knows the calculations for this scenario. The conversation also mentions a link to a diagram and asks about the fixations and material of the beams. It is suggested that the beams could potentially be made of wood and hung with steel beam hangers.
  • #1
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For a 4x4 beam 12' long supported by 4x4 8' tall colums I need to calculate the moment around A and B and the vertical forces at A and B based off the point load which for discussion purposes is in the middle of the beam but could be anywhere on the beam. Does anyone know the calculations? I understand the point load may be on the heavy side at 10000kn.

There is a link to a diagram of what I am referring to here (Points A & B):

https://onedrive.live.com/?authkey=!AJEMnjFSEAQhJw8&cid=DB0189AA1CD22777&id=DB0189AA1CD22777!502130&parId=DB0189AA1CD22777!1113&o=OneUp
 
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  • #2
upload_2017-12-27_10-48-41.png


What are the fixations at top and bottom of vertical beams and at connections of vertical beams to the horizontal one ?

You say 4 by 4 beams but are they solid wood or structural steel section ?
 

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  • #3
Well I think that these beams are hung with beam hangers made from steel and the fixations at the top an bottom should probably have break lines there. For discussion purposes the beams could be any material but I would like to use wood first if possible.
 

Related to Calculating the vertical reaction and moment of a beam.

1. What is the vertical reaction of a beam?

The vertical reaction of a beam is the force that the beam exerts on a support or wall in the vertical direction. This reaction is necessary to keep the beam in equilibrium and prevent it from collapsing under the weight of the load.

2. How do you calculate the vertical reaction of a beam?

The vertical reaction of a beam can be calculated using the equation R = W + P, where R is the vertical reaction, W is the weight of the beam, and P is the load applied to the beam. This equation is based on the principle of equilibrium, where the sum of all the forces acting on the beam must equal zero.

3. What is the moment of a beam?

The moment of a beam is the tendency of the beam to rotate around a point or axis. It is caused by the load applied to the beam and is calculated by multiplying the force by the distance from the point or axis.

4. How do you calculate the moment of a beam?

The moment of a beam can be calculated using the equation M = F x d, where M is the moment, F is the force applied to the beam, and d is the distance from the point or axis to the point where the force is applied. This equation is based on the principle of moments, where the sum of all the moments acting on the beam must equal zero.

5. What factors can affect the vertical reaction and moment of a beam?

The vertical reaction and moment of a beam can be affected by factors such as the type and weight of the load applied, the length and thickness of the beam, and the type and strength of the support or wall. Other factors, such as external forces like wind or seismic activity, can also have an impact on the reaction and moment of a beam.

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