How to record base shear force during pushover analysis

[naba077]

Hi all,
How can I record the shear force at each story for displacement control pushover analysis? I tried with the recording node reaction but got a very different result.

I objective is to make a graph of shear force vs intra-storey drift.

Thanks in advance..

[fmk]

if you look at reactions at nodes anywhere other than the base they should be 0 if your model achieved convergence! .. your only option is to record element forces and add them up.

[naba077]

Thank you very much. I got it. But I've a small problem again. When I make a group of elements using region command and use it to define the recording the element forces, I got 12 no. of forces per element. As I have a 3D model, it should only be 6 forces per element.
So my question here is how can we see the elements/nodes inside the defined region (after defining it)??

PS:
I defined region like this:
"region 2 -eleRange 2020000 2021111 -eleRange 1020000 1021111
region 3 -eleRange 2030000 2031111 -eleRange 1030000 1031111
region 4 -eleRange 2040000 2041111 -eleRange 1040000 1041111"
And I define the element forces like this:
"recorder Element -file $dataDir/element_forces2.out -time -region 2 globalForce;
recorder Element -file $dataDir/element_forces3.out -time -region 3 globalForce;
recorder Element -file $dataDir/element_forces4.out -time -region 4 globalForce;"

[fmk]

3d equates to 12 forces per beam column element: 6 at each element end!!